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Rode C, Grau K

Pragmatic implementation of an integrated building design system

Abstract: A set of simple procedures has been developed to facilitate data exchange betweenapplications for building design and analysis using the ISO STEP standard. A system architecture hasbeen devised that uses these procedures to bind small building analysis models together to fulfill acomplete design task. A system of small program modules is currently under development which, inthe first place, will function as a replacement for a conventional, stand-alone transient thermal analysisprogram. The system is based upon a common data model for a building, which is actually the unionof partial data models for the small program modules involved. New submodels will be added in alater stage so the scope of the system becomes broader than thermal analysis alone. The anticipatedend result is a pragmatic version of an integrated building design system that can easily be adaptedin today's building design practices.

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Full text: content.pdf (971,699 bytes) (available to registered users only)

Series: w78:1996 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.software-software (0.022626) class.software development (0.014169) class.impact (0.013938)
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Permission to reproduce these papers has been graciously provided by the University of Ljubljana. The assistance of the editor, Prof. Ziga Turk, is gratefully appreciated.


Se_rgio Leal Ferreira, Guilherme Kazuhisa Tanabe

COST DATABASE SYSTEM APPLIED TO REFURBISHMENT OF SOCIAL HOUSING IN BRAZILIAN CONTEXT

Abstract: In Brazil, low income people haven’t a good way or help to preview the budget to their projects, especially concerning to build or refurbish their houses. Moved by this lack of opportunity, this paper describes briefly the work carried out to give to this public a system prepared in Internet basis which help them to calculate more precisely the necessary funds to implement this kind of investment.Some questions emerge: How to communicate data to the Database System related to the planed build or related to the changes desired to be applied in a house existed? The Database System needs to keep cost data of new constructions and data of refurbished constructions since the costs are very different due to the different nature of the job? How to update costs of lots of items turning the system reliable?These and other critical questions will be answered along this work and we hope that, starting from a small and specific problem we spread the possibilities of this system, reaching a level of having real helpful tools. Reaching this level, the material produced can turn a seed of more complete and helpful systems.Computational technological support of the purposed system will be IFC, PHP and MySQL.

Keywords: IFC, Building Cost, Building Budget, Building Modeling

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Full text: content.pdf (510,651 bytes) (available to registered users only)

Series: w78:2008 (browse)
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Steven Vick and Ioannis Brilakis

Asphalt Road Layer Detection for Construction Progress Monitoring

Abstract: Transportation construction projects consistently underperform, with an estimated $82.6 billion globally in annual cost overruns. Current progress monitoring practices contribute to this poor performance thanks to their manual, subjective, inaccurate, and time-consuming nature. Automating this task could address these shortfalls and improve project performance. One way to accomplish this automation compares 3D Civil Infrastructure Model design surfaces to 3D point cloud reconstructions of the as-built scene. This requires automated detection of the design surfaces in the as-built data. Research in this area has focused on all-or-nothing detection of structural building components using methods that are a poor fit for large, complex, and closely-layered road design surfaces. These approaches ignore the kind of incremental progress detection needed on transportation projects. This paper proposes a method for detecting large road design surfaces in discrete regions (i.e. increments) of as-built point cloud data, contributing a novel model-guided and sparse hierarchical data structure ('layerTree') that addresses the limitations of existing state-of-the-art methods. The authors collected as-built and as-planned data during construction of a small residential road in Cambridge, UK. A total of 640 experiments on this data examined different combinations of layerTree parameters and classification rules, producing a peak accuracy of 86.62%, peak precision of 80.65%, and peak recall of 92.50%. The most balanced combination produced an accuracy of 86.50%, precision of 68.17%, and recall of 60.99%.

