{"id":1676,"date":"2026-02-15T00:35:53","date_gmt":"2026-02-14T17:35:53","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-hop-cho-cong-hang-rao-lan-can-mac-thep-va-do-day-chuan\/"},"modified":"2026-02-15T00:35:53","modified_gmt":"2026-02-14T17:35:53","slug":"inox-hop-cho-cong-hang-rao-lan-can-mac-thep-va-do-day-chuan","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-hop-cho-cong-hang-rao-lan-can-mac-thep-va-do-day-chuan\/","title":{"rendered":"Inox h\u1ed9p cho c\u1ed5ng, h\u00e0ng r\u00e0o, lan can: m\u00e1c th\u00e9p v\u00e0 \u0111\u1ed9 d\u00e0y chu\u1ea9n"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-vi-sao-inox-hop-phu-hop-cho-cong-hang-rao-lan-can-\">V\u00ec sao inox h\u1ed9p ph\u00f9 h\u1ee3p cho c\u1ed5ng, h\u00e0ng r\u00e0o, lan can ch\u1ecbu l\u1ef1c?<\/a><\/li>\n<li><a href=\"#toc-1-chon-mac-inox-theo-moi-truong-su-dung\">Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-2-tieu-chuan-vat-lieu-kiem-soat-chat-luong\">Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u &#038; ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/a><\/li>\n<li><a href=\"#toc-3-kich-thuoc-do-day-bao-nhieu-la-du\">K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y: bao nhi\u00eau l\u00e0 \u0111\u1ee7?<\/a><\/li>\n<li><a href=\"#toc-4-tinh-nhanh-lan-can-chiu-luc-vi-du-minh-hoa\">T\u00ednh nhanh lan can ch\u1ecbu l\u1ef1c (v\u00ed d\u1ee5 minh h\u1ecda)<\/a><\/li>\n<li><a href=\"#toc-5-tinh-tai-gio-don-gian-cho-cong-va-hang-rao\">T\u00ednh t\u1ea3i gi\u00f3 \u0111\u01a1n gi\u1ea3n cho c\u1ed5ng v\u00e0 h\u00e0ng r\u00e0o<\/a><\/li>\n<li><a href=\"#toc-6-chi-tiet-cau-tao-va-thi-cong-de-cong-trinh-ben-102\">Chi ti\u1ebft c\u1ea5u t\u1ea1o v\u00e0 thi c\u00f4ng \u0111\u1ec3 c\u00f4ng tr\u00ecnh b\u1ec1n 10\u201320 n\u0103m<\/a><\/li>\n<li><a href=\"#toc-7-bao-tri-ve-sinh\">B\u1ea3o tr\u00ec \u2013 v\u1ec7 sinh<\/a><\/li>\n<li><a href=\"#toc-8-loi-thuong-gap-va-cach-tranh\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-9-toi-uu-chi-phi-bao-gia\">T\u1ed1i \u01b0u chi ph\u00ed \u2013 b\u00e1o gi\u00e1<\/a><\/li>\n<li><a href=\"#toc-10-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>C\u00e1c k\u1ebft c\u1ea5u ngo\u00e0i tr\u1eddi nh\u01b0 c\u1ed5ng, h\u00e0ng r\u00e0o v\u00e0 lan can v\u1eeba ph\u1ea3i b\u1ec1n c\u01a1 h\u1ecdc v\u1eeba ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t. Inox h\u1ed9p (\u1ed1ng h\u1ed9p inox) l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u n\u1ebfu ch\u1ecdn \u0111\u00fang m\u00e1c th\u00e9p, k\u00edch th\u01b0\u1edbc v\u00e0 thi c\u00f4ng \u0111\u1ea1t chu\u1ea9n. B\u00e0i vi\u1ebft n\u00e0y l\u00e0 h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh \u0111\u1ea7y \u0111\u1ee7: t\u1eeb ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u, ch\u1ecdn