Study on Seismic Performance of LYP Corrugated Double-Plate Concrete Composite Shear Walls

Abstract:

To study the seismic performance of low-yield point corrugated double-layer steel plate concrete composite shear walls, a finite element model was constructed using ABAQUS. The main parameters considered were the form of the steel plates (corrugated steel plates and flat steel plates) and the strength grade of the steel (low-yield point steel and ordinary steel). The results showed that the yield load of the corrugated steel plate specimens was 11.28% higher than that of the flat steel plate specimens, the peak load was 11.29% higher, and the ductility was 18.68% higher. Moreover, the stiffness degradation of the corrugated steel plate specimens was more gradual, and their energy absorption capacity was stronger, resulting in better seismic performance. Compared with the ordinary steel specimens, the low-yield point steel specimens reached yield earlier and had a certain decrease in bearing capacity, but their ductility was greatly improved, with the maximum improvement being 67.63% and the minimum improvement being 44.22%. Their energy absorption performance was more outstanding, and their seismic performance was better. In other words, both the structural change and the material change can improve the seismic performance of the specimens, and the combination of the two can achieve a greater improvement in the seismic performance of the specimens.