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Evaluation of a Long-Span Mass Timber Floor Under Footfall Vibration Loads
The following paper presents a series of footfall vibration tests run on a full-scale mock-up of the long-span floor system used in Fast+Epp’s Structural Engineers’ new home office. The mock-up consisted of four 3ply Cross-Laminated Timber (CLT) panels supported by glue-laminated timber (glulam) beams that span 11 m. Screws were used to connect the CLT panels to the glulam beams, and several different screw spacings were considered during testing. Two main goals were considered during vibration testing: evaluate how different spacings of screws affected the composite action between the glulam beams and CLT panels and estimate the amount of the vibration in the building floor. Measured accelerations on the floor were used to estimate its vibration performance and fundamental. It was found that the mock-up had a fundamental frequency of approximately 7 Hz and relatively high acceleration response. It was found that adding screws stiffened the system by approximately 40%, but that there were diminishing returns in stiffness increase as more screws were added.
Evaluation of a Long-Span Mass Timber Floor Under Footfall Vibration Loads
The following paper presents a series of footfall vibration tests run on a full-scale mock-up of the long-span floor system used in Fast+Epp’s Structural Engineers’ new home office. The mock-up consisted of four 3ply Cross-Laminated Timber (CLT) panels supported by glue-laminated timber (glulam) beams that span 11 m. Screws were used to connect the CLT panels to the glulam beams, and several different screw spacings were considered during testing. Two main goals were considered during vibration testing: evaluate how different spacings of screws affected the composite action between the glulam beams and CLT panels and estimate the amount of the vibration in the building floor. Measured accelerations on the floor were used to estimate its vibration performance and fundamental. It was found that the mock-up had a fundamental frequency of approximately 7 Hz and relatively high acceleration response. It was found that adding screws stiffened the system by approximately 40%, but that there were diminishing returns in stiffness increase as more screws were added.
Evaluation of a Long-Span Mass Timber Floor Under Footfall Vibration Loads
Lecture Notes in Civil Engineering
Gupta, Rishi (editor) / Sun, Min (editor) / Brzev, Svetlana (editor) / Alam, M. Shahria (editor) / Ng, Kelvin Tsun Wai (editor) / Li, Jianbing (editor) / El Damatty, Ashraf (editor) / Lim, Clark (editor) / Christian, Slotboom (author) / Carla, Dickof (author)
Canadian Society of Civil Engineering Annual Conference ; 2022 ; Whistler, BC, BC, Canada
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022 ; Chapter: 53 ; 777-787
2023-08-06
11 pages
Article/Chapter (Book)
Electronic Resource
English
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