저층 조적건물의 내진성능평가 사례 연구
Case Study of Seismic Evaluation of Low-Rise Masonry Buildings
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In this study, the seismic performance of a two-story unreinforced masonry (URM) building was assessed following the linear and nonlinear static procedures specified in the seismic evaluation guideline of existing buildings. First, the provisions to assess failure modes and shear strengths of URM walls and wall piers were reviewed. Then, a two-story URM building was assessed by the linear static procedure using m-factors. The results showed that the walls and wall piers with aspect ratios he /l (i.e., effective height-to-length ratio) > 1.5 were unsafe due to rocking or toe crushing, whereas the walls with he /l ≤1.5 and governed by bed-joint sliding mainly were safe. Axial stresses and shear forces acted upon individual masonry walls, and wall piers differed depending on whether the openings were modeled. The masonry building was reevaluated according to the nonlinear static procedure for a more refined assessment. Based on the linear and nonlinear assessment results, considerations of seismic evaluation for low-rise masonry buildings were given with a focus on the effects of openings.
Abstract
In this study, the seismic performance of a two-story unreinforced masonry (URM) building was assessed following the linear and nonlinear static procedures specified in the seismic evaluation guideline of existing buildings. First, the provisions to assess failure modes and shear strengths of URM walls and wall piers were reviewed. Then, a two-story URM building was assessed by the linear static procedure using m-factors. The results showed that the walls and wall piers with aspect ratios he /l (i.e., effective height-to-length ratio) > 1.5 were unsafe due to rocking or toe crushing, whereas the walls with he /l ≤1.5 and governed by bed-joint sliding mainly were safe. Axial stresses and shear forces acted upon individual masonry walls, and wall piers differed depending on whether the openings were modeled. The masonry building was reevaluated according to the nonlinear static procedure for a more refined assessment. Based on the linear and nonlinear assessment results, considerations of seismic evaluation for low-rise masonry buildings were given with a focus on the effects of openings.
참고문헌 (13)
- Korea Infrastructure Safety Corporation, "Guide Lines for Seismic Performance Evaluation for Existing Buildings", ~ (2013)
- American Society of Civil Engineers, "ASCE 41-13 Seismic Evaluation and Retrofit of Existing Buildings", ~ (2013)
- 김태완, "3단계 절차를 이용한 비보강 조적조 건물의 내진성능평가", 한국지진공학회논문집, 15(3), pp.57~64 (2011), 한국지진공학회
- Moon KL, "Seismic Strenthening of Low-Rise Unreinforced Masonry Structures with Flexible Diaphragms", Ph.D., pp.2004
- Moon FL, "Testing of a Full-Scale Unreinforced Masonry Building Following Seismic Strengthening", Journal of Structural Engineering, 133(9), pp.1215~1226 (2007)
- 강성훈, "비보강 조적벽체의 면내 강체회전 성능에 관한 연구", 대한건축학회논문집 구조계, 26(12), pp.45~56 (2010), 대한건축학회
- 이원호, "비보강 조적벽체 전단내력 평가에 관한 연구", 대한건축학회논문집 구조계, 21(10), pp.3~12 (2005), 대한건축학회
- 박주남, "비보강 조적식 구조의 형상에 따른 내진성능 평가 해석", 한국지진공학회논문집, 20(5), pp.277~283 (2016), 한국지진공학회
- 김상철, "비강체 격막을 가진 저층 조적조 구조물의 지진거동에 대한 분석", 대한건축학회논문집 구조계, 19(4), pp.63~70 (2003), 대한건축학회
- American Society of Civil Engineers, "ASCE 41-17 Seismic Evaluation and Retrofit of Existing Buildings", ~ (2017)
- 설윤정, "외부벽체 강도증진형 보강이 적용된 비보강 조적조 건물의 내진성능평가", 한국지진공학회논문집, 24(2), pp.77~86 (2020), 한국지진공학회[DOI]
- Turnsek V, "The Shear and Flexural Resistance of Masonry Walls", Proc. Int. Research Conf. on Earthquake Engineering (1980)
- Computer and Structures Inc., "Perform-3D: Nonlinear Analysis and Performance Assessment for 3D Structures - User Guide Ver. 5", ~ (2013)