Vertical shear resistance of composite slabs and anchorage
Advisory Desk Note 540
Document Status
Current
Supplement
Civil & Structural Supplement
Series
Advisory Desk Note
Abstract
This SCI Advisory Note discusses the vertical shear resistance in composite slabs, particularly in scenarios where heavy concentrated loads near supports may render vertical shear critical. It clarifies that while traditional designs assumed sufficient anchorage of steel sheeting and reinforcement, such assumptions may not always hold. The note outlines how vertical shear resistance is calculated per BS EN 1994-1-1 and EN 1992-1-1, focusing on the effective contribution of anchored tensile reinforcement. It also highlights how second-generation Eurocode 4 provisions account for additional resistance from steel sheeting, including shear buckling and web crushing, even when anchorage is limited—ultimately supporting the continued validity of current design assumptions.
History
March 2025 edition.
Subjects
- Building structure
- Materials
- Metal sections/other items
- Steel
- Steel building systems/frame
- Building systems/frame
Publisher History
With over 30 years experience, the Steel Construction Institute provide technical expertise and best practice to the steel construction sector.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.