Table 17 Displacement ductility capacity—DDC for post-installed and cast-in-place anchored bars.

From: Bond of ribbed and threaded steel reinforcement bars post-installed in concrete considering bonded length and adhesive type

Lb = 5 db

Lb = 10 db

Lb = 15 db

Specimen

su (mm)

sy (mm)

DDC

Gain in DDC (%)

Specimen

su (mm)

sy (mm)

DDC

Gain in DDC (%)

Specimen

su (mm)

sy (mm)

DDC

Gain in DDC (%)

RN5-0

3.5

2.7

1.3

0.0

RN10-0

2.5

2.0

1.2

0.0

RN15-0

5.3

2.1

2.5

0.0

RS5-12

2.0

0.0

–

–

RS10-12

0.7

0.7

1.0

− 17.7

RS15-12

1.3

0.8

1.6

− 34.8

RS5-16

0.5

0.3

1.5

17.5

RS10-16

1.1

0.1

16.0

1180

RS15-16

0.3

0.1

2.8

12.3

RS5-18

2.7

1.4

1.9

49.5

RS10-18

2.6

0.3

7.7

518.2

RS15-18

0.5

0.1

8.3

232.0

RK5-16

1.5

0.6

2.4

84.6

RK10-16

2.5

1.4

1.8

43.9

RK15-16

2.9

0.9

3.3

30.4

RK5-18

2.9

1.4

2.0

57.8

RK10-18

1.9

1.4

1.3

3.5

RK15-18

1.9

1.4

1.3

− 47.4

TS5-16

2.0

0.0

–

–

TS10-16

1.0

0.9

1.1

-14.7

TS15-16

1.6

0.1

16.0

537.5

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