EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM

XIE; Qin

doi:10.13204/j.gyjz202001006

Volume 50 Issue 1

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XIE, Qin. EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(1): 28-33. doi: 10.13204/j.gyjz202001006

Citation:

XIE, Qin. EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(1): 28-33. doi: 10.13204/j.gyjz202001006

XIE, Qin. EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(1): 28-33. doi: 10.13204/j.gyjz202001006

Citation:

XIE, Qin. EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(1): 28-33. doi: 10.13204/j.gyjz202001006

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EFFECT OF STIFFNESS RATIO ON THE SEISMIC BEHAVIOR OF BRB-PREFABRICATED CONCRETE FRAME DUAL SYSTEM

doi: 10.13204/j.gyjz202001006

XIE^1,2,
Qin²

1. School of Civil Engineering, Guizhou Institute of Technology, Guiyang 550003, China;
2. Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China

Received Date: 2019-03-01

Abstract

Abstract

Aiming at the dual system composed of prefabricated concrete frame (PCF) and buckling restrained brace (BRB) system, the finite element analysis models of different story structures were established, and the influence of stiffness ratio (i.e. the lateral stiffness ratio of BRB system to PCF system) k on the seismic behavior of the structure was studied by using nonlinear dynamic time-history analysis method. The results showed that the proper arrangement of BRB in PCF system could reduce the peak story drifts of the structure and the damage degree of beam and column members, and improve the post-earthquake repair efficiency of the structure. When the stiffness ratio was small, increasing k could improve the seismic behavior of the structure, but when k≥1.5, increasing k would improve the seismic behavior of the structure less, and the reasonable range of stiffness ratio was suggested to be k≤1.5.
- prefabricated concrete frame,
- buckling-restrained brace,
- dual system,
- stiffness ratio,
- seismic behavior

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References(14)

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