[{"data":1,"prerenderedAt":373},["ShallowReactive",2],{"copy:tools-product:en":3,"copy:tools-common:en":206,"copy:tools-xconstruct:en":262},{"nav":4,"sections":14,"proof":19,"meta":21,"jobsTitle":28,"jobsLead":29,"manualLink":30,"capabilitiesTitle":31,"tabs":32,"tabsLabel":7,"matrix":38,"codeTopics":49,"output":63,"limitsLead":67,"limitsTable":68,"askFirst":81,"worksWith":82,"learn":114,"news":125,"faqTitle":129,"cta":130,"modules":133,"schemaHourly":204,"schemaAnnual":205},{"label":5,"overview":6,"capabilities":7,"codes":8,"output":9,"limits":10,"worksWith":11,"learn":12,"faq":13},"On this page","Overview","Capabilities","Codes","Output","Limits","Works with","Learn","FAQ",{"jobs":15,"capabilities":7,"output":9,"limits":10,"worksWith":11,"learn":12,"news":16,"faq":13,"modules":17,"proof":18},"Jobs","What's new","Modules","Users",{"title":20},"In a user’s words",{"label":22,"version":23,"versionValue":24,"system":25,"systemValue":26,"languages":27},"At a glance","Version","{version}, {date}","System","Windows 10 and 11, 64-bit · installer {mb} MB","Interface","The jobs it does","What engineers use it for, day to day.","In the manual","What it does, tab by tab",{"input":33,"analysis":34,"checks":35,"codes":36,"interfaces":37},"Model","Analysis","Design checks","Codes and annexes","Interfaces",{"caption":39,"code":40,"scope":41,"yes":42,"no":43,"na":44,"legend":45,"note":46,"aisc":47,"aci":48},"Design codes and national annexes","Code","Used for","included","not included","not applicable: a Dutch standard","✓ included · ✗ not included · – Dutch standard, other countries not applicable","The national annex is chosen per calculation, in the calculation settings. Source: the program documentation, September 2026.","Also: steel design to ANSI\u002FAISC 360-16, with the Direct Analysis Method.","Also: concrete design to ANSI\u002FACI 318-19.",{"en1990":50,"en1991":51,"en1992":52,"en1992-1-2":53,"en1993-1-1":54,"en1993-1-2":55,"en1993-1-8":56,"en1995":57,"en1996":58,"npr9998":59,"nen8700":60,"nen9997":61,"npr9096":62},"Basis of design, load combinations","Snow and wind loads (load generator)","Concrete","Concrete, fire","Steel members","Steel, fire","Steel joints","Timber","Masonry","Earthquake (Groningen)","Existing structures: partial factors","Geotechnics: pile bearing capacity","Masonry cavity walls under wind",{"pageOf":64,"formats":65,"samples":66},"page {page} of {pages}","Reports as RTF, PDF or DOCX, in the language set in the program: {languages}. The output selection decides what goes in.","Sample reports","Stated plainly, so you can decide before you start.",{"caption":69,"item":70,"limit":71,"labels":72},"Fixed limits per model","Item","Maximum",{"nodes":73,"beams":74,"members":75,"profiles":76,"connections":77,"loadCases":78,"casesPerCombination":79,"combinations":80},"Highest node number","Highest beam number","Highest member number","Profiles","Connections","Load cases","Load cases per combination","Load combinations","Check with us first",{"title":11,"lead":83,"ours":84,"theirs":85,"premium":86,"more":87,"items":88,"names":103},"The other Struct4U programs, your Word report and the software around you.","Struct4U","Other software","Premium or pay-per-use","All integrations",{"xfem4u":89,"xframe2d":89,"xbeam2d":90,"xconstruct":91,"xspreadsheets":92,"aiAssistant":93,"word":94,"ifc":95,"tekla":96,"idea":97,"excel":98,"dxf":99,"python":100,"xml":101,"directCommands":102},"Exchange models through XML.","Single beams from the frame, in steel, concrete or timber.","Connections, column bases, sections and details.","Parametric models from Excel that open in the program.","Answers from the XFEM4U manual, with the page.","The report in your own Word document, kept up to date.","Export the model for BIM.","Import (Premium