{"id":17213,"date":"2026-07-07T02:18:44","date_gmt":"2026-07-07T02:18:44","guid":{"rendered":"https:\/\/www.dgcrane.com\/?p=17213"},"modified":"2026-07-07T02:18:48","modified_gmt":"2026-07-07T02:18:48","slug":"overhead-and-gantry-crane-deflection-calculator","status":"publish","type":"post","link":"https:\/\/www.dgcrane.com\/ja\/overhead-and-gantry-crane-deflection-calculator\/","title":{"rendered":"\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u305f\u308f\u307f\u8a08\u7b97\u30c4\u30fc\u30eb"},"content":{"rendered":"<!-- WordPress \u53ef\u76f4\u63a5\u7c98\u8d34\u5b8c\u6574\u4ee3\u7801\u5757 -->\n<div id=\"calculator\">\n    <style>\n        \/* \u4ec5\u4f5c\u7528\u4e8e #calculator \u5185\u90e8\uff0c\u65e0\u5168\u5c40\u6837\u5f0f\u6c61\u67d3 *\/\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: 545px;\n            padding: 30px;\n            background-color: var(--bg-color);\n            color: var(--text-color);\n            box-sizing: border-box;\n        }\n        #calculator .calc-title {\n            font-size: 18px;\n            margin: 0 0 24px 0;\n            font-weight: 600;\n        }\n        #calculator .field-wrap {\n            margin-bottom: 18px;\n        }\n        #calculator label {\n            display: block;\n            font-size: 14px;\n            margin-bottom: 6px;\n        }\n        #calculator input {\n            width: 100%;\n            box-sizing: border-box;\n            height: 36px;\n            font-size: 16px;\n            border: 1px solid #ccc;\n            border-radius: 0;\n            padding: 0 10px;\n            transition: 0.2s ease;\n        }\n        #calculator input:focus {\n            border: 2px solid var(--primary-color);\n            outline: none;\n        }\n        #calculator input.error {\n            border: 2px solid var(--error-color);\n        }\n        #calculator .error-msg {\n            display: none;\n            font-size: 12px;\n            color: var(--error-color);\n            margin-top: 4px;\n        }\n        #calculator .btn-group {\n            display: flex;\n            gap: 12px;\n            margin: 24px 0;\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-color: var(--primary-color);\n            color: #fff;\n        }\n        #calculator .calc-btn:hover {\n            background-color: var(--primary-hover);\n        }\n        #calculator .reset-btn {\n            background-color: #999;\n            color: #fff;\n        }\n        #calculator .result-wrap {\n            margin-top: 16px;\n        }\n        #calculator .result-label {\n            font-size: 14px;\n        }\n        #calculator .result-value {\n            font-size: 40px;\n            font-weight: bold;\n            margin-top: 4px;\n            word-break: break-all;\n        }\n        \/* \u79fb\u52a8\u7aef\u9002\u914d max-width:768px *\/\n        @media (max-width: 768px) {\n            #calculator input,\n            #calculator button {\n                height: 0.7rem;\n            }\n            #calculator label,\n            #calculator button,\n            #calculator .result-label {\n                font-size: 0.28rem;\n            }\n            #calculator .btn-group {\n                flex-direction: column;\n            }\n            #calculator button {\n                width: 100%;\n            }\n            #calculator .result-value {\n                font-size: 0.8rem;\n            }\n        }\n    <\/style>\n\n    <div class=\"field-wrap\">\n        <label for=\"calculator-P\">\u96c6\u4e2d\u8377\u91cdP\uff08N\uff09<\/label>\n        <input type=\"number\" id=\"calculator-P\" placeholder=\"\u5165\u529b\u8ca0\u8377\u5024\">\n        <span class=\"error-msg\"><\/span>\n    <\/div>\n    <div class=\"field-wrap\">\n        <label for=\"calculator-L\">\u30b9\u30d1\u30f3\u9577 L (m)<\/label>\n        <input type=\"number\" id=\"calculator-L\" placeholder=\"\u5165\u529b\u30b9\u30d1\u30f3\u9577\">\n        <span class=\"error-msg\"><\/span>\n    <\/div>\n    <div class=\"field-wrap\">\n        <label for=\"calculator-I\">\u6163\u6027\u30e2\u30fc\u30e1\u30f3\u30c8 I (cm\u2074)<\/label>\n        <input type=\"number\" id=\"calculator-I\" placeholder=\"\u5165\u529b\u6163\u6027\u5024\">\n        <span class=\"error-msg\"><\/span>\n    <\/div>\n\n    <div class=\"btn-group\">\n        <button id=\"calculator-calcBtn\" class=\"calc-btn\">\u8a08\u7b97\u3059\u308b<\/button>\n        <button id=\"calculator-resetBtn\" class=\"reset-btn\">\u30ea\u30bb\u30c3\u30c8<\/button>\n    <\/div>\n\n    <div class=\"result-wrap\">\n        <div class=\"result-label\">\u305f\u308f\u307f\uff08\u30e1\u30fc\u30c8\u30eb\uff09<\/div>\n        <div id=\"calculator-result\" class=\"result-value\">&#8212;<\/div>\n    <\/div>\n\n    <script>\n        (function() {\n            const fieldIds = ['P', 'L', 'I'];\n            const inputEls = {};\n            const errorMsgEls = {};\n            const resultEl = document.getElementById('calculator-result');\n            const calcBtn = document.getElementById('calculator-calcBtn');\n            const resetBtn = document.getElementById('calculator-resetBtn');\n            \/\/ \u94a2\u6750\u6807\u51c6\u5f39\u6027\u6a21\u91cf\u56fa\u5b9a\u503c 2.06\u00d710\u00b9\u00b9 Pa\n            const STEEL_E = 2.06e11;\n\n            \/\/ \u521d\u59cb\u5316DOM\u6620\u5c04\n            function initDomRefs() {\n                fieldIds.forEach(key => {\n        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validateInput(inputEl, msgEl, fieldName) {\n                const val = parseFloat(inputEl.value.trim());\n                if(inputEl.value.trim() === '') {\n                    setError(inputEl, msgEl, `${fieldName} field cannot be empty`);\n                    return false;\n                }\n                if(isNaN(val) || val <= 0) {\n                    setError(inputEl, msgEl, `${fieldName} must be positive number`);\n                    return false;\n                }\n                clearError(inputEl, msgEl);\n                return true;\n            }\n\n            \/\/ \u6279\u91cf\u6821\u9a8c\u5168\u90e8\u5b57\u6bb5\n            function validateAllFields() {\n                let isValid = true;\n                const fieldNames = {\n                    P: 'Load P',\n                    L: 'Span L',\n                    I: 'Inertia I'\n                };\n                fieldIds.forEach(key => {\n                    const pass = validateInput(inputEls[key], 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