CONTRASTIVE ANALYSIS ON DAMAGE PHENOMENA AND STRAIN DEVELOPMENT IN JOINT AREA OF COVER PLATE REINFORCED STEEL FRAME CONSIDERING FLOOR EFFECT

LI Jianfen; WANG Yan; CHEN Xiao

doi:10.13204/j.gyjzG21011108

Volume 51 Issue 4

Aug. 2021

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LI Jianfen, WANG Yan, CHEN Xiao. CONTRASTIVE ANALYSIS ON DAMAGE PHENOMENA AND STRAIN DEVELOPMENT IN JOINT AREA OF COVER PLATE REINFORCED STEEL FRAME CONSIDERING FLOOR EFFECT[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 111-117. doi: 10.13204/j.gyjzG21011108

Citation:

LI Jianfen, WANG Yan, CHEN Xiao. CONTRASTIVE ANALYSIS ON DAMAGE PHENOMENA AND STRAIN DEVELOPMENT IN JOINT AREA OF COVER PLATE REINFORCED STEEL FRAME CONSIDERING FLOOR EFFECT[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 111-117. doi: 10.13204/j.gyjzG21011108

Citation:

LI Jianfen, WANG Yan, CHEN Xiao. CONTRASTIVE ANALYSIS ON DAMAGE PHENOMENA AND STRAIN DEVELOPMENT IN JOINT AREA OF COVER PLATE REINFORCED STEEL FRAME CONSIDERING FLOOR EFFECT[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 111-117. doi: 10.13204/j.gyjzG21011108

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CONTRASTIVE ANALYSIS ON DAMAGE PHENOMENA AND STRAIN DEVELOPMENT IN JOINT AREA OF COVER PLATE REINFORCED STEEL FRAME CONSIDERING FLOOR EFFECT

doi: 10.13204/j.gyjzG21011108

1. School of Civil Engineering, Qingdao Technology University, Qingdao 266033, China;
2. Changzhou Institute of Technology, Changzhou 213032, China

Received Date: 2021-01-11
Available Online: 2021-08-19

Abstract

Abstract

This paper mainly introduced the key techniques of shaking table test model design and finite element modeling for ductile joint reinforced with cover plate (CPF) and normal steel frame(NSF) considering the floor effect; The contrastive analysis and study on the damage phenomena, strain development in the joint area under the action of severe and mega earthquakes. By using multi-precision shell elements and coupling the translational and rotational degrees of freedom between the floor and the beam upper flange, the finite element analysis results were in good agreement with the experimental results. The results of the comparative analysis of the damage phenomena and strain development law in the joint area showed that CPF steel frame effectively moved the plastic hinge away from the welding at the beam end, in this way, beam hinge failure mechanism of strong column and weak beam, strong joint and weak component was realized. The energy dissipation capacity and bearing capacity of the structure were improved.
- damage,
- stress development law,
- floor effect,
- key techniques of finite element modeling,
- plastic hinge

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References(16)

References

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