Shell
Glossary Term
In RFEM, there are the following modelling possibilities, for example:
- Quadrangle surface
- Rotated surface
- Pipe
- B-spline surface
- NURBS surface
- Trajectory surface
Shells are loaded by bending and membrane forces. If the thickness of a shell is small in comparison with its span, the load is usually transferred by membrane forces.
As described in FAQ 002727, the modelling using quadrangle surfaces is preferred in the case of complex models.
Keywords
Shell Curved surface Quadrangle Rotated surface NURBS
Bibliography
Links
New
If the geometry of a surface, for which you must remove some of the existing boundary lines, changes subsequently, you don't need to redefine the surface.
![Vertical Soil Stress under Corner Point of Uniform Rectangle Load [2]](/-/media/Images/website/img/000001-010000/009601-009700/009675.png?la=en&mlid=AEBCAC28C25A4A2F93F419D5DA4345C3&hash=C2A6383AD9BEC4A6A8EB68C3F997CE680E35D3AC)
![Vertical Soil Stress According to Boussinesq [2]](/-/media/Images/website/img/000001-010000/009601-009700/009674.png?la=en&mlid=6A2CE5FBD4C1471CB9163F4CD95C1105&hash=47163D27466542FC24133FADC006A9D2E2FD490F)
![Distribution of Vertical Soil Stresses and Related Settlement under Uniformly Distributed Load from [2]](/-/media/Images/website/img/000001-010000/009601-009700/009676.png?la=en&mlid=0F1EF7232A7141658DA9FC03757AD39F&hash=16731A6B41D9FDEB3B3EA4C39AC534791DB85C35)
![Time-Dependent Settlement Components [2]](/-/media/Images/website/img/000001-010000/009601-009700/009673.png?la=en&mlid=136EB2E10159447D9AA4FCBA2CAAFFAC&hash=FE51BA31D459E02FBB24C2B80C4445E604F92FA9)
![Notations for Connection Between Flange and Web (Source: [1])](/-/media/Images/website/img/000001-010000/009301-009400/009346.png?la=en&mlid=D9C7DB2B944945F29F891C7D1ECBAA9D&hash=17A753160E915BF07D236B5CAEE7DA8A309C1516)
![Window '1.1 General Data' for Serviceability Limit State with Settings for Nonlinear Calculation According to [2]](/-/media/Images/website/img/000001-010000/009301-009400/009376.png?la=en&mlid=149164433F8D4E0D89705EF3B002E4A8&hash=3AB14C4B44380D5CD55A73A5E3D45D8D86BFB424)
![Effective Flange Width Parameters ([1], Figure 5.3)](/-/media/Images/website/img/000001-010000/009501-009600/009561.png?la=en&mlid=13AB26CD264B4FA99150359EADB3EBDF&hash=13863925A3B86AD93F59B56362BB016CB2A3AF83)
Material Model Orthotropic Masonry 2D
The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
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If I do not specify any basic reinforcement in RF-CONCRETE Surfaces, I get the value X as additionally required reinforcement. If I enter this value X as the existing basic reinforcement, I correctly do not get any additional required reinforcement.
However, if I enter a lower value than the determined required total reinforcement as the basic reinforcement, the additionally required reinforcement is increased in such a way that the originally required reinforcement content is exceeded. Why? - Why does the RF-CONCRETE Surfaces add-on module not increase the amount of reinforcement until the SLS designs have a design ratio of 1.0?
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Associated Products
Main Program
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
3,540.00 USD
Add-on Module
Form-finding of tensile membrane and cable structures
1,750.00 USD
