CYPECAD - Options in the "Walls" menu in the "Beam input" tab
Entering reinforced concrete walls, plane stress walls and masonry walls
To insert reinforced concrete walls, flat slab walls or masonry walls in CYPECAD, open the "Beams input" tab, access the “Walls” menu and select the option “Insert wall”.
When this option is selected, the program displays the wall characteristics definition window.
This allows the following wall types to be inserted, depending on the selection made at the top:
- reinforced concrete walls, or reinforced concrete walls with two reinforcement planes;
- flat stress walls, or reduced-thickness reinforced concrete walls with a single reinforcement plane;
- concrete block walls;
- and brick masonry or rubble masonry walls.
The definition options for several of the available wall types are similar and are described later.
This window can be accessed from the dialogue box that appears when inserting the wall, which contains options allowing the following actions:
- select the current wall, indicating the wall typology to be inserted and the dimensions of its cross section;
- select the wall insertion mode (between "Simple", "Continuous" and "Capture");
- select the wall alignment line to be inserted (between "Left", "Centre" and "Right");
- and define the offset between the insertion line and the wall.
| Note: |
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| These options are analogous to those that appear in the beam insertion process. See this link to understand how they work. |
Definition of the wall reference and height
In the wall definition window, the first step is to define the wall "Reference".
The "From" and "To" drop-down lists allow the groups of storeys where the wall starts and ends to be specified.
| Note: |
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| If a particular storey does not appear, it is because it forms part of a group containing more than one storey. The storey must be ungrouped in order to be selectable. |
Shear wall condition
In the case of concrete walls and flat stress walls, it is optionally possible to indicate that the wall is a "Shear wall" by activating the corresponding checkbox and entering a "Label" for the wall. All walls with the same label are grouped to form a shear wall.
| Note: |
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| These walls take part in the analysis of forces but are not designed in CYPECAD. To calculate their reinforcement, an export to BIMserver.center must be performed, and the information must then be imported into a program capable of doing so, such as StruBIM Shear Walls. |
Definition of wall thicknesses and embedded beams
The program then displays a table that allows the following information to be entered, related to wall thicknesses and to the geometry of any beams embedded in the wall:
- In the first columns, the thicknesses to the "Left" and "Right" of the wall are defined on each storey it passes through, measured from the insertion axis.
- In the "Embedded beam" column, the geometry of the embedded beam or capping beam present on each storey crossed by the wall is defined. This can be done by selecting:
- "With general characteristics";
- "With particular characteristics", in which case the beam thickness to the "Left" of the wall, to the "Right", and its "Depth" are entered;
- or not defining it at all ("No embedded beam").
- Finally, the right-hand checkbox in the "Cont." column allows the reinforcement to be indicated as continuous: when selected, the current storey and the one above form a single reinforcement segment.
The left or right dimension is established with respect to the wall insertion direction: when looking from the starting point of the wall towards the end point, the left side is the one on the left of the line joining them, and the right side is the opposite.
| Note: |
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| In general, it is recommended to use the same thickness on the left and on the right, corresponding to half of the total wall thickness. It is also possible for a wall to have different thicknesses on each storey while remaining aligned to one face. To do this, the same thickness value is maintained on the left or on the right on all storeys, and the other thickness is modified on each storey. |
Pressure laws acting on the wall
The "Pressure laws" option allows earth pressures or generic pressure laws to be applied to the left face and/or the right face of the wall, by selecting them from a previously defined "List of pressure laws".
| Note: |
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| This option is not available for flat stress walls, as this structural solution is not designed to withstand out-of-plane bending forces. |
Axial stiffness coefficient of the wall
By activating the "With different axial stiffness coefficient" checkbox, the value of this coefficient can be edited on each storey of the wall.
Definition of the wall foundation or support
In the "Foundation" section, the wall support conditions are defined by choosing one of the available options from the drop-down list.
- Fixed support
If this option is chosen, the program does not define any type of foundation. Foundation elements for the wall can later be inserted using the specific options in the "Foundation" menu, as with columns and core walls. This can also be useful in cases where a common foundation element is required for several walls.
- Strip footing without soil-structure interaction
The wall is defined on a strip footing without soil-structure interaction. In this case, it is selected whether the footing will have "Overhang to the left only", "Overhang to the right only" or "Overhang on both sides". The "Depth" and the footing "Overhangs" to the left and/or right are then specified.
- Strip footing with soil-structure interaction
The wall is defined on a strip footing with soil-structure interaction. In this case, in addition to the data indicated in the previous option, the value of the "Subgrade modulus" must be defined, allowing footing settlement to be considered.
- Foundation beam
The wall is supported on a foundation beam. In this case, the "Left overhang", "Right overhang" and "Depth" of the foundation beam are defined. In the lower part, the "Allowable soil stresses" are defined for both "Persistent situations" and "Seismic and accidental situations", as well as the "Subgrade modulus". It is possible to "Import usual project values" for the allowable stresses using the assistant on the right.
- Propping
This option is used for walls propped on beams and allows the geometric definition of the support beam beneath the wall directly by entering the "Left overhang", the "Right overhang" and the "Depth". This automatically generates a beam beneath the wall with these characteristics, without the need to insert a separate beam using the specific options.
All the values described can be collected by clicking on "Copy from wall" and then selecting another wall in the project with all the information already defined.
Wall layout in plan
After completing the wall definition, click accept. At this point, the pointer can be moved over other inserted elements such as columns, beams and other walls to capture them, or the "Template snaps" on the upper toolbar can be activated and used.
Click to define the starting point of the wall, and then click a second time to define the end point of the wall.
By doing this, the wall is inserted simultaneously together with the defined foundation or support element, as well as the embedded or capping beams specified in its definition panel.
Example model with walls
CYPECAD - Options in the "Walls" menu in the "Beam input" tab
Licencias y módulos relacionados
Los programas de CYPE se activan mediante licencias electrónicas que pueden contener uno o varios módulos. La lista de módulos compatibles con cada programa puede variar en función del producto adquirido y del tipo de licencia.
Para consultar la lista de módulos compatibles con este programa, se puede acceder a "Módulos de los programas de CYPE".
Es importante tener en cuenta que la lista de módulos disponibles en la licencia dependerá del producto adquirido.
