Dear Sir,

We are facing problems evaluating Vortex Shedding. One of our column is coming under vortex shedding. The report and the PV-Elite file are attached for your reference. Below are our queries:

Page 48:
1) The shear force as calculated above doesnot consider the effect of operating wind and is purely based on Vortex Shedding.
And the same shear force (vortex case) is used to calculate moment (page 52).
Please clarify the same.

Page 52:
1) The wind shear for operating + vortex case is same as those of operating case. It does not take effect of vortex shedding as is tabulated on page 48.

2) The moment as calculated for operating + vortex case are difficult to evaluate. Please provide us the basis (or the basic calculation) that PV-Elite follows to arrive at these values. Also note that the calculation by Kanti K. Mahajan doesnot show how to calculate the moment.

We request you to provide suitable reply to the above.
Email: dtrivedi@ltcis.ltindia.com
ntrivedi@ltcis.ltindia.com