
How can I know the building Sway or Non Sway !!!!! For ACI ( 318-19) : made 2 conditions 1) The increase in column end moments due to second order effects does not exceed 5 percent of the first-order end moments 2) The stability index for a story Q= Σ Pu* ∆ / Vu* L where ∑Pu and Vu are the total factored vertical load and horizontal story shear.... ∆ is the first-order relative lateral deflection between the top and the bottom of that story due to Vu...... Q (not exceed 0.05) We are practically performing a verification on number 2 in ETABS (IF Q more than .05 We classified this building Non Sway) ⬛ ETABS 🔺 PU From Result ...Story forces by Load combo ( 1.2 DL + .5 L.L ) not 1.6 LL because we have EQ 🔺 VU and ∆ ( It is intended to use dynamic analysis but because force from static analysis more than dynamic , some places prefer to verify using static analysis 🔺 L height of floor
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