Countermeasures Research On Antiseismic And Disaster Reduntion To Bridge Structure

The earthquake has been threatening the safety of human life and property for a long time. Earthquakes take place frequently and cause disastrous damage.The study of bridge seismic and disaster reduction has important significance.In this paper,the main research work include:(1)The factor,types and distribution of earthquake are introduced; The present situation of domestic and foreign geological observation are stated; The theory and present situation of the earthquake early warning system are stated. Points out the shortage of china in these aspects and puts forward the corresponding countermeasures by comparative analysis.(2)Classify various kinds seismic damage of bridge by forms, induces and analysises the form,cause,experience and countermeasure of seismic damage of bridge.(3)Conduct a discussion about theory, conditions, shortage and future development trend of seismic analysis method and aseismic design theory on bridge.(4)Summarize the theory and application principle of the technology of seismic isolation and reduction; summarize working principle and range of application of seismic isolation device. Conduct a discussion about application condition and shortage of the technology of seismic isolation and reduction, and proposed the corresponding countermeasures.(5)Thinking about related issues of aseismic and reduction disaster on bridge, then puts forward corresponding suggestions.