{"id":17183,"date":"2026-06-30T09:34:11","date_gmt":"2026-06-30T09:34:11","guid":{"rendered":"https:\/\/www.dgcrane.com\/?p=17183"},"modified":"2026-06-30T09:35:20","modified_gmt":"2026-06-30T09:35:20","slug":"crane-main-girder-section-moment-of-inertia-calculator","status":"publish","type":"post","link":"https:\/\/www.dgcrane.com\/no\/crane-main-girder-section-moment-of-inertia-calculator\/","title":{"rendered":"Treghetsmomentkalkulator for kranens hovedbjelkeseksjon"},"content":{"rendered":"<div id=\"calculator\">\n    <style>\n        \/* \u4ec5\u4f5c\u7528\u4e8e#calculator\u5185\u90e8\uff0c\u5168\u5c40\u65e0\u6c61\u67d3\uff0c\u56fa\u5b9a\u989c\u8272\u53d8\u91cf *\/\n        #calculator {\n            --primary-color: #0a3487;\n            --primary-hover: #F58423;\n            --error-color: #e53935;\n            --bg-color: #EAEEF7;\n            --text-color: #4a4a4a;\n            max-width: 600px;\n            padding: 30px;\n            background: var(--bg-color);\n            font-family: Arial, sans-serif;\n            color: var(--text-color);\n            box-sizing: border-box;\n        }\n        #calculator .calc-title {\n            font-size: 18px;\n            margin: 0 0 8px 0;\n            font-weight: 600;\n        }\n        #calculator .sub-title {\n            font-size: 16px;\n            margin: 10px 0 6px;\n            font-weight: 600;\n            border-bottom: 1px solid #ccc;\n            padding-bottom: 3px;\n        }\n        \/* \u8f93\u5165\u533a\u57df\u4e24\u5217\u5e03\u5c40 *\/\n        #calculator .input-grid {\n            display: grid;\n            grid-template-columns: 1fr 1fr;\n            gap: 10px;\n            margin-bottom: 8px;\n        }\n        #calculator .field-wrap {\n            margin-bottom: 6px;\n        }\n        #calculator label {\n            display: block;\n            font-size: 14px;\n            margin-bottom: 3px;\n        }\n        #calculator input {\n            width: 100%;\n            height: 36px;\n            font-size: 16px;\n            padding: 0 10px;\n            border: 1px solid #ccc;\n            border-radius: 0;\n            box-sizing: border-box;\n            transition: 0.2s ease;\n        }\n        #calculator input:focus {\n            outline: none;\n            border: 2px solid var(--primary-color);\n        }\n        #calculator input.error {\n            border: 2px solid var(--error-color);\n        }\n        #calculator .error-msg {\n            font-size: 12px;\n            color: var(--error-color);\n            margin-top: 1px;\n            display: none;\n        }\n        #calculator .btn-group {\n            display: flex;\n            gap: 10px;\n            margin: 10px 0 8px;\n        }\n        #calculator button {\n            flex: 1;\n            height: 34px;\n            line-height: 34px;\n            font-size: 14px;\n            border: none;\n            border-radius: 0;\n            cursor: pointer;\n            transition: 0.2s ease;\n        }\n        #calculator .calc-btn {\n            background: var(--primary-color);\n            color: #fff;\n        }\n        #calculator .calc-btn:hover {\n            background: var(--primary-hover);\n        }\n        #calculator .reset-btn {\n            background: #fff;\n            color: var(--primary-color);\n            border: 1px solid var(--primary-color);\n        }\n        \/* \u4e2d\u95f4\u53c2\u6570 \u6bcf\u63924\u5217\u7d27\u51d1\u5e03\u5c40 *\/\n        #calculator .mid-grid-4 {\n            display: grid;\n            grid-template-columns: repeat(4, 1fr);\n            gap: 8px;\n            margin: 4px 0;\n        }\n        \/* \u5f62\u5fc3\u5355\u72ec\u5c45\u4e2d\u7f51\u683c *\/\n        #calculator .mid-grid-center {\n            display: grid;\n            grid-template-columns: 1fr;\n            max-width: 