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    Volume 45, Issue 1 (January 2017)

    Special Issue Paper

    Experimental Study on the Dynamic Response of PHC Pipe-Piles in Liquefiable Soil

    (Received 3 March 2016; accepted 2 November 2016)

    Published Online: 24 January 2017

    CODEN: JTEVAB

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    Abstract

    Shaking-table testing of seismic performance and dynamic interaction of prestressed high-strength concrete (PHC) pipe-piles in saturated soils and unsaturated soils was conducted using a series of sine waves, typical earthquake waves, as well as artificial ground motions based on in situ measurements. The presented test results, involving the time history of water pore pressure ratio and the responding displacement related to soil liquefaction, indicated that the natural frequency of soil-pile system decreased because of gradual degradation of soil and pile shift. Moreover, the peak displacement responses of piles in saturated soil were larger than the peak displacements in unsaturated soil. In addition, prestressing in pile was beneficial to the resistance of pile damage or degradation. These experimental results were able to calibrate FE models and to provide a database for seismic design of PHC pipe-piles.


    Author Information:

    Huang, F.
    College of Civil Engineering, Fuzhou Univ., Fuzhou City, Fujian Province

    Qian, H.
    College of Civil Engineering, Fuzhou Univ., Fuzhou City, Fujian Province

    Zhuang, Y.
    College of Civil Engineering, Fuzhou Univ., Fuzhou City, Fujian Province

    Fu, C.
    College of Civil Engineering, Fuzhou Univ., Fuzhou City, Fujian Province


    Stock #: JTE20160122

    ISSN:0090-3973

    DOI: 10.1520/JTE20160122

    Author
    Title Experimental Study on the Dynamic Response of PHC Pipe-Piles in Liquefiable Soil
    Symposium ,
    Committee D18