Upload
xibuaumbala
View
225
Download
0
Embed Size (px)
DESCRIPTION
cccc
Citation preview
Ghi chó: b¶ng mµu lµ sè liÖu kh«ng ®æinh÷ng sè cã mµu lµ sè liÖu chän
§Ò bµi TÝnh to¸n khung ngang nhµ c«ng mét tÇng hai nhÞp.
NhÞp cÇu trôc
16500 16500 6000 6350
Tõ sè liÖu ®Ò bµi cã:
Sè liÖu vÒ dÇm cÇu trôc
15-30 12-30 1000 200 570
chØ tiªu cÇu trôc
B K30/5 16.5 6300 5100 2750
chän cÊu t¹o cöa m¸i
chän Hr (mm) a1 (mm) a2 (mm) a3 (mm)150 150 500 800
KÕt cÊu m¸i dÇm cÇu trôc
B íca(mm)
C.tr×nhR(mm)Lk1(mm) Lk2(mm)
Søc trôc (Q, t)
NhÞp nhµ (L,
m)
Hc (mm)
b (mm)
bc (mm)
Søc trôc (Q, t)
NhÞp CT Lk (m)
kÝch th íc cÇu trôc (mm)
Hct
1. Lùa chän kÝch th íc cña c¸c cÊu kiÖn
NhÞp nhµ L (mm) hgd (mm) hdd (mm) Hc (mm) b (mm)
1- hai l í p g ¹ c h l ¸ nem dµy 5c m
2- l í p bª t « ng nhÑ c ¸ c h nhiÖt dµy 12c m
3- l í p bª t « ng c hè ng t hÊm dµy 4c m
4- panen s ¦ ê n 6x1.5m, c ao 30c m
18000 2200 1300 1000 200
chiÒu cao nhµcao tr×nh ®Ønh m¸i
V (mm) D (mm) M1(mm) M2 (mm) 5200 9250 11960 14960 10550
KiÓm traa4 biªn a4 gi÷a
300 150 25.3125 21.375tho¶ m·n tho¶ m·n tho¶ m·n
cao tr×nh vai cét
cao tr×nh ®Ønh cét
Ht êng mm
lb trªn lb d íi
lµ sè liÖu chän
TÝnh to¸n khung ngang nhµ c«ng mét tÇng hai nhÞp.
Søc trôc
30/5 30/5 mÒm trung b×nh Phó yªn
120 4.2
chØ tiªu cÇu trôc
xe con G toµn bé300 28 8.2 12 42.5
chiÒu dµy m¸i t (mm)chiÒu cao cöa m¸i hcm(mm) l510 3000 750
dÇm cÇu trôcTL 1 dÇm (t)
MãccÈu
ChÕ ®élµm viÖc
§Þa ®iÓm x©y dùngQ1(T) Q2(T)
hc (mm)
träng l îng mét dÇm (t)
kÝch th íc cÇu trôc (mm)¸p lùc b¸nh xe
lªn ray (t)Träng l îng (t)
B1 Pcmax Pc
min
bc (mm) hc (mm)
570 120 4.2
11060
bÒ réng cét
Ht (mm) Hd (mm) b (mm)4050 5700 400 400 600
kÝch th íc cétchiÒu dµi cét trªn
chiÒu dµi cét d íi
chiÒu cao td cét biªn trªn
chiÒu cao td cét biªn d íi
htb (mm) hdb (mm)
Lcm (mm)6000
lv (mm) hv (mm)600 800 600 600
kÝch th íc vai cétchiÒu cao
td cét gi÷a trªn
chiÒu cao td cét
gi÷a d íi®é v ¬n
chiÒu cao mÐp
ngoµihtg (mm) hdg (mm)
cÊu t¹o m¸i
TT C¸c líp m¸i ChiÒu dÇy (m)
1 Hai líp g¹ch l¸ nem kÓ c¶ v÷a lãt 0.05
2 Líp bª t«ng nhÑ c¸ch nhiÖt 0.12
3 Líp bª t«ng chèng thÊm 0.04
4 0.3
5 Tæng céng
tÜnh t¶i TL khung CM
G1 (kG) n=1,1 G2 (kG) n=1,17260 1650
ho¹t t¶i Ho¹t t¶i m¸i n
75 1.3Giã
10550 n Wo (kG/m2) Ce19250 1.2 125 -0.1
Panen s ên, kÝch th íc 3x6m,
(nh÷ng sè cã mµu xanh lµ sè liÖu nhËp vµo, ch a kÓ dÕn hÖ sè v ît t¶i. Sè mµu ®á lµ kÕt qu¶ cña 1 phÐp tÝnh ®¬n gi¶n )Träng l îng cña KC m¸i