m\u00e1c 201\/304\/316, \u0111\u1ed9 d\u00e0y bao nhi\u00eau l\u00e0 \u201c\u0111\u1ee7\u201d, \u0111\u1ebfn t\u00ednh nhanh t\u1ea3i lan can, t\u1ea3i gi\u00f3 cho c\u1ed5ng\/h\u00e0ng r\u00e0o v\u00e0 chi ti\u1ebft thi c\u00f4ng \u0111\u1ec3 c\u00f4ng tr\u00ecnh b\u1ec1n 10\u201320 n\u0103m. Ch\u1ee7 \u0111\u1ec1 n\u00e0y c\u0169ng l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong c\u1ea9m nang v\u1ec1 \u1ed1ng v\u00e0 h\u1ed9p inox (ph\u00e2n lo\u1ea1i, ti\u00eau chu\u1ea9n, \u1ee9ng d\u1ee5ng), nh\u01b0ng b\u00e0i vi\u1ebft \u0111\u1ee9ng ri\u00eang nh\u01b0 m\u1ed9t h\u01b0\u1edbng d\u1eabn ho\u00e0n ch\u1ec9nh.<\/p>\n<h2 id=\"toc-0-vi-sao-inox-hop-phu-hop-cho-cong-hang-rao-lan-can-\">V\u00ec sao inox h\u1ed9p ph\u00f9 h\u1ee3p cho c\u1ed5ng, h\u00e0ng r\u00e0o, lan can ch\u1ecbu l\u1ef1c?<\/h2>\n<p>&#8211; C\u01a1 t\u00ednh t\u1ed1t: m\u00e1c 304\/316 c\u00f3 gi\u1edbi h\u1ea1n ch\u1ea3y \u0111i\u1ec3n h\u00ecnh ~205 MPa, \u0111\u1ed9 b\u1ec1n k\u00e9o ~515 MPa; m\u00e1c 201 th\u01b0\u1eddng cao h\u01a1n v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 nh\u01b0ng k\u00e9m ch\u1ed1ng g\u1ec9 h\u01a1n. Th\u00e0nh m\u1ecfng v\u1eabn \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng nh\u1edd ti\u1ebft di\u1ec7n r\u1ed7ng.<br \/>\n&#8211; Ch\u1ed1ng \u0103n m\u00f2n: b\u1ec1n trong m\u01b0a n\u1eafng, \u00f4 nhi\u1ec5m \u0111\u00f4 th\u1ecb; v\u1edbi m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n\/h\u00f3a ch\u1ea5t, ch\u1ecdn 316 \u0111\u1ec3 tr\u00e1nh r\u1ec9 n\u00e2u.<br \/>\n&#8211; Th\u1ea9m m\u1ef9 \u2013 ho\u00e0n thi\u1ec7n \u0111a d\u1ea1ng: hairline No.4, b\u00f3ng g\u01b0\u01a1ng 8K, x\u01b0\u1edbc m\u1ecbn HL; d\u1ec5 v\u1ec7 sinh, kh\u00f4ng c\u1ea7n s\u01a1n l\u1eb7p l\u1ea1i nh\u01b0 th\u00e9p cacbon.<br \/>\n&#8211; Gia c\u00f4ng \u2013 l\u1eafp d\u1ef1ng nhanh: c\u1eaft, h\u00e0n, ch\u00e0 x\u01b0\u1edbc, \u0111\u00e1nh b\u00f3ng thu\u1eadn ti\u1ec7n; h\u1ec7 ph\u1ee5 ki\u1ec7n \u0111\u1ed3ng b\u1ed9 (b\u1ea3n m\u00e3, co n\u1ed1i, n\u1eafp b\u1ecbt).<\/p>\n<h2 id=\"toc-1-chon-mac-inox-theo-moi-truong-su-dung\">Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng<\/h2>\n<p>&#8211; Inox 201 (Cr\u2013Mn\u2013Ni th\u1ea5p): d\u00f9ng cho n\u1ed9i th\u1ea5t, m\u00e1i che k\u00edn, m\u00f4i tr\u01b0\u1eddng kh\u00f4, \u00edt chloride. Kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho ven bi\u1ec3n\/ngo\u00e0i tr\u1eddi \u00f4 nhi\u1ec5m n\u1eb7ng v\u00ec d\u1ec5 r\u1ec9 n\u00e2u theo th\u1eddi gian.<br \/>\n&#8211; Inox 304 (A2\/4301): l\u1ef1a ch\u1ecdn chu\u1ea9n cho \u0111\u00f4 th\u1ecb, ngo\u1ea1i th\u1ea5t th\u00f4ng th\u01b0\u1eddng, m\u01b0a n\u1eafng, kh\u00f3i b\u1ee5i. C\u00e2n b\u1eb1ng gi\u1eefa gi\u00e1\/\u0111\u1ed9 b\u1ec1n\/kh\u1ea3 d\u1ee5ng ph\u1ee5 ki\u1ec7n.