硬质弹丸冲击下的钢筋混凝土结构:抗穿透性和抗穿孔性

IF 3 3区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY Structural Concrete Pub Date : 2024-09-02 DOI:10.1002/suco.202300143
Pascal Distler, Lars Heibges, Hamid Sadegh‐Azar
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引用次数: 0

摘要

钢筋混凝土(RC)结构主要用于承受静荷载和动荷载。然而,由于钢筋混凝土结构在承受极端动态荷载时具有高度非线性行为,因此这些结构在动态冲击荷载作用下具有非常复杂的破坏行为。事实上,目前现有的损坏模拟和预测方法一般都是基于经验数据、简化机械方法或主要使用有限元方法的复杂数值模拟。在这方面,可以考虑采用经验和半经验模型,以简化的方式计算承载能力,只需输入少量参数。因此,本文利用当前的实验测试数据,旨在分析和评估标准和指南中确立的现有经验和半经验方法。因此,本文找到了影响因子的功能关系。根据获得的结果,还开发了不同的方法来描述 RC 结构的抗弹丸穿透能力以及弹丸与 RC 结构之间的力相互作用。
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Reinforced concrete structures under hard projectile impact: penetration and perforation resistance
Reinforced concrete (RC) structures are mainly designed to withstand both static and dynamic loads. However, due to the highly nonlinear behavior of RC structures subjected to extreme dynamic loads, these structures have a very complex damage behavior under dynamic impact loading. In fact, current existing methods for damage‐simulation and prediction are generally based on either empirical data, simplified mechanical approaches or complex numerical simulations mainly using the finite element method. In this regard, empirical and semi‐empirical models can be considered to calculate the load‐bearing capacity in a simplified way with only a few input parameters. Hence, using current experimental test data, this paper aims to analyze and assess existing empirical and semi‐analytical approaches that are established in standards and guidelines. Accordingly, a functional relationship in terms of an impact factor is found. Based on the obtained results, different approaches are also developed to describe the resistance to projectile penetration of RC structures as well as the force interaction between projectile and RC structures.
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来源期刊
Structural Concrete
Structural Concrete CONSTRUCTION & BUILDING TECHNOLOGY-ENGINEERING, CIVIL
CiteScore
5.60
自引率
15.60%
发文量
284
审稿时长
3 months
期刊介绍: Structural Concrete, the official journal of the fib, provides conceptual and procedural guidance in the field of concrete construction, and features peer-reviewed papers, keynote research and industry news covering all aspects of the design, construction, performance in service and demolition of concrete structures. Main topics: design, construction, performance in service, conservation (assessment, maintenance, strengthening) and demolition of concrete structures research about the behaviour of concrete structures development of design methods fib Model Code sustainability of concrete structures.
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