【摘要】 为了得到基于中国规范设计的延性RC剪力墙构件的变形性能指标限值,先通过文献中7片剪力墙构件的试验数据验证有限元方法的可靠性,然后采用有限元方法对根据现行中国规范设计的一批剪跨比λ≥2.0的延性RC剪力墙构件进行模拟分析,研究剪跨比、边缘构件的纵向配筋率、轴压比等因素对剪力墙构件变形性能的影响,最后通过对有限元结果的归纳分析,提出基于中国规范的延性RC剪力墙构件的变形性能指标及其限值:选取塑性区的塑性转角作为λ≥2.5的RC剪力墙构件的性能指标并给出其在大震下的塑性转角限值,选取塑性位移角作为2.0≤λ<2.5的RC剪力墙构件的性能指标并给出其在大震下的塑性位移角限值。更多还原

【Abstract】 In order to determine the deformation performance index limits for ductile RC shear wall components based on Chinese codes,the test data of seven shear wall components in other published articles are first used to verify the reliability of the finite element method.Then,the finite element method is applied to analyze a set of ductile RC shear wall components with shear span ratio λ≥2.0 and designed according to current Chinese codes.And the impact of the following factors on the deformation performance of RC shear wall components is studied: shear span ratio,longitudinal reinforcement ratio of the confined boundary members and axial compression ratio.Finally,the deformation performance index and the limits of the ductile RC shear wall components based on Chinese codes are proposed by the finite element model results.The plastic rotation of plastic zone is selected as the performance index of the RC shear wall components with λ≥2.5 and the limits of the plastic rotation under severe earthquakes are presented.The plastic drift is selected as the performance index of the RC shear wall components with 1.0≤λ<2.5 and the limits of the plastic drift under severe earthquakes are presented.更多还原