| In recent years,the rapid development of bridge construction in our country,especially the construction of large highway bridges are increasing,the technical content of the corresponding requirements,construction difficulty,operation and management of complex questions in many aspects such as the following,the risk of bridge construction is faced with more and more,resulting in various stages of the bridge safety accidents occur frequently,causing serious economic losses and casualties,resulting in a very bad social influence,has aroused extensive attention.Therefore,,as far as possible from the source in the construction of bridge safety risk assessment,especially in the preliminary design stage of the bridge construction and operation of the bridge in the process of safety risk assessment,it is extremely important.Especially in 2010,the Ministry of transport issued a road issued [2010] 175 documents,It is proposed to make the risk assessment in the preliminary design stage.The paper based on the large bridge risk assessment of basic theory,The main contents and methods of risk assessment in the preliminary design stage of highway bridge are described.In the specific case design of Fujian province Shen Guan Ling line to Zherong highway bridge Tongshan stream based on the detailed argumentation and analysis through the Tong Bridge mountain in two different design of the risk assessment of the preliminary design stage,to determine the optimal scheme is effective,to minimize the expected risk led to the loss,improve the engineering safety.This paper focuses on how to control the process safety of construction project based on the risk assessment of highway bridges,the theoretical research achievements into actual production safety.Based on the safety risk assessment of bridge engineering,the risk assessment is put forward to improve the planning and design,to optimize the design of the project,so as to reduce the risk of the construction and operation stage of the bridge project. |
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