vd1phần tính toán

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<b> =</b>

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<i>Tính các thông số:</i>

<i><b>f's = f<small>y </small>=2600kg/cm2</b></i> <b>C<small>c</small></b><i><b> = 0.85f'c*(0.85c)*b =</b></i> <b>0.85*149.5*(0.85*32.093)*35</b>

<b> =</b>

<b>121,327</b> KG

<b>3. Uốn thuần túy</b>

= 𝟏𝟐𝟏, 𝟑𝟐𝟕 ^𝟓𝟎𝟐 ⁻

𝟎. 𝟖𝟓 ∗ 𝟑𝟐. 𝟎𝟗𝟑

𝟐 ^{+ 𝟑𝟐, 𝟔𝟕𝟑}𝟓𝟎

𝟐 ^{− 𝟒 + 𝟑𝟐, 𝟔𝟕𝟑} ^{𝟓𝟎 − 𝟒 −}𝟓𝟎

 

 

 =

<i>hC</i>

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Ta có : <i>T = As*fy=</i> <b>32,673</b> <small>KG</small>

<b> =</b>

<b>32,673*((50-4)-7.3/2)</b>

<b> = </b>

<b>1,383,702 KGcm</b>

<b> = </b>

<b>13.84 Tm</b>

<i><b>Do chiu uốn nên </b></i>f<i><b> =</b></i>

<b>0.9</b>

<b>12.45</b> <small>Tm</small>

<b>Mu = </b>f<b>Mn =</b>

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