作　　者： ; (张建民）;

机构地区： 广州市市政工程安全质量监督站广东广州510050

出　　处： 《桥梁建设》 2006年第2期50-53,共4页

摘　　要： 采用空间非线性有限元对某预应力混凝土斜拉桥的施工加载过程进行了分析,结合有限元步进法、一阶分析法和按龄期调整的有效模量法,编制了相应的计算程序。根据该桥实际划分的施工时段,计算桥梁从施工到成桥任一时刻主梁和主塔受力和变形状态,并提出了一些有益的建议。 The spatial nonlinear finite element is used to analyze construction loading process of a prestressed concrete cable stayed bridge. By way of step-by-step method of the finite element, the first-order analysis method and effective modulus method based on concrete age adjustment, the corresponding computation program is compiled. Further in the light of the actually-divided construction stages of the bridge, the mechanical behavior and deformation conditions of the main girder and pylons of the bridge at any time from the construction stage to completion stage are computed, and accordingly some helpful proposals are put forward as well.

关 键 词： 斜拉桥 预应力混凝土桥 施工控制 仿真计算

领　　域： [建筑科学] [交通运输工程]