PSI - Issue 11

Antonio Bossio et al. / Procedia Structural Integrity 11 (2018) 394–401

398

5

Author nam

e / Structural Inte

grity Procedia 0

0 (2018) 000–00 0

200

200

a)

b)

100

100

0

0

-700 Bemding moment [kNm]

-700 Bending Moment [kNm]

1450

3600 Axial load [kN]

1450

360 Axial load [kN 0 ]

-100

-100

= 0 mm = 2 mm

x x

x= 0.2 x= 4 m

mm x= 1 mm m x=7 mm

x= x=

0 mm 4 mm

x= 1 mm x= 7 mm

x= 2 mm

-200

-200

(30x30) cm 2 an steel and by cons

(a) related to a se

ction of concrete of

d the radial loss o idering eccentric

f steel, (b) relate ity.

d to concrete cov

er spalling, radia

l loss

Fig. 5. P-M domains:

Fig. 6. Shear

: effects of the ra

dial loss of stirru

ps and concrete c

over spalling.

capacity domain

ACCIAIO Steel

HPC

CALCESTRUZZO Concrete

HPC

24 24

30 30

3

3 2 2 3

0 4 4

3 3

0

F ig. 7. Cross secti

al elements after

the retrofit with

High Performanc

e Concrete (HPC

).

on of the structur

Table 1. Main m Property Compress Bending

echanical prope

rties of High Per

formance Concre Value af

te (HPC) used to ter 28 days

retrofit corroded

specimens.

130 MPa 32 MPa 8.5 MPa 37 GPa 16 MPa ≥2 MPa

ive strength strength trength ive Elastic Modu ngth oncrete

Tension s Compress Shear stre Bond to c

lus