The International Association for Automation and Robotics in Construction
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Abstract: The need for automation has conventionally been driven by the shortage and rising costs of skilled workers. There has been a perception that in emerging countries such as India, the priority for automation is low due to the availability of skilled workers. However, the massive scale of infrastructure development planned ...
Abstract: Productivity is a comprehensive problem in many countries. Particularly in construction and resources sectors, low productivity will potentially discourage future investments as building assets is becoming more and more unaffordable and unsustainable. In recent years, Building Information Modelling (BIM) is becoming much more active than ever. In order to fully ...
Abstract: Access to sustainable, affordable and secure energy is one of the major Australian strategic priorities to maintain and improve the health of Australians, sustain economic growth, and to mitigate climate change. Australia is investing in clean, efficient, reliable energy systems to secure a prosperous and, environmentally sustainable future. In addition, ...
Abstract: Conventional construction reached its limits. Numerous construction projects, such as Cologne subway site causing a billion euro collapse of a library containing cultural heritage assets, the x times cost overruns of Elbphilharmony Hamburg and the x tens of thousands quality defects of Berlin Brandenburg Airport indicate the necessity of an ...
Abstract: Tunnels environments are characterized by dust, humidity, and absence of natural light. Artificial and natural impacts, change in load criteria, or the simple effect of ageing, make tunnels require inspection and maintenance. These operations are commonly performed by human workers taking time and expertise without guarantee quality control. Robotic tunnel ...
Abstract: Leveraging the advanced estimation and control algorithms for power systems have always been associated with the renewable energy sources, rational power generation, consumer stimulus, emission reduction, as well as economically viable objectives. The model predictive control (MPC) strategies, that employ an economic-related cost function for real-time control, has lately proved ...
Abstract: Infrastructure robotics is about research on and development of methodologies that enable robotic systems to be used in civil infrastructure inspection, maintenance and rehabilitation. This paper briefly discusses the ...
Abstract: Bridge deck inspection is essential task to monitor the health of the bridges. This paper reports the data collection and analysis for bridge decks based on our novel robotic system which can autonomously and accurately navigate on the bridge. The developed robotic system can lessen the cost and time of ...
Abstract: Electric power industry is undergoing a profound change. The change is driven by technical, economic and environmental factors. The emerging challenges are particularly significant for distribution grids, where the level of automation or smartness is relatively low. With the push for energy conservation, demand-side management (DSM) and demand response (DR) ...
Abstract: An intelligent civil structure offers ultimate protection to its structure, contents and occupants in terms of safety and functionality against undesired dynamic loadings and structural deficiency. In this paper, the concept of the future intelligent civil ...
Abstract: Users are increasingly expecting intelligent behavior from automated building systems. However, incorporating and integrating user preferences in an automatic control algorithm is a complex task. In most commercial systems, control is done through local search techniques ...
Abstract: Satellite-based positioning is becoming the prevalent solution for positioning and alignment of drill holes in open pit mines, quarries and construction sites. This is due to the accuracy and convenience of the systems, leading to improved blasting ...
Abstract: The thermal crack occurrence from hydration heat is one of the most important factors that significantly affect structural quality and construction period in mass concrete. Therefore, appropriate methods to control the thermal crack are necessary for mass concrete. In this study, the probability of thermal cracking was checked by FEM ...
Abstract: Tunnel construction method using a tunnel boring machine (TBM) is commonly adopted for building underground infrastructure, such as railways, roads, sewers, or utility pipelines. TBM tunnelling entails precise guidance of the machine in the underground space, as well as effective construction management and project control. The research aims to address ...
Abstract: This paper presents a systemic Bayesian network (BN) based approach for dynamic risk assessment for adjacent buildings in tunnel construction. This approach consists of four steps in detail, namely, hazard analysis, BN learning and BN-based risk analysis. In the dynamic risk analysis framework, the predictive, sensitivity and diagnostic analysis techniques ...
Abstract: This paper addresses the problem of nonlinear discrete-time flatness-based controller design for a Permanent Magnet-Excited Synchronous Motor (PMSM). To eliminate the static errors of the system state variables and consider the nonlinear characteristics of a PMSM, a cascaded flatnessbased control scheme is proposed. Simulation results are provided to illustrate the ...
Abstract: Few robots are found on the worksite today and the construction process has remained unchanged since pre-industrial times, the only major advancement being the replacement of human and animal power with motors, despite research efforts in construction automation. Contrarily, the planning stages of projects have benefited from advances in simulation ...
