Abstract
In this paper, the ABAQUS dynamic display analysis method is used to realize the quasi-static analysis of the welding nail. The correctness of the finite element model is verified by comparing with the existing experiments. The finite element simulation calculated four different nail lengths hs, and the calculated simulation values were in good agreement with the experimental values. In the case of the failure mode, when the welding nail is too short and the length-to-diameter ratio of the welding nail is less than 5.92, the whole of the welding nail together with the broken concrete in the surrounding area is pulled out, and when the aspect ratio satisfies certain requirements, the welding nail is generated. Necking, the concrete slab is not broken, and the ultimate tensile bearing capacity is relatively close.
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