大截面混凝土箱梁结构的计算方法及其应用  

An analytical method and its application for large-section PC box girder bridges

作　　者：陈衡治[1] 谢旭[1] 陈海滨[1] 黄剑源[2] 

机构地区：[1]浙江大学,浙江杭州310027 [2]宁波大学,浙江宁波315211

出　　处：《土木工程学报》2006年第4期26-31,共6页China Civil Engineering Journal

摘　　要：为了用少量单元获得高精度的混凝土箱梁空间应力计算结果,提出考虑截面形状组成并在梁轴方向应用高阶位移插值函数的中厚板梁段结构分析方法。以杭州湾跨海大桥非通航孔桥梁的设计方案为例,与三维实体有限元计算结果的比较表明,该方法在梁纵向只需划分少量单元就可以得到高精度的结果,适用于壁厚变化的大截面混凝土箱梁桥结构的计算分析。In order to obtain accurate spatial stresses of box girder with a small number of elements, an analytical method for large-section PC box girders is proposed. A higher order displacement function in the axial direction is introduced, and the section composition is considered. Taking the Hangzhou Bay Bridge as an example, both 3-D solid FEM and the proposed method are compared. The results indicate that high accuracy can be achieved with a small number of elements by using the proposed method.

关 键 词：大截面 箱梁桥 板梁段 结构分析 

分 类 号：TU528.571[建筑科学—建筑技术科学]