Abstract: In modern dynamic construction fields, more attention has been paid on safely operating heavy construction equipment such as cranes, excavators, and concrete pump. In order to improve the safety in complicated jobsites, it is highly required to provide heavy equipment operators with accurate measurement of on-site objects in near real ...
Abstract: The paper deals with the use of biological life support systems, initially created for long-duration space flights [1, 2], for the solution of problems with the sustainability of metropolitan cities, which must meet the requirements of decrease of environmental load. Motivated by applications in issues of design of water purification ...
Abstract: Open-sea ship-to-ship transfer operation is an alternative way to avoid port congestion. This process involves a relatively small vessel which transports containers between the harbour and a large cargo ship equipped with a container crane. However, the presence of disturbances and uncertainties caused by harsh open-sea conditions can produce an ...
Abstract: In modern days, there has been an increasing trend to build high-rise buildings. Until now, the methods to maintain building wall have relied on human efforts. However, there exist dangers and difficulties caused by height of buildings. Due to this problem, the need for system that can maintain building wall ...
Abstract: Unlike robotics in the manufacturing industry, on-site construction robotics has to consider and address two unique challenges: 1) the rugged, evolving, and unstructured environment of typical work sites; 2) the reversed spatial relationship between the product and the manipulator, i.e. the manipulator has to travel to and localize itself at ...
Abstract: Automated dynamic management of road construction sites has been studied within the DigiINFRA research project in Finland. A review of currently available commercial solution, including most popular commercial softwares and systems in global markets (Topcon Sitelink3D, Trimble applications, Novatron Xsite, Leica iCONTelematics, Infrakit), is drawn. Test results of the last ...
Abstract: Magnetorheological elastomer (MRE) base isolator is a new semi-active control device that has recently acquired more attention. This paper proposes a new model for MRE base isolator to portray the nonlinear hysteresis between generated force and the displacement. In this model, a hyperbolic expression is proposed to compare with the ...
Abstract: This study focuses on the development of a lightweight building information management (BIM) shape format (LBSF) structure to represent largevolume BIM geometry objects using the geographical information system (GIS) with building facility management. Recently, BIM-based facility management with GIS has been researched with regard to urban facility management. To implement ...
Abstract: Recently, Building Information Modeling (BIM) technology has attracted much attention in the Architecture, Engineering, and Construction (AEC) industry. Despite the growing interest in BIM technology, the benefits of BIM have not yet been fully realized during the course of implementation of BIM because of its low adoption rate among architects. ...
Abstract: This paper describes a BIM-enabled spatial analysis approach that enables us to compute specific quantitative data using BERA (Building Environment Rule and Analysis) Language and its tool. By comparing design alternatives for an actual building model, this paper also demonstrates building circulation and its associated properties of numeric data. The ...
Abstract: This research aims to develop a graph-based representation of building circulation as an extended version of the metric graph structure named UCN (Universal Circulation Network). There are several different methods and algorithms to represent pedestrians indoor circulation for architectural purposes. The UCN has introduced a BIM-enabled approach to measure walking ...
Abstract: This paper aims to develop a mechanism for visualizing indoor environment data set sensed by diverse sensors. The focus of this research is the development of an integrated visualization process using accumulated data from sensors, rather than the qualitative analysis of indoor environment. In this regard, we use a test-purposed ...
Abstract: Previous studies on automated fire-egress guidance systems have focused on providing the shortest path information from a specific person at a certain point to the closest exit mostly using a mobile device. This study aims to develop a Smart Exit Sign system that can detect dangerous areas in real time ...
Abstract: Single-households, one of the new housing types to emerge recently, seem to experience difficulties in the management of energy use due to the short duration of their residence. However, there has been little study on effective energy management in singlehouseholds. If we can find solutions that reduce energy consumption through ...
Abstract: The solution often suggested to mitigate poor time, cost and quality in construction is to produce buildings in an automated and industrialised environment. To date, use of Off-Site Manufacturing (OSM) in Australia has enjoyed extremely limited success. Distilling the variables in the success and failure of OSM in other places ...
Abstract: In this study, we developed a computation-al fluid dynamics (CFD)-based method to optimize the arrangement of buildings for urban ventilation potential at the conceptual design stage and demonstrated its application in a case study. For CFD-based optimization, three calculation components must be assembled: an optimizer, a geometry/mesh generator, and CFD ...
