help How to analyze (quasi-static method) a cross bracing in Abaqus....
help How to analyze (quasi-static method) a cross bracing in Abaqus....
(OP)
Hi
I have a very important question about Abaqus, I wanted a quasi-static method to analyze the cross bracing(Two-dimensional).
The loading protocol consisted of 6 cycles at 0.375%,0.50%, and 0.75% drift, followed by four cycles of 1% drift, and finished with two cycles of 1.5%, 2%, 3%, and 4% drift. The drift angle was selected as the governing parameter for this protocol. The load was applied in a quasi-static manner, at a rate of 51 mm (2.0 in.) per minute.
My question that What step should I do with this analysis and How do I introduce drift and cycles in the abaqus? I also have two different Figures of the time history,Which Figure should I introduce in abaqus?what Mean is "time(step)" in this figure?How can I convert "time(step)" to the time in seconds ?
thanks
max
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I have a very important question about Abaqus, I wanted a quasi-static method to analyze the cross bracing(Two-dimensional).
The loading protocol consisted of 6 cycles at 0.375%,0.50%, and 0.75% drift, followed by four cycles of 1% drift, and finished with two cycles of 1.5%, 2%, 3%, and 4% drift. The drift angle was selected as the governing parameter for this protocol. The load was applied in a quasi-static manner, at a rate of 51 mm (2.0 in.) per minute.
My question that What step should I do with this analysis and How do I introduce drift and cycles in the abaqus? I also have two different Figures of the time history,Which Figure should I introduce in abaqus?what Mean is "time(step)" in this figure?How can I convert "time(step)" to the time in seconds ?
thanks
max
http://files.engineering.com/getfile.aspx?folder=a...
http://files.engineering.com/getfile.aspx?folder=0...





RE: help How to analyze (quasi-static method) a cross bracing in Abaqus....
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083
RE: help How to analyze (quasi-static method) a cross bracing in Abaqus....
6 cycle or 4 cycle and..of loading relate to ghraf-1 and is displacement controlled loading. Drift is the deflection of the wall at story (i) minus the deflection of the wall at story (i-1), divided by the height of the wall at story i.
(Δi - Δi-1)/hi
This is commonly expressed as a fraction of the span (h), such as 1/400*span, or as the drift angle,
arctan((Δi - Δi-1)/hi)
ghraf-2 show the Actuator displacement time history and ghraf-1 show The SAC loading protocol. my outputs are drift,displacment,base shear cable force,strain,stress...
My question that What step should I do with this analysis,static or direct cycle or ...which? How do I introduce drift and cycles in the amplitude abaqus? according to ghraf-2, How can I convert "time(step)" to the time in seconds ?
thanks
RE: help How to analyze (quasi-static method) a cross bracing in Abaqus....
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083