==============================6ڵ==============================

һ.:
    ڵ ID: 4761   ڵ: 6/2   ڵ: Ÿ()--ս--ǿ  ڵʽ˰ ˰
    1Ϣ:     H(400~600)X220X8X10   Q355   ǿ 355.0N/mm2   ޿ǿ 470.0N/mm2
    2Ϣ:     H(400~600)X220X8X10   Q355   ǿ 355.0N/mm2   ޿ǿ 470.0N/mm2
    Ϣ:       H450X300X8X12   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˨: 62+225  Ե˨: 62 Ե˨߾56, Ե52 ˨Xľ60 52У10

    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˨: 62+225  Ե˨: 62 Ե˨߾56, Ե52 ˨Xľ60 52У10
  ǿ˨: ֱM24, Ftb= 180.000 KN, Fvb=  81.000 KN

  1. Ե˨:
    ڵֵ:	M    =   -259.80 kNm  V    =    -72.94 kN   N    =    -31.11 kN      Ϻ:  1 (ǵ)
    Ե˨ϵ: =3.621
    ˨125.36 KN   <   Ftb = 180.00 KN       ()
  2. ѹ˨:
    ѹԵ˨  4 
    ڵֵ:	M    =   -259.80 kNm  V    =    -72.94 kN   N    =    -31.11 kN      Ϻ:  1 (ǵ)
    Fv= (V*cos+N*sin) / n = (72943.70*1.00+31113.43*0.10) / 4 = 18.24 KN  <   Fvb=81.00 KN       ()
  3. ˰:
    ˰ߴ: 300 X 798 X 25 (mm)
    ˰    25  >=     24       ()

  4. :
    ˨ู    56˨ԤΪ   225 KN
    ӦΪ (0.4*P)/(ew*tw)=(0.4*225000.00)/(56*8)= 200.9  <=  305.0  N/mm2     ()

  5. ˰庸:
    ˰庸ӷʽ: Ե¿ں, Ǻ 
    Ǻߴ:   8 mm,   ǺǿֵΪ:   200 N/mm2
    ڵֵ:	M    =   -259.80 kNm  V    =    -72.94 kN   N    =    -31.11 kN      Ϻ:  1 (ǵ)
    Af = tf*Bf = 10.0*220 = 2200.0 mm2
    T1 = H*0.5 - tf*0.5= 600.0*0.5 - 10.0*0.5 = 295.00 mm
    AewW = 2*0.7*(H-2*tf)*Hf2= 2*0.7*(600.0-2*10.0)*8) = 6496.00 mm2
    Ix = 565051200.00 mm4
    Wew = Ix / (0.5*H)=565051200.00 / (0.5*600.00) = 1883504.00 mm3
    Mc=M/Wew=259800208.00/1883504.00 =137.93 N/mm2
    v=V/AewW=72943.70/6496.00 =11.23 N/mm2
    Nc=N / (2*Af+AewW)=31113.43 / (2*2200.00+6496.00) =2.86 N/mm2
    fs=max((Nc+Mc)/f,  ((Nc/f)^2 + ^2)^2= max((2.86+137.93)/1.22,  ((2.86/1.22)^2 + 11.23^2)^0.5 = 115.40 N/mm2
    ǺӦ:   115  <=    200 N/mm2      ()

  6. Ӿ:
    ˰ԵļӾ߳ߴ: 10810810,   10 mm
    ƼȡΪ˨ֵ125.36 kN
    Ӧ: =Fb / t*l=125359.36 / (10*98)=127.92 N/mm2  <=  175.00  N/mm2    ()
    Ӿߺųߴ:   8 mm
    ǺӦ: =Fb / ((lw-2*hf)*2*hf*0.7)=125359.36 / ((98-2*8)*2*8*0.7)=136.50 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    =     -4.15 kNm  V    =      6.68 kN   N    =      0.55 kN      Ϻ:  1 (ǵ)
    Ե˨ϵ: =2.984
    ˨7.27 KN   <   Ftb = 180.00 KN       ()
  2. ѹ˨:
    ѹԵ˨  4 
    ڵֵ:	M    =     -4.15 kNm  V    =      6.68 kN   N    =      0.55 kN      Ϻ:  1 (ǵ)
    Fv= (V*cos+N*sin) / n = (6679.81*1.00+545.29*0.10) / 4 = 1.67 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    =     -4.15 kNm  V    =      6.68 kN   N    =      0.55 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=4146065.75/438290.69 =9.46 N/mm2
    v=V/AewW=6679.81/1512.00 =4.42 N/mm2
    Nc=N / (2*Af+AewW)=545.29 / (2*2200.00+1512.00) =0.09 N/mm2
    fs=max((Nc+Mc)/f,  ((Nc/f)^2 + ^2)^2= max((0.09+9.46)/1.22,  ((0.09/1.22)^2 + 4.42^2)^0.5 = 7.83 N/mm2
    ǺӦ:     8  <=    200 N/mm2      ()

  5. Ӿ:
    ˰ԵļӾ߳ߴ: 10410410,   10 mm
    ƼȡΪ˨ֵ 7.27 kN
    Ӧ: =Fb / t*l=7273.65 / (10*94)=7.74 N/mm2  <=  175.00  N/mm2    ()
    Ӿߺųߴ:   6 mm
    ǺӦ: =Fb / ((lw-2*hf)*2*hf*0.7)=7273.65 / ((94-2*6)*2*6*0.7)=10.56 N/mm2  <=  200.00  N/mm2    ()
==============================ڵ==============================

棺H450X300X8X12
ڵ Vp = db * dc * tc = 58.2*42.6*0.8 =   1984.384cm3
  : Ϻ1(1.30*+1.50*) (ǵ) ()
ڵӦ: fv = M / Vp = 255.654 / 1.984
              fv = 128.83   <=  175.00 N/mm2     ()