or pay-per-use) and export, as XML.","Export geometry and all ULS forces.","Send model data to Excel and read it back.","Import as underlay or beams; export incl. reinforcement drawings (Premium or pay-per-use).","Build a parametric model from a script.","Import and export, also to and from XFEM4U.","Drive the program from a spreadsheet.",{"word":104,"aiAssistant":105,"ifc":106,"tekla":107,"idea":108,"excel":109,"dxf":110,"python":111,"xml":112,"directCommands":113},"Word add-in","AI Assistant","IFC","Tekla Structures","IDEA StatiCa","Excel","DXF","Python","XML","Excel DirectCommands",{"title":115,"manual":30,"manualAll":116,"videos":117,"videoLang":118,"notes":121,"releaseNotes":122,"ai":123,"aiLink":124},"Learn it","The whole manual","Videos",{"en":119,"nl":120},"English","Dutch","Release notes","Release notes (PDF)","Stuck on a menu or a setting?","Ask the AI Assistant",{"title":126,"current":127,"notes":128},"Recent releases","Current version {version}, released {date}.","All changes are in the release notes.","Questions",{"engineer":131,"pricing":132},"Talk to an engineer","See pricing",{"title":134,"lead":135,"material":136,"check":137,"all":138,"count":139,"none":140,"reset":141,"manual":142,"notes":121,"since":143,"checks":144,"materials":151,"names":154,"texts":179},"{count} modules. Filter by material or by what they check.","Every module uses the Dutch national annex. Modules marked “Manual” have a page in the manual; the others are described in the release notes.","Material","Checks","All","{shown} of {total} modules","No module matches both filters.","Show all modules","Manual","since {version}",{"connection":77,"member":145,"section":146,"wall":147,"detail":148,"foundation":149,"fire":150},"Members","Sections","Walls","Details","Foundations","Fire",{"steel":152,"concrete":52,"timber":57,"masonry":58,"geo":153},"Steel","Geotechnics",{"momentConnection":155,"columnBase":156,"shearConnection":157,"braceConnection":158,"pinConnection":159,"filletWeld":160,"bolt":161,"steelColumn":162,"builtUpSection":163,"steelFire":164,"concreteSection":165,"concreteColumn":166,"punching":167,"creep":168,"anchorage":169,"pileCap":170,"floorJoists":171,"purlin":172,"timberColumn":173,"timberFrameWall":174,"masonryWall":175,"masonryBearing":176,"cavityWall":177,"pileBearing":178},"Moment connection","Column base plate","Shear connection","Brace connection","Pin connection","Fillet welds","Single bolt","Steel column","Built-up section","Fire resistance, steel","Concrete section","Concrete column","Punching shear","Creep coefficient","Anchorage length","Pile cap on two piles","Timber floor joists","Timber purlin","Timber column","Timber-frame wall","Load-bearing masonry wall","Bearing on masonry","Cavity wall under wind","Pile bearing capacity",{"momentConnection":180,"columnBase":181,"shearConnection":182,"braceConnection":183,"pinConnection":184,"filletWeld":185,"bolt":186,"steelColumn":187,"builtUpSection":188,"steelFire":189,"concreteSection":190,"concreteColumn":191,"punching":192,"creep":193,"anchorage":194,"pileCap":195,"floorJoists":196,"purlin":197,"timberColumn":198,"timberFrameWall":199,"masonryWall":200,"masonryBearing":201,"cavityWall":202,"pileBearing":203},"Bolted or welded beam-to-column joint: M_{j,Rd} with redistribution over the bolt rows, stiffness, M-φ diagram and classification.","Concrete bearing, anchors, base plate and welds, edge effects and stiffness, after CUR\u002FBmS report 10.","Hinged connection with a fin plate, a short end plate or angle cleats.","A bracing member of an angle or a strip, with its bolted connection.","Geometry to table 3.9, resistance to table 3.10, and the contact pressure.","Check or design the throat thickness for three forces and three moments.","The resistances of one bolt, from