Abstract: In recent years off-site construction has become popular in North America due to the superior quality of the product, improved productivity, and reduced environmental impact. The panelized construction approach is one of the most readily utilized off-site construction methods. In a wood-frame panelized construction plant, wall panels are customized according ...
Abstract: Modular-based heavy construction projects are recognized as faster, safer, and more efficient than traditional those completed through on-site construction methods. The successful completion of these projects relies on an efficient material handling system, especially when mobile cranes are utilized to satisfy heavy lift requirements. However, engineers are faced with the ...
Abstract: The modular construction manufacturing (MCM) process is a complex operation that combines line flow product movement with a complex activity precedence network. There are physical constraints related to the given facility, as well as logical constraints caused by demand variation. In order to change production line layout and make improvements ...
Abstract: In port container terminals, reducing vessel turnaround time improves the terminal productivity and increases the capacity of world trades across the globe. This time reduction can be achieved by improving one or more container terminal major resources. Much research has been done on improving container terminal efficiency as a means ...
Abstract: With the increasing popularity of Building Information Modeling (BIM), several research studies have focused on its application in the construction industry, and advancements such as developments of BIM-based tools for construction scheduling and cost estimating have been carried out. Nevertheless, these tools are each developed only for one particular aspect ...
Abstract: Productivity is critical to large and complex capital projects in sectors like infrastructure and resources. It normally relates to a significant scheduling issue when pursuing both time and cost objectives. A poor planning of project schedule might incur both excessive labour cost and project delay. Looking at scaffolding activity, a ...
Abstract: Cost estimation is economically critical before starting off a construction project. One of the essential assignments for materials prices prediction is to control the cost of inventory. Even though the prediction system based on support vector machine (SVM) recently has been emerged as a favourable choice, the prediction accuracy of ...
Abstract: A timely progress monitoring is essential for the success of a large-scale construction project. It enables a site manager to properly prepare resources and make plans for the remaining part of the construction activities. Recently, mobile computing and image processing have been investigated as a means of automating progress monitoring. ...
Abstract: The theme of this contribution fits astride two strands of Construction Management Studies: health and safety risk management on construction site and constructability design approach. Specifically we faces two problems usually considered separately: the lack of specificity, synergy, effectiveness between safety planning and construction process and the lack of concurrence ...
Abstract: Tower crane layout design and planning within construction site is a common construction technical issue and regarded as a complex combinatorial problem. To transport heavy materials, such as rebar, formwork, scaffolding, equipment and steel, tower cranes are needed and should be well located to reduce construction cost and improve safety ...
Abstract: While comprehensive and ongoing competitive intelligence (CI) is employed in a variety of industries to provide valuable input for broad strategic decisions, the construction industry lags behind in adopting this technique. This paper presents a CI model for use in the construction contractor selection process, which is a critical element ...
Abstract: This paper develops a systematic approach with detailed step-by-step procedures for safety management of existing buildings adjacent to tunneling excavation. The potential safety risk of a specific nearby building is assessed within four different risk levels, with the spatial neighbor relation (hazard parameter) and the building health condition (vulnerability component) ...
Abstract: The construction industry is multi-disciplinary and collaborative in nature. Project managers are expected to understand the relations, roles and responsibilities in this collaborative working environment. Construction project managers need to be equipped with skills to process and understand the principles of interdisciplinary working. In order to keep pace with industry ...
Abstract: The construction industry in the world is considered to be one of the most dangerous industries, claiming each year the lives of many workers. In particular, the boom in the construction industry in the Middle East over the past decades was accompanied with significant increase in death tolls and injuries ...
Abstract: Several factors have contributed to the growth of BIM usage in the global construction industry, including availability of appropriate software and hardware tools, the opportunity to minimize errors, waste & cost and increasingly competitive markets [1][2]. An emerging approach in the construction industry is the use of 5D-BIM, by combining ...
Abstract: For the past thirty years, Lebanon has been experiencing cuts in electricity, thus compelled to import it and use noisy and extremely unhealthy generators. This happened at very high prices with even mediocre quality. Hence, an adequate solution to this shortage in electricity supply can be achieved through the use ...
Abstract: Successful implementation of construction projects depends on accurate cost estimation. Cost analysis of construction work items is essential to a cost estimating process for contractors. However, current cost analysis tasks cannot be implemented effectively in practices. Therefore, this study proposes an ontology-based representation framework that aims to address such practical ...
Abstract: The economic and environmental benefits achievable through concrete recycling depend on many parameters including, but not limited to, travelling distances between demolished building and concrete recycling plant and/or landfills, prices of natural and recycled aggregates and the desired quality of the recycled aggregates which itself depends on a number of ...
