Experimental Study on the Dowel-Bearing Strength of Bambusa blumeana Bamboo Used for SustainableHousing Construction

Authors

Cres Dan O. Bangoy, Jr.

Jedelle Y. Falcon

Hannah Amyrose F. Lorenzo

Steven Royce A. Zeng

Lessandro Estelito O. Garciano

Carlo Joseph D. Cacanando

Abstract

This study addresses the critical issue of dowel-bearing strength in Bambusa blumeana,
a key sustainable construction material crucial for climate change mitigation. Given the lack of
bamboo connection standards, this research focuses on determining the dowel-bearing strength of
Bambusa blumeana, emphasizes factors such as dowel diameter, node placements, and the physical
properties of bamboo. A predictive equation is derived, enhancing the practicality of bamboo in
structural design. The results underscore a notable correlation between dowel diameter and characteristic strength, with implications for engineering practices. Node placements significantly affect
dowel-bearing capacity, while bamboo’s physical attributes, including thickness, culm diameter, and
moisture content, exhibit modest correlations with strength. The derived equation aims to assist
in structural design, mitigating splitting and bearing failures in bamboo structures. This research
establishes a foundation for optimizing the use of Bambusa blumeana in sustainable construction,
advancing the understanding of its dowel-bearing strength for improved sustainability and resilience
in the construction industry. Future research suggestions include exploring bamboo–mortar composites, additional node placements, and employing more comprehensive empirical equations and
curve-fitting techniques. The study advocates for further investigations with more diverse and
larger bamboo samples to bolster robustness. Additionally, delving into bamboo ductility may offer
valuable insights.

Material Characterization

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