| 考虑层间滑移效应的组合梁解析计算 |
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| 引用本文： | 苗林,陈德伟. 考虑层间滑移效应的组合梁解析计算[J]. 同济大学学报(自然科学版), 2011, 39(8): 1113-1119. DOI: 10.3969/j.issn.0253-374x.2011.08.003 |
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| 作者姓名： | 苗林 陈德伟 |
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| 作者单位： | 同济大学桥梁系,上海,200092 |
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| 摘 要： | 将双层组合梁的接触面模拟成Goodman弹性夹层,用Goodman弹性夹层法分析双层组合梁在弹性工作阶段的滑移、内力及挠度与荷载之间的关系.分别针对简支梁、悬臂梁在多种荷载作用下,根据边界条件计算出梁在该荷载约束条件下的内力、滑移和挠度分布规律,通过“滑移附加弯矩”引入层间相对滑移对组合梁的影响.该理论公式既能描述组合...
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| 关 键 词： | 双层组合梁 弹性夹层 滑移附加弯矩 挠度 截面应力 |
| 收稿时间： | 2010-06-07 |
| 修稿时间： | 2011-06-01 |
Closed form Solution of Composite Beam Considering Interfacial Slip Effects |
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| MIAO Lin and CHEN Dewei. Closed form Solution of Composite Beam Considering Interfacial Slip Effects[J]. Journal of Tongji University(Natural Science), 2011, 39(8): 1113-1119. DOI: 10.3969/j.issn.0253-374x.2011.08.003 |
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| Authors: | MIAO Lin and CHEN Dewei |
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| Affiliation: | Department of Bridge Engineering, Tongji University,Department of Bridge Engineering, Tongji University |
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| Abstract: | Based on Goodman model, which is used for simulating the contact surface between beams, this paper analyzes the relationship interfacial slip of composite beam, internal force, deflection and load in elastic state. For the simply-supported and cantilever beams subjected to variety of loads, the impacts on deformation due to the interfacial slip are considered through the "additional slip bending moment". This theoretical formula can describe the law of slip, deflection and sectional stress distribution. The closed-form solutions are then validated by means of finite element analysis. All the theoretical formula in the paper which reflects the structural mechanism can simplify calculation of interfacial slip effects of composite beam. |
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| Keywords: | bi-layer composite beam elastic interlayer additional slip bending moment deflection section stress |
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