{"id":3706,"date":"2026-05-09T14:31:29","date_gmt":"2026-05-09T14:31:29","guid":{"rendered":"https:\/\/productionscrews.com\/thru-bolt\/"},"modified":"2026-05-09T14:31:29","modified_gmt":"2026-05-09T14:31:29","slug":"thru-bolt","status":"publish","type":"post","link":"https:\/\/productionscrews.com\/vi\/thru-bolt\/","title":{"rendered":"Bu l\u00f4ng xuy\u00ean: H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e1c lo\u1ea1i, k\u00edch th\u01b0\u1edbc v\u00e0 c\u00e1ch l\u1eafp \u0111\u1eb7t (2026)"},"content":{"rendered":"

Bu l\u00f4ng xuy\u00ean: H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e1c lo\u1ea1i, k\u00edch th\u01b0\u1edbc v\u00e0 c\u00e1ch l\u1eafp \u0111\u1eb7t (2026)<\/h1>\n

Bu l\u00f4ng xuy\u00ean l\u00e0 m\u1ed9t lo\u1ea1i ch\u1ed1t n\u1ed1i \u0111i xuy\u00ean ho\u00e0n to\u00e0n qua c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u00e0 \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh b\u1eb1ng \u0111ai \u1ed1c \u1edf \u0111\u1ea7u \u0111\u1ed1i di\u1ec7n \u2014 t\u1ea1o ra l\u1ef1c k\u1eb9p ph\u00e2n b\u1ed5 t\u1ea3i tr\u1ecdng l\u00ean c\u1ea3 hai m\u1eb7t c\u1ee7a m\u1ed1i n\u1ed1i.<\/strong><\/p>\n

N\u1ebfu b\u1ea1n t\u1eebng l\u00e0m vi\u1ec7c trong x\u00e2y d\u1ef1ng k\u1ebft c\u1ea5u, b\u1ea3o tr\u00ec xe \u0111\u1ea1p ho\u1eb7c l\u1eafp \u0111\u1eb7t ph\u1ee5 ki\u1ec7n c\u1eeda, b\u1ea1n ch\u1eafc ch\u1eafn \u0111\u00e3 g\u1eb7p bu l\u00f4ng xuy\u00ean \u2014 ngay c\u1ea3 khi b\u1ea1n kh\u00f4ng bi\u1ebft t\u00ean g\u1ecdi c\u1ee7a n\u00f3. Thu\u1eadt ng\u1eef n\u00e0y bao g\u1ed3m m\u1ed9t lo\u1ea1t c\u00e1c lo\u1ea1i ch\u1ed1t n\u1ed1i \u0111\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t b\u1edfi m\u1ed9t nguy\u00ean l\u00fd c\u01a1 h\u1ecdc: bu l\u00f4ng \u0111i xuy\u00ean su\u1ed1t<\/em>, v\u00e0 \u0111ai \u1ed1c th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5 \u1edf m\u1eb7t sau.<\/p>\n

Nghe c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n. S\u1ef1 ph\u1ee9c t\u1ea1p b\u1eaft \u0111\u1ea7u khi b\u1ea1n c\u1ea7n ch\u1ecdn \u0111\u00fang \u0111\u01b0\u1eddng k\u00ednh, c\u1ea5p \u0111\u1ed9, chi\u1ec1u d\u00e0i v\u00e0 l\u1edbp ph\u1ee7 cho m\u1ed9t t\u1ea3i tr\u1ecdng c\u1ee5 th\u1ec3 \u2014 v\u00e0 khi b\u1ea1n c\u1ea7n bi\u1ebft li\u1ec7u bu l\u00f4ng xuy\u00ean c\u00f3 th\u1ef1c s\u1ef1 l\u00e0 ch\u1ed1t n\u1ed1i ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n hay kh\u00f4ng. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd gi\u1ea3i th\u00edch t\u1ea5t c\u1ea3, b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u00e0 k\u1ebft th\u00fac b\u1eb1ng m\u1ed9t khung quy\u1ebft \u0111\u1ecbnh m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng v\u00e0o c\u00f4ng vi\u1ec7c th\u1ef1c t\u1ebf.<\/p>\n