<br \/>\n&#8211; Inox 316 (A4\/4401): \u01b0u ti\u00ean khi g\u1ea7n bi\u1ec3n (<5\u201310 km), khu c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t\/ph\u00e2n b\u00f3n, h\u1ed3 b\u01a1i n\u01b0\u1edbc m\u1eb7n\/chlorine. H\u00e0m l\u01b0\u1ee3ng Mo gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 pitting.\n- Inox 430 (ferritic): ch\u1ec9 ph\u00f9 h\u1ee3p trang tr\u00ed trong nh\u00e0, kh\u00f4ng n\u00ean d\u00f9ng l\u00e0m k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c\/ngo\u00e0i tr\u1eddi.\n\nG\u1ee3i \u00fd nhanh:\n- Nh\u00e0 ph\u1ed1 n\u1ed9i \u0111\u00f4: 304.\n- Ven bi\u1ec3n, \u0111\u1ea3o, c\u00f4ng vi\u00ean n\u01b0\u1edbc: 316.\n- Kinh ph\u00ed h\u1ea1n ch\u1ebf v\u00e0 trong nh\u00e0: 201 (c\u00f3 bi\u1ec7n ph\u00e1p b\u1ea3o tr\u00ec).\n\nNgu\u1ed3n tham kh\u1ea3o v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n: ASSDA, Nickel Institute, Outokumpu datasheets (xem T\u00e0i li\u1ec7u tham kh\u1ea3o).\n\n\n\n<h2 id=\"toc-2-tieu-chuan-vat-lieu-kiem-soat-chat-luong\">Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u &#038; ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n<p>&#8211; \u1ed0ng\/h\u1ed9p inox: \u01b0u ti\u00ean theo ASTM A554 (Welded Stainless Steel Mechanical Tubing) cho \u1ed1ng h\u1ed9p trang tr\u00ed \u2013 c\u01a1 kh\u00ed. Ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh th\u00e0nh ph\u1ea7n, dung sai k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 th\u1eb3ng, th\u1eed c\u01a1 t\u00ednh v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t.<br \/>\n&#8211; Th\u00e0nh ph\u1ea7n m\u00e1c theo EN 10088\/ASTM A240 (t\u1ea5m, cu\u1ed9n): \u0111\u1ea3m b\u1ea3o \u0111\u00fang 304\/316\/201 th\u1ef1c (tr\u00e1nh \u201c304 gi\u1ea3\u201d Ni th\u1ea5p).<br \/>\n&#8211; Ki\u1ec3m tra \u0111\u1ea7u v\u00e0o:<br \/>\n  &#8211; \u0110o chi\u1ec1u d\u00e0y t\u00f4n\/\u1ed1ng (\u00b10.05\u20130.1 mm), \u0111\u1ed9 vu\u00f4ng g\u00f3c g\u00f3c h\u1ed9p, \u0111\u1ed9 th\u1eb3ng.<br \/>\n  &#8211; Ki\u1ec3m tra m\u00e1c nhanh b\u1eb1ng m\u00e1y quang ph\u1ed5 c\u1ea7m tay (PMI) t\u1ea1i nh\u00e0 x\u01b0\u1edfng khi c\u1ea7n.<br \/>\n  &#8211; B\u1ec1 m\u1eb7t: \u0111\u1ed3ng \u0111\u1ec1u, kh\u00f4ng l\u1eabn x\u01b0\u1edbc s\u00e2u, kh\u00f4ng r\u1ed7.<\/p>\n<h2 id=\"toc-3-kich-thuoc-do-day-bao-nhieu-la-du\">K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y: bao nhi\u00eau l\u00e0 \u0111\u1ee7?<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 khuy\u1ebfn ngh\u1ecb th\u1ef1c t\u1ebf cho c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng\/nh\u00e0 x\u01b0\u1edfng nh\u1eb9. \u0110i\u1ec1u ki\u1ec7n \u0111\u1eb7c bi\u1ec7t (gi\u00f3 b\u00e3o l\u1edbn, cao t\u1ea7ng, c\u00f4ng c\u1ed9ng \u0111\u00f4ng ng\u01b0\u1eddi) c\u1ea7n t\u00ednh to\u00e1n chi ti\u1ebft.