API REPORT 7 Cyclic Deformations of Offshore Structures on Clay

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API REPORT 7 Document Information:

Title
Cyclic Deformations of Offshore Structures on Clay

American Petroleum Institute

Publication Date:
Mar 1, 1978

Scope:

2. Scope

The objective of this research was to develop a procedure to predict both horizontal and vertical deformations of foundations subjected to cyclic loads. The procedure makes use of a theory and computer programs developed to calculate earthquake permanent deformations in earth dams. A new computer program was developed to take in consideration some differences between earthquake and cyclic laoding. This new program was then applied to two different sets of tests done to simulate cyclic loading of offshore structures on clay soils. The tests were choosen such that they would allow to check the program for both types of doundation failure: excessive settlement or horizontal sliding. General conclusions concerning the use of the new program are presented in Part VI of this thesis.

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