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Table 1 Strengthening parameters for specimens.

From: An Analytical Model for FRP Debonding in Strengthened RC Beams under Monotonic and Cyclic Loads

Specimens

Label

Loading history

Flexural strengthening with CFRP laminate

End anchorage

Shear strengthening with CFRP laminate/sheet

w f (mm)

t f (mm)

L f (mm)

w f (mm)

Type (laminate or sheet)

Control beams

CM1

Monotonic

–

–

–

–

–

–

CM2

Monotonic

–

–

–

–

–

–

CC

Cyclic

–

–

–

–

–

–

Strengthened beams

S1-group

S1 MN

Monotonic

50

1.2

1550

No

–

–

S1M

Monotonic

50

1.2

1550

Yes (EA)

–

–

S1C

Cyclic

50

1.2

1550

Yes (EA)

–

–

S2-group

S2M1

Monotonic

50

1.2

1550

Yes (EA)

50

Laminate (t = 1.2 mm)

S2M2

Monotonic

50

1.2

1550

Yes (EA)

200

Sheet

S2M3

Monotonic

50

1.2

1550

Yes (EA)

200

Wrapped Sheet

  1. S1 Beams strengthened in flexure only; S2 Beams strengthened in flexure and shear; EA End anchorage by wrapped CFRP sheet of 50 mm wide.