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Abstract

The construction technology of prefabricated bridges features environmental protection, noise reduction, construction quality improvement, and construction efficiency enhancement. The reliable connection of the main load-bearing steel bars in prefabricated components is the key to ensuring the sound performance of the prefabricated structure. Grouting sleeve connection is an important way of connecting steel bars in prefabricated structures. This paper proposed the construction of a new type of resistance ring grouting sleeve, and analyzed the working performance of the steel bar grouting sleeve connection in the working conditions of uniaxial tension and reciprocating tensile compression by conducting finite element numerical simulation. The results reveal that the mechanical performance of various components of the new resistance ring grouting sleeve in uniaxial tension conditions meets the requirements of the specifications. After 20 cycles of high-stress reciprocating tensile compression, the total residual deformation is 0.24 mm, which belongs to the Class I joint. As the cyclic loading continues, the energy consumption and rigidity of the grouting material decrease after the tenth cycle, and the grouting material forms a relatively stable and reliable path for load transmission. At this time, the maximum third principal stress of the grouting material under tensile compression tends to stabilize, and the grouting material forms a good force transmission combination with the steel bars and sleeve, with generally sound performance of steel bar sleeve components.

Publication Date

1-18-2024

DOI

10.14048/j.issn.1671-2579.2023.06.021

First Page

133

Last Page

139

Submission Date

March 2025

Reference

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