Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis

© 2017 World Scientific Publishing Company. Blast wall is considered to be an effective passive measure for blast protection since it can effectively reduce the blast loads and protect the building structures and people behind it. However, the current practice in blast wall design mainly depends on...

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Main Authors: Zong, R., Hao, Hong, Shi, Y.
Format: Journal Article
Published: World Scientific Publishing Co. Pte. Ltd. 2016
Online Access:http://hdl.handle.net/20.500.11937/38619
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author Zong, R.
Hao, Hong
Shi, Y.
author_facet Zong, R.
Hao, Hong
Shi, Y.
author_sort Zong, R.
building Curtin Institutional Repository
collection Online Access
description © 2017 World Scientific Publishing Company. Blast wall is considered to be an effective passive measure for blast protection since it can effectively reduce the blast loads and protect the building structures and people behind it. However, the current practice in blast wall design mainly depends on the structural strength and ductility to resist blast loads. These designs often lead to huge solid walls which are not only expensive, but also unsuitable for construction in urban areas, as they are not aesthetically appealing. Moreover, failure of solid blast wall may generate a significant amount of debris, which imposes great threats to people and structures behind the wall. In this paper, a new fence type blast wall, instead of the solid wall, is proposed to resist the blast loads based on the concept of wave interference. The proposed fence wall uses structural columns placed at strategic locations as wave stoppers to generate wave reflection, diffraction and interaction between the reflected and diffracted waves from different columns to result in self-cancellation of wave energy, thus leads to substantial reduction in blast wall size in design. Numerical simulations are carried out to investigate the effectiveness of the fence wall layout with different column geometries, column spacing, column dimensions, and fence layers on blast loads reduction. Based on the results, an effective design of the fence type blast wall is proposed, which can reduce the pressure and impulse of the blast loads behind the wall upto 70%.
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publishDate 2016
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spelling curtin-20.500.11937-386192017-09-13T14:15:05Z Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis Zong, R. Hao, Hong Shi, Y. © 2017 World Scientific Publishing Company. Blast wall is considered to be an effective passive measure for blast protection since it can effectively reduce the blast loads and protect the building structures and people behind it. However, the current practice in blast wall design mainly depends on the structural strength and ductility to resist blast loads. These designs often lead to huge solid walls which are not only expensive, but also unsuitable for construction in urban areas, as they are not aesthetically appealing. Moreover, failure of solid blast wall may generate a significant amount of debris, which imposes great threats to people and structures behind the wall. In this paper, a new fence type blast wall, instead of the solid wall, is proposed to resist the blast loads based on the concept of wave interference. The proposed fence wall uses structural columns placed at strategic locations as wave stoppers to generate wave reflection, diffraction and interaction between the reflected and diffracted waves from different columns to result in self-cancellation of wave energy, thus leads to substantial reduction in blast wall size in design. Numerical simulations are carried out to investigate the effectiveness of the fence wall layout with different column geometries, column spacing, column dimensions, and fence layers on blast loads reduction. Based on the results, an effective design of the fence type blast wall is proposed, which can reduce the pressure and impulse of the blast loads behind the wall upto 70%. 2016 Journal Article http://hdl.handle.net/20.500.11937/38619 10.1142/S0219455417500663 World Scientific Publishing Co. Pte. Ltd. restricted
spellingShingle Zong, R.
Hao, Hong
Shi, Y.
Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis
title Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis
title_full Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis
title_fullStr Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis
title_full_unstemmed Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis
title_short Development of a New Fence Type Blast Wall for Blast Protection: Numerical Analysis
title_sort development of a new fence type blast wall for blast protection: numerical analysis
url http://hdl.handle.net/20.500.11937/38619