Experimental Database on Resistance of Hybrid Joints with High- strength Bolts and Epoxy Adhesive

H. Moriyama, Takashi Yamaguchi
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Abstract

High-strength frictional bolted joints is a usual connecting method of steel members at a construction site. Epoxy putty is also used to adjust the unevenness of corroded member’s surface in a repair with bolted connections. Thus, the repair is often conducted by hybrid joint with epoxy adhesives and high-strength bolts. The conversion to hybrid joints is also effective in terms of the performance enhancement. Therefore, this paper surveys experimental data of the hybrid joints in Japan to summarize essential pieces of information. Surveyed results show that the relationships between the average shear strength of hybrid joints and average contact pressure on the faying surface indicates a strong correlation. Therefore, hybrid joints have the strength characteristic of adhesive joints rather than frictional bolted joints. Moreover, approximate equations which can evaluate the peeing resistance of the joint composed of several bolts was proposed.
高强度螺栓与环氧胶粘剂混合连接阻力试验数据库
高强度摩擦螺栓连接是施工现场常用的钢构件连接方式。环氧腻子也被用来调整锈蚀构件表面的不平整与螺栓连接修复。因此,通常采用环氧胶粘剂与高强度螺栓的混合连接进行修复。转换为混合关节在性能增强方面也是有效的。因此,本文通过调查日本混合接头的实验数据,总结出必要的信息。调查结果表明,混合节理的平均抗剪强度与接触面平均接触压力之间存在较强的相关性。因此,混合接头具有粘接接头而非摩擦螺栓接头的强度特性。此外,还提出了计算多个螺栓组成的连接的阻力的近似方程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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