Seismic performance of shear wall structure with  a new damper used in coupling beam

Journal of Lanzhou University of Technology ›› 2021, Vol. 47 ›› Issue (3): 105-112.

• Architectural Sciences • Previous Articles Next Articles

Seismic performance of shear wall structure with a new damper used in coupling beam

HE Qing-guang^1,2, SHANG Jin¹, DANG Yu^1,2

1. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou Univ. of Tech., Lanzhou 730050, China;
2. Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2019-03-13 Online:2021-06-28 Published:2021-07-19

Abstract

Abstract: An innovative compound damper which can be replaced after earthquake is studied. The compound damper can be installed at the middle of coupling beam to protect the wall and improve the capacity for dissipate energy of coupling beams. Based on ABAQUS procedure, an equivalent simplified model which can effectively reflect characteristics of compound dampers are proposed and compared with the simulation model. The equivalent simplified model is used in the shear wall structure with coupling beams, and dynamic time history analysis is carried out under the rare earthquake. Taking the concrete beam as a reference, seismic performance influenced by alternative stiffness of beams which are installed the compound dampers are studied. The results show that the equivalent simplified model can show the characteristics of the compound dampers well; compound dampers can effectively reduce the inter story drift, base reaction and damage of the structure; when the value of alternative stiffness ratio is 0.4,the better damping effect of the structure can be obtained.

Key words: compound dampers, equivalent model, coupling beams, seismic performance

CLC Number:

TU352

HE Qing-guang, SHANG Jin, DANG Yu. Seismic performance of shear wall structure with a new damper used in coupling beam[J]. Journal of Lanzhou University of Technology, 2021, 47(3): 105-112.

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Seismic performance of shear wall structure with a new damper used in coupling beam

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