SeanMD
Structural
- Jun 17, 2005
- 53
I am working on an existing structure with some single angle columns, built in 1955, and am working to make it meet the 2003 IBC code requirements. I am aware of the method used in the 1989 ASD specification and the article from 1991 AISC Engineering Journal showing how to calculate the compressive capacity of angles that are loaded at the legs. Using this method it shows the angles are seriously overstressed, although they have been in use for 50 years with no problems. A coworker commented and said the AISC ASD method for calculating capacity is a very conservative method. He mentioned that ASCE has a design guide for transmission towers that lists ASD capacity tables or a less conservative method for single angles in compression. Has anyone used this and does anyone know which publication this is?
Thanks.
Thanks.