An important advantage of the innovating multi-platform Advance BIM Designers collection of apps that allow automatic generation of 3D reinforcement for reinforced concrete elements is the possibility of direct integration into the interface of the Advance Design calculation software.
One of the many benefits of this integration is a more efficient footing presizing process, after the structure is modelled and a FEM analysis is performed directly in Advance Design.
Advance BIM Designers reuses all information related to material, size or forces in a support and automatically generates reinforcement cages, drawings and reports, based on user-defined reinforcement assumptions.
The Advance Design finite element analysis engine is evaluated in this study.
The Advance Design FEM (Finite Element Method) analysis engine is a powerful tool that allows users to study complex structures, by dividing them into mesh units, where for each of the deformations, efforts and stresses can be solved by using known equations of elasticity.
Considering different sized models (real projects from customers), a timing comparison of mesh operations and the FEM engine is made between:
- Advance Design 2010 version (with Service Pack 3) and
- Advance Design 2012 version (with Service Pack 2).
As it can be seen from the following table, Advance Design 2012 (with Service Pack 2) has better times for mesh operations, but also for the total duration of the Finite Element Analysis (FEA) than Advance Design 2010 (with Service Pack 3) – see the “Deviation” columns which show the decrease of times.
Between the chosen Advance Design versions, differences in the analysis model may appear (especially regarding the number of loadings) due to revisions made in the windwalls rupture algorithm.
Note: Tests were realised on a desktop computer with the following configuration: Intel Core i5 3.2 GHz, 16 GB RAM, Win 7 x64
On larger models, notice the improvements with the meshing operation, as the necessary time for it was decreased by 86.2 %. Also, the total time necessary for running the FEA analysis has been reduced by 22.9%.
In conclusion, Advance Design has succeeded to manage large models with over 214 000 mesh nodes and over 1 285 000 degrees of freedom (DOF), and its possibilities are extended.
SuperSTRESS continues to be a favorite among UK engineers offering simplicity to complex problems. With the release of SuperSTRESS 8.0C, as well as speed and performance improvements, SuperSTRESS gets a major update and now includes a new Cross Section Module expanding the functionality of the already ‘feature rich’ program. The new Cross Section module is already in use since several years in Advance Design (the structural analysis and design GRAITEC solution) and was proven and acknowledged by the market.
The new Cross Section Module calculates the section properties of any shape you wish to create, this can be done from an arbitrary contour, using standard circular, square, rectangular and polygonal shapes or even using any section from the Steel Section library. The lx torsional calculation can be done using an analytical or numerical method so any section’s torsional property can be calculated. These sections can then be independently saved and brought back into SuperSTRESS for inclusion in the analysis.
The Cross Section module is able to calculate the section’s characteristics for any composed section (multiple contours), having an option to consider the relative rigidity in case of heterogeneous cross sections (multiple materials), ex. standard reinforced concrete or mixed steel – concrete sections.
For reinforced concrete sections, the module is going further, providing the option to define manually / automatically the reinforcement for any concrete shape, including user defined polygonal shapes. The sections defined in this way can then be verified with interaction curves, or simply used in FEM analysis on linear elements with corrected rigidity. For steel sections, the user is able to define calculations points for normal stress (Sigma XX) in a simple and intuitive interface.
If you would like to find out more about SuperSTRESS 8.0c or upgrade your license speak to a member of the Graitec UK team on 0844 543 8888.
Are you ready for the Eurcodes? GRAITEC’s Advance Design 2012 is! The latest version includes all of the UK National Annexes for EC0, EC1 (climatic), EC2 (concrete), EC3 (steel) and EC5 (timber).
Many top UK engineering consultancies have already decided to move over from British Standards to the Eurocodes and Advance Design
is making this transition very easy.A very intuitive and easy to use CAD interface takes the stress out of model creation and this is made even easier with intelligent BIM
connections to many industry standard file types including IFC, SDNF, PSS, CIS2 and DXF. Fast finite element analysis and design with automatic mesh generation and member optimisation allow for many different iterations of you model in quick succession. Easy to create result reports and documentation in many formats including DOC, PDF and EXCEL. Advance Design
is the complete package for Eurocode Design.
Advance Design provides the option to define a manual mesh on linear elements in order to save time both in modeling and computation.
Linear elements mesh: by selecting one or more linear elements and accessing the properties window, all the available options that can be modified are in the Mesh category.
i. Automatic – when this option is active, all the imposed/intersected structural elements will be connected and share common nodes.
Automatic mesh option inactive Automatic mesh option active
ii. Number – by entering a value in this field, the element will be meshed in that number of elements, without considering the value of the general mesh (global mesh options).
iii. Size – in this field a maximum dimension of the mesh is defined (length units); by applying a uniform spacing with a maximum dimension of “m”, the mesh will look as the following figure:
iv. Spacing – this option is directly connected to Size and Secondary Size; when any of the other available options, besides uniform spacing, is used then this field must be completed.
v. Secondary size – this field is the minimum dimension which will take into account the type of the spacing selected.
Sxx stresses on linear element at extremity “i”
vi. Extend into the wall – when a beam is supported by a wall (in the longitudinal direction), activating this option will create a rigid connection between the wall and the beam.
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