Analysis on Seismic Performance of High-strength Prestressed Pipe Pile with Mixed Reinforcement
This paper takes high-strength prestressed pipe pile with mixed reinforcement as the research object,and selects the reinforcement ratio and axial compression ratio of ordinary steel bar as the research parameters.Based on the OpenSees software platform,the bearing capacity and hysteresis performance of this kind of pipe pile under low cycle loading are analyzed.The results show that the bearing capacity and hysteresis performance of high-strength prestressed pipe piles with ordinary steel bars are greatly improved,and appropriate increase of axial compression ratio is beneficial to improve the bearing capacity of pipe piles.However,when the axial compression ratio is too large,the residual displacement of pipe piles increases,which is not conducive to the seismic performance of pipe piles.
high-strength prestressed pipe pilemixed reinforcementhysteresis performancebearing capacityfinite element analysis
NETL
NSTL
万方数据
