空腹桁架钢框架研究毕业论文

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1、空腹桁架钢框架研究毕业论文目录摘要··································································ⅢABSTRACT····························································Ⅳ1前言1.1空腹桁架钢框架的特点及研究意义········································11.2空腹桁架钢框架的研究现状··············································31.3现有研究的不足及本文的研究内容··

2、······································52空腹桁架钢框架有限元建模及验证2.1引言··································································82.2弹塑性分析方法简介···················································122.3ANSYS在空腹桁架钢框架弹塑性分析中的应用····························18IV2.4ANSYS分析模型正确性检验·······························

3、·············202.4.1ANSYS分析模型概述················································212.4.1.1ANSYS分析模型概述·············································212.5小结·································································213空腹桁架钢框架受力性能有限元分析3.1引言·························································

4、········233.2空腹桁架钢框架与普通钢框架力学性能对比·······························263.3影响空腹桁架钢框架力学性能的因素·····································294空腹桁架钢框架极限承载力试验研究4.1试验目的·····························································304.2模型设计依据·························································324.3IV试验概况··········

5、···················································354.4试验过程描述·························································384.5试验结果·····························································454.6小结·································································555结论·······························

6、·································56谢辞··································································57参考文献·······························································58附录··································································59IVIV摘要空腹桁架钢框架是在钢框架的基础上，通过取消框架中间的柱子来增大结构的使用空间，同时为了不增大各

7、个构件的截面尺寸，在框架的隔层增设腹板柱形成空腹桁架与钢框架组合的结构体系。由于在钢框架中增设腹板柱形成空腹桁架结构，进一步增强了结构的水平刚度和竖向刚度，同时提高了结构的整体工作性能，进而实现了结构的大跨度。本文通过大量的算例分析，探讨空腹桁架层的节间数、节间间距、腹板柱的刚度以及结构的跨度对整体结构的受力性能、极限承载力及破坏模式的影响，分析表明：通过合理的桁架层设计，可以有效的提高结构的竖向刚度和水平刚度，以及结构的极限承载力