建筑结构学报2025，Vol.46Issue(4)：57-69,13.DOI:10.14006/j.jzjgxb.2024.0232
部分预制装配型钢混凝土剪力墙抗震性能研究
Study on seismic behavior of partially precast steel reinforced concrete shear walls
摘要
Abstract
In order to facilitate the issues of complex seam connections and numerous on-site construction process of traditional prefabricated steel reinforced concrete shear walls,a partially precast steel reinforced concrete(PPSRC)shear wall,which consisted of a hollow wall panel,profile steel,and steel throat connections,was proposed in this paper.Six PPSRC shear walls with a test axial compression ratio of 0.35 were designed and tested under cyclic load horizontally to explore the seismic behavior of the composite shear walls.The test parameters included construction methods(i.e.,precast or cast-in-place),shear-to-span ratios,and steel ratios of the boundary elements.The failure patterns,hysteretic behavior,stiffness degradation,energy dissipation capacity,and deformability of the test specimens were investigated.In addition,the effect of the steel throat connection on the seismic behavior of the shear walls was explored using finite element analysis based on ABAQUS.Both test and numerical results indicates that specimens with large shear-to-span ratio(λ=2.0)suffer bending-shear failure,while those with small shear-to-span ratio(λ=1.0)exhibit typical shear failure.The initial stiffness,bearing capacity and deformation capacity of the cast-in-place and precast specimens are comparable under different shear-to-span ratios,indicating that the PPSRC shear walls can meet performance indexes similar to those of the traditional SRC shear walls.As the steel ratio increases from 2％to 2.33％,the energy dissipation of the specimens with large and small shear-to-span ratios is improved by 63.3％and 61.2％,respectively.The calculation formula for load-carrying capacity of PPSRC specimens was calculated using the equations of the current standards based on an area-weighed method to determine the effective concrete strength at the cross-section.The ratios of calculated-to-tested bearing capacities range from 0.68 to 0.85,demonstrating that the proposed calculation formula can be used for predicting the bearing capacity of PPSRC shear walls and it provides sufficient safety margins.关键词
装配式结构/剪力墙/型钢混凝土/拟静力试验/有限元分析/抗震性能Key words
prefabricated structure/shear wall/steel reinforced concrete/quasi-static test/finite element analysis/seismic behavior分类
建筑与水利引用本文复制引用
于云龙,谭斌,薛亦聪,刘亚平,杨勇..部分预制装配型钢混凝土剪力墙抗震性能研究[J].建筑结构学报,2025,46(4):57-69,13.基金项目
国家自然科学基金项目(52478208,52108172),陕西省重点研发计划(2024SF-YBXM-651). （52478208,52108172）
