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See detailDigitalization in Construction, Computer-based Design for Structural Elements, PArt 2: Analyses and Validation of Compliance to EuroCodes
Schäfer, Markus UL; Bender, Michel; Zahlten, Wolfhard et al

Learning material (2021)

A classic structural analysis is characterized by the usage of a wide spectrum of manual, specialized analysis methods. An engineer has to break down the complex problem into small manageable sub-problems ... [more ▼]

A classic structural analysis is characterized by the usage of a wide spectrum of manual, specialized analysis methods. An engineer has to break down the complex problem into small manageable sub-problems. This procedure will be completely superseded by the advent of numerical methods. A full model of the spatial structure will be built up. A similar revolution has already begun by the introduction of finite shell and volume elements into commercially available FE software. The idea is that these models are closer to reality and allow us to capture both global and local effects in one single comprehensive model. This, however, introduces modelling questions and numerical effects, which are explicitly excluded from simplified theory, and questions arise regarding the trustworthiness of these results. Shell elements have already been fairly well established in practical engineering. The next step could be the use of volume elements to overcome certain restriction inherent in shell formulations. One driving force for this tendency is BIM (Building Information Modelling). Here the geometrical model is, like nature itself, fully 3D. It can be directly translated into the Finite Element Method (FEM). However, structural design in the 27 EU member states and 4 EFTA countries has to be performed according to the Eurocodes (EC), representing harmonized European Standards (EN) for the structural design. These design codes regulate essential requirements regarding mechanical resistance and stability as well as safety aspects. The current Eurocodes essentially stipulate engineering design models which can easily be transferred to classical structural analyses, but often do not give comprehensive references to the application and evaluation of advanced numerical simulations. The application of associated software products is not regulated by norms. This situation often results in discussions and different interpretations of the design results. Ultimately, false computational assumptions and misinterpretations can lead to damages and unsafe designs. Guidance for the verification of the software results is required and the link to the current and upcoming second generation of Eurocodes is also presented by the project. In parallel the possibilities by digitalization in construction by Building Information Modelling and the transfer of data from the architectural model to the structural model have been investigated [less ▲]

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See detailDigitalization in Construction, Computer-based Design for Structural Elements - BIM and structural engineering - Part 1: Impact of digitalization on structural engineering in the future
Schäfer, Markus UL; Bender, Michel; Zahlten, Wolfhard et al

Learning material (2021)

To better understand the background and complexity of BIM and digitalization within structural engineering, the theoretical approach will highlight the underlying basics first. To draw the line from this ... [more ▼]

To better understand the background and complexity of BIM and digitalization within structural engineering, the theoretical approach will highlight the underlying basics first. To draw the line from this theory driven basics to real live application, the thesis will give multiple examples of how BIM is currently used in practice. In addition to the detailed explanation, these examples will serve as a base to analyze the current situation and problems which still need to be overcome. As far as possible for the respective research scope, potential areas of improvements will be outlined. To gain a better understanding of the current importance of BIM and digitalization within the German construction industry, engineers and companies will be surveyed. [less ▲]

Detailed reference viewed: 35 (1 UL)