Abstract
Fire resistance and thermal stability are among the most important criteria for engineered wood product applications in mass-timber buildings. This project investigated the shear strength of mass timber adhesively bonded joints at high temperatures. Shear tests were conduct on specimens made of Douglas-Fir Glued-laminated Timber and a steel plate glued in with a one component polyurethane adhesive. The results indicate that the shear strength of the adhesive was affected by temperature. Between 20 °C and 75 °C, the shear strength of the joints decreased with increasing temperature. Above 75 °C, the strength of the adhesive became constant at less than half that at 20 °C. Therefore, it is recommended that if the polyurethane adhesive is used for glulam-steel plate structures above 75 °C, the design strength should be only about 40% of the design strength at room temperature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