\"bu<\/p>\n

\n

Bu l\u00f4ng xuy\u00ean l\u00e0 g\u00ec?<\/h2>\n

M\u1ed9t bu l\u00f4ng xuy\u00ean \u0111i qua ho\u00e0n to\u00e0n t\u1ea5t c\u1ea3 c\u00e1c v\u1eadt li\u1ec7u trong m\u1ed9t li\u00ean k\u1ebft \u2014 g\u1ed7, th\u00e9p, v\u00e1n khu\u00f4n b\u00ea t\u00f4ng ho\u1eb7c b\u1ea5t k\u1ef3 s\u1ef1 k\u1ebft h\u1ee3p n\u00e0o \u2014 v\u00e0 \u0111\u01b0\u1ee3c si\u1ebft ch\u1eb7t t\u1eeb \u0111\u1ea7u l\u1ed9 ra b\u1eb1ng m\u1ed9t \u0111ai \u1ed1c v\u00e0 th\u01b0\u1eddng l\u00e0 m\u1ed9t ho\u1eb7c nhi\u1ec1u v\u00f2ng \u0111\u1ec7m. \u0110\u00e2y l\u00e0 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh so v\u1edbi bu l\u00f4ng lag ho\u1eb7c v\u00edt neo, n\u01a1i m\u00e0 ren c\u1ee7a ch\u1ed1t<\/a> v\u1eb7n tr\u1ef1c ti\u1ebfp v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n thay v\u00ec \u0111i xuy\u00ean qua n\u00f3.<\/p>\n

L\u1ee3i th\u1ebf c\u01a1 h\u1ecdc l\u00e0 ph\u00e2n b\u1ed5 t\u1ea3i tr\u1ecdng.<\/strong> Khi b\u1ea1n si\u1ebft ch\u1eb7t bu l\u00f4ng xuy\u00ean, l\u1ef1c k\u1eb9p \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 tr\u00ean di\u1ec7n t\u00edch ch\u1ecbu l\u1ef1c c\u1ee7a v\u00f2ng \u0111\u1ec7m \u1edf c\u1ea3 ph\u00eda \u0111\u1ea7u bu l\u00f4ng v\u00e0 ph\u00eda \u0111ai \u1ed1c. Ng\u01b0\u1ee3c l\u1ea1i, bu l\u00f4ng lag t\u1eadp trung to\u00e0n b\u1ed9 l\u1ef1c ch\u1ed1ng r\u00fat v\u00e0o c\u00e1c ren \u0111\u01b0\u1ee3c c\u1ea5y v\u00e0o g\u1ed7 ho\u1eb7c x\u00e2y, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao bu l\u00f4ng xuy\u00ean \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u theo quy chu\u1ea9n trong nhi\u1ec1u m\u1ed1i n\u1ed1i g\u1ed7 k\u1ebft c\u1ea5u.<\/p>\n

Bu l\u00f4ng xuy\u00ean v\u00e0 bu l\u00f4ng xuy\u00ean qua \u2014 C\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t?<\/h3>\n

\u0110\u00fang v\u1eady, ho\u00e0n to\u00e0n gi\u1ed1ng nhau. \u201cBu l\u00f4ng xuy\u00ean\u201d l\u00e0 c\u00e1ch vi\u1ebft t\u1eaft th\u01b0\u1eddng d\u00f9ng trong c\u00e1c danh m\u1ee5c ph\u1ee5 ki\u1ec7n, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1ea3n ph\u1ea9m x\u00e2y d\u1ef1ng (\u0111\u1eb7c bi\u1ec7t l\u00e0 d\u00f2ng ThruLOK c\u1ee7a FastenMaster), v\u00e0 h\u1ea7u h\u1ebft c\u00e1c t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt t\u1ea1i Vi\u1ec7t Nam. \u201cBu l\u00f4ng xuy\u00ean qua\u201d l\u00e0 thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt ch\u00ednh th\u1ee9c b\u1ea1n s\u1ebd th\u1ea5y trong Ti\u00eau chu\u1ea9n bu l\u00f4ng ASTM<\/a> v\u00e0 c\u00e1c quy chu\u1ea9n k\u1ef9 thu\u1eadt k\u1ebft c\u1ea5u. Ch\u00fang \u0111\u1ec1u ch\u1ec9 c\u00f9ng m\u1ed9t kh\u00e1i ni\u1ec7m ch\u1ed1t n\u1ed1i. Trong su\u1ed1t h\u01b0\u1edbng d\u1eabn n\u00e0y, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u1ea3 hai thu\u1eadt ng\u1eef thay th\u1ebf cho nhau \u2014 gi\u1ed1ng nh\u01b0 ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u1eabn l\u00e0m.<\/p>\n

C\u00e1ch bu l\u00f4ng xuy\u00ean ho\u1ea1t \u0111\u1ed9ng (Gi\u1ea3i th\u00edch \u0111\u01b0\u1eddng truy\u1ec1n t\u1ea3i tr\u1ecdng)<\/h3>\n

