整体式桥台桥梁的桥台结点受力性能研究  

Study of loaded property of abutment node of integral abutment bridges

作　　者：彭大文[1] 陈朝慰[2] 洪锦祥[2] 

机构地区：[1]上海应用技术学院土木与建筑工程系,上海200235 [2]福州大学土木建筑工程学院,福建福州350002

出　　处：《中国公路学报》2005年第1期46-50,共5页China Journal of Highway and Transport

基　　金：福建省交通厅;公路局联合资助项目(200014)福建省计委资助项目(200364)

摘　　要：提出了整体式桥台桥梁的桥台一般构造和施工建造顺序,并以福建省上坂大桥为工程背景,通过建立空间有限元梁格体系和块体模型,分析了不同工况下整体式桥台桥梁的桥台结点内力和应力以及墩柱的裂缝状况,在参数分析中,引入了相对刚度的概念,探讨了桩的相对刚度和桥台高度对桥台结点受力性能的影响,初步研究了该类桥梁的桥台结点受力性能。研究结果将有助于整体式桥台桥梁在工程设计中的实际应用。The structure and constructional sequence of the abutment of integral abutment bridges are brought out. On the basis of Shangban Bridge, the inner force and the stress of the abutment node, and the cracks of the stabs are analyzed under the act by several load cases through building the dimensional beam model and solid model. The concept of the relative stiffness is brought out, and the effect of the pile relative stiffness and the abutment height on the loaded property of the abutment node has been discussed. The researching results will promote to design integral abutment bridges in the engineering.

关 键 词：桥梁工程 桥台结点 有限元方法 受力性能 整体式桥台桥梁 

分 类 号：U443.21[建筑科学—桥梁与隧道工程]