• 제목/요약/키워드: Building construction projects

검색결과 1,026건 처리시간 0.03초

Schedule Management for Green Building Projects in Singapore: Schedule Delay, Causal Factors and Solutions

  • Hwang, Bon-Gang;Zhao, Xianbo;Leong, Lay Peng
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.527-531
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    • 2015
  • With the mounting concerns over environmental issues, green construction is gaining a place in the global construction industry. However, rare research has been conducted to analyze green construction projects, especially in the aspect of project schedule performance. As a result, this study aims to investigate the degree of project delay in green building construction, analyze the factors affecting schedule delay of green building projects, and finally provide recommendations to improve schedule performance of green building project. To achieve the objectives, a comprehensive literature review was carried out, followed by a survey conducted with 30 companies that provided data from 220 traditional and 96 green building projects. The analysis of the responses identified that 15.9% of the traditional building projects were delayed while 32.3% of the green building projects were completed behind schedule. Furthermore, the amount of the delays in green building projects was an average of 4.8% of their planned schedule. The top 5 critical factors that can cause delay in green building projects were identified as: (1) speed of decision-making by clients; (2) speed of decision-making involving all project teams; (3) communication/coordination between key parties; (4) level of experience of consultants; and (5) difficulties in contractors' project financing. Lastly, a list of recommendations was introduced, aiming to reduce schedule delay in green building construction projects based on the observations. This study will serve as s a base for further research on the enhancement of green building project schedule performance.

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A Neural Network Model for Building Construction Projects Cost Estimating

  • El-Sawalhi, Nabil Ibrahim;Shehatto, Omar
    • Journal of Construction Engineering and Project Management
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    • 제4권4호
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    • pp.9-16
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    • 2014
  • The purpose of this paper is to develop a model for forecasting early design construction cost of building projects using Artificial Neural Network (ANN). Eighty questionnaires distributed among construction organizations were utilized to identify significant parameters for the building project costs. 169 case studies of building projects were collected from the construction industry in Gaza Strip. The case studies were used to develop ANN model. Eleven significant parameters were considered as independent input variables affected on "project cost". The neural network model reasonably succeeded in estimating building projects cost without the need for more detailed drawings. The average percentage error of tested dataset for the adapted model was largely acceptable (less than 6%). Sensitivity analysis showed that the area of typical floor and number of floors are the most influential parameters in building cost.

건축프로젝트 현장 조직 커뮤니케이션이 성과에 미치는 영향 (Influence of Site Organization's Communication on Performance of Building Construction Projects)

  • 안성훈;이웅균
    • 한국건축시공학회지
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    • 제17권4호
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    • pp.361-367
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    • 2017
  • 건축프로젝트의 성공적인 수행을 위해서는 현장 조직의 커뮤니케이션 수준을 높여서 조직 구성원의 협업 능력을 향상시켜야 한다. 따라서 본 연구의 목적은 건축프로젝트 현장 조직을 대상으로 현장 조직 커뮤니케이션이 프로젝트 성과에 어떤 영향을 미치는지 파악하는 것이다. 연구 결과 커뮤니케이션 품질은 프로젝트 성과에 긍정적인 영향을 미치며, 정보공유는 프로젝트 성과에 부정적인 영향을 미치는 것으로 나타났다. 따라서 건축프로젝트 성과를 향상시키기 위해서는 현장 조직에서 정보공유를 일정수준 이상 달성해야 하고, 커뮤니케이션 품질을 향상시켜야 한다. 본 연구 결과는 건축프로젝트 현장 조직의 수행관리 체계를 구축하는데 기여할 수 있을 것이다.

밀도분석에 의한 공동주택 현장관리 인력 배치계획 분석 (Investigation on the Manpower Staffing Plan Utiling Density Analysis Method)

  • 권기덕;김선국;손효원;최재휘;이동훈
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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    • pp.119-123
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    • 2010
  • Recent economic slump has highlighted the needs for the construction industry to develop strategies to improve productivity and overhaul organization structure. Notably, it is urgent to improve productivity of apartment building construction projects that account for about half of the aggregate revenue of building construction projects in Korea. As construction site management manpower staffing plan has close relation with the productivity of building construction, it is essential to staff construction sites adequately in consideration of site conditions and characteristics. However, construction companies of Korea are still far from developing site management manpower staffing plan in reference to quantitative standards. Therefore, this research aims to analyze site management manpower staffing plan of apartment building construction project by means of density analysis. To be more specific, site organization charts and staffing plans of apartment building construction projects put together by large construction companies in Korea are studied and essential resources and their mobilization time of apartment building construction projects are examined. Conclusions herein will provide basic inputs to subsequent studies of apartment building construction site management manpower staffing standards.

