Refine
Has Fulltext
- yes (30) (remove)
Document Type
- Article (19)
- Conference Proceeding (9)
- Preprint (2)
Institute
- Institut für Strukturmechanik (ISM) (20)
- Graduiertenkolleg 1462 (5)
- Professur Stochastik und Optimierung (3)
- Professur Angewandte Mathematik (2)
- Professur Informatik im Bauwesen (2)
- Bauhaus-Institut für zukunftsweisende Infrastruktursysteme (b.is) (1)
- Materialforschungs- und -prüfanstalt an der Bauhaus-Universität (1)
- Professur Modellierung und Simulation - Konstruktion (1)
Keywords
- Angewandte Informatik (9)
- Angewandte Mathematik (9)
- Computerunterstütztes Verfahren (9)
- Building Information Modeling (6)
- Data, information and knowledge modeling in civil engineering; Function theoretic methods and PDE in engineering sciences; Mathematical methods for (robotics and) computer vision; Numerical modeling in engineering; Optimization in engineering applications (6)
- Maschinelles Lernen (6)
- Erdbeben (5)
- OA-Publikationsfonds2020 (5)
- rapid visual screening (4)
- Machine learning (3)
The fire resistance of concrete members is controlled by the temperature distribution of the considered cross section. The thermal analysis can be performed with the advanced temperature dependent physical properties provided by 5EN6 1992-1-2. But the recalculation of laboratory tests on columns from 5TU6 Braunschweig shows, that there are deviations between the calculated and measured temperatures. Therefore it can be assumed, that the mathematical formulation of these thermal properties could be improved. A sensitivity analysis is performed to identify the governing parameters of the temperature calculation and a nonlinear optimization method is used to enhance the formulation of the thermal properties. The proposed simplified properties are partly validated by the recalculation of measured temperatures of concrete columns. These first results show, that the scatter of the differences from the calculated to the measured temperatures can be reduced by the proposed simple model for the thermal analysis of concrete.