its grade, position, spacing and plate.","Flexural and lateral-torsional buckling with end moments and a transverse load; cross-section class.","Properties of sections built from 2,700+ steel profiles, timber and basic shapes: class and A_{m}\u002FV included.","Tension members and beams that don’t buckle: section factor, clad or unclad, steel temperature over time.","M, N, V and T in ULS and SLS, reinforcement in layers, and the M-N-κ diagram.","Rectangular or circular, nominal curvature, biaxial bending, and fire by the 500 °C isotherm.","Column anywhere under the slab, enlarged heads, and an eccentric punching force.","From concrete and cement class, humidity, age at loading and notional size.","The anchorage length of a reinforcing bar.","A reinforced concrete cap on two piles.","Floor joists, with partitions as permanent or variable load.","Double bending on a sloping roof, with snow and wind.","A timber column to Eurocode 5.","Racking by method A (§9.2.4.2): sheathing buckling, end studs, compression perpendicular to the grain.","Walls supported on two or more sides, under vertical load.","A concentrated load on a masonry wall.","Walls with openings under wind; figures 17 and 18 of the NPR digitised.","From CPTs (GEF import or digitised): concrete, steel or timber piles, settlement and spring values.","Pay-per-use, per hour, billed per minute","{tier} licence, single user, per year",{"software":207,"breadcrumb":208,"priceList":209,"exVat":210,"fig":211,"fromManual":212,"slides":213,"english":220,"download":221,"explore":222,"opensNewTab":223,"tiers":224,"materials":228,"annexNames":229,"licence":237,"mobileBar":259},"Software","Breadcrumb","Price list {month}","excl. VAT","Fig.","Screenshot from the manual.",{"carousel":214,"prev":215,"next":216,"pause":217,"play":218,"position":219},"carousel","Previous picture","Next picture","Pause the slideshow","Play the slideshow","Picture {n} of {total}","(English)","Download","Explore","opens in a new tab",{"basic2d":225,"advanced":226,"premium":227},"Basic 2D","Advanced 2D + 3D","Premium",{"steel":152,"concrete":52,"timber":57,"masonry":58,"geo":153},{"nl":230,"be":231,"uk":232,"de":233,"it":234,"es":235,"pt":236},"Netherlands","Belgium","United Kingdom","Germany","Italy","Spain","Portugal",{"title":238,"ppu":239,"perHour":240,"perYear":241,"billed":242,"or":243,"included":244,"note2d":245,"note3d":246,"premium":247,"wordAddIn":248,"welcome":249,"compare":250,"spreadsheetTitle":251,"spreadsheetFree":252,"spreadsheetRuns":253,"spreadsheetTier":254,"premiumIn":255,"premiumNote":256,"ppuIncluded":257,"ppuRuns":258},"Licence","pay-per-use","\u002Fhour","\u002Fyear","Billed per minute. Never more than {cap} per computer per calendar year, all programs together.","or","Included in {tier}","Single user, on up to 2 workstations. Also in Advanced and Premium.","Single user. Includes XBeam2D, XFrame2D, XConstruct and XSpreadsheets.","Premium ({premium}\u002Fyear) adds IDEA StatiCa export, Tekla import, DXF export and Python, plus priority support. Pay-per-use includes those features too.","The Word add-in is included, with pay-per-use and with every licence.","Download free. Register in the program and get {credit} of pay-per-use credit as a welcome gift.","Compare pay-per-use and licences","Price","Free download","The models run in XFrame2D ({hourly2d}\u002Fhour) or XFEM4U ({hourly3d}\u002Fhour) on pay-per-use, billed per minute.","Or in your licence: XSpreadsheets counts in the 2D tier, from Basic 2D at {basic}\u002Fyear.","Included in Premium 2D + 3D","Single user, on up to 2 workstations. Everything in Advanced 2D + 3D, plus IDEA StatiCa export, Tekla import, DXF export and priority support.","Included with pay-per-use","You pay for the program that calculates the model: XFEM4U