摘要
为探讨部分充填式窄幅钢箱-混凝土连续组合梁的变形情况,设计3片不同抗剪连接度的试验梁,并进行单调加载实验.考虑边界条件对刚度的影响,结合组合系数法,推导出适合部分充填式钢箱-混凝土连续组合梁的刚度计算式.理论分析与试验结果表明:在钢箱-混凝土连续组合梁的钢箱中部分充填混凝土可以提高梁体的刚度,当钢箱-混凝土连续组合梁的钢箱中充填60%的混凝土时,其刚度提高最明显,最为合适.
In order to investigate the deformation of partially filled steel box-concrete continuous composite beam,three groups of test beams with different shear connection were set up for monotonic loading.Considering the influence of boundary conditions on the stiffness and combining with the combination coefficient method,the stiffness calculation formula suitable for the steel box-concrete composite continuous beam was deduced.Theoretical analysis and experimental results show that partial filling of concrete in the beam can improve the stiffness of the beam,and under 60%of concrete filling,the effect of stiffness improvement is the most obvious and most appropriate.
作者
莫时旭
蒋越
郑艳
韩涛
MO Shixu;JIANG Yue;ZHENG Yan;HAN Tao(College of Civil Engineering and Architecture,Guilin University of Technology,Guilin 541004,China;Guangxi Key Laboratory of Building New Energy and Energy Saving,Guilin University of Technology,Guilin 541004,China)
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2020年第1期32-38,共7页
Journal of Huaqiao University(Natural Science)
基金
国家自然科学基金资助项目(51108109,51168011)
广西建筑新能源与节能重点实验室开放研究基金资助项目(桂科能17-J-21-4)。
关键词
连续组合梁
钢箱-混凝土
剪力连接度
刚度
continuous composite beam
steel box-concrete
degree of shear connection
stiffness
