Subproject 5

Intelligent substitution models for structural design

Project leader: Univ.-Prof. Dr.-Ing. Martina Schnellenbach-Held, University of Duisburg-Essen


Preliminary and draft planning process of building
  • Structural specifications have a significant influence on the advanced draft.
  • The concept of the bearing structure also affects construction time and costs.
  • In advance, only few boundary conditions are known.
  • An early integration of structural design knowledge is missing.
  • Uncertainty of influential parameters complicates the design process.
Obstacles in the conventional design process 
  • An early cooperation of all involved planners is necessary.
  • Decisions are made based on few uncertain parameters.
  • Models for a holistic process for preliminary design are missing.
  • The highly complex decision-making process as well as the extensive expert knowledge can hardly be covered by conventional methods.
  • This results in an iterative process with design revisions in several cycles.
Up to now, models for an early integration of all relevant aspects are non-existent.


Scientific objectives

Formalization of engineering knowledge
  • Required detail-levels as well as their information demands are identified.
  • Fuzzy methods are utilized for the development of LoD-dependent knowledge bases.
  • Foundation of the intelligent substitution models is the inference-based evaluation of the fuzzy knowledge bases for preliminary and draft planning process.
  • The iterative process is displaced by the approach of fuzzy boundaries.
  • Extension of the substitution models enables management of design changes.
Detail-level dependent knowledge system
  • The substitution models contain methods for a complex decision making.
  • The system provides an early support in the design process.
  • Evaluation and consideration of design modifications are rendered possible.
  • Design cycles and revisions of the conventional process are avoided.
  • Realizable and economically optimized support structures are pre-designed.
Development of intelligent substitution models for structural design
  • For harmonization and efficiency increase of the design process.
  • For an early integration of structural design knowledge into the design process.
  • For a holistic assistance in the preliminary design process.


Figure 1: Basic detailling system for structural pre-design with included Adaptive Levels of Development (ALoD).

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Letzte Änderung: 01.04.2020 | Ansprechpartner/in: Inhalt & Technik