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Abstract

By conducting finite element simulation, this paper analyzed the influence of the cavity volume and cavity location on the pullout and shear resistance of shear nails, and provided scientific basis for defining the error control range of shear nail construction. Based on the existing experimental results, a finite element analysis model was built. The final results show that the maximum pullout resistance bearing capacity of the shear nails remains basically unchanged with the increasing volume of the cavity around the head of the shear nails. When the position of a cavity with the same volume moves downward along the nail length from the nail head, the pullout resistance bearing capacity will decrease. Additionally, when the cavity position is within 1/3 of the shear nail length from the shear nail head, the decrease in pullout resistance bearing capacity is the most significant. When the position of the cavity of the same size moves from the nail head along the nail length direction to about 1/6 of the nail length, the shear resistance bearing capacity of the shear nail gradually increases, and remains stable from 1/6 to the nail tail. Therefore, the quality inspection standards for the concrete pouring process in the pouring area of shear nails should be more targeted.

Publication Date

11-8-2022

DOI

10.14048/j.issn.1671-2579.2022.05.018

First Page

97

Last Page

101

Submission Date

April 2025

Reference

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