Tie force (can it be greater than shear force)?

[ajay__re]

Can tie force calculated using the formula from EC 1991-1-7 be greater than shear force? Is it stated somewhere in the codebook that the tie force should be lower than or equal to tie force?

-Thanks

 

[HTURKAK]

Dear ajay__re (Structural),


EC 1993-1-7 is for Strength and stability of planar plated structures subject to out of plane loading..
Not sure for the which formula stated in EC 1993-1-7..
Will you pls be more specific?

 

[ajay__re]

Apologies. It was supposed be to EC 1991-1-7 in my post. I have corrected it now. Also attached is a screenshot of formula from codebook

 

[HTURKAK]

Dear ajay__re (Structural),

I could not look to your post yesterday...

You know EC 1991-1-7 is for Accidental actions and the subject formula is at annex A ; Design for consequences of localised failure in buildings from an unspecified cause and ANNEX A is not normative..

I have copy and pasted the formulas below,

Notice that the design tension force is some portion of gravity loading ( 0.8 for internal ties) and the design tie force( Ti )
calculated using the above would be greater than the shear force..

there are worked examples for Ti calculation at annex A..

If this a real question, you may post some sketches to get numerical responds..

 

[MIStructE_IRE]

If shear force is say 10kN, and the minimum tie force is 75kN, then the tie force is greater than the shear force.