pmtc (kG/m2)
1800 90 1.3 117
1200 144 1.3 187.2
2500 100 1.1 110
145 1.1 159.5
Tæng céng 479 573.7
TL 1m2 c¸c líp m¸i NhÞp nhµ TL khung cöa kÝnhTL rayg (kG) a (m) L (m) gk (kG/m) n=1,2 gr (kG/m)
573.7 6 18 600 150
CÇu trôcy1 y2 y3 n søc trôc Q (
1 0.15 0.8 1.1 30000Giã
Ce1' Ce2 C hót C ®Èy k cét-0.308 -0.4 -0.6 0.8 0.982
khèi l îng riªng (kG/m3)
Ptc (kG/m2)
HÖ sè v ît t¶i
Ptc (kG/m2)
(nh÷ng sè cã mµu xanh lµ sè liÖu nhËp vµo, ch a kÓ dÕn hÖ sè v ît t¶i. Sè mµu ®á lµ kÕt qu¶ cña 1 phÐp tÝnh ®¬n gi¶n )b íc cét
tÜnh t¶i
Ko cã CM cã CM TT dÇm CT TT cét biªnGm (kG) Gm (kG) Gd (kG) Gct (kG)
34610 39035 5610 1782
ho¹t t¶iM¸i CÇu trôc (kG)Pm (kG) Dmax Dmin Tmax
5265 60060 17589 2252.25
TL bt dÇmGc (kG)
4200
CÇu trôcT (kG)
2100Giã
k tb1.026
KÕt qu¶ tÝnh to¸n
(nh÷ng sè cã mµu xanh lµ sè liÖu nhËp vµo, ch a kÓ dÕn hÖ sè v ît t¶i. Sè mµu ®á lµ kÕt qu¶ cña 1 phÐp tÝnh ®¬n gi¶n )
TT cét gi÷aGcd (kG) Gct (kG) Gcd (kG)
4356 2673 6204
giã (kG)Ph Pd Sh Sd
530.28 707.04 2784.236 2881.008
Ho¹t t¶I mai Ho¹t t¶i cÇu trôc
TÜnh t¶i Tr¸i Ph¶i
1 2 3 4 5 6 7 8 9 10
I - I M -32.09 -4.40 0.00 0.00N 641.75 89.92 0.00 0.00
II - II M 9.91 2.68 -100.62 19.24N 658.03 89.92 0.00 0.00
III - III M -30.64 -6.11 145.57 19.24N 714.13 89.92 546.98 0.00
IV - IV M 52.77 7.94 -54.41 24.49N 766.51 89.92 546.98 0Q 11.35 1.91 -27.20 5.95
I - I M 7.71 -13.16 13.16 0 0 0 0N 1334.90 87.75 87.75 0 0 0 0
II - II M 3.46 -5.92 5.92 173.90 20.46 -173.90 20.46N 1359.32 87.75 87.75 0 0 0 0
III - III M 3.46 -5.92 5.92 -236.34 20.46 236.34 20.46N 1471.52 87.75 87.75 546.98 0 546.98 0
IV - IVM -4.69 8.53 -8.53 109.11 20.85 -109.11 20.85N 1548.08 87.75 87.75 546.98 0 546.98 0Q -1.15 1.97 -1.97 47.00 5.62 -47.00 5.62
Tªn cét
TiÕt diÖn
Néi lùc
Dmax tr¸i
Tmax tr¸i
Dmax ph¶i
Tmax ph¶i
Cét A
Cét B
Giã Tæ hîp c¬ b¶n 1 Tæ hîp c¬ b¶n 2
11 12 13 14 15 16 17 184,5 4,6 4,6 4,5 4,6 4,6
0.00 0.00 -32.09 -36.49 -36.49 -32.09 -36.05 -36.050.00 0.00 641.75 731.67 731.67 641.75 722.68 722.68
4,11 4,9,10 4,6 4,6,11 4,9,10,12 4,6,9,10,12
5.96 -26.86 15.87 -91.97 12.59 17.69 -103.54 -103.540.00 0.00 658.03 658.03 747.95 738.96 738.96 738.96
4,9,10 4,12 4,9,10 4,9,10,11 4,6,12 4,6,9,10,11
5.96 -26.86 109.45 -57.50 109.45 100.80 -60.31 95.300.00 0.00 1179.06 714.13 1179.06 1132.57 795.06 1213.50
4,11 4,12 4,9,10 4,6,11 4,9,10,12 4,6,9,10,11
239.91 -191.48 292.68 -138.71 27.34 275.84 -179.92 252.95
