摘要
在冲切强度试验的基础上，进一步分析了钢筋砼板的冲切破坏机理，认为冲切破坏是剪力与弯矩联合作用下的一种破坏形态．与破坏机理一致，本文提出了一种考虑弯曲变形影响的冲切破坏模式．应用极限平衡理论导出冲切强度理论解，计算式中体现了板面抗弯钢筋对冲切强度的作用．理论计算值与209个试验结果相比，其均值与方差分别为1.018和0.1 25．
Based on the tests of punching shear, the mechanism of failure is furtherly studied. The punching shear is a kind of failure that is under shear and moment. According to this mechanism, a new collapse mechanism is presented which has put the effect of flexural deformation under consideration. By applying the theory of ultimate balance, the theoretical solution of punching strength is derived. The calculative formula has embodied the effect of the longitudinal bar to the punching strength. Then the calculative value is compared with the 209 experimental results. The mean and the variance are 1.018 and 0. 125 respectively.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
1992年第2期65-71,共7页
Journal of Fuzhou University(Natural Science Edition)
关键词
冲切强度
破坏模式
钢筋混凝土
板
reinforced concrete slabs
punching strength
collapse mechanism
theory of ulti-mate balance
