Design Against Blast: Load Definition & Structural Response

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WIT Press, 2013 - Technology & Engineering - 209 pages
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Terrorist attacks and other destructive incidents caused by explosives have, in recent years, prompted considerable research and development into the protection of structures against blast loads. For this objective to be achieved, experiments have been performed and theoretical studies carried out to improve our assessments of the intensity as well as the space-time distribution of the resulting blast pressure on the one hand and the consequences of an explosion to the exposed environment on the other.This book aims to enhance awareness on and understanding of these topical issues through a collection of relevant, Transactions of the Wessex Institute of Technology articles written by experts in the field. The book starts with an overview of key physics-based algorithms for blast and fragment environment characterisation, structural response analyses and structural assessments with reference to a terrorist attack in an urban environment and the management of its inherent uncertainties.A subsequent group of articles is concerned with the accurate definition of blast pressure, which is an essential prerequisite to the reliable assessment of the consequences of an explosion. Other papers are concerned with alternative methods for the determination of blast pressure, based on experimental measurements or neural networks. A final group of articles reports investigations on predicting the response of specific structural entities and their contents.The book concludes with studies on the effectiveness of steel-reinforced polymer in improving the performance of reinforced concrete columns and the failure mechanisms of seamless steel pipes used in nuclear industry.
 

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Contents

threats loads and structural response
1
A study of the JWL equation of state parameters of dynamite for use in airblast models
11
A comparison of hydrodynamic and analytic predicted blast pressure profiles
23
Numerical determination of reflected blast pressure distribution on round columns
31
Theory and calibration of JWL and JWLB thermodynamic equations of state
41
Prediction of airblast loads in complex environments using artificial neural networks
53
Laboratory scale tests for internal blast loading
63
Laboratory simulation of blast loading on building and bridge structures
75
Simplified evaluation of a building impacted by a terrorist explosion
121
Simplified blast simulation procedure for hazard mitigation planning
133
design and detailing guidelines
143
Approximation of blast loading and single degreeoffreedom modelling parameters for long span girders
153
Simulationbased design of vehicles exposed to blast threats for improved occupant survivability
163
approach methodology and testing
177
Blast testing of CFRP and SRP strengthened RC columns
189
Analysis of the explosive loading of openended steel pipes
199

Nonideal explosive performance in a building structure
87
Aerodynamic damping and fluidstructure interaction of blast loaded flexible structures
97
Effect of siltysand compressibility on transferred velocity from impulsive blast loading
109

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