|Table of Contents|

Experimental study on mechanical properties of joint in assembled corrugated steel structure under axial compression(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2023年01期
Page:
75-84
Research Field:
建筑结构
Publishing date:

Info

Title:
Experimental study on mechanical properties of joint in assembled corrugated steel structure under axial compression
Author(s):
GUO Qi1; 2;  WU Meng1; 3;  PU Guangning1; 2
(1. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China; 2. Key Lab of Structural Engineering and Earthquake Resistance of Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China; 3. CSCEC Zhongyuan Architectural Design Institute Co., Ltd., Zhengzhou 450004, Henan, China)
Keywords:
corrugated steel;  bolted connection;  pre-tightening torque;  damage pattern
PACS:
TU311
DOI:
10.19815/j.jace.2021.07042
Abstract:
To explore the axial pressure performance of the joint in assembled corrugated steel structure, taking the non-joint components as the control group, the pre-tightening moment and bolt spacing as the parameter variables, the corrugated steel plate axial compression test was carried out. The stress performance and its influence of the ultimate bearing capacity of the corrugated steel components were studied. The failure forms and bearing capacity variation were analyzed. The finite element model was built, and the simulated failure form and load-displacement curve of the component were compared and verified with the test data. The failure forms of components with different bolt rows were summarized, and the load-displacement characteristic curve of the joint in assembled corrugated steel was obtained. The results show that the failure forms of bolted corrugated steel component include corrugated steel plate failure and bolt row failure. The failure form of corrugated steel members with four rows of bolts or those without joints is corrugated plate buckling failure. Slip load and peak value of bearing capacity increase with the increase of the pre-tightening moment. When the pre-tightening moment exceeds 20% of the standardized moment, the slip platform disappears. The ductility of load-displacement curve is optimized at the peak position when the bolt hole deformation failure occurs. The research findings can provide the reference for the optimizing design of the joint in the assembled corrugated steel structure.

References:

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Last Update: 2023-01-01