Experimental Study of RC Hollow Beams with Embedded PVC Pipes

Jen Hua Ling*    -  University of Technology Sarawak, Malaysia
Joseph Toh Sheng Ngu  -  University of Technology Sarawak, Malaysia
Yong Tat Lim  -  University of Technology Sarawak, Malaysia
Wen Kam Leong  -  University of Technology Sarawak, Malaysia
How Teck Sia  -  University of Technology Sarawak, Malaysia

(*) Corresponding Author
This study investigated the behaviour of reinforced concrete (RC) hollow beams under incremental static loads. Polyvinyl Chloride (PVC) pipes were used to create longitudinal voids in hollow beams. The parameters studied included the size (25 mm, 50 mm and 75 mm diameter) and location (39 mm and 139 mm from beam soffit) of the PVC pipes in the beam. Nine specimens were tested under the four-point load test setup. The loads were progressively increased until the specimens failed. The specimens were analysed based on the failure modes, load-displacement responses and mechanical properties. The hollow beams gave a 2% to 36% lower strength than the solid beams. In terms of the strength per unit concrete, the hollow beams were less efficient than the solid beams. The efficiency ratio of hollow beams ranged from 0.67 to 1.0. For that, none of the proposed hollow beams was recommended.

Keywords: Hollow section; Longitudinal void; PVC pipe; Reinforced concrete beam

JACEE (Journal of Advanced Civil and Environmental Engineering)
is published by Fakultas Teknik Universitas Islam Sultan Agung, Indonesia, in collaboration with Fédération Internationale du Béton (fib).
Jl. Raya Kaligawe Km.4, PO BOX 1054/SM Semarang 50112
Website: https://ft.unissula.ac.id/
Email: jacee@unissula.ac.id

ISSN: 2599-3356 (Online)
DOI : 10.30659/jacee

This work is licensed under a Creative Commons Attribution 4.0 International License

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