280px;\n            margin: 4px auto;\n        }\n        #calculator .result-label {\n            font-size: 13px;\n            margin-bottom: 2px;\n        }\n        #calculator .result-label.final-label {\n            font-size: 16px;\n            font-weight: 600;\n            margin-bottom: 4px;\n        }\n        #calculator .result-value {\n            font-size: 18px;\n            font-weight: 600;\n            word-break: break-all;\n            background: #fff;\n            padding: 4px 8px;\n            border:1px solid #ccc;\n        }\n        \/* \u6700\u7ec8\u7ed3\u679c\u5355\u72ec\u884c *\/\n        #calculator .final-row {\n            margin-top:4px;\n        }\n        \/* \u79fb\u52a8\u7aef\u9002\u914d 768px\u4ee5\u4e0b *\/\n        @media (max-width: 768px) {\n            #calculator .input-grid {\n                grid-template-columns: 1fr;\n            }\n            #calculator .mid-grid-4 {\n                grid-template-columns: repeat(2, 1fr);\n            }\n            #calculator input {\n                height: 0.7rem;\n                font-size: 0.28rem;\n            }\n            #calculator button {\n                height: 0.7rem;\n                line-height: 0.7rem;\n                font-size: 0.28rem;\n            }\n            #calculator .btn-group {\n                flex-direction: column;\n            }\n            #calculator button {\n                width: 100%;\n            }\n        }\n    <\/style>\n\n    <!-- \u6a21\u57571\uff1a\u624b\u52a8\u8f93\u5165\u539f\u59cb\u622a\u9762\u5c3a\u5bf8\uff0c\u6807\u9898\u4e0b\u65b9\u65e0\u591a\u4f59\u7a7a\u767d -->\n    <h4 class=\"sub-title\">1. M\u00e5l p\u00e5 manuell inndataseksjon<\/h4>\n    <div class=\"input-grid\">\n        <div class=\"field-wrap\">\n            <label for=\"h\">Bjelkeh\u00f8yde h (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"h\" placeholder=\"f.eks. 111,6\">\n            <div class=\"error-msg\" id=\"err-h\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n        <div class=\"field-wrap\">\n            <label for=\"B1\">Toppflensbredde B1 (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"B1\" placeholder=\"f.eks. 50\">\n            <div class=\"error-msg\" id=\"err-B1\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n        <div class=\"field-wrap\">\n            <label for=\"B2\">Bunnflensbredde B2 (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"B2\" placeholder=\"f.eks. 50\">\n            <div class=\"error-msg\" id=\"err-B2\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n        <div class=\"field-wrap\">\n            <label for=\"t1\">Toppflenstykkelse t1 (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"t1\" placeholder=\"f.eks. 0,8\">\n            <div class=\"error-msg\" id=\"err-t1\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n        <div class=\"field-wrap\">\n            <label for=\"t2\">Tykkelse p\u00e5 bunnflens t2 (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"t2\" placeholder=\"f.eks. 0,8\">\n            <div class=\"error-msg\" id=\"err-t2\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n        <div class=\"field-wrap\">\n            <label for=\"delta1\">Hovednetttykkelse \u03b41 (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"delta1\" placeholder=\"f.eks. 0,6\">\n            <div class=\"error-msg\" id=\"err-delta1\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n        <div class=\"field-wrap\">\n            <label for=\"delta2\">Sekund\u00e6r webtykkelse \u03b42 (cm)<\/label>\n            <input type=\"number\" step=\"0.01\" id=\"delta2\" placeholder=\"f.eks. 0,6\">\n            <div class=\"error-msg\" id=\"err-delta2\">Vennligst skriv inn et gyldig nummer<\/div>\n        <\/div>\n    <\/div>\n\n    <!-- \u6a21\u57572\uff1a\u81ea\u52a8\u8ba1\u7b97\u4e2d\u95f4\u53c2\u6570 \u6309\u94ae\u4e0a\u65b9 -->\n    <h4 class=\"sub-title\">2. Automatisk beregnede mellomliggende parametere<\/h4>\n    <!