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Youyi Feng, Fei Dai and Jiaqing Zhao

Comparing Feature Matching Algorithms for Measuring In-Plane Strains on Civil Infrastructures

Abstract: Maintaining structural integrity of civil infrastructures such as bridges and tunnels is always an essential task for civil engineers. Collapse or damage of these infrastructures may lead to a tremendous amount of painful injuries, casualties, and societal losses. This paper reported the work on evaluating optimal feature matching algorithms for development of visual sensing-based techniques to measure in-plane deflections and strains in order to facilitate monitoring and evaluation of integrity of civil infrastructures in a cost-effective way. A series of experiments were conducted in which three algorithms Digital Image Correlation (DIC), Scale-Invariant Feature Transform (SIFT) and Speeded-Up Robust Features (SURF) were compared. The result indicated that DIC has superiority among the three algorithms. To further assess the accuracy of DIC, a high-speed industrial camera was then used to capture a series of continuous image frames of deformed real-world scenarios. The DIC algorithm was adopted in the feature detection and tracking process, and in-plane displacement and strains were calculated and compared with the ground truth. The result indicated that the DIC-based method can achieve highly accurate performance in measuring in-plane deflections and strains for civil infrastructures and holds potential to the development of visual sensing enabled structural health monitoring.

Keywords: Image-Based Methods, Structural Health Monitoring, Visual Sensing, Non-Contact Measurements, Comparative Study

DOI: https://doi.org/10.24928/JC3-2017/0165

Full text: content.pdf (970,277 bytes) (available to registered users only)

Series: jc3:2017 (browse)
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Z Liu, M Osmani, P Demian, A N Baldwin

The potential use of BIM to aid construction waste minimisation

Abstract: It is widely acknowledged that the construction industry has a major impact on the environment, both in terms of resource consumption and waste production. The construction industry is responsible for producing a whole variety of different onsite wastes; the amount and type of which depends on factors such as the stage of construction, type of construction work, direct or indirect stakeholders’ design change contribution, and practices throughout the project lifecycle. A number of construction waste minimisation (CWM) techniques and tools are currently available to assist contractors to divert waste away from landfill. However, literature reveals that there are insufficient techniques and tools for reducing construction waste during the design and procurement stages. The last few years saw the emergence of Building Information Modelling (BIM) techniques, which can be adopted to improve sustainable construction performance. BIM is a maturing modelling philosophy, which has been applied to several building-related functions such as visualising designs, automating quantity takeoffs, checking compliance with regulations, and scheduling construction processes. Furthermore, BIM, as a real-time interactive and collaborative communication system, has the potential to help project stakeholders to collaboratively attain waste minimisation for sustainable construction and building throughout design, construction and throughout the lifecycle by improving building construction performance. Hence, this paper, which is part of an ongoing doctoral study, explores the potential application of BIM to design out waste. An in-depth literature review was conducted to provide a foundation for the doctoral study that aims to investigate the use of BIM as a potential platform for building design waste minimisation. The paper explores construction waste origins and causes, current waste reduction practices; examines current industry BIM practices and investigates BIM tools for sustainable project construction and management; and identifies the knowledge gaps in existing literature that pave the way for the subsequent data collection stages.

Keywords: Environmental impact, Sustainable construction, Construction waste minimisation (CWM), Building Information Modelling (BIM), Designing out waste

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Full text: content.pdf (217,762 bytes) (available to registered users only)

Series: w78:2011 (browse)
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Z. Ren, L. Sha, T. M. Hassan

RFID facilitated construction material management - a case study of water supply project

Abstract: Due to the complex and dynamic nature of the construction industry, construction material management faces many unique challenges from material planning, ordering, receiving and storing, handling and distribution, site usage and monitoring (Johnston and Brennan 1996). Poor material management has been identified as a major source for low construction productivity, cost overrun and delay (Fearon 1973, Olomolaiye et al. 1998). Although many fac-tors contribute to the problems of material management, the lack of active, accurate and integrated information flow from material planning, inventory to site use and monitoring is the major contributor. However, it is difficult to obtain such accurate information actively due to the nature of the industry, particularly for large or material intensive projects such as oil or water pipe-laying projects. A Radio Frequency Identification system (RFID) facilitated construction ma-terial management system has been developed to tackle this problem. This latest technology helps the project team to collect material storage and usage in an active and accurate way, and further to facilitate the information flow through the construction material management process with focus on the dynamic material planning, ordering and monitoring. The developed system is being implemented in a water-supply project.

