• Title/Summary/Keyword: Construction technology sector

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IMPLEMENTING WEB-BASED COLLABORATION PLATFORMS IN CONSTRUCTION: EVALUATING THE LANE COVE TUNNEL (LCT) EXPERIENCE

  • Rodney A. Stewart ;Debbie Smit ;Martin Betts
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.544-549
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    • 2005
  • Web-based collaboration platforms present construction project teams with an opportunity to improve the efficiency of document exchange, better control project communications and enhance team collaboration. However, many construction professionals are still not convinced that these platforms, in their current form, are fit-for-purpose and yield sufficient efficiencies for the construction procurement process. In an attempt to improve the current ICT diffusion process, this paper evaluates the implementation of a web-based collaboration tool on the Lane Cove Tunnel (LCT) project in Sydney, Australia. Moreover, the paper provides strategies for achieving more effective implementation of web-based collaboration platforms in the construction sector.

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Estimation and Feature of Greenhouse Gas Emission in Building Sector by National Energy Statistic (국가 에너지통계에 따른 건물부문 온실가스 배출량 추계 및 특성)

  • Jeong, Young-Sun;Kim, Tae-Hyoung
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.35 no.7
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    • pp.187-195
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    • 2019
  • In December 2015, The Paris Agreement was adopted to undertake ambitious efforts to combat climate change. Korean government announced its goal of reducing the country's greenhouse gas emissions by up to 37% below business as usual projections by 2030 in 2015. The purpose of this study was to set up the calculation methodology of GHG emission($CO_{2e}$) in building sector and to estimate the annual GHG emission in building sector based on national energy consumption statistic. The GHG emission from buildings is about 135.8 million ton $CO_{2e}$ as of 2015, taking up about 19.6% of Korea's entire emission and is about 144.7 million ton $CO_{2e}$ in 2017. The GHG emission of building sector is increasing at annual rate of 2.0% from 2001 to 2017. The GHG emission from electricity consumption in buildings is 91.8 million ton $CO_{2e}$ in 2017, is the highest $CO_2$ emission by energy source. The results show that the intensity of GHG emission of residential building sector is $40.6kg-CO_{2e}/m^2{\cdot}yr$ and that of commercial building sector is $68.4kg-CO_{2e}/m^2{\cdot}yr$.

A Study on the Use of Ubiquitous Technologies in Military Sector

  • Ju Min-Seong;Kim Seok-Soo
    • International Journal of Contents
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    • v.2 no.2
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    • pp.6-9
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    • 2006
  • The style of war in the $21^{st}$ century became digitalized cooperative union tactic, which relies heavily on the system providing real time information. Critical information is provided during the war from sensing to shooting. Therefore, epochal development in observation, reconnaissance (ISR), commanding (C4I) and precision strike (PGM) are necessary. Application of ubiquitous computing and network technologies in national defense is necessary for carrying out with various types of wars in the $21^{st}$ century. Therefore, the author wants to research core technology sector that can be developed and applied in preparation of ubiquitous national defense era. Also plans for applying recent u-Defense technology to the military sector had been suggested. Particularly, the author have suggested plans for utilizing combined future information technologies such as ad-hoc network, RFID for the logistic supply in construction of u-Defense system. By utilizing these information technologies, combat power and strategic capabilities of the military can be enhanced greatly.

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Optimum LWA content in concrete based on k-value and physical-mechanical properties

  • Muda, Zakaria Che;Shafigh, Payam;Yousuf, Sumra;Mahyuddin, Norhayati Binti;Asadi, Iman
    • Advances in concrete construction
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    • v.14 no.3
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    • pp.215-225
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    • 2022
  • Thermal comfort and energy conservation are critical issues in the building sector. Energy consumption in the building sector should be reduced whilst enhancing the thermal comfort of occupants. Concrete is the most widely used construction material in buildings. Its thermal conductivity (k-value) has a direct effect on thermal comfort perception. This study aims to find the optimum value of replacing the normal aggregate with lightweight expanded clay aggregate (LECA) under high strengths and low thermal conductivity, density and water absorption. The k-value of the LECA concrete and its physical and mechanical properties have varying correlations. Results indicate that the oven-dry density, compressive strength, splitting tensile strength and k-value of concrete decrease when normal coarse aggregates are replaced with LECA. However, water absorption (initial and final) increases. Thermal conductivity and the physical and mechanical properties have a strong correlation. The statistical optimisation of the experimental data shows that the 39% replacement of normal coarse aggregate by LECA is the optimum value for maximising the compressive and splitting tensile strengths whilst maintaining the k-value, density and water absorption at a minimum.

