PLC整体同步控制技术在连续梁桥纠偏中的应用

该文对连续箱梁弯桥向曲线内侧滑移进行了介绍和分析,采用PLC液压同步控制系统将连续梁桥同步整体顶升,解除原有支座等部件对桥梁的约束作用,建立以千斤顶为支承的新体系。通过对千斤顶和支撑接触面的处理来降低横向纠偏的摩阻力,然后用安装在侧面的千斤顶对桥梁进行纠偏复位。该工艺为今后类似结构的纠偏加固施工提供借鉴。

Application of PLC Integral Synchronizing Control Technology in Rectifying Deviation of Continuous Beam Bridge

The article introduces and analyzes the continuous box beam of bend bridge slipping to the inner side of curve.PLC hydraulic synchronizing control system is used to synchronously and integrally lift so as to release the inhibiting action of the components,i.e.original support and so on to the bridge and to set up the new system taking the jack as the supporting.The interfaces of jack and supporting are treated to decrease the friction force of transversely rectifying deviation,and then the jack installed at the side is used to rectify deviation to replace of bridge beam.The technology provides the reference for the deviation rectifying and reinforcing construction of the similar structures in the future.