Technology
Assessment & Research (TA&R) Program
| Project Number |
224 |
| Date of Summary |
February 25, 1998 |
| Subject |
Dynamic Non-linear Loading
Effects on Offshore Platforms |
| Performing Activity |
University of California at Berkeley |
| Principal Investigator |
Mr. Robert G. Bea |
| Contracting Agency |
California State Lands Commission |
| Estimated Completion |
Complete |
| Description |
The objective was to conduct
parametric studies of the dynamic response of reduced degrees of freedom
nonlinear systems and determine how the results from simplified nonlinear
capacity analysis relate to the results from complex time-domain analysis of
the performance of platforms in extreme condition storms. Observed platform
performance during recent hurricanes (e.g. Andrew, Camille, Betsy, Hilda)
were used to verify the analysis. Engineering guidelines were developed to
define dynamic nonlinear loading-capacity effects on the overall performance
characteristics of platforms. |
| Progress |
Complete |
Reports |
AA
(118
pages)
 |
Bea, Robert G., Graduate Student
Researchers, Loch, K. J., Young, P. L., Screening Methodologies for Use in Platform
Assessments and Requalifications, Department of Civil Engineering, University of
California at Berkeley, October 2, 1994. |
|
AB
(306
pages)
|
Mortazavi, M., Bea, Robert G.,
Screening Methodologies for Use in Platform Assessments and Requalifications, Final
Project Report submitted by Marine Technology and Management Group Project, Department of
Civil Engineering, University of California at Berkeley, January, 1996. |
|
AC
(96
pages)
|
Bea, Robert G., Stear, James D.,
Using Static Pushover Analysis to Determine the Ultimate Limit States of Gulf of Mexico
Steel Template-Type Platforms Subjected to Hurricane Wind and Wave Loads, Marine
Technology and Management Group Project, Department of Civil Engineering, University of
California at Berkeley, March, 1996. |
|
AD
(39
pages)
|
Bea, Robert G., Stear, James D.,
Comparison of Two Screening Methodologies for Steel Template-Type Platforms: Ultimate
Limit State Management Group Project, Department of Naval Architecture and Offshore
Engineering, University of California, Berkeley, June, 1996. Limit Equilibrium Analysis
(ULSEA) and Simplified Ultimate Strength Analysis (SUS), Report submitted by Marine
Technology and |
|
AE
(86
pages)
|
Bea, Robert G., Stear, James D.,
Mortazavi, M., ULSEA- Manual of Operation, Manual submitted by Marine Technology and
Management Group Project, Department of Naval Architecture and Offshore Engineering,
University of California, Berkeley, June, 1996. |
|
AF
(194
pages)
|
Loch, Kenneth J., Bea, Robert G.,
Determination of the Ultimate Limit States of Fixed Steel-Framed Offshore Platforms Using
Static Pushover Analyses, Report submitted by Marine Technology and Management Group,
Department of Civil Engineering, University of California, Berkeley, May, 1995. |
|
AG
(96
pages)
|
Bea, Robert G., Stear, James D.,
Aviguetero, Teresa, Staneff, Stephen T., Screening Methodologies for Use in Platform
Assessments and Requalifications, Department of Civil and Environmental Engineering,
University of California at Berkeley, November 1996 |
|
AH
(47
pages)
|
Bea, Robert G., Wiseman, James,
Non-Linear Dynamics of Caisson Well-Protectors During Hurricane Andrew, Marine Technology
Management Group, Department of Civil and Environmental Engineering, University of
California at Berkeley, August 1997. |
|
AI
(72
pages)
|
Bea, Robert G., Stear, James D.,
Aviguetero, Teresa, Staneff, Stephen T., Screening Methodologies for Use in Platform
Assessments and Requalifications, Phase III, project meeting notes, Department of Civil