0.00 0.00 766.51 766.51 1231.44 847.44 1184.95 1265.8851.93 -32.47 63.28 -21.12 -6.71 59.81 -34.13 43.55
4,6 4,5 4,5,6 4,6 4,5 4,5,6
0 0 20.87 -5.45 7.71 19.55 -4.13 7.710 0 1422.65 1422.65 1510.40 1413.88 1413.88 1492.85
4,7,8 4,9,10 4,5,6 4,6,7,8,11 4,5,9,10,12 4,5,6,7,8,11
117.33 -117.33 197.82 -190.90 3.46 263.07 -256.15 257.740 0 1359.32 1359.32 1534.82 1438.29 1438.29 1517.27
4,9,10 4,7,8 4,7,8,9,10 4,6,9,10,11 4,5,7,8,12 4,5,6,7,8,9,10,11
117.33 -117.33 221.74 -214.82 32.10 310.84 -303.92 134.840 0 1936.45 1936.45 2237.29 1968.93 1968.93 2318.66
4,11 4,12 4,7,8,9,10 4,5,7,8,11 4,6,9,10,12 4,5,6,7,8,9,10,12
350.40 -350.40 345.71 -355.09 346.16 410.09 -427.15 -346.320 0 1548.08 1548.08 1930.97 1966.52 2045.49 2395.22
31.71 -31.71 30.56 -32.86 61.81 67.64 -71.72 -36.77
0.22331533 -0.22937 0.179266 0.20854 -0.2088 -0.1445881
Tr¸i sang
Ph¶i sang
Mmax
Nt
Mmin
Nt
Nmax
Mt
Mmax
Nt
Mmin
Nt
Nmax
Mt
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét trªn cét A
M (kNm) N (kN)
1 II-16 17.69 738.96 24 132 II-17 -103.54 738.96 140 133 II-15 12.59 747.95 17 13
M (kNm) N (kN)
1 IV-13 292.68 766.51 382 202 IV-14 -179.92 1184.95 152 203 IV-18 252.95 1265.88 200 204 III-13 109.45 1179.06 0.09
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét trªn cét B
M (kNm) N (kN)
1 II-16 263.07 1438.29 183 202 II-17 -256.15 1438.29 178 203 II-18 257.74 1517.27 170 20
M (kNm) N (kN)
1 IV-14 -355.09 1548.08 229 272 IV-17 -427.15 2045.49 209 273 IV-18 -346.32 2395.22 145 27
KÝ hiÖu cÆp néi lùc
KÝ hiÖu ë b¶ng tæ
hîp
e1=M/N (mm)
ea (mm)
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét d íi cét A
KÝ hiÖu cÆp néi lùc
KÝ hiÖu cÆp néi lùc
e1=M/N (mm)
ea (mm)
KÝ hiÖu cÆp néi lùc
KÝ hiÖu ë b¶ng tæ
hîp
e1=M/N (mm)
ea (mm)
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét d íi cét BKÝ hiÖu
cÆp néi lùc
KÝ hiÖu ë b¶ng tæ
hîp
e1=M/N (mm)
ea (mm)
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét trªn cét A
37 9.91 658.03153 9.91 658.0330 9.91 658.03
402 52.77 766.51172 52.77 766.51220 52.77 766.510.11 -30.64 714.13
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét trªn cét B
203 3.46 1359.32198 3.46 1359.32190 3.46 1359.32
256 -4.69 1548.08235 -4.69 1548.08171 -4.69 1548.08
e0=e1+ea (m)
Mdh (kNm) Ndh (kN)
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét d íi cét A
e0=e1+ea (m) Ml (kNm) Nl (kN)
e0=e1+ea (m)
Mdh (kNm) Ndh (kN)
