目前国内外对钢结构抗震性能的研究。大多集中在刚性连接的节点或构件受力性能上。论文从结构的整体受力性能出发，研究半刚性连接钢框架在循环荷载作用下的受力性能，以更好地协调结构承载力、刚度和延性三者的关系，对于指导设计工作具有一定的现实意义。 考虑材料非线性和几何非线性，用有限元方法对半刚性连接钢框架的受力性能进行了研究，真实地模拟了其在多种情况下的受力状态。通过对多个系列试件的计算与分析，主要研究了半刚性连接钢框架在循环荷载作用下的滞回性能、破坏机理，以及框架轴压比、高跨比、端板厚度和框架节点形式等参数对半刚性连接钢框架受力性能的影响。研究结果表明：半刚性连接钢框架在循环荷载作用下框架柱端部位会首先局部屈曲，然后是框架柱脚屈曲形成塑性铰，在结构设计中应保证框架梁端焊缝的有效连接，通过构造措施保证基础对柱脚的良好约束；在竖向和水平荷载的共同作用下钢框架P-DELTA效应十分明显，建议将轴压比控制在0.6左右；增大框架的高跨比，梁对柱的约束作用也随之减小，造成结构的抗侧移刚度减小，降低了结构的承载力，可能出现整体失稳；端板厚度的增加对提高试件抗震性能比较明显，但随着端板厚度的增加，滞回曲线的饱满度略趋增加，但这种趋势越来越弱，选择合理的端板厚度可多方面满足梁柱节点的要求，另一方面可以节约钢材。 论文所建立的有限元模型考虑问题较为全面，精度较高，能够真实的模拟半刚性连接钢框架在循环荷载作用下的受力行为。研究工作和得出的结论对于指导工程设计具有一定的参考价值，为进一步研究钢框架的抗震性能打下了良好的基础。

At present, the seismic-resistant performance has been studied. However, most of these researches focus on the stress performance of the component and joints. Therefore, this paper embarks from the frame’s whole seismic-resistant performance, thoroughly and systematically studies the various parameters’ influence to the seismic-resistant performance of the steel-frame constructions with semi-rigid connection,by even better coordinates the relationship between the structure’s strength, rigidity and ductility has the extremely important practical significance regarding the instruction design work. This paper applies material nonlinear and geometry nonlinear finite element method to systematically analyze the overall behaviors of steel-frame constructions the semi-rigid connection under cyclic load. The load-bearing condition of the steel frames construction with semi-rigid connection in a variety of situations was really simulated through the calculation and analysis of many series test samples. The major parameters including constant axial compression ratios,length of beam, terminal plate thickness and different frame joint are studied. The main conclusions are: The steel frame witn semi-rigid connect under the cyclic load function in the frame trestle end spot the first local buckling, will then be the frame trestle foot flexure forms the plastic hinge; In the structural design should guarantee that the frame Liang end weld the effective connection, through the structure measure guarantee foundation paired columns foot's good restraint. The steel frame P-Δ effect is very obvious in vertical and under the horizontal load's combined action, suggested that compares the control the axis pressure about 0.6.Increaseing terminal plate thickness to enhances the test sample earthquake resistance performance to be quite obvious, looking from entire stagnates the curve is quite full, but along with increase of the terminal plate thickness, stagnates the curve the full fullness slightly to hasten increases, but this tendency is getting more and more weak. Therefore choice reasonable terminal plate thickness may satisfy the beam column joints variously the request, and may save the steel products. This article establishes the finite element models consideration question is more comprehensive, the precision is high, can real simulation the steel frame with semi-rigid connect under the cyclic load behavior.The study analyzing the semi-rigid connection steel-frame constructions’ load-bearing performance in a rather comprehensive and systematic way are very useful for revising design specifications and guiding design of engineering. This paper will play a basic role in the further study on steel-frame constructions and analyzing the seismic-resistant behavior of whole structure.