摘要
基于加筋木-混凝土组合梁受力特点,建立了加筋木-混凝土组合梁极限抗弯承载力计算模型,提出了组合梁极限抗弯承载力公式。为验证公式的正确性,设计并制作了四根加筋程度不同的木-混凝土组合梁构件。加载试验结果表明:理论推导公式与试验结果吻合较好,适用于加筋木-混凝土组合梁的极限抗弯承载力计算。同时结合极限抗弯承载力计算模型,提出了加筋木-混凝土组合梁尺寸设计方法,为木-混凝土组合梁的设计提供了参考。
Based on the mechanical behavior of reinforced timber-concrete composite(TCC)beams,the calculation model of the ultimate flexural capacity for reinforced TCC beams was established.Furthermore,the formula of flexural capacity was presented.In order to verify the correctness of the formula,four TCC beams with different reinforced degree were designed and built.Through the loading test,the results show that the formula is in good agreement with the test results,and can be applied to the calculation of ultimate flexural capacity of reinforced TCC beams.At the same time,combined with the calculation model of ultimate flexural capacity,the dimension design method of TCC beams has been put forward,which provides a reference for the design of reinforced TCC beams.
作者
袁帅
易锦
贺国京
YUAN Shuai;YI Jin;HE Guojing(College of Civil Engineering,Central South University of Forestry&Technology,Changsha 410004)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2019年第20期3419-3425,共7页
Materials Reports
基金
湖南省教育厅一般科研项目(17C1654)
国家林业局948项目(2014-4-51)
国家自然科学基金项目(51478485)~~
关键词
加筋木-混凝土组合梁
受力性能
荷载试验
极限抗弯承载力
尺寸设计
reinforced timber-concrete composite beams
mechanical behavior
loading test
ultimate flexural capacity
dimension design