C¸c cÆp néi lùc nguy hiÓm dïng ®Ó tÝnh cèt thÐp phÇn cét d íi cét Be0=e1+ea
(m)Mdh (kNm) Ndh (kN)
PhÇn cét trªn
1 I-13 1.994 39.875 0.0500 0.06502 II-17 -18.015 41.130 0.4380 0.45303 II-18 -18.015 41.130 0.4380 0.4530
Vat lieu Rb(Mpa) Rbt(MPa) Eb(Mpa) Rs(MPa) Rsw (Mpa)Rsc (Mpa)11.5 0.9 27000 280 225 280
chon cap I_3
Ht(m) lo(m) b(cm) h(cm) a(cm) a'(cm)4.05 10.13 40 40 4 4
m% Is(cm4) I(cm4) Eb(Mpa) Es(Mpa) a eo/h2.6 9584.64 213333.3 27000 210000 7.777778 1.132486
ep eo'11.0288 59.18613 tinh theo nen lach tam lon
e 2.a' x As' As75.18613 8 22.428 10 18.59853 20.33771
As'=18.6 As' 19 Atb As=20.34 3 phi 25, 2 phi 20 As 21
kiÓm tra cÆp I-1a(cm) a'(cm) ho(cm) Za(cm) lo/h
4 4 36 32 25.3125
Is(cm4) I(cm4) Eb(Mpa) Es(Mpa) a eo/h10240 213333.3 27000 210000 7.777778 0.1625
ep eo'11.0288 7.833994 tinh theo nen lech tam be
e 2.a' x223.83399 8 22.428 -15.67939 TH dac biet
Ký hiÖu cÆp néi
lùc
Ký hiÖu ë b¶ng tæ
hîp
M (t.m)
N (t)
e1=M/N (m)
eo=e1+ea (m)
xR.ho
chän5F22,
xR.ho
1.730 34.610-2.453 36.392-2.453 36.392
Es(Mpa)210000 0.623 0.439
ho(cm) Za(cm) lo/h36 32 25.31 phai xet den ah cua uon doc
S h0.131875 1.132486 1.370835 0.189251 175300.24 1.306554
m1.291565 1.412341 2.703905
38.93624
As 19As' 21
S h0.131875 0.1625 1.867962 0.519048 234168.23 1.20523
Ngh e' N.e'1702400 -8 -325618
Mdh (tm)
Ndh (t)
xR aR
dmin de jl Ncr(kG)
m' mt
dmin de jl Ncr(kG)
Ht Hd H b htcét A 4050 5700 9750 400 400cét B 4050 5700 9750 400 600
M¸iGm1 Gm2 Gm
34.61 39.0348 73.64
cét Aet a M1 M2 R1 R2
0.05 0.1 1.73049 -3.46098 0.32073246 -0.376498
cét Bet M R
0.15 0.66375 0.114969
CÇu trôcGd
5.61
cét Aed M R
0.55 3.0855 0.335652
HT m¸iPm Dmax
5.265 60.06
cét APm/Gm cét A Dmax/Gd0.152125 10.70588
cét BM cét B ed M R
0.78975 1.189831 0.75 45.045 5.221431
Tmax2.25225
cét AR y My1.125171 3050 3.431773
cét B 1.198943 3050 3.656775
Giã
Pd Ph S1 S2 R1 R40.70704 0.53028 2.881008 2.784236 2.36528001 1.77396
r1 r2 r3 r40.001991 0.00503 0.00503 0.001991
Ra Rb Rc Rd0.974882 -3.511844 -3.5118436 0.383562
m1
HT ®øng CT
Mp/MG
Lùc h·m ngang
2.795534
hd Jt (cm4) Jd (cm4) t k600 213333.3 720000 0.415385 0.170222800 720000 1706666.7 0.415385 0.098218
Tªn cét TiÕt diÖn Néi lùcR 1 2 30.697230148811
Cét A
I - IMN
II - IIMN
III - IIIMN
IV - IVMNQ
Cét B
I - IMN
II - IIMN
III - IIIMN
IV - IVMNQ
Rg9.804483704946r denta
0.01404291568 -698.1801Q-0.38356176726
TÜnh t¶iTÜnh t¶i
Ho¹t t¶i m¸i Ho¹t t¶i cÇu trôc m¸i dÇm CT Tr¸i Ph¶i Dmax tr¸i Tmax tr¸i
