@inproceedings{ObergriesserBorrmann, author = {Obergrießer, Mathias and Borrmann, Andre}, title = {Infrastructural BIM standards-development of an Information Delivery Manual for the geotechnical infrastructural design and analysis process}, series = {eWork and eBusiness in Architecture, Engineering and Construction - proceedings of the 9th European Conference on Product and Process Modelling 2012, Reykjavik, Iceland,25-27 July 2012}, booktitle = {eWork and eBusiness in Architecture, Engineering and Construction - proceedings of the 9th European Conference on Product and Process Modelling 2012, Reykjavik, Iceland,25-27 July 2012}, publisher = {Taylor \& Francis}, pages = {581 -- 587}, abstract = {Defining infrastructural BIM standards is an essential issue to successfully implement BIM in the civil engineering domain and to gain acceptance of engineers, software developers and executive users. For this reason the paper proposes a way to improve collaboration between the geomechanical infrastructural design and analysis process, by introducing an infrastructural Information Delivery Manual (IDM). To realize IDM, the traditional geomechanical infrastructural use case was defined and the process specific workflow (activities \& data exchange) was determined by developing an infrastructural process map. In order to ensure correct data exchange between the involved processes various Exchange Requirements (ER) were specified. But to the effect an infrastructural product model like IFC is still not available, the data exchange as well as the ER specification was made by different formats. At the end of this research activity the Model View Definition (MVD) was discussed.}, language = {en} } @article{SchorrBorrmannObergriesseretal., author = {Schorr, Markus and Borrmann, Andr{\´e} and Obergrießer, Mathias and Ji, Yang and G{\"u}nthner, Willibald A. and Rank, Ernst}, title = {Employing product data management systems in civil engineering projects: Functionality analysis and assessment}, series = {Journal of soft computing in civil engineering : SCCE}, volume = {25}, journal = {Journal of soft computing in civil engineering : SCCE}, number = {6}, publisher = {ASCE}, address = {New York, NY}, pages = {430 -- 441}, abstract = {Product Data Management (PDM) systems are well established in the manufacturing industry. Here, they form the standard solution for the central storage of all data relating to a product and the processes involved in its manufacture. Particularly the consistent management of CAD models, including sophisticated versioning techniques and access rights management as well as the integrated workflow management are attractive features for using PDM systems also for civil engineering projects. This paper investigates the technical concepts behind PDM systems and compares their suitability as a data management solution in civil engineering projects with that of Document Management Systems and Product Model Servers. Alongside a comparative study of the major PDM systems available on the market, we also present a case study involving a PDM system that has been employed for a concrete civil engineering project.}, language = {en} } @inproceedings{JiBorrmannObergriesser, author = {Ji, Yang and Borrmann, Andr{\´e} and Obergrießer, Mathias}, title = {Toward the exchange of parametric bridge models using a neutral data format}, series = {Computing in Civil Engineering 2011, Proceedings of the 2011 ASCE International workshop ORKSHOP on Computing in civil engineering, June 19-22, 2011, Miami, Florida}, booktitle = {Computing in Civil Engineering 2011, Proceedings of the 2011 ASCE International workshop ORKSHOP on Computing in civil engineering, June 19-22, 2011, Miami, Florida}, publisher = {American Society of Civil Engineers ASCE}, address = {Reston, VA}, doi = {10.1061/41182(416)65}, pages = {528 -- 535}, abstract = {While there are mature data models for exchanging semantically rich building models, no means for exchanging bridge models using a neutral data format exist so far. A major challenge lies in the fact that a bridge's geometry is often described in parametric terms, using geometric constraints and mathematical expressions to describe dependencies between different dimensions. Since the current draft of IFC-Bridge does not provide a parametric geometric description, this paper presents a possible extension and describes in detail the object-oriented data model proposed to capture parametric design including geometric and dimensional constraints. The feasibility of the concept has been verified by actually implementing the exchange of parametric models between two different computer-aided design (CAD) applications.