下沉式楼面板结构受力性能数值分析

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NUMERCIAL STUDY OF MECHANICAL BEHAVIORS OF SLAB WITH CONCAVE

1.
1. Qinghai Architectural Vocational and Technical College,Xining 810012,China;
2.
2. Chongqing Architectural Design Institute,Chongqing 400015,China;
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3. The Architectural Design Research Institute of Guangdong Province,Guangzhou 510010,China;
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4. College of civil Engineering,Chongqing University,Chongqing 400045,China

摘要: 在冷轧带肋钢筋下沉式楼面板受力性能试验研究基础上,利用ABAQUS有限元软件建立了2个沉板有限元模型,通过变形、钢筋应力、混凝土损伤等与试验的对比分析,验证了所选模型的可靠性。在此基础上,进一步考察了板厚、下沉板区域大小及钢筋强度对下沉板楼面受力性能的影响,并完成了普通双向平板与沉板的非线性有限元对比分析。结合分析结果,明确了此类沉板受力性能、变形特点,给出了设计建议。
- 沉板 /
- 冷轧带肋钢筋 /
- ABAQUS /
- 有限元分析
Abstract: Two concave slabs were modeled by ABAQUS based on the experimental researches on cold-rolleddeformed bar reinforced slabs with concave, comparisons of deformations, steel strains, concrete damages et albetween the test and finite element method analysis indicate the modeling analyses are appropriate．The effects of slabthickness, concave area and steel strength on performance of slab were checked, and comparisons of nonlinear FEManalysis between concave slab and normal two-way slab were made．Combined with the analysis results, deformationcharacteristics and performances of slabs of this type are clarified, and design suggestions are proposed．
- concave slab /
- cold-rolled deformed bars /
- ABAQUS /
- finite element analysis