Cyclic Behaviors of Steel Braces in Concentrically Braced Frames

Abstract:

In this paper, a new model named as “brace01” for steel brace is presented on the basis of experimental data on different types of steel struts. This model shows a peasant capability in the structural analysis of Concentrically Braced Frames. A brace is idealized as a pin-ended member with a plastic hinge located at its midspan. This expression of the model is proposed by combining the mechanical properties and the phenomenological characters. The model for steel brace is implemented in an effective way in OpenSees. The calibration of the material model is done by comparing the numerical curves generated by the numerical model with the experimental curves of pin-ended steel braces. The new model is proved applicable to practical Concentrically Braced Frame.

• Periodical: Applied Mechanics and Materials (Volume 847)
• Pages: 128-134
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.847.128
• Online since: July 2016
• Authors: Zhi Hao Zhou*, Camillo Nuti, Davide Lavorato, Alessandro Vittorio Bergami
• Keywords: Buckling, Material Model, OpenSEES, Steel Brace

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