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Showing results for tags 'raft retrofitting'.
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Dear all I want to discuss an issue recently encountered at site. Designer had given details of raft with #6 @ 6" o.c reinforcement BW in top and bottom meshes but contractor instead provided#4 @ 7" o.c. the raft and 1st story columns have been casted. On doing its capacity analysis the raft with provided reinforcement was not adequate to support to super structure. Now I'm thinking of doing retrofitting by providing an overlay of 9 to 12 inches. I wanted to know about shear keys/dowels for the connection between old and new slab. Can anyone provide any helping material for it? Thanks
