FENG Zhong-ju, ZHANG Cong, HE Jing-bin, et al. Shaking table test of time-history response of rock-socketed single pile under strong earthquake[J]. 2021, 42(12).
DOI:
FENG Zhong-ju, ZHANG Cong, HE Jing-bin, et al. Shaking table test of time-history response of rock-socketed single pile under strong earthquake[J]. 2021, 42(12).DOI: 10.16285/j.rsm.2021.0548.
Shaking table test of time-history response of rock-socketed single pile under strong earthquake
To explore the time-history response laws of pile foundation under different types of seismic waves
the pile acceleration of rock-socketed single pile foundation
relative displacement of pile top
bending moment of pile body and damage of pile foundation under the action of artificially synthesized 5010 waves
5002 waves
Kobe waves and El-Centro waves with an intensity of 0.35g were studied through the shaking table test. The test results show that the dynamic response characteristics of rock-socketed single pile foundation are related to the spectrum characteristics of input seismic waves. The acceleration response of the pile top significantly lags behind that of the pile bottom
and the peak acceleration of the pile reaches the maximum value under the action of El-Centro waves. The relative displacement of the pile top is the largest when inputting Kobe waves
and the peak value appears earliest when inputting El-Centro waves. The maximum bending moment of the pile does not exceed the bending bearing capacity of the pile foundation
and there is no damage to the pile foundation. In the anti-seismic design of pile foundation
the type of seismic waves can be reasonably selected according to the corresponding checking content
and the corresponding engineering suggestions are proposed.