Wind Load in ETABS
Current time: 04-24-2018, 03:52 AM
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Author: techno
Last Post: zipatton
Replies 5
Views 5541

Wind Load in ETABS
#1
can anyone explain how to assign wind load on structure in ETABS using the diaphragm concept?
#2
You must assign rigid diaphragm to floor (area/joint) by use assign diaphragm
When you assign load case, select wind load type and you can select auto standard such as ASCE7-05 it will automatically applied load to diaphragm.
Also you can choose user define in wind load case to assign the value of wind load to each floor diaphragm in term of table.
[-] The following 1 user says Thank You to nuttapolk for this post:
  • narendra
#3
Dear nuttapolk,

1. select all slab elements, then assign diaphragm.
2. define wind load case such as windx and windy.
3. define load combination.

Is that as simple as this? Really appreciate.

[-] The following 2 users say Thank You to techno for this post:
  • ISTRAKTURA, narendra
#4
Hi,

It is not necessary to fill the outside walls of the model. Etabs takes the surface wind pressure as the distance between the floor diaphragm. It means that even you don't get walls in te model, the surface pressure will be calculate on the virtual walls. It is very powerful for structural models.

Best regards

Zipatt
[-] The following 2 users say Thank You to zipatton for this post:
  • concreteok, narendra
#5
Dear zipatton,

in my model, it consists of walls itself only. very less beam and column.
So, what's ur opinion?
[-] The following 1 user says Thank You to jameschan for this post:
  • narendra
#6
No problem,

You can get the surface you want in the table of "load pattern" of wine and then make all the amenagement you want. So if you have walls it is OK. The problem is when you do not get walls (openings buildings). And then, you use the load pattern table.
Please read carefully the manual called "latearal load", chapter 2. It is well explained (as usual with CSI).

Hope it is hlepful for you.
Best regards

Zipatton
[-] The following 1 user says Thank You to zipatton for this post:
  • narendra


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