节点文献

静力弹塑性分析方法在煤矸石混凝土框架抗震设计中的应用研究

Study of Push-over Method’s Apllication to the Antl-Selsmic Design of Self-Combu-Sted Gangue Relnforced Concrete Frame

【作者】 解宁

【导师】 李承铭;

【作者基本信息】 太原理工大学 , 结构工程, 2003, 硕士

【摘要】 本文的研究目的是使用静力弹塑性分析方法(Push-over方法)研究煤矸石混凝土框架的弹塑性极限变形问题。本文依据静力弹塑性分析方法的原理,编写了关于钢筋混凝土框架的荷载-位移非线性曲线关系的计算程序,其中考虑了框架的二阶效应的影响,对两种采用不同加载制度的共11榀煤矸石混凝土框架进行了荷载-位移全过程非线性计算分析,通过分析得到的计算结果,说明了本文程序的准确性,从而验证了静力弹塑性分析方法在实际抗震设计中的可行性。 通过比较这11榀煤矸石混凝土框架由本文方法得到的计算值与其试验值,总结了本文方法产生误差的一些相关原因,讨论了煤矸石混凝土框架刚度折减系数的取值问题,对比其它非线性分析方法,表明了本文方法的简便性和准确性,进而预测了本文所使用方法在未来工程实际中的可用性和适用性。一11一太原理工大学硕_I:学位论文 使用本文程序另外模拟计算了30榻煤研石混凝土框架,进一步分析了轴压比和配箍率对煤研石混凝土框架柱曲率延性的影响,编写程序计算了30根煤研石混凝土框架柱,对煤研石混凝土框架柱的侧向变形能力进行了研究,分析了柱塑性铰的转动能力,导出了煤研石混凝土框架柱的曲率延性系数与配箍率的关系式,分析了煤研石混凝土框架柱的曲率延性系数与框架柱相对侧向位移的关系,讨论了煤研石混凝土框架柱在不同轴压比下最小配箍率的取值问题。 最后得出结论,本文使用的考虑一些简化计算假定的静力弹塑性分析方法结果比较准确、合理,很适宜在实际工程计算中推广使用。

【Abstract】 The researching aim of this paper is using Push-over method to research the elastic-plastic ultimate deformation of Self-combusted Gangue Reinforced Concrete (SGRC) frame. On the basis of the fundamental principle of Push-over method, together with some basic assumptions, this paper edit computer program of the loading-displacement skeleton curves of the SGRC frame, considering P-Delta effect. Then this paper use this program to calculate and analysis the loading-displacement nonlinear relations of eleven SGRC frames, which are in two different loading modes. The results calculated by computer are in good agreement with experimental values, so this program is accurate, and the Push-over method is practicable analytical method in actual anti-seismic design.Combined with the experimental values of eleven SGRC frames, the results calculated by computer program of this paper have some errors, so this paper analysis some relative reasons which can cause error. The proper ascertainment of the value of stiffness reduction factor of the components of SGRC frames is discussed.By contrasting Push-over method with some other nonlinear analytical methods, this paper indicates this method in this paper is a simple and convenient method, and this method is practicable and applicable in future engineering.This paper uses the computer program to calculate other thirty SGRC frames, and further analysis the effects of different axial loading ratios and volumetric ratios of hoops to the curvature ductility of SGRC frame column. Then, this paper edits other computer program to calculate thirty SGRC frame columns, and researches the drift capacity of SGRC frame column, and analysis the turning capacity of frame column’ s plastic hinge. Then the relational expression of the curvature ductility factor and ratio of hoops of SGRC frame columns is derived. This paper analysis the relation of the curvature ductility factor and the relative drift of SGRC frame columns, and discuss the question of the minimum values of ratios of hoops of SGRC frame column at different axial load ratios.In a word, the Push-over method in this paper, which has some simple assumptions, is accurate and rational, and is fitted to application and dissemination in actual engineering.

  • 【分类号】TU375.4
  • 【下载频次】134
节点文献中: 

本文链接的文献网络图示:

本文的引文网络