{"id":11542,"date":"2026-06-02T09:25:58","date_gmt":"2026-06-02T09:25:58","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11542"},"modified":"2026-06-02T09:26:03","modified_gmt":"2026-06-02T09:26:03","slug":"overhead-crane-structural-failures-girder-cracks-deformation-inspection-guide","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/ja\/posts\/overhead-crane-structural-failures-girder-cracks-deformation-inspection-guide\/","title":{"rendered":"\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u69cb\u9020\u7684\u6b20\u9665\uff1a\u6841\u306e\u3072\u3073\u5272\u308c\u3001\u5909\u5f62\u3001\u304a\u3088\u3073\u691c\u67fb\u30ac\u30a4\u30c9"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\u76ee\u6b21<\/p><nav><ul><li><a href=\"#part-1-five-structural-failure-modes\">\u30d1\u30fc\u30c81\uff1a5\u3064\u306e\u69cb\u9020\u7834\u58ca\u30e2\u30fc\u30c9<\/a><ul><li><a href=\"#1-main-girder-web-or-cover-plate-fatigue-cracks\">1. \u4e3b\u6841\u30a6\u30a7\u30d6\u307e\u305f\u306f\u30ab\u30d0\u30fc\u30d7\u30ec\u30fc\u30c8\u306e\u75b2\u52b4\u4e80\u88c2<\/a><\/li><li><a href=\"#2-splice-weld-or-truss-node-weld-cracking\">2. \u30b9\u30d7\u30e9\u30a4\u30b9\u6eb6\u63a5\u90e8\u307e\u305f\u306f\u30c8\u30e9\u30b9\u7bc0\u70b9\u6eb6\u63a5\u90e8\u306e\u5272\u308c<\/a><\/li><li><a href=\"#3-main-girder-web-buckling-wave-deformation\">3\uff0e\u4e3b\u6841\u30a6\u30a7\u30d6\u306e\u5ea7\u5c48\uff08\u6ce2\u72b6\u5909\u5f62\uff09<\/a><\/li><li><a href=\"#4-main-girder-sideways-bending-horizontal-sweep-bow\">4. \u4e3b\u6841\u306e\u6a2a\u65b9\u5411\u306e\u66f2\u304c\u308a\uff08\u6c34\u5e73\u65b9\u5411\u306e\u6e7e\u66f2\uff0f\u5f13\u5f62\u5909\u5f62\uff09<\/a><\/li><li><a href=\"#5-main-girder-downward-deflection-sinking-permanent-set\">5\uff0e\u4e3b\u6841\u306e\u4e0b\u65b9\u305f\u308f\u307f\uff08\u6c88\u4e0b\uff0f\u6c38\u4e45\u5909\u5f62\uff09<\/a><\/li><\/ul><\/li><li><a href=\"#part-2-ndt-inspection-methods-for-steel-structures\">\u30d1\u30fc\u30c82\uff1a\u92fc\u69cb\u9020\u7269\u306e\u975e\u7834\u58ca\u691c\u67fb\u65b9\u6cd5<\/a><\/li><li><a href=\"#part-3-pre-shift-structural-inspection-checklist\">\u30d1\u30fc\u30c83\uff1a\u59cb\u696d\u524d\u69cb\u9020\u70b9\u691c\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/a><\/li><li><a href=\"#quick-reference-structural-repair-decision-matrix\">\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\uff1a\u69cb\u9020\u88dc\u4fee\u6c7a\u5b9a\u30de\u30c8\u30ea\u30c3\u30af\u30b9<\/a><\/li><li><a href=\"#how-to-prevent-overhead-crane-structural-failures\">\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u69cb\u9020\u7684\u6545\u969c\u3092\u9632\u3050\u65b9\u6cd5<\/a><ul><li><a href=\"#avoid-overloading\">\u904e\u8ca0\u8377\u3092\u907f\u3051\u308b<\/a><\/li><li><a href=\"#conduct-scheduled-structural-inspections\">\u5b9a\u671f\u7684\u306a\u69cb\u9020\u691c\u67fb\u3092\u5b9f\u65bd\u3059\u308b<\/a><\/li><li><a href=\"#maintain-proper-rail-alignment\">\u30ec\u30fc\u30eb\u306e\u9069\u5207\u306a\u4f4d\u7f6e\u5408\u308f\u305b\u3092\u7dad\u6301\u3059\u308b<\/a><\/li><li><a href=\"#monitor-thermal-effects\">\u71b1\u5f71\u97ff\u3092\u76e3\u8996\u3059\u308b<\/a><\/li><li><a href=\"#repair-minor-defects-early\">\u8efd\u5fae\u306a\u6b20\u9665\u306f\u65e9\u671f\u306b\u4fee\u7406\u3059\u308b<\/a><\/li><\/ul><\/li><li><a href=\"#need-expert-support\">\u5c02\u9580\u5bb6\u306e\u30b5\u30dd\u30fc\u30c8\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>\u30d6\u30ec\u30fc\u30ad\u306e\u6545\u969c\u306f\u4ea4\u63db\u3067\u304d\u308b\u3002\u30ae\u30a2\u30dc\u30c3\u30af\u30b9\u306e\u640d\u50b7\u306f\u4fee\u7406\u3067\u304d\u308b\u3002\u3057\u304b\u3057\u3001\u92fc\u9244\u88fd\u306e\u69cb\u9020\u81ea\u4f53\u306b\u4e80\u88c2\u304c\u5165\u3063\u305f\u308a\u3001\u5909\u5f62\u3057\u305f\u308a\u3001\u6c38\u4e45\u7684\u306b\u5782\u308c\u4e0b\u304c\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u305d\u306e\u5f71\u97ff\u306f\u306f\u308b\u304b\u306b\u6df1\u523b\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u69cb\u9020\u7684\u640d\u50b7\u306f\u3001\u7523\u696d\u7528\u6607\u964d\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u6700\u3082\u5371\u967a\u304b\u3064\u8cbb\u7528\u306e\u