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Showing results for tags 'building separation'.
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Aoa, Thank you all the seniors for providing such a nice learning platform. I am working on the design of a 3 story structure (2 basements+Ground Floor). Base level is at -10m from grade level while top roof (ground top) is +8m from grade level. Total covered area of building is 100mx60m which is divided into 4 blocks i.e 50mx30m each (See pic attached). Basement retaining wall is provide only at two orthogonal sides (one long and one short side) of each block. But this two sided retaining wall is creating extreme torsion irregularity in my structure. Normal span length is 12m. So my question is that can i ignore this two sided basement wall in my model ? because this is below grade level and would not contribute in resisting EQ.
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Assalam o alaikum.. My building is in zone 3 and it has a 2 inch expansion joint in it... So my building is divided into two blocks. Now I m worried when my structure will go under seismic excitation, Whether both blocks of structure will behave exactly same and will have same frequency of vibrations or will both of them can move towards each other causing collision.. Maximum story displacement for my structure is 0.81 inch. and I have assigned it value of R as 8.5. So maximum inelastic response displacement will be 0.7 x 8.5 x 0.81 = 4.82 inch. which is more than expansion joint. Both of blocks are NOT SYMMETRICAL. So both may not be having same stiffness.
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