{"id":12018,"date":"2026-07-15T01:18:26","date_gmt":"2026-07-15T01:18:26","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=12018"},"modified":"2026-07-15T01:18:33","modified_gmt":"2026-07-15T01:18:33","slug":"overhead-crane-wheel-diameter-selection-guide","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/vi\/posts\/overhead-crane-wheel-diameter-selection-guide\/","title":{"rendered":"L\u1ef1a ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh b\u00e1nh xe cho c\u1ea7n c\u1ea9u tr\u00ean cao: H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt th\u1ef1c ti\u1ec5n theo ti\u00eau chu\u1ea9n GB\/T 26477.1-2011"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>M\u1ee5c l\u1ee5c<\/p><nav><ul><li><a href=\"#step-1-determine-the-effective-rail-width\">B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh chi\u1ec1u r\u1ed9ng ray hi\u1ec7u qu\u1ea3<\/a><\/li><li><a href=\"#step-2-determine-the-allowable-specific-pressure-pl\">B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh \u00e1p su\u1ea5t ri\u00eang cho ph\u00e9p PL<\/a><\/li><li><a href=\"#step-3-determine-coefficient-c\u2081\">B\u01b0\u1edbc 3: X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 c\u2081<\/a><\/li><li><a href=\"#step-4-determine-coefficient-c\u2082\">B\u01b0\u1edbc 4: X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 c\u2082<\/a><\/li><li><a href=\"#step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">B\u01b0\u1edbc 5: Ki\u1ec3m tra \u0111\u01b0\u1eddng k\u00ednh b\u00e1nh xe c\u1ea7n c\u1ea9u tr\u00ean cao \u2014 C\u00f4ng th\u1ee9c 1 v\u00e0 2<\/a><\/li><li><a href=\"#step-6-calculate-equivalent-working-wheel-load-pmean\">B\u01b0\u1edbc 6: T\u00ednh to\u00e1n t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a b\u00e1nh xe Pmean<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p><a href=\"https:\/\/www.kscranegroup.com\/vi\/crane-wheel-assemblies\/\">B\u00e1nh xe c\u1ea7n c\u1ea9u tr\u00ean cao<\/a> B\u00e1nh xe l\u00e0 c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu t\u1ea3i quan tr\u1ecdng c\u1ee7a c\u01a1 c\u1ea5u di chuy\u1ec3n c\u1ea7n c\u1ea9u, h\u1ed7 tr\u1ee3 to\u00e0n b\u1ed9 c\u1ea5u tr\u00fac c\u1ea7n c\u1ea9u \u0111\u1ed3ng th\u1eddi truy\u1ec1n t\u1ea3i t\u1ea3i tr\u1ecdng b\u00e1nh xe m\u1ed9t c\u00e1ch an to\u00e0n xu\u1ed1ng \u0111\u01b0\u1eddng ray. Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh b\u00e1nh xe c\u1ea7n c\u1ea9u ph\u00f9 h\u1ee3p \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u1ee9ng su\u1ea5t ti\u1ebfp x\u00fac gi\u1eefa b\u00e1nh xe v\u00e0 \u0111\u01b0\u1eddng ray, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh khi v\u1eadn h\u00e0nh, tu\u1ed5i th\u1ecd v\u00e0 chi ph\u00ed b\u1ea3o tr\u00ec. B\u00e1nh xe qu\u00e1 nh\u1ecf c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u00e1p su\u1ea5t \u1ed5 tr\u1ee5c qu\u00e1 m\u1ee9c, m\u00e0i m\u00f2n b\u00e1nh xe v\u00e0 \u0111\u01b0\u1eddng ray nhanh h\u01a1n, v\u00e0 h\u1ecfng h\u00f3c c\u00e1c b\u1ed9 ph\u1eadn s\u1edbm, trong khi b\u00e1nh xe qu\u00e1 l\u1edbn c\u00f3 th\u1ec3 l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng thi\u1ebft b\u1ecb