Demountable Steel‐CLT Composite Floors for Net‐Zero Carbon Buildings: State of the Art and Design Principles

Abstract

Steel-concrete composite floors are one of the most common forms of construction considered for a steel-framed building. Although structural efficient, the concrete holds strong environmental impacts. Nowadays, engineered timber products offer a competitive alternative solution. Replacing concrete with a timber-based flooring element brings sound sustainability benefits to the solution. This paper discusses the use of composite steel-CLT (Cross Laminated Timber) composite floors as an alternative to the traditional steel-concrete composite floors. A literature review of steel-CLT composite floor solutions was completed and summarized in this article. The available design guidance is also discussed.

Hybrid Steel Frames With Mass Timber Floors: Performance, Challenges and Sustainability Benefits

“…Complementary design guidance is required if CLT panels are used since such elements are currently not covered by EN 1995-1-1. A review of design principles for steel-CLT beams was completed in reference [19]. Solutions d) and e) comprise welded studs of bolts in grouted or epoxied pockets.…”

“…The behaviour of screwed and bolted connectors can be assessed based on EN 1995-1-1. See also references [19] and [27] for more guidance.…”