Research on compression-bending behavior of cold-formed thin-walled steel framing composite wall stud with sprayed lightweight mortar

被引：0

作者：

Li K. ^{[1
,2
]}

Hao J. ^{[1
]}

Tian L. ^{[1
]}

Zhao L. ^{[1
]}

Wang Y. ^{[1
]}

Zhao Q. ^{[3
]}

机构：

[1] School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an

[2] China Railway First Survey & Design Institute Group Co., Ltd, Xi'an

[3] Guangzhou CRUPE Systems Building Materials Co., Ltd, Guangzhou

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2016年 / 37卷 / 11期

关键词：

Cold-formed thin-wall steel framing composite wall; Compression-bending behavior; Nonlinear finite element analysis; Sprayed lightweight mortar; Static test; Stud;

D O I：

10.14006/j.jzjgxb.2016.11.013

中图分类号：

学科分类号：

摘要：

The cold-formed thin-walled steel framing composite wall with sprayed lightweight mortar, in which polystyrene boards were placed in region of the cold-formed thin-walled steel frame and sprayed lightweight mortar was used outside the frame of the wall, was presented in this paper. Through the full-scale tests of three cold-formed thin-walled steel framing composite wall with sprayed lightweight mortar under compression-bending loading, the failure process, bearing capacity and failure mode were analyzed. The results show that the failure mode of the cold-formed thin-walled steel framing composite wall with sprayed lightweight mortar is tension flange yielding in the middle of the stud. Owing to the support of lightweight mortar, wall studs with sprayed lightweight mortar, which improves the load carrying capacity and bending stiffness greatly, have good compression-bending behavior. The simulation of the mechanical performance of the test model with ANSYS considering material, geometry and contact nonlinearity was carried out. The simulation results of the nonlinear finite element method agree with the test results. The T-shaped cross-section composite stud was regarded as the calculation model, and the calculation formula for the prediction of compression-bending capacity of composite stud cross section was put forward. This formula considers the bond and slippage effect. In the end, the finite element analysis results and the test results are used to verify the formula and shows a good agreement. © 2016, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：97 / 105

页数：8

共 15 条

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