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krishnaveni SEFI Member
Joined: 19 Jul 2013 Posts: 9
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Posted: Fri Oct 09, 2015 10:35 am Post subject: how to decide on members |
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Dear all ,
While designing a steel structure (industrial structure) , how to decide what members need to be placed in a particular location. Especially with respect to bracings. Kindly guide me in general principles of steel structure. |
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mtamil General Sponsor
Joined: 07 Apr 2011 Posts: 187
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Posted: Sat Nov 07, 2015 6:40 pm Post subject: |
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Hi Krishnaveni,
Provide more details about the structure.
Regards
Tamil |
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aditya2988 SEFI Member
Joined: 05 Mar 2011 Posts: 10
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Posted: Sun Nov 08, 2015 5:53 pm Post subject: Sizing of Steel Members |
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Dear Sir,
A common method with I usually adopt for member sizing is by load.
We know that c/s area required can be calculated by dividing load by stress.
Provide a member initially as per axial load and you can iterate it later.
If any senior member has any other method pls share.
Regards.
Aditya Rajan Deshmukh. |
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N. Prabhakar General Sponsor
Joined: 25 Apr 2009 Posts: 474
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Posted: Tue Nov 10, 2015 6:51 am Post subject: |
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Dear Er. Krishnaveni,
If it is a cross bracing (i.e. diagonal bracing), the bracing is normally designed for axial tensile load only in which case the size of the member is governed by the cross-sectional area and the permissible stress.
In the case of single member bracing, the member may be subjected to axial load of compression or tension, depending on the direction of lateral load acting on the frame, which could be reversible. The bracing member would be more critical for the compression load case for which the size of the member is governed by effective length, slenderness ratio, besides cross-sectional area.
With best wishes,
N. Prabhakar
Chartered Structural Engineer
Vasai (E) |
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