Experimental research on seismic performance of integrated light wall panel full-bolted prefabricated steel frame

In order to research the seismic performance of full-bolted prefabricated steel frame with exacerbation thermos decorative integrated light wall panel, three one-bay, one-story and 1∶ 2 scaled steel frames were carried out by performing quasi-static tests. Effects of exacerbation thermos decorative integrated light wall panel and joint form on steel frame performance were considered. The overall failure mode of the steel frame, bearing capacity, stiffness, ductility, energy dissipation and full strain distribution were analyzed. The internal force of the steel frames was also calculated. The results show that the integrated light wall panel increases the carrying capacity by 1.17%, the initial stiffness is increased by 1.83%, and the ductility decreases by 0.91%, the energy dissipation capacity is increased by 26. 53%, and the beam end-plastic hinges gradually become a strip-shaped distribution. When the inter-story angle is 0.02 rad, the bearing capacity degradation coefficient of steel frame is still greater than 0.9, indicating that the structure has a higher security reserve. Compared to the outer tandem side, the L-shaped connection joint can increase the structure yield load by 13.62%, and the peak load is increased by 11.26%. The structural plastic hinge is shifted, and the plastic hinge is expanded which enhances the energy consumption capacity of steel frame. The contribution of the outer wall panel to the mechanical properties of the steel frame is relatively small. © 2023 Science Press. All rights reserved.