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һ.:
    ڵ ID: 4745   ڵ: 3/2   ڵ: Ÿ()--ս--ǿ  ڵʽ˰ ˰
    1Ϣ:     H(500~700)X220X8X12   Q355   ǿ 355.0N/mm2   ޿ǿ 470.0N/mm2
    2Ϣ:     H(500~700)X220X8X12   Q355   ǿ 355.0N/mm2   ޿ǿ 470.0N/mm2
    Ϣ:       H450X300X8X14   Q355   ǿ 355.0N/mm2   ޿ǿ 470.0N/mm2
    ˨Ϣ:    M24 10.9Ħ͸ǿ˨ Ӵ洦ʽ: 裨ɰ =0.40 Nvb=81KN
    Ϣ:  Ǻ(ѹ)ǿֵ ffw 200 N/mm2 ffu 280 N/mm2

    ڵ˰Ӿ߲÷ʽ: üӾ
    ڵ˨Ҫ  С߾: 52mm,  С: 52,  ˨С: 78
    ڵ˨: M24   Ե˨߾56, Ե52  Ե˨: 64+78  Ե˨: 64+235 Ե˨߾56, Ե52 ˨Xľ60 62У12

    ҽڵ˰Ӿ߲÷ʽ: üӾ
    ҽڵ˨Ҫ  С߾: 52mm,  С: 52,  ˨С: 78
    ҽڵ˨: M24   Ե˨߾52, Ե52  Ե˨: 62  Ե˨: 62 Ե˨߾52, Ե52 ˨Xľ55 42У8

  Ʒ: кѹԵ

. ڵ
  ˨Ҫ  С߾: 52mm,  С: 52,  ˨С: 78
  ˨: M24   Ե˨߾56, Ե52  Ե˨: 64+78  Ե˨: 64+235 Ե˨߾56, Ե52 ˨Xľ60 62У12
  ǿ˨: ֱM24, Ftb= 180.000 KN, Fvb=  81.000 KN

  1. Ե˨:
    ڵֵ:	M    =   -461.97 kNm  V    =   -132.60 kN   N    =    -57.94 kN      Ϻ:  9 (ǵ)
    Ե˨ϵ: =4.941
    ˨139.26 KN   <   Ftb = 180.00 KN       ()
  2. ѹ˨:
    ѹԵ˨  6 
    ڵֵ:	M    =   -454.32 kNm  V    =   -137.60 kN   N    =    -59.36 kN      Ϻ:  1 (ǵ)
    Fv= (V*cos+N*sin) / n = (137603.53*1.00+59364.62*0.10) / 6 = 22.93 KN  <   Fvb=81.00 KN       ()
  3. ˰:
    ˰ߴ: 300 X 899 X 25 (mm)
    ˰    25  >=     24       ()

  4. :
    ˨ู    56˨ԤΪ   225 KN
    ӦΪ Nt2/(ew*tw)=111048.85/(56*8)= 247.9  <=  305.0  N/mm2     ()

  5. ˰庸:
    ˰庸ӷʽ: Ե¿ں, Ǻ 
    Ǻߴ:   8 mm,   ǺǿֵΪ:   200 N/mm2
    ڵֵ:	M    =   -461.97 kNm  V    =   -132.60 kN   N    =    -57.94 kN      Ϻ:  9 (ǵ)
    Af = tf*Bf = 12.0*220 = 2640.0 mm2
    T1 = H*0.5 - tf*0.5= 700.0*0.5 - 12.0*0.5 = 344.00 mm
    AewW = 2*0.7*(H-2*tf)*Hf2= 2*0.7*(700.0-2*12.0)*8) = 7571.20 mm2
    Ix = 913198848.00 mm4
    Wew = Ix / (0.5*H)=913198848.00 / (0.5*700.00) = 2609139.50 mm3
    Mc=M/Wew=461971040.00/2609139.50 =177.06 N/mm2
    v=V/AewW=132596.14/7571.20 =17.51 N/mm2
    Nc=N / (2*Af+AewW)=57942.57 / (2*2640.00+7571.20) =4.51 N/mm2
    fs=max((Nc+Mc)/f,  ((Nc/f)^2 + ^2)^2= max((4.51+177.06)/1.22,  ((4.51/1.22)^2 + 17.51^2)^0.5 = 148.83 N/mm2
    ǺӦ:   149  <=    200 N/mm2      ()

