摘要
弯梁桥在城市高架建设中被广泛应用,但由于其空间受力复杂,导致桥梁出现病害,影响其安全性与适用性,需对既有病害进行修复。选定某一工程实例,通过有限元分析对弯梁的维修方案进行比选,明确采用液压同步顶升系统进行维修施工,并进一步归纳该系统的优势。在详细分析液压同步顶升系统的施工流程、施工系统、纠偏与支座更换操作流程的基础上,通过分析监控数据,论证了此系统应用于弯梁纠偏及支座更换的可行性。
The curved beam bridge is widely used in modern city viaduct. Because the complexity of its space stress mechanism,diseases are often found in curved beam bridge which could harm structural safety and serviceability. For this reason,such sort of bridge should be repaired. In this paper,some repair schemes were compared via finite element analysis based on a real bridge project. It is decided that synchronous jack-up system should be used for this project. This system has many advantages,especially when it is used in curved beam bridge. It was discussed the feasibility of using the system for repairing curved bridge project,based on the analysis of synchronous jack-up system's construction process,construction system,correction and bearing-replacement operation process. Through the analysis of monitoring data,the usability of this system was demonstrated in this kind of engineering project. In the end,some recommendations were put forward for popularizing.
出处
《工业建筑》
CSCD
北大核心
2015年第6期175-178,共4页
Industrial Construction
关键词
同步顶升
弯梁
弯梁纠偏
支座更换
synchronous jack-up system
curved beam
correction of curved beam
besupport-replacement
