期刊论文

Bending stiffness analysis of glued Timber-Concrete Composite(TCC) beam

中文

建筑科学

1002-8528

2018

34

5

17-22

10.13614/j.cnki.11-1962/tu.2018.05.003

国家林业局948项目（2014-4-51）； 国家自然科学基金项目“现代木-混凝土组合结构桥梁设计理论及应用基础研究”（51478485）； 湖南省教育厅一般科研项目“现代木-混凝土组合结构构件共同工作性能试验研究”（17C1654）；

本校为第一机构

结合正常使用阶段胶合木-混凝土组合梁的梁截面受力特点和对试验资料分析,建立了胶合木-混凝土组合梁刚度计算模型,提出了考虑滑移影响后的简化抗弯刚度公式,使组合梁的抗弯刚度公式得到优化。为验证公式正确性,设计并建造了3根剪力连接程度不同的胶合木-混凝土组合梁构件。通过加载试验,结果表明:理论推导公式与试验结果吻合较好,传统抗弯刚度计算公式不再适用于组合梁,应给以适当折减。

The characteristics of beam section and analysis of experimental data are analyzed by using the composite beam of glued Timber-Concrete Composite (TCC) beam in normal service stage. The calculation model of glued Timber-Concrete Composite (TCC) beam is established. The simplified flexural stiffness formula considering the influence of composite beam slippage is proposed. The bending stiffness formula of the composite beam is optimized. In order to verify the correctness of the formula, three kinds of glued Timber-Concrete Composite (TCC) beam with different shear connections are designed and c...