Abstract: The environmental and safety performance of construction sites are increasingly regarded as critical factors that need to be monitored for the successful completion of construction projects. Research has also repeatedly highlighted the need to minimise the carbon footprint of the construction process and enhance the capacity of the project team ...
Abstract: Efforts undertaken in identifying, analyzing and assessing project risks are only made good use of when proper risk treatment strategies are decided upon and pursued. Based on the criteria established by senior management, the risk management plan goes about defining how each risk is to be handled. There are options ...
Abstract: The uncertain environment in which construction projects are executed poses a challenge to project managers and planners alike as they go about planning and controlling these endeavours. Statistical and simulation models have been devised over the years to assist in estimating the time and cost of construction activities while accounting ...
Abstract: Mobile cranes are used to lift heavy modules in industrial projects. These heavy modules are often prefabricated and each project consists of a large number of lifts (e.g., a typical industrial project may have between 150 and 1000 modules to be lifted). To ensure the safety and efficiency of these ...
Abstract: Today several activities of a construction project can be supported with information technology tools. However, there have been many cases of technology adoption failure. Lack of understanding about the process of technology adoption is often pointed out as the reason. This paper is based on a study to explore BIM ...
Abstract: In the construction industry, many individual trades have to work simultaneously. This creates many potential difficulties on the construction site, primarily in relation to efficiency loss and construction period extension. To improve efficiency, a new interior finishing system for dwelling was developed. By using the system, both interior finishing and ...
Abstract: An important set of information provided through Building Information Modeling (BIM) platforms are quantitative properties of design elements and assemblies. The capability to extract or deduce such quantitative properties from explicit and implicit model information is essential for bidding, procurement, production planning, and cost control activities in the AEC projects. ...
Abstract: Bridge construction projects are inherently complex and iterative, and these place great demands on project management to apply innovative approaches for more comprehensive analysis of performance data under uncertain conditions. Although new technological-based methods such as simulation have proven to be powerful techniques to cope with cyclic and uncertain project ...
Abstract: Construction site layout planning (CSLP) is recognized as a crucial component of construction management. The objective of CSLP is to determine the best arrangement of temporary facilities on a construction site, which would minimize the transportation distance of site personnel and equipment. It could be achieved by creating dynamic layout ...
Abstract: As for forest harvesting in Japan, machine operators have to handle their own forest machines on forest road with steep slope in the deep mountains. One common hazard that they are always facing is machine stability under different ground conditions. This paper presents the contrivances to provide the people concerned ...
Abstract: The use of logistics milestones, as predecessors for construction works, is gaining popularity to improve the control over the material procurement stage and minimize the risks of delay in the project completion resulting from late material deliveries. Transportation is an important phase in the procurement process which can account for ...
Abstract: The recent increase in the number of irregularly shaped tall building has caused a continuous increase in the formwork costs. To reduce the cost of forms, modular forms are widely used since they are cheap and reusable. However, they cannot be applied around columns which are irregularly arranged. This study ...
Abstract: Advocates of BIM have the ambition of making it a central tool for information management and collaboration among stakeholders on construction projects. Even so, its implementation is often difficult for small construction contracting businesses, albeit that they make up such a large proportion of the construction industry. This paper uses ...
Abstract: The objective of this study is to explore an optimal strategy on energy consumption for a direct expansion (DX) air-conditioning system by using a refrigerant pump in the liquid line to allow the system to operate at a lower condensing pressure. An existing DX rooftop package of a commercial building ...
Abstract: This study discusses the construction and demolition waste recycling stream both in Australia and in Germany. Differences and commonalities in commercial practices between the two countries are outlined, and open research questions are introduced. Following McDonough and Braungarts cradle-to-cradle theorem, and ideal closed-loop system within the building life cycle is ...
Abstract: Building Energy Management Systems consist of hardware and software components. The hardware set-up of BEMS is typically made up of a set of computers in charge of building control and sensoractuator networks. The software side of BEMS is usually made up of a number of functional layers that implement standard ...
Abstract: The energy demand of applications using inverter controlled electrical servo drives is considerably dependent on the applied trajectory profiles. In this paper, the improvement potential in supply energy consumption is analyzed with respect to the standard servo controller functionality. The optimal choice of trajectory profiles and execution times for point-to-point ...
