Experimental and Numerical Investigation of Shear Behavior of RC Beams Strengthened by Ultra-High Performance Concrete

International Journal of Concrete Structures and Materials

Table 1 Details of the beam specimens.

Group	Beam ID	Beam description	Dimensions b × h × L (mm)	a/d ratio	Shear span (mm)
First	CT-1.0	Control beam	140 × 230 × 1120	1.0	200
	SB-2SJ-1.0^a	Beam strengthened by two longitudinal vertical faces	200 × 230 × 1120	1.0	200
	SB-3SJ-1.0	Beam strengthened by jacketing two longitudinal vertical faces and the bottom face	200 × 260 × 1120	1.0	200
Second	CT-1.5	Control beam	140 × 230 × 1120	1.5	280
	SB-2SJ-1.5	Beam strengthened by two longitudinal vertical faces	200 × 230 × 1120	1.5	280
	SB-3SJ-1.5	Beam strengthened by jacketing two longitudinal vertical faces and the bottom face	200 × 260 × 1120	1.5	280
Third	CT-2.0	Control beam	140 × 230 × 1120	2.0	384
	SB-2SJ-2.0	Beam strengthened by two longitudinal vertical faces	200 × 230 × 1120	2.0	384
	SB-3SJ-2.0	Beam strengthened by jacketing two longitudinal vertical faces and the bottom face	200 × 260 × 1120	2.0	384

^aBeam strengthened by preparing the surfaces using sandblasting technique (SB) and applying UHPC to obtain two-side layers (2SJ), tested maintaining a shear-span to depth ratio (a/d) of 1.0.