Abstract

The current US design codes (American Concrete Institute 318.2-19 and 349) provide limited guidance for the design of reinforced concrete walls in industrial facilities. Unlike building structures, where the walls are slender shear walls, or elevator core structures, in industrial facilities, walls are part of a labyrinthine structural layout consisting of several interconnected walls with low aspect ratios. These walls can be discretized into wall panels, and each panel needs to be designed for eight simultaneous demand types: three membrane forces, three moments, and two out-of-plane shears. This paper presents the Eurocode ‘sandwich’ model approach, which directly accounts for the interaction of the eight demand types acting simultaneously and applies the approach for the design of reinforced concrete wall panels. The paper: (i) explains the background theory leading to the development of the ‘sandwich’ model approach, (ii) presents a design flowchart to facilitate its application, (iii) validates the approach using experimental data and benchmarked inelastic, non-linear analytical models, and (iv) illustrates the use of the approach in real design applications. The results indicate that the Eurocode ‘sandwich’ model approach can be used to design and optimize the steel reinforcement required for reinforced concrete wall panels in industrial facilities.

摘要

当前的美国设计规范（美国混凝土协会 318.2-19 和 349）为工业设施中钢筋混凝土墙的设计提供了有限的指导。与在工业设施中墙体是细长的剪力墙或电梯核心结构的建筑结构不同，墙体是迷宫结构布局的一部分，由多个低纵横比的相互连接的墙体组成。这些墙可以离散成墙板，每个墙板需要设计为同时满足八种需求类型：三种膜力、三种力矩和两种平面外剪力。本文介绍了欧洲规范“三明治”模型方法，该方法直接说明了同时作用的八种需求类型的相互作用，并将该方法应用于钢筋混凝土墙板的设计。论文：(i) 解释导致“三明治”模型方法发展的背景理论，(ii) 提供设计流程图以促进其应用，(iii) 使用实验数据和基准的非弹性非线性分析模型验证该方法， (iv) 说明该方法在实际设计应用中的使用。结果表明，欧洲规范“三明治”模型方法可用于设计和优化工业设施中钢筋混凝土墙板所需的钢筋。(iv) 说明该方法在实际设计应用中的使用。结果表明，欧洲规范“三明治”模型方法可用于设计和优化工业设施中钢筋混凝土墙板所需的钢筋。(iv) 说明该方法在实际设计应用中的使用。结果表明，欧洲规范“三明治”模型方法可用于设计和优化工业设施中钢筋混凝土墙板所需的钢筋。