Abstract: This comparative study between German and Australian legislation demonstrates that legal frameworks impact on the way in which recycling systems work. Both Australia and Germany operate as Federations and the autonomy of states influences common federation wide practices and standards. In Germanys case however, it is obliged to comply with ...
Abstract: This paper presents a method to predict energy usage, based on weather conditions and occupancy, using a multiple linear regression model (MLR) in research office buildings. In this study, linear regression models of four research office sites in different regions of New Zealand were selected to show the capability of ...
Abstract: Work in masonry is divided in different tasks and performed by sub-contractors. Sub-contractors specialize in a given skill to accomplish a specific construction task and usually work with crews. Due to this specialization, multiple crews with different skills are present on the jobsite at any one time and the sub-contractor ...
Abstract: From mid-October 2013 to the beginning of November 2013, New South Wales (NSW) experienced a significant sustained bushfire spring period in the Blue Mountains, the Central Coast and the Southern Highland causing property damages in those areas, and high pollution (particle and ozone) episodes over the metropolitan areas of Sydney. ...
Abstract: Recent studies have focused on increasing energy efficiency in commercial buildings through technological means (e.g., efficient HVAC systems, sensors and sensing systems). However, most studies underestimate the impact of occupants behavioural choices. Lighting systems account for approximately a fifth of the total electricity consumption in the US; commercial buildings account ...
Abstract: In the situation of energy deficiency, the management of the economical and efficient power utilization plays an important role in the national energy policies and has been considered as an essential requirement for the coal production enterprises, especially in the underground ones. The report represents the features of the ...
Abstract: Hospitals consume large amounts of energy due to its operation characteristic. The HVAC system designed in hospital buildings runs 24 hours and has special air requirements. This study aims to evaluate the energy-saving efficiency of HVAC system by studying two Taiwans green hospital buildings. Results show 40% energy saving efficiency ...
Abstract: Experience shows that ground vibration induced by high-speed trains can reach levels that cause environmental problems, such as human annoyance, possible damage to old and historical buildings, and interruption of sensitive instrumentation and processes. In engineering, understanding the characteristics of the vibration source, path, and influence distance on various influence ...
Abstract: Among alternative energy sources for residential buildings, algae technology has emerged as a promising option due to its closed-loop configuration and the ability to produce biofuel energy while reducing waste stream flow and capturing carbon. Furthermore, this technology has the potential of integrating resource and waste management, and can be ...
Abstract: Motor vehicles rate models for predicting emissions of oxides of nitrogen (NOX) are insensitive to their modes of operation such as cruise, acceleration, deceleration and idle, because these models are usually based on the average trip speed. This study demonstrates the feasibility of using other variables such as vehicle speed, ...
Abstract: In recent years, the construction industry has been actively seeking for possible applications of Building Information Modeling (BIM), including the domain of building disaster-prevention management. BIM enables us to present a facility layout in threedimension (3D) and carry the disaster-prevention objects and information whereas the traditional approach can only be ...
Abstract: In the underground mining and tunnelling rock excavation processes, there is plethora of different machine, tool and information system providers involved and practically no general information model covering the complete process. The competition in the field is getting more intense and all the actors should intensify their operations. The information ...
Abstract: While web-based project management systems are widely being implemented in most construction projects, there is a clear lack of understanding among the industry professional in relation to any quantified benefit and achieving success in projects. The aim of this research is to unfold the understanding of the key factors affecting ...
Abstract: This study applied integrated indoor positioning and augmented reality (AR) technologies to develop an on-site viewing model of BIM. In the proposed model, BIM information is displayed and superimposed on real building elements in 3D component models or surrounding texts using AR technology. The building must have a wireless network ...
Abstract: Ready-made building components and joining systems are generally unfit for existing building structures with irregular shapes. Therefore, unplanned and immediate manual work is dominantly practiced as measuring and manufacturing of the customized joining system is not supported. In this respect, by obtaining 3-D shapes of the existing building components and ...
Abstract: This paper deals with the adaption of construction schedule due to real-time data. This real-time data needs to be evaluated regarding the effects on the schedule. If significant delays or other problems are identified, the schedule should be adapted. That means that under the existing condition a new schedule needs ...
Abstract: Internal defects of pipelines are among the main factors causing accidents in the production phase of industrial plants. Periodic monitoring of a pipelines inner surface condition is of great importance for minimizing the risk of failure of industrial plants. This study proposes a sensor fusion approach to detect internal defects ...
