{"id":15941,"date":"2026-08-17T02:02:59","date_gmt":"2026-08-17T02:02:59","guid":{"rendered":"https:\/\/www.hndfcrane.com\/?post_type=posts&#038;p=15941"},"modified":"2026-08-17T02:03:02","modified_gmt":"2026-08-17T02:03:02","slug":"overhead-crane-girder-web-crack-analysis","status":"publish","type":"posts","link":"https:\/\/www.hndfcrane.com\/fa\/posts\/overhead-crane-girder-web-crack-analysis\/","title":{"rendered":"\u062a\u062d\u0644\u06cc\u0644 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631\u0622\u0647\u0646 \u062c\u0631\u062b\u0642\u06cc\u0644 \u0633\u0642\u0641\u06cc: \u0639\u0644\u0644 \u0648 \u0631\u0627\u0647\u06a9\u0627\u0631\u0647\u0627"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p><nav><ul><li><a href=\"#1-root-causes-of-overhead-crane-girder-web-cracking\">\u06f1. \u0639\u0644\u0644 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href=\"#2-3-ensure-material-quality\">\u06f2.\u06f3 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u06a9\u06cc\u0641\u06cc\u062a \u0645\u0648\u0627\u062f<\/a><\/li><li><a href=\"#2-4-operate-equipment-properly\">\u06f2.\u06f4 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0635\u062d\u06cc\u062d \u0627\u0632 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a<\/a><\/li><li><a href=\"#2-5-perform-regular-maintenance-and-inspection\">\u06f2.\u06f5 \u0627\u0646\u062c\u0627\u0645 \u062a\u0639\u0645\u06cc\u0631\u0627\u062a \u0648 \u0628\u0627\u0632\u0631\u0633\u06cc \u0645\u0646\u0638\u0645<\/a><\/li><\/ul><\/li><li><a href=\"#conclusion\">\u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>\u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631 \u062f\u0631 \u0645\u0642\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631 \u062f\u0631 \u0627\u0646\u062a\u0647\u0627\u06cc \u062a\u06cc\u0631 \u0627\u0635\u0644\u06cc\u060c \u06cc\u06a9 \u0645\u0634\u06a9\u0644 \u0631\u0627\u06cc\u062c \u0648 \u062c\u062f\u06cc \u062f\u0631 \u062c\u0631\u062b\u0642\u06cc\u0644\u200c\u0647\u0627\u06cc \u0633\u0642\u0641\u06cc \u062f\u0631 \u0637\u0648\u0644 \u0645\u062f\u062a \u06a9\u0627\u0631\u06a9\u0631\u062f \u0637\u0648\u0644\u0627\u0646\u06cc \u0627\u0633\u062a. \u062f\u0631\u06a9 \u0639\u0644\u0644 \u062a\u0634\u06a9\u06cc\u0644 \u062a\u0631\u06a9 \u0628\u0631\u0627\u06cc \u067e\u06cc\u0634\u06af\u06cc\u0631\u06cc \u0648 \u0631\u0641\u0639 \u0622\u0646 \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u060c \u062a\u062d\u0644\u06cc\u0644\u06cc \u0627\u0632 \u0639\u0644\u0644 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631 \u062f\u0631 \u0645\u0642\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631 \u062f\u0631 \u0627\u0646\u062a\u0647\u0627\u06cc \u062a\u06cc\u0631 \u0627\u0635\u0644\u06cc \u062c\u0631\u062b\u0642\u06cc\u0644 \u0633\u0642\u0641\u06cc \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2422\" height=\"1614\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Main-girder-end-web-crack.png\" alt=\"\" class=\"wp-image-15933\" srcset=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Main-girder-end-web-crack.png 2422w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Main-girder-end-web-crack-1536x1024.png 1536w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Main-girder-end-web-crack-2048x1365.png 2048w\" sizes=\"(max-width: 2422px) 100vw, 2422px\" \/><figcaption class=\"wp-element-caption\">\u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u0627\u0646\u062a\u0647\u0627\u06cc \u062a\u06cc\u0631 \u0627\u0635\u0644\u06cc: \u062a\u0631\u06a9 \u062f\u0631 \u06af\u0648\u0634\u0647 \u0645\u0642\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u062a\u06cc\u0631 \u0627\u0635\u0644\u06cc \u0648 \u0627\u0631\u0627\u0628\u0647 \u0627\u0646\u062a\u0647\u0627\u06cc\u06cc \u0628\u0647 \u0647\u0645 \u0645\u062a\u0635\u0644 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f\u060c \u0638\u0627\u0647\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-root-causes-of-overhead-crane-girder-web-cracking\">\u06f1. \u0639\u0644\u0644 \u0631\u06cc\u0634\u0647\u200c\u0627\u06cc \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631\u0622\u0647\u0646 \u062c\u0631\u062b\u0642\u06cc\u0644 \u0633\u0642\u0641\u06cc<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-1-stress-concentration\">\u06f1.