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Rezistenta caracteristica la incovoiere a lemnului.
predimensionarea planseului?
P/180 +1-2cm = min 14cm
predimensionarea grinzii?
H_gr = 1/8 - 1/12 * L_gr (L_gr = deschiderea totala minus o latura de stalp)
specificati ipotezele de calcul care se folosesc in calculul sarpantei?
IP1 PERM+ZPD ; IP2 PERM+VANT+1/2ZPD ; IP3 PERM+UT (se poate lua impreuna sau separat)
ce reprezinta W?
coeficientul vantului
Enumerati de sus in jos toate componentele unei sarpante, avand pod circulabil si pod necirculabil?
Invelitoarea, sipci orizontale si verticale, astereala, capriorii, pane, popi, cosoroabe.
(+termoizolatie/hidroizolatie la circulabil)
Care sunt verificarile care se fac la calculul capriorilor, sipcilor, panelor,popilor?
incovoiere si sageata ( la pop - flambajul )
Cum se calculeaza lungimea unei pane?
t sau t-a ( a=L_contrafisa )
Cum se noteaza verificarea la sageata a elementelor sarpantei?
f
Enumerati coeficientii la care se imparte sageata instantanee pt fiecare grupa de incarcare?
PERM=1.35; UT=1.05; ZPD=1.5; VANT=1.05
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