分离式钢管套筒节点的试验研究及设计建议

发布时间：2018-06-10 18:30

本文选题：新型外套筒钢节点 + 非线性有限元分析　；参考：《昆明理工大学》2017年硕士论文

【摘要】：自2013年来,中国钢材产量以7.79亿吨位居世界第一[1]。钢框架结构在越来越多的领域得到了前所未有的发展,钢节点设计作为钢结构设计中的一个关键点,国内外很多学者都对此进行了一系列研究,并提出了很多种钢节点类型。圆钢管柱由于各个方向的截面惯性矩相同,以及其经济效益高,施工快捷方便及抗震性能优越等特点在建筑设计中得到广泛的运用。云南省位于云贵高原,山区地势起伏不平且地震多发,钢材运输及安装条件相对较差。基于云南省地质地貌情况及已有的国内外专家学者研究成果,本课题提出了一种新型的便于工地安装运输的节点"分离式外套筒钢管柱-H型钢梁节点",对此节点进行往复循环加载试验,并对试验结果进行分析,研究试件加载过程荷载-位移曲线,及参数对试件性能的影响。首先制作3个十字形外套筒钢管柱-H型钢梁节点分别对梁端进行循环荷载加载试验,观察记录加载过程中三根构件节点处变形情况及梁翼缘破坏情况。对各个节点的荷载-位移滞回曲线、刚度退化,节点耗能进行分析,对比分析套筒厚度变化对节点受力性能的影响利用有限元软件ANSYS15.0对本课题所研究的新型节点进行建模分析,对比试验结果和有限元分析结果,证明了 ansys软件的可靠性,分析新型外套筒节点各参数对节点性能的影响,提出一个套筒最小厚度设计公式供后续设计及理论研究人员参考,在论文最后提出一个设计用表,供设计人员进行此钢节点设计选用。
[Abstract]:Since 2013, China's steel production at 779 million tons ranked first in the world. Steel frame structure has been developed in more and more fields. As a key point in steel structure design, many scholars at home and abroad have carried out a series of research and put forward many types of steel joints. Round steel pipe column is widely used in architectural design because of the same moment of inertia in each direction, high economic benefit, convenient construction and excellent seismic performance. Yunnan Province is located on the Yunnan-Guizhou Plateau, the mountain area is rough and earthquake prone, and the steel transportation and installation conditions are relatively poor. Based on the geological and geomorphological situation of Yunnan Province and the existing research results of experts and scholars at home and abroad, In this paper, a new type of joint, which is convenient for site installation and transportation, is proposed, which is a split type steel tubular column H-type steel beam joint with outer sleeve. The reciprocating cyclic loading test is carried out on this joint, and the test results are analyzed. The load-displacement curve during loading and the influence of parameters on the performance of the specimen are studied. At first, three steel tubular column H-type steel beam joints with cross-shaped outer sleeve were made to carry out cyclic loading tests on the end of the beam respectively, and the deformation at the joint of the three members and the failure of the flange of the beam were observed and recorded during the loading process. The load-displacement hysteretic curves, stiffness degradation and joint energy consumption of each node are analyzed, and the effects of sleeve thickness on the joints' mechanical performance are compared and analyzed by using ANSYS 15.0, a finite element software, is used to model and analyze the new type of joints studied in this paper. By comparing the test results with the finite element analysis results, the reliability of the ansys software is proved. The influence of the parameters of the new type outer sleeve joints on the performance of the joints is analyzed, and a formula for the design of the minimum thickness of the sleeve is put forward for the reference of the subsequent design and the theoretical researchers. At the end of the paper, a design table is put forward for the design of the steel joint.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU392.3

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