Effective Flange Width

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kronbk
Effective Flange Width

Is there a way to manually input or override the effective flange width?

Rick Brice
Effective Flange Width

There is not an option for that. What are you trying to accomplish? Perhaps there is a workaround.

kronbk
Effective Flange Width

I am trying to model a platform slab and girder system that has many openings in it and will reduce the effective flange width of the girders. Currently, I am using negative (upward) loads to model the openings, but still need to capture the impact on the effective flange width.

Rick Brice
Effective Flange Width

We don't typically have openings in highway bridge decks. I'll put this on the feature request list.

The only work around that I can think of is using an equivalent modulus of elasticity for the deck. This way you can control the modular ratio and get the composite section properties you want. When computing composite section properties, the effective flange width is multiplied by the modular ratio.

kronbk
Effective Flange Width

Great idea. Thank you!

This is an aerial station platform that is connected to the guideway for a light rail project. So it is a bit different!

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