304b\u304b\u308b\u554f\u984c\u306e\u4e00\u3064\u3067\u3059\u3002\u69cb\u9020\u7684\u306a\u640d\u50b7\u306f\u3001\u8010\u8377\u91cd\u80fd\u529b\u306e\u4f4e\u4e0b\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u4e0d\u826f\u3001\u75b2\u52b4\u306e\u52a0\u901f\u3001\u305d\u3057\u3066\u6df1\u523b\u306a\u5834\u5408\u306b\u306f\u30af\u30ec\u30fc\u30f3\u306e\u58ca\u6ec5\u7684\u306a\u6545\u969c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u69cb\u9020\u7684\u640d\u50b7\u3067\u6700\u3082\u4e00\u822c\u7684\u306a\u5f62\u614b\u3068\u3057\u3066\u306f\u3001\u6841\u306e\u75b2\u52b4\u4e80\u88c2\u3001\u7d99\u624b\u6eb6\u63a5\u90e8\u306e\u4e80\u88c2\u3001\u30a6\u30a7\u30d6\u306e\u5ea7\u5c48\u3001\u6c34\u5e73\u65b9\u5411\u306e\u5909\u5f62\u3001\u304a\u3088\u3073\u6c38\u4e45\u7684\u306a\u4e0b\u65b9\u305f\u308f\u307f\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u306f\u3001\u904e\u8ca0\u8377\u904b\u8ee2\u3001\u6eb6\u63a5\u54c1\u8cea\u306e\u4e0d\u826f\u3001\u75b2\u52b4\u306e\u84c4\u7a4d\u3001\u71b1\u3078\u306e\u66dd\u9732\u3001\u307e\u305f\u306f\u4e0d\u9069\u5207\u306a\u8f38\u9001\u304a\u3088\u3073\u4fdd\u7ba1\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u3082\u306e\u3092\u8b58\u5225\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002 <a href=\"https:\/\/www.kscranegroup.com\/ja\/overhead-cranes\/\">\u5929\u4e95\u30af\u30ec\u30fc\u30f3<\/a> \u69cb\u9020\u4e0a\u306e\u4e0d\u5177\u5408\u3092\u7279\u5b9a\u3057\u3001\u305d\u306e\u6839\u672c\u539f\u56e0\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u4fee\u7406\u65b9\u6cd5\u3092\u9069\u7528\u3057\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u691c\u67fb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u78ba\u7acb\u3057\u3066\u30af\u30ec\u30fc\u30f3\u306e\u8010\u7528\u5e74\u6570\u3092\u5ef6\u3070\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"part-1-five-structural-failure-modes\">\u30d1\u30fc\u30c81\uff1a5\u3064\u306e\u69cb\u9020\u7834\u58ca\u30e2\u30fc\u30c9<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Structural-Failures.jpg\" alt=\"\" class=\"wp-image-11543\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-main-girder-web-or-cover-plate-fatigue-cracks\">1. \u4e3b\u6841\u30a6\u30a7\u30d6\u307e\u305f\u306f\u30ab\u30d0\u30fc\u30d7\u30ec\u30fc\u30c8\u306e\u75b2\u52b4\u4e80\u88c2<\/h3>\n\n\n\n<p><strong>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u5185\u5bb9\uff1a<\/strong> \u30dc\u30c3\u30af\u30b9\u30ac\u30fc\u30c0\u30fc\u306e\u30a6\u30a7\u30d6\u30d7\u30ec\u30fc\u30c8\u307e\u305f\u306f\u5e95\u677f\uff0f\u4e0a\u677f\u30ab\u30d0\u30fc\u30d7\u30ec\u30fc\u30c8\u306b\u767a\u751f\u3059\u308b\u5fae\u7d30\u306a\u4e80\u88c2\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u6eb6\u63a5\u90e8\u306e\u3064\u307e\u5148\u3001\u88dc\u5f37\u6750\u306e\u7aef\u90e8\u3001\u307e\u305f\u306f\u5e7e\u4f55\u5b66\u7684\u5fdc\u529b\u96c6\u4e2d\u7b87\u6240\u304b\u3089\u767a\u751f\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u539f\u56e0<\/th><th>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u8a73\u7d30<\/th><\/tr><\/thead><tbody><tr><td>\u9577\u671f\u904e\u8ca0\u8377\u904b\u8ee2<\/td><td>\u5fdc\u529b\u7bc4\u56f2\u304c\u6eb6\u63a5\u90e8\u306e\u75b2\u52b4\u9650\u5ea6\u3092\u8d85\u3048\u3066\u3044\u308b<\/td><\/tr><tr><td>\u8a2d\u8a08\u75b2\u52b4\u5bff\u547d\u3092\u8d85\u904e<\/td><td>CMAA \/ FEM \u30b5\u30fc\u30d3\u30b9 \u30af\u30e9\u30b9\u306e\u5b9f\u969b\u306e\u4f7f\u7528\u30b5\u30a4\u30af\u30eb\u3068\u306e\u4e0d\u4e00\u81f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u662f\u6b63\u63aa\u7f6e\uff1a<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u4e80\u88c2\u306e\u6df1\u523b\u5ea6<\/th><th>\u624b\u9806<\/th><\/tr><\/thead><tbody><tr><td>\u2264 0.1 mm\uff08\u8868\u5c64\uff09<\/td><td>\u7814\u78e8\u30db\u30a4\u30fc\u30eb\u3067\u6ed1\u3089\u304b\u306b\u7814\u78e8\u3057\u3001\u6d78\u900f\u63a2\u50b7\u8a66\u9a13\uff08PT\uff09\u3067\u5b8c\u5168\u306b\u9664\u53bb\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/td><\/tr><tr><td>&gt; 0.1 mm<\/td><td>Drill \u2265 \u03c68 mm stop holes at both crack tips; gouge to 60\u00b0 included-angle groove along the crack path; weld-fill with qualified procedure (low-hydrogen