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Author:

Cheng, Yang (Cheng, Yang.) | He, Haoxiang (He, Haoxiang.) | Xu, Weixiao (Xu, Weixiao.) | Yang, Weisong (Yang, Weisong.)

Indexed by:

EI Scopus SCIE

Abstract:

To systematically explore the seismic performance of shear walls and frame-shear wall structures under multi-directional seismic actions, three shear wall specimens and one frame-shear wall specimen are fabricated and the quasi-static loading tests are carried out. The shear wall specimens are loaded in oblique direction, in-plane direction, and out-of-plane direction, while the frame-shear wall specimen is loaded in the in-plane direction. The macroscopic damage phenomena of the specimens are analyzed to investigate the influence of the typical performance indicators such as crack propagation, hysteresis curves, skeleton curves, and stiffness degradation curves. Subsequently, the equation for calculating comprehensive damage indices, which can accurately reveal the damage evolution process and final damage severity of shear wall components, is proposed. Based on the calibrated experiments, the appropriate finite element software is used to simulate quasi-static loading from multiple angles on shear wall and frame-shear wall specimens. The time-history analysis are conducted on the frame-shear wall structural system from multiple angles to comparatively analyze the seismic performance and failure modes of the two types of structures under different loading angles. The results indicate that the bearing capacity, the energy dissipation capacity and the lateral stiffness of shear walls and frame-shear wall structures decrease as the loading angle increases. Significant changes in crack development and failure modes are observed under out-of-plane loading for both types of structures, with the structural damage degree increasing with larger angles. There is an urgent need for further analysis and enhancement of the seismic performance of these structures under multi-directional loading conditions.

Keyword:

Crack development Multidimensional excitation Shear wall Damage evaluation Frame-shear wall Out-of-plain failure

Author Community:

  • [ 1 ] [Cheng, Yang]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 2 ] [He, Haoxiang]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 3 ] [Xu, Weixiao]Qingdao Univ Technol, Sch Civil Engn, Qingdao 266000, Peoples R China
  • [ 4 ] [Yang, Weisong]Qingdao Univ Technol, Sch Civil Engn, Qingdao 266000, Peoples R China

Reprint Author's Address:

  • [He, Haoxiang]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China

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Source :

JOURNAL OF BUILDING ENGINEERING

Year: 2025

Volume: 105

6 . 4 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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