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Leap Consplice Exterior Beam Design

Brandon Brooks
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I have to do an exterior beam design in consplice.  I start with my interior beam and make changes to the geometry and loading.  As you would expect, in the Geometry tab I specify that this will be an exterior girder and give the distance to the face of barrier of Live Loading.  I specify that the Width(S) (beam spacing) will be 9 ft.  I user input the Effective Width as 8.125'.  The necessary dead loads are decreased since this is an exterior beam.  I run it and something strange happens.  The reactions due to component weight INCREASE when compared to the interior beam design.  If I decrease the Effective Width more, the reaction due to component weight increases more.  I'm almost 100% positive there's a bust in the program, maybe sign convention issue.  Has anyone seen anything similar?  Is there maybe something I'm missing?

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  • 0 Offline
    Brandon,
    Effective with is the width of the compression block used for ultimate capacity calculation. The effective width you enter manually can be verified in the Detailed Moment Capacity report under Flange Width. The bridge width you input is located under Distribution Factors and not related to the Effective Width. DF for LL can be verified under Truck/Lane report. As a strategy for creating your first model you can use Tutorial 2 of CONSPLICE or Tutorial 4 and modify them in order to minimize potential issues. Please make sure you are using the latest version of CONSPLICE v1.3.0.22.

     
    This is a test

  • 0 Offline in reply to Alex O [Bentley]
    Effective Width does not equal Flange Width. The Effective Width is the effective slab width carried by the beam. For an internal beam this would just be the same as the spacing between beams, but for an exterior beam it's 1/2 the beam spacing plus the width of the overhang. Thanks though.
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