|Table of Contents|

Research on mechanical behavior of joints based on special-shaped connection in reticulated glulam shell(PDF)

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

Issue:
2023年02期
Page:
59-68
Research Field:
建筑结构
Publishing date:

Info

Title:
Research on mechanical behavior of joints based on special-shaped connection in reticulated glulam shell
Author(s):
WEI Zhipeng1;  LI Jun1;  LI Muyuan2;  SHENG Jie3;  WANG Yan1
(1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong, China; 2. Shanghai Lianchuang Design Group Co., Ltd. Qingdao Branch, Qingdao 266033, Shandong, China; 3. Binzhou Construction Drawing Review Center, Binzhou 256600, Shandong, China)
Keywords:
reticulated glulam shell;  special-shaped connector;  axial compression performance test;  flexural performance test;  mechanical behavior
PACS:
TU311
DOI:
10.19815/j.jace.2021.10001
Abstract:
In order to reduce the self-weight of joints and improve the aesthetics of structures, it is necessary to carry out the research on the new connection form of reticulated timber shell joints. The new pin connection for K6 reticulated shell was taken as the original scheme, and the scheme was improved twice. After the effectiveness of the improved scheme 1 was determined by the axial compression performance test, the flexural performance test of the improved joint was carried out. On the basis, the improved scheme 2 was proposed, and the finite element analysis method was used to research the problem that it was difficult to apply axial pressure and vertical load at the same time due to the limited test conditions. The results show that the improved scheme 1 is less affected by the installation deviation, and its actual bearing capacity is not lower than the expected design value as the original scheme. The self-weight of the special-shaped steel connector in this joint is 20%-50% lighter than that of the reticulated shell joint, which is widely used at present. It has good elastic deformation performance in the axial compression performance test and certain plastic deformation performance in the flexural performance test. The joint mechanical performance of the improved scheme 2 under the combined action of axial compression and vertical load is obviously better than that under the single action of vertical load, which illustrates that the axial pressure is beneficial to the flexural capacity of the joint. The flexural capacity of the joint of improved scheme 2 is more advantageous than that of improved scheme 1. The steel plate thickness suggestion put forward after data optimization can provide reference for the engineering design.

References:

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Last Update: 2023-03-20