摘要
本文通过在压、弯、剪、扭复合受力下14个试件的试验,讨论了构件的破坏形态。根据变角空间桁架模型建立了压、弯、剪、扭强度相关方程,理论值和实验值符合较好。在此基础上,结合《混凝土结构设计规范》,建立了实用抗扭强度计算公式,它也可以用于压、弯、扭共同作用下的抗扭强度计算,计算结果偏于安全。
According to the test results of 14 specimens, the failure modes of R. C. members subjected to the combined action of axial compression, bending, shear, and torsion are discussed. Based on variable-angle truss model, a compression-bending-shear-torsion interaction equation has been developed for such reinforced concrete members. Furthermore, in combination with the Design Code for Concrete Structures(GBJ 10-89), a practical formula for calculating torsional strength which can also be used in calculation of members under the combined action of compression, bending and torsion has been proposed. The results calculated from the interaction equation agree well with the test results.
出处
《土木工程学报》
EI
CSCD
北大核心
1993年第1期20-30,共11页
China Civil Engineering Journal
