| 地基梁配筋设计方法研究 |
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| 引用本文： | 汪基伟,赵曰平.地基梁配筋设计方法研究[J].河海大学学报(自然科学版),2006,34(5):542-545. |
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| 作者姓名： | 汪基伟 赵曰平 |
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| 作者单位： | 1. 河海大学土木工程学院,江苏,南京,210098
2. 江苏省水利厅,江苏,南京,210029 |
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| 基金项目： | 江苏省水利科技资助项目 |
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| 摘 要： | 采用非线性钢筋混凝土有限单元法,同时考虑工作和钢筋混凝土的材料非线性特性,对较多地基梁算例进行了有限元计算,得出地基梁和位移随钢筋用量的变化规律,并根据该规律指出地基梁可不进行承载能力极限状态计算,钢筋用量由正常使用极限状态允许裂缝宽度来确定的概念,给出了地基梁裂缝宽度计算公式,形成了新的地基梁配筋设计方法.
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| 关 键 词： | 地基梁 配筋设计方法 弯矩 混凝土裂缝 钢筋混凝土有限单元法 |
| 文章编号： | 1000-1980（2006）05-0542-04 |
| 收稿时间： | 2005-04-04 |
| 修稿时间： | 2005-04-04 |
Reinforcement design for beam on foundation |
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| WANG Ji-wei,ZHAO Yue-ping.Reinforcement design for beam on foundation[J].Journal of Hohai University (Natural Sciences ),2006,34(5):542-545. |
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| Authors: | WANG Ji-wei ZHAO Yue-ping |
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| Institution: | 1. College of Civil Engineering, Hohai University, Nanjing 210098, China ; 2. Jiangsu Provincial Department of Water Resources, Nanjing 210029, China |
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| Abstract: | In consideration of the nonlinearity of soil and reinforced concrete,a lot of beams on foundation are analyzed by use of reinforced concrete finite element method for evaluation of influences of reinforcement ratio on behavior of the beams.According to the regulation of bending moment and displacement of beams varying with the reinforcement ratio obtained in above research,a new reinforcement design method for beams on foundation is put forward,in which the amount of reinforcement is determined only based on the allowable crack width of beams in serviceability limitid state,while the ultimate strength design is not required.Moreover,the formula for calculation of crack width of beams on foundation is also derived. |
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| Keywords: | beam on foundation reinforcement design method bending moment concrete crack reinforced concrete finite element method |
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