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结构力学章节习题及参考答?- 百度文库

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1 ۣϰ⣩ 2 ƽϵĻϰ

ϰ2.1 Ƿж

(1) ƽϵʵɶΪ㣬ϵһΪβϵ( )

(2) ƽϵļɶW=0ϵһΪ޶Լļβϵ( ) (3) ƽϵļɶW0ϵΪжԼļβϵ( ) (4) Ƭɼβϵ޶Լ( )

(5) ϰ2.1(5) ͼʾϵȥԪCEFʣಿΪ֧ռܣԭϵΪ޶Լļβϵ( )

AC

EBDF ϰ 2.1(5)ͼ

(6) ϰ2.1(6)(a)ͼʾϵȥԪABC󣬳Ϊϰ2.1(6) (b)ͼԭϵǼοɱϵ( )

(7) ϰ2.1(6)(a)ͼʾϵȥԪEDF󣬳Ϊϰ2.1(6) (c)ͼԭϵǼοɱϵ( )

BEDA(a)FC(b)(c)

ϰ 2.1(6)ͼ

ϰ2.2

(1) ϰ2.2(1)ͼʾϵΪ_________ϵ

ϰ2.2(1)ͼ

(2) ϰ2.2(2)ͼʾϵΪ__________ϵ

ϰ 2-2(2)ͼ

(3) ϰ2.2(3)ͼʾ4ϵĶԼĿֱΪ___________________________________

ϰ 2.2(3)ͼ

(4) ϰ2.2(4)ͼʾϵĶԼΪ___________

ϰ 2.2(4)ͼ

(5) ϰ2.2(5)ͼʾϵĶԼΪ___________

ϰ 2.2(5)ͼ

(6) ϰ2.2(6)ͼʾϵΪ_________ϵ_________Լ

ϰ 2.2(6)ͼ

(7) ϰ2.2(7)ͼʾϵΪ_________ϵ_________Լ

ϰ 2.2(7)ͼ

ϰ2.3 ϰ2.3ͼʾϵмɷ

(a)(b)

(c)(d)(e)(f)

ϰ2.3ͼ

(h)(g)3 뾲ռϰ

ϰ3.1 Ƿж

(1) ʹͼij˶εͼʱø˶˵Ķء

(j)(i)

(2) εӷͼĻƣڼͼĻơ (3) 羲ڸʱػֵ (4) ϰ3.1(4)ͼʾ羲УCDEEF־Ϊ֡

ABCDEF (k)ϰ3.1(4)ͼ

(l)ϰ3.2

(1)ϰ3.2(1)ͼʾܺɵĶ羲䶨ϵCݵMCĴСΪ______BشСΪ__________

FPABClllllFPFPDFPE

ϰ3.2(1)ͼ

(2) ϰ3.2(2)ͼʾµ۸ռܣMAB=______kNm____BMB=______kNm____

C4kN/mB6kN/mDA6m4m4m

ϰ3.2(2)ͼ

ϰ3.3 ϰ3.3ͼʾ羲MͼFQͼ

AC2m4m20kN/mD2mBAaFPaCaFPaFP2B

FPBEa(a) (b)

qAFPFPDaaAlBl/2CaC

(c) (d)

qAaBaqaqa2C

5kN/mC2mA20kNmD2m2mB10kNmE2m

(e) (f)

ϰ3.3ͼ

ϰ3.4 ϰ3.4ͼʾ羲ͼ

4kN/mE2mA2m6kN12kNmC3mD2mB

ϰ3.4ͼ

(c)

ϰ3.5 ϰ3.5ͼʾбͼ

5kN/mBCA4m2m3m

ϰ3.5ͼ

ϰ3.6 ϰ3.6ͼʾͼ

6kND2m2kN/mA3mE3m(a)

B3mC

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