The implications of low-ductility reinforcement and strain localisation on the strength and ductility of reinforced concrete two-way slabs

在钢筋混凝土结构的设计中，延性是一项重要的要求，它提供了破坏预警、超载时内部作用的重新分配以及结构分析和设计中许多假设的合理性。最近在澳大利亚引入了低延性、变形焊接钢丝织物增强（L级），导致混凝土板具有相对脆性的破坏模式，其使用一直是许多争论的主题。本研究将探讨双向板包含L类网格的延展性和建立的设计程序的适用性。它将带来更安全、性能更好的钢筋混凝土楼板系统，如有必要，还将带来L级钢的新延展性规范。

In the design of reinforced concrete structures, ductility is an important requirement, providing warning of failure, redistribution of internal actions at overloads and justification of many of the assumptions made in structural analysis and design. The recent introduction in Australia of low-ductility, deformed welded wire fabric reinforcement (Class L) has resulted in concrete slabs with relatively brittle failure modes and its use has been the subject of much debate. This research will investigate the ductility of two-way slabs containing Class L mesh and the applicability of established design procedures. It will lead to safer and better performing r.c. floor systems and, if necessary, new ductility specifications for Class L steel.