面向全过程的桥梁安全受控系统设计

Bridge safety control system design based on process-cycle

目前的桥梁安全受控主要面向桥梁全寿命期内的单一阶段,不能反映桥梁安全受控的本质。桥梁全过程安全受控以支持群体间的协同工作为目标,通过模型调整建立了桥梁有限元模型与桥梁状态的对应关系,建立了基于有限元模型的群体协同工作模式,并提出了协同工作实施过程的敏感性参数选择算法、模型调整算法、过程解析算法,实现了有限元分析系统与安全受控系统的集成。算例分析表明,全过程安全受控能够将分阶段实施的桥梁安全受控转化为多群体参与的协同安全受控,有助于提高桥梁安全受控的效率和质量。

Safety control is an important problem that can significantly affect the future condition of bridge. However,the nature of traditional safety method is only suitable for one stage of bridge process-cycle. The aim of the process-cycle safety control is the improvement of supporting collaborative work among groups. Firstly,the relationship of finite element model and bridge condition is built by model modification and the collaborative work mode is proposed based on finite element model. Secondly,the FEA system is integrated with safety control system by proposed algorithm including sensitivity parameters choose,model modification and process analysis which supporting collaborative work flow. Finally,an example is shown to highlight the procedure of the process-cycle safety control. The results show that the proposed system is feasibility and contribute to improve efficient and quality of bridge safety control.