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Working out section modulus of 2 members

Working out section modulus of 2 members

Working out section modulus of 2 members

(OP)
Hello all,

I'm after find out what the section modulus of x2 100x100x5 square hollow box sections positioned parallel to each other 600mm apart would be...
the section modulus for 1 box section is 55.9cm^3. Would it be as simple and doubling this to 111.8cm^3 ?

the two section will have bearers positioned cross them at intervals to tie them together. I need to know the section modulus so I can do a loading calc on the two box sections.

any help would me much appreciated.

RE: Working out section modulus of 2 members

According to my steel handbook, the section modulus S for one HSS102x102x4.8 is 54.2*103 mm3. In Canada, HSS100x100x5 members are not standard, so check the value in your location.

If a gravity load lies precisely half way between two HSS members attached by horizontal members , each will carry half the load. If the load is off center, one will carry more than the other.

Your question seems rather elementary for this forum.

BA

RE: Working out section modulus of 2 members

Transformed sections - in any statics book

RE: Working out section modulus of 2 members

Mike, I don't think he is talking about a transformed section. The two HSS members are side by side, separated by 600 mm unless I didn't understand the question.

BA

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