Hasil untuk "Details in building design and construction. Including walls, roofs"

Amir Rezaie, Michele Godio, Katrin Beyer

Onur Arslan, Francesco Messali, Eleni Smyrou et al.

Lyesse Laloui, Alessandro F. Rotta Loria

M Kalousek, M Novák

Abstract Thermal bridge is a very common and undesirable phenomenon in a building. Thermal joint (bridge) is usually based on material or geometry reasons or their combinations. Many types (connection of window – wall, pillar – wall), can be calculated and evaluated sufficiently in 2D section, but in some types it is necessary to take into account 3D heat conduction. For example: a corner with ceiling (roof) and two walls where is strong deformation of isotherms and the internal surface temperature is definitely lower than in 2D section. According to the Czech Technical Standard it is necessary to fulfil law requirement – Temperature Factor at internal surface lowest temperature „at each location“. Recommendation is solving of “differential equation multi-dimensional of thermal field”. In this case of “building corner” project engineer has to decide for 3D modelling. In the contribution there is presented a mistake in 2D model, the situation when it is necessary to use 3D model. Additionally, there are recommendations to eliminate the risk of condensation and mould.

I. Lombillo, H. Blanco, L. Villegas et al.

Mustafa Mahamid, Majid Houshiar

M.I. Martínez-Garrido, S. Aparicio, R. Fort et al.

P. Meixner, F. Leberl, M. Brédif

Abstract. Current Internet-inspired mapping data are in the form of street maps, orthophotos, 3D models or street-side images and serve to support mostly search and navigation. Yet the only mapping data that currently can really be searched are the street maps via their addresses and coordinates. The orthophotos, 3D models and street-side images represent predominantly "eye candy" with little added value to the Internet-user. We are interested in characterizing the elements of the urban space from imagery. In this paper we discuss the use of street side imagery and aerial imagery to develop descriptions of urban spaces, initially of building facades and roofs. We present methods (a) to segment facades using high-overlap street side facade images, (b) to map facades and facade details from vertical aerial images, and (c) to characterize roofs by their type and details, also from aerial photography. This paper describes a method of roof segmentation with the goal of assigning each roof to a specific architectural style. Questions of the use of the attic space, or the placement of solar panels, are of interest. It is of interest that roofs have recently been mapped using LiDAR point clouds. We demonstrate that aerial images are a useful and economical alternative to LiDAR for the characterization of building roofs, and that they also contain very valuable information about facades.

DB Paul, RR Davidson, NJ Cavalli

Description Learn from both successful and unsuccessful case histories presented by an international group of engineers, scientists, and practitioners in this publication from ASTM. 30 peer-reviewed papers provide experiences and findings related to the design, construction, and quality control methods for slurry walls. In four sections: • State-of-the-Art • Hazardous Waste • Seepage Cutoffs • and Structural.

AC Yanoviak

Hawaii has its share of water infiltration problems and remedial repair solutions that have also resulted in significant failures attributed to improper design and construction of exterior building walls. Hawaii also has its share of design and construction lawsuits and apportioned culpability. It is well known that this can be a very expensive way to learn, as it affects profitability. It has become increasingly apparent that in many instances the building codes and standards are minimal at best.