electrode); grind flush<\/td><\/tr><tr><td>\u91cd\u8981\u306a\u8377\u91cd\u652f\u6301\u90e8\u306b\u304a\u3044\u3066<\/td><td>\u6eb6\u63a5\u88dc\u4fee\u5f8c\u3001\u5143\u306e\u5f37\u5ea6\u3092\u56de\u5fa9\u3059\u308b\u305f\u3081\u306b\u88dc\u5f37\u677f\uff08\u6280\u8853\u8a55\u4fa1\u306b\u57fa\u3065\u304d\u5b8c\u5168\u6eb6\u3051\u8fbc\u307f\u6eb6\u63a5\u307e\u305f\u306f\u3059\u307f\u8089\u6eb6\u63a5\uff09\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u4e3b\u8981\u90e8\u6750\u306e\u6eb6\u63a5\u4fee\u7406\u5f8c\uff1a<\/strong> \u904b\u8ee2\u518d\u958b\u524d\u306b\u3001\u975e\u7834\u58ca\u691c\u67fb\uff08\u8d85\u97f3\u6ce2\u63a2\u50b7\u8a66\u9a13\u307e\u305f\u306f\u78c1\u7c89\u63a2\u50b7\u8a66\u9a13\uff09\u304a\u3088\u3073\u5b9a\u683c\u5bb9\u91cf125%\u3067\u306e\u8010\u8377\u91cd\u8a66\u9a13\u3092\u5b9f\u65bd\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-splice-weld-or-truss-node-weld-cracking\">2. \u30b9\u30d7\u30e9\u30a4\u30b9\u6eb6\u63a5\u90e8\u307e\u305f\u306f\u30c8\u30e9\u30b9\u7bc0\u70b9\u6eb6\u63a5\u90e8\u306e\u5272\u308c<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"678\" height=\"554\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2Splice-Weld-or-Truss-Node-Weld-Cracking.png\" alt=\"\" class=\"wp-image-11544\"\/><\/figure>\n\n\n\n<p><strong>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u5185\u5bb9\uff1a<\/strong> \u6841\u306e\u7d99\u624b\u90e8\u3001\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3068\u30a6\u30a7\u30d6\u306e\u63a5\u5408\u90e8\u3001\u307e\u305f\u306f\u30c8\u30e9\u30b9\u7bc0\u70b9\u306e\u30ac\u30bb\u30c3\u30c8\u30d7\u30ec\u30fc\u30c8\u306b\u304a\u3051\u308b\u6eb6\u63a5\u90e8\u306e\u4e80\u88c2\u307e\u305f\u306f\u5265\u96e2\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u539f\u56e0<\/th><th>\u662f\u6b63\u63aa\u7f6e<\/th><\/tr><\/thead><tbody><tr><td>\u6eb6\u63a5\u90e8\u306e\u6b20\u9665\uff08\u6c17\u5b54\u3001\u30b9\u30e9\u30b0\u6df7\u5165\u3001\u6eb6\u878d\u4e0d\u826f\uff09<\/td><td>\u4e0d\u826f\u6eb6\u63a5\u90e8\u3092\u524a\u308a\u53d6\u308a\u3001\u8a8d\u5b9a\u3055\u308c\u305f\u4f4e\u6c34\u7d20\u96fb\u6975\u3067\u518d\u6eb6\u63a5\u3059\u308b\u3002<\/td><\/tr><tr><td>\u9577\u671f\u7684\u306a\u904e\u8ca0\u8377<\/td><td><strong>\u904e\u8ca0\u8377\u904b\u8ee2\u3092\u76f4\u3061\u306b\u505c\u6b62\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong> \u904e\u8ca0\u8377\u304c\u7d9a\u304f\u3068\u3001\u4fee\u7406\u3057\u3066\u3082\u6301\u3061\u3053\u305f\u3048\u3089\u308c\u306a\u3044\u3002<\/td><\/tr><tr><td>\u4e0d\u9069\u5207\u306a\u521d\u671f\u624b\u9806\u306b\u3088\u308b\u904e\u5270\u306a\u6eb6\u63a5\u6b8b\u7559\u5fdc\u529b<\/td><td>\u6b6a\u307f\u3084\u6b8b\u7559\u5fdc\u529b\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306b\u3001\u9069\u5207\u306a\u624b\u9806\uff08\u30d0\u30c3\u30af\u30b9\u30c6\u30c3\u30d7\u6eb6\u63a5\u3001\u30b9\u30ad\u30c3\u30d7\u6eb6\u63a5\uff09\u3067\u518d\u6eb6\u63a5\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u57fa\u672c\u539f\u5247\uff1a<\/strong> \u904e\u8ca0\u8377\u306b\u3088\u3063\u3066\u4e80\u88c2\u304c\u62e1\u5927\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u6eb6\u63a5\u88dc\u4fee\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u307e\u305a\u306f\u6839\u672c\u539f\u56e0\uff08\u8ca0\u8377\u3001\u4f4d\u7f6e\u305a\u308c\u3001\u30ec\u30fc\u30eb\u306e\u72b6\u614b\u306a\u3069\uff09\u3092\u89e3\u6c7a\u3057\u3066\u304b\u3089\u3001\u92fc\u6750\u3092\u88dc\u4fee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-main-girder-web-buckling-wave-deformation\">3\uff0e\u4e3b\u6841\u30a6\u30a7\u30d6\u306e\u5ea7\u5c48\uff08\u6ce2\u72b6\u5909\u5f62\uff09<\/h3>\n\n\n\n<p><strong>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u5185\u5bb9\uff1a<\/strong> \u6841\u30a6\u30a7\u30d6\u30d7\u30ec\u30fc\u30c8\u306b\u76ee\u306b\u898b\u3048\u308b\u6ce2\u72b6\u307e\u305f\u306f\u3055\u3056\u6ce2\u72b6\u306e\u5909\u5f62\u304c\u751f\u3058\u308b\u3002\u3053\u308c\u306f\u901a\u5e38\u3001\u4e0a\u90e8\u30d5\u30e9\u30f3\u30b8\u4ed8\u8fd1\u306e\u5727\u7e2e\u9818\u57df\u3001\u307e\u305f\u306f\u652f\u6301\u90e8\u4ed8\u8fd1\u306e\u9ad8\u305b\u3093\u65ad\u30d1\u30cd\u30eb\u9818\u57df\u306b\u767a\u751f\