<\/p>\n<p>&#8211; Lan can ban c\u00f4ng \u2013 c\u1ea7u thang (d\u00e2n d\u1ee5ng):<br \/>\n  &#8211; C\u1ed9t (post): 60\u00d760\u00d71.5\u20132.0 mm (304; 316 n\u1ebfu ven bi\u1ec3n)<br \/>\n  &#8211; Tay v\u1ecbn\/tr\u1ee5 tr\u00ean: 40\u00d740\u00d71.2\u20131.5 mm<br \/>\n  &#8211; Nan\/baluster: 20\u00d720\u00d70.9\u20131.0 mm<br \/>\n  &#8211; B\u01b0\u1edbc c\u1ed9t: 1.0\u20131.5 m; khe h\u1edf nan \u2264100 mm \u0111\u1ec3 ch\u1ed1ng k\u1eb9t \u0111\u1ea7u tr\u1ebb nh\u1ecf (theo th\u00f4ng l\u1ec7 an to\u00e0n qu\u1ed1c t\u1ebf)<br \/>\n&#8211; H\u00e0ng r\u00e0o ngo\u00e0i tr\u1eddi:<br \/>\n  &#8211; C\u1ed9t: 60\u00d760\u00d71.5\u20132.0 mm (cao 1.2\u20131.8 m), b\u1ea3n m\u00e3 d\u00e0y 6\u20138 mm, bul\u00f4ng n\u1edf M10\u2013M12<br \/>\n  &#8211; Thanh khung: 30\u00d760\u00d71.2\u20131.5 mm<br \/>\n  &#8211; Nan: 20\u00d720\u00d70.9\u20131.0 mm<br \/>\n  &#8211; B\u01b0\u1edbc c\u1ed9t: 1.8\u20132.4 m (t\u00f9y gi\u00f3 v\u00e0 \u0111\u1ecba h\u00ecnh)<br \/>\n&#8211; C\u1ed5ng m\u1edf 2 c\u00e1nh (r\u1ed9ng 3\u20134 m, cao ~1.8\u20132.0 m):<br \/>\n  &#8211; Khung bi\u00ean: 60\u00d7120\u00d72.0\u20132.5 mm<br \/>\n  &#8211; X\u01b0\u01a1ng ngang\/d\u1ecdc: 40\u00d780\u00d71.5\u20132.0 mm<br \/>\n  &#8211; Nan trang tr\u00ed: 20\u00d740\u00d71.0\u20131.2 mm<br \/>\n  &#8211; B\u1ea3n l\u1ec1 n\u1eb7ng, tr\u1ee5c ch\u1ed1t \u03a616\u201320 mm (304\/316), t\u1ed1i thi\u1ec3u 2\u20133 b\u1ea3n l\u1ec1\/c\u00e1nh, b\u1ea3n m\u00e3 8\u201310 mm<\/p>\n<p>L\u01b0u \u00fd: t\u0103ng \u0111\u1ed9 d\u00e0y 0.2\u20130.5 mm gi\u00fap gi\u1ea3m v\u00f5ng, t\u0103ng tu\u1ed5i th\u1ecd m\u1ed1i h\u00e0n \u0111\u00e1ng k\u1ec3 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<h2 id=\"toc-4-tinh-nhanh-lan-can-chiu-luc-vi-du-minh-hoa\">T\u00ednh nhanh lan can ch\u1ecbu l\u1ef1c (v\u00ed d\u1ee5 minh h\u1ecda)<\/h2>\n<p>Gi\u1ea3 thi\u1ebft thi\u1ebft k\u1ebf tham kh\u1ea3o (theo th\u00f4ng l\u1ec7 IBC\/EN, xem T\u00e0i li\u1ec7u tham kh\u1ea3o):<br \/>\n&#8211; T\u1ea3i ngang ph\u00e2n b\u1ed1 tr\u00ean tay v\u1ecbn: 0.75\u20131.0 kN\/m<br \/>\n&#8211; Chi\u1ec1u cao tay v\u1ecbn: ~1.1 m<br \/>\n&#8211; Nh\u1ecbp gi\u1eefa c\u1ed9t: 1.2 m<\/p>\n<p>V\u00ed d\u1ee5 ch\u1ecdn tay v\u1ecbn 40\u00d740\u00d71.2 mm (304), nh\u1ecbp 1.2 m, t\u1ea3i 1.0 kN\/m:<br \/>\n&#8211; Momen u\u1ed1n l\u1edbn nh\u1ea5t wL\u00b2\/8 = 1.0\u00d71.2\u00b2\/8 \u2248 0.18 kN\u00b7m = 180 N\u00b7m<br \/>\n&#8211; M\u00f4 \u0111un ch\u1ed1ng u\u1ed1n Z c\u1ee7a 40\u00d740\u00d71.2 mm \u2248 2.34\u00d710\u207b\u2076 m\u00b3<br \/>\n&#8211; \u1ee8ng su\u1ea5t u\u1ed1n \u03c3 = M\/Z \u2248 77 MPa < gi\u1edbi h\u1ea1n ch\u1ea3y 304 (~205 MPa) \u2192 \u0111\u1ea1t\n- \u0110\u1ed9 v\u00f5ng \u03b4 \u2248 3.0 mm < L\/200 = 6 mm \u2192 \u0111\u1ea1t\n\nKi\u1ec3m tra c\u1ed9t lan can 60\u00d760\u00d72.0 mm (304), coi nh\u01b0 c\u00f4ng x\u00f4n, nh\u1eadn t\u1ea3i t\u1eadp trung F = 1.0 kN\/m \u00d7 1.2 m = 1.2 kN t\u1ea1i cao 1.1 m:\n- Momen ch\u00e2n c\u1ed9t M = 1.2\u00d71.1 \u2248 1.32 kN\u00b7m\n- Z c\u1ee7a 60\u00d760\u00d72.0 mm \u2248 8.68\u00d710\u207b\u2076 m\u00b3 \u2192 \u03c3 \u2248 152 MPa < 205 MPa \u2192 \u0111\u1ea1t\n- \u0110\u1ed9 v\u00f5ng \u0111\u1ec9nh \u2248 10\u201311 mm, th\u01b0\u1eddng n\u1eb1m trong gi\u1edbi h\u1ea1n s\u1eed d\u1ee5ng (\u226420\u201325 mm cho d\u00e2n d\u1ee5ng)\n\nK\u1ebft lu\u1eadn: c\u1ea5u h\u00ecnh tay v\u1ecbn 40\u00d740\u00d71.2 + c\u1ed9t 60\u00d760\u00d72.0 b\u1eb1ng 304 \u0111\u00e1p \u1ee9ng t\u1ed1t lan can d\u00e2n d\u1ee5ng v\u1edbi b\u01b0\u1edbc c\u1ed9t 1.2 m.\n\n\n\n<h2 id=\"toc-5-tinh-tai-gio-don-gian-cho-cong-va-hang-rao\">T\u00ednh t\u1ea3i gi\u00f3 \u0111\u01a1n gi\u1ea3n cho c\u1ed5ng v\u00e0 h\u00e0ng r\u00e0o<\/h2>\n<p>Ph\u01b0\u01a1ng ph\u00e1p nhanh theo \u00e1p l\u1ef1c gi\u00f3 q \u2248 0.613\u00b7V\u00b2 (N\/m\u00b2) v\u1edbi V (m\/s) \u1edf cao \u0111\u1ed9 l\u00e0m vi\u1ec7c (theo ASCE\/EN d\u1ea1ng \u0111\u01a1n gi\u1ea3n):<br \/>\n&#8211; V\u00ed d\u1ee5: V = 31 m\/s \u2192 q \u2248 0.613\u00d731\u00b2 \u2248 590 N\/m\u00b2<br \/>\n&#8211; C\u00e1nh c\u1ed5ng 1.5 m \u00d7 2.0 m \u2192 di\u1ec7n t\u00edch A = 3.0 m\u00b2, l\u1ef1c gi\u00f3 F = q\u00b7A \u2248 1770 N<br \/>\n&#8211; M\u00f4 men l\u00ean b\u1ea3n l\u1ec1 (t\u00e2m \u00e1p t\u1ea1i 1\/2 b\u1ec1 r\u1ed9ng): M \u2248 F\u00d70.75 \u2248 1328 N\u00b7m<br \/>\n&#8211; Y\u00eau c\u1ea7u: ch\u1ecdn b\u1ea3n l\u1ec1, b\u1ea3n m\u00e3, m\u1ed1i h\u00e0n ch\u1ecbu \u0111\u01b0\u1ee3c M v\u00e0 l\u1ef1c c\u1eaft k\u00e8m h\u1ec7 s\u1ed1 an to\u00e0n \u22651.5; gia c\u01b0\u1eddng x\u01b0\u01a1ng ngang\/d\u1ecdc v\u00e0 b\u1ea3n t\u0103ng c\u1ee9ng t\u1ea1i v\u1ecb tr\u00ed b\u1ea3n l\u1ec1, \u1ed5 kh\u00f3a.<\/p>\n<p>\u0110\u1ed1i v\u1edbi h\u00e0ng r\u00e0o th\u00f4ng tho\u00e1ng (nan th\u01b0a), d\u00f9ng h\u1ec7 s\u1ed1 c\u1ea3n gi\u00f3 gi\u1ea3m (gi\u1ea3m l\u1ef1c 20\u201340% t\u00f9y \u0111\u1ed9 r\u1ed7ng), nh\u01b0ng v\u1eabn n\u00ean ki\u1ec3m tra c\u1ed9t v\u00e0 m\u00f3ng\/bu l\u00f4ng neo.<\/p>\n<p>Khuy\u1ebfn ngh\u1ecb:<br \/>\n&#8211; C\u1ed9t h\u00e0ng r\u00e0o cao 1.8 m: 60\u00d760\u00d71.5\u20132.0 mm; kho\u1ea3ng c\u00e1ch 2.0 m; b\u1ea3n m\u00e3 6\u20138 mm + 4 bul\u00f4ng n\u1edf M10\u2013M12. Khu v\u1ef1c gi\u00f3 m\u1ea1nh gi\u1ea3m b\u01b0\u1edbc c\u1ed9t c\u00f2n 1.5\u20131.8 m.<br \/>\n&#8211; C\u1ed5ng r\u1ed9ng >3 m: d\u00f9ng 60\u00d7120\u00d72.0\u20132.5 mm cho khung, th\u00eam gi\u1eb1ng ch\u00e9o ho\u1eb7c x\u01b0\u01a1ng trung t\u00e2m \u0111\u1ec3 h\u1ea1n ch\u1ebf v\u00f5ng.