Solution technical specialist
Abstract
In this article you will see how our new Masonry design module can handle walls modeled in Advance Design.
Keywords: #AdvanceDesign #Masonry
Starting with Advance Design 2023 you can model and design Masonry Walls according to Eurocode, NTC and CR6 codes. In order to correctly cover full approach following novelties were implemented:
- FEM calculations – in the definition of masonry materials (single/two-layer/re-layered, slotted hollow/filled);
- FEM calculations – in the definition of rotary/translational edge releases, including single-sided compression/tension releases;
- Design of walls defined in the FEM model in the new design module according to codes;
- Design of walls in standalone design module application for a wall defined and loaded separately by the user (without the FEM model).
1. Definition of masonry material in Advance Design
Advance Design 2023 implements a new material family – MASONRY, along with reference to relevant national standards, for example Eurocode 6 together with national annexes. Within this family, it will be possible to define walls of various types in terms of their construction – single-layer (including stiffened), two-layer, façade, cavity walls (filled or not). The type of wall will affect the mechanical parameters of the material, such as the strength parameters of the wall, but also stiffness. Thanks to this, it will be possible to define multi-material walls and you will not have to worry about determining their parameters yourself. In addition, a database of masonry units and mortars was implemented.
2. Masonry design module in Advance Design
Due to the fact that the masonry dimensioning has been implemented in accordance with our current philosophy, 2 work scenarios will be available as a dimensioning module – the use of the module on elements in the FEM model as well as the independent launch of the application, where the user, by defining the geometry of the wall and loads, will calculate any part of the wall without need to create a complex FEM model. So far, other reinforced concrete modules such as beams, columns, footings, etc. have worked on the same principle.
When working with a masonry wall in Advance Design, the key is how to transfer this wall to the module – as you can see, all pillars can be designed within one element. Working with the module itself looks identical to the existing reinforced concrete modules.
The method of determining the design forces is also interesting – strip method was used here, which was also used earlier as one of the possibilities of design RC slabs.
Thanks to this, FEM forces are converted into resultant forces reduced in the pillars. But importantly, the user will also be able to manage the width of the integral and enter their own panel division.
3. Masonry design according to Eurocode 6
On the basis of the above reduction or on the basis of external loads (in the standalone version of the module), the pillars are dimensioned according to the provisions of Eurocode 6 (or Italian NTC/Romanian CR6). Both detailed methods according to part 1 of the standard as well as simplified methods based on part 3 may be used.
The external and internal walls of the basement floors, intermediate and highest, are designed.
The scope of calculation is the design of walls:
- loaded mainly vertically
- under concentrated load
- for bending from loads perpendicular to the plane of the wall (e.g. wind/ground pressure)
- for shear in and out the plane of the wall.
In addition, the stresses can be verified according to the classic principles of mechanics. The user will be able to indicate whether he wants to carry out all or only selected verifications, and the results will be presented for the worst or specifically indicated pillar.
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