市政桥梁预制后张法简支空心板与预制后张法简支矮T梁设计比选分析  

Design Comparison and Analysis of Prefabricated Post-tensioned Hollow Plate With Simple Support and Prefabricated Post-tensioned Low T Beam With Simple Support in Municipal Bridge

作　　者：戴琦 Dai Qi(Fuzhou Planning&Design Research Institute Group Co.Ltd.,Fuzhou,Fujian 350001)

机构地区：[1]福州市规划设计研究院集团有限公司,福建福州350001

出　　处：《江西建材》2023年第10期147-148,151,共3页Jiangxi Building Materials

摘　　要：预制后张法简支空心板在市政桥梁建设中应用广泛,但其结构存在一定缺陷。近年来,部分地区市政桥梁开始采用预制后张法简支矮T梁以代替预制后张法简支空心板。文中结合某上跨既有河道的市政桥梁案例,将预制后张法简支空心板桥和预制后张法简支矮T梁进行设计比选分析,在满足实际使用需求、受力需求和安全性的前提下,针对两种结构的技术和经济指标进行了全面比对分析,为今后类似项目和预制后张法简支矮T梁的推广应用提供一定参考。Prefabricated post-tensioned hollow plate with simple support is widely used in the municipal bridge of China,during the operating period,some problems are found in this kind of structure.In the process of urban road construction during recent years,prefabricated post-tensioned hollow plate with simple support was replaced by prefabricated post-tensioned low T beam with simple support in the municipal bridge of some areas.In this paper,with a municipal bridge crossing existing river,the design comparison and analysis of prefabricated post-tensioned hollow plate with simple support and prefabricated post-tensioned low T beam with simple support are carried out,under the premise of meeting the actual using needs,force needs and safety needs,the technical and economic indicators of two kinds of structures are compared and analyzed comprehensively,it has certain guiding function for similar project and popularization and application of prefabricated post-tensioned low T beam with simple support in the future.

关 键 词：市政桥梁 预制后张法简支矮T梁 预制后张法简支空心板 设计比选分析 

分 类 号：U44[建筑科学—桥梁与隧道工程]