For the safety and economy in the aseismic design of structures

not only the collapse of structures must be avoided

but also other failure modes should be controlled.In this situation

the performance-based design method

which is regarded as the main design method in the future in aseismic engineering

is studied by many researchers.A method of how to choose the high dam construction scheme is proposed based on the function of electricity-generating of dams.Economy losses caused by different intensities of earthquakes are analyzed.Through water level

the relationship between dynamic mechanics and economy loss is established.An example is presented to illustrate the feasibility of the proposed method.