Experimental Study on the Dowel-Bearing Properties of Bamboo Scrimber

WU Hongsen; WANG Gang; MA Huaigang; ZHANG Ming; ZHAO Shixing; YU Zhixiang; CHEN Shuwei; CHEN Kemin; ZHANG Xiaolong; YANG Shuheng

doi:10.3724/j.gyjzG24102104

Volume 55 Issue 2

Feb. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(2): 31-43

WU Hongsen, WANG Gang, MA Huaigang, ZHANG Ming, ZHAO Shixing, YU Zhixiang, CHEN Shuwei, CHEN Kemin, ZHANG Xiaolong, YANG Shuheng. Experimental Study on the Dowel-Bearing Properties of Bamboo Scrimber[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 31-43. doi: 10.3724/j.gyjzG24102104

Citation:

WU Hongsen, WANG Gang, MA Huaigang, ZHANG Ming, ZHAO Shixing, YU Zhixiang, CHEN Shuwei, CHEN Kemin, ZHANG Xiaolong, YANG Shuheng. Experimental Study on the Dowel-Bearing Properties of Bamboo Scrimber[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 31-43. doi: 10.3724/j.gyjzG24102104

Citation:

WU Hongsen, WANG Gang, MA Huaigang, ZHANG Ming, ZHAO Shixing, YU Zhixiang, CHEN Shuwei, CHEN Kemin, ZHANG Xiaolong, YANG Shuheng. Experimental Study on the Dowel-Bearing Properties of Bamboo Scrimber[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 31-43. doi: 10.3724/j.gyjzG24102104

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Experimental Study on the Dowel-Bearing Properties of Bamboo Scrimber

doi: 10.3724/j.gyjzG24102104

1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2. Sichuan Provincial Architectural Design and Research Institute Co., Ltd., Chengdu 610095, China;
3. Hongya Bamboo Era Technology Co., Ltd., Meishan 620366, China;
4. SCEI Smart OPTOELECTRONIC Co., Ltd., Chengdu 610097, China

Received Date: 2024-10-21
Available Online: 2025-04-02

Abstract

Abstract

Based on existing experimental investigations of the dowel-bearing properties of two typical bamboo species bambusa eiemeiensis and phyllostachys edulis, supplemented with additional tests to verify influencing factors including bamboo species, load-to-fiber direction angle (LFD), density, and dowel diameter. A comparative analysis was conducted on the mechanical properties and applicability of calculation methods for both bamboo scrimber types. The results indicated: at LFD approaching 0°, bamboo scrimber primarily failed through direct shear failure of fiber-adhesive layers, transitioning to fiber bending-induced shear failure of adhesive layers when LFD approached 90°. Crack propagation intensified with increasing LFD, with phyllostachys edulis-based specimens exhibiting more pronounced failure. At LFD 45°, cracks demonstrated stronger penetration. Increased dowel diameter exacerbated bamboo scrimber failure, particularly in phyllostachys edulis-based materials. Low-density specimens were prone to premature failure. Bambusa emeiensis-based bamboo scrimber exhibited higher stiffness and strength than phyllostachys edulis-based counterparts. Both bamboo scrimbers showed decreasing dowel-bearing stiffness with increasing LFD, though bambusa emeiensis-based specimens exhibited stiffness recovery at LFD >75°. The strength reached its minimum at LFD 45° before rebounding. Increased dowel diameter enhanced stiffness but reduced strength in bambusa emeiensis-based materials, while phyllostachys edulis-based materials increased at first and then decreased in both stiffness and strength. Based on the above results, a calculation model for the dowel-bearing performance of both bamboo scrimber types with different LFDs and dowel diameters were established ultimately.
- bamboo scrimber,
- dowel-bearing strength,
- dowel-bearing stiffness,
- LFD,
- dowel diameters

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References(32)

References

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