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u539f\u56e0<\/th><th>\u662f\u6b63\u63aa\u7f6e<\/th><\/tr><\/thead><tbody><tr><td>\u6eb6\u63a5\u306b\u3088\u308b\u88fd\u9020\u904e\u7a0b\u3067\u751f\u3058\u308b\u6b8b\u7559\u5727\u7e2e\u5fdc\u529b<\/td><td><strong>\u708e\u306e\u6574\u5217\uff08\u30e9\u30a4\u30f3\u52a0\u71b1\uff09\uff1a<\/strong> \u5f35\u529b\u9818\u57df\u306b\u5236\u5fa1\u3055\u308c\u305f\u71b1\u7dda\u3092\u52a0\u3048\u3066\u30a6\u30a7\u30d6\u3092\u53ce\u7e2e\u3055\u305b\u3001\u5e73\u3089\u306b\u5f15\u304d\u4f38\u3070\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u6a5f\u68b0\u7684\u306a\u30d4\u30fc\u30cb\u30f3\u30b0\u51e6\u7406\u3092\u884c\u3044\u3001\u6b8b\u7559\u5fdc\u529b\u3092\u7de9\u548c\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td>\u904e\u8ca0\u8377\u306b\u3088\u308a\u30a6\u30a7\u30d6\u30d1\u30cd\u30eb\u306e\u5c40\u6240\u7684\u306a\u4e0d\u5b89\u5b9a\u6027\uff08\u305b\u3093\u65ad\u5ea7\u5c48\uff09\u304c\u767a\u751f\u3059\u308b<\/td><td><strong>\u904e\u8ca0\u8377\u72b6\u614b\u3092\u76f4\u3061\u306b\u89e3\u6d88\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong> \u708e\u306b\u3088\u308b\u640d\u50b7\u88dc\u6b63\u5f8c\u3001\u30a6\u30a7\u30d6\u30d1\u30cd\u30eb\u306e\u7e26\u6a2a\u6bd4\u3092\u4f4e\u6e1b\u3057\u3001\u5ea7\u5c48\u62b5\u6297\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u3001\u4e2d\u9593\u88dc\u5f37\u6750\u306e\u8ffd\u52a0\u3092\u691c\u8a0e\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u706b\u708e\u77ef\u6b63\u30d1\u30e9\u30e1\u30fc\u30bf\uff08\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff09\uff1a<\/strong><\/p>\n\n\n\n<ul>\n<li>\u6e29\u5ea6\uff1a600\uff5e650\u2103\uff08\u6697\u3044\u5834\u6240\u3067\u306f\u920d\u3044\u8d64\u8272\u304c\u898b\u3048\u308b\uff09<\/li>\n\n\n\n<li>\u52a0\u71b1\u30d1\u30bf\u30fc\u30f3\uff1a\u4e09\u89d2\u5f62\u307e\u305f\u306f\u76f4\u7dda\u72b6\u3067\u3001\u6ce2\u306e\u5c71\u306b\u5782\u76f4\u3002<\/li>\n\n\n\n<li>\u51b7\u5374\u65b9\u6cd5\uff1a\u9759\u6b62\u7a7a\u6c17\uff08\u6c34\u51b7\u306f\u7d76\u5bfe\u306b\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u30de\u30eb\u30c6\u30f3\u30b5\u30a4\u30c8\u306e\u751f\u6210\u3084\u4e80\u88c2\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-main-girder-sideways-bending-horizontal-sweep-bow\">4. \u4e3b\u6841\u306e\u6a2a\u65b9\u5411\u306e\u66f2\u304c\u308a\uff08\u6c34\u5e73\u65b9\u5411\u306e\u6e7e\u66f2\uff0f\u5f13\u5f62\u5909\u5f62\uff09<\/h3>\n\n\n\n<p><strong>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u5185\u5bb9\uff1a<\/strong> \u4e0a\u304b\u3089\u898b\u305f\u3068\u304d\u306b\u3001\u6841\u304c\u7247\u5074\u306b\u6e7e\u66f2\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u306f\u3001\u6841\u306e\u4e21\u7aef\u3092\u7d50\u3076\u76f4\u7dda\u304b\u3089\u306e\u6c34\u5e73\u65b9\u5411\u306e\u305a\u308c\u3068\u3057\u3066\u6e2c\u5b9a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u539f\u56e0<\/th><th>\u662f\u6b63\u63aa\u7f6e<\/th><\/tr><\/thead><tbody><tr><td>\u88fd\u9020\u6642\u306e\u975e\u5bfe\u79f0\u6eb6\u63a5 \u2015 \u6b8b\u7559\u5fdc\u529b\u3068\u4f7f\u7528\u5fdc\u529b\u306e\u7d44\u307f\u5408\u308f\u305b<\/td><td><strong>\u708e\u306e\u77ef\u6b63\uff1a<\/strong> \u6841\u306e\u51f8\u9762\uff08\u5916\u5074\u306b\u81a8\u3089\u3093\u3067\u3044\u308b\u5074\uff09\u306b\u71b1\u3092\u52a0\u3048\u307e\u3059\u3002\u4fee\u6b63\u4f5c\u696d\u306b\u306f\u3001\u6a5f\u68b0\u5f0f\u30b8\u30e3\u30c3\u30ad\u307e\u305f\u306f\u30ab\u30e0\u30a2\u30ed\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td>\u4e0d\u9069\u5207\u306a\u8f38\u9001\u307e\u305f\u306f\u4fdd\u7ba1\uff08\u8aa4\u3063\u305f\u7b87\u6240\u3067\u652f\u3048\u3089\u308c\u3066\u3044\u308b\u3001\u4e0d\u5747\u4e00\u306b\u7a4d\u307f\u91cd\u306d\u3089\u308c\u3066\u3044\u308b\uff09<\/td><td>\u66f2\u304c\u308a\u3092\u77ef\u6b63\u3057\u3001\u9069\u5207\u306a\u53d6\u308a\u6271\u3044\u624b\u9806\u3092\u78ba\u8a8d\u3057\u3066\u5fb9\u5e95\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u53d7\u5165\u57fa\u6e96\uff1a<\/strong> CMAA 