v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t. <\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00ecnh b\u00e0y ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c h\u00e0nh s\u00e1u b\u01b0\u1edbc \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng k\u00ednh b\u00e1nh xe c\u1ea7n c\u1ea9u tr\u00ean cao ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n GB\/T 26477.1-2011, bao g\u1ed3m chi\u1ec1u r\u1ed9ng ray hi\u1ec7u d\u1ee5ng, \u00e1p su\u1ea5t ch\u1ecbu t\u1ea3i ri\u00eang cho ph\u00e9p, h\u1ec7 s\u1ed1 t\u1ed1c \u0111\u1ed9 v\u00e0 chu k\u1ef3 l\u00e0m vi\u1ec7c, t\u1ed5 h\u1ee3p t\u1ea3i tr\u1ecdng v\u00e0 c\u00f4ng th\u1ee9c ki\u1ec3m ch\u1ee9ng k\u1ef9 thu\u1eadt cho c\u1ea7n c\u1ea9u tr\u00ean cao, c\u1ea7n c\u1ea9u gi\u00e0n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb n\u00e2ng h\u1ea1 g\u1eafn tr\u00ean ray kh\u00e1c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1597\" height=\"985\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions.png\" alt=\"\" class=\"wp-image-12011\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions.png 1597w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions-1536x947.png 1536w\" sizes=\"(max-width: 1597px) 100vw, 1597px\" \/><figcaption class=\"wp-element-caption\"><em>C\u00e1c lo\u1ea1i v\u00e0 k\u00edch th\u01b0\u1edbc b\u00e1nh xe (Ngu\u1ed3n: JB\/T 6392-2008)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Ti\u00eau chu\u1ea9n n\u00e0y c\u0169ng cung c\u1ea5p c\u00e1c c\u00f4ng th\u1ee9c \u0111\u1ec3 t\u00ednh to\u00e1n \u1ee9ng su\u1ea5t c\u1ee5c b\u1ed9 trong k\u1ebft c\u1ea5u c\u1ea7n c\u1ea9u do t\u1ea3i tr\u1ecdng b\u00e1nh xe g\u00e2y ra (x\u00e1c \u0111\u1ecbnh \u1ee9ng su\u1ea5t, ph\u00e2n b\u1ed1 t\u1ea3i tr\u1ecdng d\u01b0\u1edbi ray, \u00e1p su\u1ea5t c\u1ee5c b\u1ed9 tr\u00ean c\u00e1c t\u1ea5m m\u1eb7t b\u00edch \u0111\u1ee1 b\u00e1nh xe \u0111\u1ed1i v\u1edbi d\u1ea7m ch\u1eef I v\u00e0 d\u1ea7m h\u1ed9p) v\u00e0 ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh ph\u00e2n lo\u1ea1i nhi\u1ec7m v\u1ee5 c\u1ee7a c\u01a1 c\u1ea5u b\u00e1nh xe di chuy\u1ec3n. Nh\u1eefng n\u1ed9i dung n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong b\u00e0i vi\u1ebft n\u00e0y \u2014 vui l\u00f2ng tham kh\u1ea3o ti\u00eau chu\u1ea9n g\u1ed1c \u0111\u1ec3 c\u00f3 th\u00f4ng tin \u0111\u1ea7y \u0111\u1ee7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-1-determine-the-effective-rail-width\">B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh chi\u1ec1u r\u1ed9ng ray hi\u1ec7u qu\u1ea3<\/h2>\n\n\n\n<p>D\u00e0nh cho b\u1ec1 m\u1eb7t ch\u1ea1y b\u1eb1ng ph\u1eb3ng ho\u1eb7c h\u01a1i d\u1ed1c v\u1edbi t\u1ed5ng chi\u1ec1u r\u1ed9ng <strong>l<\/strong> v\u00e0 b\u00e1n k\u00ednh g\u00f3c <strong>r<\/strong> \u1edf m\u1ed7i b\u00ean:<\/p>\n\n\n\n<p>b = l \u2212 2 \u00d7 r<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1529\" height=\"1029\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Figure-2-P-type-or-QU-type-rail-cross-section.png\" alt=\"\" class=\"wp-image-12012\"\/><figcaption class=\"wp-element-caption\"><em>M\u1eb7t c\u1eaft ngang ray lo\u1ea1i P ho\u1eb7c lo\u1ea1i QU (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<ul>\n<li>\u0110\u1ed1i v\u1edbi ray ho\u1eb7c b\u00e1nh xe c\u00f3 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac h\u01a1i l\u1ed3i, \u00e1p su\u1ea5t ri\u00eang cho ph\u00e9p PL c\u00f3 th\u1ec3 t\u0103ng th\u00eam 10% (do c\u1ea3i thi\u1ec7n ti\u1ebfp x\u00fac gi\u1eefa b\u00e1nh xe v\u00e0 ray).