某重载铁路连续刚构桥梁健康监测方案设计

某重载铁路为预应力混凝土箱形变截面连续刚构桥，施工期间出现严重病害，后经加固补强后投入运营。为确保桥梁运营安全，对该桥进行了健康监测系统方案设计，以对温度、应力、变形、振动等参数进行实施监测。该健康监测方案设计主要包含设计原则、数据监测、测点布设及系统架构等方面。该桥已通车安全运营6年多，按设计安装的桥梁健康监测系统运行良好，可为类似桥梁健康监测系统设计提供参考借鉴。

Design of Health Monitoring System for Continuous Rigid Frame Bridge in Heavy Haul Railway

A heavy haul railway bridge was pre-stressed concrete continuous rigid frame bridge. Its main girder was variable cross-section box girder and the beam occurred serious diseases during construction. After reinforcement，the bridge was put into operation. To ensure the operational safety of the bridge，the health monitoring system program was designed for the bridge to implement monitoring of parameters such as temperature，stress，deformation and vibration. The design of the health monitoring program includes the design principles，data monitoring，measurement point placement and system architecture. The bridge has been safely used for over 6 years and the designed bridge health monitoring system installed on the bridge is working well. This example can provide a reference for the design of similar bridge health monitoring system.