北京建筑大学学报2025，Vol.41Issue(6)：59-65,7.DOI:10.19740/j.2096-9872.2025.06.07
基于弯曲-斜压复合传力机制的RC剪力墙水平承载力计算方法
Calculational Method of Horizontal Bearing Capacity of RC Shear Walls Based on A Mixed Flexure-Diagonal Compression Mechanism
摘要
Abstract
Based on a mixed flexure-diagonal compression mechanism,a calculation method is proposed to calculate the ultimate bearing capacity of reinforced concrete shear walls with small and medium shear-to-span ratios.In this model,the ultimate bearing capacity of shear wall is composed of flexural mechanism and diagonal compression mechanism,and the link between the flexural mechanism component and the ideal flexural strength should be established by the coefficient K defined as the degree of participation of flexural mechanism.The value of K can be determined by conducting regression analysis based on test parameters such as shear-span ratio,axial compression ratio,and reinforcement ratio,etc.Using a database of 152 reinforced concrete shear wall tests,the ultimate bearing capacity of the members was calculated with the proposed method.The results were then compared and analyzed against the predictions of Chinese,American,and Japanese codes,as well as models proposed by researchers.The study shows that design codes are overall conservative in calculations of shear wall elements,while the formulas proposed by researchers have improved in accuracy but have a high degree of discretization.In contrast,the prediction using the mixed flexure-diagonal compression mechanism model was well predicted with a mean value of 1.04 and a coefficient of variation of 0.13,which shows good adaptability to small and medium shear-span ratio shear wall specimens failed by shear,flexure or flexure-shear.关键词
钢筋混凝土剪力墙/弯曲-斜压复合传力机制/数据库/正截面理想受弯承载力/水平承载力Key words
reinforced concrete shear walls/a mixed flexure-diagonal compression mechanism/database/ideal flexural strength/lateral load-carrying capacity分类
建筑与水利引用本文复制引用
ZHANG Jinling,PENG Youkai..基于弯曲-斜压复合传力机制的RC剪力墙水平承载力计算方法[J].北京建筑大学学报,2025,41(6):59-65,7.基金项目
工信部科技计划项目(TC240HE75). （TC240HE75）
