2024年2月1日 · Acoustic emission is used to assess the damage of reinforced concrete beam strengthened by BFRP sheets. The influence of initial damage on mechanical response and AE signals during the four-point bending test is considered. The corresponding relation between crack propagation and AE signal characteristics is analyzed.

2021年1月1日 · For flexural strengthening, the rebars, sheets and plates are several of FRP reinforcing forms that utilized for bonding tension sides of timber, concrete and masonry. The load-bearing strength has been enhanced up to 40% by strengthening of flexural members [22].

2025年1月9日 · Research has demonstrated the effectiveness of BFRP in a variety of structural applications, such as reinforcing existing structures (e.g., concrete or masonry) using BFRP bars, grids, or sheets, and the development of novel design concepts that integrate BFRP products with existing structural systems.

2025年3月1日 · Using BFRP sheets to strengthen and repair low and medium-strength continuous beams resulted in increasing ultimate load capacity compared to untreated beams. Notably, all beams failed due to flexure, with some experiencing debonding of …

2023年10月11日 · The use of BFRP plates or sheets bonded to reinforcement with resin-bonded fibre-reinforced polymer has been recognized as an actual system associated with numerous sorts of concrete structures. Externally bonded BFRP may be utilized to recover the bending, shear, and torsion capacities of reinforced concrete beams.

2023年1月18日 · This paper reports on a series of four-point bending experiments to investigate the shear capacity of reinforced concrete (RC) beams strengthened with externally bonded basalt fiber–reinforced polymer (BFRP) sheets. The experimental results show that BFRP sheets can significantly increase RC beams’ shear capacity and ductility.

2017年11月28日 · In the present paper, the long-term durability of BFRP sheets and the epoxy resin matrix in a wet⁻dry cyclic environment containing chloride ions was studied. The specimens of the BFRP sheet and epoxy resin matrix were exposed to alternative conditions of 8-h immersion in 3.5% NaCl solution at 40 °C and 16-h drying at 25 °C and 60% relative ...

2024年7月2日 · In this study, the flexural behavior of RC beams strengthened with BFRP sheets using MWCNT-modified epoxy or neat epoxy was studied through four-point bending beam tests, including failure mode, load–deflection relationship, development process of crack width, energy absorption capacity, stiffness, ductility as well as the strain response of the...

In this chapter, results showed that: (1) the dynamic effective bond length decreased with the increase of strain rate, and increased with the increase of initial static loading proportion; (2) the dynamic maximum bond stress and dynamic ultimate load between BFRP sheets and concrete increased as the strain rate increased; (3) the dynamic ...

2023年10月1日 · Based on the experimental results, utilizing the aluminum alloy with BFRP sheets is efficiently improved the ultimate tensile strength of compared to aluminum alloy. In addition, the hybrid specimens contain two layers of BFRP sheets showed higher tensile strength than their counterparts with one BFRP sheet.