Kreislaufwirtschaft im Stahl‐ und Metallleichtbau

Abstract

The implementation of the principles of the circular economy in the construction sector has a major impact on global climate policy goals and has great potential to reduce the environmental impact of the manufacture of building products and the dependence on non-renewable natural resources. This paper provides an overview of different strategies for implementing sustainability and the circular economy in general and in relation to construction. In addition, various examples and initiatives are described that deal with the implementation of these strategies in steel and lightweight metal construction. In particular, these are resource efficiency, reuse and refurbishment.

Establishing European design rules for re‐used steel components

“…However, also in these regulations the issue of mechanical safety and reliability in a thorough approach suited for additional rules of EN 1993 [3] is not sufficiently addressed. There are initial ideas for the creation of suitable standards, see also [27][28][29], which have been further advanced and are described in detail in this article.…”

“…Fig. 2 shows the development of the reliability index β over the years for two different cases, i. e., target reliability levels for ultimate limit state (red) and serviceability limit state considerations (blue) according to EN 1090-1 [28]. The safety level of β = 3.8 (p f, 50a = 10 À 4 ) targeted at 50 years results from the annual return of an extreme load event with p = 0.02 according to quantile distance of the standard normal distribution, Eq.…”