Abstract: There is a great difficulty for students or faculty to commercialize their novel idea or invention from the university laboratory. Traditionally, university research has not been intended for commercializing while still within the university. However, recent trends create a paradigm shift for researchers to include a business mind-set to establish ...
Abstract: Recent studies on automated activity analysis have adopted construction videos as an input data source to recognize and categorize construction workers actions. To ensure the representativeness of its analysis results, these videos have to be gathered randomly in terms of time and location. In doing so, such videos must be ...
Abstract: Bridges are a vital and significant component of Taiwans transportation infrastructure. Therefore, regular and comprehensive inspections of existing bridges are necessary to prevent damage and traffic disruption and reduce earthquake-related damage and casualties. However, due to the large number of bridges in Taiwan, the time and budget required to perform ...
Abstract: Development of the schedule control of precast concrete supply chain has been studied. Main idea was to use BIM model created by structural engineer as a user-interface for schedule control, for saving different status information of the real-time schedule situation of the propagation of structural design, element manufacture, delivery and ...
Abstract: The present development situation of 3D and BIM based process model for tunnel design and construction methods has been studied. Tunnel design is generally done using traditional 2D drawing based working methods. As a basement for the research, the new specifications developed in Finland for national BIM requirements for infra ...
Abstract: A three-dimensional (3D) laser scanner is one of the most well known devices when it comes to creating a 3D model of existing bridges and buildings. Most 3D scanners can pick up point clouds very accurately, which can be used to create an accurate 3D model of existing objects. One ...
Abstract: Large scale dispatching problems are technically characterized as classical NP-hard problems which means that they cannot be solved optimally with existing methods in a polynomial time. Benders decomposition is recommended for solving large scale Mixed Integer Programming (MIP). In this paper we use the Bender Decomposition technique for reformulating the ...
Abstract: Classification Tree (CT) can establish explicit classification rules of Satellite Imagery (SI). However, the accuracy of explicit classification rules are poor. Back-Propagation Networks (BPN) and Support Vector Machine (SVM) both can establish a highly accurate model to predict the classification of SI but cannot generate the explicit rules. This study ...
Abstract: Machine control systems generate huge amounts of data to be used to build smarter. This information is still not widely used as there are no general methods to access this massive spread of data as these are strictly closed systems. Main tools in our study were an open source 3D ...
Abstract: Background: Information Technology (IT) has reached a level of maturity, where IT can really meet the complexity of the construction industry. IT has reached the ability to support construction not just any more in the facilitating processes as financial services and human resources management (HR), but also to play a ...
Abstract: The collection of as-built data for construction progress monitoring remains challenging. This paper develops two case studies on image-based modeling, in which point cloud models are created based on the photo collection of the construction site. The first case considers 399 unordered construction images previously taken for purposes other than ...
Abstract: Estimation of the carbon emissions in the construction phase of the building life cycle requires acquiring and analysing a great deal of project specific data including the amount of the works performed by different equipment and the unit emissions of various machinery at different work conditions. Such information are very ...
Abstract: Activities undertaken on a construction site are often accompanied with high levels of noise. Addressing the issue of noise pollution in construction is gaining significance with the growing awareness about the social and environmental components of sustainable construction and the increasing numbers of projects being undertaken in congested urban areas. ...
Abstract: A new LMS algorithm with a variable step-size and its application to improve the quality of broadcast-telephone system use in underground coal mines is presented in this paper. The step-size of the proposed algorithm is proportional to not only the norm of the smoothed gradient vector but also the smoothed ...
Abstract: The objective of this research is to develop, optimize and evaluate an approach for automatically generating rigging path guidance in order to provide sufficient assistance on the user interface of tele-operated crane. Besides operational safety and efficiency, this approach focuses on solving operability issues of following path guidance on a ...
Abstract: Aging infrastructure in the US has gained quite a bit of attention in the past decade. Being one type of a critical infrastructure, embankment dams in the US require significant investment to upgrade the deteriorated parts. Due to limited budgets, understanding the behavior of structures over time through risk assessment ...
Abstract: Picks are critical components in excavation machines used in civil and mining industries. Any failures of picks in an excavator directly affect the reliability and productivity of the machine. Pick tip wear, pick tip crack, pick body wear and pick body bending are common failure modes of picks in production. ...
Abstract: Unmanned aerial vehicles are specialized robots. Recently they were used in many civil applications such as patrolling, firefighting, rescuing tasks and being the shadow cinematographer in many movie-making companies. The new developments in material technology led to new sophisticated, miniature range of sensors and actuators, which are able to substitute ...
