Calculation of a Numerical Application for Exercise N°3 TD N°4, Study notes of Construction

The calculations for a numerical application related to an exercise in td n°4. The replacement of lengths with q and constraints with k, and the final result is given in ounces. The calculations involve the use of pi, constants, and exponents.

Typology: Study notes

2020/2021

Uploaded on 05/15/2021

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Application numérique de 𝑴𝒄𝒓 de lexercice N°3 TD N°4 (travée en console)
𝑀𝑐𝑟 =𝐶1𝜋2 𝐸 𝐼𝑧
(𝑘𝑧 𝐿2)2[(𝑘𝑧
𝑘𝑤)𝐼𝑤
𝐼𝑧+(𝑘𝑧 𝐿2)2 𝐺 𝐼𝑡
𝜋2 𝐸 𝐼𝑧+(𝐶2 𝑧𝑔)2(𝐶2 𝑧𝑔)]
Jai remplacé toutes les longueurs en 𝑚 et toutes les contraintes en 𝑘𝑁/𝑚2.
𝐶1𝜋2 𝐸 𝐼𝑧
(𝑘𝑧 𝐿2)2=1,28𝜋2(210106)(1317,8210−8)
(2 0,5)2=34961,1 𝑘𝑁
(𝑘𝑧
𝑘𝑤)𝐼𝑤
𝐼𝑧=(2
1)492147,31012
1317,8210−8 =0,07469 𝑚2
(𝑘𝑧 𝐿2)2 𝐺 𝐼𝑡
𝜋2 𝐸 𝐼𝑧=(2 0,5)2(80106)(51,3310−8)
𝜋2(210106)(1317,8210−8)=0,0015 𝑚2
𝐶2 𝑧𝑔=−0,086 𝑚
(𝐶2 𝑧𝑔)2=0,0074 𝑚2
[(𝑘𝑧
𝑘𝑤)𝐼𝑤
𝐼𝑧+(𝑘𝑧 𝐿2)2 𝐺 𝐼𝑡
𝜋2 𝐸 𝐼𝑧+(𝐶2 𝑧𝑔)2(𝐶2 𝑧𝑔)]
=[0,07469 + 0,0015+0,0074(−0,086)]=0,375119 𝑚
𝑀𝑐𝑟 =34961,10,375119=13114,57 𝑘𝑁.𝑚
Le résultat de la correction est plus précis 𝑀𝑐𝑟 =13114,6198 𝑘𝑁.𝑚

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Application numérique de 𝑴𝒄𝒓 de l’exercice N°3 TD N°4 (travée en console)

𝜋^2 𝐸 𝐼𝑧

(𝑘𝑧 𝐿 2 )^2 [√(

𝑘𝑤^ )

𝐼𝑧^ +

(𝑘𝑧 𝐿 2 )^2 𝐺 𝐼𝑡

𝜋^2 𝐸 𝐼𝑧^ + (𝐶^2 𝑧𝑔)

2 𝑧𝑔)]

J’ai remplacé toutes les longueurs en 𝑚 et toutes les contraintes en 𝑘𝑁/𝑚^2.

𝜋^2 𝐸 𝐼𝑧

(𝑘𝑧 𝐿 2 )^2 = 1,

𝜋^2 ∗ (210 ∗ 10^6 ) ∗ (1317,82 ∗ 10−8)

(2 ∗ 0,5)^2 = 34961,1 𝑘𝑁

𝑘𝑤^ )

𝐼𝑧^ = (

1317,82 ∗ 10−8^ = 0,07469 𝑚

2

(𝑘𝑧 𝐿 2 )^2 𝐺 𝐼𝑡

𝜋^2 𝐸 𝐼𝑧^ =

(2 ∗ 0,5)^2 ∗ (80 ∗ 10^6 ) ∗ (51,33 ∗ 10−8)

𝜋^2 ∗ (210 ∗ 10^6 ) ∗ (1317,82 ∗ 10−8)^ = 0,0015 𝑚

2

(𝐶 2 𝑧𝑔)^2 = 0,0074 𝑚^2

[√(

𝑘𝑤^ )

𝐼𝑧^ +

(𝑘𝑧 𝐿 2 )^2 𝐺 𝐼𝑡

𝜋^2 𝐸 𝐼𝑧^ + (𝐶^2 𝑧𝑔)

2 𝑧𝑔)]

= [√0,07469 + 0,0015 + 0,0074 − (−0,086)] = 0,375119 𝑚

 Le résultat de la correction est plus précis 𝑀𝑐𝑟 = 13114,6198 𝑘𝑁. 𝑚