Behavior and Analysis of Self-Consolidated Reinforced Concrete Deep Beams Strengthened in Shear
Table 4
Experimental test program of strengthened RSCC deep beams [31].
Group
Specimen code
Dimensions of applied material (mm)
Shear strengthening method
BR
—
Reference RSCC beam without openings was loaded up to failure, Pf without strengthening.
Reference beams
BOR
—
Reference beam with a central opening was loaded up to failure, Pf without strengthening (Figure 1).
BOVSB
Steel bars, , Anchorage = 20 mm
Strengthened by NSM vertical steel bars in both sides of the beam (Figure 2(a)).
BOVSP=
Steel plates,
Strengthened by NSM vertical steel strips parallel to the surface in both sides of the beam (Figure 2(a)).
Steel plates
Strengthened by NSM vertical steel strips transverse to the surface in both sides of the beam (Figure 2(a)).
Group (A) strengthening by steel
Steel plates
Strengthened by NSM vertical steel strips transverse to the surface in both sides of the beam (Figure 2(a)).
BOISB
Steel bars ,
Strengthened by NSM inclined steel bars in both sides of the beam (Figure 2(b)).
BOSPL
Steel plates
Strengthened by externally bonded steel plates by epoxy in both sides of the beam (Figure 3(a)).
BOVG1
GFRP rods, , Anchorage = 20
Strengthened by NSM vertical intertwined rods manufactured from GFRP roving and epoxy in both sides of the beam (Figure 2(a)) with an anchorage length equals 20 mm through the web.
BOVG2
GFRP rods, , Anchorage = 100
Strengthened by NSM vertical intertwined rods manufactured from GFRP roving and epoxy in both sides of the beam (Figure 2(a)) with an anchorage length equals 100 mm through the web.
Group (B) strengthened by GFRP
BOIG1
GFRP rods, , Anchorage = 20
Strengthened by NSM inclined intertwined rods manufactured from GFRP roving and epoxy in both sides of the beam (Figure 2(b)) with anchorage length equals 20 mm through the web.
BOIG2
GFRP rods, , Anchorage = 100
Strengthened by NSM inclined intertwined rods manufactured from GFRP roving and epoxy in both sides of the beam (Figure 2(b)) with anchorage length equals 100 mm through the web.
BOGW
GFRP wraps,
Strengthened with one layer of externally bonded GFRP woven wraps by epoxy in both sides of the beam (Figure 3(b)).
Group (C) Strengthened by CFRP
BOVC=
CFRP plates
Strengthened by NSM vertical CFRP strips parallel to the surface in both sides of the beam (Figure 2(a)).
CFRP plates
Strengthened by NSM vertical CFRP strips transverse to the surface in both sides of the beam (Figure 2(a)).
BOCW
CFRP wraps
Strengthened by one layer of externally bonded CFRP wraps by epoxy in both sides of the beam (Figure 3(c)).