高强钢组合K型偏心支撑框架结构滞回性能分析

发布时间：2018-05-05 05:34

本文选题：高强钢组合 + K型偏心支撑　；参考：《西安建筑科技大学》2013年硕士论文

【摘要】：偏心支撑结构兼有中心支撑抗侧刚度大的特点和框架结构延性好的优点，在地震作用下抗震性能优越。而高强钢组合的偏心支撑结构又综合了偏心支撑耗能性能好和高强钢的强度高、节省材料的优点。本文首先利用ETABS设计了若干个高强钢组合的偏心支撑框架结构，然后提出在ABAQUS有限元分析软件中利用梁-实体单元相结合的方式建立偏心支撑结构多质点比例加载的模型，并验证模型的准确性，最后取各原型结构的一榀平面框架进行结构的滞回分析。通过与传统的普通钢偏心支撑框架结构对比，表明高强钢组合K型偏心支撑的滞回性能略差，具有结构承载力高且安全性高，，利于震后修复等优点。通过对比不同高度的高强钢组合偏心支撑框架结构的性能，发现楼层高度的增加，高强钢组合偏心支撑结构的双重抗侧力优势进一步得到体现。充分说明了高强钢组合偏心支撑框架结构在实际工程运用中的潜在优势，并在此基础上，提出进一步相关的研究内容。
[Abstract]:Eccentrically braced structure has the advantages of high lateral stiffness of central bracing and good ductility of frame structure. The eccentricity bracing structure combined with high strength steel combines the advantages of good energy dissipation performance of eccentric bracing and high strength of high strength steel to save materials. In this paper, several eccentrically braced frame structures with high strength steel combination are designed by using ETABS, and then a multi-particle proportional loading model of eccentrically braced structure is established by means of the combination of beam-solid element in ABAQUS finite element analysis software. The veracity of the model is verified. Finally, a plane frame of each prototype structure is taken for hysteretic analysis. By comparing with conventional steel eccentrically braced frame structure, it is shown that the hysteretic performance of high strength steel combination K eccentrically braced frame is slightly poor, which has the advantages of high bearing capacity and high safety, and is propitious to post-earthquake repair and so on. By comparing the performance of high strength steel composite eccentrically braced frame structure with different heights, it is found that with the increase of floor height, the double lateral force resistance advantage of high strength steel composite eccentrically braced structure is further reflected. The potential advantages of high strength steel composite eccentrically braced frame structures in practical engineering application are fully explained, and on this basis, further relevant research contents are put forward.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU391

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