INDEX

• Properties and use of plane stress walls
• Plane stress walls in CYPECAD
• Versions and modules of CYPECAD
• Related programs

Properties and use of plane stress walls

Plane stress walls are reduced thickness reinforced concrete walls with a single reinforcement plane, which are used as load bearing walls to support vertical loads and also resist horizontal forces acting in the plane of the wall. They are commonly used in some countries: Columbia, Ecuador, India or Peru.

In Peru, they are also known as limited ductility walls. A high number of residential buildings with heights ranging from five to ten floors, built in Lima, have slabs and limited ductility walls as their main structural system. The structural system of Limited Ductility Wall Buildings competes with the structural system of those which have been built with confined masonry load bearing walls. The speed with which limited ductility walls are built, as well as their low cost, makes them a good option for economical buildings.

Plane stress walls in CYPECAD

CYPECAD allows users to introduce and design this type of reinforced concrete walls (Beam Definition tab > Walls/Beams > Define wall > Plane stress walls) if the user license contains the Plane stress walls module.

The forces the program uses to design the plane stress walls are those which are located in its plane (vertical axial force, horizontal axial forces and tangential axial force).

Plane stress walls can be designed using any of the concrete codes implemented in the program, regardless of whether the code mentions them or not. For codes which do not have any specific criteria for this type of walls, the minimum steel areas established for regular reinforced concrete walls will be applicable, and provided in their single reinforcement plane.

The program limits the thickness of these walls depending on the selected reinforcement code:

• With IS 456: 2000 (India), the thickness of these walls has to lie between 10 cm and 17 cm.
• With the remaining implemented concrete codes, the thickness of these walls can range from 10 cm to 25 cm.

CYPECAD allows users to limit the diameters of reinforcement, this way the minimum cover dimensions are maintained. 

CYPECAD versions and modules

CYPECAD versions

CYPECAD is sold in two versions, CYPECAD y CYPECAD LT. Both versions are composed of several modules that allow to develop all the utilities of the program. These modules can be acquired jointly or combined amongst them.

The integrated 3D structures of CYPECAD is not technically a module. In order to be able to define steel 3D structures within CYPECAD, it is necessary for the user license to be able to access Metal 3D. If, additionally, the user has access to use the timber section module of Metal 3D, integrated 3D timber structures can be defined in CYPECAD. 

CYPECAD together with all its modules represents the complete version of the program.

CYPECAD LT is the limited version of the program, nonetheless, it offers the same tools and module acquisition possibilities as CYPECAD. With CYPECAD LT, structures that do not override the following conditions can be analysed:

• Thirty columns.
• Four floor groups. (Floor groups: same floor and consecutive).
• Five floors in total.
• Wall: one hundred metres in length.

CYPECAD Modules

The following modules are those that can be acquired together with CYPECAD or CYPECAD LT:

• Concrete columns
• Concrete beams
• Steel columns
• Steel beams
• Joist floor slabs (generic concrete joists)
• In-situ, precast and steel joist floors (Joist floor module required)
• Waffle slabs
• Flat slabs
• Composite slabs
• Hollow core slabs
• Shear walls
• Reinforced concrete walls
• Plane stress walls
• Stairs
• Mat foundations and foundation beams
• Concrete block walls
• Pile caps (includes strap and tie beams) (*)
• Pad foundations (isolated and combined) (includes strap and tie beams) (*)
• Baseplates (*)
• Automatic job introduction
• Parallel analysis with two multiprocessors (*)
• Parallel analysis with four multiprocessors (*)
• Aluminium sections (*)
• Timber sections (*)
• Joints I. Welded. Warehouses with rolled and welded steel I sections (*)
• Joints II. Bolted. Warehouses with rolled and welded steel I sections (*)
• Joints III. Welded. Building frames with rolled and welded steel I sections (*)
• Joints IV. Bolted. Building frames with rolled and welded steel I sections (*)
• Joints V. Flat trusses with hollow structural sections (*)
• Export to Tekla (*)
• Export to TecnoMETAL (*)
• Export to in CIS/2 format (*)

(*) Common modules are operative for both CYPECAD and METAL 3D.

Top