DBPapers
DOI: 10.5593/sgem2012/s17.v4010

EXTREME ACTIONS OF SNOW DRIFT CAUSED BY WIND ON BUILT ENVIRONMENT IN THE CONTEXT OF GLOBAL CLIMATIC CHANGES

E. AXINTE, E. C. TELEMAN, G. VASIES, V. E. ROSCA
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 4, 311 - 318 pp

ABSTRACT

We assist nowadays to climatic changes with strong negative impact on the global
natural environment as well as on the built one. Collapse of dwellings with overturned
and destroyed roofing are now a common media image reported all over the world as
the result of uneven loading from the action of wind combined with snow, their
intensity not being covered by the recommendations provided by the design codes for
engineering.
A thorough knowledge of the fluid mechanics and studies of the drifted snow by wind
bursts on roofs may help the designing engineer to prior identify the extreme loading
areas even if they are not sufficiently presented in the standard situations.
Physical modelling in wind tunnel is an important possibility to visualize the shape of
the snow deposit on the roofs with particular shapes. Furthermore, the modification of
the snow distribution on flat roofs (terraces) due to the presence of solar collectors
mounted on when the building is already in service is a special situation which is
presented in this paper, drawing the attention on the importance of studies on the model
of the whole phenomenon as a prior stage to the design and construction of the
structures.

Keywords: snowdrift, wind tunnel, plane solar collector