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Title: Seismic Behavior of Reinforced Ribbed Composite Walls with Openings

Author(s): Guo-Xin Chen, Fei Yu, Li Wang, Ye-Shun Chen, Xin-Min Lv, and Wei Huang

Publication: Structural Journal

Volume: 118

Issue: 6

Appears on pages(s): 131-142

Keywords: finite element analysis; low reversed-cyclic lateral loading; reinforced ribbed composite wall; seismic performance; wall opening

DOI: 10.14359/51732850

Date: 11/1/2021

Abstract:
This paper reports on an experimental program and a finite element analysis investigating the seismic behavior of reinforced ribbed composite walls with different opening conditions. Three specimens of half-scale models of the prototype structure were tested under the combined action of axial compression and reversed-cyclic transverse loading. The experimental study’s main parameters were the failure modes, bearing capacity, hysteresis performance, ductility, and stiffness degradation. The failure mode and seismic performance of walls with openings were compared with that of fundamental walls. Some important conclusions drawn are that a wall with the door and window openings experienced shear failure; the ultimate bearing and the lateral stiffness of a wall with no ribbed column are greatly weakened by the wall opening; and the ribbed column at the edge of the wall opening can strengthen the weakening of the ultimate bearing capacity and lateral stiffness of the wall opening.