4 5 6 7 8 9 101.73049 0 1.73049 0.26325
34.61 0 34.61 5.265-1.093292 -1.359389 -2.452681 -0.166317
34.61 0 36.3918 5.265-4.554272 1.726111 -2.828161 -0.692817
34.61 5.61 42.0018 5.265-8.528484 -0.187103 -8.715587 -1.297392
34.61 5.61 46.3578 5.2650.69723 0.335652 1.032882 0.1060660.66375 0 0.66375 -0.78975 0.78975 0 0
73.64 0 73.6446 5.265 5.265 0 00.198127 0 0.198127 -0.235738 0.235738 21.1468 2.603468
73.64 0 76.3176 5.265 5.265 0 00.198127 0 0.198127 -0.235738 0.235738 -23.8982 2.603468
73.64 11.22 87.5376 5.265 5.265 60.06 0-0.457194 0 -0.457194 0.543983 -0.543983 5.863954 -3.400383
73.64 11.22 93.7416 5.265 5.265 60.06 00.114969 0 0.114969 -0.136793 0.136793 -5.221431 -1.198943
Ho¹t t¶i cÇu trôc GiãDmax ph¶iTmax ph¶iTr¸i sang Ph¶i sang
11 12 13 140 0 0 00 0 0 0
-14.55346 2.304694 1.850341 -2.7955340 0 0 0
18.47954 2.304694 1.850341 -2.79553460.06 0 0 0
-2.003108 -4.119653 24.1014 -21.4651460.06 0 0 0
3.593447 -1.125171 5.918758 4.7866680 0 0 00 0 0 0
-21.1468 2.603468 14.22297 -14.222970 0 0 0
23.8982 2.603468 14.22297 -14.2229760.06 0 0 0
-5.863954 -3.400383 34.24048 -34.2404860.06 0 0 0
5.221431 -1.198943 -3.511844 3.511844
Ho¹t t¶i m¸i Ho¹t t¶i cÇu trôc
Tr¸i Ph¶i1 2 3 4 5 6 7
I - IM 1.73 0.26N 34.61 5.27
II - IIM -2.45 -0.17N 36.39 5.27
III - IIIM -2.83 -0.69N 42.00 5.27
IV - IVM -8.72 -1.30N 46.36 5.27Q 1.03 0.11
I - IM 0.66 -0.79 0.79 0N 73.64 -5.27 5.27 0
II - IIM 0.20 -0.24 0.24 21.15N 76.32 -5.27 5.27 0
III - IIIM 0.20 -0.24 0.24 -23.90N 87.54 -5.27 5.27 60.06
IV - IVM -0.46 0.54 -0.54 5.86N 93.74 -5.27 5.27 60.06Q 0.11 -0.14 0.14 -5.22
Tªn cét
TiÕt diÖn
Néi lùc
TÜnh t¶i Dmax tr¸i
Cét A
Cét B
Ho¹t t¶i cÇu trôc Giã
Tr¸i sang Ph¶i sang8 9 10 11 12
0 0 0 00 0 0 0
-14.55 2.30 1.85 -2.800 0 0 0
18.48 2.30 1.85 -2.8060.06 0 0 0-2.00 -4.12 24.10 -21.4760.06 0 0 03.59 -1.13 5.92 4.79
0 0 0 0 00 0 0 0 0
2.60 -21.15 2.60 14.22 -14.220 0 0 0 0
2.60 23.90 2.60 14.22 -14.220 60.06 0 0 0
-3.40 -5.86 -3.40 34.24 -34.240 60.06 0 0 0
-1.20 5.22 -1.20 -3.51 3.51
Tmax tr¸i Dmax ph¶i Tmax ph¶i
M (t.m)
1 IV-13 15.3862 IV-14 -30.1813 IV-18 -33.8864 III-13 14.8384379
cap 3 cap1 cap 3 cap 1 cÆp 2M(t) -33.886 15.386 -33.886 15.386N(t) 97.042 46.358 97.042 46.358eo(m) 0.3692 0.3519 0.3692 0.3519Mdh™ -8.7160 -8.716 -8.7160 -8.716Ndh™ 46.358 46.358 46.358 46.358
Vßng 1 CÆp 3 CÆp 1
