Experiment and plastic analysis on two-way steel-concrete composite beams

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作者：
Department of Civil Engineering, Tsinghua University, Beijing 100084, China [1 ]
不详 [2 ]
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来源：
Harbin Gongye Daxue Xuebao | 2007年 / SUPPL. 2卷 / 291-295期
关键词：
Calculations - Concrete slabs - Concretes - Cracks - Deflection (structures) - Deformation - Ductility - Failure modes - Plasticity - Steel;
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摘要：
Two-way steel-concrete composite beams have been widely used in large-span structures, such as floor system. However study on this type of structure is almost blank and simplified method used for design is not well developed. An experimental investigation was conducted on the two-way steel-concrete composite beams at ends of which concrete slab is continuous and steel beams are hinged, by a test of a 1/4 scale model. The behavior of beams and slab were tested and studied, including stain, deflection, cracks, ultimate resistance and deformation. It is failed in a typical two-way slab failure model, with high resistance and ductibility. Compared with the experimental result, it is valid to use yield line method to calculate ultimate resistance for design. From this paper, an experimental basis is provided for the theoretical calculation and application of this floor system.
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