Determining the Distribution of the Dowel Bearing Strength of Bambusa bluemana Connections

• Main Authors: Base, Mikhaela P., Canapi, Sari Alyssa D., Tan, Maxene Gabrielle S.
• Format: text
• Published: Animo Repository 2023
• Subjects: Bambusa blumeana; bamboo connections; dowel bearing strength; ASTM D5764
• Online Access: https://animorepository.dlsu.edu.ph/conf_shsrescon/2023/paper_see/5; https://animorepository.dlsu.edu.ph/context/conf_shsrescon/article/1749/viewcontent/_EDITED__PP_SEE_Base_Canapi_Tan___Maxene_Gabrielle_Tan__2_.pdf
• Institution: De La Salle University

Bamboo has long been utilized as a structural element, especially in low-rise structures. However, the dowel bearing strength that is used to connect structural bamboo elements has not been fully established. Studying bamboo connections is significant since it affects the structure's stability. In this study, the dowel bearing strength of a proposed bamboo connection is established through experimental tests (ASTM D5764). The species used in the tests is Bambusa blumeana with the following node presence: none, bottom, middle, and top. The dowel (rebar) diameters used are 3/8” and 1/2", which is where the compressive load is applied until ultimate failure is reached. The results show that a top node placement with a 1/2” dowel (rebar) diameter has the highest failure load of 25.1 kN. Furthermore, the maximum loads can be modeled as a lognormal distribution. The findings contribute to a better understanding of the dowel bearing strength of bamboo connections considering different nodal positions and dowel diameters. The paper also proposes a lognormal distribution of the maximum strength.