New findings of heat transfer and load-bearing capacities

Steel fibre reinforced concrete slabs exposed to fire –

→ 1 Design chart to assess bearing capacities of steel-fibre-reinforced concrete cross-sections subjected to a 90-minute fire

→ Tab. 1 Specimen data of the test series

After several decades of research, the practical application of steel fibre reinforced concrete is no longer subject to a case-by-case approval but now follows the guideline “steel fibre reinforced concrete” [1] of the German Committee for Structural Concrete published in 2012. However, this document does not explicitly consider temperature dependent behaviour of steel fibres. Instead, the rules specified in DIN EN 1992-1-2 and its National Annex apply in case of fire, which is why the favourable influence of steel fibres on cross-sectional level may not be considered in fire design.

Experiment...

Issue 02/2018 Fiber-reinforced concrete in precast construction

Innovations and applications

Regarding engineering aspects, the use of fibre reinforced concretes in precast construction offers enormous potential because it saves time-consuming and wage-intensive reinforcement works. The...

Issue 02/2014 Eurocode 2 or DIN 4102-4?

Structural fire design of precast concrete elements –

Structural fire design of concrete elements shall be done according to DIN EN 1992-1-2 (Eurocode 2 part 1-2) [1] and DIN 4102-4 [2] in Germany. In annex 2.3/5 of the technical construction regulations...

Issue 06/2023

Development of hybrid prefabricated wall panels made of cross-laminated timber and reinforced concrete to meet fire safety specifications

Over the past few years, building regulations have become more open to constructions and surfaces made of combustible materials such as timber. From a fire safety perspective, however, load-bearing...

Issue 11/2024 HOLCIM

Holcim manufactures ultra-high performance concrete panels with Kuralon fibre reinforcement

For its Ductal Cladding and Ductal Envelope concrete panel solutions, building materials giant Holcim uses reinforcement with fibres made from polyvinyl alcohol resin (PVA). More specifically, Holcim...

Issue 02/2021

Punching shear behavior of steel fiber reinforced flat slabs in combination with punching shear reinforcement

The guideline Steel Fibre Reinforced Concrete published by the German Committee for Reinforced Concrete (DAfStb) in 2012 regulates the punching shear design of steel fiber reinforced flat slabs...