-- A1 A2 A3 A4 \u4e00\u63924\u4e2a -->\n    <div class=\"mid-grid-4\">\n        <div class=\"result-col\">\n            <div class=\"result-label\">A1 (cm\u00b2)<\/div>\n            <div class=\"result-value\" id=\"res-A1\">&#8212;<\/div>\n        <\/div>\n        <div class=\"result-col\">\n            <div class=\"result-label\">A2 (cm\u00b2)<\/div>\n            <div class=\"result-value\" id=\"res-A2\">&#8212;<\/div>\n        <\/div>\n        <div class=\"result-col\">\n            <div class=\"result-label\">A3 (cm\u00b2)<\/div>\n            <div class=\"result-value\" id=\"res-A3\">&#8212;<\/div>\n        <\/div>\n        <div class=\"result-col\">\n            <div class=\"result-label\">A4 (cm\u00b2)<\/div>\n            <div class=\"result-value\" id=\"res-A4\">&#8212;<\/div>\n        <\/div>\n    <\/div>\n    <!-- d1 d2 d3 d4 \u4e00\u63924\u4e2a -->\n    <div class=\"mid-grid-4\">\n        <div class=\"result-col\">\n            <div class=\"result-label\">d1<\/div>\n            <div class=\"result-value\" id=\"res-d1\">&#8212;<\/div>\n        <\/div>\n        <div class=\"result-col\">\n            <div class=\"result-label\">d2<\/div>\n            <div class=\"result-value\" id=\"res-d2\">&#8212;<\/div>\n        <\/div>\n        <div class=\"result-col\">\n            <div class=\"result-label\">d3<\/div>\n            <div class=\"result-value\" id=\"res-d3\">&#8212;<\/div>\n        <\/div>\n        <div class=\"result-col\">\n            <div class=\"result-label\">d4<\/div>\n            <div class=\"result-value\" id=\"res-d4\">&#8212;<\/div>\n        <\/div>\n    <\/div>\n    <!-- \u6574\u4f53\u5f62\u5fc3\u5355\u72ec\u5c45\u4e2d\u5c55\u793a -->\n    <div class=\"mid-grid-center\">\n        <div class=\"result-col\">\n            <div class=\"result-label\">Globalt sentroid \u0233<\/div>\n            <div class=\"result-value\" id=\"res-ybar\">&#8212;<\/div>\n        <\/div>\n    <\/div>\n\n    <!-- \u64cd\u4f5c\u6309\u94ae -->\n    <div class=\"btn-group\">\n        <button class=\"calc-btn\" id=\"calc-trigger\">Kalkulere<\/button>\n        <button class=\"reset-btn\" id=\"calc-reset\">Tilbakestill alt<\/button>\n    <\/div>\n\n    <!-- \u65e0\u4e09\u7ea7\u6807\u9898\uff0cIx\u6807\u7b7e\u540ch4\u5b57\u53f7 -->\n    <div class=\"final-row\">\n        <div class=\"result-label final-label\">Treghetsmoment Ix (cm\u2074):<\/div>\n        <div class=\"result-value\" id=\"res-Ix\">&#8212;<\/div>\n    <\/div>\n\n    <script>\n        const BoxBeamCalc = {\n            setError(inputId, errId) {\n                const input = document.getElementById(inputId);\n                const errBox = document.getElementById(errId);\n                input.classList.add('error');\n                errBox.style.display = 'block';\n            },\n            clearError(inputId, errId) {\n                const input = document.getElementById(inputId);\n                const errBox = document.getElementById(errId);\n                input.classList.remove('error');\n                errBox.style.display = 'none';\n            },\n            validateInput(inputId, errId) {\n                const val = document.getElementById(inputId).value.trim();\n                if (val === '') return false;\n                const num = parseFloat(val);\n                if (isNaN(num) || num <= 0) {\n                    this.setError(inputId, errId);\n                    return false;\n                }\n                this.clearError(inputId, errId);\n                return num;\n            },\n            resetAll() {\n                const inputIds = ['h','B1','B2','t1','t2','delta1','delta2'];\n                const errIds = ['err-h','err-B1','err-B2','err-t1','err-t2','err-delta1','err-delta2'];\n                inputIds.forEach((id, idx) => {\n                    