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material)",[32,501,502,509],{},[47,503,504,508],{},[15,505,507],{"href":506},"\u002Fkb\u002Fdesign-checks\u002Faisc","Steel to AISC 360"," Chapters D to H, LRFD or ASD",[47,510,511],{},"E5 single angles, E6 built-up members, F9\u002FF10 tees and angles",[32,513,514,521],{},[47,515,516,520],{},[15,517,519],{"href":518},"\u002Fkb\u002Fdesign-checks\u002Fserviceability","Serviceability",": member deflection, drift, floor-frequency screen",[47,522,523],{},"Slab deflection checks (read the contour), floor acceleration, crack widths",[32,525,526,528],{},[47,527],{},[47,529,530],{},"Concrete, timber strength, masonry and aluminium design",[32,532,533,535],{},[47,534],{},[47,536,537],{},"Connections, base plates, foundations, fatigue, fire, cold-formed sections to EN 1993-1-3",[32,539,540,542],{},[47,541],{},[47,543,544],{},"Section cuts and design strips through slabs",[21,546,548],{"id":547},"size","Size",[11,550,551,552,556,557,561],{},"The free plan solves up to 500 degrees of freedom, a 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Past the plan, the ceiling is the memory the\nbrowser can give the solver, which depends on the device; see\n",[15,558,560],{"href":559},"\u002Fkb\u002Fgetting-started\u002Fsystem-requirements#memory-is-the-limit","System requirements",". 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structure in a 3D model is a mechanism, and how to restrain it.",{"path":637,"title":638,"description":639,"translated":575},"\u002Fkb\u002Fmodeling\u002Fsections-and-materials","Sections & materials","What a section and a material contribute to the stiffness matrix and the design checks, and the values worth checking twice.",{"path":75,"title":641,"description":642,"translated":575},"Slabs, walls and shells","Modelling surfaces in Elementarium — outlines, openings and thickness, how a beam or a wall attaches to a slab, local axes, and what a surface result means.",{"path":644,"title":645,"description":646,"translated":575},"\u002Fkb\u002Fmodeling\u002Fstructure-generators","Structure generators","Thirty-five parametric structures — trusses, frames, arches, towers, domes and shells — generated from a few dimensions, with supports and loads.",{"path":648,"title":649,"description":650,"translated":575},"\u002Fkb\u002Fmodeling\u002Fsupports-and-releases","Supports & releases","Pins, fixities, springs and end releases — what each one does to the stiffness matrix, and when each is right.",{"path":652,"title":653,"description":654,"translated":575},"\u002Fkb\u002Fmodeling\u002Ffirst-model","Your first model","The modeling loop end to end — geometry, sections, supports and releases — on a structure small enough to check by hand.",{"path":656,"slug":657,"title":658,"description":659,"icon":660,"articles":661},"\u002Fkb\u002Fmeshing","meshing","Meshing","Mesh density, local refinement and the quality checks that tell you when a mesh is fine enough to trust.","lucide:grid-3x3",[662,666,670],{"path":663,"title":664,"description":665,"translated":575},"\u002Fkb\u002Fmeshing\u002Felement-size","Choosing element size","Starting mesh densities for slabs, walls and rafts, and the convergence test that decides whether a mesh is fine enough.",{"path":667,"title":668,"description":669,"translated":575},"\u002Fkb\u002Fmeshing\u002Frefinement","Local refinement","Where to spend 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combinations, understanding the equations behind them, and reading the generated set critically.",{"path":688,"title":689,"description":690,"translated":575},"\u002Fkb\u002Floads\u002Fenvelopes","Envelopes","Extracting the governing value across dozens of combinations without reading every one — and the traps in doing so.",{"path":692,"title":693,"description":694,"translated":575},"\u002Fkb\u002Floads\u002Fload-cases","Load cases","Actions, self-weight, imposed loads and load arrangements — how to build cases that stay separable.",{"path":696,"title":697,"description":698,"translated":575},"\u002Fkb\u002Floads\u002Fload-panels","Load panels","Areas that hand a floor, roof or wall pressure to the members around them as line loads, one way or two way, without meshing a slab.",{"path":347,"title":700,"description":701,"translated":575},"Temperature loads","Uniform temperature change and through-depth gradients — what each does to a free and a restrained structure, and the coefficients to use.",{"path":335,"title":336,"description":703,"translated":575},"Wind to EN 1991-1-4 and snow to EN 1991-1-3, generated on a building envelope — site inputs, recognised roof shapes, the cases produced, and the