建筑结构学报2025，Vol.46Issue(5)：70-83,14.DOI:10.14006/j.jzjgxb.2024.0398
RC楼板面内抗震性能及承载力计算方法研究进展
Progress in research on in-plane seismic performance and bearing capacity calculation method of RC floor slabs
摘要
Abstract
For exploring the in-plane seismic performance and bearing capacity calculation methods of concrete floor slabs comprehensively,a review of domestic and international research on the seismic performance of floor slabs was conducted,focusing on aspects such as in-plane stiffness,regularity,and analysis methods for floor slabs.Based on the relevant research results at home and abroad,a suggestion on the criteria for judging the damage degree of floor slabs under seismic loads was presented this paper,and some floor slabs were defined as key components according to the importance of their location,so as to take corresponding strengthening measures in structural design.When using principal tensile stress for crack resistance calculation of floor slabs,the equivalent tensile strength of concrete needs to be determined based on the biaxial tension or biaxial tension compression state.A simplified calculation method for in-plane bearing capacity of floor slabs was proposed,the in-plane equivalent tensile strength can be determined according to the equilibrium condition between the steel bar and the first principal tensile stress,and the influence of the angle between the steel bar and the crack on the strength of the steel bar can be considered.Combined with the relevant domestic and foreign codes and standards and the experience of structural engineering in China,the seismic performance objectives and structural strengthening measures of floor slabs were proposed.Through the seismic design principle of"strong horizontal diaphragm and weak lateral anti-force members",the adverse effects on the seismic performance of the structure caused by the in-plane deformation of the floor slab and the violent change of the internal force distribution of the lateral force members are avoided.关键词
钢筋混凝土楼板/面内受力性能/简化计算方法/抗震性能目标/抗震构造措施Key words
RC floor slab/in-plane mechanical behaviour/simplified calculation method/seismic performance objective/seismic construction measure分类
土木建筑引用本文复制引用
范重,王程,张艳霞,张成义,刘涛,张爱林..RC楼板面内抗震性能及承载力计算方法研究进展[J].建筑结构学报,2025,46(5):70-83,14.基金项目
中国建设科技集团科技创新基金中央研究院项目(Z2025C01). （Z2025C01）
