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装配式钢结构采用工厂化的生产和模块化的安装,具有很高的施工效率,该结构体系不同于传统的钢框架,其地震作用下的动力性能尚待研究。对装配式斜支撑节点钢框架和装配式无支撑节点钢框架进行7度罕遇地震作用下的弹塑性动力时程分析,结果表明:斜支撑节点使结构整体刚度大幅提高,在7度罕遇地震作用下结构变形显著减小,在人工波作用下,结构顶点位移最大值减小达56.6%,层间位移角最大值减小达61.3%,塑性铰大部分出现在桁架梁腹杆部位,立柱处于弹性阶段。
Assembled steel structure using factory production and modular installation, with high construction efficiency, the structural system is different from the traditional steel frame, the seismic performance of the dynamic properties yet to be studied. The elasto-plastic dynamic time-history analysis of the assembled skew-supported node steel frame and the fabricated unsupported steel frame under the condition of rare earth earthquake of 7 degrees shows that the skeletal support node greatly increases the overall stiffness of the structure, Under the action of earthquake, the maximum deformation of the structure decreases by 56.6% and the maximum displacement of the layer decreases by 61.3%. Most of the plastic hinge appears on the web part of the truss girder, Column in a flexible stage.