Chao Xu, He Zhang, Kun Wang, Wenjie Ge, Zijun Zhao, Xinyu Xu
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引用次数: 0
Abstract
The Park-Ang damage model is widely used in evaluating structural damage status, but the interactions between compression and biaxial drift still need to be determined. This study takes 42 steel columns, of which sections are H-shaped and box-shaped, as research objects, load conditions of one-directional drift, biaxial drift, and combinations of compression and drift have been analyzed. An equivalent damage index Deq, which is the sum of the 0.42 power of drift damage in two perpendicular directions, is proposed based on the Park-Ang model. And the denominator coefficient α and its calculation equations are proposed to consider the global second-order effect. Furthermore, a 5-story steel frame is taken as a case study, and the damage index marks the failure time of the middle column in each story according to this method.
期刊介绍：
The International Journal of Steel Structures provides an international forum for a broad classification of technical papers in steel structural research and its applications. The journal aims to reach not only researchers, but also practicing engineers. Coverage encompasses such topics as stability, fatigue, non-linear behavior, dynamics, reliability, fire, design codes, computer-aided analysis and design, optimization, expert systems, connections, fabrications, maintenance, bridges, off-shore structures, jetties, stadiums, transmission towers, marine vessels, storage tanks, pressure vessels, aerospace, and pipelines and more.
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