现代交通技术2025，Vol.22Issue(3)：50-53,58,5.
高速公路空心板梁桥改扩建处置方案研究
Research on the Disposal Scheme for the Reconstruction and Expansion of the Hollow Slab Beam Bridge on Expressway
柏超 1杨捷2
作者信息
- 1. 中交第二公路勘察设计研究院有限公司,武汉 430056
- 2. 武汉市城市道路桥隧事务中心,武汉 430014
- 折叠
摘要
Abstract
To determine the reconstruction and expansion scheme for an existing overpass hollow slab beam bridge on a expre-ssway,the results of comprehensive bearing capacity calculations and load tests were integrated,and various schemes were compared.The results indicated that the bearing capacity of the hollow slab beam bridge cannot meet the requirements of the current design load grade of the reconstruction and expansion,and the hinge joints are seriously damaged,resulting in the inconsistent transverse force behavior between hollow beams.In view of the conditional constraints on the reinforcement and modification of hollow slabs and the adjustment of bridge deck cross slopes due to the overpass of important railway lines on this bridge,three bridge reinforcement and modification schemes are proposed.A comprehensive compara-tive analysis is conducted with the full-bridge slab replacement scheme to study the reliability,economy and other indicators of different disposal schemes,in order to determine a reasonable reconstruction and expansion disposal scheme.关键词
既有桥梁/改扩建工程/空心板/承载力/处置方案Key words
existing bridge/reconstruction and expansion project/hollow slab/bearing capacity/disposal scheme分类
交通工程引用本文复制引用
柏超,杨捷..高速公路空心板梁桥改扩建处置方案研究[J].现代交通技术,2025,22(3):50-53,58,5.
