TY - JOUR A1 - König, Reinhard A1 - Thurow, Torsten A1 - Braunes, Jörg A1 - Donath, Dirk A1 - Schneider, Sven T1 - Technische Einführung in FREAC: A Framework for Enhancing Research in Architectural Design and Communication T1 - Technical introduction to Freac N2 - Im vorliegenden Beitrag wird ein Framework für ein verteiltes dynamisches Produktmodell (FREAC) vorgestellt, welches der experimentellen Softwareentwicklung dient. Bei der Entwicklung von FREAC wurde versucht, folgende Eigenschaften umzusetzen, die bei herkömmlichen Systemen weitgehend fehlen: Erstens eine hohe Flexibilität, also eine möglichst hohe Anpassbarkeit für unterschiedliche Fachdisziplinen; Zweitens die Möglichkeit, verschiedene Tools nahtlos miteinander zu verknüpfen; Drittens die verteilte Modellbearbeitung in Echtzeit; Viertens das Abspeichern des gesamten Modell-Bearbeitungsprozesses; Fünftens eine dynamische Erweiterbarkeit sowohl für Softwareentwickler, als auch für die Nutzer der Tools. Die Bezeichnung FREAC umfasst sowohl das Framework zur Entwicklung und Pflege eines Produktmodells (FREAC-Development) als auch die entwickelten Tools selbst (FREAC-Tools). T3 - Arbeitspapiere Informatik in der Architektur - Nr. 2 KW - CAD KW - Softwareentwicklung KW - Experimentalplattform KW - Produktmodell KW - digitales Gebäudemodell KW - Freac Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:101:1-201105183216 UR - http://infar.architektur.uni-weimar.de/service/drupal-infar/Arbeitspapiere ER - TY - CHAP A1 - Wasserfuhr, R. A1 - Scherer, Raimar J. T1 - Information Management in the Concurrent Design Process N2 - Former achievements for integrated information management have concentrated on interoperability of applications like e.g. CAD, structural analysis or facility management, based on product models introducing additional application independent model layers (core models). In the last years it has become clear, that besides interoperability of autonomous applications, the concurrent processes of model instantiation and evolution have to be modeled, including the relationship to available project resources, persons, legal requirements and communication infrastructure. This paper discusses some basic concepts for an emerging methodology relating the fields of product modeling, project management and workflow systems by elaborating the concept of a process model, which gives a decomposition of the project goals into executable activities. Integrated information management systems should be related to process models to detect pending activities, deadlocks and alternatives of execution. According to the heterogeneous nature of project communication processes, a method for dynamic classification of ad-hoc activities is suggested, that complements predefined highlevel process definitions. In a brief outline of the system architecture, we show how sophisticated information management systems can be broadly made available by using conventional Internet technologies. KW - Informationsmanagement KW - Produktmodell KW - Prozessmodell KW - Prozessmanagement KW - Internet Y1 - 1997 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-4456 ER - TY - JOUR A1 - Semenov, Vitaly A1 - Alekseeva, Elena A1 - Tarlapan, Oleg T1 - Virtual Construction using Map-based Approach N2 - The paper presents a general map-based approach to prototyping of products in virtual reality environments. Virtual prototyping of products is considered as a consistent simulation and visualization process mapping the source product model into its target visual representations. The approach enables to interrelate formally the product and visual information models with each other by defining mapping rules, to specify a prototyping scenario as a composition of map instances, and then to explore particular product models in virtual reality environments by interpreting the composed scenario. Having been realized, the proposed approach provides for the strongly formalized method and the common software framework to build virtual prototyping applications. As a result, the applications gain in expressiveness, reusability and reliability, as well as take on additional runtime flexibility... KW - Produktmodell KW - Simulation KW - Bautechnik KW - Virtuelle Realität KW - Bauwerk Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2447 ER - TY - JOUR A1 - Romberg, Richard A1 - Niggl, Andreas A1 - van Treeck, Christoph T1 - Structural Analysis based on the Product Model Standard IFC N2 - In this paper we present a computer aided method supporting co-operation between different project partners, such as architects and engineers, on the basis of strictly three-dimensional models. The center of our software architecture is a product model, described by the Industry Foundation Classes (IFC) of the International Alliance for Interoperability (IAI). From this a geometrical model is extracted and automatically transferred to a computational model serving as a basis for various simulation tasks. In this paper the focus is set on the advantage of the fully three-dimensional structural analysis performed by p-version of the finite element analysis. Other simulation methods are discussed in a separate contribution of this Volume (Treeck 2004). The validity of this approach will be shown in a complex example. KW - Produktmodell KW - Simulation KW - Bautechnik KW - Statik KW - Standard Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2433 ER - TY - JOUR A1 - Kiviniemi, Arto A1 - Fischer, Martin T1 - Requirements Management Interface to Building Product Models N2 - In current AEC practice client requirements are typically recorded in a building program, which, depending on the building type, covers various aspects from the overall goals, activities and spatial needs to very detailed material and condition requirements. This documentation is used as the starting point of the design process, but as the design progresses, it is usually left aside and changes are made incrementally based on the previous design solution. These incremental small changes can lead to a solution that may no longer meet the original requirements. In addition, design is by nature an iterative process and the proposed solutions often also cause evolution in the client requirements. However, the requirements documentation is usually not updated accordingly. Finding the latest updates and evolution of the requirements from the documentation is very difficult, if not impossible. This process can lead to an end result, which