In order to realize the weak axis connection of the H-shaped steel column of the steel frame,de-signs a cantilever section H-shaped steel beam-column weak-axis top and bottom L-shaped parts to connect the steel frame,and the thermal insulation decorative lightweight wallboard is used as the enclosure struc-ture to hang on the steel frame.The seismic test was carried out on one-bay,one-story and 1∶2 scaled specimens,and the overall failure mode,bearing capacity,stiffness and energy dissipation capacity of the structural system were analyzed,the overall performance of the externally mounted lightweight wallboard system was evaluated.The results show that the failure mode of the fully bolted weak axis connection steel frame of the external lightweight wall panel is reasonable,the wall panel system is stable,and the L-shaped connection node realizes the outward movement of the plastic hinge of the beam end.The hysteresis curve of the structure is full,and the skeleton curve is S shaped.The positive yield displacement and ultimate bearing capacity are 27.08 mm and 351.99 kN,respectively,and the negative direction is 19.78 mm and 377.43 kN,which meet the requirements of structural ductility and bearing capacity.The plastic stiffness of the specimen degrades slowly,the maximum damping ratio reaches 0.35,and the overall energy dissipa-tion performance is better.The dry-hanging form of the external wall panel and the full-bolt connection method of the steel frame together improve the efficiency of building assembly.
维普
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