<\/li>\n\n\n\n<li>\u0110\u1ed1i v\u1edbi b\u00e1nh xe ch\u1ea1y tr\u00ean m\u1eb7t b\u00edch d\u01b0\u1edbi c\u1ee7a d\u1ea7m ch\u1eef I (b\u1ec1 m\u1eb7t ph\u1eb3ng, v\u00e1t ho\u1eb7c h\u01a1i l\u1ed3i), chi\u1ec1u r\u1ed9ng hi\u1ec7u d\u1ee5ng l\u00e0 <code>b = w \u2212 r<\/code>v\u00e0 \u0111\u01b0\u1eddng k\u00ednh b\u00e1nh xe D \u0111\u01b0\u1ee3c l\u1ea5y t\u1ea1i \u0111i\u1ec3m gi\u1eefa c\u1ee7a chi\u1ec1u r\u1ed9ng chi\u1ebfu (w \u2212 r).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1416\" height=\"1111\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/3Figure-3-Wheel-running-on-a-beam-flange.png\" alt=\"\" class=\"wp-image-12013\"\/><figcaption class=\"wp-element-caption\"><em>B\u00e1nh xe ch\u1ea1y tr\u00ean m\u1eb7t b\u00edch d\u1ea7m (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-2-determine-the-allowable-specific-pressure-pl\">B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh \u00e1p su\u1ea5t ri\u00eang cho ph\u00e9p PL<\/h2>\n\n\n\n<p>C\u00e1c gi\u00e1 tr\u1ecb PL \u0111\u01b0\u1ee3c cho trong B\u1ea3ng 1. V\u1eadt li\u1ec7u kim lo\u1ea1i ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt d\u00e0nh cho th\u00e9p \u0111\u00fac, r\u00e8n ho\u1eb7c c\u00e1n, ho\u1eb7c gang graphit h\u00ecnh c\u1ea7u. Khi l\u1ef1a ch\u1ecdn PL, c\u00f3 th\u1ec3 t\u00ednh \u0111\u1ebfn \u0111\u1ed9 s\u00e2u l\u1edbp gai c\u1ee9ng 0,01D.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2095\" height=\"751\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table.png\" alt=\"\" class=\"wp-image-12014\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table.png 2095w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table-1536x551.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table-2048x734.png 2048w\" sizes=\"(max-width: 2095px) 100vw, 2095px\" \/><figcaption class=\"wp-element-caption\"><em>B\u1ea3ng 1 B\u1ea3ng gi\u00e1 tr\u1ecb PL (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p>C\u01b0\u1eddng \u0111\u1ed9 k\u00e9o \u0111\u1ee9t t\u1ed1i \u0111a (UTS) l\u00e0 \u1ee9ng su\u1ea5t t\u1ed1i \u0111a m\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi b\u1ecb g\u00e3y d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c k\u00e9o, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng MPa (1 MPa = 1 N\/mm\u00b2), \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng th\u1eed nghi\u1ec7m k\u00e9o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-3-determine-coefficient-c\u2081\">B\u01b0\u1edbc 3: X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 c\u2081<\/h2>\n\n\n\n<p>H\u1ec7 s\u1ed1 c\u2081 \u0111\u01b0\u1ee3c ch\u1ecdn d\u1ef1a tr\u00ean t\u1ed1c \u0111\u1ed9 quay c\u1ee7a b\u00e1nh xe. Xem B\u1ea3ng 