비선형 정적해석을 통한 횡저항 시스템의 설계방안 연구 = Design of Lateral Load Resisting System Using Nonlinear Static Analysis

다국어 초록 (Multilingual Abstract)

<P>The design practice of the lateral resisting system has been traditionally dependent on the experience and know-how of a structural engineer. And the method to reflect the evaluation results of building"s capacity on design process doesn"t exist. The proposal of a rational design of the lateral load resisting system is based on the available full capacity(R<SUB>ac</SUB>) of a building and the minimum required capacity(R<SUB>code</SUB>) suggested in the code. This study suggests that nonlinear static analysis, which is the estimation of the lateral capacity with the pushover analysis, be included in the existing design procedure of the structure. After finishing the basic structural design, the lateral resisting capacity of a building is estimated. At the phase of nonlinear static analysis, pushover analysis is performed to define the fully yielded baseshear (V<SUB>Y</SUB>). When the design wind baseshear (V<SUB>wind</SUB>) is bigger than the design seismic baseshear (V<SUB>D</SUB>), the value is checked to determine whether or not it is smaller than the V<SUB>Y</SUB>. After confirming that it is smaller, the R<SUB>ac</SUB> of the structure is computed. If the V<SUB>D</SUB> is bigger at first, only the R<SUB>ac</SUB> is computed. When the value of the estimation shows remarkable differences with the R<SUB>code</SUB>, repetition of the design modification is needed for those approximate to the R<SUB>code</SUB>. Application of the proposed design procedure to 2-D steel braced RC buildings has proven to be efficient.</P>

참고문헌 (Reference)

1 김건우, "고차모드 영향을 반영한 푸쉬오버 해석 횡력 분배계수" 한국구조물진단유지관리공학회 10 (10): 203-210, 2006

2 이동근, "건축구조물의 비선형 지진응답 평가를 위한 개선된 지진하중 분배방법" 5 (5): 33-47, 2001

3 대한건축학회, "건설교통부 고시 건축구조설계기준"

4 ATC, "Seismic Evaluation and Retrofit of Concrete Buildings Volume 1"

5 FEMA, "NEHRP Guidelines for the seismic rehabilitation of buildings"

6 MIDAS, "General structure design system-MIDAS/Gem Ver. 6.3.5 Program"

7 Peter Fajfar, "A nonlinear analysis method for performance-based seismic design" M.EERI 573-592, 2000

8 Chopra AK, "A modal pushover analysis procedure to estimate seismic demands for buildings: theory and preliminary evaluation" Pacific Earthquake Engineering Research Center 2001