Title
Influence of knots and density distribution on compressive strength of wooden foundation piles
Author
Pagella, G. (TU Delft Bio-based Structures & Materials)
Mirra, M. (TU Delft Bio-based Structures & Materials) 
Ravenshorst, G.J.P. (TU Delft Bio-based Structures & Materials; Technische Universität München)
van de Kuilen, J.W.G. (TU Delft Bio-based Structures & Materials; Technische Universität München)
Contributor
Zingoni, Alphose (editor)
Date
2023
Abstract
This work investigated the influence of knots on the compression strength of wooden foundation piles. The study involved 110 pile segments sawn from 18 spruce and 9 pine piles with a mean diameter of approximately 200 mm, and moisture contents above fiber saturation. The mechanical properties were determined performing both full-scale compression tests on pile segments, and small-scale experiments on discs sawn from selected segments, considering samples with and without knots. A knot ratio (KR) was defined analysing the knots layout of each wooden pile, and evaluating how the compressive strength was influenced by size, number and layout of knots. As final step, a prediction model was implemented based on the dry density and KR of wooden piles, to estimate the influence of knots on their compressive strength.
To reference this document use:
http://resolver.tudelft.nl/uuid:8d659404-fcb3-4d71-a8c0-6b61ccedc79d
DOI
https://doi.org/10.1201/9781003348443-277
Publisher
CRC Press / Balkema - Taylor & Francis Group
Embargo date
2023-07-01
ISBN
978-100334844-3
Source
Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
Event
8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022, 2022-09-05 → 2022-09-07, Cape Town, South Africa
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
conference paper
Rights
© 2023 G. Pagella, M. Mirra, G.J.P. Ravenshorst, J.W.G. van de Kuilen