Direction of records apply

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engnomran
Posts: 55
Joined: Fri Jul 04, 2014 9:57 pm
Location: International Institute of Earthquake Engineering and Seismology(IIEES)

Direction of records apply

Post by engnomran »

Hello every body
I model a bridge and do analyze of time history.
I have got a question about direction of records apply(apply angle).
I want that records apply in angles of 5 and 10 and 20 and 30 degree to my model.
How can I apply direction of records? which one command??
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fmk
Site Admin
Posts: 5884
Joined: Fri Jun 11, 2004 2:33 pm
Location: UC Berkeley
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Re: Direction of records apply

Post by fmk »

your only option is to either rotate the model or rotate the records.
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engnomran
Posts: 55
Joined: Fri Jul 04, 2014 9:57 pm
Location: International Institute of Earthquake Engineering and Seismology(IIEES)

Re: Direction of records apply

Post by engnomran »

I know that how rotate the model by rotate axes but how can I rotate the records???? which one command??
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Rain
Posts: 10
Joined: Sun Jan 11, 2015 5:50 am

Re: Direction of records apply

Post by Rain »

You may decompose the records into two perpendicular directions by cos and sin.
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engnomran
Posts: 55
Joined: Fri Jul 04, 2014 9:57 pm
Location: International Institute of Earthquake Engineering and Seismology(IIEES)

Re: Direction of records apply

Post by engnomran »

Can you send for me one example with explain ????
Thank you
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