evoluzione degli acciai da cemento armato nuovi prodotti ... - Sismic

600
400
200
Force [kN]
0
B14HR8 –1 - f c = 40 MPa
Bars φ14 HR Mesh 8mm
f y = 540MPa f y = 435MPa
f t = 635MPa f t = 540MPa
f t/f y = 1.18 f t/f y = 1.24
ε u = 11.2% ε u = 8.5%
600
400
200
Force [kN]
0
B14CD8 –1 - f c = 40 MPa
Bars φ14 CD Mesh 8mm
f y = 540MPa f y = 540MPa
f t = 635MPa f t = 605MPa
f t /f y = 1.18 f t /f y = 1.12
ε u = 11.2% ε u = 4.1%
-200
-200
-400
-400
-600
-80 -60 -40 -20 0 20 40 60 80
Displacement [mm]
-600
-80 -60 -40 -20 0 20 40 60 80
Displacement [mm]
600
400
200
Force [kN]
0
B14HR8 –2 - f c = 40 MPa
Bars φ14 HR Mesh 8mm
f y = 540MPa f y = 435MPa
f t = 635MPa f t = 540MPa
f t/f y = 1.18 f t/f y = 1.24
ε u = 11.2% ε u = 8.5%
600
400
200
Force [kN]
0
B14CD8 –2 - f c = 40 MPa
Bars φ14 CD Mesh 8mm
f y = 540MPa f y = 540MPa
f t = 635MPa f t = 605MPa
f t /f y = 1.18 f t /f y = 1.12
ε u = 11.2% ε u = 4.1%
-200
-200
-400
-400
-600
-80 -60 -40 -20 0 20 40 60 80
Displacement [mm]
-600
-80 -60 -40 -20 0 20 40 60 80
Displacement [mm]
Fig. 8
a) b)
c) d)
Fig. 9
Riva, Franchi