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 LEA 咨询有限公司合作，对 UHPC 在防爆结构中的使用进行数值研究。这项研究的成果将是用于覆盖区域的 UHPC 一次性防护面板的优化、纤薄设计具有高爆炸危险。该项目还将**根据预期的 TNT 电荷质量和相应的隔离**距离提供 UHPC 面板的设计图表。**这项研究的主要重点是设计一种优化的超薄设计的 UHPC 保护面板，用于**通过 LEA 咨询有限公司和 Ryerson **由 Marzouk 博士领导的学术研究小组合作，覆盖具有高爆炸危险的区域。现有的混凝土盾构普遍厚度大、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载荷条件下 UHPC 面板**的合适分析和设计方法。特别是对于 LEA 咨询有限公司来说，在防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，重点关注防爆**和 UHPC 的设计指南。该主题需要动态分析、UHPC 建模、非线性有限元分析和优化技术领域**的熟练研究人员进行进一步研究。**与它的**相比，UHPC 表现出卓越的机械、适用性和耐用性特性传统的混凝土对应物。这些特性包括超过 150 MPa 的超抗压强度、**增强的拉伸强度、延展性、韧性、尺寸稳定性、耐用性、耐腐蚀性和**耐磨性。