Bridge aseismic design method based on response surface model

Abstract

The invention provides a bridge aseismic design method based on a response surface model, it can fully consider different bridge types and corresponding design parameters as well as ground motion intensity, by establishing the response surface model of bridge seismic failure probability, the adjustment range of each parameter of the bridge is obtained,when performance requirements are not met, facilitating the determination of the direction and scope of the adjustment, the tuning process is more intuitive through the model, thus, the optimum value of each design parameter of the bridge can beobtained quickly and conveniently, the design capacity of the bridge can be optimized, the safety coefficient of the bridge can be improved, the service life can be prolonged, the practicability is strong, the calculation process is simple, the design time cost is greatly reduced, the design efficiency can be improved under the condition of meeting the seismic demand of the bridge, and the bridgehas excellent application prospect.

Description

technical field [0001] The invention relates to the technical field of bridge anti-seismic design, in particular to a bridge anti-seismic design method based on a response surface model. Background technique [0002] When designing a bridge, there are many parameters. As the bridge structure becomes more and more complex and the surrounding environment characteristics change, the process of selecting design parameters and adjusting the value of design parameters becomes more and more complicated and cumbersome. Therefore, in the design process of large bridges, the required parameters and the approximate value range of each parameter are usually determined based on experience, and the values ​​of each parameter that meet the requirements are obtained through finite element calculations. However, there is inevitably room for optimization in each parameter value. If optimization is performed, the calculation process may be too complicated, which directly leads to difficulty in...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that in the existing bridge design process, the design process is complicated, and it is difficult to determine the optimal value of each parameter. It is difficult to achieve economical efficiency under the premise, the calculation is cumbersome, the waste of time and cost is large, and the construction cost is high. A bridge seismic design method based on the response surface model is provided.

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