剪力柔性梁格法直线混凝土连续梁分析研究  

Study on analysis of flexible shear grillage method on concrete linear continuous beam

作　　者：程斌[1] 苏小梅[1] CHENG Bin;SU Xiaom ei(Institute Of Civil Engineering, Wuhan City Vocational College,Wuhan,Hubei 430064,China)

机构地区：[1]武汉城市职业学院建筑工程学院,湖北武汉430064

出　　处：《江苏建筑职业技术学院学报》2017年第4期12-15,共4页Journal Of Jiangsu Vocational Institute of Architectural Technology

摘　　要：为了验证梁格法分析箱梁结构计算结果的可靠性与准确性,对常见的等截面普通混凝土连续梁和变截面预应力混凝土连续梁进行了分析,对普通混凝土连续梁建立实体有限元模型进行了验证,给出了梁格法建立剪力柔性梁格的实用方法和结论.结果表明:剪力柔性梁格法简单易行,能充分考虑箱梁横向的受力特性,使梁格节点与实际结构重合的点,承受相同挠度和转角.梁格产生的内力局部静力等效于结构的内力,能保证足够的精度,满足一般工程设计要求.In order to verify the reliability and accuracy of the calculation of the box girder struc-ture,this paper analyzes the common cross-section of concrete continuous beam and variable cross-section of the prestressed concrete continuous beam with the beam grillage method,and verifies the finite element model of ordinary concrete continuous beam,then some useful conclu-sions such as the practical method of establishing flexible beam shear are drew.The results show that the shear flexible grillage method is simple and practical?in which the box girder transverse force characteristics can be taken into full consideration,also the beam girder node and super-posed points of the actual structure are under the same deflection and rotation,so the internal force generated by the box girder equals to the internal structure force,which can guarantee suf-ficient accuracy to meet the requirements of the general engineering design.

关 键 词：剪力柔性梁格法 刚度 实体有限元 连续梁 箱型截面 

分 类 号：U4425[建筑科学—桥梁与隧道工程]