考虑人行激励影响的钢筋混凝土框架教学楼动力性能研究

发布时间：2018-05-10 13:52

本文选题：人行激励 + 钢筋混凝土　；参考：《湖南大学学报(自然科学版)》2017年07期

【摘要】：对钢筋混凝土框架教学楼结构进行人行激励实测试验.考虑楼梯对主结构的作用,建立不考虑填充墙影响和考虑填充墙影响的两种有限元模型,通过计算自振周期与实测自振周期进行对比,修正两种有限元模型.通过不同的活载取值分别考虑静止人群荷载、空载和人行激励荷载3种工况,采用IDA分析方法进行动力计算,对比分析上述两种模型在3种工况下的地震动力响应,研究填充墙对结构有限元模型动力性能的影响.计算结果表明,对于考虑人行激励影响的钢筋混凝土框架教学楼结构进行IDA分析时需要考虑填充墙的影响;结构在空载工况下最为有利,静止人群荷载工况次之,人行激励荷载工况下最为不利.
[Abstract]:The practical test of pedestrian excitation of reinforced concrete frame teaching building structure is carried out. Considering the effect of staircase on the main structure, two finite element models are established, which do not consider the effect of infilled wall and the influence of infilled wall. The two finite element models are modified by comparing the calculated natural vibration period with the measured natural vibration period. The dynamic response of the above two models under the three conditions of static crowd load, no-load and pedestrian excitation load is calculated by using IDA analysis method, and the seismic dynamic response of the two models under three working conditions is compared and analyzed according to the different live load values. The effect of infilled walls on the dynamic performance of finite element model is studied. The results show that the influence of the infill wall should be considered in the IDA analysis of the reinforced concrete frame building structure considering the influence of pedestrian excitation, and the structure is most favorable under the no-load condition, followed by the static crowd load condition. Under the condition of pedestrian excitation load, it is most disadvantageous.
【作者单位】：湖南大学土木工程学院;基准方中建筑设计院;
【基金】：教育部博士点基金资助项目(20120161110022)~~
【分类号】：TU375.4

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