Abstract
In order to study the mechanical behavior of bolted beam-column connections, the accuracy and applicability of the finite element model were firstly validated according to the published experiments on end-plate connections using ABAQUS. Then, in order to discuss the mechanical behavior of connections, three semirigid connections which are convenient for prefabricated construction, including top-and-seat angle connections with web and ear plate, extended end-plate connection, and T-stub connection, were examined using numerical simulation analysis to study and compare their capacity, hysteretic behavior, ductility, and degradation characteristics in detail. The results showed that the finite element models that were built could effectively simulate the load bearing behavior of bolted connections under both single-direction loading and cyclic loading. The three connections showed good load bearing capacity. The connectors significantly affected the energy dissipation capacity under load. The extended end-plate connection demonstrated the best performance in both mechanical behavior and manufacture and installation, so it would therefore be the preferred option.
Highlights
Bolted beam-column connection joints have the advantages, such as a high degree of assemblage, quick speed of construction, energy conservation, and environmental protection, which meet the requirements of industrial building
Based on the existing experimental research, this paper used the finite element analysis software ABAQUS to establish an analytic finite element model of the end-plate connection, which was compared with the experimental results to verify the accuracy and applicability of the model
An analytic finite element model of the topseat angle connections, with web and ear plate, of extended endplate connections and T-section steel connections was Advances in Civil Engineering established to contrast and analyze the performance parameters such as load-bearing capacity, hysteretic performance, ductility performance, and failure modes. e mechanical properties of semirigid joints of different structural types, structures, and proposed designs have been discussed in depth
Summary
Bolted beam-column connection joints have the advantages, such as a high degree of assemblage, quick speed of construction, energy conservation, and environmental protection, which meet the requirements of industrial building. Ere are various structural types of semirigid bolted joints, common endplate connections, steel angle connections, and T-section steel connections. E mechanical properties of these three kinds of joints at home and abroad have been studied [9–19]; load tests and variable analysis have basically been only carried out on one kind of joint without systematic comparison and analysis of the seismic performance of common types of semirigid structural joints, which cannot be used to guide engineering design. An analytic finite element model of the topseat angle connections, with web and ear plate, of extended endplate connections and T-section steel connections was Advances in Civil Engineering established to contrast and analyze the performance parameters such as load-bearing capacity, hysteretic performance, ductility performance, and failure modes. Designers can select the appropriate joint types according to the design requirements
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