at {hourly3d}\u002Fhour or XFrame2D at {hourly2d}\u002Fhour, billed per minute.",{"download":260,"pricing":261},"Download free","Pricing",{"seo":263,"kicker":266,"h1":267,"lead":268,"hero":269,"jobs":272,"tabs":283,"codesIntro":310,"output":311,"limits":330,"learn":337,"releases":346,"faq":350,"close":366,"notes":369},{"title":264,"description":265},"XConstruct: connections, sections, punching · Struct4U","{count} calculation modules: steel connections, concrete sections with M-N-κ, columns, punching, timber, masonry, piles. Dutch annex. {hourly2d}\u002Fh or {basic}\u002Fyr.","Toolbox · Dutch national annex","XConstruct: the toolbox for sections, connections and details","{count} calculation modules in one program: steel connections, concrete sections and columns, punching, timber, masonry and pile bearing capacity. Every module writes its formulas out in full, to the Dutch national annex.",{"alt":270,"caption":271},"XConstruct window in three parts: the calculation explorer on the left, a bolted moment connection drawn with dimensions in the middle, and the calculation to Eurocode 3 written out on the right.","XConstruct: (1) the calculation explorer with every calculation in the project, (2) the input in the drawing, (3) the calculation as it runs. Interface in Dutch.",{"connections":273,"sections":276,"punching":279,"piles":281},{"title":274,"text":275},"Steel connections","Moment connections, column bases, shear, brace and pin connections, welds and bolts, to NEN-EN 1993-1-8.",{"title":277,"text":278},"Concrete sections and columns","Sections under M, N, V and T with the M-N-κ diagram; rectangular and circular columns, in fire too.",{"title":167,"text":280},"A round or rectangular column anywhere under the slab, enlarged heads included, to NEN-EN 1992-1-1 §6.4.",{"title":178,"text":282},"From CPTs, imported as GEF or digitised: several soundings, and soil profiles you can edit, to NEN 9997-1.",{"input":284,"checks":293,"interfaces":301},{"items":285,"fig":290},[286,287,288,289],"Change a dimension by clicking its number in the dimension line; change profiles, angles and loads in the drawing.","Every change recalculates, and the governing unity check shows at once.","Any number of calculations in one project file, in groups: copy, move and delete them in the calculation explorer.","Project data with the design working life, consequence class, national annex and NEN 8700 factors.",{"alt":291,"caption":292},"XConstruct punching module: a column under a slab drawn in plan with its control perimeter, and the input for concrete, reinforcement and the punching force.","The punching module: column position, reinforcement and control perimeter in the drawing.",{"intro":294,"items":295},"Steel, concrete, timber, masonry and geotechnics. The full list, with filters, follows below.",[296,297,298,299,300],"Steel: moment, base plate, shear, brace and pin connections, fillet welds, bolts, columns, built-up sections and fire resistance.","Concrete: sections with the M-N-κ diagram, columns (fire included), punching, creep coefficient, anchorage length and a two-pile cap.","Timber: floor joists, purlins, columns and timber-frame walls.","Masonry: load-bearing walls, bearing under a concentrated load, and cavity walls under wind.","Geotechnics: pile bearing capacity from CPTs.",{"items":302,"fig":307},[303,304,305,306],"Reports as RTF, PDF and DOCX, with every formula written out and referenced to the Eurocode.","A detailed calculation in any cross-section of a concrete member.","Merge PDF: combine the XConstruct report with other PDF files into one.","Word add-in: the report in your own Word document, kept up to date.",{"alt":308,"caption":309},"XConstruct print preview of a detailed output: shear checks of a beam web and a bolt