Non Linear Analysis of Single Storey RC front Wall under Blast Loading

In modern days many civilian structures need shielding against blast effects. Past incidences of terrorist activities have increased the awareness towards the structural design to mitigate the effect of explosion and prevention of collapse of the building. The objective primary of blast resistant design is to prevent the collapse of the structural system and to maintain structural integrity through ductile and redundant behaviour. The primary aim of present work is to analyze the RC wall having SDOF with both end fixed under blast loading using ANSYS software.

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Safety Format and Acceptance Criteria for Analysis of Marine Structures Using Non-Linear Methods

Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift Forces on Floating Structures; Johan Wichers Symposium on Mooring of Floating Structures in Waves ◽

10.1115/omae2011-49874 ◽

2011 ◽

Cited By ~ 1

Author(s):

Gunnar Solland ◽

Atle Johansen ◽

Gudfinnur Sigurdsson

Keyword(s):

Cross Sections ◽

Structural Integrity ◽

Linear Analysis ◽

Acceptance Criteria ◽

Existing Structures ◽

Analysis Methods ◽

Structural Details ◽

Non Linear ◽

Definition Of ◽

Novel Design

This paper deals with how structural integrity can be documented by use of non-linear analysis methods. The focus is on structures that are exposed to extreme environmental loads. In order to prove the structural integrity for aging offshore installation, non-linear analysis methods are finding increased applications. The codes ISO 19902, API RP 2A and Norsok N-006 give recommendations for use of non-linear methods for capacity checks of existing structures. This paper discusses the different safety formats given in these codes. Also presented is how practical acceptance criteria that have to be applied in conjunction with such analyses can be formulated. The topics that are dealt with are issues that the analyst performing such analyses needs to address like: definition of failure, representation of joints, issues on cyclic loading, instability of cross sections and member buckling. In cases of novel design solutions or special structural details, non-linear analysis methods may also find application when planning new structures.

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APPLICATION OF NON-LINEAR ANALYSIS TO STRUCTURAL DESIGN OF A LNG INGROUND TANK

Doboku Gakkai Ronbunshu ◽

10.2208/jscej.2003.742_87 ◽

2003 ◽

pp. 87-100

Author(s):

Nobukazu WATANABE ◽

Hideaki ENDO ◽

XUEHUI An ◽

Masafumi NAKANO ◽

Hiroyuki AOKI

Keyword(s):

Structural Design ◽

Linear Analysis ◽

Non Linear

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Structural Integrity Management for a Large Pre-Stressed Concrete Floating Production Unit

Volume 2: Structures, Safety and Reliability; Petroleum Technology Symposium ◽

10.1115/omae2007-29535 ◽

2007 ◽

Author(s):

Bertrand Lanquetin ◽

Pascal Collet ◽

Jose Esteve

Keyword(s):

High Performance ◽

Structural Integrity ◽

High Performance Concrete ◽

Element Model ◽

Linear Analysis ◽

Production Unit ◽

Non Linear ◽

Integrity Management ◽

Field Production

Offshore Floating Production Units, usually deployed under long-term plan, handle the field production so they cannot be easily removed for dry-docking and repair. In order to constantly analyze and monitor the condition of the units, a tailor-made methodology has been developed and implemented since 2004 for the Integrity Management of our Floating Units currently in operation. The paper gives a description of this methodology, and then focuses on how the methodology was deployed for the large pre-stressed concrete Floating Production Unit (FPU) located offshore Congo on N’KOSSA field. This FPU is the largest existing pre-stressed concrete Floating Production Unit, built with high performance concrete, installed offshore since 1996 in 170 m water depth. She has now accumulated 10 years of production. A significant part of the methodology is based on a full Finite Element Model (FEM) with non-linear analysis capacity for the concrete structure, incorporating a description of passive and active steel. There is often an anchored perception that a concrete unit is something not requiring attention once installed. This paper shows otherwise, underlining the complexity of modeling the highly non linear characteristics of pre-stressed high performance concrete and degradation modes.

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Determination of Concrete Cube Strength from Used Samples / Určení Krychelné Pevnosti Betonu U Použitých Zkušebních Trámců

Transactions of the VŠB - Technical University of Ostrava Civil Engineering Series ◽

10.2478/v10160-012-0033-3 ◽

2012 ◽

Vol 12 (2) ◽

pp. 186-194 ◽

Cited By ~ 2

Author(s):

Oldřich Sucharda ◽

David Mikolášek ◽

Jiří Brožovský

Keyword(s):

Compressive Strength ◽

Concrete Beams ◽

Linear Analysis ◽

Bending Tests ◽

Cube Strength ◽

Non Linear ◽

Compressive Strength Of Concrete ◽

Concrete Cube

Abstract This paper deals with the determination of compressive strength of concrete. Cubes, cylinders and re-used test beams were tested. The concrete beams were first subjected to three-point or fourpoint bending tests and then used for determination of the compressive strength of concrete. Some concrete beams were reinforced, while others had no reinforcement. Accuracy of the experiments and calculations was verified in a non-linear analysis.

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