\u06f1 \u062a\u0645\u0631\u06a9\u0632 \u062a\u0646\u0634<\/h3>\n\n\n\n<p>\u0628\u0631\u0627\u06cc \u0628\u0631\u0622\u0648\u0631\u062f\u0647 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\u062a\u0646\u0634 \u0645\u0639\u0627\u062f\u0644\u060c \u062a\u0646\u0634 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0628\u0627\u0644\u0627\u062a\u0631 \u0627\u0632 \u0633\u0627\u06cc\u0631 \u0646\u0642\u0627\u0637 \u0631\u0627 \u062f\u0631 \u0633\u0637\u062d \u0645\u0642\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1035\" height=\"690\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Equivalent-stress-contour-of-an-overhead-crane.png\" alt=\"\" class=\"wp-image-15938\"\/><\/figure>\n\n\n\n<p>\u0645\u062d\u0635\u0648\u0644 \u0645\u0648\u0631\u062f \u0628\u0631\u0631\u0633\u06cc \u062f\u0631 \u0628\u0627\u0644\u0627 \u062f\u0627\u0631\u0627\u06cc \u06cc\u06a9 \u06af\u0630\u0627\u0631 \u0634\u06cc\u0628\u200c\u062f\u0627\u0631 \u062f\u0631 \u0633\u0637\u062d \u0645\u0642\u0637\u0639 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\u0631\u06cc\u0644\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0627\u0631\u0647\u0627\u06cc \u0636\u0631\u0628\u0647\u200c\u0627\u06cc \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0631\u0627 \u0647\u0646\u06af\u0627\u0645 \u062d\u0631\u06a9\u062a \u062c\u0631\u062b\u0642\u06cc\u0644 \u062f\u0631 \u0627\u0645\u062a\u062f\u0627\u062f \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0631\u06cc\u0644\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u062f. \u0644\u0631\u0632\u0634 \u0648 \u0636\u0631\u0628\u0647 \u0637\u0648\u0644\u0627\u0646\u06cc \u0645\u062f\u062a \u0628\u0627\u0639\u062b \u0622\u0633\u06cc\u0628 \u062e\u0633\u062a\u06af\u06cc \u0634\u062f\u0647 \u0648 \u0627\u0646\u062a\u0634\u0627\u0631 \u0631\u06cc\u0632\u062a\u0631\u06a9\u200c\u0647\u0627 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0627\u062d\u062a\u0645\u0627\u0644 \u0634\u0631\u0648\u0639 \u0648 \u0627\u0646\u062a\u0634\u0627\u0631 \u062a\u0631\u06a9\u200c\u0647\u0627 \u062f\u0631 \u0645\u0642\u0627\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631 \u06a9\u0647 \u062f\u0631 \u0622\u0646\u0647\u0627 \u062a\u0645\u0631\u06a9\u0632 \u062a\u0646\u0634 \u0627\u0632 \u0642\u0628\u0644 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u0628\u06cc\u0634\u062a\u0631 \u0627\u0633\u062a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-solutions-for-overhead-crane-girder-web-cracking\">\u06f2. \u0631\u0627\u0647\u06a9\u0627\u0631\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631\u0622\u0647\u0646 \u062c\u0631\u062b\u0642\u06cc\u0644 \u0633\u0642\u0641\u06cc<\/h2>\n\n\n\n<p>\u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0648 \u06a9\u0627\u0647\u0634 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631 \u062f\u0631 \u0645\u0642\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631 \u0627\u0646\u062a\u0647\u0627\u06cc \u062a\u06cc\u0631 \u0627\u0635\u0644\u06cc \u062c\u0631\u062b\u0642\u06cc\u0644 \u0633\u0642\u0641\u06cc\u060c \u0628\u0627\u06cc\u062f \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u062c\u0627\u0645\u0639 \u0627\u0632 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-1-improve-structural-design\">\u06f2.\u06f1 \u0628\u0647\u0628\u0648\u062f \u0637\u0631\u0627\u062d\u06cc \u0633\u0627\u0632\u0647<\/h3>\n\n\n\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0646\u062a\u0642\u0627\u0644\u200c\u0647\u0627\u06cc \u062a\u062f\u0631\u06cc\u062c\u06cc \u0648 \u0646\u0631\u0645\u060c \u0637\u0631\u0627\u062d\u06cc \u0645\u0642\u0637\u0639 \u0645\u062a\u063a\u06cc\u0631 \u0631\u0627 \u0628\u0647\u06cc\u0646\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u062a\u0645\u0631\u06a9\u0632 \u062a\u0646\u0634 \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0628\u062f. \u0628\u0631\u0627\u06cc \u0631\u0641\u0639 \u0646\u06af\u0631\u0627\u0646\u06cc\u200c\u0647\u0627\u06cc \u062e\u0633\u062a\u06af\u06cc \u0628\u0644\u0646\u062f\u0645\u062f\u062a\u060c \u0637\u0631\u0627\u062d\u06cc \u062e\u0633\u062a\u06af\u06cc \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f. \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u062a\u0642\u0648\u06cc\u062a\u06cc \u0627\u0635\u0644\u0627\u062d\u06cc \u062a\u0648\u0635\u06cc\u0647 \u0634\u062f\u0647 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"720\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Adding-a-gusset-plate-at-the-connection-plate.png\" alt=\"\" class=\"wp-image-15947\"\/><\/figure>\n\n\n\n<p>\u0628\u0631\u0627\u06cc \u0628\u0647\u0628\u0648\u062f \u0633\u062e\u062a\u06cc \u0645\u0648\u0636\u0639\u06cc\u060c \u0635\u0641\u062d\u0627\u062a \u0627\u062a\u0635\u0627\u0644 \u0645\u062b\u0644\u062b\u06cc \u0634\u06a9\u0644 \u0631\u0627 \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u062f\u0631 \u0645\u062d\u0644 \u0627\u062a\u0635\u0627\u0644 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2496\" height=\"1664\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-plate-scheme.png\" alt=\"\" class=\"wp-image-15935\" srcset=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-plate-scheme.png 2496w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-plate-scheme-1536x1024.png 1536w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-plate-scheme-2048x1365.png 2048w\" sizes=\"(max-width: 2496px) 100vw, 2496px\" \/><\/figure>\n\n\n\n<p>\u0631\u0648\u06cc\u06a9\u0631\u062f \u062f\u06cc\u06af\u0631\u060c \u062a\u0642\u0648\u06cc\u062a \u0628\u0627 \u0648\u0635\u0644\u0647 \u06a9\u0631\u062f\u0646 \u0627\u0633\u062a\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2496\" height=\"1664\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-by-patching.png\" alt=\"\" class=\"wp-image-15936\" srcset=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-by-patching.png 2496w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-by-patching-1536x1024.png 1536w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/08\/Reinforcement-by-patching-2048x1365.png 2048w\" sizes=\"(max-width: 2496px) 100vw, 2496px\" \/><\/figure>\n\n\n\n<p>\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0627\u0632 \u0622\u0646\u062c\u0627 \u06a9\u0647 \u0633\u0627\u0632\u0647 \u0627\u0635\u0644\u06cc \u0627\u0632 \u0642\u0628\u0644 \u062f\u0627\u0631\u0627\u06cc \u06cc\u06a9 \u0635\u0641\u062d\u0647 \u062a\u0642\u0648\u06cc\u062a\u06cc \u062f\u0631 \u0642\u0633\u0645\u062a \u067e\u0627\u06cc\u06cc\u0646\u06cc \u062c\u0627\u0646 \u062a\u06cc\u0631 \u0627\u0633\u062a\u060c \u0647\u0631 \u0635\u0641\u062d\u0647 \u062a\u0642\u0648\u06cc\u062a\u06cc \u062c\u062f\u06cc\u062f \u0628\u0627\u06cc\u062f \u0637\u0648\u0631\u06cc \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u062f \u06a9\u0647 \u0627\u0632 \u0635\u0641\u062d\u0647 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\u062a\u06a9\u0646\u06cc\u06a9\u200c\u0647\u0627\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u062c\u0648\u0634\u06a9\u0627\u0631\u06cc \u0648 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0628\u0627\u0632\u0631\u0633\u06cc \u0645\u0627\u0646\u0646\u062f \u062a\u0633\u062a \u0627\u0648\u0644\u062a\u0631\u0627\u0633\u0648\u0646\u06cc\u06a9 (UT) \u0648 \u062a\u0633\u062a \u0631\u0627\u062f\u06cc\u0648\u06af\u0631\u0627\u0641\u06cc (RT) \u0628\u0631\u0627\u06cc \u062a\u0634\u062e\u06cc\u0635 \u0648 \u062a\u0639\u0645\u06cc\u0631 \u0633\u0631\u06cc\u0639 \u0639\u06cc\u0648\u0628 \u062c\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-3-ensure-material-quality\">\u06f2.\u06f3 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u06a9\u06cc\u0641\u06cc\u062a \u0645\u0648\u0627\u062f<\/h3>\n\n\n\n<p>\u0627\u0632 \u0645\u0648\u0627\u062f \u0628\u0627 \u06a9\u06cc\u0641\u06cc\u062a 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\u062a\u0636\u0645\u06cc\u0646 \u06a9\u0646\u062f. <\/p>","protected":false},"excerpt":{"rendered":"Web cracking at the variable cross-section at the end of the main girder is a common and serious problem in overhead cranes during long-term service. Understanding the causes of crack formation is essential for prevention and resolution. The following is an analysis of the causes of web cracking at the variable cross-section at the end [&hellip;]","protected":false},"featured_media":15933,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[197],"posts_tag":[247],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/xmxposts\/15941"}],"collection":[{"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":7,"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/xmxposts\/15941\/revisions"}],"predecessor-version":[{"id":15951,"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/xmxposts\/15941\/revisions\/15951"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/media\/15933"}],"wp:attachment":[{"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/media?parent=15941"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/posts_category?post=15941"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/fa\/wp-json\/wp\/v2\/posts_tag?post=15941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}