2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2008\" height=\"783\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table.png\" alt=\"\" class=\"wp-image-12027\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table.png 2008w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table-1536x599.png 1536w\" sizes=\"(max-width: 2008px) 100vw, 2008px\" \/><figcaption class=\"wp-element-caption\"><em>B\u1ea3ng 2 B\u1ea3ng gi\u00e1 tr\u1ecb c\u2081 (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-4-determine-coefficient-c\u2082\">B\u01b0\u1edbc 4: X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 c\u2082<\/h2>\n\n\n\n<p>H\u1ec7 s\u1ed1 <strong>c\u2082<\/strong> Vi\u1ec7c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean ph\u00e2n lo\u1ea1i nhi\u1ec7m v\u1ee5 c\u00f4ng vi\u1ec7c c\u1ee7a c\u01a1 c\u1ea5u. Theo th\u00f4ng l\u1ec7, \u0111i\u1ec1u n\u00e0y tu\u00e2n theo ph\u00e2n lo\u1ea1i t\u1ed5ng th\u1ec3 c\u1ee7a c\u1ea7n c\u1ea9u v\u00e0 c\u00f3 th\u1ec3 b\u1eb1ng ho\u1eb7c th\u1ea5p h\u01a1n m\u1ed9t c\u1ea5p so v\u1edbi nhi\u1ec7m v\u1ee5 c\u00f4ng vi\u1ec7c c\u1ee7a c\u1ea7n c\u1ea9u. Xem B\u1ea3ng 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table.png\" alt=\"\" class=\"wp-image-12028\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table.png 2172w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table-1536x512.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table-2048x683.png 2048w\" sizes=\"(max-width: 2172px) 100vw, 2172px\" \/><figcaption class=\"wp-element-caption\"><em>B\u1ea3ng 3 B\u1ea3ng gi\u00e1 tr\u1ecb c\u2082 (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">B\u01b0\u1edbc 5: Ki\u1ec3m tra \u0111\u01b0\u1eddng k\u00ednh b\u00e1nh xe c\u1ea7n c\u1ea9u tr\u00ean cao \u2014 C\u00f4ng th\u1ee9c 1 v\u00e0 2<\/h2>\n\n\n\n<p>\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc b\u00e1nh xe cu\u1ed1i c\u00f9ng, c\u1ea7n ki\u1ec3m tra xem b\u00e1nh xe c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng v\u1eadn h\u00e0nh t\u1ed1i \u0111a m\u00e0 kh\u00f4ng b\u1ecb m\u00f2n qu\u00e1 m\u1ee9c hay kh\u00f4ng. C\u00f3 hai c\u00f4ng th\u1ee9c ki\u1ec3m tra \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng (C\u00f4ng th\u1ee9c 1 v\u00e0 C\u00f4ng th\u1ee9c 2).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1842\" height=\"854\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1.png\" alt=\"\" class=\"wp-image-12015\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1.png 1842w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1-1536x712.png 1536w\" sizes=\"(max-width: 1842px) 100vw, 1842px\" \/><figcaption class=\"wp-element-caption\"><em>C\u00f4ng th\u1ee9c 1 (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2184\" height=\"720\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2.png\" alt=\"\" class=\"wp-image-12016\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2.png 2184w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2-1536x506.