一、柱端无剪力抗弯刚度和弯矩传递系数对称单跨刚架的一部分如图1a。柱端 A 和 a 发生相等的转角θ_A,同时发生相等的水平位移⊿,但不产生剪力。当这两个柱端发生变形时,刚架的其余各节点都处于能转动和侧移的弹性约束状态。这时,节 1. A part of a symmetrical single-span rigid frame without shear bending stiffness and bending moment transfer coefficient at the column end is shown in Fig. 1a. Column ends A and a have equal angles θ_A and equal horizontal displacements ⊿ occur at the same time, but no shear occurs. When the two column ends are deformed, the rest of the rigid frame is in an elastically constrained state that can rotate and move sideways. At this time, the festival