}, language = {en} } @article{JiBorrmannBeetzetal., author = {Ji, Yang and Borrmann, Andr{\´e} and Beetz, Jakob and Obergrießer, Mathias}, title = {Exchange of Parametric Bridge Models Using a Neutral Data Format}, series = {Journal of Computing in Civil Engineering}, volume = {27}, journal = {Journal of Computing in Civil Engineering}, number = {6}, publisher = {American Society of Civil Engineers}, address = {Reston, VA}, doi = {10.1061/(asce)cp.1943-5487.0000286}, pages = {593 -- 606}, abstract = {Parametric modeling is a well-established methodology in the field of mechanical engineering. It allows for the creation of flexible geometric models using parameters for dimensions and makes it possible to define numeric relationships between these parameters by means of mathematical formulas and define geometric-topological constraints between geometric entities. The result is a flexible geometric model that can be steered through the manipulation of its primary parameters. In contrast to explicit geometric models with fixed dimensions, a parametric model can capture the design intent and represent domain knowledge. The use of parametric modeling techniques is particularly beneficial for designing bridges. This is because the geometric design of bridges is mainly determined by external constraints resulting from the size and the layout of both the overlying and the undercrossing carriageway. This reduces the effort required for reworking when changes are made, while simultaneously providing a high degree of reusability for the model in other, similar projects, resulting in significantly increased efficiency in the bridge design process. Because of the strong fragmentation of the architecture, engineering, and construction (AEC) industry, the data exchange between the different participants in a construction project is of crucial importance. The use of neutral, open data formats has proved to be the most suitable approach to realize this data exchange. However, currently existing neutral data formats do not allow for an exchange of parametric geometry. To overcome these technical limitations, this paper introduces an extension to the IFC-Bridge format, thus providing a means of interchanging parametric bridge models. This article describes in detail the necessary entities introduced to define parameters and capture dimensional and geometric constraints. The suitability of the developed extensions is proved by presenting the successful transfer of parametric bridge models between two parametric design systems as well as from a design system to a structural analysis system.}, language = {en} } @inproceedings{EuringerObergriesserJietal., author = {Euringer, Thomas and Obergrießer, Mathias and Ji, Yang and Baumg{\"a}rtel, T. and Borrmann, Andr{\´e} and Rank, Ernst}, title = {GroundXML: An addition of aligmnent and subsoil specific cross-sectional data to the LandXML scheme}, series = {Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Funchal, Madeira, Portugal, 1-4 September 2009}, booktitle = {Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Funchal, Madeira, Portugal, 1-4 September 2009}, editor = {Topping, B. H. V. and Costa Neves, L. F. and Baros, R. C.}, publisher = {Civil-Comp Press}, address = {Stirlingshire, UK}, isbn = {9781905088300}, language = {en} } @article{BorrmannSchorrObergriesseretal., author = {Borrmann, Andr{\´e} and Schorr, Markus and Obergrießer, Mathias and Ji, Yang and Wu, I-Chen and G{\"u}nthner, Willibald A. and Euringer, Thomas and Rank, Ernst}, title = {Using product data management systems for civil engineering projects - Potentials and obstacles}, series = {Computing in civil engineering : proceedings of the 2009 ASCE International Workshop on Computing in Civil Engineering ; June 24 - 27, 2009, Austin, Texas}, volume = {346}, journal = {Computing in civil engineering : proceedings of the 2009 ASCE International Workshop on Computing in Civil Engineering ; June 24 - 27, 2009, Austin, Texas}, editor = {Caldas, Carlos H. and O'Brien, William J.}, publisher = {ASCE}, pages = {359 -- 369}, language = {en} } @inproceedings{EuringerObergriesserBorrmannetal., author = {Euringer, Thomas and Obergrießer, Mathias and Borrmann, Andr{\´e} and Rank, Ernst}, title = {Integration of geotechnical design and analysis processes using a parametric and 3D-model based approach}, series = {International Workshop on Computing in Civil Engineering, 19.-22.06.2011, Miami, Florida, USA}, booktitle = {International Workshop on Computing in Civil Engineering, 19.-22.06.2011, Miami, Florida, USA}, publisher = {American Society of Civil Engineers}, doi = {10.1061/41182(416)53}, pages = {430 -- 437}, abstract = {The aim of this work is to improve the integration between the geotechnical and infrastructural designing, modeling and analyzing processes. Up to now these three planning stages are executed isolated and without the required data exchange between each other. This separation leads to time-consuming and expensive manual re-input of geometric and semantic data. Currently, roads are designed using the traditional approach which is based on various 2D drawings. The current design process focuses on the roadway itself, additional geotechnical conditions such as the slope angle of the dam or the position of a retaining wall are not considered. To solve these problems, a new parametric and 3D-model based approach has been developed in the research project ForBAU — The virtual construction site. This new approach is based on the traditional 2D infrastructure planning process, but includes a new parameterized 3D modeling concept. Different open data formats such as LandXML and GroundXML allow data integration with both, a parametric Computer Aided Design (CAD) system and a geotechnical engineering software. An automatic update function ensures data flow without loss of information. Usage of this new approach will accelerate the infrastructure design and provide a parametric 3D-model approach to close the gap between the geotechnical and the infrastructure planning process. This paper provides detailed information about this new integration concept and gives an overview on the various implementation steps.}, language = {en} }