Keywords: Construction Progress Monitoring, Transportation, Drones

DOI: https://doi.org/10.24928/JC3-2017/0329

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Series: jc3:2017 (browse)
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Stewart R, Miller C, Mohamed S, Packham G

Sustainable development of construction small and medium enterprises (SMEs): it impediments focus

Abstract: Construction Small and Medium Enterprises (SMEs) face numerous impediments preventing their sustainable growth and development. These impediments include: operational factors; financial constraints; limited marketing and human resource management expertise; limited strategic planning; and ineffective Information Technology (IT) implementation. These factors are all contributing to the stagnated growth of these smaller, mostly privately owned companies. In an attempt to enhance the growth opportunities of SMEs, this paper firstly presents a conceptual framework incorporating the above-mentioned impediments. Secondly, the paper hones in on the IT implementation impediments in order to target the IT-specific barriers facing SMEs. Finally, the paper proposes some possible coping strategies to ensure more effective implementation of IT in SMEs.

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Full text: content.pdf (197,949 bytes) (available to registered users only)

Series: w78:2003 (browse)
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Permission to reproduce these papers has been graciously provided by the University of Auckland. The assistance of the editor who provided the full texts and the structured metadata, Dr. Robert Amor, is gratefully appreciated.


Sunaga N, Nakamura H, Okazawa T

Project management system for small-medium building construction project

Abstract: "Recently there are few big building construction projects in Japan, and it is accordingly a very important matter for general contractors how to get more efficiency in small-medium scale projects. The target of IT tool developments for construction project management has been shifted gradually form big projects to small-medium projects. Targeting at the project management of small-medium scale building construction, This paper describes the objectives, a methodology of IT-enabled process innovation. From an IT viewpoint, this paper discusses the following present states of small-medium construction projects in Japan; the problems that project managers are facing, and the characteristics of construction process. And this paper presents two case studies at construction sites to investigate the applicability of IT to construction processes. In the first case study, implementation of IT tools in construction processes is promoted. IT tools refer to the followings; several in-house management software, graphic software, 3D-CAD, e-mail, www, digital camera, web-camera, wireless LAN and so on. From this try, the methodology of categorization of project information is considered. The author himself worked as one of project managers in this construction project, consequently he had two roles both as a development staff and as a user of IT tools. So some empirical approach is included in this consideration. In the second case study, focusing on logistics, an Extranet is constructed among a general contactor and sub-contractors in order to share project data (ex. drawings or schedule .etc), to check on work progress with jobsite web-cameras from remote offices, to adjust schedules of incoming building materials. Through this experiment, possibility of IT-enabled process innovation is explored. In conclusion, this paper proposes a methodology of IT-enabled process innovation that derived from above studies, and describes the concept and the system composition of an Extranet saver for project management based on it."

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Full text: content.pdf (339,579 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.synthesis (0.053357) class.collaboration (0.018265) class.economic (0.005766)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


T Yamamoto, H Kusumoto, K Banjo

Data Collection System for a Rapid Recovery Work: Using Digital Photogrammetry and a Small Unmanned Aerial Vehicle (UAV)

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Full text: content.pdf (402,541 bytes) (available to registered users only)

Series: w78:2014 (browse)
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Tah J H M, Carr V

How do small and medium-sized consultancy practices perceive information technology in the new economy?