70\u306b\u3088\u308b\u3068\u3001\u65b0\u578b\u30af\u30ec\u30fc\u30f3\u306e\u6c34\u5e73\u30ad\u30e3\u30f3\u30d0\u30fc\u504f\u5dee\u306fL\/2000\uff08L\u306f\u30b9\u30d1\u30f3\uff08mm\uff09\uff09\u3092\u8d85\u3048\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u7a3c\u50cd\u4e2d\u306e\u30af\u30ec\u30fc\u30f3\u306b\u3064\u3044\u3066\u306f\u88fd\u9020\u5143\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u3002\u305f\u3060\u3057\u3001\u30ec\u30fc\u30eb\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u3088\u3046\u306a\u76ee\u306b\u898b\u3048\u308b\u30ad\u30e3\u30f3\u30d0\u30fc\u504f\u5dee\u306f\u4fee\u6b63\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-main-girder-downward-deflection-sinking-permanent-set\">5\uff0e\u4e3b\u6841\u306e\u4e0b\u65b9\u305f\u308f\u307f\uff08\u6c88\u4e0b\uff0f\u6c38\u4e45\u5909\u5f62\uff09<\/h3>\n\n\n\n<p><strong>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u5185\u5bb9\uff1a<\/strong> \u6841\u306e\u4e0a\u5411\u304d\u306e\u6e7e\u66f2\u306f\u306a\u304f\u306a\u308a\u3001\u5e73\u5766\u307e\u305f\u306f\u4e0b\u5411\u304d\u306b\u5782\u308c\u4e0b\u304c\u3063\u305f\u5f62\u72b6\u306b\u5909\u308f\u3063\u305f\u3002\u7a4d\u8f09\u3055\u308c\u305f\u30c8\u30ed\u30ea\u30fc\u306f\u3082\u306f\u3084\u300c\u4e2d\u592e\u3078\u6d41\u308c\u308b\u300d\u3053\u3068\u306f\u306a\u304f\u3001\u4e21\u7aef\u3078\u6d41\u308c\u308b\u304b\u3001\u305d\u306e\u5834\u306b\u3068\u3069\u307e\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u539f\u56e0<\/th><th>\u662f\u6b63\u63aa\u7f6e<\/th><\/tr><\/thead><tbody><tr><td>\u6162\u6027\u7684\u306a\u904e\u8ca0\u8377\u306b\u3088\u308b\u69cb\u9020\u7684\u5909\u5f62<\/td><td><strong>\u708e\u306e\u77ef\u6b63<\/strong> \u5e95\u90e8\u30ab\u30d0\u30fc\u30d7\u30ec\u30fc\u30c8\u306b\u6cbf\u3063\u3066\u3001\u3055\u3089\u306b <strong>\u30c1\u30e3\u30f3\u30cd\u30eb\u65ad\u9762\u306b\u3088\u308b\u88dc\u5f37<\/strong> \u5e95\u30d5\u30e9\u30f3\u30b8\u306b\u30b9\u30c6\u30c3\u30c1\u6eb6\u63a5\u3055\u308c\u3066\u3044\u308b<\/td><\/tr><tr><td>\u30a6\u30a7\u30d6\u5ea7\u5c48\u306b\u3088\u308a\u6841\u65ad\u9762\u306e\u6709\u52b9\u6027\u304c\u4f4e\u4e0b\u3059\u308b<\/td><td>\u4f7f\u7528 <strong>\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u5de5\u6cd5\uff1a<\/strong> \u6841\u306e\u4e0b\u306b\u30c6\u30f3\u30b7\u30e7\u30f3\u30ed\u30c3\u30c9\u3092\u53d6\u308a\u4ed8\u3051\u3001\u4e0a\u5411\u304d\u306e\u30ad\u30e3\u30f3\u30d0\u30fc\u3092\u56de\u5fa9\u3055\u305b\u308b\u305f\u3081\u306b\u30dd\u30b9\u30c8\u30c6\u30f3\u30b7\u30e7\u30f3\u3092\u304b\u3051\u3001\u305d\u306e\u5f8c\u56fa\u5b9a\u3057\u307e\u3059\u3002\u6052\u4e45\u7684\u306a\u88dc\u5f37\u306b\u306f\u3001\u9023\u7d9a\u88dc\u5f37\u30c1\u30e3\u30f3\u30cd\u30eb\u3092\u6eb6\u63a5\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td>\u71b1\u52b9\u679c\uff08\u53d6\u934b\u30af\u30ec\u30fc\u30f3\u304b\u3089\u306e\u653e\u5c04\u71b1\u3001\u92f3\u9020\u5de5\u5834\u3067\u306e\u7528\u9014\uff09<\/td><td>\u906e\u71b1\u677f\u3092\u8ffd\u52a0\u3059\u308b\u3002\u53d6\u934b\u30af\u30ec\u30fc\u30f3\u306b\u3064\u3044\u3066\u306f\u3001\u5143\u306e\u8a2d\u8a08\u304c\u71b1\u4f7f\u7528\u30af\u30e9\u30b9\u3092\u8003\u616e\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/td><\/tr><tr><td>\u4e0d\u9069\u5207\u306a\u4fdd\u7ba1\u307e\u305f\u306f\u8f38\u9001<\/td><td>\u30af\u30ec\u30fc\u30f3\u30e1\u30fc\u30ab\u30fc\u306e\u540a\u308a\u4e0a\u3052\u304a\u3088\u3073\u652f\u6301\u56f3\u306b\u5f93\u3063\u3066\u3001\u30ad\u30e3\u30f3\u30d0\u30fc\u3092\u4fee\u6b63\u3057\u3066\u304b\u3089\u4fdd\u7ba1\/\u51fa\u8377\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u91cd\u5927\u306a\u8b66\u544a\uff1a<\/strong> \u6c38\u4e45\u7684\u306b\u305f\u308f\u3093\u3060\u6841\u306f\u65e2\u306b\u964d\u4f0f\u3057\u3066\u304a\u308a\u3001\u92fc\u6750\u306f\u5f3e\u6027\u9650\u754c\u3092\u8d85\u3048\u3066\u5fdc\u529b\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002\u706b\u708e\u77ef\u6b63\u3060\u3051\u3067\u306f\u3001\u5b8c\u5168\u306a\u75b2\u52b4\u5bff\u547d\u3092\u56de\u5fa9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4fee\u7406\u5f8c\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u8a55\u4fa1\uff08\u4fee\u7406\u7b87\u6240\u306e\u6709\u9650\u8981\u7d20\u89e3\u6790\u306b\u3088\u308b\u518d\u8a55\u4fa1\u3092\u542b\u3080\uff09\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"part-2-ndt-inspection-methods-for-steel-structures\">\u30d1\u30fc\u30c82\uff1a\u92fc\u69cb\u9020\u7269\u306e\u975e\u7834\u58ca\u691c\u67fb\u65b9\u6cd5<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1633\" height=\"828\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/3NDT-Inspection-Methods-for-Steel-Structures.png\" alt=\"\" class=\"wp-image-11545\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/3NDT-Inspection-Methods-for-Steel-Structures.png 