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niroshkumar1994@gmail.com SEFI Member


Joined: 13 Sep 2016 Posts: 2
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Posted: Thu Oct 31, 2019 10:26 am Post subject: PLEASE CLARIFY THE CROSS WIND FORCE CALCULATION IN DYNAMIC WIND LOADING IS 875-2015 |
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Dear SEFI'ans,
I am working in high rise building comprising 70 meter height from ground.The plan dimensions are (70m x 165m). With reference to the IS 875-2015 part-3, The dynamic wind load has been calculated for the along wind direction as per clause 10.2. As per clause 10.3 the across wind force has to be calculated.
While doing so, the Across wind force spectrum coefficient (Cfs) has been limited to the Square or rectangular shaped building with height to breadth to depth ratios of (6:2:1) .
In the clause 10.3 beginning itself, they had mentioned about the across wind need not to be done for lattice structure. My case does not follows the aforementioned ratio.
Does across wind force need to be calculated or it can be relaxed. If it is so, please attach the reference document justifying the same.
Thanks and regards,
Niroshkumar Karunamoorthy,
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