
August 30, 2019
Foundation Design according to Eurocode 2
RISAFoundation v12 includes mat slab, concrete beam and pedestal design according to Eurocode 2. For more information, check out the video below.
While members (beams and columns) follow conventions tied to their local axes, interpreting results for wall panels, plate elements, and design strips requires a slightly different perspective. These elements deal with both in-plane and out-of-plane behavior, and the sign conventions can change depending on the program and axis orientation. Overview Table of Sign Conventions Element Type Positive Moment (M) Shear (V) Axial (P) Notes Wall Panels – In-Plane Compression in positive local-y face Downward on right face Tension = Positive Applies to in-plane forces only Wall Panels – Out-of-Plane Compression on positive local-y face N/A N/A Defines “positive bending” convention Plates (RISA-3D) Positive Mx or My = Top surface in tension Shear follows right-hand rule Tension = Positive Local Z-axis defaults upward Plates (RISAFoundation) Positive Mz = Top surface in compression Shear follows right-hand rule Tension = Positive Local Z-axis defaults downward Design Strips / Support Lines Sagging = Positive (bottom fiber in tension) Downward on right face Tension = Positive Matches slab design workflows Wall Panels Wall panels report forces in both in-plane and out-of-plane directions. In-plane: Axial = Positive tension Shear = Positive when downward on the right face Out-of-plane: Positive bending = compression on the positive local-y…
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RISAFoundation v12 includes mat slab, concrete beam and pedestal design according to Eurocode 2. For more information, check out the video below.
Eurocode lateral torsional buckling capacity is calculated per equations in Annex F in the ENV 1993-1-1:1992. This calculation uses variables C1, C2 and C3. Since there is no generic formula in the Eurocode to calculate the moment gradient factor, C1, RISA will use the widely accepted López, Yong...
The BS EN 1992-1-1:2004+A1:2014 has been implemented in RISA-3D version 16.0 and RISAFloor version 12.0. To select this code for your design, simply open the Model Settings and under the Codes tab select BS EN 1992-1-1:2004+A1:2014 for concrete:
The new British Annex (BS EN1993-1-1:2014) for the European Hot Rolled Steel material code is now available in RISA-3D v16 and RISAFloor v12.
You can now set the L-Torque length for the EN1993-1-1:2014 code in RISA-3D and RISAFloor. In previous versions of the Eurocode, RISAFloor and RISA-3D used the full member length as the torque length when calculating torsional buckling. Now, per EN1993-1-1:2014 Section 13.3.2, we’ve added the...
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