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Effects of reinforcement on the ultimate strength of tubular Joints of offshore jacket platform

Syed Ariff Shah bin Syed Amear, Syed Ariff Shah (2010) Effects of reinforcement on the ultimate strength of tubular Joints of offshore jacket platform. UNSPECIFIED. (Submitted)

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Abstract

The current status of the Oil and Gas industry in terms of technological advances in oil recovery techniques, and market forces, has lead to a requirement for offshore platforms to remain operational for longer than original estimations. The economics of such an extension to the service life will be more favorable if enhancement of the fatigue life prior to deterioration of the integrity of the structural components that may be expected as the structure approaches the end of its original design life. A grout filled tubular member with an unreinforced cementitious grout material, forming a composite load carrying section. The increase in load carrying capacity of the member is predominately in compression and bending. Tensile strength is not increase as the grout is only confined by the tubular and not attached directly to the end supports. In addition as the grout is unreinforced its tensile strength is small relative to its compressive strength. Written in this report are the details of research to determine the influence of grout injection in life span enhancement of tubular joints of jacket platform. In this research, author specifies the type of joint which is the T -joint. Results of the lab testing shows that grout filled tubular Tjoints has the highest ultimate load compared to unreinforced or hollow tubular T -joints. However due to the presence of the grout, reinforcement has caused the specimen to be brittle. Failures of such reinforced tubular T -joints are sudden and abrupt without any yielding behaviour.

Item Type: Final Year Project
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Mr Editor1
Date Deposited: 03 Aug 2011 08:09
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/17

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