Use this dialog to define calculation parameters of RC members according to the Eurocode 2 (EN 1992-1-1:2004/A1:2014 with different National Annexes). 
  
  
		 
	 
Access
 
		 
		- Click 
			 Design 
 Required Reinforcement of Beams/Columns - Options 
 Calculation Parameters 
			  to open the Calculation Parameters dialog, and then click 
			 
. 
		   
- Click 
			 
 (RC Member calculation parameters) to open the Calculation Parameters dialog, and then click 
			 
. 
		   
 
	  
Dialog elements
 
		 
		
 
		- Concrete 
			 
 
-  
				
Select the name of the defined concrete. 
				
 
				Note: If the 
				  As in a structure model option is selected then parameters used in a structure model will be used. 
				
 
				- Creep coefficient 
					 
 
-  
						
Defines the creep coefficient value. The parameter used to automatically calculate the creep coefficient. 
						
 
						If the 
						  Allowed nonlinear creep option is selected then the nonlinear creep is taken into account in calculations according to point 3.1.4(4). 
						
 
					  
 
			  
 
		You can also define the following parameters: 
		
 
		- Reinforcement check (cracking) - checks reinforcement for cracking according to point: 7.3.4 for EN 1992-1-1:2004/A1:2014 
		  
 
- Maximum cracking value - the parameter used when the limit state of the crack width is checked; it is associated with the Cracking calculation by increasing reinforcement area option in the 
			 Calculation Options dialog, 
		  
 
- Exposure - the parameter used to automatically calculate humidity according to point: 4.2(2) for EN 1992-1-1:2004/A1:2014 
		  
 
- Redistribution factor - coefficient of moment redistribution, 
		  
 
- ctg theta - the theta angle is an angle between inclined concrete struts and the horizontal line, 
		  
 
- Structure class - the parameter that determines the cover.