Khi bu l\u00f4ng xuy\u00ean \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u00e0 si\u1ebft l\u1ef1c \u0111\u00fang c\u00e1ch:<\/p>\n

    \n
  1. L\u1ef1c k\u1eb9p<\/strong> \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi l\u1ef1c c\u0103ng tr\u01b0\u1edbc trong th\u00e2n bu l\u00f4ng \u2014 gi\u1ed1ng nh\u01b0 nguy\u00ean l\u00fd c\u1ee7a b\u1ea5t k\u1ef3 m\u1ed1i n\u1ed1i bu l\u00f4ng n\u00e0o.<\/li>\n
  2. T\u1ea3i tr\u1ecdng c\u1eaft<\/strong> (l\u1ef1c vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c bu l\u00f4ng) \u0111\u01b0\u1ee3c truy\u1ec1n qua ti\u1ebfp x\u00fac gi\u1eefa th\u00e2n bu l\u00f4ng v\u00e0 c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c li\u00ean k\u1ebft.<\/li>\n
  3. T\u1ea3i tr\u1ecdng k\u00e9o<\/strong> (l\u1ef1c k\u00e9o m\u1ed1i n\u1ed1i ra kh\u1ecfi nhau) \u0111\u01b0\u1ee3c ch\u1ed1ng l\u1ea1i b\u1edfi b\u1ed9 l\u1eafp \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m \u1edf ph\u00eda xuy\u00ean qua.<\/li>\n<\/ol>\n

    V\u00f2ng \u0111\u1ec7m kh\u00f4ng ph\u1ea3i l\u00e0 t\u00f9y ch\u1ecdn. N\u1ebfu kh\u00f4ng c\u00f3 v\u00f2ng \u0111\u1ec7m, \u0111\u1ea7u \u0111ai \u1ed1c ho\u1eb7c \u0111\u1ea7u bu l\u00f4ng c\u00f3 th\u1ec3 b\u1ecb k\u00e9o v\u00e0o c\u00e1c v\u1eadt li\u1ec7u m\u1ec1m (\u0111\u1eb7c bi\u1ec7t l\u00e0 g\u1ed7 th\u00f4ng Douglas ho\u1eb7c g\u1ed7 SPF) d\u01b0\u1edbi t\u1ea3i tr\u1ecdng, l\u00e0m gi\u1ea3m di\u1ec7n t\u00edch ch\u1ecbu l\u1ef1c hi\u1ec7u qu\u1ea3 v\u00e0 l\u00e0m y\u1ebfu m\u1ed1i n\u1ed1i. Theo Ti\u00eau chu\u1ea9n Thi\u1ebft k\u1ebf Qu\u1ed1c gia c\u1ee7a H\u1ed9i \u0111\u1ed3ng G\u1ed7 Vi\u1ec7t Nam (NDS)<\/a>, v\u00f2ng \u0111\u1ec7m l\u00e0 b\u1eaft bu\u1ed9c \u1edf c\u1ea3 hai b\u00ean c\u1ee7a m\u1ed1i n\u1ed1i bu l\u00f4ng trong k\u1ebft c\u1ea5u g\u1ed7 tr\u1eeb khi th\u00e0nh ph\u1ea7n k\u1ebft n\u1ed1i l\u00e0 kim lo\u1ea1i.<\/p>\n

