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Study on the Seismic Performance of H-beam to Square Tubular Column Connections with Trough Diaphragms

Author: ZhuangLei
Tutor: TongLeWei
School: Tongji University
Course: Structural Engineering
Keywords: Beam-column connections Separator through node Hysteretic behavior Node test Finite Element Analysis Square column H-shaped steel beams
CLC: TU392.1
Type: Master's thesis
Year: 2006
Downloads: 210
Quote: 6
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Abstract


In recent years, become a hot issue in the development of China's steel residential square column and H-shaped steel beams connected frame structural system used in multi-rise buildings is a good choice. Column with H-shaped steel beam connection can take many forms, low production costs, construction convenient the bulkhead connection through one. This connection in a foreign country, especially in Japan, have been widely used, but lack of application and research in our country, there is no design guidelines to follow. Order to promote the application of the square column-H steel beam separator through node, its testing and finite element numerical analysis, research and the results obtained are as follows: 1. 4 engineering scale plane frame bulkhead through side-column-H steel beam beam-column joints test and compare the effects of the nodes in the hysteretic behavior under cyclic loading, the power transmission mechanism and failure mode. Process and undermine the phenomenon of the destruction of the specimens from the test results are similar only fully guarantee the quality of the weld to play through the seismic performance of the square column-H-beam bulkhead. 2. Analysis of the test data, analytical test phenomenon, while the other column-H steel beam separator through node structure details were discussed. The analysis found that the hysteretic behavior of the square column-H-beam bulkhead through nodes, the energy dissipation capacity of the ultimate bearing capacity and node domain is basically the same as with ordinary column through node. Established finite element model of each node, the finite element calculations with experimental results verified by comparing the finite element model accuracy analog node specimens hysteretic process to calculate the ultimate bearing capacity derived node. By theoretical analysis and finite element calculations, the current structure design specification on beam-column joints domain checking formula checking requirements are fully applicable to the column and beam bulkhead through node. Further analysis of the the division force through its stress distribution, the proposed the membrane stress checking formula and the thickness of the separator limitations. 5 node parameters, calculated by the finite element numerical master partition thickness, singled out the length and axial compression ratio of node performance investigated. The combination of experiment and FEM analysis results are summarized certain criteria can be used to guide the engineering design.

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CLC: > Industrial Technology > Building Science > Building structure > Metal structures > Various types of steel > Steel structure
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