Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behaviour and Resistance of Glued-Laminated Timber Subjected to Impact Loading
An increase in the exposure of structures to accidental and intentional blast explosions over the last three decades has led to a desire to increase our understanding of blast load effects on structures. High magnitude and short duration loading events, such as blast explosions and impacts, have the potential to generate catastrophic effects on infrastructure and to cause loss of life. Although design provisions for engineered wood products are included in Canada’s current blast design standard, CSA S850, how these structural materials respond to blast and impact loads across a wide range of high strain rates have not been well documented. An experimental programme was carried out to investigate the flexural behaviour of glued-laminated timber (glulam) subjected to impact loading. A total of nine 137 mm × 267 mm × 2500 mm glulam beams were tested under quasi-static and dynamic loading in order to document high strain rate effects and their behaviour under extreme loading conditions. Dynamic testing was conducted using the newly established drop weight impact testing facility at the Royal Military College of Canada, capable of imparting up to 23 kJ of energy onto small to full scale structural elements. Average dynamic increase factors of 1.13 and 1.20 on the maximum resistance and stiffness, respectively, for strain rates between 0.67 and 1.05 s−1 were determined, and characteristic static and dynamic failure modes were documented. This research will contribute to recommended changes to blast design parameters.
Behaviour and Resistance of Glued-Laminated Timber Subjected to Impact Loading
An increase in the exposure of structures to accidental and intentional blast explosions over the last three decades has led to a desire to increase our understanding of blast load effects on structures. High magnitude and short duration loading events, such as blast explosions and impacts, have the potential to generate catastrophic effects on infrastructure and to cause loss of life. Although design provisions for engineered wood products are included in Canada’s current blast design standard, CSA S850, how these structural materials respond to blast and impact loads across a wide range of high strain rates have not been well documented. An experimental programme was carried out to investigate the flexural behaviour of glued-laminated timber (glulam) subjected to impact loading. A total of nine 137 mm × 267 mm × 2500 mm glulam beams were tested under quasi-static and dynamic loading in order to document high strain rate effects and their behaviour under extreme loading conditions. Dynamic testing was conducted using the newly established drop weight impact testing facility at the Royal Military College of Canada, capable of imparting up to 23 kJ of energy onto small to full scale structural elements. Average dynamic increase factors of 1.13 and 1.20 on the maximum resistance and stiffness, respectively, for strain rates between 0.67 and 1.05 s−1 were determined, and characteristic static and dynamic failure modes were documented. This research will contribute to recommended changes to blast design parameters.
Behaviour and Resistance of Glued-Laminated Timber Subjected to Impact Loading
Lecture Notes in Civil Engineering
Gupta, Rishi (Herausgeber:in) / Sun, Min (Herausgeber:in) / Brzev, Svetlana (Herausgeber:in) / Alam, M. Shahria (Herausgeber:in) / Ng, Kelvin Tsun Wai (Herausgeber:in) / Li, Jianbing (Herausgeber:in) / El Damatty, Ashraf (Herausgeber:in) / Lim, Clark (Herausgeber:in) / Wight, Nicole (Autor:in) / Viau, Christian (Autor:in)
Canadian Society of Civil Engineering Annual Conference ; 2022 ; Whistler, BC, BC, Canada
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022 ; Kapitel: 13 ; 155-166
13.01.2024
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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METHOD TO MANUFACTURE CONSTRUCTION GLUED LAMINATED TIMBER AND CONSTRUCTION GLUED LAMINATED TIMBER
| Europäisches Patentamt | 2015
REINFORCED GLUED LAMINATED TIMBER
| Online Contents | 1996