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1、 , 1234124m221.5m524m6483.5mmb=1.0ml=1.5m0.2mh=1.8m2.0m1.8m11H1=2h=21.8=3.6mL1=3L=31.5=4.5mQk=2.0KN/O1Q235A(3)(GB700-89)Q235A248mm3.5mm6.5m1.5m3(GB978-67)KTH330-0845mm51mm6750mm200mm4-6m(GBJ588)II4mm89CW0=0.45KN/m23.5 cm3.5cm3.2mm0.01KN/m2w1w=(3.5+3.5)0.32/(3.53.5) 1.05=0.1921. 05S=1.20.192=0.234-4,
2、Z4-19CH=24 mz=1.25 H=5mz=0.5424 mu2=1.25 WK=0.7zS W02SW0WK=0.71.250.230.45=0.09KN/m2qWK=WKL=0.091.8=0.162KN/m4-33MW=1.4 qWKh2/10 qWKWKLW4-31WW= MW/WMW=1.40.1621.82/10=0.073KNm24 mW= MW/W=(0.073106) / (5.08103)=14.37N/mm25mW= 14.37 (0.54 / 1.25)=6.21N/mm221NGK4-38gk=0.134KN/m21 mNGK=Hgk=240.134=3.21
3、KN2Qp=0.3KN/m21.8m,NQ1K=0.5lb+0.3lQp=0.5(1+0.3)1.50.311=3.2 KN4-40L=1.5m0.228KN0.011.524=0.36 KNNQ2K=0.228+0.36=0.588 KNQK2.03KN/m24-41NQ3K=4.86KN4-32NQiK= NQ1K+ NQ2K+ NQ3K=3.2+0.588+4.86=8.65 KN34-31N= NGK 1.2/K1+ NQiKK14-35K1=0.85N=3.211.2/0.85+1.48.65=16.6 KN3N/A+ MW/WfcNAfc-W=h / I4-37I4-31 i=1.
4、58cm4-36M=1.5h h=1.8m=h / i=1.51.8 / 1.5810-2 =170.84-37=0.225A4-31A=4.89cm2fc=205N/mm2Afc-W=0.2254.89102(205-14.37)10-3=20.97KNN=16.63 KN()4Afcw=0.2254.89102(205-14.37)=20.97KNHd=K(Afcw-1.4NQiK)/1.2gK=0.85(20.97-1.48.65)/(1.20.134)=47 m5NHQAfcNHNH=HW+3.0KNHW=HW=1.4WKAWAWH=LH/i4-37LHLH=0.2H=0.21000/
5、1.5810=126.5mm=0.417Afc=1020.4174.8920.5=41.8KNNH=1.4WKAW+3.0=1.40.1063.64.5+3.0=5.4NHAfc()P=N/AbfPN-Ab-f-f=KbfKfk-Kb-4-47P=16.6/(1.50.9)=11.9 KN/m2fO=120KN/m2P()1(1)1200(2)500mm13(3)1.5m(4)200mm(5)36m(6)500mm(7)500mm1300(8)(9)()150mm250mm10Omm121m(10)2m150mm(11)(12)4m6m(13)15m(14)(15)150mm(16)(17)1.2m180mm()(18)456021.260315m()180mmC10220200.831()2()6,31241M3M51(1)(2)(3)(4)3kNm2(5)(1.8m)4(6)(7)(8)(9)(10)(11)2(1)181.0(2)(3)2m(4)(5)()(6)3()(1)1) 2) 2.5(2)1) 2) 23) ()4) (3)1) CB5725851.5m6m2) 3) 1(1)()(2)(3)(4)(2m)2m()(5)()(6)2-3(7)3m3m(8)(9)2(1)(2)(3)(4)U(5)