Page 347 - 捷運技術 第28期

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fb=0.55Fy fb

Fb =0.55Fy

Here:
bf = cm
tf = cm
2
Fy = kg/cm
bf/tf 60
bf/tf 45

3
Is= t w
f f
Here:
bf = cm tf = cm
2
Fy = kg/cm nfl =
hsl = cm tsl = cm