Abstract: Information Technology (IT) is very much an enabler, and there are many perceived benefits from its successful implementation within an organisation, including time savings, reduced waste, better information exchange, and even cost savings. However, the rapid changes taking place in this area are potentially problematic for the many small businesses involved in what is essentially a very fragmented construction industry. A series of five recent workshops, held at South Bank University in collaboration with the Construction Industry Council, the Department of the Environment, Transport and Regions, and the Information Technology Construction Best Practice programme, aimed to deal with this issue, and to solicit the opinions of those most closely involved. Attendees were invited from a number of professions, including engineers, architects, building surveyors, and quantity surveyors, all of whom were from consultancy practices which can be considered to be small and medium-sized enterprises (SME) within the construction industry. The IT knowledge of the attendees varied from novices who realised their computing skills were lacking, to IT managers and directors whose knowledge of systems and support issues was considerable. Presentations were made on the future of IT within the construction industry, and by professionals with considerable experience of implementing IT strategies in construction organisations. The ensuing discussions covered many areas of concern, including: the problems and difficulties associated with implementing a successful IT strategy within a construction SME; the merits and flaws of moving away from document-driven models to a data-repository-driven central project model; the potential for E-commerce and the use of the Internet within construction; the rise of construction web portals, and the use of web-based collaboration; problems and concerns associated with interoperability and standards within the construction software domain; and the role of other technologies, such as virtual reality, within the industry. There were many concerns from the attendees regarding the current use of IT in construction. It was generally seen as something which was necessary – even vital – to the success of organisations, but many felt that, as a consequence, they were being forced to deal with issues which shouldn’t exist ideally (such as the lack of computer-aided drawing (CAD) standards, and the multiple vendors in the CAD software market.) Also, some felt that they were being pushed down IT routes they wouldn’t have previously considered due to the requirements of clients. Indeed, a number of attendees felt that something which was sold as being greatly beneficial to many organisations seemed to consume vast quantities of resources in some cases, yet there was still very much a feeling of a need to ‘be in there.’ Details of the demographics of the attendees are presented, and the subjects of greatest concern during the discussions are detailed thoroughly. The paper aims to provide a snapshot of the IT concerns of SMEs in the construction industry as it enters the 21st century.

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Full text: content.pdf (174,541 bytes) (available to registered users only)

Series: w78:2001 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.collaboration (0.069301) class.economic (0.044484) class.communication (0.037222)
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Permission to reproduce these documents have been graciously provided by CSIR Building and Construction Technology. The assistance of the editors, Mr. Gustav Coetzee and Mr. Frances Boshoff, is gratefully appreciated.


TM Froese & Z Han

State of the Construction Information Technology Development Industry in Canada

Abstract: This paper studies the state of companies that develop information technology (IT) for the construction industry in Canada. The study collects survey results and other data about these companies. It explores the number and nature of companies, their products and markets, and their opinions about IT trends, opportunities and barriers, and collaboration with government and university resources. The study concludes that a small construction IT industry exists in Canada with some established, successful companies and a number of younger ventures.

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Full text: content.pdf (291,043 bytes) (available to registered users only)

Series: w78:2005 (browse)
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Permission to reproduce these papers has been graciously provided by the Technische Universität Dresden.


Varun Kasireddy and Burcu Akinci

A Case Study on Comparative Analysis of 3D Point Clouds from UAV and Terrestrial Scanners for Bridge Condition Assessment

Abstract: Recent improvements in 3D laser scanning technologies enabled accurate capturing of existing spatial conditions using point clouds. To leverage this progress for a more accurate condition assessment, state Department of Transportations (DOT) across the US have been utilizing scanning technologies through deployment of terrestrial laser scanners (TLS) and more recently Light Detection and Ranging (LIDAR) scanners fitted to UAVs. However, not much study thus far discusses the potential of these 3D point clouds captured from these two different data collection approaches for supporting automatic and detailed (element-level) condition assessment of bridges. The goal of this study is to compare the utilization of 3D point cloud generated from a terrestrial scanner with that from a UAV in supporting element-level condition assessment of bridges. This paper presents recent results from full scale deployment on a small/medium size highway bridge. An important component of our effort is to explore how well the collected data supports element level condition assessment as per National Bridge Inspection Standards (NBIS). This study assesses the potential to incorporate these data collection modalities into standard bridge safety inspection practice.

Keywords: Laser Scanning, Bridge, Condition Assessment, Element Level

DOI: https://doi.org/10.24928/JC3-2017/0041

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Series: jc3:2017 (browse)
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Vasara M, Salo J

Electronic commerce in Finland

Abstract: Electronic Commerce is one of the hot topics in the field of information technology today. It gives totally new possibilities and channels especially for small and medium sized companies (SME) to conduct global business. The small size of a company combined with its limited financial resources are not anymore an unbreakable barrier between SME and the global marketplace. In Finland the environment for electronic commerce is exceptionally feasible hence, our developed telecommunication infraStructure and liberal legislation. Also the atmosphere among public administrations and political decision makers is very encouraging for the implementation of electronic commerce.

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Series: ecce:1997 (browse)
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