<\/p>\n<h2 id=\"toc-6-chi-tiet-cau-tao-va-thi-cong-de-cong-trinh-ben-102\">Chi ti\u1ebft c\u1ea5u t\u1ea1o v\u00e0 thi c\u00f4ng \u0111\u1ec3 c\u00f4ng tr\u00ecnh b\u1ec1n 10\u201320 n\u0103m<\/h2>\n<h3>Gia c\u00f4ng c\u1eaft \u2013 h\u00e0n<\/h3>\n<p>&#8211; H\u00e0n TIG\/MIG, d\u00f9ng d\u00e2y h\u00e0n:<br \/>\n  &#8211; 304 \u2192 ER308L; 316 \u2192 ER316L; 201 \u2192 ER201 ho\u1eb7c ER308L khi h\u00e0n l\u1eabn v\u1edbi 304<br \/>\n&#8211; L\u00e0m s\u1ea1ch kim lo\u1ea1i g\u1ed1c, tr\u00e1nh nhi\u1ec5m b\u1ea9n s\u1eaft (kh\u00f4ng d\u00f9ng chung \u0111\u00e1 m\u00e0i\/ b\u00e0n ch\u1ea3i v\u1edbi th\u00e9p \u0111en).<br \/>\n&#8211; X\u1eed l\u00fd m\u1ed1i h\u00e0n: t\u1ea9y\/passivation b\u1eb1ng gel pickling ph\u00f9 h\u1ee3p, r\u1eeda s\u1ea1ch, trung h\u00f2a.<br \/>\n&#8211; Thi\u1ebft k\u1ebf g\u00f3c m\u1ed9ng 45\u00b0, m\u00e9p v\u00e1t khi c\u1ea7n, h\u00e0n k\u00edn \u0111\u1ec3 tr\u00e1nh th\u1ea5m n\u01b0\u1edbc.<\/p>\n<h3>Li\u00ean k\u1ebft b\u1ea3n m\u00e3 \u2013 bu l\u00f4ng<\/h3>\n<p>&#8211; B\u1ea3n m\u00e3 304\/316 d\u00e0y 6\u201310 mm, h\u00e0n li\u00ean t\u1ee5c 4 c\u1ea1nh.<br \/>\n&#8211; Bu l\u00f4ng \u2013 \u1ed1c \u2013 long \u0111en \u0111\u1ed3ng b\u1ed9 A2-70 (304) ho\u1eb7c A4-70 (316). Tr\u00e1nh d\u00f9ng bu l\u00f4ng th\u00e9p \u0111en g\u00e2y pin \u0111i\u1ec7n h\u00f3a v\u00e0 r\u1ec9 loang.<br \/>\n&#8211; Neo h\u00f3a ch\u1ea5t\/ n\u1edf th\u00e9p kh\u00f4ng g\u1ec9 M10\u2013M12 cho lan can\/h\u00e0ng r\u00e0o; ki\u1ec3m tra c\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng n\u1ec1n.<\/p>\n<h3>Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/h3>\n<p>&#8211; Ch\u1ecdn No.4\/HL cho ngo\u1ea1i th\u1ea5t \u0111\u1ec3 che x\u01b0\u1edbc t\u1ed1t; 8K b\u00f3ng g\u01b0\u01a1ng h\u1ee3p c\u00f4ng tr\u00ecnh cao c\u1ea5p nh\u01b0ng d\u1ec5 l\u1ed9 v\u1ebft.<br \/>\n&#8211; B\u1ecbt \u0111\u1ea7u h\u1ed9p b\u1eb1ng n\u1eafp inox ho\u1eb7c nh\u1ef1a ch\u1ed1ng tia UV; khoan l\u1ed7 tho\u00e1t n\u01b0\u1edbc \u1edf v\u1ecb tr\u00ed khu\u1ea5t \u0111\u1ec3 ng\u0103n \u0111\u1ecdng n\u01b0\u1edbc g\u00e2y \u1ed1.<br \/>\n&#8211; Kh\u00f4ng ph\u1ee7 s\u01a1n l\u00ean inox tr\u1eeb khi c\u00f3 h\u1ec7 s\u01a1n chuy\u00ean d\u1ee5ng; vi\u1ec7c s\u01a1n th\u01b0\u1eddng bong tr\u00f3c do b\u00e1m d\u00ednh k\u00e9m.<\/p>\n<h3>L\u1eafp \u0111\u1eb7t \u2013 chi ti\u1ebft s\u1eed d\u1ee5ng<\/h3>\n<p>&#8211; Khe h\u1edf nan lan can \u2264100 mm; chi\u1ec1u cao tay v\u1ecbn t\u1ed1i thi\u1ec3u ~1.1 m cho ban c\u00f4ng; tay v\u1ecbn c\u1ea7u thang ~0.9\u20131.0 m (tham kh\u1ea3o th\u00f4ng l\u1ec7).<br \/>\n&#8211; B\u01b0\u1edbc c\u1ed9t lan can 1.0\u20131.5 m; h\u00e0ng r\u00e0o 1.8\u20132.4 m t\u00f9y gi\u00f3.