Different Void Sizes In the Same Beam

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Cole Smith
Different Void Sizes In the Same Beam

I am trying to model a 21" Deep precast prestressed voided slab that has 3 voids. The two exterior voids are 12" diameter, and the middle void is 10" in diameter. I was wondering how to change the void size of the center void? When I input void size/quantity, the program only gives me the option to use a single void size.

The "Voided Slab (WSDOT)"

The "Voided Slab (WSDOT)" girder shape should do the trick for you. It allows different sized exterior and interior round voids. If the shape is not exactly what you want, BridgeSight can customize a shape to meet your needs.

Richard Pickings, P.E.
BridgeSight Inc.

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