Behavior of Composite RC Slabs Made of New Slabs Added to Old Ones Using Shear Dowels

Abstract: Structural Strengthening maybe required for structures to accommodate above the design values. Moreover, the change of the building use may require increase in structure element capacity. On the other hand, structural capacity upgrade may be needed in case of structural element deterioration.

Concrete structures need to be strengthened for any of the following reasons:

• Load increase due to higher live loads, increased wheel loads, installations of heavy machinery, or vibrations.
• Damage to the structural parts due to aging of construction materials or fire damage, corrosion of the steel reinforcement and/or impact of vehicles.
• Improvement in suitability for use due to limitation of deflections, reduction of stress in steel reinforcement and/or reduction of crack widths.
• Modification of structural system due to the elimination of walls/columns and/or openings cut through slabs.
• Errors in planning or construction due to insufficient design dimensions and/or insufficient reinforcing steel.

Keywords: Structural Strengthening, Composite RC Slabs, building, structural capacity, heavy machinery.

Title: Behavior of Composite RC Slabs Made of New Slabs Added to Old Ones Using Shear Dowels

Author: Hesham A. Haggag, Moustafa A. Osman, Mohamed I. El- Shewy

International Journal of Engineering Research and Reviews

ISSN 2348-697X (Online)

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