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- Title
胶合木梁柱削弱型钢填板-螺栓连接数值模拟及参数分析.
- Authors
曹万铖; 王雪亮; 奉佳; 刘杨梅
- 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.
- Subjects
STRAINS &; stresses (Mechanics); IRON &; steel plates; FINITE groups; FINITE element method; NUMERICAL analysis
- Publication
Journal of Architecture & Civil Engineering, 2022, Vol 39, Issue 5, p172
- ISSN
1673-2049
- Publication type
Article
- DOI
10.19815/j.jace.2021.04083