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桥梁施工监控是桥梁施工的重要内容,施工监控以成桥状态为目标,在整个施工过程中,通过实时监测桥梁的施工状态和环境状态,获得桥梁结构实际状态与理想状态之间的偏异,通过对这些偏差进行识别、计算、分析,在此基础上调整桥梁的施工状态,使之最大限度地接近理想状态,最终保证其成桥线形和受力情况符合设计要求。针对高速铁路斜交连续箱梁桥的特点对施工监控方法进行了研究,并将这一方法运用于京沪高速铁路桥梁的施工监控中,保证了桥梁悬臂施工中跨合龙时满足高速铁路无砟轨道的辅轨要求。
Bridge construction monitoring is an important part of the construction of the bridge. The construction monitoring takes the bridge construction as the goal. During the whole construction process, the bridge construction status and environment status are monitored in real time to obtain the deviation between the actual state and the ideal state of the bridge structure. By identifying, calculating and analyzing these deviations, on this basis, the construction status of the bridge is adjusted so as to be close to the ideal state to the maximum extent, and finally the line shape and stress of the bridge are ensured to conform to the design requirements. In view of the characteristics of the skew continuous box girder bridge of high-speed railway, the construction monitoring method is studied and applied to the construction monitoring of Beijing-Shanghai high-speed railway bridges to ensure that the high-speed railway Auxiliary track requirements.