EDS 2015 Pontes 9 Semestre
Por: Caê Garcia • 30/10/2015 • Resenha • 7.124 Palavras (29 Páginas) • 4.156 Visualizações
EDS 2015 Pontes
Exercício 1=( D )
∑ fy=-720+T*sen33=0
T*sen33=720
T=720/sen33
T=1322 Tf/m
Exercício 2=( A )
qc =yc*S --- Formula ∑MS =0
qc =25*(46*4*1,6) 3680*20-3200*10-M=0
qc=7360 KN M=72600-32000
M=41600KN/M
PILAR=7360/2
PILAR=3680KN
Exercício 3=( C ) 1280
qc =yc*S --- Formula
qc =2,5*(32*1*3 )
qc=240 KN
∑ FY=0 ∑ MB=0
RA+RB-40-240=0 RA*32-40*16-240*16=0
RA+RB=280 RA=4480/32
RB=280-140 RA=140 Tf
RB=140 Tf
∑MS =0 140*16-120*8-M=0
M=2240-960
M=1280KN
Exercício 4=( E )- 5150
qc =yc*S --- Formula
qc =2,5*(44*2*4 )
qc=880 Tf
∑ FY=0 ∑ MB=0
RA+RB-10-20-880=0 RA*44-10*24-20*20-880*22=0
RA+RB=930 RA=20000/44
RB=930-457,55 RA=454,55 Tf
RB=475,45 Tf
∑MS =0 454,55*22-440*11-10*2-M=0
M=10000-4840-20
M=5150 tf/M
Exercício 5=( B ) 1521
∑ FY=0 ∑ MB=0
RA+RB-120-2250-300=0 RA*30-120*18-2250*15-300*12=0
RA+RB=2670 RA=39510/30
RB=2670-1317 RA=1317 KN
RB=1353 KN
∑FV =0 3542-1560-371-V=0
V=1521 KN
Exercício 6=( C ) 420
∑ FY=0 ∑ MB=0
RA+RB-15-15-15=0 RA*40-15*22-15*20-15*18=0
RA+RB=45 RA=900/40
RB=45-22,5 RA=22,5 Tf
RB=22,5 Tf
∑MS =0 22,5*20-15*2-M=0
M=450-30
M=420 tf/M
Exercício 7=( A ) 1250
qc =yc*S --- Formula
qc =25*(24*2*2 )
qc=2400 KN
∑ FY=0
RA+RB-12-12-12-12-12+2400 =0-240=0
RA+RB=60+2400
RB=2460-1210
RB=1250 KN
∑ MB=0 RA*24-12*16-12*14-2400*12-12*12-12*10-12*8=0
RA=29040/24
RA=1210 KN
Exercício 8=( D ) 1920
∑ FY=0 ∑ MB=0
RA+RB-800=0 RA*20-800*10=0
RA+RB=800 RA=8000/20
RB=800-400 RA=400 KN
RB=400 KN
∑MS =0 400*8-320*4-M=0
M=3200-1280
M=1920 KN/M
Exercício 9=( B ) 414,86
∑ FY=0 ∑ MB=0
RA+RB-12-40=0 RA*35-12*26-40*20=0
RA+RB=52 RA=1112/35
RB=52-31,78 RA=31,78Tf
RB=20,5 Tf
∑MS =0 32*15-12*6-M=0
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