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When reshoring a multistory building with many levels of reshores (5+ levels of reshores), how much load would the lower most slab experience from the loads on the top? Using diagram sketch, there 5 levels of reshores and 6 interconnected slabs. When the 7th floor is poured would the bottom most slab (1st floor slab) share the same load as the upper most (6th floor)? If so then the 1st floor slab could easily overloaded by the wet concrete load in addition to, say 50 PSF construction LL on each floor above?
1/6(Constr. LL & 12" of Wet concrete DL)+ 1/5 Constr LL + 1/4 Constr. LL + 1/3 Constr LL + 1/2 Constr LL + 1 * Constr LL = 147.5 PSF
OR is it safe to assume, because the reshores and slab are not perfectly stiff, the upper reshored floors would carry more of the load? I believe they mention this in "ACI-347 Guide to reshoring", that the simplified method overestimates the load on the bottom shores. If so what would the actual distribution be? If you had 10 floors reshored, common sense would say the lower most slab would not experience the same share of the wet concrete dead load as a slab 9 floors above.
1/6(Constr. LL & 12" of Wet concrete DL)+ 1/5 Constr LL + 1/4 Constr. LL + 1/3 Constr LL + 1/2 Constr LL + 1 * Constr LL = 147.5 PSF
OR is it safe to assume, because the reshores and slab are not perfectly stiff, the upper reshored floors would carry more of the load? I believe they mention this in "ACI-347 Guide to reshoring", that the simplified method overestimates the load on the bottom shores. If so what would the actual distribution be? If you had 10 floors reshored, common sense would say the lower most slab would not experience the same share of the wet concrete dead load as a slab 9 floors above.