点固定波纹金属型板在爆炸载荷作用下的动态承载力

IF 2.1 Q2 ENGINEERING, CIVIL
K. Fischer, Jan Dirk van der Woerd, W. Harwick, A. Stolz
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引用次数: 1

摘要

必须针对基础设施元件和建筑物,特别是工业现场的安全和安保问题,评估爆炸荷载场景和相应的危险。点固定波纹金属板通常用作外墙构件,如果将其拔出,可能会对人类造成危害。本文从其在跨度中间的一般弯曲行为和固定点的拔出行为来研究此类结构构件的动态承载力。元件固定在两侧,载荷传递是单轴的。静态和动态试验的实验系列构成了确定主要失效模式和量化可吸收的最大应力值的基础,直到所研究的结构构件失效。实验结果用于创建和优化工程模型,以便快速有效地评估结构响应。其目的是推导一个经过验证的模型,该模型能够预测金属板的爆炸载荷行为,包括任意尺寸、材料特性和螺纹连接。这项研究的结果可以整合到系统的风险和恢复力管理过程中,以评估预期的损害影响和稳健性评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic bearing capacity of point fixed corrugated metal profile sheets subjected to blast loading
Blast loading scenarios and the corresponding hazards have to be evaluated for infrastructure elements and buildings especially at industrial sites for safety and security issues. Point fixed corrugated metal sheets are often applied as façade elements and can become a hazard for humans if they are pulled off. This paper investigates the dynamic bearing capacity of such structural members in terms of their general bending behavior in the middle of the span and pull-out behaviors at the fixing points. The elements are fixed at two sides and the load transfer is uniaxial. An experimental series with static and dynamic tests forms the basis to identify the predominant failure modes and to quantify the maximum stress values that can be absorbed until the investigated structural members fail. The experimental findings are applied to create and to optimize an engineering model for the fast and effective assessment of the structural response. The aim is the derivation of a validated model which is capable to predict the blast loading behavior of metal sheets including arbitrary dimensions, material properties, and screw connections. Results of this study can be integrated into a systematic risk and resilience management process to assess expected damage effects and the evaluation of robustness.
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来源期刊
CiteScore
4.30
自引率
25.00%
发文量
48
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