In previous versions, users could only introduce one axial stiffness coefficient for all the reinforced concrete columns, shear walls and walls of the job. As of the 2014.d version, three generic axial stiffness coefficients exist which can have different values:
- Axial stiffness coefficient for columns
- Axial stiffness coefficient for shear walls
- Axial stiffness coefficient for walls (reinforced concrete walls and plane stress walls )
As well as the three generic axial stiffness coefficients, the 2014.d version of CYPECAD also allows for specific axial stiffness coefficients to be assigned to each column, shear wall, reinforced concrete wall or plane stress wall of the job.
An axial stiffness coefficient can be assigned to these elements with a different value at each span, following the process detailed below:
- For columns
The individual axial stiffness coefficients are assigned to each column (Column Definition tab > Introduction > Columns, shear walls and starts > Axial stiffness coefficient > select a column > select “Column properties which differ from the general properties of the job” > Introduce the axial stiffness coefficients for each floor). - For shear walls
The axial stiffness coefficients for shear walls are assigned to each shear wall type, which implies that all the shear walls of the same type that are introduced will have the axial stiffness coefficients for that type (Column Definition tab > Introduction > Columns, shear walls and starts > Edit > select a shear wall > Define types > select “With different axial stiffness coefficient” > introduce the axial stiffness coefficients for each floor). - For reinforced concrete walls and plane stress walls
The axial stiffness coefficients for walls are assigned to each wall span that is introduced in a single introduction step (Beam Definition tab > Beams/Walls > Edit > select a wall span > select “With different axial stiffness coefficient” > introduce the axial stiffness coefficients for each floor).
