大跨径连续梁桥施工控制技术研究

【作者】 刘菁华；

【导师】 杨炳成；

【作者基本信息】 长安大学 ， 桥梁与隧道工程， 2002， 硕士

【摘要】 本文以飞云江大桥施工控制为依托，对大跨径连续梁桥的施工监测技术和施工控制系统进行了研究。 论文对桥梁施工参数进行了分析，探讨了主要施工参数对结构的内力、位移等方面的影响，提出了预应力连续梁桥施工控制的监测方法和内容，进而提出对施工参数进行识别与调整的一般内容与方法。根据大跨径连续梁桥的特点，通过对现有控制方法的研究与对比分析，提出采用灰色系统理论进行结构参数估计并进行反馈控制的技术体系，然后进行了实桥应用与验证。更多还原

【Abstract】 On the basis of the construction control of Feiyunjiang Bridge,this paper studies the construction monitoring technology and the construction controlling technology of the continuous bridge.Through the analysis of the construction parameters, the paper discusses the influence of structural inner force and displacement caused by the main construction parameters. The article raises monitoring content and method of the prestressed concrete continuous bridge, and raises general content and method in construction parameter adjustment. According to the performances of the prestressed concrete continuous bridge, the paper, through study and contrasting analysis of the existing forecasting monitoring methods, raises a technical system of using grey theory to estimate the construction status parameter and carries out feedback control, which is, later, applied to the real bridge and gets verification.更多还原