Shear characteristics and design for high strength self consolidating concrete

Reduced material costs, coupled with labor savings inherent with its lightweight and comparatively simple installation, its high tensile strength, low relaxation, and immunity to corrosion, have made FRP an attractive alternative to traditional retrofitting techniques.Field applications over the last years have shown excellent performance and durability of FRP-retrofitted structures [24, 25].The effects of the new technique which depends on using intertwined roving NSM GFRP rods saturated with epoxy were compared with the other models.The new technique for shear strengthening increases the load capacity from 36% to 55% depending on the anchorage length of GFRP rods.This research has been conducted to assess and compare the ability and efficiency of traditional materials represented by steel bars, strips, or plates as well as advanced composite materials (ACMs) represented by GFRP and CFRP woven wraps for shear strengthening of RSCC deep beams with a central opening.The behavior and the results of the tested beams were presented, discussed, and analyzed in illustrated figures for the purpose of comparison.

Externally bonded layers (EBLs) and near-surface mounted reinforcement (NSMR) were used as two different techniques.

Thin deep girders often contain congested shear reinforcement within the web, the normal concrete often does not flow well when traveling through the web and does not completely fill the bottom bulb.


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