A Study on the Technology Level Assessment of Road Construction in Korea (한국의 도로분야 기술수준 분석에 관한 연구)

  • Kim, Kyong-Hoon;Lee, Du-Heon
    • Korean Journal of Construction Engineering and Management
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    • v.16 no.4
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    • pp.129-138
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    • 2015
  • In this study, the road construction field of high impact in the construction industry were selected, and the analysis of the detailed technology level was carried out. and we derived the main fields for future overseas. As results, the technology level of road facilities in korea was high about road operations and management sector, while it was relatively row about road pavements. And this study, we analyzed the economic, social and technological priority, and derived main fields to have the high investment efficiency. A derived items are found to be "maintenance-free Modular Road Pavements" and "Cities temperature reduction-type road".

A Study on 3D Geospatial Information Model based Influence Factor Management Application in Earthwork Plan (3차원 지형공간정보모델기반 토공사 계획 및 관리에 미치는 영향요인 관리 애플리케이션 연구)

  • Park, Jae-woo;Yun, Won Gun;Kim, Suk Su;Song, Jae Ho
    • Journal of the Korean Society of Industry Convergence
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    • v.22 no.2
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    • pp.125-135
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    • 2019
  • In recent years, the digital transformation age represented by the "Fourth Industrial Revolution", which is a universalization of digitalization across all industries, has become a reality. In the construction sector in 2018, the Ministry of Land, Infrastructure and Transport established the Smart Construction 2025 vision and established the 'Smart Construction Technology Roadmap' aiming to complete construction automation by 2030. Especially, in the construction stage, field monitoring technology using drones is needed to support construction equipment automation and on-site control, and a 3D geospatial information model can be utilized as a base tool for this. The purpose of this study is to investigate the factors affecting earthworks work in order to manage changes in site conditions and improve communication between managers and workers in the earthworks plan, which has a considerable part in terms of construction time and cost as a single type of work. Based on this, field management procedures and applications were developed.

Industry's Perception of Construction Technology Policy for Public Sector Projects (공공건설사업 기술정책 인식도 분석)

  • Lee, Du-Heon;Lee, Kyo-Sun;Park, Hee-Sung
    • Korean Journal of Construction Engineering and Management
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    • v.7 no.3 s.31
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    • pp.122-129
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    • 2006
  • The Ministry of Construction and Transportation(MOCT) announced the General Policy for Effective Implementation of Public Construction Projects(the Policy) in 1999. Fifty two regulations were amended to embody the Policy between 1999 to 2001 Then MOCT performed the analysis to show the quantitative performance of the Policy. However, there has been no effort to evaluate the degree of implementation and effectiveness of the Policy so far. Therefore, this paper was initiated to perform the survey on industry's perceptions, implementation degree, effectiveness, and satisfaction of the Policy. The result shows that most policies were implemented in the construction industry but some policies were little adopted. Therefore, this paper proposes to update the Policy based on the survey results to effectively implement public sector projects.

A Study on the Improvement of Safety Management of Public Sector in the Construction Industries (공공부문의 건설공사 안전관리 개선방향에 관한 연구)

  • Shin, Dong Hyuk;Lee, Myeong Gu;Yoon, Young Geun;Oh, Tae Keun
    • Journal of the Korean Society of Safety
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    • v.34 no.5
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    • pp.78-86
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    • 2019
  • Various safety measures have been established and implemented in order to reduce construction accidents. However, statistics data on at construction sites still show higher accident and mortality rates than other industries. As a result of investigating the causes of accidents occurring in the construction industry, most accidents resulted from the failure of the system. Therefore, the existing safety management system of the construction site is monitored so that it operates properly in the field, and it is an important factor to actively participate in construction work. In order to overcome this, the government emphasized on-site inspections and planning and implementation confirmation by public institutes to ensure the effectiveness of the safety management system through amendment of the Construction Technology Promotion Act, but the orderer' safety capability and manpower are insufficient at present. Therefore, in this study, the safety management system, such as design for safety, safety management plan, safety check, safety management cost, etc. specified in the Construction Technology Promotion Act, is regularly checked and confirmed to improve the effectiveness of the safety management system as well as to improve the safety management system of the construction site by deriving measures to strengthen the public function of the government.

Improving Data Input of ECO2-OD Program Utilizing BIM (BIM을 이용한 ECO2-OD 프로그램의 정보입력 개선)

  • Kang, Min-Su;Kim, Ka-Ram;Yu, Jung-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.205-207
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    • 2013
  • In a situation that building energy consumption is increasing worldwide, the research utilizing BIM technology to analyze building energy has been actively conducted. On the other hand, data input method of the building energy analysis has been still manually entered. This paper proposed a improved input method of required information for building energy analysis using the ECO2-OD program. As a result, although some required information of BIM based design software could be almost entered when it comes to general information and architectural sector, it has a problem to be handled in HVAC sector. Therefore, in the both of general and architectural sectors, the BIM information from the BIM-based design software could be directly used to automatically and systematically input the information. Future research should be studied the algorism and method in connection with data exchange to utilize input method of ECO2-OD from BIM data.

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