期刊论文

中文

四川建筑科学研究

1008-1933

2019

45

1

42-47

10.19794/j.cnki.1008-1933.2019.01.008

51478485:国家自然科学基金 2014-4-51:引进国际先进林业科学技术项目项目) 17C1654:湖南省教育厅一般科学研究项目

本校为第一机构

为了揭示木-混凝土组合梁受力性能,设计、制作了3根剪力连接水平不同的木-混凝土组合梁模型。通过静力加载试验,得到了荷载-滑移曲线、荷载-挠度曲线和组合梁跨中应变分布。研究表明:在相同荷载作用下,组合梁的交界面相对滑移、跨中挠度、承载力随着剪力连接度的降低而递减;随着荷载增加,交界面相对滑移量增大,组合梁不再符合平截面假定;传统抗弯刚度计算公式不再适用于组合梁,应给予适当折减。

In order to reveal the mechanical properties of Timber-Concrete Composite(TCC)beam,three different levels of shear connection Timber-Concrete Composite(TCC)beams have been designed and constructed.Through the static loading test,the load-slip curve,the load-deflection curve and the strain distribution across the mid span beam were obtained.The results show that under the same load,the relative slip,the mid span deflection and the bearing capacity of Timber-Concrete Composite(TCC)beam decrease with the decrease of the shear connection.With the increase of load,the relative slip of the interface...