[{"data":1,"prerenderedAt":81},["ShallowReactive",2],{"copy:newsletters:en":3,"newsletters:en:2026-08-13-fire-resistance-of-steel":54},{"seoTitle":4,"description":5,"ui":6,"label":9,"title":9,"lead":10,"listLabel":11,"filter":12,"types":22,"langTag":28,"meta":31,"notes":34,"nav":47,"cta":51},"Newsletters since 2015 · Struct4U","The Struct4U newsletters since 2015: new versions of XFEM4U, XFrame2D, XBeam2D and XConstruct, news, training and events, in English and Dutch.",{"home":7,"breadcrumb":8},"Home","Breadcrumb","Newsletters","The newsletters Struct4U sent to its users since 2015: new versions, new modules, news, training and events. Each one as it went out; the programs and prices have changed since.","All newsletters",{"label":13,"year":14,"allYears":15,"program":16,"allPrograms":17,"count":18,"countOne":19,"empty":20,"reset":21},"Filter the newsletters","Year","All years","Program","All programs","{n} newsletters","1 newsletter","No newsletter matches these filters.","Show all newsletters",{"release":23,"news":24,"training":25,"event":26,"notice":27},"Release","News","Training","Event","Notice",{"en":29,"nl":30},"English","Dutch",{"sent":32,"programs":33},"Sent","Programs",{"translatedFrom":35,"onlyIn":38,"onlyInShort":41,"dated":44,"outdatedPrices":45,"currentPrices":46},{"en":36,"nl":37},"Translated from English","Translated from Dutch",{"en":39,"nl":40},"This newsletter only appeared in English.","This newsletter only appeared in Dutch.",{"en":42,"nl":43},"In English","In Dutch","Struct4U newsletter, {date}:","The prices in this newsletter are out of date.","See the current prices",{"label":48,"older":49,"newer":50,"all":11},"More newsletters","Older","Newer",{"title":52,"text":53},"See what the software does today","Every check names its clause and shows the values that went in.",{"slug":55,"date":56,"type":57,"products":58,"outdatedPrices":61,"updatedAt":62,"lang":63,"onlyIn":64,"title":65,"summary":66,"description":66,"html":67,"translated":61,"image":68,"older":72,"newer":76,"sameTitle":80},"2026-08-13-fire-resistance-of-steel","2026-08-13","release",[59,60],"xframe2d","xbeam2d",false,"2026-10-12T14:09:23Z","en",null,"Fire resistance of steel","XFrame2D 2027.6 and XBeam2D 2027.5 add the calculation and check of the fire resistance of steel structures.","\u003Cp>There are new releases available of\u003C\u002Fp>\n\u003Cp>\u003Cem>XFrame2D 2027.6\u003C\u002Fem> \u003Ca href=\"https:\u002F\u002Fsoftware.struct4u.com\u002Fdownloads\u002FXFrame2D\u002FXFrame2d.msi\" rel=\"noopener noreferrer\">download\u003C\u002Fa> \u003Ca href=\"https:\u002F\u002Fsoftware.struct4u.com\u002Fdownloads\u002FXFrame2D\u002FRelease_notes_XFrame2D_en.pdf\" rel=\"noopener noreferrer\">release notes\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp>\u003Cem>XBeam2D 2027.5\u003C\u002Fem> \u003Ca href=\"https:\u002F\u002Fsoftware.struct4u.com\u002Fdownloads\u002FXBeam2D\u002FXBeam2d.msi\" rel=\"noopener noreferrer\">download\u003C\u002Fa> \u003Ca href=\"https:\u002F\u002Fsoftware.struct4u.com\u002Fdownloads\u002FXBeam2D\u002FRelease_notes_XBeam2D_en.pdf\" rel=\"noopener noreferrer\">release notes\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp>The most important new feature:\u003C\u002Fp>\n\u003Ch2 class=\"nlm-rh\">\u003Cspan class=\"nlm-no\">1.\u003C\u002Fspan> \u003Cspan class=\"nlm-badge nlm-badge-new\">New\u003C\u002Fspan> Fire Resistance of Steel Structures\u003C\u002Fh2>\n\u003Cp>In our August 1 newsletter, you could already read about the new feature in \u003Cstrong>XFEM4U\u003C\u002Fstrong> that allows you to calculate and verify the fire resistance of steel structures. This is a much-requested enhancement that provides you with a quick and transparent understanding of your structure’s fire resistance.\u003C\u002Fp>\n\u003Cp>We were soon asked: Is this also possible in \u003Cstrong>XFrame2D\u003C\u002Fstrong> and \u003Cstrong>XBeam2D\u003C\u002Fstrong>?\u003C\u002Fp>\n\u003Cp>The answer is now: \u003Cstrong>yes!\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>You can now also calculate and verify the fire resistance of steel structures in \u003Cstrong>XFrame2D\u003C\u002Fstrong> and \u003Cstrong>XBeam2D\u003C\u002Fstrong>. We’ve used the same methodology and principles as in \u003Cstrong>XFEM4U\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Cp>The calculation is fully iterative. For each member, the temperature development is determined, among other factors, and changing material properties are taken into account. The software then automatically determines when the critical steel temperature is reached and what the corresponding fire resistance rating is in minutes.