    B\u1ea3ng 1 \u2014 Bu l\u00f4ng xuy\u00ean qua so v\u1edbi c\u00e1c lo\u1ea1i ch\u1ed1t t\u01b0\u01a1ng t\u1ef1<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
    Ch\u1ed1t li\u00ean k\u1ebft<\/th>\nC\u00f3 xuy\u00ean qua?<\/th>\nC\u00f3 c\u1ea7n \u0111ai \u1ed1c kh\u00f4ng?<\/th>\nLo\u1ea1i t\u1ea3i tr\u1ecdng ch\u00ednh<\/th>\nV\u1eadt li\u1ec7u n\u1ec1n \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n
    Bu l\u00f4ng xuy\u00ean qua<\/strong><\/td>\nC\u00f3 \u2014 t\u1ea5t c\u1ea3 v\u1eadt li\u1ec7u<\/td>\nC\u00f3<\/td>\nC\u1eaft + k\u00e9o<\/td>\nG\u1ed7, th\u00e9p, v\u00e1n khu\u00f4n b\u00ea t\u00f4ng<\/td>\n<\/tr>\n
    Bu l\u00f4ng xe<\/td>\nC\u00f3 \u2014 t\u1ea5t c\u1ea3 v\u1eadt li\u1ec7u<\/td>\nC\u00f3<\/td>\nTr\u01b0\u1ee3t<\/td>\nG\u1ed7 v\u1edbi g\u1ed7<\/td>\n<\/tr>\n
    Bu l\u00f4ng lag \/ v\u00edt lag<\/td>\nKh\u00f4ng \u2014 ren v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n<\/td>\nNo<\/td>\nR\u00fat ra + c\u1eaft<\/td>\nG\u1ed7, x\u00e2y d\u1ef1ng v\u1edbi \u1ed1ng l\u00f3t<\/td>\n<\/tr>\n
    Bu l\u00f4ng m\u00f3c<\/td>\nM\u1ed9t ph\u1ea7n (\u0111\u00fac s\u1eb5n ho\u1eb7c epoxy)<\/td>\nC\u00f3<\/td>\nK\u00e9o + c\u1eaft<\/td>\nB\u00ea t\u00f4ng, x\u00e2y d\u1ef1ng<\/td>\n<\/tr>\n
    Bu l\u00f4ng m\u00e1y<\/td>\nC\u00f3 \u2014 xuy\u00ean qua kim lo\u1ea1i<\/td>\nC\u00f3<\/td>\nC\u1eaft + k\u00e9o<\/td>\nTh\u00e9p, nh\u00f4m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    C\u00e1c lo\u1ea1i bu l\u00f4ng xuy\u00ean<\/h2>\n

    Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 bu l\u00f4ng xuy\u00ean \u0111\u1ec1u l\u00e0 c\u00f9ng m\u1ed9t lo\u1ea1i ch\u1ed1t ch\u1ec9 kh\u00e1c h\u00ecnh th\u1ee9c \u2014 h\u00ecnh d\u1ea1ng \u0111\u1ea7u, \u0111\u1ed9 \u0103n kh\u1edbp c\u1ee7a ren, th\u00f4ng s\u1ed1 v\u1eadt li\u1ec7u<\/a>, v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 t\u00f9y theo \u1ee9ng d\u1ee5ng.<\/p>\n

    Bu l\u00f4ng xuy\u00ean k\u1ebft c\u1ea5u cho x\u00e2y d\u1ef1ng g\u1ed7<\/h3>\n

    Bu l\u00f4ng xuy\u00ean ph\u1ed5 bi\u1ebfn nh\u1ea5t trong x\u00e2y d\u1ef1ng d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i nh\u1eb9 l\u00e0 bu l\u00f4ng m\u00e1y \u0111\u1ea7u l\u1ee5c gi\u00e1c<\/strong> xuy\u00ean qua c\u00e1c th\u00e0nh vi\u00ean g\u1ed7 v\u1edbi \u0111ai \u1ed1c l\u1ee5c gi\u00e1c ti\u00eau chu\u1ea9n v\u00e0 v\u00f2ng \u0111\u1ec7m tr\u00f2n 3 inch (ho\u1eb7c v\u00f2ng \u0111\u1ec7m vu\u00f4ng 3\u00d73). Ti\u00eau chu\u1ea9n Thi\u1ebft k\u1ebf Qu\u1ed1c gia<\/a> quy \u0111\u1ecbnh k\u1ef9 thu\u1eadt cho c\u00e1c li\u00ean k\u1ebft n\u00e0y: \u0111\u01b0\u1eddng k\u00ednh bu l\u00f4ng, gi\u00e1 tr\u1ecb ch\u1ecbu l\u1ef1c \u0111i\u1ec1u ch\u1ec9nh theo lo\u1ea1i g\u1ed7, kho\u1ea3ng c\u00e1ch \u0111\u1ea7u v\u00e0 m\u00e9p, v\u00e0 \u0111\u1ed9 c\u1eafm t\u1ed1i thi\u1ec3u khi thay th\u1ebf b\u1eb1ng bu l\u00f4ng lag.<\/p>\n

    \u0110\u01b0\u1eddng k\u00ednh ph\u1ed5 bi\u1ebfn trong khung g\u1ed7: \u00bd inch (13 mm), \u215d inch (16 mm), v\u00e0 \u00be inch (19 mm). Bu l\u00f4ng xuy\u00ean \u00bd inch l\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t cho li\u00ean k\u1ebft d\u1ea7m v\u00e0 b\u1ea3n s\u00e0n; lo\u1ea1i \u215d inch v\u00e0 l\u1edbn h\u01a1n xu\u1ea5t hi\u1ec7n \u1edf d\u1ea7m gi\u00e0n, ch\u00e2n c\u1ed9t ch\u1ecbu l\u1ef1c k\u00e9o, v\u00e0 d\u1ea7m LVL ho\u1eb7c PSL nhi\u1ec1u l\u1edbp.<\/p>\n

