• Title/Summary/Keyword: green construction

Search Result 1,045, Processing Time 0.023 seconds

Indicators for Environmental Performance Assessment of Construction Activities (시공단계 환경성능 평가를 위한 평가지표 및 중요도 도출)

  • Lee, Sang-gyu;Kang, Gou-ne;Lee, Myung-do;Cho, Hun-hee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2012.05a
    • /
    • pp.145-146
    • /
    • 2012
  • With the increasing public concerns on sustainability in construction industry, a variety of standards for green buildings have been developed and implemented. However, most of their criteria are not adaptable to evaluate environmental performances of construction activities. Besides, the great part of existing studies are focusing only on energy consumption and CO2 emissions, overlooking the impact of pollution sources which occur intentionally in the construction phase. In this study, indicators and their importances are investigated to assess the overall environmental performance of construction activities.

  • PDF

Factor Deduction of the Checklist for Environmental Management in Construction Phase (시공단계 환경관리를 위한 체크리스트 항목 도출)

  • Kim, Chang-Won;Lee, Myungdo;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2013.05a
    • /
    • pp.139-141
    • /
    • 2013
  • Construction industry has been participated in the effort for the reduction of environmental pollution such as introduction of green building certification, enactment of environment related regulation. However these efforts are focused on the design and maintenance phases of entire life cycle, construction phase that can occur intensive environmental impact in a short period is insufficient. Therefore this study aim to derive environmental management factors in construction phase and assess them using reliability analysis and factor analysis. As a results, the 20 factors was classified into 4 superordinate such as 'plan and supervision', 'environmental factor management', 'licensing management', 'surrounding environment management'.Based on result of this study, further study should be developed the checklist for effective environmental management in construction phase.

  • PDF

Estimation of production length of PC beam by using splice length of bottom rebar (하부철근 이음길이에 따른 PC 보 제작 길이 산정)

  • Sung, Soojin;Lim, Chaeyeon;Kim, Sunkuk
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2014.05a
    • /
    • pp.84-85
    • /
    • 2014
  • Green frame is column-beam structure composed of precast concrete members. Based on Revision of Structural Concrete Design Code, the bottom rebar of beam shall be extend at least 150mm into the support member. However, if the bottom rebar extend to satisfy Revision of Structural Concrete Design Code, the installation fo beam is impossible due to interference between the columns and beams. Thus, the aim of this study is estimation of production length of precast concrete beam by using splice length of bottom rebar. In this study to solve this problem, lap splice were used on the join. This study was calculated length of the reinforcement by the diameter. According to the length of the rebar, the production length of beam concrete was calculated. The results of this study will satisfy the Revision of Structural Concrete Design Code about column-beam connection when green frame will be applied.

  • PDF

A Study on the Mock-up Test of Waterproofing/Root Penetration Resistance Technology for the Application to an Eco-bridge (생태교량 적용을 위한 방수·방근공법의 Mock-up 시험 연구)

  • Seon, Yun-Suk;Choi, Su-Young;Kim, Meong-Ji;Choi, Sung-Min;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2014.05a
    • /
    • pp.230-231
    • /
    • 2014
  • This study is concerned with the root penetration resistance competence and constructability of a waterproofing and root penetration resistance layer of an eco-bridge which is applied with various types of seeding. For the review of root penetration resistance competence, the competence was tested using herbs, woody plants, and tall trees. As a result, there was no tear of or damage to the waterproofing and root penetration resistance layer as well as the sweeping-down phenomenon of a waterproofing and root penetration resistance layer by soil. Also, the effect of the root growth of herbs, woody plants, and tall trees on the root penetration resistance system was confirmed.

  • PDF

Behaviour of FRP composite columns: Review and analysis of the section forms

  • Rong, Chong;Shi, Qingxuan;Zhao, Hongchao
    • Advances in concrete construction
    • /
    • v.9 no.2
    • /
    • pp.125-137
    • /
    • 2020
  • As confining materials for concrete, steel and fibre-reinforced polymer (FRP) composites have important applications in both the seismic retrofit of existing reinforced concrete columns and in the new construction of composite structures. We present a comprehensive review of the axial stress-strain behaviour of the FRP-confined concrete column. Next, the mechanical performance of the hybrid FRP-confined concrete-steel composite columns are comprehensively reviewed. Furthermore, the results of FRP-confined concrete column experiments and FRP-confined circular concrete-filled steel tube experiments are presented to study the interaction relationship between various material sections. Finally, the combinations of material sections are discussed. Based on these observations, recommendations regarding future research directions for composite columns are also outlined.