limits.",{"path":705,"slug":124,"title":706,"description":707,"icon":708,"articles":709},"\u002Fkb\u002Fanalysis","Analysis types","Linear static, modal, linear buckling and second-order — what each analysis assumes, what it returns and how to read the result.","lucide:activity",[710,714,716,719,722,725],{"path":711,"title":712,"description":713,"translated":575},"\u002Fkb\u002Fanalysis\u002Fsolvers","Choosing a linear solver","Conjugate gradients with Jacobi, incomplete Cholesky or multigrid, or a direct factorisation — what each does, how to watch it, and when the choice matters.",{"path":168,"title":169,"description":715,"translated":575},"Critical load factors and buckling shapes — what α_cr means, why it is an upper bound, and how to use it for second-order effects.",{"path":144,"title":717,"description":718,"translated":575},"Linear static analysis","The workhorse analysis — what K u = f actually assumes, what it returns, and where linearity stops being a reasonable model.",{"path":156,"title":720,"description":721,"translated":575},"Modal analysis","Natural frequencies and mode shapes — mass modelling, participation factors and what the numbers are good for.",{"path":265,"title":723,"description":724,"translated":575},"Second-order analysis","P-Δ and P-δ solved by iteration, geometric imperfections to EN 1993-1-1 §5.3, and why a second-order result cannot be superposed.",{"path":726,"title":727,"description":728,"translated":575},"\u002Fkb\u002Fanalysis\u002Fverification","Verifying the solver","Closed-form cases you can build in ten minutes to test the solver — beams, frames, columns, plates, frequencies — with the expected error of each.",{"path":730,"slug":354,"title":355,"description":731,"icon":732,"articles":733},"\u002Fkb\u002Fdesign-checks","Utilisation ratios, governing cases and the clause behind every number a check reports.","lucide:clipboard-check",[734,738,742,745,748],{"path":735,"title":736,"description":737,"translated":575},"\u002Fkb\u002Fdesign-checks\u002Fnational-annexes","National annexes","Where nationally determined parameters change the answer, how to select the right annex, and what to state in the report.",{"path":739,"title":740,"description":741,"translated":575},"\u002Fkb\u002Fdesign-checks\u002Fsection-classification","Section classification","How EN 1993-1-1 Table 5.2 classifies a steel section, why the class depends on the combination, and what the check does with shapes it cannot classify.",{"path":518,"title":743,"description":744,"translated":575},"Serviceability checks","Deflection, drift and floor frequency checked member by member at SLS, to the national annexes, EN 1990:2023, IBC, AISC or EN 1995-1-1.",{"path":506,"title":746,"description":747,"translated":575},"Steel — AISC 360","Member strength to Chapters D to H, LRFD or ASD — compression buckling, lateral-torsional buckling and every C_b option written down.",{"path":374,"title":749,"description":750,"translated":575},"Steel — EN 1993-1-1","Member resistance to §6.2 and §6.3 — what is checked at every station, where buckling lengths come from, and the clauses left to you.",{"path":752,"slug":753,"title":754,"description":755,"icon":756,"articles":757},"\u002Fkb\u002Freports","reports","Results & reports","Diagrams, contours and tables in the viewport, and the calculation package you hand to a reviewer.","lucide:file-chart-column",[758,762,766,769,773,777],{"path":759,"title":760,"description":761,"translated":575},"\u002Fkb\u002Freports\u002Fexporting","Exporting a report","Assembling a calculation package a reviewer can follow — inputs, model, results and checks, in the order a calc package should be.",{"path":763,"title":764,"description":765,"translated":575},"\u002Fkb\u002Freports\u002Fifc","IFC structural models","The IFC structural analysis view in and out — what IFC2X3, IFC4 and IFC4X3 files bring, what an export carries, and what IFC cannot say.",{"path":118,"title":767,"description":768,"translated":575},"Import & export formats","IFC structural models and SAF workbooks in and out, DXF as a reference drawing, result tables as CSV or xlsx, and an OOFEM input deck.",{"path":770,"title":771,"description":772,"translated":575},"\u002Fkb\u002Freports\u002Freading-diagrams","Reading diagrams","Bending, shear and axial diagrams, contour plots and deformed shapes — the conventions behind what you are looking at.",{"path":774,"title":775,"description":776,"translated":575},"\u002Fkb\u002Freports\u002Fresult-tables","Result tables","Filtering, sorting and extracting numbers — getting the value you need out of a solved model without 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