역V형 보통가새골조의 반응수정계수
Response Modification Factors of Inverted V-type Ordinary Concentrically Braced Frames
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참고문헌
키워드
초록
본 논문에서는 현행 내진설계방법에 따라 설계된 역V형 보통 가새골조 (OCBF)의 비선형 정적 해석을 수행하고, 그 결과를 바탕으로 초과강도계수, 연성계수, 반응수정계수 및 변위 증폭계수 등을 산정하였다. 해석결과에 따르면 대부분의 해석모델에서 현행 내진설계 기준에서 제시한 값보다 작은 초과강도계수 및 반응수정계수 값을 가지는 것으로 나타났다. 그러나 수직 보강 기둥 (zipper column)으로 가새를 보강한 경우 초과강도계수 및 반등수정계수는 보통 가새 구조물에 비하여 상당히 증가하는 것으로 나타났다.
Abstract
In this paper the overstrength factors, ductility factors, and response modification factors of ordinary concentric braced frames designed in accordance with a current seismic design code are determined by performing pushover analysis. According to the analysis results, the overstrength and the response modification factors turn out to be larger than the values regulated in the codes in most model structures. However if the braces are reinforced by BRB or zipper columns, the overstrength factors and response modification factors turn out to increase significantly.
참고문헌 (16)
- "Tentative provisions for the development of seismic regulations for buildings", pp.45~53 (1978)
- "Structural response modification factors", pp.5~32 (1995)
- "A critical review of current approaches to earthquake-resistant design", pp.31~36 (1995)
- "Establishing R and factors for building seismic provisions", 119(1), pp.19~28 (1991)
- "Strength and ductility considerations in seismic design" (1990)
- "Overstrength and ductility factors for steel frames designed according to BS 5950", 129(8), pp.1019~1035 (2003)
- "International Building Code" (2000), International Code Council
- "Seismic Provisions for Structural Steel Buildings" (2002), AISC
- "NEHRP Recommended Provisions for the Development of Seismic Regulations for New Buildings" (1997)
- "Static and Dynamic Analysis of Plane Structure University of California" (1993)
- "NEHRP Commentary on The Guidelines for The Seismic Rehabilitation of Buildings" (1997)
- "Prestandard and Commentary for The Seismic Rehabilitation of Building" (2000)
- "Recommended Lateral Force Requirements and Commentary" (1997), SEAOC Blue Book, Structural Engineers Association of California
- "Evaluation of strength reduction factors for earthquake-resistant design", 10(2), pp.357~379 (1994)
- "?Seismic Evaluation and Upgrading of Chevron Braced Frames", 59(8), pp.971~994 (2003)
- "역V형 철골가새골조의 비탄성거동 및 내진성능 향상방안에 관한 연구", 15(5), pp.571~578 (2003)