A study of environment marketing introduction plan in railroading : for the Green-railway embodiment of the korail (철도경영에 있어서의 환경마케팅 도입방안에 관한 연구)

  • Jung Ye-Seoung;Choi Gil-Mook
    • Proceedings of the KSR Conference
    • /
    • 2005.05a
    • /
    • pp.971-978
    • /
    • 2005
  • 21century world is changing by leaps and bounds and this among one of new issue ready front environment be. Specially, the human social economy enemy, current of change is already happening even if there is in traffic industry that back activity. That is, point that railroad has competitive power and comparative advantage than other transportation until transportation system construction that is environment-friendly as part of country comparative power strengthening is embossed newly. On this time, railroad reached time that environment management that it is applied that is environment-Paradigm over management whole as well as field of technology such as construction and rolling stocks is necessary. This paper wishes to grope plan that introduce this in railroading hereafter by examining necessity introduction in railway operation through environment marketing example. It must go to Ready front Green-railway.

  • PDF

The Thermal Performance of Building Insulation Materials According to Long-Term Aging (건축용 단열재의 장기 경시변화에 따른 열성능 특성)

  • Choi, Bo-Hye;Kang, Jae-Sik
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
    • /
    • v.25 no.11
    • /
    • pp.617-623
    • /
    • 2013
  • This study is to draw thermal property data during long-term aging, by testing the thermal conductivity of building insulation materials in Korea. The thermal resistance of extruded insulation within 3 days from manufacture performed well over the KS Standard. After 50 to 110 days, however, the thermal performance had deteriorated to the level of the KS standard. Eventually, after 4,000 days, the insulation performance had deteriorated to about 25.4~41.8% of the initial performance. Therefore, this research will be utilized as a reference for thermal properties during long-term aging, in order to improve standards and regulations related to building insulation materials.

Analysis of orthotropic plates by the two-dimensional generalized FIT method

  • Zhang, Jinghui;Ullah, Salamat;Gao, Yuanyuan;Avcar, Mehmet;Civalek, Omer
    • Computers and Concrete
    • /
    • v.26 no.5
    • /
    • pp.421-427
    • /
    • 2020
  • In this study, the two-dimensional generalized finite integral transform(FIT) approach was extended for new accurate thermal buckling analysis of fully clamped orthotropic thin plates. Clamped-clamped beam functions, which can automatically satisfy boundary conditions of the plate and orthogonality as an integral kernel to construct generalized integral transform pairs, are adopted. Through performing the transformation, the governing thermal buckling equation can be directly changed into solving linear algebraic equations, which reduces the complexity of the encountered mathematical problems and provides a more efficient solution. The obtained analytical thermal buckling solutions, including critical temperatures and mode shapes, match well with the finite element method (FEM) results, which verifies the precision and validity of the employed approach.

A Study of Models for Marketing Strategy in the Eco-friendly Apartment Housing Using Discriminant Analysis (판별분석을 이용한 친환경 아파트의 마케팅 전략에 관한 연구)

  • Kil, Ki-Suck;Lee, Joo-Hyung
    • KIEAE Journal
    • /
    • v.7 no.3
    • /
    • pp.11-20
    • /
    • 2007
  • The purpose of this study is to analyse the effects of the eco-friendly factors on the apartment housing price rise and to suggest the desirable way of marketing strategy for apartment housing. For the analysis, the data of apartment sites in Seoul had been collected from September 2006 to February 2007. The data consisted of 95 apartment sites in Seoul. Data were analyzed with descriptives, crosstabs, and discriminant analysis by SPSS/PC for Window. Following result was obtained. The eco-friendly apartment housing price rate in Seoul was determined by eco-friendly landscape, green space rate, house unit size, installment sale price per pyeong, floor space index, distance from subway station when it was not considered the impact of building age, construction company's brand, and autonomous districts. Findings of this research can provide valuable information for marketing strategy of housing construction company.

A Design of IT-Convergence Plant Factory System Using the Renewable Energy (신재생에너지를 활용한 IT-융합 식물공장 시스템 설계)

  • Lim, Gye-Jae
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.40 no.4
    • /
    • pp.769-779
    • /
    • 2015
  • In this paper, the ideal standard design and construction of plant factory systems with the Green IT technologies is proposed. For feasibility and problem analysis, a container-type plant factory which was integrated with hardware and software of elemental technologies was operated as a test bed. This operation testing and research will be the foundation of the future construction and operation of large plant factories.