Structural behaviourof dual eccentrically braced frames with welded dog-bone joints subjected to cyclic loading
Document typeConference report
PublisherIndependent Publishing Platform
Rights accessRestricted access - publisher's policy
This paper presents the results of a series of simulations of welded dog-bone connections subjected to cyclic and monotonic loading. Reduced beam section (RBS) connections are a very easy to apply and economical solution, and can exhibit very good rotation capabilities under cyclic actions. In this paper, a numerical model developed with the finite element software Abaqus is presented to study the rotational behaviour of dog-bone joint connections in I-sections subjected to cyclic and monotonic loading (using shell elements). Moment-rotation curves are obtained from the simulations. These moment-rotation curves obtained from Abaqus are implemented in another numerical model developed with the software SAP2000 (using beam elements) to assess the behaviour of a six-storey dual eccentrically-braced frame (DEBF) when subjected to seismic loading by means of a nonlinear static pushover analysis performed to evaluate the magnitude and location of the damage and the rotation capabilities of the dog-bone joints when subjected to static horizontal actions and to observe the collapse mechanisms that occur in each case. The behaviours of these D-EBF’s are then compared to those of a structure with the same characteristics but without any RBS connections to seek for ductility and base shear differences.
CitationJiménez, A.; Mirambell, E.; Real, E. Structural behaviourof dual eccentrically braced frames with welded dog-bone joints subjected to cyclic loading. A: International Conference on Steel and Aluminium Structures. "Proceedings of the 9th International Conference on Steel and Aluminium Structures: ICSAS19: 3rd-5th July 2019, Bradford, UK". Independent Publishing Platform, 2019, p. 1206-1217.
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