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    1. ”‡°èͲŽ×ºÎÈÝ·eµÄ´_¶¨
    ¸ù“þ(j¨´)½›(j¨©ng)òž¹«Ê½:
    V/Vj¡Ü0.5~0.65(È¡0..56)
    Çó³ö£ºVj=14.3
    V¡ª¡ªÔO(sh¨¨)Ó‹î~¶¨ÑbÝdÈÝ·eV= 8(m3)
    Vj ¡ª¡ª”‡°èͲŽ×ºÎÈÝ·e(m3)
    2. ”‡°èÝ”ËÍ܇ÉÏ܇²¿·ÖµÄÔO(sh¨¨)ӋУºË
    £¨1£©.ÉÏ܇ºó·À×o(h¨´)™ÚµÄУºË
    ºó·À×o(h¨´)™Ú½ØÃæÈçÉψD£¬È¡…¢¿¼×ø˜Ë(bi¨¡o)ϵyzÝS£¬·Ö³É4²¿·Ö·Ö„eÓ‹Ëã‘TÐԾأº
    AI=27¡Á3=81©L2
    yI=-80+1.5=-78.5mm zI=50-3-(30-3)/2=33.5mm
    AII=80¡Á3=240 ©L2
    yII=-80/2=-40mm zII=50-1.5=48.5mm
    AIII=(100-6)¡Á3=282©L2
    yIII=-1.5mm zIII=0mm
    AIV=30¡Á3=90©L2
    yIV=-30/2=-15mm zIV=-50+1.5=-48.5mm
    A= AI + AII + AIII + AIII=693©L2
    yc= (AI¡ÁyI+ AII¡ÁyII + AIII¡ÁyIII + AIV¡ÁyIV)/A =-25.47 mm
    zc= (AI¡ÁzI+ AII¡ÁzII + AIII¡ÁzIII + AIV¡ÁzIV)/A =27.01 mm
    IIzc=1/12¡Á27¡Á33+81¡Á(80-1.5-25.47)2=227847.40mm4
    IIIzc=1/12¡Á3¡Á803+240¡Á(80/2-25.47)2=178669.01mm4 IIIIzc=1/12¡Á94¡Á33+282¡Á(25.47-3/2)2=162237.67mm4
    IIVzc=1/12¡Á3¡Á303+90¡Á(25.47-30/2)2=16615.88mm4
    Izc= IIzc + IIIzc + IIIIzc + IIVzc=585369.96 mm4
    WZC= Izc/ymax=585369.96/(80-25.47)=10734.82mm3
    ...
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