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Author:

Zhang, J. (Zhang, J..) | Yang, H. (Yang, H..) | Zhang, M. (Zhang, M..) | Liu, X. (Liu, X..)

Indexed by:

Scopus SCIE

Abstract:

A type of recycled aggregate concrete shear wall was proposed in this work, which used the painted ultra-high-strength steel (UHSS) reinforcements with low bond strength and high yield strength in the boundary elements. For investigating the seismic resistance and resilient performance of this shear wall, six shear walls with the shear-to-span ratio of 1.5 were fabricated and tested under the cyclic loads. The variables studied in this paper were the types of the longitudinal reinforcement in the boundary elements, the existence of steel fibers, the presence of the concealed bracings (X-shaped) and the different axial compression ratios. The test results indicated that specimens with the UHSS reinforcement in the boundary elements decreased the residual deformation substantially and improved the resilient properties. The higher axial compression ratio enhanced lateral force resistance of shear wall but aggravated concrete damage which was adverse to the resilience. In addition, the utilization of steel fibers in concrete significantly reduced the crack width. The shear wall including concealed bracing not only showed much higher lateral force resistance, but also had desirable resilient performance under the large deformation. Finally, a simplified calculation model for such shear walls was proposed on the basis of experiment. And the good accuracy of the calculation model was verified by comparing the calculation results and the measured results. © 2022 Institution of Structural Engineers

Keyword:

High strength recycled aggregate concrete; Mid-rise shear wall; Resilience; Seismic performance; Ultra-high-strength reinforcement

Author Community:

  • [ 1 ] [Zhang, J.]Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing, China
  • [ 2 ] [Yang, H.]Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing, China
  • [ 3 ] [Zhang, M.]Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing, China
  • [ 4 ] [Liu, X.]Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing, China

Reprint Author's Address:

  • [Zhang, J.]Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, China

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Source :

Structures

ISSN: 2352-0124

Year: 2022

Volume: 41

Page: 36-50

4 . 1

JCR@2022

4 . 1 0 0

JCR@2022

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 15

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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