<br \/>\n&#8211; C\u1ed5ng: ki\u1ec3m tra \u0111\u1ed9 v\u00f5ng \u0111\u1ea7u c\u00e1nh; th\u00eam t\u0103ng c\u1ee9ng quanh \u1ed5 kh\u00f3a v\u00e0 b\u1ea3n l\u1ec1; d\u00f9ng ch\u1eb7n gi\u00f3\/ ch\u1ed1t s\u00e0n gi\u1ea3m t\u1ea3i l\u00ean b\u1ea3n l\u1ec1.<\/p>\n<h2 id=\"toc-7-bao-tri-ve-sinh\">B\u1ea3o tr\u00ec \u2013 v\u1ec7 sinh<\/h2>\n<p>&#8211; Chu k\u1ef3: 1\u20133 th\u00e1ng\/l\u1ea7n trong \u0111\u00f4 th\u1ecb; 2\u20134 tu\u1ea7n\/l\u1ea7n \u1edf ven bi\u1ec3n\/khu c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; D\u00f9ng n\u01b0\u1edbc s\u1ea1ch + x\u00e0 ph\u00f2ng trung t\u00ednh\/ ch\u1ea5t t\u1ea9y inox chuy\u00ean d\u1ee5ng; kh\u00f4ng d\u00f9ng h\u00f3a ch\u1ea5t ch\u1ee9a chloride m\u1ea1nh ho\u1eb7c th\u00e9p v\u1ee5n ch\u00e0 s\u00e1t.<br \/>\n&#8211; R\u1eeda s\u1ea1ch b\u1ee5i mu\u1ed1i ven bi\u1ec3n; ki\u1ec3m tra v\u00e0 si\u1ebft l\u1ea1i bu l\u00f4ng m\u1ed7i 6\u201312 th\u00e1ng.<\/p>\n<h2 id=\"toc-8-loi-thuong-gap-va-cach-tranh\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; D\u00f9ng 201 cho c\u00f4ng tr\u00ecnh ven bi\u1ec3n \u2192 r\u1ec9 n\u00e2u s\u1edbm: chuy\u1ec3n sang 316, t\u0103ng b\u1ea3o tr\u00ec.<br \/>\n&#8211; Th\u00e0nh m\u1ecfng qu\u00e1 (\u22640.8 mm) cho tay v\u1ecbn\/c\u1ed5ng \u2192 rung, v\u00f5ng, n\u1ee9t m\u1ed1i h\u00e0n: t\u0103ng l\u00ean 1.2\u20132.0 mm theo v\u1ecb tr\u00ed ch\u1ecbu l\u1ef1c.<br \/>\n&#8211; Kh\u00f4ng passivate sau h\u00e0n \u2192 \u1ed1 v\u00e0ng, r\u1ec9 \u1edf m\u1ed1i h\u00e0n: b\u1eaft bu\u1ed9c t\u1ea9y\/passivation.<br \/>\n&#8211; Bu l\u00f4ng th\u00e9p \u0111en\/ m\u1ea1 k\u1ebdm l\u1eabn v\u1edbi inox \u2192 r\u1ec9 \u0111i\u1ec7n h\u00f3a: d\u00f9ng A2\/A4 \u0111\u1ed3ng b\u1ed9.<br \/>\n&#8211; Kh\u00f4ng b\u1ecbt \u0111\u1ea7u, kh\u00f4ng tho\u00e1t n\u01b0\u1edbc \u2192 \u0111\u1ecdng n\u01b0\u1edbc g\u00e2y \u1ed1: b\u1ecbt n\u1eafp + l\u1ed7 tho\u00e1t k\u00edn \u0111\u00e1o.<\/p>\n<h2 id=\"toc-9-toi-uu-chi-phi-bao-gia\">T\u1ed1i \u01b0u chi ph\u00ed \u2013 b\u00e1o gi\u00e1<\/h2>\n<p>&#8211; 60\u201370% chi ph\u00ed n\u1eb1m \u1edf v\u1eadt li\u1ec7u. Ch\u1ecdn \u0111\u00fang m\u00e1c theo m\u00f4i tr\u01b0\u1eddng gi\u00fap v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh th\u1ea5p nh\u1ea5t (LCC).<br \/>\n&#8211; T\u1eadp trung \u0111\u1ed9 d\u00e0y cho v\u1ecb tr\u00ed ch\u1ecbu l\u1ef1c (c\u1ed9t, khung ch\u00ednh), c\u00f3 th\u1ec3 gi\u1ea3m nh\u1eb9 \u1edf nan trang tr\u00ed \u0111\u1ec3 t\u1ed1i \u01b0u kh\u1ed1i l\u01b0\u1ee3ng.<br \/>\n&#8211; Mua theo ti\u00eau chu\u1ea9n ASTM A554, y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 xu\u1ea5t x\u01b0\u1edfng, ki\u1ec3m tra PMI ng\u1eabu nhi\u00ean gi\u00fap tr\u00e1nh \u201cm\u00e1c gi\u1ea3\u201d.