|Table of Contents|

Numerical Simulation and Parameter Analysis of Bolted Glulam Beam-to-column Connections with Weakened Slotted-in Steel Plates(PDF)

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

Issue:
2022年05期
Page:
172-182
Research Field:
结构工程
Publishing date:

Info

Title:
Numerical Simulation and Parameter Analysis of Bolted Glulam Beam-to-column Connections with Weakened Slotted-in Steel Plates
Author(s):
CAO Wan-cheng1;  WANG Xue-liang1; 2;  FENG Jia1;  LIU Yang-mei3
(1. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China; 2. Hainan Research Institute of Wuhan University of Technology, Sanya 572025, Hainan, China; 3. Hubei Fuhan Green Building Co., Ltd., Wuhan 430070, Hubei, China)
Keywords:
glulam frame;  connection with weakened slotted-in steel plate;  mechanical property;  ductility;  parameter analysis
PACS:
TU366.3
DOI:
10.19815/j.jace.2021.04083
Abstract:
A new type of connection with weakened slotted-in steel plates was designed, and several groups of finite element models were established for numerical analysis. The stiffness, ductility and bearing capacity of the new connection were compared to the ordinary connection. Considering the influence of the slots' number, edge distance, slot length, weakening height and other factors on the beam-column connection performance, the method of orthogonal design was used to determine the model scheme of different factor combination, and the finite element method was used to explore the influence degree and influence law of each factor on the beam-column connection performance. The results show that the stress and deformation of the connection are mainly concentrated on the steel plate which yields earlier than the cross-grain splitting of the timber. When the connection fails, the steel plate has yielded in a large area, which effectively avoids the premature splitting of the wood beam and provides better ductility for the beam-column connection.The influence of weakening height and the number of slots is the most significant. With the increase of the weakening height and the number of slot, the overall yield of the connection is earlier and the ductility is enhanced. Enlarging edge distance can also increase the bearing capacity, but the ductility decreases. The length of slot has limited influence on the stiffness of this connection, but it has obvious impact on the yield moment and ductility coefficient.

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Last Update: 2022-09-30