Optimizing the heat transfer of anchoring components, here: brickwork support brackets
Author(s): Matthias Roik, C. Piesker, M. Stegemann
Paper category: Proceedings
Book title: International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) Energy Efficient Building Design and Legislation
Editor(s): Marina Bagarić, Ivana Banjad Pečur, Hartwig M. Künzel
Publisher: RILEM Publications SARL
Publication year: 2019
Total Pages: 08
Abstract: Raised requirements towards energy efficiency of buildings are stipulated widely, for example in Germany it is the Energie Einspar-Gesetz (EnEG)  which is implemented through the EnEV . Affecting a building’s energy efficiency, façade constructions play a decisive role.
The here examined façade type is the brickwork façade where the facing layer is supported by special fixing brackets which have to penetrate the insulating layer. A new generation of these brackets was specially designed to minimize the entire heat transfer. In the design process described here, the Chi-value and the material utilization serve as optimization functions for generating the new shape. It was shown that the minimization of the steel cross-section in the penetration corresponds directly to the reduction of the thermal bridge.
The new shape saves costs and material while improving production with minimized welds, minimized weight, and minimized laser cutting length including a waste reduction. In addition, the load was increased. This not only improves the environmental balance by saving resources, but also by reducing heat losses over many years to come.
This paper gives an overview of the calculation methods and test methods. The design rules are explained, and the results are illustrated.
Online publication: 2019
Publication type : full_text
Public price (Euros): 0.00
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