部分充填混凝土连续组合梁桥支座处截面极限强度的塑性理论分析  

Plasticity Theory Analysis about the Bearing Section Limited Strength of Partial Filling Concrete Continuous Composite Girder Bridge

作　　者：姬幸斌[1] 李文兴[1] 吴建明[2] 

机构地区：[1]桂林理工大学土木与建筑工程学院,广西桂林541004 [2]沈阳建筑大学城市建设学院,沈阳110168

出　　处：《湖南城市学院学报（自然科学版）》2012年第3期1-5,共5页Journal of Hunan City University:Natural Science

摘　　要：部分充填混凝土窄幅钢箱连续组合梁桥是钢箱-混凝土组合梁与矩形钢管混凝土结构结合的一种新型组合结构梁桥.基于一般钢箱-混凝土连续组合梁桥中支座负弯矩区因混凝土翼板开裂而导致抗弯强度、局部稳定性不足的特点,提出了一种部分充填混凝土窄幅钢箱连续组合梁桥,并对其中支座负弯矩区的正截面强度和支座截面抗剪性能进行了塑性理论分析.The narrow range of steel box continuous composite girder bridge that partially filled concrete is a new type of bridge which is composited by steel box-concrete composite girder and rectangular steel tube concrete. As the disadvantage that wing crack in negative moment region causing insufficient of bending strength and local stability of traditional steel box continuous composite girder bridge,a narrow range of steel box continuous composite girder bridge is presented. Then, the plasticity theory analysis is used on normal-section strength of bearing negative moment region and on cross-section support bearing shear performance.

关 键 词：部分充填混凝土 连续组合梁桥 极限强度 塑性分析 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]