# Method for calculating the scantling of Tee-Section?

Discussion in 'Boat Design' started by Jo Ho, May 23, 2021.

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### Jo HoNew Member

Does anyone know a method for calculating the scantling of Tee-Section?
I have calculated the design pressure and the section modulus of the girder.
What is the next step?

2. Joined: Oct 2008
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Welcome to the forum Jo Jo

Are you a student?

3. Joined: May 2021
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### Jo HoNew Member

my pleasure,
yes I am a student.

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### Mr EfficiencySenior Member

No text books ?

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Have you studied structural design and second moment of inertia calculations of shapes?

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### TANSLSenior Member

You have probably used a certain rulebook to calculate the right pressure. Well, that same regulation will have a formula to define the minimum admissible value of the elastic section modulus of the girder. And don't forget to include the stiffener's attached plate when calculating that modulus.

Last edited: May 24, 2021
jehardiman likes this.
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### gonzoSenior Member

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### jehardimanSenior Member

And just for info, if you are not using a set of rules, a typical accepted value for effective plating flange width is 20 times the plating thickness.

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