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Question
what is meant by diaphragm in civil engineering?
why we use it in studying resistance of seismic forces?

Answer
Hello Emad,

Diaphragms have an important role when it comes to resisting forces due to seismic forces. It is said that the various diaphragms have performed satisfactorily when induced by natural hazards. Below is a link which gives you an in-depth analysis of the role of diaphrams of:

- Roofs
- Walls
- Floors

http://www.fpl.fs.fed.us/documnts/pdf1984/falk84a.pdf

Also, another useful link explaining the differences between flexible and rigid diaphrams and their responses in seismic conditions and other valuable information:

http://books.google.com.au/books?id=MJ_KHuRUYkMC&pg=PT798&lpg=PT798&dq=what+is+a...

I hope this has helped answer your question.


Warm Regards,
Jeanette

Civil Engineering

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Jeanette A

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Willing to answer all civil engineering-related questions through the undergraduate level. I will explain unclear concepts and suggest approaches to solving problems, but would prefer not to completely solve homework problems for you. If you are completely stumped on homework/assignment I will do my best to try and guide you in the right direction. Also willing to give advice on issues not related to study although related to civil engineering.

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I have been studying for 5 years in Civil Engineering and have a sound knowledge of various civil engineering subjects. I have also worked as a consultant in the Roads and Highways Department for Sinclair Knight Merz (SKM).

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Undergraduate Bachelor of Civil Engineering and Diploma in Engineering Practice, University of Technology Sydney, NSW

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