钢-混凝土组合梁中栓钉的非线性受力特性分析

doi:10.11896/cldb.24080143

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Abstract To thoroughly investigate the nonlinear shear behavior of stud connectors in steel-concrete composite beams, this study systematically analyzes the force mechanism and failure modes of studs at various stages of loading based on the elastic foundation beam theory. By utilizing this theory, differential equations of the deflection curve for studs in both the elastic deformation stage and the plastic compression stage were established. Additionally, formulas for calculating the shear resistance, stiffness, and slip of the studs were proposed. The accuracy of these formulas and the applicability of the proposed load-displacement trilinear constitutive model were validated by comparing the calculated results, finite element simulation values, and relevant literature data. The results indicate that the trilinear load-displacement constitutive model proposed in this work can accurately describe the mechanical behavior of stud shear connectors. Specifically, it shows higher precision and applicability in predicting stud bearing capacity and slip curves, with a discrepancy of 8.05% between the theoretical shear resistance and the experimental values. Compared to other standards and similar literature, the proposed formulas demonstrate a closer match to experimental results. The theoretical formulas presented in this study can be used for the preliminary determination of the shear performance of stud connectors and provide theoretical and technical support for the application and design of studs in steel-concrete composite structures.

Key words： stud shear connector shear capacity load-slip curve numerical analysis

Published: 10 October 2025 Online: 2025-09-24

CLC number:

TU398.9

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	YU Bo
	LIN Pengzhen
	HE Zhigang

Cite this article:

YU Bo,LIN Pengzhen,HE Zhigang. Analysis of Mechanical Properties of Stud Shear Parts in Steel-Concrete Composite Beams[J]. Materials Reports, 2025, 39(19): 24080143-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24080143 OR https://www.mater-rep.com/EN/Y2025/V39/I19/24080143

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