Dynamic properties of pipe pile under harmonic SH waves
Liu Linchao , Xiao Qidan , Yan Qifang , Liu Teng
DOI:10.11835/j.issn.1674-4764.2016.06.006
Received March 09, 2016,Revised , Accepted , Available online July 04, 2017
Volume ,2016,Pages 38-45
- Abstract
The displacements of soil around pile and pile core soil under harmonic SH waves are obtained based on one-dimensional wave motion model. Under the three-dimensional axial symmetry case, the vibrations of soil around pile and pile core soil caused by horizontal harmonic concentrated load and SH waves are solved by potential functions and variable separation method, and the radial and ring displacements of soil around pile and pile core soil are also obtained. The vibration of pipe pile under harmonic concentrated load and SH waves is investigated by considering pipe pile-soil dynamic interaction and continuous conditions. And the dynamic magnification factor at pipe pile has got. The results of numeral example indicate that pipe pile has resonance phenomenon under harmonic SH waves, the pipe pilecould lead to instability if the pipe pile wall too thin, and seismic performance of pipe pile is better than solid core pile under the same outside diameter.