고강도 강재를 활용한 초고층건물의 경제성 및 적합성 분석
Analysis of Economic Feasibility and Suitability of Highrise Buildings Using Highstrength Steel
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This paper aims to analyze the economic feasibility and investigate the possibility of elastic seismic design of wind-designed highrise concentrically braced frames considering change of mechanical properties of Korean steel under the strong wind and the low seismicity in Korea. To this end, first, highrise concentrically braced frames were designed considering strong wind load. And then, analyses of the economics of them were performed. The seismic performance evaluation of wind-designed highrise buildings was conducted using the response spectrum analysis procedure. Analysis results show that it is possible to save up to approximately 90% of the amount of steel on the 10% increase in steel strength without serviceability. However, with serviceability, the design sectional area of the steel with relatively high strength tends to increment considerably because of the lateral stiffness due to reduction of the inertia moment and so on. This point might apply to limitation of the steel with high tensile yield strength.
Abstract
This paper aims to analyze the economic feasibility and investigate the possibility of elastic seismic design of wind-designed highrise concentrically braced frames considering change of mechanical properties of Korean steel under the strong wind and the low seismicity in Korea. To this end, first, highrise concentrically braced frames were designed considering strong wind load. And then, analyses of the economics of them were performed. The seismic performance evaluation of wind-designed highrise buildings was conducted using the response spectrum analysis procedure. Analysis results show that it is possible to save up to approximately 90% of the amount of steel on the 10% increase in steel strength without serviceability. However, with serviceability, the design sectional area of the steel with relatively high strength tends to increment considerably because of the lateral stiffness due to reduction of the inertia moment and so on. This point might apply to limitation of the steel with high tensile yield strength.
참고문헌 (14)
- 이철호, "Elastic Seismic Design of Steel High-rise Buildings in Regions of Strong Wind and Moderate SEismicity", International Journal of STEEL STRUCTURES, 7(4), pp.253~261 (2007), 한국강구조학회
- 김선웅, "Seismic Performance of Wind-Designed Diagrid Tall Steel Buildings in Regions of Moderate Seismicity and Strong Wind", Steel and Composite Structures, An International Journal, 14(2), pp.155~171 (2013), 국제구조공학회
- 김선웅, "Potentials of elastic seismic design of twisted high-rise steel diagrid frames", Steel and Composite Structures, An International Journal, 18(1), pp.121~134 (2015), 국제구조공학회[DOI]
- Korean Agency for Technology and Standards, "Rolled steel for welded structure: KS D 3515", KATS, ~ (2016)
- Architectural Institute of Korea, "Korean Building Code and Commentary 2016", AIK, ~ (2016)
- American Society of Civil Engineers, "Minimum Design Loads for Buidings and Other Structures: ASCE 7-10", ASCE, ~ (2010)
- National Building Code of Canada, "User’s Guide-NBC 2005 Structural Commentaries (Part 4 of Division B)", NBCC 2005, ~ (2005)
- MIDAS Genw, "General Structure Design System for Windows", MIDASIT, ~ (2010)
- Council on Tall Buildings and Urban Habitat, "Recommendations for the Seismic Design of Highrise Buildings", CTBUH, ~ (2008)
- Los Angeles Tall Buildings Structural Design Council, "An alternative procedure for seismic analysis and design of tall buildings located in the Los Angeles region: consensus document", LATBSDC, ~ (2011)
- Tall Buildings Initiative Guidelines for Performance-Based Seismic Design of Tall Buildings, "Pacific Earthquake Engineering Research Center", PEER, ~, pp.Report No. 2010 (2010), 05
- Satake N, "Damping evaluation using full scale data of buildings in Japan", Journal of Structural Engineering, 129(4), pp.470~477 (2003)
- Tamura Y, "Amplitude dependency of damping in buildings and estimation techniques", Proceedings of 12th AWES Wind Engineering Workshop (2006)
- American Society of Civil Engineers, "Seismic Evaluation and Retrofit of Existing Buildings: ASCE 41-13", ASCE, ~ (2014)