Prestressed precast floor slabs: large spans and load ­capacities – including heating and cooling function

In particular, if architecture is using free design for interior space and very large distances have to be spanned, prestressed precast floor slabs of Dennert provide a wide variety of options – even totally without disturbing columns or load-bearing walls; this floor construction allows planners to realize spans of more than 13 m effortlessly. Due to the wide variety of floor thicknesses there are virtually no limits on architecture, high load capacities also meet special requirements in industrial and commercial construction. In case of multi-story construction, there are the additional benefits of excellent fire protection and sound insulation properties.

The 1.20-m wide prestressed concrete hollow core slabs with smooth bottom view are manufactured on extra-long production lines equipped with modern and precise CNC technology. The prestressing steel is automatically pulled and hydraulically prestressed before placing the concrete of the floor slabs. After hardening, every element is exactly cut to the length required in accordance with the specifications given by the client.

The floor slabs provide additional functions, alternatively heating or cooling depending on the season. The SP Therm floor slab, for example, as well as the DX Therm air-conditioned ceiling, incorporate decades-long experience of Dennert, the market leader in Germany concerning thermally-active building components. The solution combines the advantages of a prestressed concrete floor with high energy efficiency. The conduits built in the floor elements allow for cooling and heating via the ceiling and this in combination with extremely short reaction times.

Related articles:

Issue 2018-01 Elbe Decken

Opportunities for precast prestressed concrete floor slabs in building projects

In many European countries, like Belgium or the Netherlands, up to 70 % of all building projects are implemented by means of precast prestressed concrete floor slabs in the meantime. Despite their...

Issue 2017-08 Dennert

„Base“ precast basement range made from waterproof concrete

The old adage of “time is money” also holds true for the construction of basements. German precast producer Dennert based in Schlüsselfeld assembles precast basement units of its own BASE range...

Issue 2020-10 ELBE DECKEN

Serialized construction with prestressed floor slabs

In school construction, where the focus is on functionality, precast prestressed floor slabs are increasingly used. The aim is to ensure high delivery reliability, cost savings and the possibility of...

Issue 2012-03

Precast floor slabs with integrated building services

The Bernkastel-Kues-based Inno­gration GmbH founded in 2010 designs, manufactures and sales multifunctional precast concrete floor elements. The elements distinguish themselves by their ability to...

Issue 2015-05 Elbe Decken

Jumbo concrete floors with unsupported spans of more than 16 m

At the beginning of 2015, a new construction project of the Dresden private all-day secondary school was completed by the owner/developer, the IBB Institute für Bildung und Beratung GmbH, completing...