3.300 m m m m m m 0 m m m 0 m 0 m m m he m T m 1.50 m N/ N

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あきとしむこやま
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2 3.300 m m m m m m 0 m m m 0 m 0 m m m he m T m 1.50 m N/ N/ X(m) Y(m) (kn/m2)

3 kn N/m y P = m xp = m b p = m σ ck = 21 N/mm 2 σ ca = 7 N/mm 2 τ ca = 0.7 N/mm 2 σ sa = 180 N/mm 2 τ a 2.1 N/mm 2 X P P y p 0.26 N/mm 2 t(mm) U(mm) No X Y Xn+1 - Xn / m2 γc kn, ) Σ i ( i 2/3 i)} i Σ i ( i 1/3 i)} i i

4 mm (SKK400) (SS400) L 8.0 m L 7.8 m 1.00 mm EP N/mm2 σsta 140 N/mm2 σs 90 N/mm (L/D) δa 1.5 cm 2.0 cm EL(m) m) l m mm m

5 Σ kn/m2 1 1 N kn/m m m / 4/ = mm 250 kn/m2 kn/m2 RuqdA Σi i (N/) u: (N) p : (m2) e: π ²/4 π / ² ² )/ m qd: (n/m2) : () π π i: () i: ( /2)

6 (kn) (m) (knm) δ= () 0 j= 0 () α= 54 () kn 0 kn a kn KA=2 Pa/(γs h 2 ) = KH=Ka cos(δ ) = KV=Ka sin(δ ) = 0.103

7 (kn) PH=1/2 h^2 γs KH (m) (knm) My=PH Y PV=1/2 h^2 γs KV Mx=PV X QwH=Qw h KH My=QwH Y QwV=Qw h KV Mx=QwV X h : m PH : PV : QwH : QwV : Σ kn Σ kn M kn ( M : A ) N m m (2 LAB+LBC)/ m 0 m (m) ( ' y y m m Σwi ΣMr Σre 9.22 Σwi' ΣMr' Σre' ΣA F ΣA' F' 0'

8 (mm D (mm) d (mm) Apπ (D 2 d 2 ) mm2 Ipπ (D 4 d 4 ) E+07 mm4 Zpπ (D 4 d 4 )/(32 D) mm3 A 6.9E E+13 B 6.9E E+13 C 6.9E E E+14 mm4 o m4 1 Ip=Io/ m4 1.0 (mm D t L n Ep Ip Ap (mm) (mm) (m) () (N/mm2) (mm4) (mm2) E E k m Kv p p/l / (N/mm) N/m a 1/n u1/ kn n: 6 u Σi i π kn Bh D β Kh Kho(Bh/0.3) -3/4 15, / 0.3 ) -3/4 = 7,351 kn/m 3 = 74 N/mm2 Kh 0 =1/0.3αEo 1/ ,760 = 15,867 kn/m 3 α 1.00 E N = 4,760 kn/m 2 m β 4 KhD 7,351 4EI m EI E E+13 Nmm knm2

9 a h D 7, δa β kn δa β K1 4 β K2 3 2 β K4 2 β θi0 xxσ 1cos2θi vsinθi xy yxσ v 1sinθicosθi 0 xa axσ{ v 1xisinθicosθi 2cosθi} yyσ vcos 2 θi 1sin 2 θi} ya ayσ{ vcos 2 θi 1sin 2 θi}xi 2sinθi} 0 aaσ{ vcos 2 θi 1sin 2 θi}xi 2 (2 3xisinθi δx α δy δx α δx α δx α ### δx α δx 0 α ### δx m cm δy m cm α rad rad Ni vδyi Hi 1δxi 2α ti 3δxi + 4α δxi δxcosθi(δyαxi)sinθi δyi δxsinθi(δyαxi)cosθi xi θi δxi δyi Ni Hi ti nixi xi θi δxi δyi Ni Hi ti

10 kn/m) p p' ' max min max min a 77 (kn) a / (kn) a (kn) /βe -βx (βhocosβx(1βho)sinβx) /2e -βx sinβx kni N β m -1 ho t/ (Nnm) max /2β{(1+2βho)2+1)e -βlm Nm lm1/βtan -1 1/(1+2βho)3.368 m /βe -π/4 sinπ/4) Nm lmπ/4β1.738 m

11 max σ e Z N/mm2 σsta 140 N/mm2 σ e Z N/mm2 σsta -140 N/mm2

12 kn kn = P= 0 kn y P = m ( ) b p = 0 m 1m P u = 0 kn/m knm/m kn/m kn knm/m kn/m

13 ( B2 = 500 mm b = 1000 mm i = 60 mm d = 440 mm A s = 1301 mm 2 U = 360 mm b σ c x/3 x=kd M C h A s d z=jd T=σ s A s E A S S n = = 15 np = n = Ec b d k = 2 k ( np) + 2np np = j = 1 = M= 5.81E+07 Nmm S= 4.92E+04 N 2.6 N/mm N/mm N/mm 2 σsa= N/mm N/mm 2 τca= 0.70 N/mm τca= 2.10 d = 361 mm D16@250 M= 1.46E+07 Nmm A s = 794 mm 2 S= 1.98E+04 N U = 200 mm K = j = N/mm N/mm N/mm 2 σsa= N/mm N/mm 2 τca= 0.70 N/mm N/mm τa= 2.10

14 l lh2/2 l 0.250m e= 0.4 m LAB= m LBC= m a= m b= m m a= m b= m m H3 = m H2 = m B= m HS = m l m =B5 = m l s = m W1=H3γc 7.35 kn/m 7.35 kn/m2 W2=H2γc12.25 kn/m kn/m2 W 3 W 1 (W 2 W 1 )l s B kn/m kn kn kn kn/m2 kn/m L l m 2 2W1 W knm/m 6

