A design-oriented model for the collapse resistance of composite floors subjected to column loss

被引：67

作者：

Alashker, Yasser ^{[1
]}

El-Tawil, Sherif ^{[1
]}

机构：

[1] Univ Michigan, Dept Civil & Environm Engn, Ann Arbor, MI 48109 USA

来源：

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2011年 / 67卷 / 01期

基金：

美国国家科学基金会;

关键词：

Composite floor; Robustness; Disproportionate collapse; Finite element analysis; Collapse; Shear connection; Shear tab; Design model; MEMBRANE ACTION; CONCRETE SLABS; PROGRESSIVE COLLAPSE; FIRE; BUILDINGS;

D O I：

10.1016/j.jcsr.2010.07.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A design-oriented model is proposed for computing the load-resisting capacity of composite steel-concrete floors subjected to interior column loss. The model is based on the premise that floor collapse is resisted through the development of membrane action in the slab elements and catenary forces in the steel beams. A number of simplifying assumptions are made in the model pertaining to the deformed shape of the system, development of failure-resisting mechanisms, and overall system behavior. The proposed model is incremental in nature and tracks the evolution of damage in a floor system loaded up to failure. The model is shown to be able to capture the effect of influential variables on collapse resistance. Key limitations on the model are highlighted and discussed. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：84 / 92

页数：9

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