地震作用下钢框架结构的动力性状研究

发布时间：2018-04-24 08:19

本文选题：钢框架结构 + 地震作用　；参考：《中国矿业大学（北京）》2013年博士论文

【摘要】：本文分析了钢框架结构在地震作用下的位移响应及分布规律，提出响应的位移控制措施，证明了结构在采用中间层下部布置支撑而中间层上部采用纯框架结构，对控制其在地震作用下的位移效果略好于结构整体均布置支撑的方案，且更为经济。分析了钢框架结构节点在地震作用下的力学响应和抗震性能。在进行竖向振动荷载下钢框架缩尺子结构的力学行为试验的基础上，结合1:1子结构的数值计算研究其在竖向振动载下的力学响应。提出了以结构构件的地震内力和组合内力比值作为依据对结构构件在不同地震设防烈度下多遇和罕遇地震中对构件进行延性分级的方法，并对框架梁、柱进行延性分级，给出不同构件延性级别的具体数值。
[Abstract]:In this paper, the displacement response and distribution law of steel frame structure under earthquake action are analyzed, and the displacement control measures of the response are put forward. It is proved that the structure is supported by the lower middle layer and the pure frame structure is used in the upper middle layer. The effect of controlling its displacement under earthquake action is better than that of the whole structure with support arrangement, and it is more economical. The mechanical response and seismic behavior of steel frame joints under earthquake are analyzed. Based on the experimental results of mechanical behavior of steel frame shrunk gauge structure under vertical vibration load, the mechanical response of 1:1 substructure under vertical vibration load is studied. Based on the ratio of seismic internal force and combined internal force of structural members, the method of ductility classification of structural members in different earthquake fortification intensity is put forward, and the ductility classification of frame beams and columns is carried out. The specific values of different component ductility levels are given.
【学位授予单位】：中国矿业大学（北京）
【学位级别】：博士
【学位授予年份】：2013
【分类号】：TU391;TU311.3

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