双联体独塔斜拉桥施工控制技术研究

【作者】 赵云；

【导师】 徐岳；

【作者基本信息】 长安大学 ， 桥梁与隧道工程， 2001， 硕士

【摘要】 本文在总结国内外斜拉桥施工控制技术的基础上，以青岛丹山斜拉桥为工程背景，就双联体独塔斜拉桥施工控制问题，有针对性的展开研究。结合丹山桥的结构特点，通过对斜拉桥施工控制及结构计算方法的探讨，提出了有效的施工控制系统，实现了对实桥施工数据和技术信息的采集；通过分析理论计算与实际施工状态的差异，确定了以卡尔曼滤波法作为施工参数识别与调整的自适应施工控制方法；通过正装迭代法确定其合理施工状态，并考虑混凝土的徐变效应，提出了合理的预留拱度和索力调整方案。 本文研究证明自适应施工控制是目前较好的斜拉桥施工控制方法，卡尔曼滤波法能够对斜拉桥的施工过程进行有效的预测控制。通过青岛丹山斜拉桥的成功运用，表明本文提出的监测和监控方法是切实可行的，取得了良好的控制效果。更多还原

【Abstract】 Based on summing up construction controlling technology of cable-stayed bridges of home and abroad, taking QingDao DanShan cable-stayed bridge as project background, this paper has a particular study to the construction controlling for the twin-united body one pylon cable-stayed bridge. Combining with the performances of DanShan bridge, discussing the methods on the construction controlling and calculation of cable-stayed bridge, this paper raises an efficient construction controlling system, and realizes collecting construction data of the real bridge and technical information. By analyzing on the difference of theoretical calculation and real construction state, the author determines to take self-adapting construction controlling method which uses Kalman filter method to identify and adjust construction parameters. By getting rational construction state from forward iteration method, this paper, taking concrete creep effect in consideration, raises a rational scheme to pre-remain deformation and adjust cable force.The paper verifies that the self-adapting construction controlling is a good method among the existing ones of the cable-stayed, and that Kalman filter method can forecast the cable-stayed construction proceed efficiently. The successful application to the QingDao DanShan cable-stayed bridge verifies that the monitoring and controlling method raised in this paper is practicable and get good controlling effect.更多还原