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2-2048x675.png 2048w\" sizes=\"(max-width: 2184px) 100vw, 2184px\" \/><figcaption class=\"wp-element-caption\"><em>C\u00f4ng th\u1ee9c 2 (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Bi\u1ec3u t\u01b0\u1ee3ng<\/th><th>Ngh\u0129a<\/th><th>\u0110\u01a1n v\u1ecb<\/th><\/tr><\/thead><tbody><tr><td>D<\/td><td>\u0110\u01b0\u1eddng k\u00ednh b\u00e1nh xe<\/td><td>mm<\/td><\/tr><tr><td>b<\/td><td>Chi\u1ec1u r\u1ed9ng ray hi\u1ec7u qu\u1ea3<\/td><td>mm<\/td><\/tr><tr><td>PL<\/td><td>\u00c1p su\u1ea5t ri\u00eang cho ph\u00e9p (t\u1eeb B\u1ea3ng 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>H\u1ec7 s\u1ed1 ph\u1ee5 thu\u1ed9c t\u1ed1c \u0111\u1ed9 (t\u1eeb B\u1ea3ng 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>H\u1ec7 s\u1ed1 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7m v\u1ee5 (t\u1eeb B\u1ea3ng 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>T\u1ea3i tr\u1ecdng t\u1ed1i \u0111a c\u1ee7a b\u00e1nh xe d\u01b0\u1edbi t\u1ed5 h\u1ee3p t\u1ea3i A, B ho\u1eb7c C (bao g\u1ed3m c\u1ea3 t\u1ea3i th\u1eed nghi\u1ec7m \u0111\u1ed9ng v\u00e0 t\u0129nh)<\/td><td>N<\/td><\/tr><tr><td>Pmean<\/td><td>T\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a b\u00e1nh xe \u0111\u1ed1i v\u1edbi t\u1ed5 h\u1ee3p A v\u00e0 B, \u0111\u01b0\u1ee3c l\u1ea5y l\u00e0m gi\u00e1 tr\u1ecb t\u1ed1i \u0111a.<\/td><td>N<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"load-combination-categories\">C\u00e1c lo\u1ea1i t\u1ed5 h\u1ee3p t\u1ea3i<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Bi\u1ec3u t\u01b0\u1ee3ng<\/th><th>Ngh\u0129a<\/th><th>\u0110\u01a1n v\u1ecb<\/th><\/tr><\/thead><tbody><tr><td>D<\/td><td>\u0110\u01b0\u1eddng k\u00ednh b\u00e1nh xe<\/td><td>mm<\/td><\/tr><tr><td>b<\/td><td>Chi\u1ec1u r\u1ed9ng ray hi\u1ec7u qu\u1ea3<\/td><td>mm<\/td><\/tr><tr><td>PL<\/td><td>\u00c1p su\u1ea5t ri\u00eang cho ph\u00e9p (t\u1eeb B\u1ea3ng 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>H\u1ec7 s\u1ed1 ph\u1ee5 thu\u1ed9c t\u1ed1c \u0111\u1ed9 (t\u1eeb B\u1ea3ng 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>H\u1ec7 s\u1ed1 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7m v\u1ee5 (t\u1eeb B\u1ea3ng 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>T\u1ea3i tr\u1ecdng t\u1ed1i \u0111a c\u1ee7a b\u00e1nh xe d\u01b0\u1edbi t\u1ed5 h\u1ee3p t\u1ea3i A, B ho\u1eb7c C (bao g\u1ed3m c\u1ea3 t\u1ea3i th\u1eed nghi\u1ec7m \u0111\u1ed9ng v\u00e0 t\u0129nh)<\/td><td>N<\/td><\/tr><tr><td>Pmean<\/td><td>T\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a b\u00e1nh xe \u0111\u1ed1i v\u1edbi t\u1ed5 h\u1ee3p A v\u00e0 B, \u0111\u01b0\u1ee3c l\u1ea5y l\u00e0m gi\u00e1 tr\u1ecb t\u1ed1i \u0111a.<\/td><td>N<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-6-calculate-equivalent-working-wheel-load-pmean\">B\u01b0\u1edbc 6: T\u00ednh to\u00e1n t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a b\u00e1nh xe Pmean<\/h2>\n\n\n\n<p>Pmean \u2014 t\u1ea3i tr\u1ecdng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a b\u00e1nh xe khi x\u00e9t \u0111\u1ebfn c\u00e1c t\u1ed5 h\u1ee3p t\u1ea3i A v\u00e0 B \u2014 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n g\u1ea7n \u0111\u00fang b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng C\u00f4ng th\u1ee9c 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3.png\" alt=\"\" class=\"wp-image-12017\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3.png 2172w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3-1536x512.