# Input (Punching)

The **Input **menu option makes it possible to state all necessary input data to describe the current calculation problem. The user finds the options **Title**, **Mode**, **Material**, **Geometry**, **Reinforcement details**, **Loads** and **Shear reinforcement**. These are described in the following chapters.

# Title

The **Title **option shows a dialog box where information on the calculation can be defined.

# Mode

Punching calculation can be performed for rectangular and circular columns.

# Material

In the material dialog box all material strength input is assembled.

**General**

Under the header **General**, conditions that affect the calculation are stated. Exposure class and life time class are defined and affect code checks where relevant. The options **Quality control and reduced deviation** and **Reduced or measured geometrical data** can be checked. The two latter options together with the option **Low strength variation**, see below, changes the partial factors for materials according to EN 1992-1-1 Annex A A2.1 and A2.2.

**Concrete**

Concrete strength class can be defined by selecting from the list. Current design values are shown. It is also possible to define user defied values. If the option **Low strength variation** is checked together with one or both of the two options described above the partial factor for concrete will be changed according to EN 1992-1-1 Annex A A2.1 and A2.2.

**Reinforcement**

In the **Reinforcement **dialog boxes type of reinforcement bars and links can be defined by selecting from lists.

# Geometry

Column measurements, slab thickness and effective part of the critical perimeter are defined. The latter is to consider possible holes in the vicinity of the column.

Type of column, interior, edge or corner column is defined. For an edge column also a possible distance from slab edge to column edge in the x-direction could be defined. (Max distance is the slab thickness). For a corner column a possible distance from slab edge to column edge both in x- and y-direction could be defined.

# Reinforcement details

Bar diameter, reinforcement amount in x- and y-direction and cover are defined. The reinforcement amount can then be defined either as c/c distance (mm) or as a percentage.

It is possible to inactivate the code rules concerning allowed covers.

# Loads

Punching force, moment **M _{x}** around y- and

**M**around x-axis are defined. Ten load combinations can be analyzed at the same time.

_{y}