Vat lieu 2 1.31370885Rb 11.5 Is 30284.8 19892.7049Rbt 0.9 I 720000 720000Eb 27000 eo/h 0.615333 0.61533333Rs 280 0.2425 0.2425Rsc 280 0.615333 0.61533333Rsw 225 S 0.253774 0.25377446Es 210000 1.35911 1.17722081
0.623 N cr 874578.4 732618.660.429 h 1.124807 1.06755159
a 7.777778 ep 16.0448 16.0448eo' 41.52788 37.5671405
Kich thuoc lÖch t©m lín lÖch t©m línHd(m) 5.7 e 67.52788 63.5671405lo(m) 8.55 2a' 8b(cm) 40 x (dxøng) 21.09609h(cm) 60 34.888a(cm) 4 As' 14.71354 14.7135392a'(cm) 4 0.05577267ho(cm) 56 x 0.05742127Za(cm) 52 x (pxøng) 3.21559106lo/h 14.25 As 14.71354 3.68289492
Ký hiÖu cÆp néi lùc
Ký hiÖu ë b¶ng tæ
hîp
m gt
dminde
jlxRaR
xR.ho
am
tinh uon doc m 0.6568540.6568541.313709
m'm t
N (t) e1=M/N (m) Mdh (tm)
46.358 0.3319 0.3519 -8.716 46.35846.358 0.6510 0.6710 -8.716 46.35897.042 0.3492 0.3692 -8.716 46.358
93.0528 0.15946256 0.179463 -2.828161235 42.0018
CÆp 4
-0.088
Vßng 2CÆp 3 CÆp 1
lÖch t©m lín67.5278752 63.56714
3.68289492 23.56230.41709257 -0.0335390.59279629 -0.032995
tÝnh theo CT5.23 ho 33.1965922 -1.84771923.5622964 3.682895
eo=e1+ea (m)
Ndh (t)
0.1644151.0518881.216303
PhÇn cét trªn
1 IV-14 -30.18 46.36 0.65102 IV-17 -33.89 92.30 0.36713 IV-18 -33.89 97.04 0.3492
Vat lieu Rb(Mpa) Rbt(MPa) Eb(Mpa) Rs(MPa) Rsw (Mpa)11.5 0.9 27000 280 225
chon cap 3
Hd(m) lo(m) b(cm) h(cm) a(cm)5.70 14.25 40 60 4
m% Is(cm4) I(cm4) Eb(Mpa) Es(Mpa) a2 30284.8 720000 27000 210000 7.777778
ep eo'16.0448 53.36726 tinh theo nen lech tam lon
e 2.a' x As'79.36726 8 34.888 25 18.54034
As'=18.6 As' 19 As=20.34 5 phi 25, As 24.54
kiÓm tra cÆp2a(cm) a'(cm) ho(cm) Za(cm) lo/h
4 4 56.00 52.00 23.75
Is(cm4) I(cm4) Eb(Mpa) Es(Mpa) a29433.04 720000 27000 210000 7.777778
ep eo'16.0448 45.62934 tinh theo nen lach tam lon
e 2.a' x271.62934 8 34.888 6.705609 TH dac biet
Ký hiÖu cÆp néi
lùc
Ký hiÖu ë b¶ng tæ
hîp
M (t.m)
N (t)
e1=M/N (m)
xR.ho
chän 5F22,
xR.ho
0.6710 -8.72 46.360.3871 -8.72 46.360.3692 -8.72 46.36
Rsc (Mpa) Es(Mpa)280 210000 0.623 0.439
a'(cm) ho(cm) Za(cm) lo/h4 56 52 23.75 phai xet den ah cua uon doc
eo/h S0.61531 0.1475 0.61531 1.359103 0.253779 314851.03
As m24.95384 0.827694 1.114011 1.941705
Atb 43.49418
As 19As' 24.54
eo/h S0.645186 0.1475 0.645186 1.367393 0.247614 305757.33
Ngh e' N.e' TH dac biet 2766400 20 909972.9
eo=e1+ea (m)
Mdh (tm)
Ndh (t)
xR aR
dmin de jl Ncr(kG)
m' mt
dmin de jl Ncr(kG)
phai xet den ah cua uon doc
h1.445538
h1.178712
PhÇn cét trªn