document.getElementById(id).value = '';\n                    this.clearError(id, errIds[idx]);\n                });\n                document.getElementById('res-A1').innerText = '--';\n                document.getElementById('res-A2').innerText = '--';\n                document.getElementById('res-A3').innerText = '--';\n                document.getElementById('res-A4').innerText = '--';\n                document.getElementById('res-ybar').innerText = '--';\n                document.getElementById('res-d1').innerText = '--';\n                document.getElementById('res-d2').innerText = '--';\n                document.getElementById('res-d3').innerText = '--';\n                document.getElementById('res-d4').innerText = '--';\n                document.getElementById('res-Ix').innerText = '--';\n            },\n            compute() {\n                const h = this.validateInput('h','err-h');\n                const B1 = this.validateInput('B1','err-B1');\n                const B2 = this.validateInput('B2','err-B2');\n                const t1 = this.validateInput('t1','err-t1');\n                const t2 = this.validateInput('t2','err-t2');\n                const delta1 = this.validateInput('delta1','err-delta1');\n                const delta2 = this.validateInput('delta2','err-delta2');\n                if(!h||!B1||!B2||!t1||!t2||!delta1||!delta2) return;\n\n                const hw = h - t1 - t2;\n                if(hw <= 0) return;\n\n                const A1 = B1 * t1;\n                const A2 = B2 * t2;\n                const A3 = hw * delta1;\n                const A4 = hw * delta2;\n                const totalA = A1 + A2 + A3 + A4;\n\n                const y1 = h - t1\/2;\n                const y2 = t2\/2;\n                const y3 = t2 + hw\/2;\n                const y4 = t2 + hw\/2;\n\n                const yBar = (A1*y1 + A2*y2 + A3*y3 + A4*y4) \/ totalA;\n\n                const d1 = yBar - y1;\n                const d2 = yBar - y2;\n                const d3 = yBar - y3;\n                const d4 = yBar - y4;\n\n                const Iself1 = (B1 * Math.pow(t1,3)) \/ 12;\n                const Iself2 = (B2 * Math.pow(t2,3)) \/ 12;\n                const Iself3 = (delta1 * Math.pow(hw,3)) \/ 12;\n                const Iself4 = (delta2 * Math.pow(hw,3)) \/ 12;\n\n                const Ix = Iself1 + A1*Math.pow(d1,2)\n                         + Iself2 + A2*Math.pow(d2,2)\n                         + Iself3 + A3*Math.pow(d3,2)\n                         + Iself4 + A4*Math.pow(d4,2);\n\n                document.getElementById('res-A1').innerText = A1.toFixed(2);\n                document.getElementById('res-A2').innerText = A2.toFixed(2);\n                document.getElementById('res-A3').innerText = A3.toFixed(2);\n                document.getElementById('res-A4').innerText = A4.toFixed(2);\n                document.getElementById('res-ybar').innerText = yBar.toFixed(2);\n\n                document.getElementById('res-d1').innerText = d1.toFixed(2);\n                document.getElementById('res-d2').innerText = d2.toFixed(2);\n                document.getElementById('res-d3').innerText = d3.toFixed(2);\n                document.getElementById('res-d4').innerText = d4.toFixed(2);\n\n                document.getElementById('res-Ix').innerText = Ix.toFixed(2);\n            },\n            bindEvents() {\n                document.getElementById('calc-trigger').addEventListener('click', ()=>this.compute());\n                document.getElementById('calc-reset').addEventListener('click', ()=>this.resetAll());\n                const inputList = document.querySelectorAll('#calculator input');\n                inputList.forEach(input => {\n                    const errId = 'err-' + input.id;\n                    input.addEventListener('input', ()=>this.clearError(input.id, errId));\n                });\n            }\n        };\n        document.addEventListener('DOMContentLoaded', ()=>BoxBeamCalc.bindEvents());\n    <\/script>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Bruksanvisning<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Parametrene i denne treghetsmomentkalkulatoren for kranens hovedbjelkeseksjon <br>gjelder prim\u00e6rt for rektangul\u00e6re hulprofiler.