15 T = mm b = mm i = mm d = A s = U = mm mm 2 mm ES A n = = 15 np = n S = Ec b d ( ) = k = np + 2np np k j = 1 3 = M= Nmm S= N N/mm 2 N/mm N/mm 2 σsa= N/mm 2 d = 390 mm N/mm 2 τca= 0.70 N/mm N/mm² τca= 2.10

16 lh2/2 l 0.250m B6l 1.750m A B C m m m Ee=2Pv/L l Ex=Ee/B6l Ev=1/2(Ex+Ee)(B6-l) Ex=Ee/B6l Ev=1/2(Ex+Ee)(B6-l) kn N kn kn kn M w = knm/m Smax = kn l 0.47 m

17 T = 500 b = 1000 i = 60 d = 440 A s = 1146 U = mm mm mm mm mm 2 mm ES A n = = 15 np = n S = Ec b d ( ) = k = np + 2np np k j = 1 3 = M= 5.81E+07 Nmm S= 1.03E+05 N 2.7 N/mm N/mm N/mm 2 σsa= N/mm 2 d = 410 mm N/mm 2 τca= 0.70 N/mm N/mm² τca= 2.10

18 (kn) (m) (knm) (kn) (m) (knm) = kn

19 (kn) PH=1/2 h^2 γs KH (m) (knm) My=PH Y PV=1/2 h^2 γs KV Mx=PV X QwH=Qw h KH My=QwH Y 0 QwV=Qw h KV Mx=QwV X m Σ kn Σ kn M kn m (2 LAB+LBC)/ m 0 m m y / / m Σwi ΣMr Σre ΣA F

20 2. K1 4 β K2 3 2 β 5676 K4 2 β δx α δy δx α δx α δx α 0 δx α δx 0 α 0 δx cm/ δy cm/ α 012 rad 018 rad/ Ni vδyi Hi 1δxi 2α ti 3δxi + 4α δxi δxcosθi(δyαxi)sinθi δyi δxsinθi(δyαxi)cosθi xi θi δxi δyi Ni Hi ti nixi kn/m) p max min max , a h D δa kn β δa a Ru/ / kn a N a 1/n u1/ kn

21 2 /βe -βx (βhocosβx(1βho)sinβx) /2e -βx sinβx kni N β m -1 ho t/ (Nnm) max /2β{(1+2βho)2+1)e -βlm Nm lm1/βtan -1 1/(1+βho) m /βe -π/4 sinπ/4) Nm lmπ/4β m max σ e Z (N/mm2) σsta 210 (N/mm2) σ e Z (N/mm2) σsta -210 (N/mm2)

22 kn P= 0 kn y P = m ( ) b p = 0 m 1m P u = 0 kn/m kn m knm/m kn/m kn m 0.421m kn knm/m kn/m

23 B2 = 500 mm b = 1000 mm i = 60 mm d = 440 mm A s = 1301 mm 2 U = 360 mm b σ c x/3 x=kd M C h A s d z=jd T=σ s A s E S A n = = 15 np = n S = Ec b d k = ( np) k + 2np np = j = 1 3 = M= 6.55E+07 Nmm S= 5.76E+04 N 2.9 N/mm N/mm N/mm 2 σsa= N/mm N/mm 2 τca= 1.05 N/mm N/mm τa= 3.15 d = 361 mm D16@250 M= 1.33E+07 Nmm A s = 794 mm 2 S= 1.88E+04 N U = 200 mm K = j = N/mm N/mm N/mm 2 σsa= N/mm N/mm 2 τca= 1.05 N/mm N/mm τa= 3.15

24 lh2/2 l 0.250m l e= 0.4 m LAB= m LBC= m a= m b= m Lc= m a= m b= m Lc= m H3= m H2= m B= m HS= m l m =B5= m l s = m W1=H3γc 7.35 kn/m W2=H2γc12.25 kn/m kn/m2 kn/m2 W 3 W 1 (W 2W 1 )l s kn/m2 B kn/m kn kn kn ls/2w1w kn/m l m 2 L 2W1 W knm/m

25 T = mm b = mm i = mm d = A s = U = mm mm 2 mm ES A n = = 15 np = n S = Ec b d ( ) = k = np + 2np np k j = 1 = M= Nmm S= N 2.7 N/mm N/mm N/mm 2 σsa= N/mm 2 d = 390 mm N/mm 2 τca= 1.05 N/mm N/mm² τca= 3.15

26 lh2/2 l 0.250m B6l 1.750m A B C m LAB= m m Ee=2Pv/L l Ex=Ee/B6l Ev=1/2(Ex+Ee)(B6-l) Ex=Ee/B6l Ev=1/2(Ex+Ee)(B6-l) kn N kn kn M w = knm/m kn Smax = kn l 0.47 m

27 T = mm b = mm i = mm d = A s = U = mm mm 2 mm ES A n = = 15 np = n S = Ec b d ( ) = k = np + 2np np k j = 1 = M= 5.96E+07 Nmm S= 8.92E+04 N 2.8 N/mm N/mm N/mm 2 σsa= N/mm 2 d = 410 mm N/mm 2 τca= 1.05 N/mm N/mm² τca= 3.15

he T N/ N/

he T N/ N/ 6.000 1.000 0.800 0.000 0.500 1.500 3.000 1.200 0.000 0.000 0.000 0.000 0.000-0.100 he 1.500 T 0.100 1.50 0.00 2 24.5 N/ 3 18.0 N/ 3 28.0 18.7 18.7 14.0 14.0 X() 20.000 Y() 0.000 (kn/2) 10.000 0.000 kn