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Construction of Time - Cost Model for Building Projects in Vietnam

  • Long, Le-Hoai;Lee, Young-Dai;Cho, Jeong-Wook
    • 한국건설관리학회논문집
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    • 제10권3호
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    • pp.130-138
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    • 2009
  • Bromilow's time-cost (BTC) relationship was examined for building projects in Vietnam using actual construction time and total construction cost. Data set was collected from 77 historical building construction projects completed between 1999 and 2005 which were adjusted by consumer price index (CPI) to 2000 price. Time-cost equations were specified respected to two sectors, public and private, in Vietnamese construction industry and all cases. It is shown that a public funded building project has the longer construction duration than a similar budget private funded project. The resulting models are statistically significant. The adjusted R-square coefficients of all cases, public and private projects models are respectively 0.403, 0.436 and 0.377 mean that the BTC regression lines moderately fit the data set.

A COST DATA-BASED ESTIMATING MODEL FOR FINISHES IN THE KOREAN PUBLIC OFFICE BUILDING PROJECTS

  • Joon-Oh Seo;Sang H.Park;Choong-Wan Koo;Jong-Hoon Kim
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.685-691
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    • 2009
  • Recently, public office building projects are being recognized by many construction engineers and researchers, as the critical projects in the construction industry. The project budgets have sometimes exceeded due to the lack of core knowledge, experiences, skills and experts concerned in cost planning and estimating in the pre-construction stage. It has been highlighted that planning and estimating effectively the cost of public office building projects as critical in the design stage. Within this context, some cost data books and systems, such as RSMeans cost data systems and Spon's price book, have been systematically developed and used by many construction cost managers and organizations in order to effectively estimate and use their project budgets. As a result of this research, a cost estimating model for finishes has been developed, considering the cost data used in public office building projects.

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Causes of Schedule Delays in Building Construction Projects in Vanuatu

  • Kim, Dae Young;Chi, Seokho
    • 한국건축시공학회지
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    • 제15권6호
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    • pp.641-651
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    • 2015
  • With its recent tourism boom, Vanuatu, a small country in the South Pacific, is experiencing an increasing demand for construction. However, it has been struggling with persistent schedule delays in their construction projects due to a variety of reasons. In an attempt to respond to this situation, this paper aims to identify the major causes of schedule delays in building construction in Pacific island countries, with a focus on Vanuatu. To collect data on the factors affecting schedule delays, face-to-face interviews were conducted. Based on these, seven major causes of schedule delays, as selected by the majority of the participants, were identified and discussed to provide perceptive insights for future improvement opportunities. This paper attempts to help contractors with limited resources better understand the major causes of schedule delay in Vanuatu and achieve better performance in building projects.

3D/BIM Applications to Large-scale Complex Building Projects in Japan

  • Yamazaki, Yusuke;Tabuchi, Tou;Kataoka, Makoto;Shimazaki, Dai
    • 국제초고층학회논문집
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    • 제3권4호
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    • pp.311-323
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    • 2014
  • This paper introduces recent applications of three-dimensional building/construction data modeling (3D) and building information modeling (BIM) to large-scale complex building construction projects in Japan. Recently, BIM has been utilized as a tool in construction process innovation through planning, design, engineering, procurement and construction to establish a front-loading-type design building system. Firstly, the background and introduction processes of 3D and BIM are described to clarify their purposes and scopes of applications. Secondly, 3D and BIM applications for typical large-scale complex building construction projects to improve planning and management efficiency in building construction are presented. Finally, future directions and further research issues with 3D and BIM applications are proposed.

A Presentation of a Cost Classification System for Gas Plant Construction Projects

  • Park, Moonsun;Kim, Yongsu
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.625-626
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    • 2015
  • The purpose of this study is to present a cost classification system that can be used in gas plant construction projects. Towards this end, it examined the detailed statements of the construction companies which had experience in carrying out plant construction projects. Based on the above, it also presented a life-cycle (i.e., EPCC) cost classification system for the gas plant construction projects by conducting the Delphi analysis through the expert opinions.

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AN ANALYSIS ON FACTORS AFFECTING SCHEDULE PERFORMANCE OF PUBLIC HOUSING PROJECTS: CASE OF SINGAPORE

  • Bon-Gang Hwang;Xianbo Zhao;Si Yi Ng
    • 국제학술발표논문집
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    • The 5th International Conference on Construction Engineering and Project Management
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    • pp.412-418
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    • 2013
  • With the increasing demand for public housing, the Singapore government decided to reduce the waiting time of future public housing owners, which requires these projects to be completed on time. As a result, this study aims to identify the frequent and impactful factors affecting schedule performance of public housing projects in Singapore. The survey conducted with 36 industry experts revealed that "site management", "coordination among various parties", "design changes by owner during construction", "availability of laborers on site", "availability of material", and "availability of staff to manage projects" were the six factors that should be emphasized to assure the schedule performance of public housing projects. In addition, there was statistically significant agreement between public housing projects and other building projects on both the frequency and impact ranks of the factors. The findings from this study will help practitioners involving public housing projects to take measures to assure the achievement of project schedule objectives.

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