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Barre ad aderenza

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Coefficiente per calcestruzzo<br />

Factor for concrete strenght<br />

C20/25 C25/30 C30/37 C40/50<br />

0,83 0,92 1,0 1,15<br />

La lunghezza dell’ancoraggio lb può essere calcolata da: l b<br />

= (Ø x f y,d<br />

) / (4 x f b,d<br />

x f sc<br />

)<br />

f y,d<br />

= valore di progetto della tensione di snervamento con barra installata.<br />

The basic anchorage length lb can be calculated from: l b<br />

= (Ø x f y,d<br />

) / (4 x f b,d<br />

x f sc<br />

)<br />

with f y,d<br />

design yield strength of post installed rebar.<br />

Pag 4

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