<\/li>\n\n\n\n<li>Jeg<sub>x<\/sub> tilsvarer den vertikale belastningen og den vertikale b\u00f8yingen av kranens hoved <br>bjelke; denne verdien kan settes direkte inn i beregningen av hovedbjelken <br>bjelkens avb\u00f8yning.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:55px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Formel for kalkulator for treghetsmoment for kranens hovedbjelkeprofil<\/h2>\n\n\n\n<!DOCTYPE html>\n<html lang=\"zh-CN\">\n<head>\n    <meta charset=\"UTF-8\">\n    <title>\u8d77\u91cd\u673a\u4e3b\u6881\u622a\u9762\u60ef\u6027\u77e9\u516c\u5f0f<\/title>\n    <!-- MathJax \u6e32\u67d3\u914d\u7f6e -->\n    <script>\n        window.MathJax = {\n            tex: {\n                inlineMath: [['$', '$'], ['\\\\(', '\\\\)']],\n                displayMath: [['$$', '$$'], ['\\\\[', '\\\\]']]\n            },\n            svg: { fontCache: 'global' }\n        };\n    <\/script>\n    <script id=\"MathJax-script\" async src=\"https:\/\/cdn.jsdelivr.net\/npm\/mathjax@3\/es5\/tex-mml-chtml.js\"><\/script>\n    <style>\n        .formula {\n            font-family: \"Microsoft YaHei\", sans-serif;\n            font-size: 1.2em;\n            margin: 20px 0;\n            padding: 15px;\n            background: #ffffff;\n            border-radius: 8px;\n            \/* \u5bb9\u5668\u5185\u5bb9\u5de6\u5bf9\u9f50 *\/\n            text-align: left;\n        }\n        \/* \u5f3a\u5236 MathJax \u5757\u516c\u5f0f\u5de6\u5bf9\u9f50 *\/\n        .mjx-container[jax=\"CHTML\"][display=\"true\"],\n        .mjx-container[jax=\"SVG\"][display=\"true\"] {\n            text-align: left !important;\n            margin: 0 !important;\n        }\n    <\/style>\n<\/head>\n<body>\n\n<div class=\"formula\">\n\\[ \\begin{aligned} I_x &amp;= \\frac{B_1 \\times t_1^3}{12} + A_1 d_1^2 \\\\ &amp;\\quad + \\frac{B_2 \\times t_2^3}{12} + A_2 d_2^2 \\\\ &amp;\\quad + \\frac{\\\u03941 \\times h_w^3}{12} + A_3 d_3^2 \\\\ &amp;\\quad + \\frac{\\\u03942 \\times h_w^3}{12} + A_4 d_4^2 \\end{aligned} \\]\n<\/div>\n\n<\/body>\n<\/html>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B1: Bredden p\u00e5 den \u00f8vre flensen (enhet: cm)<\/li>\n\n\n\n<li>B2: Bredden p\u00e5 den nedre flensen (enhet: cm)<\/li>\n\n\n\n<li>t1: Tykkelsen p\u00e5 den \u00f8vre flensen (enhet: cm)<\/li>\n\n\n\n<li>t2: Tykkelsen p\u00e5 den nedre flensen (enhet: cm)<\/li>\n\n\n\n<li>A1: Arealet av den \u00f8vre flensen (enhet: cm<sup>2<\/sup>)<\/li>\n\n\n\n<li>A2: Arealet av den nedre flensen (enhet: cm<sup>2<\/sup>)<\/li>\n\n\n\n<li>A3: Hovednettareal (enhet: cm<sup>2<\/sup>)<\/li>\n\n\n\n<li>A4: Delnettareal (enhet: cm<sup>2<\/sup>)<\/li>\n\n\n\n<li>d1: Avstanden mellom \u00f8vre flens og seksjonens tyngdepunkt<\/li>\n\n\n\n<li>d2: Avstanden mellom den nedre flensen og seksjonens tyngdepunkt<\/li>\n\n\n\n<li>d3: Avstanden mellom hovednettet og seksjonens tyngdepunkt<\/li>\n\n\n\n<li>d4: Avstanden mellom sekund\u00e6rnettet og seksjonens tyngdepunkt<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Plate-til-seksjons sentroidavstand<\/h3>\n\n\n\n<!DOCTYPE html>\n<html lang=\"zh-CN\">\n<head>\n    <meta charset=\"UTF-8\">\n    <title>\u5404\u677f\u5f62\u5fc3\u8ddd\u79bb\u516c\u5f0f<\/title>\n    <!