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Deflection According to Pascal's Trianglefinnish_translation.jpg

Pascalin kolmion mukainen taipuma

Foucault_pendulum.jpgThis concept involves using Pascal's Triangle to determine the bending moments in beams subjected to various loading conditions. The mathematical second pendulum has the length of 99,5 cm. For the same purpose, we choose the HEB 100 beam length as 99.5 cm and the load in the middle as 1 kN.

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1.00 - 1.03 - 1.06 - 1.12

99.5 x 1.03 = 103 cm

Deflection of the girder weight                  Deflection of the concentrated force

f = deflection                                                     f = deflection

f = 5 x F x L3 / 384 x E x  I                                f =  F x L3 / 48 x I x E

f = 0.00032 cm                                                  f = 0.00246 cm

E= 20600 kN/cm2           Ix = 450 cm4

Total deflection

0,00273 cm                    => 0,00273/ 0,00249 = 1,0962 = 1,1

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99.5 x 1.06 = 105.5 cm

Deflection of the girder weight                  Deflection of the concentrated force

f = deflection                                                     f = deflection

f = 5 x F x L3 / 384 x E x  I                                f = F x L3 / 48 x I x E

f = 0.00035 cm                                                  f = 0.00264 cm

Total deflection
0,00298 cm                => 0.00298/ 0.00249 = 1.19876 = 1.21

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99.5 x 1.09 = 108.5 cm

Deflection of the girder weight                  Deflection of the concentrated force

f = deflection                                                     f = deflection

f = 5 x F x L3 / 384 x E x  I                                f = F x L3 / 48 x I x E

f = 0.00039 cm                                                  f = 0.00287 cm

Total deflection

0.00326 cm                    => 0.00326/ 0.00249 = 1.30776 = 1.331

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99.5 x 1.12 = 111.5 cm

Deflection of the girder weight                 Deflection of the concentrated force

f = deflection                                                    f = deflection

f = 5 x F x L3 / 384 x E x  I                               f = F x L3 / 48 x I x E

f = 0.00043 cm                                                 f = 0.00311 cm

Total deflection

0.00354 cm                    => 0.00354/ 0,00249 = 1.4234  = 1.4641

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1.03  =>  1.1(2)           1.03(28)3 = 1.12

1.06  =>  1.21              1.03(28)6 = 1.21

1.09  =>  1.331            1.03(28)9 = 1.331

1.12  =>  1.4641          1.03(28)12 = 1.4729

Later, we can combine the above in a greater whole.

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21.6.2018*08:00 (36628 - 824)
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