2023年9月22日 · This study investigates the tensile strength of glass fibre reinforced polymer (GFRP) stirrups under seawater wet-dry cycles and seawater and tap water freeze–thaw cycles. In total, 220 stirrups in two different shapes, i.e. U and L shapes, and two different diameters, i.e. 6 mm and 8 mm were manufactured, conditioned, and tested under ...

The GFRP Reinforced Concrete Design Handbook provides several engineering design examples for various concrete members reinforced with GFRP bars including beams, one-way slabs, two-way slabs, and slender columns.

2022年9月1日 · To investigate the bond performance of glass FRP (GFRP) bars in concrete, lap splice tests were performed on 22 beam specimens. The test parameters included the spacing of stirrups along the bar splice length, bar diameter, loading type, and type of spliced bar.

2022年4月1日 · In this study, a new way to transversely reinforce square concrete columns using glass fiber reinforced polymer (GFRP) composite spiral stirrups composed of several outer rectangular GFRP stirrups and an inner spiral GFRP stirrup was proposed.

2024年12月12日 · Given the significant improvement in GFRP material properties, this study investigated the bond strength of sand-coated GFRP bars and proposed a new factor to include the effect of stirrup confinement on the bond-strength provisions.

2020年2月26日 · This paper summarizes the experimental results for full-sized edge-slab–column connections reinforced with GFRP bars and stirrups. The effectiveness of the GFRP stirrups and their extension from the column face on the performance of the tested connections are examined.

Based on experimental results, stirrup confinement clearly increased the bond strength, reduced longitudinal bar slippage, and increased splitting stress. The beams with a splice length of 60 db and stirrups on 100 mm (4 in.) centers achieved 57% higher capacity than those with the same lap-splice length but without stirrups.

2024年12月12日 · Out of 16 GFRP-RC beams, two beams were reinforced with two M16 (No. 5) continuous bars and six with varying lap-splice lengths [i.e., 40, 60, and 80 bar diameters (d b )] without confining stirrups.

Five L-shaped beams with different GFRP reinforcements were tested under significant torsion. The experimental results were presented and analyzed to explore: (1) the feasibility of using bonded...

1 天前 · The results show that stirrups make the initial cracking shear strength of a GFRP-reinforced concrete beam increase about 7.4% to 30.0%, and the maximum stirrup stress is much less than its ...