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|Title:||Experimental program for large-scale tests on a re-centring dual eccentrically braced frame|
|Authors:||STRATAN Aurel; IOAN CHESOAN Adriana; DUBINA Dan; TAUCER Fabio; POLJANSEK Martin; MOLINA RUIZ Francisco Javier; PEGON Pierre; D'ANIELLO Mario; LANDOLFO Raffaele|
|Citation:||EUROSTEEL 2014: Proceedings of the 7th European Conference on Steel and Composite Structures|
|Publisher:||University of Naples Federico II|
|Type:||Articles in periodicals and books|
|Abstract:||Structural systems that aim at reducing structural damage by isolating plastic deformations in removable or "repairable" elements, and have the ability to return to the initial undeformed shape after an earthquake have received much attention recently. One of the solutions applicable to steel moment-resisting frames relies on post-tensioned beam to column joints  and column bases . Other solutions having the same performance objectives use beam to column joints assembled with shape memory alloy connecting devices . Vargas and Bruneau  investigated a design approach aiming to concentrate damage on removable and easy to repair structural elements ("structural fuses"), with the main structure designed to remain elastic or with minor inelastic deformations. A systematic procedure was proposed to design buildings with metallic structural fuses. Kiggins and Uang  showed that even if buckling restrained braced frames exhibit a favourable energydissipating mechanism, the low post-yield stiffness of the braces leave the system vulnerable to unfavourable behavioural characteristics such as large permanent drift. The potential benefit of using buckling-restrained braces in a dual system to minimize permanent deformations was investigated and shown to reduce significantly residual story drifts.|
|JRC Directorate:||Space, Security and Migration|
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