1633w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/3NDT-Inspection-Methods-for-Steel-Structures-1536x779.png 1536w\" sizes=\"(max-width: 1633px) 100vw, 1633px\" \/><\/figure>\n\n\n\n<p>\u3059\u3079\u3066\u306e\u4e80\u88c2\u304c\u8089\u773c\u3067\u898b\u3048\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u5b9a\u671f\u7684\u306b\u4ee5\u4e0b\u306e\u975e\u7834\u58ca\u691c\u67fb\u65b9\u6cd5\u3092\u5b9f\u65bd\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u65b9\u6cd5<\/th><th>\u6700\u9069\u306a\u7528\u9014<\/th><th>\u983b\u5ea6<\/th><th>\u6ce8\u610f\u4e8b\u9805<\/th><\/tr><\/thead><tbody><tr><td><strong>\u8996\u899a\u691c\u67fb\uff08VT\uff09<\/strong><\/td><td>\u8868\u9762\u306e\u3072\u3073\u5272\u308c\u3001\u8150\u98df\u3001\u5909\u5f62\u3001\u30dc\u30eb\u30c8\u306e\u7de9\u307f<\/td><td>\u3059\u3079\u3066\u306e\u30b7\u30d5\u30c8<\/td><td>\u6700\u3082\u91cd\u8981\u3067\u3042\u308a\u306a\u304c\u3089\u6700\u3082\u904e\u5c0f\u8a55\u4fa1\u3055\u308c\u3066\u3044\u308b<\/td><\/tr><tr><td><strong>\u78c1\u6027\u7c92\u5b50\uff08MT\uff09<\/strong><\/td><td>\u5f37\u78c1\u6027\u92fc\u306e\u8868\u9762\u304a\u3088\u3073\u8868\u9762\u8fd1\u508d\u306e\u4e80\u88c2<\/td><td>\u5e74\u306b\u4e00\u5ea6\u3001\u307e\u305f\u306f\u904e\u8ca0\u8377\u4e8b\u8c61\u767a\u751f\u5f8c\u306b<\/td><td>\u9ad8\u901f\u3067\u6301\u3061\u904b\u3073\u53ef\u80fd\u3001\u8868\u9762\u51e6\u7406\u306f\u6d17\u6d44\u306e\u307f\u3067\u6e08\u307f\u307e\u3059<\/td><\/tr><tr><td><strong>\u6d78\u900f\u63a2\u50b7\u8a66\u9a13\uff08PT\uff09<\/strong><\/td><td>\u8868\u9762\u306e\u4e80\u88c2\u3092\u8cab\u901a\u3059\u308b \u2013 \u3042\u3089\u3086\u308b\u7d20\u6750\u306b\u4f7f\u7528\u53ef\u80fd<\/td><td>\u5e74\u306b\u4e00\u5ea6\u3001\u307e\u305f\u306f\u6eb6\u63a5\u4fee\u7406\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b<\/td><td>\u30b7\u30f3\u30d7\u30eb\u3060\u304c\u3001\u8868\u9762\u3092\u6e05\u6f54\u306b\u4fdd\u3061\u3001\u4e00\u5b9a\u6642\u9593\u653e\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/td><\/tr><tr><td><strong>\u8d85\u97f3\u6ce2\u63a2\u50b7\u8a66\u9a13\uff08UT\uff09<\/strong><\/td><td>\u539a\u8089\u90e8\u306e\u5185\u90e8\u6b20\u9665\u3001\u4e80\u88c2\u6df1\u3055\u6e2c\u5b9a<\/td><td>3\uff5e5\u5e74\u3054\u3068\u3001\u307e\u305f\u306fOEM\u306e\u898f\u5b9a\u306b\u5f93\u3063\u3066<\/td><td>\u8a13\u7df4\u3092\u53d7\u3051\u305f\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3068\u6821\u6b63\u30d6\u30ed\u30c3\u30af\u304c\u5fc5\u8981\u3067\u3059<\/td><\/tr><tr><td><strong>\u30ec\u30fc\u30b6\u30fc\u6e2c\u91cf\uff0f\u30c8\u30fc\u30bf\u30eb\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u6e2c\u91cf<\/strong><\/td><td>\u6841\u306e\u30ad\u30e3\u30f3\u30d0\u30fc\u3001\u30b9\u30a4\u30fc\u30d7\u3001\u304a\u3088\u3073\u5168\u4f53\u7684\u306a\u5f62\u72b6<\/td><td>\u6bce\u5e74<\/td><td>\u8a66\u904b\u8ee2\u6642\u306e\u57fa\u6e96\u5024\u3068\u6bd4\u8f03\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"part-3-pre-shift-structural-inspection-checklist\">\u30d1\u30fc\u30c83\uff1a\u59cb\u696d\u524d\u69cb\u9020\u70b9\u691c\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n\n\n\n<p>5\u5206\u9593\u306e\u76ee\u8996\u70b9\u691c\u3067\u3001\u69cb\u9020\u4e0a\u306e\u554f\u984c\u304c\u6df1\u523b\u5316\u3059\u308b\u524d\u306b\u767a\u898b\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<ul>\n<li><strong>\u4e3b\u6841\uff1a<\/strong> \u5857\u88c5\u306e\u3072\u3073\u5272\u308c\u3084\u9306\u3073\u306e\u67d3\u307f\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306f\u3001\u75b2\u52b4\u4e80\u88c2\u304c\u9032\u884c\u3057\u3066\u3044\u308b\u6700\u521d\u306e\u5146\u5019\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30c9\u30ad\u30e3\u30ea\u30c3\u30b8\/\u30a8\u30f3\u30c9\u30c8\u30e9\u30c3\u30af\