\u003C\u002Fp>\n\u003Cp>You can analyze both \u003Cstrong>unclad\u003C\u002Fstrong> and \u003Cstrong>fire-resistant clad\u003C\u002Fstrong> steel sections. For the cladding, you can easily choose between profile-following or box encasement systems. In addition, an extensive library is included with the most commonly used fire-resistant materials and various coating thicknesses.\u003C\u002Fp>\n\u003Cp>\u003Cimg src=\"\u002Fnewsletters\u002Fimg\u002F2026-08-13-fire-resistance-of-steel\u002F01-717.webp?v=c66c31e56ac0\" width=\"717\" height=\"780\" alt=\"XFrame2D: Fire tab of a beam with the Fire data dialog for a box encasement cladding, with a frame in the background\" loading=\"eager\" decoding=\"async\">\u003C\u002Fp>\n\u003Ch3>More Than Just Temperature\u003C\u002Fh3>\n\u003Cp>During a fire, a steel section continues to heat up. As the temperature rises, both the \u003Cstrong>yield strength\u003C\u002Fstrong> and the \u003Cstrong>modulus of elasticity\u003C\u002Fstrong> decrease. As a result, the load-bearing capacity changes continuously.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>XFrame2d\u003C\u002Fstrong> \u002F \u003Cstrong>XBeam2D\u003C\u002Fstrong> calculates this process entirely iteratively. For each member, the temperature evolution over time is determined, after which the system automatically identifies when the member loses its load-bearing capacity. This point in time—expressed in minutes from the moment the fire starts—represents the member’s \u003Cstrong>fire resistance\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Cp>This complete calculation is performed extremely quickly, even for large structures.\u003C\u002Fp>\n\u003Cp>\u003Cimg src=\"\u002Fnewsletters\u002Fimg\u002F2026-08-13-fire-resistance-of-steel\u002F02-590.webp?v=699471f72bbf\" width=\"590\" height=\"510\" alt=\"Graph of fire and steel temperature over time, with the steel reaching 630 C after 85 minutes against a requirement of 60 minutes\" loading=\"lazy\" decoding=\"async\">\u003C\u002Fp>\n\u003Ch3>Maximum Flexibility\u003C\u002Fh3>\n\u003Cp>Not every beam needs to remain intact in a fire situation. That’s why you can easily specify which beams are allowed to fail in the event of a fire. This allows you to simulate realistic fire scenarios and assess the robustness of the structure.\u003C\u002Fp>\n\u003Ch3>No Black Box—Just Complete Transparency\u003C\u002Fh3>\n\u003Cp>As you’ve come to expect from XFEM4U, we don’t just show you the final result.\u003C\u002Fp>\n\u003Cp>The entire calculation is transparent. You can follow it step by step:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>how the temperature of each member evolves;\u003C\u002Fli>\n\u003Cli>how the material properties change;\u003C\u002Fli>\n\u003Cli>how the critical steel temperature is determined;\u003C\u002Fli>\n\u003Cli>and how the fire resistance is ultimately calculated.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>This allows you not only to use the results but also to verify and justify them. Transparency is central to Struct4U —including with this new functionality.\u003C\u002Fp>\n\u003Ch3>Another powerful addition to XFrame2D and XBeam2D\u003C\u002Fh3>\n\u003Cp>With just a few mouse clicks, you can now also verify the fire resistance of your steel structure. Fast, reliable, fully transparent, and integrated into the familiar environment.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>Curious about how easy it is?\u003C\u002Fstrong> \u003Ca href=\"https:\u002F\u002Fyoutu.be\u002F1iXjaofLlIQ\" rel=\"noopener noreferrer\">Click here for a demo\u003C\u002Fa>.\u003C\u002Fp>\n\u003Cp>To stay up to date with the latest developments you can follow us on \u003Ca href=\"https:\u002F\u002Fwww.linkedin.com\u002Fcompany\u002Fstruct4u\u002F\" rel=\"noopener noreferrer\">Linkedin\u003C\u002Fa>.\u003C\u002Fp>\n",{"src":69,"width":70,"height":71},"\u002Fnewsletters\u002Fimg\u002F2026-08-13-fire-resistance-of-steel\u002F01-717.webp?v=c66c31e56ac0",717,780,{"slug":73,"title":74,"date":75,"lang":63},"2026-08-02-fire-resistance-of-steel-export-to-ifc","Fire resistance of steel \u002F Export to IFC.","2026-08-02",{"slug":77,"title":78,"date":79,"lang":63},"2026-08-16-adjustments-and-rearrangement-of-rates","Adjustments and rearrangement of rates","2026-08-16",1,1792702104919]