Seismic behavior of truss-type light steel structure

In order to study the effects of the continuous truss on the shock resistance performance of the truss-type cold-curved thin-walled steel structure, in the report, the truss position, quantity and test parts were taken into account, a two-foot-foot skeleton model was designed and constructed, the low-frequency cyclic loading test was performed to analyze the hysteretic behavior, stiffness degradation, bearing capacity deterioration, and energy consumption. The results indicated that the continuous truss structure had a good effect on improving the continuity and integrity of the skeleton model. The continuous truss structure set on the left and right sides of the opening model withstood the large horizontal loads and coordinated the deformation with the other components. Compared with the intermediate settings, the bearing capacity of the non-cave model increased by 3.4%, and the cumulative energy consumption under the same displacement condition increased by 27.5%, which suggested that the continuous truss structure can improve the bearing capacity and energy consumption performance of the test parts. The numerical analysis data of the finite element method demonstrated that when the area of the truss cross section increased from 13.2 cm² to 31.2 cm², the carrying capacity increased by 157.37%, the anti-side stiffness increased by 157.89%. Increasing the area of the truss cross section can effectively improve the seismic performance of the structural model.