1 II-16 31.380 81.056 0.38712 II-17 -30.984 81.056 0.38223 II-18 31.168 85.795 0.3633
Vat lieu Rb(Mpa) Rbt(MPa) Eb(Mpa) Rs(MPa) Rsw (Mpa)11.5 0.9 27000 280 225
Tinh cap 3
Ht(m) lo(m) b(cm) h(cm) a(cm)4.05 10.13 40 60 4
m% Is(cm4) I(cm4) Eb(Mpa) Es(Mpa) a1.3 19685.12 720000 27000 210000 7.7777778
ep eo'16.0448 46.82222 tinh theo nen lach tam lon
e 2.a' x As'72.8222158 8 34.888 18.651 15.407506
As'=15.4 As' 15.2 As=15.4 As 15.2
Tinh cap 1m% Is(cm4) eo/h
1.3 19685.12 0.68 0.21625 0.63881 1.4146276
e 2.a' x As'=As75.1638129 8 34.888 17.62089 15.573381
Ký hiÖu cÆp néi lùc
Ký hiÖu ë b¶ng tæ
hîp
M (t.m)
N (t)
e1=M/N (m)
xR.ho
chän4F22,chän4F22,
dmin de jl
xR.ho
Mdh (tm)
0.4071 0.198 76.3180.4022 0.198 76.3180.3833 0.198 76.318
Rsc (Mpa) Es(Mpa)280 210000 0.623 0.439
a'(cm) ho(cm) Za(cm) lo/h4 56 52 16.88 phai xet den ah cua uon doc
eo/h S0.638806 0.21625 0.638806 1.405816 0.248889 472939.66
As m15.40751 0.687835071 0.687835 1.37567
Atb 30.8150112
S h ep eo'0.248889 471601.27 1.207546 16.0448 49.16381 tinh theo nen lach tam lon
0.69524 1.390480464
eo=e1+ea (m)
Ndh (t)
xR aR
dmin de jl Ncr(kG)
m' mt
Ncr(kG)
m' mt
phai xet den ah cua uon doc
h1.221608
tinh theo nen lach tam lon
PhÇn cét trªn
e1=M/N (m)
1 IV-14 -34.698 93.742 0.37012 IV-17 -38.850 144.426 0.26903 IV-18 -35.558 178.894 0.1988
Vat lieu Rb(Mpa) Rbt(MPa) Eb(Mpa) Rs(MPa) Rsw (Mpa)11.5 0.9 27000 280 225
Tinh cap 3
Ht(m) lo(m) b(cm) h(cm) a(cm)5.70 14.25 40 80 4
m% Is(cm4) I(cm4) Eb(Mpa) Es(Mpa) a0.7 27578.88 1706667 27000 210000 7.777777778
ep eo'21.0608 32.70242 tinh theo nen lach tam lon
e 2.a' x As'68.70242 8 47.348 38.89004 10.77930229
As'=15.4 As' 15.2 As=15.4 As 15.2
Tinh cap 1m% Is(cm4) eo/h
0.7 27578.88 0.50 0.20687 0.28596 1.5257178
e 2.a' x As'=As84.25307 8 47.348 20.37861 8.575486376
Ký hiÖu cÆp néi
lùc
Ký hiÖu ë b¶ng tæ
hîp
M (t.m)
N (t)
xR.ho
chän4F22,chän4F22,
dmin de jl
xR.ho
Mdh (tm)
0.4001 -0.457 93.742s -0.457 93.742
0.2288 -0.457 93.742
Rsc (Mpa) Es(Mpa)280 210000 0.623 0.439
a'(cm) ho(cm) Za(cm) lo/h4 76 72 17.81 phai xet den ah cua uon doc
eo/h S0.285958 0.206875 0.285958 1.354325 0.385005 ###
As m10.7793 0.3545823122 0.354582 0.709165
Atb 21.558604583
S h ep eo'0.385005 549019.23 1.2059 21.0608 48.25307 tinh theo nen lach tam lon
0.282088 0.5641767352
eo=e1+ea (m)
Ndh (t)
xR aR
dmin de jl Ncr(kG)
m' mt
Ncr(kG)
m' mt
phai xet den ah cua uon doc
h1.429513
tinh theo nen lach tam lon