plane to NEN-EN 1993-1-8 with the values filled in.","Detailed output of a moment connection: the shear checks to NEN-EN 1993-1-8, values filled in.","XConstruct uses the Dutch national annex (NEN-EN) and Dutch standards only.",{"title":312,"lead":313,"notes":314,"fig":327},"The M-N-κ diagram, with the numbers behind it.","The concrete section module gives the moment-curvature diagram with the bending stiffness, and lists every point: strains, stresses and moments. Nothing is hidden in a graph.",[315,318,321,324],{"title":316,"text":317},"M-N-κ diagram","Moment against curvature for the section, in ULS.",{"title":319,"text":320},"Stiffness","The bending stiffness at the working point: EI = M_{Ed} \u002F κ.",{"title":322,"text":323},"Points","Numbered 1 to 7: where the reinforcement yields (σ = f_{y}) and the concrete reaches ε_{c3}, then ε_{cu3}.",{"title":325,"text":326},"Moments","The moment at each point in kNm, on the M axis. Tables with strain, stress and stiffness per point follow.",{"alt":328,"caption":329},"Page 3 of an XConstruct report: the M-N-kappa diagram of a concrete section, with points 1 to 7, the moments at those points and the bending stiffness.","Page {page} of {pages} of the XConstruct sample report of a concrete section (version {version}, November 2022).",{"title":331,"items":332},"Where XConstruct stops",[333,334,335,336],"The Dutch national annex only (NEN-EN). No Belgian, British, German or Italian annex, and no AISC.","Each module takes design forces as input: bring them from your frame analysis or a hand calculation.","The manual documents {manualCount} of the {count} modules; the release notes describe the others.","Windows 10 and 11 only (64-bit). The installer is {mb} MB ({date}).",{"manual":338,"videos":342},{"moment":155,"column":162,"punching":339,"explorer":340,"eurocode2":341},"Punching","Calculation explorer","Eurocode 2: the clauses implemented",{"4QtzeFrqbiQ":343,"uOA_5BDblDU":344,"Xfz6Zs4m8YU":345},"Quickstart 4.1: XConstruct overview","Quickstart 4.2: concrete column","XConstruct demo 2025",[347,348,349],"New modules: fire resistance of steel members, and timber column. Pile bearing capacity to NEN 9997-1:2025+C1:2025, with soil profiles you enter and link to CPTs.","New shear connection module (fin plate, short end plate or angle cleats). Two new moment connection types. .NET 10.","Output as a Word document (.docx), with the formulas as Word equations.",[351,354,357,360,363],{"q":352,"a":353},"Which national annex does XConstruct use?","Only the Dutch one: NEN-EN with the Dutch national annexes, plus Dutch standards such as NEN 9997-1, NPR 9096-1-1 and NEN 8700.",{"q":355,"a":356},"Can I keep all the calculations of a project together?","Yes. One project file holds any number of calculations, in groups, and prints them as one report.",{"q":358,"a":359},"Does it give an M-N-κ diagram?","Yes. The concrete section module draws the M-N-κ diagram and lists the stiffness and every point behind it.",{"q":361,"a":362},"Where do the forces come from?","You enter the design forces yourself, for example from XFrame2D, XFEM4U or a hand calculation.",{"q":364,"a":365},"What does XConstruct cost?","{hourly2d} per hour on pay-per-use, billed per minute. Or the Basic 2D licence at {basic} per year, which also includes XBeam2D, XFrame2D and XSpreadsheets.",{"title":367,"text":368},"Run your next detail in XConstruct.","Download free and register in the program: you get {credit} of pay-per-use credit as a welcome gift.",{"capabilities":370,"output":371,"limits":372},"Every change recalculates; the governing unity check shows on screen (manual: Introduction).","From the sample report of November 2022 (version 2023.1).","Source: the XConstruct manual (References) and the release notes.",1793818601989]