Abstract
Reasonable and accurate simulations of failure behaviors of steel-concrete composite members with trough embedded parts is of great significance for the study of joint failure mechanism of prefabricated components in assembled buildings. Based on the implicit solution module of ABAQUS, the anchor legs of 5234 trough embedded parts are redesigned. The cylindrical anchor legs are designed as anchor plates with different diameter holes. The finite element model of the anchor leg of improved 5234 trough embedded parts and that of concrete are established. The mechanical properties of the specimens under bending and shear failure are simulated. And take a research on the improved trough embedded parts. The results show that the ultimate stress of concrete and the ultimate stress of embedded parts decrease first, then increase and then decrease with the increase of the diameter of circular hole, and the displacement of anchor leg of embedded parts decreases first and then increases with the increase of the diameter of circular hole. When the diameter of circular hole is 10.0 mm, the ultimate stress of concrete, the ultimate stress of embedded parts and the displacement of anchor leg are the smallest, and the mechanical properties of embedded parts are improved the most.
Highlights
In recent years, with the rapid development of assembled buildings, embedded parts, as one of the connections between steel-concrete structures, have been gradually used in bridges, wharfs and some super high-rise buildings in a wider range of application
The results showed that the failure mode of anchor rod embedded parts was pull-off under composite stress and had good ductility; Tang Ruirui [2]and others studied the residual bearing capacity of anchor rod embedded parts after fire and the bond performance between steel bar and concrete, and the research showed that the failure mode of anchor rod embedded parts was pull-off under composite stress
From the concrete ultimate stress, the deformation and the ultimate stress of the embedded parts of the five groups of specimens in Table 2, it can be seen that the ultimate stress of the concrete and the ultimate stress of the embedded parts after loading decreases first, increases and decreases with the increase of the diameter of the circular hole, and the displacement of the anchor leg of the embedded parts decreases first and increases with the increase of the diameter of the circular hole
Summary
With the rapid development of assembled buildings, embedded parts, as one of the connections between steel-concrete structures, have been gradually used in bridges, wharfs and some super high-rise buildings in a wider range of application. Various mechanical properties of anchor rod embedded parts are tested and analyzed by finite element method. The results showed that the failure mode of anchor rod embedded parts was pull-off under composite stress and had good ductility; Tang Ruirui [2]and others studied the residual bearing capacity of anchor rod embedded parts after fire and the bond performance between steel bar and concrete, and the research showed that the failure mode of anchor rod embedded parts was pull-off under composite stress. The bearing capacity of anchor rod embedded parts and bond strength of steel bar decrease with the increase of the highest temperature experienced. The mechanical properties and calculation analysis of embedded parts are studied in the current literature. Bai Baokun [3] improves its
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