A multi-spring component modelling approach for T-stub connections. Issue 6 (June 2016)

• Record Type: Journal Article
• Authors: Wang, Zhenyu; Zhang, Jinfan; Jiang, Jianqun
• Is Part Of: Advances in structural engineering. Volume 19:Issue 6(2016)
• Page Start: 883
• Page End: 896
• Publication Date: 2016-06
• Subjects: component method -- finite element analysis -- multi-spring component modelling -- semi-rigid connection -- T-stub; Structural engineering -- Periodicals; Construction, Technique de la; Structural engineering; Periodicals; 624.1
• DOI: 10.1177/1369433216630188
• Languages: English
• ISSNs: 1369-4332

Abstract

The connection is one of the most important members in the structural frame, and its behaviour greatly influences structural collapse patterns and anti-collapse ability. According to the concept of the component method, a semi-rigid beam-to-column connection can be defined as an assembly of a series of equivalent T-stubs and relevant components. In order to actualise the large deformation simulation of the connections, both axially and rotationally, a new multi-spring component model to evaluate properties of T-stub connections has been proposed in this article. The nonlinear property of a T-stub is described by a multi-spring system, which is used to trace the entire T-stub post-yield behaviour. A series of experiments with T-stub connections has been performed to calibrate the proposed model. The load curves and failure mode of the experiments, three-dimensional finite element method and multi-spring component modelling fit well with each other. A case study of beam-to-column semi-rigid connections has also been performed to further illustrate the usage of the T-stub component model in beam-to-column semi-rigid connections.