Force Transfer Mechanism and Component-Based Model of Cast-Steel-Stiffened Circular-Tube-Column Frames for Progressive Collapse Analysis
نویسندگان
چکیده
In this paper, the system response, stress redistribution, failure mode, and catenary effect of steel frames with circular tube columns cast stiffener (CSS) joints under a sudden column removal scenario were revealed. Based on force transfer mechanism analysis, practical computationally efficient component-based model considering effects CSS joint details series springs was established validated by detailed solid-element method. By using model, proper dynamic response increase factor investigated. The results show that great overall stiffness strength limit deformation front shell. Therefore, have superior performance for progressive collapse prevention than welded without stiffeners. addition, is to be effective smaller 2.0.
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ژورنال
عنوان ژورنال: Buildings
سال: 2022
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings12071049