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Author:

Zhang, Jianwei (Zhang, Jianwei.) | Li, Yida (Li, Yida.) | Zhao, Yirong (Zhao, Yirong.) | Cao, Wanlin (Cao, Wanlin.)

Indexed by:

EI Scopus

Abstract:

In order to promote the development of high-performance green building structures and the engineering application of high-strength steel bars and medium-high strength recycled concrete, a type of prefabricated medium-high strength recycled concrete shear wall with annular closed reinforcements and longitudinal high-strength steel bars in boundary elements was developed. The cyclic loading tests on six prefabricated concrete shear walls with a shear-span-ratio of 2.2 were carried out. The influences of replacement ratio of recycled coarse aggregate, concrete strength, longitudinal steel bar strength of embedded columns and lap position on seismic performance indexes including failure mode, hysteretic performance, bearing capacity, ductility, stiffness degradation, energy dissipation capacity and resilient behavior of prefabricated recycled concrete shear wall were analyzed. The test results indicate that the failure mode of the prefabricated medium-high strength recycled concrete shear wall with high-strength steel bars in boundary elements is mainly bending failure. The replacement ratio of recycled coarse aggregate has little influence on the bearing capacity, ductility and energy dissipation capacity of prefabricated medium-high strength recycled concrete shear wall. All specimens show good seismic behavior. Using HRB600 longitudinal steel bars in embedded columns can effectively improve the bearing capacity, energy dissipation capacity and resilient performance of the prefabricated medium-high strength recycled concrete shear wall. The ductility will decrease obviously when the longitudinal steel bars of the embedded columns are overlapped in the plastic hinge region of the prefabricated medium-high strength recycled concrete shear wall. The formula for calculating the horizontal bearing capacity of prefabricated medium-high strength recycled concrete shear wall with HRB600 longitudinal reinforcement was given. By comparing the calculation results, the calculation model of the horizontal bearing capacity of ordinary concrete shear wall is also applicable to the prefabricated shear wall structure. © 2022, Editorial Office of Journal of Building Structures. All right reserved.

Keyword:

Concrete testing Seismic waves Bearing capacity High strength steel Connectors (structural) High performance concrete Recycling Steel testing Ductility Bars (metal) Shear walls Cyclic loads Stiffness Reinforcement Concrete aggregates Energy dissipation

Author Community:

  • [ 1 ] [Zhang, Jianwei]Key Laboratory of Urban and Engineering Security Disaster of China Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Li, Yida]Key Laboratory of Urban and Engineering Security Disaster of China Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Zhao, Yirong]Key Laboratory of Urban and Engineering Security Disaster of China Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Cao, Wanlin]Key Laboratory of Urban and Engineering Security Disaster of China Ministry of Education, Beijing University of Technology, Beijing; 100124, China

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Source :

Journal of Building Structures

ISSN: 1000-6869

Year: 2022

Issue: 4

Volume: 43

Page: 103-113

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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