| Compare continuous rigid frame bridge with corrugated steel webs with continuous rigid frame bridge with concrete webs,In the aspect of structure,mechanical performance and economic benefits have a great advantage.The study about the new type at home and abroad mainly focused on the static aspect,the research of its dynamic performance are rare.With the gradual application of the new structure,carry on the seismic response and shock absorption measures of research has very important significance.In this paper,according to a continuous rigid frame bridge with corrugated steel webs,carried out response spectrum analyze and time-histories analyze,and has carried out the research of shock absorption measures.The main research works are as follows:(1)Summarize the characteristic and the status quo of seismic response analysis of corrugated steel web composite box girder bridge,and introduce the basic theory of common static method,response spectrum method and time history analysis method.(2)According to the actual project,establish five types of pier height models,adopt the method of response spectrum,research the height of the pier about continuous rigid frame bridge with corrugated steel webs dynamic performance influenced.(3)Using the height model of bridge pier,adopt time history analysis method,research non-rocky soil ratio m about continuous rigid frame bridge with corrugated steel webs dynamic performance influenced.(4)According to the actual geology situation,establish M model and direct embedded model,adopt time history analysis method,research direct embedded model for continuous rigid frame bridge with corrugated steel webs dynamic performance influenced.(5)According to the principle of bridge damping,adopt M model,research the damping coefficient of viscous damper,velocity index and damper stiffness for bridge shock absorption influence,in the end get the reasonable damper parameter of viscous damper. |
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