Design of an expoosion protective concrete shield

混凝土防爆防护盾设计

• 批准号: 528413-2018
• 负责人: Marzouk, Hesham
• 金额: $ 1.82万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=658952
• 关键词: Design; expoosion; protective; concrete; shield

The current proposal focuses on investigating numerically the use of UHPC in blast-resistance structures in**collaboration with LEA consulting Ltd. The outcome of this research will be an optimized, slim design of**UHPC protective disposable panels to be used to cover zones with high blast hazard. The project will also**provide design charts for UHPC panels based on the expected TNT charge mass and corresponding standoff**distances.**The main focus of this research is to design an optimized, slim design of UHPC protective panel to be used to**cover zones with high blast hazard through a collaboration between LEA consulting Ltd and the Ryerson**academic research group led by Dr. Marzouk. In general, the existing concrete shields are thick, heavy in**weight, difficult to install, and expensive. The proposed design aims to overcome these drawbacks. Thus far,**there has been very little research published describing suitable analysis and design methods for UHPC panels**under blast loading conditions. For LEA consulting Ltd. in particular, the use of such new material in blast**resistant applications requires an advanced nonlinear numerical investigation focusing on the blast-resistant**and design guidelines for UHPC. This topic is in need to further investigation by skilled researchers in the field**of dynamic analysis, UHPC modeling, nonlinear finite element analysis, and optimization techniques.**UHPC exhibits exceptional mechanical, serviceability, and durability characteristics in comparison to its**traditional concrete counterparts. Such properties include ultra-compressive strength exceeding 150 MPa,**enhanced tensile strength, ductility, toughness, dimensional stability, durability, corrosion resistance and**abrasion resistance.

目前的提案重点是与莱亚consulting Ltd. ** 合作，对UHPC在抗爆结构中的使用进行数值研究。该研究的结果将是 **UHPC一次性防护板的优化、薄型设计，用于覆盖高爆炸危险区域。该项目还将 ** 根据预期的TNT装药量和相应的间隔距离 * 提供UHPC板的设计图表。本研究的主要重点是通过莱亚咨询有限公司和由Marzouk博士领导的瑞尔森 ** 学术研究小组的合作，设计一种优化的超薄UHPC防护板，用于 ** 覆盖高爆炸危险区域。一般来说，现有的混凝土盾构厚，重量大，安装困难，价格昂贵。所提出的设计旨在克服这些缺点。到目前为止，** 很少有研究发表描述爆炸荷载条件下UHPC板的合适分析和设计方法。特别是对于莱亚咨询有限公司来说，在抗爆应用中使用这种新材料需要进行先进的非线性数值研究，重点关注UHPC的抗爆性 ** 和设计指南。本课题需要在动力分析、UHPC建模、非线性有限元分析和优化技术领域 ** 有经验的研究人员进一步研究。**与传统混凝土相比，UHPC具有优异的机械性能、适用性和耐久性。这些性能包括超过150 MPa的超压强度、** 增强的拉伸强度、延展性、韧性、尺寸稳定性、耐久性、耐腐蚀性和 ** 耐磨性。