S3公路工程中小箱梁的运用  

Application of Small Box Beam in S3 Highway Project

作　　者：李莉 LI Li

机构地区：[1]上海市政工程设计有限公司,上海市200438

出　　处：《城市道桥与防洪》2021年第9期98-101,M0011,共5页Urban Roads Bridges & Flood Control

摘　　要：S3公路(周邓公路-G1503公路两港大道立交)新建工程中后张法预应力混凝土小箱梁的运用情况介绍,比较了小箱梁与其他结构的优势。在工程中结构及断面的运用及优化情况。简单介绍小箱梁计算参数与应力控制,简支变连续小箱梁在小半径立交范围内的运用,小箱梁在施工过程中需要注意的问题。The application of post-tensioned prestressed concrete small box beams in the new construction of S3 Highway Project(Zhoudeng Highway-G1503 Highway Lianggang Avenue Interchange)is introduced.The advantages of the small box beam are compared with the other structures.The application and optimization of the structures and sections in the project are described.The calculation parameters and stress control of small box beam are briefly introduced.The application of simple-supported to continuous small box beam in the small-radius interchange is introduced.The problems are required for attention in construction of small box beam.

关 键 词：后张法预应力混凝土小箱梁 简支变连续 小半径立交 施工注意事项 

分 类 号：U448.21[建筑科学—桥梁与隧道工程]