Geometrical specification of architectural concepts in the context of building s thermodynamics

This study is interested in the attribution of technological properties to geometrical elements in a 3D architectural modeler. We propose an original method based on the principle of semantic groupings of faces by geometrical requests. We describe the method and the results of interviews led with architects to identify the relevant groupings, then we list the simple geometrical requests developed within the modeler for the selection of these groupings and we report the efficiency of the method on a case. We conclude by the benefits and limits of our method

Some advice for migrating to IFC

Nowadays, the BIM (Building Information Modelling) paradigm is a central topic in the CAAD community. Next to the commercial solutions, the IFC (Industry Foundation Classes) have emerged as the best open standard candidate for BIM interoperability. Despite the efforts of the community for promoting IFC over the last 15 years, it seems that its practical adoption in real-life projects has been very limited. The goal of this article is to explore how useful IFC can be today and to provide the reader with some advice for an effective adoption of IFC. Over the last year, we have conducted a project aiming at acquiring a sound understanding of IFC. It was made of two complementary investigations. On one hand, we have focused on the commercial modelling tools and the IFC support they were offering. On the other hand, we have focused on the IFC-based software developments. We have developed a tool converting IFC files into a dedicated thermal assessment based model. We will summarise the experience we have acquired in this project into some advice for users migrating to IFC. Our goal is to confront the practical aspects of the IFC developments, with both the theoretical ambitions and the commercial support currently available

DCDS - Distant Collaborative Design Studio

This paper introduces new supporting tools in the field of distant collaborative design, namely DCDS and CRTI-weB. These prototypes respectively support: the early stages of design, through the support of the crucial initial step of free-hand sketches shared in real-time, and the asynchronous collaborative activities. The main goal of this paper is to propose the use of these innovative tools as an efficient and realistic way of managing long distance collaboration, to effectively serve the designersi needs. This proposition is analyzed and addressed through a real-size experiment featuring 30 architecture and architectural-engineering students, working together in real-time at different locations (Belgium and France). This experiment and the necessary survey open up interesting fields of investigation, such as the relevance of the proposed services in supporting distant collaborative design in architecture and the benefit this represents for students to merge the IT aspects and the design studio. The methodology and the replicability are analyzed to increase the level and quality of formation of our students and, finally, a criticism of the tools confirms a benefit for the developing teams

Search for an animal model of hyperdynamic septic shock : Hemodynamic effects of the injection of weak doses of endotoxin in the dog

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