등가 기둥 모델을 이용한 철근콘크리트 전단벽-골조 구조물의 푸쉬오버 해석
Pushover Analysis of Reinforced Concrete Wall-Frame Structures Using Equivalent Column Model
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
RC shear wall sections which have irregular shapes such as T, ㄱ, ㄷ sections are typically used in low-rise buildings in Korea. Pushover analysis of building containing such members costs a lot of computation time and needs professional knowledge since it requires complicated modeling and, sometimes, fails to converge. In this study, a method using an equivalent column element for the shear wall is proposed. The equivalent column element consists of an elastic column, an inelastic rotational spring, and rigid beams. The inelastic properties of the rotational spring represent the nonlinear behavior of the shearwall and are obtained from the section analysis results and moment distribution for the member. The use of an axial force to compensate the difference in the axial deformation between the equivalent column element and the actual shear wall is also proposed. The proposed method is applied for the pushover analysis of a 5-story shear wall-frame building and the results are compared with ones using the fiber elements. The comparison shows that the inelastic behavior at the same drift was comparable. However, the performance points estimated using the pushover curves showed some deviations, which seem to be caused by the differences of estimated yield point and damping ratios.
Abstract
RC shear wall sections which have irregular shapes such as T, ㄱ, ㄷ sections are typically used in low-rise buildings in Korea. Pushover analysis of building containing such members costs a lot of computation time and needs professional knowledge since it requires complicated modeling and, sometimes, fails to converge. In this study, a method using an equivalent column element for the shear wall is proposed. The equivalent column element consists of an elastic column, an inelastic rotational spring, and rigid beams. The inelastic properties of the rotational spring represent the nonlinear behavior of the shearwall and are obtained from the section analysis results and moment distribution for the member. The use of an axial force to compensate the difference in the axial deformation between the equivalent column element and the actual shear wall is also proposed. The proposed method is applied for the pushover analysis of a 5-story shear wall-frame building and the results are compared with ones using the fiber elements. The comparison shows that the inelastic behavior at the same drift was comparable. However, the performance points estimated using the pushover curves showed some deviations, which seem to be caused by the differences of estimated yield point and damping ratios.
참고문헌 (17)
- KISC, "Guidelines for seismic performance evaluation and rehabilita tion of existing buildings", Korea Infrastructure Safety Corporation, 224~ (2004)
- Seismic Rehabilitation of Existing Buildings, "American Society of Civil Engineers", ~, pp.ASCE (2007), SEI 41-06
- Orakcal K, "Flexural Modeling of Rinforced Concrete Walls-Model Atribute", ACI Structural Journal, 101(5), pp.688~698 (2004)
- Applied Technology Council, "PEER", ATC-72-1 Modeling and Acceptance Criteria for Seismic Design and Analysis of Tall Buildings, 2010, pp.242~
- Analytical models for predicting the lateral response of RC shear walls: Evaluation of their reliability, "Vulcano A", University of California, ~, pp.Report NO. UCB (1987), EERC-87[DOI]
- Milev JI, "Two Dimensional Analytical Model of Reinforced Concrete Shear Walls", Proc, 11th of WCEE (1996)
- Kabeyasawa T, "Discussion of Dynamic Response System", Proc. 8th of WCEE. US-japan Cooperative Research on R, 1984, 627~634
- 김동관, "철근콘크리트 벽체의 비선형해석을 위한 거시 모델", 콘크리트학회 논문집, 23(5), pp.569~579 (2011), 한국콘크리트학회
- 김태완, "경계요소를 가진 철근콘크리트 전단벽의 비선형 해석을 위한 간편 모델", 한국지진공학회논문집, 15(4), pp.45~54 (2011), 한국지진공학회
- Ko DW, "Nonlinear Static Analysis of Irregular RC Buildings", Proceeding of Earthquake Engineering Society of Korea, pp.225~232 (2006)
- MATLAB Programming Fundamentals, "MATLAB Programming Fundamentals. Revised for Version 7.14", The Mathworks Inc, 985~ (2012)
- Optimization Toolbox™ User’s Guide. Revised for Version 6. 1, "Optimization Toolbox™ User’s Guide. Revised for Version 6.1", The Mathworks Inc, 776~ (2012)
- A study of combined bending and axial load in reinforced concrete members, "Eivind H", Univ. of Illinois engineering experi ment station, 128~, pp.Bulletin 399 (1951)
- Cho BH, "Deformation based seismic design of asymmetric wall structures", pp.2012
- Computer and Structures, Inc, "PERFORM User Guide ver 4", CSI, ~ (2006)
- Computer and Structures, Inc, "Components and E lements for PERFORM 3D and PERFORM-Collapse ver 4", CSI, ~ (2006)
- Yu, EJ, "seismic performance evaluation and rehabilitation of existing buildings", EESK Tech. Workshop (2013), EESK