Overturning moment and Resisting Moment

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Gholamreza
Posts: 84
Joined: Tue Nov 07, 2017 7:47 am
Location: University of Central Florida

Overturning moment and Resisting Moment

Post by Gholamreza » Fri Mar 05, 2021 7:00 am

Hello Engineers,

I have modeled 20-story-5bays building with core wall. I'd like to calculate 1. Overturning moment and 2. Resisting Moment in Opensees?

1. Overturning moment:

Should I calculate the shear of each floor (sum of shear forces in all columns in each story) x (distance from the base) ?

2. Resisting Moment

Only (axial force of culumns at base level)*(distance from a point at base level) ?

selimgunay
Posts: 889
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Overturning moment and Resisting Moment

Post by selimgunay » Sat Mar 13, 2021 7:53 am

For the resisting moment, you should also consider the moments at the bottom of the columns. From equilibrium, overturning moment should be equal to the resisting moment

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