Showing papers in "Automation in Construction in 2012"

TL;DR: In this paper, the authors discuss large-scale additive manufacturing processes that have been applied in the construction and architecture arena and focus on concrete printing, an automated extrusion based process.

TL;DR: In this article, the authors developed a more complete methodology to analyze the benefits of BIM, apply recent projects to this methodology to quantify outcomes, resulting in a more a holistic framework of building information model and its impacts on project efficiency.

TL;DR: In this article, a multi-agent comfort and energy system (MACES) is proposed to model alternative management and control of building systems and occupants using multi-objective Markov Decision Problems (MDP).

TL;DR: A novel system is described herein that combines 3D object recognition technology with schedule information into a combined 4D object oriented progress tracking system that demonstrates a degree of accuracy for automated progress tracking that meets or exceeds typical manual performance.

TL;DR: In this paper, an occupancy detection system is proposed to support demand-driven HVAC operations by detecting and tracking multiple stationary and mobile occupants in multiple spaces simultaneously, and the proposed system estimates the thermal zone where each occupant is located, and reports the number of occupants for each thermal zone in real time.

TL;DR: The proposed model is not to introduce a new schema in contrast to IFC but to harness the capability of IFC XML and or possibly engage with using Simplified Markup Language (SML) subsets of eXtensible Mark up Language (XML) for exchanging partial data to design an integrated platform that would enhance the BIM usability experience for various disciplines in making key design decisions at a relatively early design stage.

TL;DR: This paper describes the implementation of two BIM based tools, the first to support the activities at an estimating department of a construction company and the second, to support risk management activities on a large infrastructure project, to illustrate that it is possible to implement BIMbased tools in construction organizations in a "technology pull" manner.

TL;DR: In this article, a review explores relationships between construction safety and digital design practices with the aim of fostering and directing further research, and suggests new kinds of interventions, such as the development of tools and processes for using digital models to promote mindfulness through multi-party collaboration on safety.

TL;DR: In this article, the advantages and limitations of using photogrammetric image processing to document and verify actual as-built conditions are investigated, and the potential of the image-based spatial data is assessed for accurately generating 3D models.

TL;DR: The proposed method exploits motion, shape, and color cues to narrow down the detection regions to moving objects, people, and finally construction workers, respectively, and demonstrates its suitability for automatic initialization of vision trackers.

TL;DR: A vision-based crack detection methodology is introduced that extracts the whole crack from its background, where the regular edge-based approaches just segment the crack edges, appropriate for the development of a crack thickness quantification system.

TL;DR: The wireless sensor network-based bridge health monitoring system proposed herein is developed in the form of an application that is intended to ensure universal applicability and designed to maximize the ease of wireless Sensor network.

TL;DR: This study found that user satisfaction was an important indicator of adoption of the intent to adopt mobile computing devices in the construction industry and determinants of perceived usefulness, such as social influence, job relevance, and top management support, and determinant of perceived ease of use are critical factors that influence the successful implementation of mobile computing device in theConstruction industry.

TL;DR: In this paper, a multi-attribute based tool is proposed to evaluate the functionality, economics and performance of buildings concurrently with building design in early design stages, which can be extended to other dimensions such as carbon estimates and waste estimation.

TL;DR: Results show that this technology in its present state is not suitable for modeling infrastructure projects, however technological developments can enable this to be an efficient way to extract measurements of inaccessible objects for progress monitoring purposes and the models can also be stored for future dimension takeoffs for decision making and asset management purposes.

TL;DR: In this paper, the authors investigate factors that influence the successful implementation of a Web-based training system in the construction industry and provide insight into acceptance of WBT on the part of professionals.

TL;DR: In this article, the authors present a systematic prequalification procedure based on Fuzzy Set Theory, whose main differences and advantages in comparison with other models are the use of an algorithm to handle the inconsistencies in the fuzzy preference relation when pair-wise comparison judgements are used and the use either linguistic assessment or exact assessment of performance of the contractors on qualitative or quantitative criterion, respectively.

TL;DR: An object recognition system based on mixture of appearances of deformable body parts of the hydraulic excavator is described and its results with general Histogram of Oriented Gradient detectors in both images and videos are compared.

TL;DR: An ontology-based semantic modeling approach of regulation constraints is explored to give more computerized support to the construction quality compliance checking against regulations, and a meta model for construction quality inspection and evaluation i.e. CQIEOntology is proposed.

TL;DR: In this paper, the authors empirically investigated a sample of capital facility projects in the construction industry and found that levels of IT application are positively associated with projects' levels of knowledge management.

TL;DR: A new safety assessment method, termed the 4D Interactive Safety Assessment, is described which offers an improvement and involves individual construction workers being presented with 4D virtual risky scenarios concerning their project and a range of possible actions for selection.

TL;DR: A newly developed tower crane navigation system that provides three-dimensional information about the building and surroundings and the position of the lifted object in real time using various sensors and a building information modeling (BIM) model is introduced.

TL;DR: The platform's middleware has been developed into an operative, advanced prototype, providing information to a Web-based client that integrates and interfaces with the Google Earth and Google Maps plug-ins for geospatially referenced energy usage visualization and monitoring.

TL;DR: A validated ASP-PMIS success model based on the DeLone and McLean (2003) IS success model can serve as a foundation for positioning and comparing PMIS success research, and can provide users with a useful framework for evaluating PMISsuccess.

TL;DR: In this article, the authors demonstrate results to the design, development, and furthermore and mainly, the effective and affordable implementation of a state-of-the-art wireless passive RFID-based technology system that collects and distributes information from and to decision makers.

TL;DR: A fuzzy random multi-objective particle swarm optimization algorithm (MOPSO) with permutation-based representation is proposed to solve the problem and is applied to the Longtan hydropower construction project to illustrate the effectiveness of the proposed model and algorithm.

TL;DR: The capability of the proposed real-time simulation to dynamically incorporate new project data and adapt to changes in field operations can improve the accuracy of project look-ahead scheduling.

TL;DR: Validation results show that the EFSIMT achieves higher performance in comparison with Support Vector Machines and obtains results comparable with Back-Propagation Neural Network (BPN) and offers strong potential as a valuable predictive tool for HPC compressive strength.

TL;DR: A Building Information Modeling-based user activity simulation and evaluation method (UASEM), which assists users to specify their activities in new buildings and simulates these activities based on the building information models, which has potential to improve users’ understanding of the design solutions.

TL;DR: In this paper, a case study of the use of building information modeling (BIM) in "design validation" based on the avoidance costs of rework due to design errors is presented.