Generally, rfpunch pro performs an iterative calculation to find the control perimeter of foundations or floor slabs. The latest version of ancons shearfix software is 5. Calculating the required punching shear reinforcement. Punching force kn perimeter mm plate thickness mm shear strength kn mm 2.
Punching shear is a phenomenon where a concentrated force on a slab causes a shear failure cone that punches through. Punching shear design calculation civil engineering. Punching shear arises when a concentrated load is applied to a small area of a slab or, most commonly, the reaction of a column against a slab. By simplifying slab reinforcement at column locations and eliminating column capitals, stirrup cages, or i beam shear heads, they enable efficient design and rapid construction of flat plate concrete floor slabs. The ancon design program simplifies the specification and ordering of a shearfix system. This can happen only if there exists shear alone in the system. The shear force, vedacts over an area udeff, where. The calculations of punching shear dealt in the design is based on the punching shear force that is punching against the thickness of the slab or foundation. For the simple case of a concentric footing with a downward load, the punching shear can easily be calculated as the volume of the bearing pressures on the critical area around the column.
It is a simple and easy way to calculate the punching shear reinforcement requirement for your column. This easytouse program allows the optimum design to be determined and generates a printable calculation sheet, a dxf file and a parts list of the specified layout. Punching shear stress calculations in order to keep the focus on punching shear stress calculation, the work starts by assuming that the design values mu and vu for each columnslab condition are given. Details name punching shear design calculation pages format xlsx size 1 mb download method direct download download. Halfen hdb as punching shear and shear reinforcement. After the calculation, the module displays clearly arranged tables including all result details to ensure traceability at any time. In many instances, column reaction is conservatively used as design value for punching shear. The software application performs the following separate calculations. Punching shear calculations require a demand value and a capacity value. This is not possible if there exist any form of moment in the pedestal or the column.
In this video, we investigate how to analyze a slab for punching shear, how to design rebar and stud rails, and some theory, tips and tricks. Easy to use application for analysis of punching shear of reinforced concrete columnslab connection. Cads punching shear designer is a software application which performs rapid and costeffective design solution of punching shear calculations for reinforced. The program is able to analyse both plain and reinforced concrete structures. Halfen punching shear reinforcement and shear reinforcement. Determine the factored column moment design moment m u and the factored shear design shear v u. Punching program for verification of punching shear resistance of concrete slabs according to en 199211 and en 19922. Software for calculation of jordahl punching shear reinforcement jda. Jordahl expert software for punching shear reinforcement. Simplified calculation with a fecalculation software. The critical punching shear perimeter is automatically calculated and punching shear steel is designed if required. Download our free software for calculating jordahl products. Punching shear is produced directly by the forces and moments acting on the column.
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