Figure 1. Sample cross section of CLT (left) and Glulam (right). The laminates of CLT vary in direction between each layer while the laminates of Glulam are uniformly in one direction.
Figure 2. Massive timber charring behaviour and response to fire exposure.
Figure 3. Canadian timber adhesives standards summary (see Quiquero and Gales, 2017).
Figure 4. Shear plane shown on unheated and heated samples (left) and shear apparatus test setup (right).
Figure 5. Test setup of the heating portion of the experiment for the moment region (left) and the shear region (right).
Figure 6. Mechanical loading of simply supported beam with four point loads.
Figure 7. Total char depths measured on samples versus the heating duration.
Figure 8. Typical failure mode of shear along an adhesive bond line.
Figure 9. Comparison of remaining shear capacity versus area for all samples.
Figure 10. Remaining shear capacity of samples versus different predictions of actual remaining shear area at full adhesive strength, compared with the measured char depths and the standard predicted sacrificial char method.
Figure 11. Load versus slip behaviour for heated for different durations under a 50 kW/m2 incident heat flux.
Figure 12. Failure mode of a Glulam undamaged control beam, whose failure originated along the adhesive bond lines within the moment region.
Figure 13. Failure load of all beams damaged in the moment region, shear region, as well as the control beams.
Figure 14. Load versus downward displacement beams damaged in the moment region (left) and shear region (right).
Table 1. Summary of the number of samples tested for each adhesive type, heat exposure and heating duration
참고문헌
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