and Environmental Engineering, University of California at Berkeley, June 18-19, 1997. |
|
AJ
(16
pages)
|
Bea, Robert G., et. al.,
Verification of a Simplified Methods to Evaluate the Capacities of Template-Type
Platforms, presented at the 27th Annual Offshore Technology Conference, Houston, Texas,
May 1-4, 1995. |
|
AK
(18
pages)
|
Bea, Robert G. and Mortazavi, M.,
A Simplified Structural Reliability Analysis Procedure for Use in Assessments and
Requalifications of Template-Type Offshore Platforms, presented at the 6th International
Offshore and Polar Engineering Conference, Los Angeles, California, May 26-31, 1996. |
|
AL
(8
pages)
|
Bea, Robert G., Loch, K.J., and
Young, P.L., Capacities of Template-Type Platforms in the Gulf of Mexico During Hurricane
Andrew, Journal of Offshore Mechanics and Arctic Engineering, Vol. 119, February 1997. |
|
AM
(14
pages)
|
Stear, James D. and Bea, Robert
G., Ultimate Limit Stae Capacity Analyses of Two Gulf of Mexico Platforms, presented at
the 28th Annual Offshore Technology Conference, Houston, Texas, May 5-8, 1997. |
|
AN
(16
pages)
|
Bea, Robert G. and Mortazavi, M.,
Experimental Validation of the Ultimate Limit State Equilibrium Analysis (ULSLEA)with
Results from Frame Tests, presented at the 7th International Offshore and Polar
Engineering Conference, Honolulu, Hawaii, May 25-30, 1997. |
|
AO
(110
pages)
|
Stear, James D. and Bea, Robert
G., ULSLEA Enhancements: Fatigue Analysis/Earthquake Analysis/Additional Configurations,
Screening Methodologies Project Phase III, Report to Joint Industry Project Sponsers,
Department of Civil Engineering, University of California, Berkeley, June 1997. |
|
AP
(94
pages)
|
Stear, James D. and Bea, Robert
G.,Earthquake Analysis of Offshore Platform, Screening Methodologies Project Phase III,
Report to Joint Industry Project Sponsors, Department of Civil Engineering, University of
California at Berkeley, June 1997. |
|
AQ
(47
pages)
|
Wiseman, James and Bea, Robert,
Non-Linear Dynamics of Casson Well-Protectors During Hurricane Andrew, Report to the U.S.
Minerals Management Service, Department of Civil Engineering, University of California,
Berkeley, August 1997. |
|
AR
(58
pages)
|
Bea, Robert G., et. al.,
Screening Methodologies for Use in Offshore Platform Assessment and Requalifaction: Phase
IV, project meeting notes Department of Civil Engineering, University of California at
Berkeley, January 29-30, 1998. |
|
AS
(148
pages)
|
Xu, Tao, and Bea, Robert,
Reassessment of the Tubular Joint Capacity: Uncertainty and Reliability, Screening
Methodologies Project Phase IV, Report to Joint Industry Project Sponsors, Marine
Technology and Management Group, Department of Civil Engineering, University of California
at Berkeley, January 1998. |
|
AT
(70
pages)
|
Jin, Zhaohuui, and Bea,
Robert,Loading and Capacity Characteristics of Pile Foundations: Correlation of Calcuation
Results with ULSLEA, Screening Methodologies Project Phase IV, Report to Joint Industry
Project Sponsors, Marine Technology and Management Group, Department of Civil Engineering,
University of California at Berkeley, January 1998. |
|
AU
(176
pages)
|
Jin, Zahaohui; Bea, R. G.,
Hurricane Wave Characteristics and Performance Characteristics of Platform Pile
Foundations in the Bay of Campeche, Mexico Screening Methodologies Project Phase IV, Joint
Industry Project Sponsors, Marine Technology and Management Group, Depart. of Civil and
Environmental Engineering, University of California at Berkeley, May, 1999. |
|
AT
(99 pages) |
Optimization of Preventative
Maintenance for Mechanical Damage of Offshore Pipelines PIRAMID Technical
Reference Manual No. 9.0 C-FER Project 97044, November, 1998. |
|
|
|
