Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Analysis of Economic Feasibility and Suitability of Highrise Buildings Using Highstrength Steel

고강도 강재를 활용한 초고층건물의 경제성 및 적합성 분석

  • Kim, Seonwoong (Department of Architecture and Plant Engineering, Youngsan University)
  • 김선웅 (영산대학교 건축플랜트학과)
  • Received : 2017.06.19
  • Accepted : 2017.06.21
  • Published : 2017.07.01
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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.

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References

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