独塔四索面空间异型斜拉桥施工控制技术

宁波外滩大桥主桥为独塔四索面异型斜拉桥结构，为保证全桥结构在施工过程中和成桥状态下的安全和稳定性，确保成桥状态的线形和结构内力符合设计要求，进行了施工模拟计算和分析。在各个主要施工阶段分别监测主塔应力和线形、主梁应力和线形、斜拉索索力，通过监测数据判断施工过程中各项控制内容是否符合要求，从而确定此研究控制理论和方法在工程实例中的可行性。

Construction Controlling Technology of a Spacial Irregular Shape Cable-stayed Bridge with a Single Pylon and Four Cable Planes

The main bridge of the Waitan Bridge in Ningbo has a spatial irregular shape cable-stayed bridge with a single pylon and four cable planes.To ensure the whole bridge structure security and stability in the construction and bridge completion process,and the linear and structure internal force meet the design requirements in bridge completion status,construction simulation calculation and a-nalysis was performed.The main tower stress and linear,the main girder stress and linear,and the cable force was monitored in main stages of construction,which can decide whether the main control content meet the requirements and determine the feasibility of the control theory and method in prac-tice.