A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation into the Failure of a Long-Span Glued Laminated Beam
The failure of wood roof members in older buildings is a fairly common occurrence compared to systems built of steel or concrete. The slow-working detrimental effect of sustained loading at relatively high stress levels (i.e., “creep rupture” or “cumulative damage”) is typically viewed as the predominant failure mechanism, but this is not always the case. The following describes a case study of a glulam beam that failed for other reasons. The subject glulam beam that failed absent a significant atypical loading event was one of many in the roof structure of a large building. Each glulam beam was about five feet deep and 100 feet long. At the time of failure, the subject glulam beam was 41 years old. Through the course of the investigation, significant research was performed into multiple aspects of glulam beam behavior, including revisions to design stresses over time, fabrication technology, and time-dependent properties. Detailed field observations were performed to document the failed beam, the surrounding elements, and the assemblies supported by the roof framing. The cause of the failure was ultimately found to be a fabrication error.
Investigation into the Failure of a Long-Span Glued Laminated Beam
The failure of wood roof members in older buildings is a fairly common occurrence compared to systems built of steel or concrete. The slow-working detrimental effect of sustained loading at relatively high stress levels (i.e., “creep rupture” or “cumulative damage”) is typically viewed as the predominant failure mechanism, but this is not always the case. The following describes a case study of a glulam beam that failed for other reasons. The subject glulam beam that failed absent a significant atypical loading event was one of many in the roof structure of a large building. Each glulam beam was about five feet deep and 100 feet long. At the time of failure, the subject glulam beam was 41 years old. Through the course of the investigation, significant research was performed into multiple aspects of glulam beam behavior, including revisions to design stresses over time, fabrication technology, and time-dependent properties. Detailed field observations were performed to document the failed beam, the surrounding elements, and the assemblies supported by the roof framing. The cause of the failure was ultimately found to be a fabrication error.
Investigation into the Failure of a Long-Span Glued Laminated Beam
Shuck, A. M. (author) / Porto, J. A. (author) / Sasaki, K. K. (author)
Structures Congress 2017 ; 2017 ; Denver, Colorado
Structures Congress 2017 ; 276-288
2017-04-04
Conference paper
Electronic Resource
English
Investigation into the Failure of a Long-Span Glued Laminated Beam
| British Library Conference Proceedings | 2017
Effect on the Flexural Strength of Long Span Glued Laminated Timber Beams
| British Library Conference Proceedings | 1994
Xuhong Bridge: A Long Span Wooden Arch Bridge with Glued Laminated Timber
| Taylor & Francis Verlag | 2021
Experimental investigation of glued laminated timber beam-to-beam connection
| BASE | 2013