A novel real-time radar NDE technique for the in-depth inspection of glass fiber reinforced polymer (GFRP)retrofitted concrete columns is proposed. In this technique, continuous wave radar signals are transmitted in the far-field region (distant inspection), and reflected signals are collected by the same signal transmitter. Collected radar signals are processed by tomographic reconstruction me...

Abstract Anchor heads could efficiently address the bond weakness between Fibre-Reinforced Polymer bars and concrete. This experimental study enhanced behaviour GFRP concrete using three innovative anchorage systems made from glass fibre cloth epoxy resin. A direct pullout test was used to bond-slip performance bar Test variables were diameter (3 diameters), compressive strength (20.4 40.2 MPa)...

The service environment of civil air defense engineering structures is relatively harsh, and the corrosion steel bars main reason for reducing durability concrete in engineering. A hybrid FRP–steel-reinforced (hybrid-RC) structure has excellent durability. Therefore, it a good choice to apply hybrid-RC structures. In order study blast resistance structures, close contact experiments were carrie...

Abstract In reinforced concrete (RC) structures, corbels that extend from the faces of columns are commonly employed to support primary beams and girders. Frequently, use is limited cantilevers with a shear span-depth ratio often less than 2. Because this relatively low ratio, corbel strength normally dominated by shear, which comparable deep beams. However, owing some reasons (e.g., design and...

This paper numerically investigates the flexural response of concrete beams reinforced with steel and four types Fiber-Reinforced Polymers (FRP), i.e., Carbon FRP (CFRP), Glass (GFRP), Aramid (AFRP), Basalt (BFRP). The responses forty two boundary conditions (simply supported over-hanging beams) were determined using ABAQUS. Subsequently, finite element models validated experimental results. Ev...

Due to the assumption of uniform bond stress, development length fibre reinforced polymer (FRP) bars by design standards can be unnecessarily long and difficult provide in practice. Hence, stress distribution required a glass (GFRP) rebar is investigated. Four beam-bond specimens, two following RILEM specifications based on procedure ACI are tested evaluate effect test method strength. Ten pull...

Fiber-reinforced composite (FRP) materials have gained an increasing success, mostly for strengthening, retrofitting and repair of existing historic masonry structures and may cause a significant enhancement of the mechanical properties of the reinforced members. This article summarizes the results of previous experimental activities aimed at investigating the effectiveness of GFRP (Glass Fiber...