Alternative Shear Reinforcement for Reinforced Concrete Flat Slabs
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VIEW THE REPLYPublication: Journal of Structural Engineering
Volume 129, Issue 9
Abstract
This paper presents the first series of validation tests for a patented shear reinforcement system for reinforced concrete flat slabs. The system, called “Shearband,” consists of elongated thin steel strips punched with holes, which undulate into the slab from the top surface. The main advantages of the new reinforcement system are structural effectiveness, flexibility, simplicity, and speed of construction. Four reinforced concrete slabs were tested in a specially designed test rig. The slabs reinforced in shear exhibited ductile behavior after achieving their full flexural potential, thus proving the effectiveness of the new reinforcement. This paper reviews briefly existing types of shear reinforcement and identifies the need for more efficient and economic solutions. Details of the experimental setup and results are given, including strain and deflection measurements as well as photographs of sections through the slabs. Finally, comparisons are made with the ACI 318 and BS8110 code predictions, which confirm that the system enabled the slabs to avoid punching shear failure and achieve their flexural potential. In addition, both codes are shown to lead to conservative estimates of flexural and punching shear capacities of reinforced concrete slabs.
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References
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Information
Published In
Journal of Structural Engineering
Volume 129 • Issue 9 • September 2003
Pages: 1164 - 1172
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Aug 26, 1999
Accepted: Aug 8, 2002
Published online: Aug 15, 2003
Published in print: Sep 2003
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