Abstract: Background. Improvement of quality, decrease of terms and cost of construction are inseparably linked with problems of effective use of bulldozer equipment. Purpose. The most important problem of control tractions modes of the bulldozer is the fullest use of traction opportunities of the machine at the expense of management of ...
Abstract: Last decade saw a considerable growth in number of methods to create 3D models for buildings. Some companies have developed their own online maps systems. One of the most well-known of them is Google Maps. The maps are infrequently updated because the process is costly and labor-consuming, and, as a ...
Abstract: Mobile robots with omni-directional wheels can generate instant omni-directional motion including lateral motion without any extra space for changing the direction of the body. So, they are capable of traveling in every direction under any orientation to approach their destinations even in narrow aisles or tight areas. Especially, if a ...
Abstract: In this paper, we propose a cooperative control method of a single-user multi-robot (SUMR) teleoperated system for maintenance in offshore plants that is designed to perform in a 1:N mode (here, 1 refers to the number of user, and N denotes the number of slave robots), in which a single ...
Abstract: Ageing society and individuals with disabilities faces numerous challenges in performing simple tasks in Activities of Daily Living (ADLs), [1]. ADLs represent the everyday tasks people usually need to be able to independently accomplish. Nowadays caring of elderly people becomes more and more important. Performance of ADLs in the long ...
Abstract: Emerging wireless sensor networks (WSN) technology offers a great potential in supporting current project management practices. Deploying wireless sensor networks on construction sites can lead to significant time and cost savings by providing accurate and near-real time data to project management personnel. Continuous monitoring of labor usage, materials placement and ...
Abstract: Developments of Terrestrial Laser Scanning (TLS) and Building Information Modeling (BIM) offer great opportunities to achieve a leap forward in the efficiency and completeness of dimensional control operations. This paper presents an approach that demonstrates the value of this integration for slab flatness control. The approach first employs the Scan-vs-BIM ...
Abstract: Mobile robots in automation construction have been designed for applications of craning, conveying, excavating, and floor polishing. These robots nowadays are equipped with various sensors to detect environmental information and finish tasks autonomously. When robots navigating path needs to be rescheduled, the supervisor of robot can duly interrupt system and ...
Abstract: Fine particle emissions (PM10) from demolition and construction activities are now recognized as significant causes of pollution. So they can cause health hazards both to workers and to people living and working outside the sites boundary in the local neighbourhood. Although admissible concentration values are defined by national legislation and ...
Abstract: Microtunneling is a trenchless construction method that is highly adequate to install pipelines beneath roads, rail roads, dams, harbours and environmentally sensitive areas. Microtunneling could be understood as a remotely-controlled, guidance operation of a MicroTunneling Boring Machine (MTBM), where references are provided by a human operator from the surface. A ...
Abstract: One of the most prohibiting factors when attempting to reuse structural steel members or systems of members is the time and labour required to accurately determine dimensions. Current practices dictate that all required measurements are recorded by hand using tape measures and calipers which adds a significant cost to reused ...
Abstract: In the construction industry, fall accidents are the leading cause of construction-related fatalities; in particular, ironworkers have the highest risk of fatal accidents. Detecting near-miss accidents for ironworkers provides crucial information for interrupting and preventing the precursors of fall accidents while simultaneously addressing the problem of sparse accident data for ...
Abstract: Localization (position tracking) inside tunnels is difficult. GPS signal is not available inside tunnels, and installation of wireless access points is expensive. In this work, we propose the use machine vision for localization in tunnels. The advantage for such approach is that it requires no installation of any infrastructure, needed ...
Abstract: The tenet of TQM is the use of measurements to monitor an operation in order to avoid poor quality outputs. The construction faces unique barriers to utilize effective technologies to capture critical process data in real time. This paper presents the results of extensive field testing of wireless systems to ...
Abstract: Recently it is observed that there is an increasing trend of using lidar point clouds in construction, since lidar is able to provide highly accurate 3- dimensional representations of objects. The flip side of a lidar point cloud is its massive size and therefore prolonged time for data processing. Our ...
Abstract: Developing measurement tools to assess urban sustainability is one of the new streams in built environment; however, automated methods of urban form assessment are technically difficult. While planar characteristics of urban forms have been studied traditionally using the spatial metrics from remote sensing data such as Landsat images, height information ...
Abstract: Human detection is an important topic that can be used for many applications, it is mainly found in areas that required surveillance such as airports, casinos, factories, construction and mining sites. In this paper, a novel human detection method is introduced to extract the human figure from an input image ...
