Aseismic effect of old single-layer masonry agricultural house structure strengthened with embedded steel frame and steel strip

Abstract

Most of the old rural houses in Beijing are single-layer buildings with double-sloping roofs. Under an earthquake, the gable is prone to an outward tilt, and the structure is prone to collapse as a whole. In view of the structural characteristics of the existing rural houses in Beijing, a reinforcement technology is proposed, in which the embedded steel frame reinforcement is mainly used, supplemented by a steel plate strip reinforcement. A 1/4 masonry structure model is designed for a shaking table test. A full-scale model is established in a finite element simulation analysis. The results show that the longitudinal wall is seriously damaged, and the gable has a considerable outward inclination under earthquakes. However, owing to the reinforcement effect of the steel frame, the overall collapse of the structure is avoided. The steel strip can effectively restrain the outward inclination of the gable and ensure safety of personnel.

Seismic performance of fabricated shear wall structures with design defects

“…[6] established and validated a finite element model for grouted sleeve precast concrete columns, undertaking thorough detailed parameter studies to dissect the seismic performance of these precast concrete columns. Notably, the Abquas software emerged as a robust tool boasting potent nonlinear functions and a distinctive concrete plastic damage model, facilitating the effective emulation of plastic damage in concrete structures subjected to low cycle reciprocating loading [7][8][9][10][11][12]. Therefore, this paper adopts Abquas software to simulate shear wall structures.…”