[1]莫时旭,胥海宁.部分充填式钢箱-砼组合梁考虑滑移和剪切变形的变分解法[J].华侨大学学报(自然科学版),2016,37(2):234-240.[doi:10.11830/ISSN.1000-5013.2016.02.0234]
　MO Shixu,XU Haining.Energy Variational Method to Analyze Concrete-Partial-Filled Steel Box Composite Beam Considering Shear Deformation and Slip Effect[J].Journal of Huaqiao University(Natural Science),2016,37(2):234-240.[doi:10.11830/ISSN.1000-5013.2016.02.0234]
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部分充填式钢箱-砼组合梁考虑滑移和剪切变形的变分解法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第37卷
期数:
2016年第2期
页码:
234-240
栏目:
出版日期:
2016-03-20

文章信息/Info

Title:
Energy Variational Method to Analyze Concrete-Partial-Filled Steel Box Composite Beam Considering Shear Deformation and Slip Effect
文章编号:
1000-5013(2016)02-0234-07
作者:
莫时旭1; 2;  胥海宁1
1. 广西岩土力学与工程重点实验室, 广西 桂林 541004;2. 桂林理工大学 土木与建筑工程学院, 广西 桂林 541004
Author(s):
MO Shixu1; 2;  XU Haining1
1. Guangxi Key Laboratory of Rock-Soil Mechanic and Engineering, Guilin 541004, China; 2. College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China
关键词:
部分充填式钢箱-砼组合梁;  负弯矩区;  变分法;  滑移变形;  剪切变形
Keywords:
concrete-partial-filled steel box composite beam;  negative moment region;  energy variational method;  slip deformation;  shear deformation
分类号:
TU398.9
DOI:
10.11830/ISSN.1000-5013.2016.02.0234
文献标志码:
A
摘要:
为研究滑移和剪切变形对部分充填式钢箱-混凝土组合梁变形影响,基于Timoshenk两广义位移理论和能量变分原理,提出组合梁变分计算模型和假定.利用最小势能原理并结合边界条件,分别推导考虑双重变形模式的简支组合钢箱梁负弯矩区滑移微分方程、挠度及附加弯矩的联合弹性解析解.对比两根不同抗剪连接程度组合梁的实测值及理论公式计算值,分析结果表明:在弹性阶段运用变分法推导的挠度及其滑移计算值与实测值相吻合,从而证明了理论公式的有效性.
Abstract:
In order to study the influence of slip and shear deformation to the deformation of concrete-partial-filled steel box composite beams, the differential equations and boundary conditions are established. Based on the generalized displacement theory and energy variational principle of Timoshenk beam, the model and the assumption of the composite beam variational calculation are presented. The combined elastic analytical solutions of the differential equations, deflection and additional moment of the negative moment region of the simple supported composite box girder with double deformation modes are derived by the minimum potential energy principle. Compared with the measured values and theoretical formulas of two composite beams with different shear connection degrees, it’s shown that the deflection and slip calculated by the variational method in the elastic stage agree with the measured values, which proves the validity of the theoretical formula.

参考文献/References:

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[8] 贺桂超,周凌宇.考虑剪切和界面滑移的钢-混凝土组合箱梁变分解法[J].中南大学学报(自然科学版),2012,43(11):34-37.
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备注/Memo

备注/Memo:
收稿日期: 2015-10-24
通信作者: 莫时旭(1964-),男,教授,博士,主要从事钢-混凝土组合结构的研究.E-mail:moshixuwh@yahoo.com.cn.
基金项目: 国家自然科学基金资助项目(51168011, 51108109); 广西岩土力学与工程重点实验室科研基金资助项目(11-CX-05)
更新日期/Last Update: 2016-03-20