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Sap2000 Plastic Hinging questions

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Phil22

Phil22

Civil/Environmental
Joined
Feb 18, 2006
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Location
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Hi forum and SAP guru out there,
I'm doing a pushover of a frame structure on SAP2000. When I ran it, SAP2000 told me that the P-M-M interaction surface is not convex.
Did I miss any step ?, and how to overcome this problem. Is there any program out there that can make the P-M-M surfacr convex?
Greatly appreciate.
Phill22
 
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