is significantly different from the documented requirements. Some important requirements may not be satisfied, and even if the design process was based on agreed-upon changes in the scope and requirements, differences in the requirements documents and in the completed building can lead to well-justified doubts about the quality of the design and construction process... KW - Produktmodell KW - Simulation KW - Bautechnik KW - Bauwerk KW - Modellierung Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2427 ER - TY - JOUR A1 - Holtzhauer, Eric A1 - Saal, Helmut T1 - Product modelling in the steel construction domain N2 - The complexity of the relationships between the actors of a building project requires high efficiency in communication. Among other things, data sharing is crucial. The exchange of data is made possible by interfaces between expert programs, which rely on product models. The latter are neutral standards with formal definitions of building objects and their attributes. This paper deals with the state of the art and the research activities concerning product models in the steel construction domain and the advantages provided by this technology for the sector. KW - Produktmodell KW - Simulation KW - Bautechnik KW - Stahlbau Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2415 ER - TY - JOUR A1 - Kang, Shihchung A1 - Miranda, Eduardo T1 - Physics Based Model for Simulating the Dynamics of Tower Cranes N2 - The goal of the research is to increase the understanding of dynamic behaviors during the crane operation, and develops computer-aided methods to improve the training of crane operators. There are approximately 125,000 cranes in operation today in the construction industry, responsible for major portion of erection activities. Unfortunately, many accidents occur every year in the U.S. and other countries related to the operation of cranes in construction sites. For example on November 28, 1989 a tower crane collapse during the construction of a building in San Francisco killing four construction workers, one civilian and injuring 28. According to the statistics from Occupational Safety Health Administration (OSHA), there were 137 crane-related fatalities from 1992 to 2001 in the US. A well-known internet website that keeps track of crane-related accidents (craneaccidents.com), reports 516 accidents and 277 fatalities from 2000 to 2002. These statistics show that even though many measures have been taken to decrease the number of crane-related accidents (Braam, 2002), the number of crane related accidents is still very large. It is important to recognize that each construction related fatality is not only a great human loss but also increases the costs of insurance, lawsuits, and the construction budget due to delay of a project (Paulson 1992)... KW - Produktmodell KW - Simulation KW - Bautechnik KW - Turmdrehkran KW - Dynamische Belastung Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2409 ER - TY - JOUR A1 - Gao, Zuoren A1 - Wu, Weiyu A1 - Ren, Aizhu T1 - Physically Based Modeling and Multi-Physical Simulation System for Wood Structure Fire Performance N2 - This research is devoted to promoting the performance-based engineering in wood structure fire. It looks into the characteristic of the material, structural composing and collapse detecting to find out the main factors in the wood structure collapse in fire. The aim of the research is to provide an automatic simulation platform for the complicated circulation. A physically based model for slim member for beams and columns and a frame of multi-physical simulation are provided to implement the system. The physically based model contains material model, structural mechanics model, material mechanics model, as well as geometry model for the compositive simulation. The multi-physical simulation is built on the model and has the capacity to carry out a simulation combining structural, fire (thermal, CFD) and material degradation simulation. The structural and fire simulation rely on two sophisticated software respectively, ANSYS (an FEA software) and FDS (with a core of CFD). Researchers of the paper develop system by themselves to combine the two existing ones. The system has the capability to calculate the wood char to find out the loss of cross-section and to detect the collapse caused in different ways. The paper gives a sample of Chinese traditional house to show how this simulation system works. KW - Produktmodell KW - Simulation KW - Bautechnik KW - Holzbau KW - Brandschutz Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2381 ER - TY - JOUR A1 - Shih, Naai-Jung A1 - Lee, Wen-Pang T1 - Particle Simulation and Evaluation of Personal Exposure to Contaminant Sources in an Elevation Space N2 - An elevator, which figures a small volume, is normally used by everyone for a short period of time and equipped with simple ventilation system..Any contaminant released within it may cause serious problem. This research adapt a fire and smoke simulation software (FDS) into non-fire indoor airflow scario. Differently from previous research, particles are chosen as a risk evalution unit. A personal and multi-personal exposure model is proposed. The model takes the influence of the human thermal boundary, coughing, inhalation, exhalation, standing position, and the fan factor into account. The model is easy-to-use and suitable for the design of elevator system in practice. KW - Produktmodell KW - Simulation KW - Bautechnik KW - Luft KW - Schadstoffkonzentration Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2376 ER - TY - JOUR A1 - Vogel, Manfred A1 - Breit, Manfred A1 - Märki, Fabian T1 - Optimization of 4D Process Planning using Genetic Algorithms N2 - The presented work focuses on the presentation of a discrete event simulator which can be used for automated sequencing and optimization of building processes. The sequencing is based on the commonly used component–activity–resource relations taking structural and process constraints into account. For the optimization a genetic algorithm approach was developed, implemented and successfully applied to several real life steel constructions. In this contribution we discuss the application of the discrete event simulator including its optimization capabilities on a 4D process model of a steel structure of an automobile recycling facility. KW - Produktmodell KW - Simulation KW - Bautechnik KW - Genetischer Algorithmus Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2360 ER -