uff1a<\/strong> \u30dc\u30eb\u30c8\u306e\u63a5\u7d9a\u90e8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7de9\u3093\u3067\u3044\u308b\u30dc\u30eb\u30c8\u3084\u6b20\u843d\u3057\u3066\u3044\u308b\u30dc\u30eb\u30c8\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/li>\n\n\n\n<li><strong>\u63a5\u5408\u90e8\uff1a<\/strong> \u6881\u306e\u7d99\u304e\u76ee\u6eb6\u63a5\u90e8\u306b\u61d0\u4e2d\u96fb\u706f\u3092\u5f53\u3066\u3066\u3001\u5857\u88c5\u306e\u3072\u3073\u5272\u308c\u3084\u6eb6\u63a5\u90e8\u304b\u3089\u306e\u9306\u306e\u6ef2\u307f\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\uff0f\u88dc\u5f37\u6750\u306e\u7d42\u7aef\u90e8\uff1a<\/strong> \u3053\u308c\u3089\u306f\u5178\u578b\u7684\u306a\u75b2\u52b4\u4e80\u88c2\u767a\u751f\u70b9\u3067\u3059\u3002\u3088\u304f\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u30ec\u30fc\u30eb\u30af\u30ea\u30c3\u30d7\u3068\u30ec\u30fc\u30eb\u30b9\u30d7\u30e9\u30a4\u30b9\uff1a<\/strong> \u30af\u30ea\u30c3\u30d7\u304c\u7de9\u3093\u3067\u3044\u305f\u308a\u7834\u640d\u3057\u3066\u3044\u305f\u308a\u3059\u308b\u3068\u3001\u885d\u6483\u8377\u91cd\u304c\u304b\u304b\u308a\u3001\u69cb\u9020\u75b2\u52b4\u304c\u52a0\u901f\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u6841\u4e0a\u306e\u30c8\u30ed\u30ea\u30fc\u30ec\u30fc\u30eb\uff1a<\/strong> \u30ec\u30fc\u30eb\u306e\u305a\u308c\u3084\u9699\u9593\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306f\u6841\u30a6\u30a7\u30d6\u306b\u504f\u5fc3\u8377\u91cd\u3092\u304b\u3051\u308b\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8150\u98df\uff1a<\/strong> \u7279\u306b\u5c4b\u5916\u307e\u305f\u306f\u6e7f\u6f64\u74b0\u5883\u3067\u4f7f\u7528\u3055\u308c\u308b\u30af\u30ec\u30fc\u30f3\u306e\u5e95\u30d5\u30e9\u30f3\u30b8\u3068\u30a6\u30a7\u30d6\u306e\u63a5\u5408\u90e8\u306b\u304a\u3044\u3066<\/li>\n\n\n\n<li><strong>\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u30dd\u30a4\u30f3\u30c8\uff0f\u30a4\u30b3\u30e9\u30a4\u30b6\u30fc\u30d4\u30f3\uff1a<\/strong> \u5929\u4e95\u8d70\u884c\u30af\u30ec\u30fc\u30f3\u3067\u306f\u3001\u6469\u8017\u3057\u305f\u30d4\u30f3\u304c\u885d\u6483\u8377\u91cd\u3092\u751f\u307f\u51fa\u3057\u3001\u305d\u308c\u304c\u69cb\u9020\u7269\u306b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3055\u308c\u308b\u3002<\/li>\n\n\n\n<li><strong>\u6ed1\u8d70\u8def\u6881\u3068\u652f\u6301\u67f1\uff1a<\/strong> \u30af\u30ec\u30fc\u30f3\u306e\u5f37\u5ea6\u306f\u3001\u305d\u308c\u304c\u53d6\u308a\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u53f0\u5ea7\u306e\u5f37\u5ea6\u306b\u5de6\u53f3\u3055\u308c\u308b\u3002<\/li>\n\n\n\n<li><strong>\u5909\u5f62\u307e\u305f\u306f\u885d\u6483\u306b\u3088\u308b\u640d\u50b7\uff1a<\/strong> \u885d\u7a81\u306b\u3088\u308b\u3078\u3053\u307f\u306f\u5fdc\u529b\u96c6\u4e2d\u3092\u5f15\u304d\u8d77\u3053\u3059<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"quick-reference-structural-repair-decision-matrix\">\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\uff1a\u69cb\u9020\u88dc\u4fee\u6c7a\u5b9a\u30de\u30c8\u30ea\u30c3\u30af\u30b9<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u767a\u898b<\/th><th>\u30a2\u30af\u30b7\u30e7\u30f3<\/th><\/tr><\/thead><tbody><tr><td>\u8868\u9762\u7684\u306a\u5857\u88c5\u306e\u3072\u3073\u5272\u308c\u3001\u9306\u306a\u3057\u3001PT\u691c\u67fb\u3067\u306f\u4e0b\u5730\u91d1\u5c5e\u306e\u3072\u3073\u5272\u308c\u306a\u3057<\/td><td>\u6b21\u56de\u306e\u5b9a\u671f\u70b9\u691c\u6642\u306b\u76e3\u8996\u3059\u308b<\/td><\/tr><tr><td>\u4e8c\u6b21\u90e8\u6750\uff08\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3001\u88dc\u5f37\u6750\uff09\u306b50mm\u672a\u6e80\u306e\u75b2\u52b4\u4e80\u88c2\u3092\u78ba\u8a8d\u3002<\/td><td>\u8a8d\u5b9a\u3055\u308c\u305fWPS\u306b\u5f93\u3063\u3066\u3001\u30c9\u30ea\u30eb\u30b9\u30c8\u30c3\u30d7\u3001\u30ac\u30a6\u30b8\u30f3\u30b0\u3001\u6eb6\u63a5\u88dc\u4fee\u3092\u884c\u3046\u3002<\/td><\/tr><tr><td>50mm\u3092\u8d85\u3048\u308b\u4e80\u88c2\u3001\u307e\u305f\u306f\u4e3b\u8981\u90e8\u6750\uff08\u6841\u30d5\u30e9\u30f3\u30b8\uff0f\u30a6\u30a7\u30d6\u3001\u30a8\u30f3\u30c9\u30ad\u30e3\u30ea\u30c3\u30b8\uff09\u306b\u4e80\u88c2\u304c\u78ba\u8a8d\u3055\u308c\u305f\u3002<\/td><td>\u6280\