-- MathJax \u6e32\u67d3\u914d\u7f6e -->\n    <script>\n        window.MathJax = {\n            tex: {\n                inlineMath: [['$', '$'], ['\\\\(', '\\\\)']],\n                displayMath: [['$$', '$$'], ['\\\\[', '\\\\]']]\n            },\n            svg: { fontCache: 'global' }\n        };\n    <\/script>\n    <script id=\"MathJax-script\" async src=\"https:\/\/cdn.jsdelivr.net\/npm\/mathjax@3\/es5\/tex-mml-chtml.js\"><\/script>\n    <style>\n        .formula {\n            font-family: \"Microsoft YaHei\", sans-serif;\n            font-size: 1.2em;\n            margin: 20px 0;\n            padding: 15px;\n            background: #ffffff;\n            border-radius: 8px;\n        }\n    <\/style>\n<\/head>\n<body>\n<div class=\"formula\">\n\\[ \\begin{aligned} d_1 &amp;= \\bar{y} \u2013 y_1 \\\\ d_2 &amp;= \\bar{y} \u2013 y_2 \\\\ d_3 &amp;= \\bar{y} \u2013 y_3 \\\\ d_4 &amp;= \\bar{y} \u2013 y_4 \\end{aligned} \\]\n<\/div>\n<\/body>\n<\/html>\n\n\n\n<ul class=\"wp-block-list\">\n<li>y1\/y2\/y3\/y4: Y-koordinaten til hver plates sentroid i tverrsnitt<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Seksjonscentroid<\/h3>\n\n\n\n<!DOCTYPE html>\n<html lang=\"zh-CN\">\n<head>\n    <meta charset=\"UTF-8\">\n    <!-- MathJax \u6e32\u67d3\u914d\u7f6e -->\n    <script>\n        window.MathJax = {\n            tex: {\n                inlineMath: [['$', '$'], ['\\\\(', '\\\\)']],\n                displayMath: [['$$', '$$'], ['\\\\[', '\\\\]']]\n            },\n            svg: { fontCache: 'global' }\n        };\n    <\/script>\n    <script id=\"MathJax-script\" async src=\"https:\/\/cdn.jsdelivr.net\/npm\/mathjax@3\/es5\/tex-mml-chtml.js\"><\/script>\n    <style>\n        .formula {\n            font-family: \"Microsoft YaHei\", sans-serif;\n            font-size: 1.2em;\n            margin: 20px 0;\n            padding: 15px;\n            background: #ffffff;\n            border-radius: 8px;\n        }\n    <\/style>\n<\/head>\n<body>\n<div class=\"formula\">\n\\[ \\bar{y} = h_x = \\frac{A_1 y_1 + A_2 y_2 + A_3 y_3 + A_4 y_4}{A_1 + A_2 + A_3 + A_4} \\]\n<\/div>\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\">Gjeldende produkter<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Overhead kraner<\/li>\n\n\n\n<li>Gantry kraner<\/li>\n\n\n\n<li>Verfts portalkraner<\/li>\n\n\n\n<li>Skinnemonterte portalkraner (RMG)<\/li>\n\n\n\n<li>Gummihjulsportalkraner (RTG)<\/li>\n\n\n\n<li>Metallurgiske kraner<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"Treghetsmomentkalkulatoren for kranens hovedbjelkeseksjon beregner b\u00f8yestivheten til hovedbjelkene. Et h\u00f8yere treghetsmoment for hovedbjelkeseksjon indikerer st\u00f8rre stivhet og mindre deformasjon. For traverskraner og portalkraner definerer den direkte lastekapasiteten og evaluerer risikoen for plastisk deformasjon og brudd. Denne treghetsmomentkalkulatoren for kranens hovedbjelkeseksjon beregner ogs\u00e5 nedb\u00f8yning for \u00e5 forhindre bjelkeforvrengning og svaie under bevegelse og bremsing.","protected":false},"author":8,"featured_media":17193,"parent":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"single-onlinetools.php","format":"standard","meta":{"_acf_changed":false,"rank_math_lock_modified_date":false,"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[1059],"tags":[],"class_list":["post-17183","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-tools"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/posts\/17183"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/comments?post=17183"}],"version-history":[{"count":15,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/posts\/17183\/revisions"}],"predecessor-version":[{"id":17200,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/posts\/17183\/revisions\/17200"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/media\/17193"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/media?parent=17183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/categories?post=17183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/no\/wp-json\/wp\/v2\/tags?post=17183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}