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

600
400
200
Force [kN]
0
B14HR8S - f c = 28 MPa
Bars φ14 HR Mesh 8mm
f y = 540MPa f y = 488MPa
f t = 635MPa f t = 570MPa
f t /f y = 1.18 f t /f y = 1.17
ε u = 11.2% ε u = 10.3%
600
400
200
Force [kN]
0
B14HR8U - f c = 28 MPa
Bars φ14 HR Mesh 8mm
f y = 540MPa f y = 488MPa
f t = 635MPa f t = 570MPa
f t /f y = 1.18 f t /f y = 1.17
ε u = 11.2% ε u = 10.3%
-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
B14CD8S – f c = 28 MPa
Bars φ14 CD Mesh 8mm
f y = 540MPa f y = 622MPa
f t = 635MPa f t = 642MPa
f t /f y = 1.18 f t /f y = 1.03
ε u = 11.2% ε u = 4.7%
600
400
200
Force [kN]
0
B14CD8U - f c = 28 MPa
Bars φ14 CD Mesh 8mm
f y = 540MPa f y = 622MPa
f t = 635MPa f t = 642MPa
f t /f y = 1.18 f t /f y = 1.03
ε u = 11.2% ε u = 4.7%
-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. 13
a) b)
c) d)
Fig. 14
Riva, Franchi