Timber Roof Structures in Extreme Weather Conditions

Abstract:

Beside seismic activity climate changes, reflecting in extreme events such as heat and cold waves, storms and floods, presents the main natural hazards. Although predicting events perimeter is not trivial, the vulnerabilities of society emphasizing built environment should be at least critically estimated and re-estimated, especially after the occurrence of such event. Many strong thunderstorms causing huge damage to agriculture and to build environment occurred in recent summers. Meteorologists concluded that summer storms especially those ones in July and August 2008 were very intense and affected many Slovenian regions. Extensive damage to buildings rose up questions about possible causes: bad construction practice, use of inappropriate materials, deficient maintenance and inadequate building regulation relating to loads. Some experts also claimed that additional material and product characteristics should be tested /defined to prevent extensive damage, like hail resistance for example. Slovenian National Building and Civil Engineering Institute (ZAG) tried to answer to these questions in a special research project, financed by Slovenian Ministry for Environment and Spatial Planning (MOP).

• Periodical: Advanced Materials Research (Volume 778)
• Pages: 1080-1087
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.778.1080
• Online since: September 2013
• Authors: Tomaž Pazlar
• Keywords: Hail, Roof Structure, Summer Storms, Timber, Wind Load

References

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[2] J. Srpčič, T. Pazlar, Damage to roof structures in summer storms, Gradbenik, 13 (2009) 14-16 (in Slovenian language).

[3] T. Pazlar, J. Srpčič, Damage to buildings in summer storms, in Proceedings of 32nd annual meeting of Slovenian building and civil engineers, Bled, 2010, pp.149-156 (in Slovenian language).

[4] EN 1991-1-4: 2005 Eurocode 1: Actions on structures - Part 1-4: General actions - Wind actions.

DOI: 10.1680/dgte1.31524

[5] EN 1991-1-4: 2005/A101: 2008 Eurocode 1: Actions on structures - Part 1-4: General actions - Wind actions - National annex.

DOI: 10.3403/30364268

[6] ARSO Slovenian Environment Agency: - Analysis of past hazard events, available on http: /www. arso. gov. si/vreme/poro%C4%8Dila%20in%20projekti/ (in Slovenian language).