On 12:04 I dont get it,.. What the meaning of "0 to h, h to 2h, and > 2h". what I know i the letter h is elevation, but why in that video, h is defined as wind pressure based on length of building
Brother, you are right, "h" is the mean roof elevation, but when wind is blowing in the said direction, then entire length of the building will not experience same pressure, rather, the intensity of the pressure reduces region wise. so 0 to h, h to 2h and > 2h are the lengths of those regions of the roof from the windward wall.
hi, i think the velocity pressure calculated is wrong. Looks like you used wind velocity (V=130mph) from previous videos. But other than that, helpful👍
Thanks for appreciation.. For theta less than 10.. There will be no effect of gable roof.. It will be considered as flat roof (no windward and leeward portion of roof,, see lower portion of Figure 27.3-1)
@@analysisdesignstudio3363 Same question here, based on ASCE 7-16 Chapter 27.1.5 Minimum Design Wind Loads. "The wind load to be used in the design of the MWFRS for an enclosed or partially enclosed building shall not be less than 16 lb∕ ft2 (0.77 kN∕m2) multiplied by the wall area of the building, and 8 lb∕ ft2 (0.38 kN∕m2) multiplied by the roof area of the building projected onto a vertical plane normal to the assumed wind direction. Wall and roof loads shall be applied simultaneously. The design wind force for open buildings shall be not less than 16 lb∕ ft2 (0.77 kN∕m2) multiplied by the area, Af ." A bit confused about this term, do you have any idea? Thanks
Thank you for video, very helpful and best video for wind load calculation. There is one question i have to ask ...Determination of external pressure coefficient, for wind direction W-E or E-W , L/B should be 85/40. because L is the horizontal dimension of building parallel to wind direction. Please make me correct if i am wrong. Regards
Thanks brother for the appreciation. Dear, these video are just for the concept clarification of the wind load calculation and mechanism for different structural shape building. you can correct the numerical mistakes by your own. Thanks for specify.
Dear, these video are just for the concept clarification of the wind load calculation and mechanism for different structural shape building. you can correct the numerical mistakes by your own. Thanks for specify.
thanks, waiting for the next videos
For roof pressure coefficients , if 1>h/L>0.5 what should i do ? Do I just use 2 values there are "0 to h/2" and "h/2 to h " right ?
Good working
On 12:04 I dont get it,.. What the meaning of "0 to h, h to 2h, and > 2h". what I know i the letter h is elevation, but why in that video, h is defined as wind pressure based on length of building
Brother, you are right, "h" is the mean roof elevation, but when wind is blowing in the said direction, then entire length of the building will not experience same pressure, rather, the intensity of the pressure reduces region wise. so 0 to h, h to 2h and > 2h are the lengths of those regions of the roof from the windward wall.
@@analysisdesignstudio3363 Ohh I see, I get it now, thank you, and I have subscribe your channel and hoping your next videos
@@dinarwahyu4790 thanks. keep watching keep learning and keep sharing.
Hi, i think at 2:25min , the value of qh=52.36 psf
Right
Yes. Its calculation mistake. Thanks for notify. But you can just take advantage of the concept and methodology shown...
Thank you for the example, but can you please verify that the qz computed at the beginning of the video is ASD, and that the wind speed is ULT?
All loads are service loads .. Need to combine using load combos either ASD or LRFD....
Is this directional procedure or envelope procedure sir ?
Directional procedure
hi, i think the velocity pressure calculated is wrong. Looks like you used wind velocity (V=130mph) from previous videos. But other than that, helpful👍
Yes that's the mistake.. Thanks for highlighting.. And Appreciation...
Very helpful. Could you do an example if theta is less than 10 degrees?
Thanks for appreciation.. For theta less than 10.. There will be no effect of gable roof.. It will be considered as flat roof (no windward and leeward portion of roof,, see lower portion of Figure 27.3-1)
It would be helpful to keep the cardinal directions throughout the video for reference purposes. thanks.
In all the parts (1 to 3) i have used cardinal axes to demonstrate.
sir how about the minimum wind load according to ASCE 7-16?
What do you mean please elaborate??
@@analysisdesignstudio3363 Same question here, based on ASCE 7-16 Chapter 27.1.5 Minimum Design Wind Loads.
"The wind load to be used in the design of the MWFRS for an enclosed or partially enclosed building shall not be less than 16 lb∕ ft2 (0.77 kN∕m2) multiplied by the wall area of the building, and 8 lb∕ ft2 (0.38 kN∕m2) multiplied by the roof area of the building projected onto a vertical plane normal to the assumed wind direction. Wall and roof loads shall be applied simultaneously. The design wind force for open buildings shall be not less than 16 lb∕ ft2 (0.77 kN∕m2) multiplied by the area, Af ."
A bit confused about this term, do you have any idea? Thanks
@@jessicagitomarsono3836 ok I got the point... These minimum loads are given for quick preliminary sizing of the members..
Their is a table showing 4 losd cases Plx Ply. How tou combine these cases in that load cases.
Sorry, I did not get your point.
@@analysisdesignstudio3363 There are 4 load cases as shown. Please check table.
@@saliktramboo8333 please share table number.
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Thanks for Appreciation. Keep watching and sharing. ❤️
Thank you for video, very helpful and best video for wind load calculation. There is one question i have to ask ...Determination of external pressure coefficient, for wind direction W-E or E-W , L/B should be 85/40. because L is the horizontal dimension of building parallel to wind direction. Please make me correct if i am wrong. Regards
Thanks brother for the appreciation. Dear, these video are just for the concept clarification of the wind load calculation and mechanism for different structural shape building. you can correct the numerical mistakes by your own. Thanks for specify.
E
The wind directions used do not correspond to your values used for L and B. Also the values shown for velocity pressure, qz & qh, are incorrect.
Dear, these video are just for the concept clarification of the wind load calculation and mechanism for different structural shape building. you can correct the numerical mistakes by your own. Thanks for specify.