Good Day,
I have attempted the direct analysis method on a steel structure I have to design, however I have the following queries as it relates to the effect tension only members will have on the analysis (the structure has tension rods in the form of X bracing at one side of the building). I have received the following warning and I would like to find out the effect they have on my analysis:
1:**WARNING: TENSION/COMPRESSION SPECIFIED WITH PDELTA KG OR
DIRECT ANALYSIS. SO TENSION/COMPRESSION IS SWITCHED OFF.
2.**WARNING: DIRECT OR PDELTA KG ANALYSIS REQUESTED.
SO TENSION/COMPRESSION ANALYSIS IS NOT ALLOWED.
After I ran my analysis I also realized that my tension members also have compression forces as well, which is quite strange. Any help with these issues would be highly appreciate.
Thanks.