Abstract:Under the action of earthquake,the ductility of the bridge can eliminate some of the seismic forces,whilw avoiding the overall damage to the bridge,but the ductility of prestressed structure is relatively poor and is often neglected under current condition,which is not conducive to the analysis of bridge seismic capacity,therefore,in-depth study of force and deformation performance of prestressed concrete members and structures is of important engineering significance.By OpenSees hysteresis curve analysis of prestressed concrete hollow rectangular cross section,we can effectively simulate section's reflection of stress and displacement in tear down condition and effectively analyze the ductility performance.