LBC Prestressed Girder Horizontal Shear

Question

In LBC, prestressed girder, the horizontal shear report has all zeros under Avh_rg and they are red. Everything else seems to check out, Avh_provided is greater than Avh_min, and we do have an intentionally roughened girder so I don't even look at Avh_sm. But because the numbers are red, it looks like something doesn't check out. Is there actually an issue that I am missing, or is this just a quirk of the program?

Vinay mysore · Accepted Answer

The program is calculating the Avh-rg value based on the highlighted equation .

The Avh-rg values calculated from your file are negative. 
 When the values are Negative or Less than 0 ( < 0 ) then the program shows 0 value in the output table. 
 Or if the Avh-rg value is >= 0 then final Positive value or 0 should be shown in the output table 
 Please check the related Bentley Communities link for more information. 
 https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/51273/nomenclature----horizontal-shear

Vinay mysore · Answer

Also a bug/Defect has been raised in our system to get rid of the red flag and there will be changes done to output table in the future versions.

LBC Prestressed Girder Horizontal Shear

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