Keywords: RFID, construction, dynamic, material planning, monitoring

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Full text: content.pdf (863,009 bytes) (available to registered users only)

Series: w78:2007 (browse)
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Zarli A, Richaud O

Requirements and Technology Integration for IT-Based Business-Oriented Frameworks in Building and Construction

Abstract: Key challenges nowadays facing industry are increased competition, increased complexity and wider market reach, and in such a context, the information infrastructure of an enterprise determines its strengths and weaknesses. As a consequence, this infrastructure has become vital to enterprise competitiveness, though the diversity of enterprise databases and the heterogeneity of strategic applications are still a barrier to industrial exploitation of the opportunities offered by this infrastructure. Modern enterprise information systems must interoperate in Inter/Intranets and with the WEB in a quite interactive, reliable and secure way, and have to be flexible enough in order to quickly adapt to today's fast moving business environment. This paper first gives a synthesised investigation of the requirements for a standardised open infrastructure, relying on now available distributed objects systems, and integrating in a flexible way the enterprise business model through the emerging concept of Business Objects (BOs), that allows systems designers to put the stress on the business they model and no more the data they exploit. It then focuses on a specific part of the work undertaken in the context of the Esprit project, relying on the OMG Business Object Component Architecture (BOCA) proposed by the BODTF. This was finally not accepted by the OMG board. Nevertheless, at the time we started our work, this proposition was the only one meeting requirements for distributed business objects, and especially the Component Description Language (CDL) and its concepts: a short presentation is given of a CDL compiler that produces IDL, according to the BODTF recommendations for CORBA-based implementations, and Java code, on the basis of a framework we developed. The originality of this approach resides in the fact that it takes into account most of the needs when developing BOs and gives an automated implementation whenever possible. Hence, we automated the generation of factories, event typed dispatching, and relationship handling. This approach lets the BO developers concentrate on the business and relies on improved solution backed by design patterns. This research is regarded as a solid foundation for designers to set up information systems that are a better fit to business user requirements, and expected to be a major step towards the forecast delivery of WEB-oriented software components for the Building Construction and other sectors as well.

Keywords: distributed client/server architectures, communication middleware, business objects, CORBA, CDL, open and standardised industrial business objects frameworks.

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Full text: http://www.itcon.org/1999/4 (available to registered users only)

Series: itcon:1999 (browse)
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Zhiliang Ma and Zhe Liu

Ontology- and Freeware-Based Platform for Rapid Development of BIM Applications with Reasoning Support

Abstract: In the Architecture, Engineering and Construction (AEC) area, a remarkable tendency is to use the Building Information Modeling (BIM) data to carry out analysis and calculation based on rules specified in regulations or standards so that the BIM applications with reasoning support (BIM-R applications) are necessary. The current way to develop BIM-R applications separately and represent rules by coding or in proprietary formats has the problems of both cost and efficiency. To solve the problems, a new way is proposed, i.e. to use a platform for rapid development of BIM-R applications (BIM-R platform) implemented based on ontology and freeware components. The research establishes 1) the functional requirements of the BIM-R platform, 2) the mechanism to transform BIM data into ontology data, and 3) the architecture of the BIM-R platform, and selects freeware components to be used. A platform is implemented accordingly and applied to develop a prototype BIM-R application for as-bid cost estimation of buildings for verification. The proposed platform can help reduce cost and improve efficiency for the development of BIM-R applications and can be used by both researchers and developers.

Keywords: BIM (Building Information Modeling), Reasoning, Rapid Development Platform, Ontology, Freeware

DOI: https://doi.org/10.24928/JC3-2017/0330

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Series: jc3:2017 (browse)
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Zoran Pučko, Dražen Vincek, Andrej Štrukelj and Nataša Šuman

Planning of Maintenance Cost for Business-Storage Facility Using BIM

Abstract: The aim of this paper is to present case study of the use of BIM approach for planning of maintenance cost of a facility in the operation time of a real business-storage facility in Slovenia. The first part outlines general principles of FM and BIM. Next, the features of facility maintenance are described according to the current Slovenian legislation. In addition, several standards used in other countries, as the result of the mutual development of the FM and BIM, are introduced. After that, step-by-step procedures for planning of maintenance cost are exposed, namely from Element list for maintenance, determination of the lifetime, service measures and cost analysis to development of cost plan in tabular form. The presented cost plan is designed in a unique way in which cost analysis is performed by using BIM approach with linked data to 3D BIM model. Moreover, Construction Project Management Software (Vico Office) is applied. For the purpose of appraisal maintenance costs over the entire life of 60 years, cumulative costs are distributed over the years. Thus, the cost plan is made in tabular form in Excel, presenting visual overview of planned maintenance more explicitly.

Keywords: Facility Maintenance, Building Information Modelling, BIM, Cost Analysis, Cost Plan

DOI: https://doi.org/10.24928/JC3-2017/0016

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