到目前为止,人们在设计现浇框架梁柱节点时,多以梁的受剪破坏机理或桁架破坏机理为基础。对普通常用的节点而言,梁的机理方法常是保守的。由于不考虑混凝土的作用,桁架机理方法需要大量的横向钢筋。本文以压杆破坏机理为基础,以美国、日本、新西兰、加拿大、苏联和我国的大量试验结果为依据,提出了在单调荷载和低周反复荷载作用下,节点抗剪强度的计算方法。所提出的计算公式考虑了混凝土的强度、几 So far, people design the cast-in-place frame beam-column joints based on the shear failure mechanism of the beam or the truss failure mechanism. For common and commonly used nodes, the mechanism of beams is often conservative. Due to the fact that concrete is not considered, the truss mechanism method requires a large amount of transverse reinforcement. Based on the failure mechanism of pressure bar and based on a large number of test results in the United States, Japan, New Zealand, Canada, the Soviet Union and China, this paper proposes a method for calculating the shear strength of joints under the action of monotonic loads and low cyclic reversed loads. The proposed formula takes into account the strength of the concrete, several