D13.A.4 Columns
Longitudinal reinforcement for columns is calculated only from condition of strength. Longitudinal forces and bending moments in relation to local axes Y_{loc} and Z_{loc} are taken into account in longitudinal reinforcement calculations.
For rectangular columns the following output is generated:

column number;

column length and crosssectional dimensions;

distance of centroid of each longitudinal bar from the nearest edge of the crosssection;

concrete class;

longitudinal reinforcement class;

range of longitudinal reinforcement bar diameters assumed in calculation;

diameter of longitudinal reinforcement bars obtained in calculation;

total quantity of longitudinal bars;

quantity of longitudinal bars at each crosssection edge, directed parallel to the local axis Y_{loc} ;

quantity of longitudinal bars at each crosssection edge, directed parallel to the local axis Z_{loc} .
In nine columns of the table under the heading LONGITUDINAL REINFORCEMENT the following output is presented:
Result  

Section  distance of the section from the start of the column, mm 
Astot  total crosssectional area of longitudinal reinforcement, sq.cm 
Asy  crosssectional area of longitudinal reinforcement bars at each edge of section, directed parallel to the local axis Y_{loc} , sq.cm 
Asz  crosssectional area of longitudinal reinforcement bars at each edge of section, directed parallel to the local axis Z_{loc} , sq.cm 
Percent  reinforcement percentage in the section 
Nx, Mz, My  respective values of longitudinal force and bending moments in relation to the local axes Z_{loc} and Y_{loc} , determining crosssectional area of longitudinal reinforcement 
Load.N.  number of loading version, determining crosssectional area of longitudinal reinforcement 
Diameter of longitudinal reinforcement bars, total quantity of longitudinal bars as well as quantity of longitudinal bars at each edge of the section obtained from calculation should be considered as recommendation. In this case arrangement of reinforcement in the section depends on the orientation of the local axes and is as follows:
Calculated values of reinforcement crosssectional areas are presented in the table and they may differ from recommended on the lower side.
When it is not possible according to detailing provisions to arrange in the column longitudinal reinforcement determined from calculation additional message is derived.
For columns of circular section the following output is generated:

column number;

column length and diameter of crosssection;

distance of centroid of each longitudinal bar to the edge of crosssection;

longitudinal reinforcement class;

assumed in calculation range of diameters of longitudinal reinforcement bars;

diameter of longitudinal reinforcement bars obtained from calculation;

quantity of longitudinal bars.
In seven columns of the table under the heading LONGITUDINAL REINFORCEMENT the following results are presented:
Section  distance of the section from the start of the column, mm 
Astot  total crosssectional area of longitudinal reinforcement, sq.cm 
Per cent  percentage of longitudinal reinforcement 
Nx, Mz, My  respective values of longitudinal force and bending moments in relation to local axis Z_{loc} and Y_{loc} , determining crosssectional area of longitudinal reinforcement 
Load. N.  number of loading version, determining crosssectional area of longitudinal reinforcement 
Diameter of longitudinal reinforcement bars, total quantity of longitudinal bars as well as quantity of longitudinal bars at each edge of the section should be considered as recommendation.
Arrangement of reinforcement in section in this case is shown below:
Calculated crosssectional areas of reinforcement presented in the table may differ from recommended on the lower side.
When according to detailing provisions it is not possible to arrange in the column longitudinal reinforcement obtained from calculation additional message is derived.