Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

This paper presents an analytical solution to determine the kinematic and inertial response of a vertical pile embedded in a soil layer and subjected to vertical seismic excitation due to earthquake loading. The pile is assumed to have a circular cross section and perfectly connected to the soil. Also the soil stratum is assumed to be homogenous. The approach of Novak and his associates is used to derive the governing differential equation of the pile subjected to vertical harmonic vibrations. The kinematic response of the pile is first obtained considering stress free condition at the pile head and the ground surface. The inertial response of the pile is also determined when a concentrated mass exists at the pile head. It will be shown that existence of the concentrated mass at the pile head has no significant effect on the pile response. In fact, the general finding indicates that the inertial response of the pile is negligible compared with the kinematic pile response.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 24th, 12:00 AM May 29th, 12:00 AM

Influence of Concentrated Mass on Pile Response Under Vertical Earthquake Excitation

San Diego, California

This paper presents an analytical solution to determine the kinematic and inertial response of a vertical pile embedded in a soil layer and subjected to vertical seismic excitation due to earthquake loading. The pile is assumed to have a circular cross section and perfectly connected to the soil. Also the soil stratum is assumed to be homogenous. The approach of Novak and his associates is used to derive the governing differential equation of the pile subjected to vertical harmonic vibrations. The kinematic response of the pile is first obtained considering stress free condition at the pile head and the ground surface. The inertial response of the pile is also determined when a concentrated mass exists at the pile head. It will be shown that existence of the concentrated mass at the pile head has no significant effect on the pile response. In fact, the general finding indicates that the inertial response of the pile is negligible compared with the kinematic pile response.