What StruCla does
3D frame analysis
Steel, timber and concrete members, columns, slabs and supports in one 3D finite element model, with results as diagrams and colour plots.
Load cases and combinations
Permanent, variable and wind load cases, generated Eurocode combinations (ULS and SLS), grouped in classes, with a clear view of which loads each combination includes.
Deflection with creep
Instantaneous and final deflection including creep for timber and concrete members, checked against a limit you set.
Buckling and unity checks
Critical load factor, member unity checks and colouring per member, so the governing members are visible at a glance.
Pipework and supports
Draw pipes in the structural model, with support rings that can be switched on and off separately from the pipe itself.
Drawing tools
Measure, dimension lines with chaining, snapping, DXF export and a printable report with your project data and logo.
Validation
StruCla is checked against other structural software and against hand calculations. The first comparison is a timber beam (50×100 C24, span 1.5 m) calculated in Technosoft Raamwerken and in StruCla: reactions, moments, deflections with creep and the EN 1995-1-1 stress check agree within the rounding of the Technosoft output.
StruCla against Technosoft Raamwerken: timber beam · Technosoft output · StruCla report
The second comparison is a steel beam (HEA 180 S235, span 4.15 m): forces, reactions and deflections agree, and the lateral torsional buckling check to EN 1993-1-1 gives a unity check of 0.489 against 0.488.
StruCla against Technosoft Raamwerken: steel beam · Technosoft output · StruCla report
The third comparison is a concrete frame with columns and beams (C16/20, B400B) calculated in SCIA Engineer and in StruCla: the support reactions and 20 of 30 section-force rows agree within the rounding of the SCIA output, the other rows differ by at most 4 % for values above 5, and the capacity response check of a console, including the compression zone limit of NEN-EN 1992-1-1+NB 6.1(9), gives 0.72 against 0.71.
StruCla against SCIA Engineer: concrete frame · SCIA output · StruCla report
The fourth comparison is a limited one: a concrete pump foundation slab on elastic subsoil. The SCIA output only holds the input, the natural frequencies and one reaction, so only these are compared: all six natural frequencies agree within 3.2 % and the total reaction within 0.5 % (with the same unit weight). Moments, deflections and soil pressures could not be compared.
StruCla against SCIA Engineer: pump foundation slab · SCIA output
The fifth comparison is a steel frame on three concrete plinth walls and a foundation slab on subsoil, calculated with StruCla's new shell solver and compared with SCIA Engineer for the load case self weight (the only one with SCIA results): the steel frame forces agree in all 24 values, and in the element centres 71 of 96 values of the slab and 38 of 48 values of a plinth wall agree. Differences remain at the east end of the plinth walls and in the horizontal force at the base of a wall; the wind and friction loads are not validated. The shell solver is not yet in the online app.
StruCla against SCIA Engineer: steel frame on plinth walls and a foundation slab · SCIA output · Check sheet
Status
StruCla is under active development and is not available to use online yet. These pages show the software as it is today. More comparisons with other FEM packages and with hand calculations will be published here.