This paper presents concepts for dealing with topological information in building information models. On the one hand, it shows how to derive topological relationships from ``traditional'' building models consisting of unconnected B-Rep bodies by means of geometric processing algorithms. On the other hand, it discusses the capabilities of topological building modeling based on relational comple...

The success of smartphone technologies changed the way information is processed as more and more geo-referenced structures are emerging linking information to specific locations within our environment. Thereby, Augmented Reality has become a key technology as it analyses the smartphone sensor data (camera, GPS, inertial) to derive the detailed pose of the smartphone, with the aim to correlate o...

This paper reports on an ongoing research project on an "nonpencil" approach in generating architectural forms using nontraditional geometries. Space curves are investigated to determine nodal points in 3D space, which are then interpreted into common architectural elements. The nodal points are used in a variety of ways to generate walls, columns, floors, and volumes. The determination of form...

This paper presents an extension of the BIM technology that allows to manage information during the entire lifecycle of an AEC project. Usually, AEC projects and facility management are dissociated. Our Building Information System plays a central role in the improvement of the design and the management process. The building activity generates a great number of data and information of various ki...

Article history: Received 8 May 2012 Received in revised form 10 April 2014 Accepted 28 May 2014 Available online 22 June 2014 Improving the level of energy efficiency required by building codes for refurbishments and new construction is a powerful lever for reducing greenhouse gas emissions. This paper explores how technological, social, political, and economic factors interact and shape the e...

Incorporating energy efficiency is nowadays the top priority of building renovation projects. The renovation solutions are normally the result of many combined solutions concerning all components of the building (walls, roofs, windows, doors, HVAC, occupation...) and the final outcome is the sum of these micro solutions. The modeling and simulation of the building thermal behavior can quickly b...

in our present research, we focus on the modeling of airflow related to natural disasters, such assand accumulation, with urban form studies. the objective is to find which urban form can promote sand passing andreduce as much as possible stagnation of sand in the building area (streets, alleys, etc.). the urban form design will bediscussed through the simulation of airflow by using computation...

Due to an increasing amount of aerial data there is significant demand in automatic large-scale modeling of buildings. This work presents an image-driven method for automatic building extraction and 3D modeling from large-scale aerial imagery. We introduce a fast unsupervised segmentation technique based on super-pixels. Considering the super-pixels as smallest units in the image space, these r...