连续梁桥施工过程中线形应力的预测与监控分析

Analysis of Linear and Stress Prediction and Monitoring of Continuous Bridges During Construction Process

以宝兰客专牛谷河锦屏大桥的监控为实例,介绍了桥梁监控的有限元理论计算分析方法.通过对全桥施工过程中的位移和应力检测,及时对桥梁的施工结果进行分析和利用,使桥梁施工安全和线形质量处于受控状态,而且成桥后的结构线形和内力也满足设计要求.

Taking the Jinping Bridge in Niu Gu River as an example,we introduce the theory of finite element calculation and analysis of bridge monitoring. Displacement and stress of bridge is detected during the construction process. Meanwhile,the state of bridge construction is fed back so that the bridge construction safety and linear quality is in control. It turned out that the Linear and internal forces both meet the design requirements.