Abstract: Classification of lidar data to ground and nonground points is important for accurate topography mapping and reliable estimation of slope, volume and buildings geometry over urban areas. Manual or semi-automatic classification provides relatively good results, however, automatic classification in complex areas with diverse object sizes is still challenging. This research ...
Abstract: Capital projects are the backbones of our society and they must go through an evolutionary process of repeated planning and analysis cycles. Ensuring a building is structurally sound, or that a tallest building will add a new image to a city is not enough: new infrastructure and urban development must ...
Abstract: In the last few decades, climatic changes have become very important issue to investigate when dealing with sustainable structures. This paper presents the challenges made by the Bedouin residence of Siwa oasis in Egypt through the case study of three vernacular buildings, in order to identify the best practice and ...
Abstract: An optimum selection of construction company suppliers is one of the most important processes of the top management. The most of construction processes are realised by many suppliers all over the world and during the process of construction planning it is necessary to find an optimum solution which would cover ...
Abstract: Accurate estimates of the state-of-health (SOH) for rechargeable batteries provide a significant value to the management of any operation involving electrical systems. This is especially important for transportation systems, where unexpected battery performance may lead to catastrophic failures. This paper performs experiments aiming at analyzing Lithium-ion battery performances with aging ...
Abstract: Installation work of large inner/outer wall panel glasses increases the labor load and stress of workers and causes the danger of such accidents as falling and crane overturning. To solve this problem, Gil designed the easy handling robot system which is composed of mobile system, 5-DOF manipulator system and HRI ...
Abstract: Knowledge Management (KM) is a business management technique that promises improved competitive advantage among other benefits for an organization. The application of KM in construction is fairly researched and reported. Although Building Information Modeling (BIM) is gaining wide acceptance among Architects and Project Managers for efficient and effective design and ...
Abstract: Climate change, along with the increase of severe weathers and natural disasters, is becoming an important factor to consider for infrastructure investments. To adapt infrastructure to the effects of climate change, new design, construction, or rehabilitation methods so-called adaptation methods can be deployed. However, it is crucial to ...
Abstract: Development of building information modelling for dredging process has been studied. In dredging area different 3-D guidance and control systems have been used already over 15 years. However, the information transfer process from early initial data acquirement phase through design and further to construction phase has suffered from information delivery ...
Abstract: In underground mines and tunnels accurate and continuous positioning of moving machines and humans has been studied extensively. Geomagnetic field based positioning is an interesting possibility for this measurement need. Using a commercial smart phone and a new calculation service provided by a Finnish company, a feasibility and accuracy assertion ...
Abstract: The present study highlight the methods used to monitor the geotechnical behaviour and performance of the cavern during excavation in order to verify and, if necessary, adjust the rock support to ensure safe construction at every stage. The present geotechnical monitoring practice for underground structures involve convergence monitoring with the ...
Abstract: The building materials and structural form chosen in design phase not only affect the costs for construction, but also decide the costs for maintenance. However, the large amounts of maintenance costs are not easy to estimate. This article proposes a decision support model adopting life cycle assessment to assist the ...
Abstract: For the past few years, numerous super high-rise buildings have been built around the world. Among them, movement management of materials and labors is closely related to productivity of super-high rise construction. The objective of this study is to develop an algorithm which can increase productivity of lift operation on ...
Abstract: Currently, a new construction method using a robotic system is widely spreading in construction sites. This study is related to introduction of humanrobot cooperation technology which can improve convenience and productivity through the efficient interaction between a worker and a robotic system while doing glass panel installation works. Based on ...
Abstract: Excavators play an important role at construction sites owing to high application and economic advantages, but the number of skilled operators of the excavator decreased because young operators do not like to enter to construction business. Research on automation of excavator and earthwork equipment was actively done such as IES ...
Abstract: Mechanized earthworks for post-disaster reconstruction largely forks into unmanned construction at hazardous working sites and manned one at less hazardous sites. In order to avoid secondary disasters, it is significant and required to compensate operators realistic sensation in order to enhance spatial awareness in the mechanized earthworks. The mechanized earthworks ...
Abstract: Implementing Information technology (IT) in a system presents varied responses. Prior research models in IT adoption examine dimensions not limited to attitude, subjective norm, ease of use, usefulness, innovation including several moderating variables. Despite consistent blueprints on leverage on IT in the Malaysian construction industry master plan, the exponential growth ...