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Wind load calculation for pyramid shape space structure

 
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smtenr
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Joined: 23 Jan 2012
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PostPosted: Sat Dec 10, 2022 8:20 am    Post subject: Wind load calculation for pyramid shape space structure Reply with quote
Dear members,
I am designing a pyramid shape space frame structure,
For wind load calculation which clause and table shall I use for pressure coefficient from  IS875  Part3
Ashish
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vikram.jeet
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Joined: 26 Jan 2003
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PostPosted: Sun Dec 11, 2022 9:36 am    Post subject: Reply with quote
Pyramid type str :
Since pyramid str cladding is wall as well as roof
External pr coeffs -  Higher  effects to be taken by working out from - - table 5 values on projected vertical area and Table 6 values on projected plan atea  ,,  I think  .

Hope some other members may further clarify.



Internal pr coff - ( + & - )O. 2p /O.5p /O.7pas per opening%
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smtenr
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PostPosted: Mon Dec 12, 2022 2:42 am    Post subject: Wind load calculation for pyramid space frame Reply with quote
vikram.jeet wrote:
Pyramid type str :
Since pyramid str cladding is wall as well as roof
External pr coeffs -  Higher  effects to be taken by working out from - - table 5 values on projected vertical area and Table 6 values on projected plan atea  ,,  I think  .

Hope some other members may further clarify.



Internal pr coff - ( + & - )O. 2p /O.5p /O.7pas per opening%

Thank you , Vikram sir,
As it is a open structure with no wall and cladding
I internal press. Coefficient. +/-0.7  , I used
Thanks for guiding me on ext. Pressure coefficient.

Ashish
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vikram.jeet
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PostPosted: Wed Dec 14, 2022 2:46 am    Post subject: Reply with quote
vikram.jeet wrote:
Pyramid type str :
Since pyramid str cladding is wall as well as roof
External pr coeffs -  Higher  effects to be taken by working out from - - table 5 values on projected vertical area and Table 6 values on projected plan atea  ,,  I think  .

Hope some other members may further clarify.



Internal pr coff - ( + & - )O. 2p /O.5p /O.7pas per opening%




CORRECTION IN ABOVE POST :

EXTERNAL PR COEFFICIENT - TO BE TAKEN CUMULATIVE EFFECT OF TABLE 5 ON PROJECTED VERTICAL AREA +  TABLE 6 PROJECTED PLAN AREA

SORRY FOR INCONVENIENCE
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