预制装配式钢框架柱拼接节点力学性能理论分析
发布时间：2018-08-20 20:10
【摘要】：传统钢框架柱柱连接常采用焊接连接方式,然而焊接连接方式存在着对焊接技术、现场施工环境要求高,容易产生脆性破坏等缺陷,从而当结构大量使用焊接节点时其检测成本和安全隐患均有所增加。随着预制装配式建筑体系的提出及广泛应用,焊接节点因其自身局限性以不再适应预制装配式建筑体系的需求,拼接节点因其具有安装方便,力学性能好等优势成为预制装配式建筑体系中柱柱连接的主要方式。本文研究的是预制装配式建筑体系中常用的方钢管和H型钢两种结构构件的柱拼接节点。其中方钢管柱对穿螺栓拼接节点由方钢管柱、内套筒、对穿螺栓及高强螺栓拼接而成,H型钢柱高强螺栓拼接节点由H型钢柱、U型钢拼接板及高强螺栓拼接而成。本文以上述两种节点为研究对象,首先利用等强度设计方法对节点进行静力计算,设计出合理的螺栓数目及连接件尺寸；其次利用ANSYS有限元分析软件对设计出的两种节点的标准试件进行静力分析及滞回性能分析观察节点的承载力变化及耗能能力,并通过改变方钢管柱对穿螺栓拼接节点内套筒长度及厚度、H型钢柱高强螺栓拼接节点拼接板腹板、翼缘板位置厚度、拼接板长度以及试件轴压比等参数,对改变参数后的新试件进行静力分析和滞回性能分析,得出各试件的荷载-位移曲线、滞回曲线、骨架曲线及等效粘性阻尼系数等数据,通过对数据的分析探讨内套筒及拼接板尺寸对节点力学性能的影响变化规律；最后,通过总结内套筒及拼接板尺寸对节点力学性能影响的变化规律,给出了内套筒及拼接板尺寸的合理设计建议。
[Abstract]:The traditional steel frame column connection often adopts the welding connection mode, however, the welding connection mode has some defects, such as welding technology, high requirement of the field construction environment, easy to produce brittle failure, etc. Therefore, when the welded joints are used extensively, the detection cost and safety risks are increased. With the development of prefabricated building system and its wide application, welding joints are no longer suitable for the needs of prefabricated building systems because of their own limitations. The advantages of good mechanical properties become the main way of column connection in prefabricated building system. In this paper, the column splicing joints of square steel pipe and H-section steel are studied in prefabricated building system. The splicing joint of square steel column and piercing bolt is made up of square steel pipe column, inner sleeve, pair bolt and high strength bolt. The high strength bolt splicing joint of H section steel column is made up of H section steel column U section steel splice board and high strength bolt. In this paper, the two kinds of joints mentioned above are taken as the research object. Firstly, the static calculation of the joints is carried out by using the equal strength design method, and the reasonable number of bolts and the size of the connectors are designed. Secondly, the static analysis and hysteretic performance analysis of the standard specimens of two kinds of joints are carried out by using the ANSYS finite element analysis software to observe the change of the bearing capacity and the energy dissipation capacity of the joints. By changing the length and thickness of the sleeve in the splicing joint of square steel pipe column, the thickness of the flange plate, the length of the splice plate and the axial compression ratio of the specimen, the thickness of the splicing plate, the thickness of the flange plate, the length of the splicing plate and the axial compression ratio of the specimen are changed. The static analysis and hysteretic performance analysis of the new specimen after changing the parameters are carried out, and the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient of each specimen are obtained, such as the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient, etc. Through the analysis of the data, the influence of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is discussed. Finally, the variation of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is summarized. The reasonable design suggestions for the dimensions of inner sleeve and splice board are given.
【学位授予单位】：山东建筑大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU391
本文编号：2194851
[Abstract]:The traditional steel frame column connection often adopts the welding connection mode, however, the welding connection mode has some defects, such as welding technology, high requirement of the field construction environment, easy to produce brittle failure, etc. Therefore, when the welded joints are used extensively, the detection cost and safety risks are increased. With the development of prefabricated building system and its wide application, welding joints are no longer suitable for the needs of prefabricated building systems because of their own limitations. The advantages of good mechanical properties become the main way of column connection in prefabricated building system. In this paper, the column splicing joints of square steel pipe and H-section steel are studied in prefabricated building system. The splicing joint of square steel column and piercing bolt is made up of square steel pipe column, inner sleeve, pair bolt and high strength bolt. The high strength bolt splicing joint of H section steel column is made up of H section steel column U section steel splice board and high strength bolt. In this paper, the two kinds of joints mentioned above are taken as the research object. Firstly, the static calculation of the joints is carried out by using the equal strength design method, and the reasonable number of bolts and the size of the connectors are designed. Secondly, the static analysis and hysteretic performance analysis of the standard specimens of two kinds of joints are carried out by using the ANSYS finite element analysis software to observe the change of the bearing capacity and the energy dissipation capacity of the joints. By changing the length and thickness of the sleeve in the splicing joint of square steel pipe column, the thickness of the flange plate, the length of the splice plate and the axial compression ratio of the specimen, the thickness of the splicing plate, the thickness of the flange plate, the length of the splicing plate and the axial compression ratio of the specimen are changed. The static analysis and hysteretic performance analysis of the new specimen after changing the parameters are carried out, and the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient of each specimen are obtained, such as the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient, etc. Through the analysis of the data, the influence of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is discussed. Finally, the variation of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is summarized. The reasonable design suggestions for the dimensions of inner sleeve and splice board are given.
【学位授予单位】：山东建筑大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU391
【引证文献】
相关会议论文 前1条
1 赵永杰;陶怡;;高强螺栓连接的构造及计算[A];第三届全国钢结构工程技术交流会论文集[C];2010年
，本文编号：2194851
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