u8853\u8a55\u4fa1\u304c\u5fc5\u8981\u3002\u88dc\u5f37\u677f\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002\u88dc\u4fee\u5f8c\u306e\u8010\u8377\u91cd\u8a66\u9a13\u306f\u5fc5\u9808\u3002<\/td><\/tr><tr><td>\u76ee\u8996\u53ef\u80fd\u306a\u30a6\u30a7\u30d6\u5ea7\u5c48\uff08500mm\u306e\u30b9\u30d1\u30f3\u306b\u308f\u305f\u3063\u3066\u9762\u5916\u65b9\u5411\u306b3mm\u3092\u8d85\u3048\u308b\u6ce2\u72b6\u5909\u5f62\uff09<\/td><td>\u708e\u3092\u93ae\u3081\u308b\u3002\u6839\u672c\u539f\u56e0\u3092\u8abf\u67fb\u3059\u308b\uff08\u904e\u8ca0\u8377\uff1f\u8a2d\u8a08\u4e0a\u306e\u554f\u984c\uff1f\uff09<\/td><\/tr><tr><td>\u6e2c\u5b9a\u53ef\u80fd\u306a\u6052\u4e45\u7684\u306a\u4e0b\u5411\u304d\u306e\u305f\u308f\u307f\uff08\u7ae3\u5de5\u6642\u306e\u30ad\u30e3\u30f3\u30d0\u30fc\u304b\u3089L\/1000\u4ee5\u4e0a\uff09<\/td><td>\u5927\u898f\u6a21\u306a\u4fee\u7e55\u304c\u5fc5\u8981\u3002\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u307e\u305f\u306f\u88dc\u5f37\u304c\u5fc5\u8981\u3002\u69cb\u9020\u7269\u306e\u518d\u8a55\u4fa1\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002<\/td><\/tr><tr><td>\u540c\u3058\u6841\u9818\u57df\u306b\u8907\u6570\u306e\u4e80\u88c2\u304c\u3042\u308b\u3001\u307e\u305f\u306f\u6eb6\u63a5\u90e8\u3092\u8d85\u3048\u3066\u6bcd\u6750\u306b\u307e\u3067\u4e80\u88c2\u304c\u53ca\u3093\u3067\u3044\u308b<\/td><td><strong>\u6841\u90e8\u5206\u3092\u4ea4\u63db\u3057\u307e\u3059<\/strong> \u2015 \u6563\u5728\u3059\u308b\u75b2\u52b4\u640d\u50b7\u306f\u3001\u90e8\u6750\u306e\u5bff\u547d\u304c\u5c3d\u304d\u305f\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-prevent-overhead-crane-structural-failures\">\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u69cb\u9020\u7684\u6545\u969c\u3092\u9632\u3050\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u69cb\u9020\u7684\u306a\u6545\u969c\u3092\u672a\u7136\u306b\u9632\u3050\u3053\u3068\u306f\u3001\u5927\u898f\u6a21\u306a\u69cb\u9020\u4fee\u7406\u3084\u6841\u306e\u4ea4\u63db\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u8cbb\u7528\u5bfe\u52b9\u679c\u304c\u9ad8\u3044\u3002\u307b\u3068\u3093\u3069\u306e\u69cb\u9020\u4e0a\u306e\u554f\u984c\u306f\u5f90\u3005\u306b\u9032\u884c\u3059\u308b\u305f\u3081\u3001\u9069\u5207\u306a\u64cd\u4f5c\u3001\u70b9\u691c\u3001\u4e88\u9632\u4fdd\u5168\u306b\u3088\u3063\u3066\u5236\u5fa1\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"avoid-overloading\">\u904e\u8ca0\u8377\u3092\u907f\u3051\u308b<\/h3>\n\n\n\n<p>\u7e70\u308a\u8fd4\u3057\u306e\u904e\u8ca0\u8377\u30b5\u30a4\u30af\u30eb\u306f\u3001 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A damaged gearbox can be rebuilt. But when the steel structure itself begins to crack, deform, or permanently sag, the consequences are far more serious. Overhead crane structural failures are among the most dangerous and costly problems in industrial lifting systems. Structural damage can reduce load-bearing capacity, create alignment problems, accelerate fatigue, and in severe cases, lead to catastrophic crane failure. The most common forms of overhead crane structural failures include girder fatigue cracks, splice weld cracking, web buckling, horizontal sweep deformation, and permanent downward deflection. These issues are often caused by overload operation, poor welding quality, fatigue accumulation, thermal exposure, or improper transportation [&hellip;]","protected":false},"featured_media":11543,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[767],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/xmxposts\/11542"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":6,"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/xmxposts\/11542\/revisions"}],"predecessor-version":[{"id":11557,"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/xmxposts\/11542\/revisions\/11557"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/media\/11543"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/media?parent=11542"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/posts_category?post=11542"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/ja\/wp-json\/wp\/v2\/posts_tag?post=11542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}