连续刚构桥施工监控理论及监控系统研究

发布时间：2018-04-01 18:50

本文选题：刚构桥　切入点：施工监控　出处：《长安大学》2014年硕士论文

【摘要】：随着预应力混凝土连续刚构桥的应用越来越广，跨径越来越大，墩高越来越高，设计和施工风险也相应的增大，特别是桥梁施工期和运营期事故频繁发生，，为了加强公路桥梁工程的质量、安全管理，优化工程建设方案，避免工程事故的发生，提高工程建设安全性，同时为了保证刚构桥梁施工安全，必须施工过程，特别是对主梁悬浇的整个过程进行施工监控，根据公路桥涵设计规范进行结构验算，对施工方案模拟分析，对其可行性做出评价，并提出合理建议，实时监测结构的应力、温度、几何状态，提供安全预警，提出施工调整值，确保结构应力、线形符合设计要求。以汉江大桥为实例，通过建立其变形、应力的监控系统设计，对桥梁结构进行仿真计算，并对悬臂浇筑施工中进行结构变形控制、结构应力控制、结构稳定控制、结构安全控制，形成一套完整的监控方法和监控技术。
[Abstract]:With the application of prestressed concrete continuous rigid frame bridge is more and more extensive, the span is larger and bigger, the pier height is higher and higher, the design and construction risk also increases correspondingly, especially the bridge construction period and the operation period accident frequently occurs. In order to strengthen the quality and safety management of highway bridge engineering, optimize the project construction scheme, avoid the occurrence of engineering accidents, and improve the safety of engineering construction, in order to ensure the construction safety of rigid frame bridge, the construction process must be ensured. Especially, the construction monitoring of the whole process of the main beam is carried out, the structural checking calculation is carried out according to the design code of the highway bridge and culvert, the simulation analysis of the construction scheme is made, the feasibility of the construction scheme is evaluated, and reasonable suggestions are put forward to monitor the stress of the structure in real time. Temperature, geometric state, provide safety warning, put forward the construction adjustment value to ensure that the structural stress and alignment meet the design requirements. Taking Hanjiang Bridge as an example, through the design of monitoring system of deformation and stress, the bridge structure is simulated and calculated, and the structural deformation control, structural stress control and structural stability control are carried out in the construction of cantilever pouring. Structure safety control, form a set of complete monitoring method and monitoring technology.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U448.23;U445

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