摘要
为改善钢-混组合结构连续梁中支点负弯矩区受力,以山西省综改区潇河产业园太原起步区某桥梁工程为例,通过采用支座位移法来施加预应力,研究了不同支点位移量对钢-混组合结构连续梁桥受力变化的影响规律。针对U01联,通过采用支座位移法解决了边墩支点反力储备不足问题,相比于常规的支点压重等手段节省工程造价,可为今后类似项目提供参考。
To improve the stress in the negative bending moment zone of the support point in the steel-concrete composite structural continuous girder,taking a bridge project in the starting area of Taiyuan in Xiaohe Industrial Park in Shanxi Transformation Comprehensive Reform Demonstration Zone as an example,by using the support displacement method to apply priestess,the influence rule of different support point displacements on the stress change of the steel-concrete composite structural continuous girder is studied.For the U01 joint,the problem of insufficient reserve of reaction force at the support points of the side pier is solved by using the support displacement method.Compared with the conventional methods such as support point weighting,the engineering costs are saved,which can provide reference for similar projects in the future.
出处
《城市道桥与防洪》
2024年第5期88-91,M0010,共5页
Urban Roads Bridges & Flood Control
基金
同济大学建筑设计研究院(集团)有限公司科研项目(2019KY9)。
关键词
钢-混组合连续梁
支点回落
内力调整
steel-concrete composite continuous girder
support point falling back
internal force adjustment
作者简介
张利平(1990-),男,硕士,工程师,从事桥梁工程设计工作。
