Experimental investigation of mechanically laminated straight or curved-and-tapered bamboo-concrete T-beams

Authors

• Yu Deng, School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006. China
• Yuxi Hao, School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006. China
• Ahmed Mohamed, School of Computing, Engineering and the Built Environment, Edinburgh Napier University, 10 Colinton Road, Edinburgh EH10 5DT, Scotland, UK
• Ho Fai Simon Wong, Department of Construction, Environment and Engineering, Technological and Higher Education Institute of Hong KongFollow
• Yunchao Tang, Guangxi University, Nanning, China
• Terry Y.P. Yuen, Department of Civil Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
• Piti Sukontasukkul, Construction and Building Materials Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
• Minhe Shen, School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006, China
• Nirodha Fernando, School of Computing, Engineering and the Built Environment, Edinburgh Napier University, 10 Colinton Road, Edinburgh EH10 5DT, Scotland, UK
• Ruth Saint, School of Computing, Engineering and the Built Environment, Edinburgh Napier University, 10 Colinton Road, Edinburgh EH10 5DT, Scotland, UK
• Hexin Zhang, School of Computing, Engineering and the Built Environment, Edinburgh Napier University, 10 Colinton Road, Edinburgh, Scotland EH10 5DT, UK

Staff Page Link

Ir Dr Simon, Ho Fai WONG

Document Type

Journal Article

Publication Date

2023

Keywords

Curved beamLaminated bamboo-concreteComposite structureBamboo structureInterface slip

DOI

https://doi.org/10.1016/j.engstruct.2023.115896

Abstract

This study echoes the rising demand for bio-based material in concrete composite structures in the race to accelerate carbon neutrality in construction. Noticing that most previous studies are focused on straight timber or engineered bamboo-to-concrete composite beams, this study developed straight or curved-and-tapered mechanically laminated bamboo-concrete (LBC) T-beams. Six layers of 26 mm thick laminated bamboo panels were glue laminated together to form the bamboo beams. The curved bamboo beams have three different rises of arch: 50 mm, 100 mm and 150 mm. All specimen beams were tested by four-point bending tests to evaluate their structural performances of the curved and straight LBC T-beams. To monitor the flange-to-web interface shear transfer, a novel interface shear slip calibration method that captures the longitudinal after-slip strain redistribution was developed and validated by strain gauge measurements. This study also highlights the interlayer shear bonding strength of laminated bamboo as the thresholding parameter that determines the composite beams' overall flexural strength, evidenced by detailed failure mode analysis. The proposed interface shear slip calibration method can be extended to the other types of shear connectors such as screws, nails, shear plates and notched connections.

Source Publication

Engineering Structures

Volume Number

283

Recommended Citation

Deng, Y.,Hao, Y.,Mohamed, A.,Wong, H.,Tang, Y.,Yuen, T.,Sukontasukkul, P.,Shen, M.,Fernando, N.,Saint, R.,& Zhang, H. (2023). Experimental investigation of mechanically laminated straight or curved-and-tapered bamboo-concrete T-beams. Engineering Structures, 283. http://dx.doi.org/https://doi.org/10.1016/j.engstruct.2023.115896