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现行框排架结构主厂房设计中仍保留了用横向单榀平面模型进行拟静力分析设计的传统方法,结构设计的准确性和可靠度相比于三维计算模型的动力分析偏差较大,正确的力学模型与合理的空间整体分析方法是精确设计的前提。以某型钢混凝土柱-钢筋混凝土分散剪力墙框排架结构为原型建三维杆系有限元模型,通过对比框排架结构在单双向主轴加载、角度变换加载及扭转平动一致激励下结构动力反应的差异,着重阐述了此类大型不规则工业建筑在进行多维时程分析时加载制度对其分析结果的影响。
The traditional method of quasi-static analysis and design using transverse single-ridge plane model is still retained in the design of the main frame of the existing frame-and-frame structure. The accuracy and reliability of the structural design are larger than the dynamic analysis of the three-dimensional calculation model, The mechanical model and a reasonable method of spatial analysis is the premise of accurate design. A three-dimensional finite element model of the three-dimensional bar was built with a steel reinforced concrete column-reinforced concrete shear wall framing as the prototype. Through contrast frame-framed structure, under single-directional spindle loading, angle transformation loading and torsional translational dynamic excitation, The differences between the two methods are mainly discussed. The influence of the loading system on the analysis results of multi-dimensional time-history analysis of such large-scale irregular industrial buildings is highlighted.