|Table of Contents|

Seismic Performance of Sandwich Wallboard-steel Frame Assembly System Based on Steel Plate Connection(PDF)

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

Issue:
2020年03期
Page:
63-72
Research Field:
Publishing date:

Info

Title:
Seismic Performance of Sandwich Wallboard-steel Frame Assembly System Based on Steel Plate Connection
Author(s):
YANG Yan-min1;  HU Ting-yi1;  ZHANG Bin-lin1;  WANG Bo1;  WANG Xiao-yu2
(1. School of Civil Engineering, Jilin Jianzhu University, Changchun 130118, Jilin, China; 2. School of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan 467036, Henan, China)
Keywords:
steel plate connection;  steel frame;  sandwich wallboard;  seismic performance;  shear capacity;  pseudo-static test
PACS:
TU398
DOI:
10.19815/j.jace.2019.04075
Abstract:
In order to study the seismic performance of sandwich wallboard-steel frame system based on steel plate connection, the shear performance test of sandwich wallboard and steel frame under steel plate connection was carried out, and the shear performance of the steel plate connection was studied. Then, one steel frame system of sandwich wallboard with thickness of 3 mm, one steel frame system of sandwich wallboard with thickness of 6 mm and one contrastive empty framework system were studied by low cycle reciprocating test. The failure mode, hysteretic performance, energy dissipation capacity and stiffness degradation of each specimen were analyzed. Finally, the seismic performance was evaluated comprehensively. The results show that the average shear capacity of the connecting steel plate is 59.8 kN, and the welding quality of the connecting steel plate will affect its mechanical performance, which will cause the asymmetry of the positive and negative ultimate bearing capacity of the wallboard frame system, with the maximum difference of 25.1%. When the connecting steel plate is thin, the connecting parts are torn and welded, except for the concrete cracking near the connecting parts, the wallboard is basically in good condition. When the connecting steel plate is thick, the connecting parts are basically intact and the wall plate cracks diagonally. In addition, the thickening steel plate can improve the initial stiffness of the system, but the ductility is reduced. Adding wallboard can improve the bearing capacity,ductility and energy dissipation capacity of the main frame. And the coordinated deformation between wallboard and steel frame shows a good integrity. When the horizontal displacement is large, the diagonal oblique brace mechanism is formed between the wallboard and the frame, which can provide theoretical guidance for the subsequent research of the interaction mechanism between the sandwich wallboard and the frame.

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Last Update: 2020-06-08