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Performance of glued-in rod timber joints under seawater and UV exposure cycles

Shekarchi, M ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1016/j.conbuildmat.2022.126418
  3. Publisher: Elsevier Ltd , 2022
  4. Abstract:
  5. Timber joints with glued-in rod connections provide an interesting technical solution for numerous structural applications, also under harsh environmental conditions; yet little research is available on this topic. This paper experimentally investigated the effect of exposure to seawater wetting/drying cycles and seawater wetting/drying plus UV radiation cycles on the pull-out performance of glued-in rod timber connections. Three rod diameters, three anchorage lengths, and four exposures were considered, leading to manufacturing and testing a total of 189 specimens. The quasi-static monotonic pull-out resistance of joints was a function of rod diameter and anchorage length as well as exposure, with larger numbers of exposure cycles changing the failure mode from ductile to brittle. A strength reduction of up to 53% was observed for timber joints subjected to 90 cycles of seawater wetting/drying plus UV radiation. Based on these results, an environmental condition reduction factor is proposed to account for the reduced connection resistance under harsh environmental conditions. © 2022 Elsevier Ltd
  6. Keywords:
  7. Bonded-in rods ; Mechanical properties ; Pull-out behavior ; UV radiation ; Wetting/drying cycle ; Anchorages (foundations) ; Glues ; Seawater ; Timber ; Ultraviolet radiation ; Wetting ; Bonded-in rod ; Environmental conditions ; Glued-in rods ; Performance ; Pull-out ; Seawater exposures ; Timber joints ; Wetting-drying ; Wetting/drying cycles ; Gluing
  8. Source: Construction and Building Materials ; Volume 322 , 2022 ; 09500618 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0950061822001118