  6. Ӿ:
    ˰ԵļӾ߳ߴ: 10810810,   10 mm
    ƼȡΪ˨ֵ139.26 kN
    Ӧ: =Fb / t*l=139258.34 / (10*98)=142.10 N/mm2  <=  175.00  N/mm2    ()
    Ӿߺųߴ:   8 mm
    ǺӦ: =Fb / ((lw-2*hf)*2*hf*0.7)=139258.34 / ((98-2*8)*2*8*0.7)=151.63 N/mm2  <=  200.00  N/mm2    ()
. ҽڵ
  ˨Ҫ  С߾: 52mm,  С: 52,  ˨С: 78
  ˨: M24   Ե˨߾52, Ե52  Ե˨: 62  Ե˨: 62 Ե˨߾52, Ե52 ˨Xľ55 42У8
  ǿ˨: ֱM24, Ftb= 180.000 KN, Fvb=  81.000 KN

  1. Ե˨:
    ڵֵ:	M    =     -8.49 kNm  V    =     12.82 kN   N    =      1.05 kN      Ϻ:  1 (ǵ)
    Ե˨ϵ: =2.984
    ˨14.90 KN   <   Ftb = 180.00 KN       ()
  2. ѹ˨:
    ѹԵ˨  4 
    ڵֵ:	M    =     -8.49 kNm  V    =     12.82 kN   N    =      1.05 kN      Ϻ:  1 (ǵ)
    Fv= (V*cos+N*sin) / n = (12821.84*1.00+1046.68*0.10) / 4 = 3.21 KN  <   Fvb=81.00 KN       ()
  3. ˰:
    ˰ߴ: 300 X 409 X 20 (mm)
    ˰    20  >=     19       ()

  4. ˰庸:
    ˰庸ӷʽ: Ե¿ں, Ǻ 
    Ǻߴ:   6 mm,   ǺǿֵΪ:   200 N/mm2
    ڵֵ:	M    =     -8.49 kNm  V    =     12.82 kN   N    =      1.05 kN      Ϻ:  1 (ǵ)
    Af = tf*Bf = 10.0*220 = 2200.0 mm2
    T1 = H*0.5 - tf*0.5= 200.0*0.5 - 10.0*0.5 = 95.00 mm
    AewW = 2*0.7*(H-2*tf)*Hf2= 2*0.7*(200.0-2*10.0)*6) = 1512.00 mm2
    Ix = 43829068.00 mm4
    Wew = Ix / (0.5*H)=43829068.00 / (0.5*200.00) = 438290.69 mm3
    Mc=M/Wew=8491643.00/438290.69 =19.37 N/mm2
    v=V/AewW=12821.84/1512.00 =8.48 N/mm2
    Nc=N / (2*Af+AewW)=1046.68 / (2*2200.00+1512.00) =0.18 N/mm2
    fs=max((Nc+Mc)/f,  ((Nc/f)^2 + ^2)^2= max((0.18+19.37)/1.22,  ((0.18/1.22)^2 + 8.48^2)^0.5 = 16.03 N/mm2
    ǺӦ:    16  <=    200 N/mm2      ()

  5. Ӿ:
    ˰ԵļӾ߳ߴ: 10410410,   10 mm
    ƼȡΪ˨ֵ14.90 kN
    Ӧ: =Fb / t*l=14897.32 / (10*94)=15.85 N/mm2  <=  175.00  N/mm2    ()
    Ӿߺųߴ:   6 mm
    ǺӦ: =Fb / ((lw-2*hf)*2*hf*0.7)=14897.32 / ((94-2*6)*2*6*0.7)=21.63 N/mm2  <=  200.00  N/mm2    ()
==============================ڵ==============================

棺H450X300X8X14
ڵ Vp = db * dc * tc = 68.3*42.2*0.8 =   2307.072cm3
  : Ϻ9(0.90*+Y-i+1.30*+1.50*) (ǵ) ()
ڵӦ: fv = M / Vp = 453.902 / 2.307
              fv = 196.74   >   175.00 N/mm2   (************)
ڵ򿹼㣬ҪбӾߡӾߺΪ8бӾߣ
