Experimental and numerical investigation on seismic performance of semi-precast concrete sandwich shear wall

Autor: Yun-Lin Liu, Chang Liu, Hao Pan, Jia-Li Fu, Jun-Qi Huang, Jia-Qiang Hong
Rok vydání: 2022
Předmět:
Zdroj: Advances in Structural Engineering. 25:2772-2784
ISSN: 2048-4011
1369-4332
DOI: 10.1177/13694332221108435
Popis: This study investigated the seismic performance of an innovative semi-precast concrete sandwich shear wall (SCSSW) system. The system consists of two precast reinforced concrete (RC) wythes, a core cast-in-place RC wythe, a core thermal insulation layer, the fiber reinforced polymer connectors and the steel trusses. A total of three RC shear wall specimens were fabricated and tested under in-plane cyclic load. They consists of one conventional cast-in-place RC shear wall, one structural wythe of SCSSW (i.e., the assemble of a precast and a cast-in-place RC wythe), and one typical SCSSW. The failure mode, hysteretic curve, ductility and energy dissipation of the three specimens were studied and compared. Furthermore, numerical simulation based on multi-layer shell element was conducted to reproduce the test, and parametric analysis was conducted to facilitate a better understanding on the SCSSW. It was concluded that the SCSSW presented a ductile failure behavior; the seismic performance of the SCSSW including hysteretic curves, skeleton curves, stiffness degradation and the energy dissipation was similar to that of the cast-in-place RC shear wall, while the ductility of the SCSSW was slightly lower; and the facade precast RC wythe contributed few effect on the seismic performance of the SCSSW.
Databáze: OpenAIRE
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