<\/p>\n<h2 id=\"toc-10-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; ASTM A554 \u2013 Standard Specification for Welded Stainless Steel Mechanical Tubing (astm.org)<br \/>\n&#8211; Outokumpu Technical Datasheets: Core 304\/4301, Core 316\/4401 \u2013 c\u01a1 t\u00ednh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n (outokumpu.com)<br \/>\n&#8211; ASSDA (Australian Stainless Steel Development Association): Grade Selection for Coastal Applications (assda.asn.au)<br \/>\n&#8211; Nickel Institute: Guidelines for Corrosion Resistance of Stainless Steels (nickelinstitute.org)<br \/>\n&#8211; EN 1991-1-1\/IBC: T\u1ea3i lan can (line load 0.5\u20131.0 kN\/m t\u00f9y c\u00f4ng n\u0103ng); ASCE 7\/EN 1991-1-4: nguy\u00ean l\u00fd \u00e1p l\u1ef1c gi\u00f3 q \u2248 0.5\u03c1V\u00b2 (d\u1ea1ng \u0111\u01a1n gi\u1ea3n q \u2248 0.613V\u00b2 trong SI)<\/p>\n<h2 id=\"toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Ch\u1ecdn m\u00e1c \u0111\u00fang m\u00f4i tr\u01b0\u1eddng: 304 cho \u0111\u00f4 th\u1ecb, 316 cho ven bi\u1ec3n\/h\u00f3a ch\u1ea5t, 201 cho trong nh\u00e0\/\u00edt \u0103n m\u00f2n.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y \u201c\u0111\u1ee7\u201d: tay v\u1ecbn 1.2\u20131.5 mm, c\u1ed9t 1.5\u20132.0 mm, khung c\u1ed5ng 2.0\u20132.5 mm; b\u01b0\u1edbc c\u1ed9t lan can 1.0\u20131.5 m; h\u00e0ng r\u00e0o 1.8\u20132.4 m.<br \/>\n&#8211; T\u00ednh nhanh theo t\u1ea3i chu\u1ea9n cho th\u1ea5y c\u1ea5u h\u00ecnh 40\u00d740\u00d71.2 (tay v\u1ecbn) + 60\u00d760\u00d72.0 (c\u1ed9t) b\u1eb1ng 304 \u0111\u00e1p \u1ee9ng lan can d\u00e2n d\u1ee5ng; c\u1ed5ng\/h\u00e0ng r\u00e0o c\u1ea7n ki\u1ec3m gi\u00f3 v\u00e0 gia c\u01b0\u1eddng b\u1ea3n l\u1ec1 \u2013 b\u1ea3n m\u00e3.<br \/>\n&#8211; Thi c\u00f4ng chu\u1ea9n: h\u00e0n TIG\/MIG v\u1edbi d\u00e2y \u0111\u00fang m\u00e1c, passivation sau h\u00e0n, ph\u1ee5 ki\u1ec7n A2\/A4 \u0111\u1ed3ng b\u1ed9, b\u1ecbt \u0111\u1ea7u v\u00e0 tho\u00e1t n\u01b0\u1edbc.<\/p>\n<p>C\u1ea7n h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1i \u01b0u cho c\u00f4ng tr\u00ecnh c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u00e0 gi\u00e1 t\u1ed1t nh\u1ea5t.<br \/>\nHotline: 0343.417.281<br \/>\nEmail: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn ch\u1ecdn inox h\u1ed9p l\u00e0m c\u1ed5ng, h\u00e0ng r\u00e0o, lan can ch\u1ecbu l\u1ef1c: 201\/304\/316, k\u00edch th\u01b0\u1edbc\u2013\u0111\u1ed9 d\u00e0y, t\u00ednh t\u1ea3i gi\u00f3 v\u00e0 lan can, ti\u00eau chu\u1ea9n ASTM A554, m\u1eb9o thi c\u00f4ng.<\/p>\n","protected":false},"author":7,"featured_media":1062,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1676","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1676"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1676\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1062"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}