Repair and Strengthening Methods of Flat Slabs for Punching

Citation:
Repair and Strengthening Methods of Flat Slabs for Punching, Ramos, Antonio, Lucio Valter, and Regan Paul E. , International Workshop on Punching Shear Capacity of RC Flat Slabs, Stockholm, p.125–133, (2000)

Abstract:

The present work reports experimental research carried out on repair and strengthening methods of flat slabs for punching. The repair and strengthening methods studied are: strengthening using transversal prestress, repair by substitution of the damaged concrete; and strengthening using steel beams as a column head, connected to the column and to the slab with epoxy resin and mechanical expansion anchors. Four experimental test slabs (AR1 to AR4) were produced and tested: two with transversal prestress, one only repaired and one strengthened with a steel column head. The execution process, its efficiency and design, are discussed.

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