Technical
Calculation of αcr for unbraced frames
In this article, Dr. Yigit Ozcelik of the Steel Construction Institute (SCI) presents a simple yet efficient hand method to estimate the global stability …
AD 544: Washers for preloaded bolting assemblies
The SCI Advisory Desk sometimes receives questions about washers for preloaded bolting assemblies. When preloaded bolts are tightened and unhardened washers …
New and revised codes and standards from BSI updates May 2025
BRITISH STANDARDS PUBLISHED BS 4483:2025Steel fabric for the reinforcement of concrete. Specification. BS EN 10025-3:2019Hot rolled products of structural …
AD 543: Deflection of composite slabs
Occasionally, SCI’s advisory desk is asked about the simplified rules for controlling the deflection of steel-concrete composite slabs by limiting their …
Fire protection guidance from ASFP
The Association for Specialist Fire Protection (ASFP) has recently published the 6th Edition of the ‘Yellow Book’, Volume 1. David Brown of the Steel …
New and revised codes and standards: from BSI Updates April 2025
BRITISH STANDARDS PUBLISHED NA TO BS EN 1997-2:2024Eurocode 7. Geotechnical design. Ground properties.supersedes NA to BS EN 1997-2:2007 BRITISH STANDARDS …
What’s changing in the updated FprEN 1993 Eurocode 3 – Design of Steel Structures?
A European Design Standard, with country specific annexes and design guides Eurocode 3 provides both general and structure specific recommendations for the …
Design at elevated temperatures – unrestrained beams
Previous articles on the design of members at elevated temperatures covered restrained beams and columns. This third article in the series by David Brown of …
AD 541: Imposed roof loads in combination with PV
Photovoltaic arrays (PV) are becoming common on roofs. They’re increasingly being added to new structures and retrofitted to existing ones. The UK National …
New and revised codes and standards: from BSI Updates March 2025
BS EN PUBLICATIONS BS EN ISO 19650-6:2025Organization and digitization of information about buildings and civil engineering works, including building …
