衡量一座桥梁的施工质量标准就是其成桥状态的线形以及受力情况与设计要求的相符程度。然而桥梁在施工过程中将受到诸多因素的影响,导致其结构的实际状态与理论计算状态相偏离。桥梁施工控制主要是通过对施工过程中出现的偏差进行分析识别,发现问题并及时进行纠偏,同时对结构的后续阶段进行预测,使最终成桥状态(包括成桥线形与结构内力)满足设计要求。该文以太原市北中环桥为例,该桥为五跨反对称五拱反对称索面斜拉桥。基于该桥构造独特,施工中钢拱线形控制难度大等特点,特结合相关有限元软件对桥梁的施工过程进行仿真模拟,制定出合理的线形及应力控制方案。 Measuring the quality of a bridge construction standards is the state of the line into the state and stress and the design requirements of the match. However, the bridge will be affected by many factors in the construction process, resulting in the deviation of the actual state of the structure from the theoretical calculation. Bridge construction control is mainly through the analysis and identification of the deviation occurred during the construction process to identify problems and timely correction, while the structure of the subsequent stages of prediction, the final state of the bridge (including the formation of the bridge and structural forces) to meet the design requirements . This paper takes North Central Ring Bridge of Taiyuan City as an example. The bridge is a five-span antisymmetric five-arch antisymmetric cable-stayed bridge. Based on the unique structure of the bridge and the difficulty in controlling the linearity of the steel arch during construction, the construction process of the bridge is simulated with the relevant finite element software to develop a reasonable linear and stress control scheme.