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Discontinuous mode shapes and missing z-rotation modes

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Dominic_Choi

Civil/Environmental
Nov 25, 2021
1
HK
Hi all,

Attached is the mode shapes of my building. Why some of the normalized mode highly discontinuous (in the second figure where the value of z-rotation times 211111)? Also, when z-rotation times the regular eccentricity, the z rotation almost equal to zero. However, my building has two eccentric concrete cores. why lol? Thank you so much for your kindly help in advance. Have a good day :)



model_gjvjrb.jpg
z-rotation21111_mk4v1s.jpg
z-rotation_times_eccentricity_igkg4y.jpg
 
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