Shear capacity of sea sand concrete beams with polymer bars

Author:

Li Lijuan1ORCID,Zeng Lan2,Li Shuwang3,Liu Feng4

Affiliation:

1. Professor, School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong, China (corresponding author: )

2. PhD candidate, School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong, China

3. Master Degree candidate, School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong, China

4. Professor, School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong, China

Abstract

Basalt-fibre-reinforced polymer bars (BFRPBs) can replace steel bars in sea sand concrete (SSC) structures to prevent the corrosion of steel by chloride ions and thus sea sand can be directly added to concrete materials used in construction. Shear tests on 16 SSC beams reinforced with BFRPBs (ten beams with stirrups and six beams without stirrups) were carried out and their failure modes, shear capacities and influencing factors were analysed. The results revealed two primary failure modes for SSC beams with BFRPBs: bending failure and shear-compression failure. Based on the existing shear capacity formula, a new formula for calculating the shear capacity of SSC beams reinforced with BFRPBs is presented by incorporating the effect of the shear span ratio. The results calculated using the proposed formula were consistent with the experimental results.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

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