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3-2048x683.png 2048w\" sizes=\"(max-width: 2172px) 100vw, 2172px\" \/><figcaption class=\"wp-element-caption\"><em>C\u00f4ng th\u1ee9c 3 (Ngu\u1ed3n: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>H\u1ea1n ch\u1ebf quan tr\u1ecdng<\/strong>C\u00e1c c\u00f4ng th\u1ee9c tr\u00ean ch\u1ec9 \u00e1p d\u1ee5ng cho b\u00e1nh xe c\u00f3 \u0111\u01b0\u1eddng k\u00ednh kh\u00f4ng qu\u00e1 1,25 m. Kinh nghi\u1ec7m cho th\u1ea5y \u0111\u1ed1i v\u1edbi \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n, \u00e1p su\u1ea5t cho ph\u00e9p gi\u1eefa ray v\u00e0 b\u00e1nh xe c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng; kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng b\u00e1nh xe c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n.<\/p>\n\n\n\n<p><strong>Ti\u00eau chu\u1ea9n tham chi\u1ebfu<strong><strong><strong><strong>(<a href=\"https:\/\/openstd.samr.gov.cn\/bzgk\/std\/std_list?p.p1=0&amp;p.p90=circulation_date&amp;p.p91=desc&amp;p.p2=%E8%B5%B7%E9%87%8D%E6%9C%BA\" target=\"_blank\" rel=\"noopener\">Tra c\u1ee9u ti\u00eau chu\u1ea9n c\u1ea7n c\u1ea9u Trung Qu\u1ed1c<\/a>)<\/strong><\/strong><\/strong><\/strong>:<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 26477.1-2011 C\u1ea7n c\u1ea9u \u2014 T\u00ednh to\u00e1n thi\u1ebft k\u1ebf cho b\u00e1nh xe v\u00e0 k\u1ebft c\u1ea5u \u0111\u1ee1 \u0111\u01b0\u1eddng ray xe \u0111\u1ea9y li\u00ean quan \u2014 Ph\u1ea7n 1: T\u1ed5ng quan<\/li>\n\n\n\n<li>Ti\u00eau chu\u1ea9n GB\/T 6974.1-2008 C\u1ea7n c\u1ea9u \u2014 Thu\u1eadt ng\u1eef \u2014 Ph\u1ea7n 1: T\u1ed5ng qu\u00e1t (IDT ISO 4306-1:2007)<\/li>\n\n\n\n<li>Ti\u00eau chu\u1ea9n GB\/T 20863.1-2021 C\u1ea7n c\u1ea9u \u2014 Ph\u00e2n lo\u1ea1i \u2014 Ph\u1ea7n 1: T\u1ed5ng qu\u00e1t (IDT ISO 4301-1:2016)<\/li>\n\n\n\n<li>Ti\u00eau chu\u1ea9n GB\/T 22437.1-2018 C\u1ea7n c\u1ea9u \u2014 Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf t\u1ea3i tr\u1ecdng v\u00e0 t\u1ed5 h\u1ee3p t\u1ea3i tr\u1ecdng \u2014 Ph\u1ea7n 1: T\u1ed5ng quan<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"When designing or procuring an overhead crane, how do you determine the correct wheel diameter for a given wheel load? The answer involves effective rail width, allowable specific bearing pressure, sp","protected":false},"featured_media":10134,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[867,868,801,62,863,850,121,865,864,866],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/xmxposts\/12018"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions"}],"predecessor-version":[{"id":12054,"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions\/12054"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/media\/10134"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/media?parent=12018"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/posts_category?post=12018"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/vi\/wp-json\/wp\/v2\/posts_tag?post=12018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}