装配式结构连接构造及受力性能研究
发布时间：2019-06-15 06:20
【摘要】：本文针对现有的装配式结构连接形式进行总结,包括装配式剪力墙的节点连接和装配式混凝土框架梁-柱节点的连接形式。对比它们的特点和构造,分析它们的优点和不足。对于装配式结构的节点连接,其强度组成应当包括混凝土和钢筋连接。本文对新老混凝土粘结强度理论进行了研究,介绍了新老混凝土粘结模型,总结了国内外学者对新老混凝土粘结机理的研究成果。分析新老混凝土结合面的抗剪强度,包括抗剪性能和承载能力分析。介绍了装配式剪力墙连接节点和装配式框架节点的几种连接形式,其中包括:螺栓连接、机械连接、套筒连接、预留孔浆锚连接、焊接连接、牛腿连接。对这些连接的构造形式进行分析,并介绍了这些连接形式的连接方式和适用范围。用有限元软件abaqus模拟了一个采用扣接箍筋约束金属波纹管连接的装配式剪力墙受往复力模型,进行数据分析。对不同配筋率、轴压比、混凝土强度进模拟,研究其滞回性能、骨架曲线,对结构受力性能进行分析。用有限元软件abaqus模拟了一个榫头-法兰连接的装配式混凝土梁-柱节点,对不同螺栓分布对节点受力性能的影响进行了综合分析。
[Abstract]:In this paper, the existing connection forms of assembled structure are summarized, including the joint connection of assembled shear wall and the connection form of assembled concrete frame beam-column joint. Compared with their characteristics and structures, their advantages and disadvantages are analyzed. For the joint connection of assembled structure, its strength composition should include concrete and steel bar connection. In this paper, the bond strength theory of new and old concrete is studied, the bond model of new and old concrete is introduced, and the research results of bond mechanism of new and old concrete by scholars at home and abroad are summarized. The shear strength of new and old concrete joints is analyzed, including shear performance and bearing capacity. This paper introduces several connection forms of assembled shear wall connection joint and assembly frame joint, including bolt connection, mechanical connection, sleeve connection, reserved hole paste anchor connection, welding connection and cow leg connection. The construction forms of these connections are analyzed, and the connection modes and applicable scope of these connection forms are introduced. The finite element software abaqus is used to simulate a compound force model of assembled shear wall with clasped hoop to restrain metal bellows connection, and the data analysis is carried out. The hysteretic properties and skeleton curves of concrete with different reinforcement ratio, axial compression ratio and concrete strength are studied, and the mechanical properties of the structure are analyzed. The finite element software abaqus is used to simulate an assembled concrete beam-column joint with tenon-flange connection. The influence of different bolt distribution on the mechanical properties of the joint is comprehensively analyzed.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU37
，
本文编号：2500028
[Abstract]:In this paper, the existing connection forms of assembled structure are summarized, including the joint connection of assembled shear wall and the connection form of assembled concrete frame beam-column joint. Compared with their characteristics and structures, their advantages and disadvantages are analyzed. For the joint connection of assembled structure, its strength composition should include concrete and steel bar connection. In this paper, the bond strength theory of new and old concrete is studied, the bond model of new and old concrete is introduced, and the research results of bond mechanism of new and old concrete by scholars at home and abroad are summarized. The shear strength of new and old concrete joints is analyzed, including shear performance and bearing capacity. This paper introduces several connection forms of assembled shear wall connection joint and assembly frame joint, including bolt connection, mechanical connection, sleeve connection, reserved hole paste anchor connection, welding connection and cow leg connection. The construction forms of these connections are analyzed, and the connection modes and applicable scope of these connection forms are introduced. The finite element software abaqus is used to simulate a compound force model of assembled shear wall with clasped hoop to restrain metal bellows connection, and the data analysis is carried out. The hysteretic properties and skeleton curves of concrete with different reinforcement ratio, axial compression ratio and concrete strength are studied, and the mechanical properties of the structure are analyzed. The finite element software abaqus is used to simulate an assembled concrete beam-column joint with tenon-flange connection. The influence of different bolt distribution on the mechanical properties of the joint is comprehensively analyzed.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU37
，
本文编号：2500028
本文链接：https://www.wllwen.com/jianzhugongchenglunwen/2500028.html
