Seismic design guideline

[mahisub]

I have been asked to prepare a seismic design guideline for subsea structures (piles, pipelines, gravity base structures)
Are there any available references that I can start with? I have checked API and DNV and found nothing.

 

[eureka]

Two items:

International Handbook of Earthquake Engineering
by Mario Paz
This reference give the Seismic Codes for 34 countries.

The Department of the Interior, United States Geological Survey, publishes a World Seismicity Map showing all earthquakes greater than 4.5 from 1963 to date of publication and all earthquakes greater than 8.0 from 1897 to date of publication.

 

[mahisub]

Thanks Eureka,
Does it cover the GEOTECHNICAL siesmic design guidelines as well?

 

[eureka]

The handbook covers base shear.

There is another reference:

Guidelines for the Design of Buried Steel Pipe
Published by:
American Lifelines Alliance (ALA)and
American Society of Civil Engineers (ASCE) and
Federal Emergency Management Agency (FEMA)

Section 11 of the Guideline covers Earthquake criteria.

If you will Google the title, there is a website with the document in a PDF format. It can be downloaded.

 

[PAN]

mahisub,
You may consider ISO 19901-2 "Petroleum and natural gas industries — Specific requirements for offshore structures — Part 2: Seismic design procedures and criteria".

 

[narenr]

Refer Guideline for design of buried pipelines issued by American Lifelines Alliance, you can download the document at

http://www.americanlifelinesalliance.org.

This documents explains the design principles for earthquake design of pipelines with an example.

Rgds Naren

Narendranath R
Pipeline engineering is made easy with state of the art computer software, visit

http://www.narendranath.itgo.com.

 

[einestain64]

Seismic Desgin and Retrofit of Piping systems from the same site (as addressed by <b>narenr</b>) could be also referred.
In general, seismic design of offshore pipelines, lie in two categories. First, threats from liqufaction and fault movements which are covered in this and prevuios guidelines. Secondly, effects for eqrthquake acceleration in the offshore pipelines and associated interia force which could be analysed using FEM software and stress criteria could be checked against DNV OS F101.
Moreover, effect of tsunami and seich waves in shore approaches should be checked and verified.