Herzog, Paul

Diploma Thesis:
1829

Topic:
Database systems for the costing of construction work

Editor:
Paul Herzog

University Professor Responsible:
Univ.-Prof. Dr.-Ing. Dipl.-Wirt.-Ing. Jens Otto

Supervisor:
University Supervisor: Dipl.-Ing. Patrick Maiwald

Editing Period:
19.03.2021 until 26.05.2021

Abstract:
The work examines the use of digital database systems to optimise conventional cost determination methods on the client side. DIN 276 sets the normative requirements for the established cost planning process. Despite standardised procedures, in practice there are sometimes considerable deviations between the forecast costs and the costs determined at the end of the project. Based on the causes of construction cost overruns, the optimisation potential of the working method Building Information Modelling on this process is shown. The technology of model-based cost determination is based on bidirectional communication between CAD software and database systems. Through the intelligent evaluation of the model information as well as an increased planning quality in the early design phases, the additional use of complex cost database systems contributes to a significant increase in cost security. On the basis of two practical examples, significant differences between existing database systems are presented, which influence their cooperative use in the planning process. Finally, a concept for the application of a comprehensive cost management system is presented. The core content is a continuous exchange of information that enables the planning, control and management of costs over the entire project period. The efficient use of such systems requires framework conditions that essentially result from the normative principles, the technical requirements for the BIM model and the specific requirements for the database system.