Finite element analysis of high-rise prefabricated shear walls with discontinuous rebars.

Authors

Zhiqi Li, Jun Peng, Hairen Wang, Wenyi Xia, Jianyin Lei, Jiaxin He, Yunhui Chen, Yaoyao Liu, Jiahui Zhang, Xiyong Sun, Haiping Xie

Published in

Scientific reports. Jul 03, 2026. Epub Jul 03, 2026.

Abstract

The seismic performance of vertical reinforcement discontinuous splice prefabricated shear walls (SGBL prefabricated shear walls) in high-rise buildings is investigated in this study. The failure mechanisms, load-bearing capacity, ductility, and energy dissipation characteristics of these walls are clarified, with particular attention given to the influence of the shear-span ratio and axial compression ratio. A refined model was established using ABAQUS finite element software, and simulations were conducted on individual SGBL wall panels under various shear-span ratios (achieved by adjusting story heights) and axial compression ratios (0.1, 0.3, 0.5). The results demonstrate that the load-bearing capacity of the wall panels increases significantly with the axial compression ratio (Specimens with shear-span ratios of 1.25, 1.5, and 1.75 exhibited increases of 76.8%, 88%, and 82%, respectively). In contrast, ductility and energy dissipation capacity are reduced. When an axial ratio of 0.5 and a shear-span ratio of 1.25 were applied, interlaced diagonal cracks were observed in specimen SW1-0.5. Therefore, the inclusion of inclined reinforcement is recommended in practice to prevent premature brittle failures. Under a constant axial compression ratio, it was found that the load-bearing capacity decreases as the shear-span ratio increases, whereas ductility and energy dissipation capacity are enhanced. Specimen SW3-0.1, characterized by a low axial compression ratio and a large shear-span ratio, exhibited the optimum energy dissipation capacity and ductility. During the simulation, no vertical cracks were observed at the joint interface between the precast panels and the cast-in-situ components, confirming that the structure exhibits excellent integrity and compatibility.

PMID:
42399662
Bibliographic data and abstract were imported from PubMed on 04 Jul 2026.

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