    FastenMaster ThruLOK<\/em> l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng bu l\u00f4ng xuy\u00ean k\u1ebft c\u1ea5u c\u00f3 th\u01b0\u01a1ng hi\u1ec7u \u0111\u00e1ng ch\u00fa \u00fd: n\u00f3 s\u1eed d\u1ee5ng m\u1eabu ren b\u1ea5t \u0111\u1ed1i x\u1ee9ng \u0111\u01b0\u1ee3c c\u1ea5p b\u1eb1ng s\u00e1ng ch\u1ebf, \u0103n kh\u1edbp v\u1edbi s\u1ee3i g\u1ed7 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 bu l\u00f4ng lag, nh\u01b0ng v\u1edbi \u0111\u1ea7u l\u1ee5c gi\u00e1c \u0111\u1ea7y \u0111\u1ee7 v\u00e0 kh\u00f4ng c\u1ea7n \u1ed1c v\u00edt<\/a> \u0111\u1ea7u ren b\u00e1m v\u00e0o th\u00e0nh vi\u00ean g\u1ed7 ph\u00eda xa. V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, n\u00f3 l\u00e0 lo\u1ea1i lai, nh\u01b0ng \u0111\u01b0\u1ee3c qu\u1ea3ng b\u00e1 v\u00e0 ch\u1ec9 \u0111\u1ecbnh nh\u01b0 m\u1ed9t s\u1ef1 thay th\u1ebf cho bu l\u00f4ng xuy\u00ean trong nhi\u1ec1u quy chu\u1ea9n v\u1ec1 s\u00e0n v\u00e0 khung g\u1ed7.<\/p>\n

    Bu l\u00f4ng xuy\u00ean neo b\u00ea t\u00f4ng<\/h3>\n

    Trong c\u00e1c \u1ee9ng d\u1ee5ng b\u00ea t\u00f4ng v\u00e0 x\u00e2y d\u1ef1ng, \u201cbu l\u00f4ng xuy\u00ean\u201d th\u01b0\u1eddng ch\u1ec9 neo \u1ed1ng l\u00f3t<\/strong> or bu l\u00f4ng n\u00eam xuy\u00ean<\/strong> m\u1edf r\u1ed9ng b\u00ean trong l\u1ed7 khoan s\u1eb5n. Bu l\u00f4ng \u0111i qua v\u1eadt c\u1ed1 \u0111\u1ecbnh v\u00e0o b\u00ea t\u00f4ng, v\u00e0 c\u01a1 ch\u1ebf n\u00eam ho\u1eb7c \u1ed1ng l\u00f3t s\u1ebd kh\u00f3a n\u00f3 khi si\u1ebft \u0111ai \u1ed1c. \u0110\u00e2y l\u00e0 lo\u1ea1i ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi bu l\u00f4ng xuy\u00ean khung g\u1ed7 \u2014 ch\u00fang s\u1eed d\u1ee5ng nguy\u00ean l\u00fd n\u1edf thay v\u00ec k\u1eb9p \u2014 nh\u01b0ng t\u00ean g\u1ecdi v\u1eabn \u0111\u01b0\u1ee3c gi\u1eef.<\/p>\n

    Ch\u00fang t\u00f4i \u0111\u00e3 th\u1ea5y nhi\u1ec1u s\u1ef1 nh\u1ea7m l\u1eabn t\u1ea1i c\u00e1c c\u00f4ng tr\u01b0\u1eddng<\/strong> gi\u1eefa bu l\u00f4ng n\u1edf v\u00e0 bu l\u00f4ng xuy\u00ean qua g\u1ed7. Ch\u00fang tr\u00f4ng gi\u1ed1ng nhau t\u1eeb \u0111\u1ea7u l\u1ee5c gi\u00e1c l\u1ed9 ra ngo\u00e0i. D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft: bu l\u00f4ng n\u1edf b\u00ea t\u00f4ng th\u01b0\u1eddng c\u00f3 ren m\u1ed9t ph\u1ea7n v\u00e0 \u1ed1ng n\u1edf l\u1ed9 ra g\u1ea7n \u0111\u1ea7u; bu l\u00f4ng xuy\u00ean qua g\u1ed7 th\u00ec ren to\u00e0n b\u1ed9 ho\u1eb7c c\u00f3 th\u00e2n tr\u01a1n v\u1edbi ren ch\u1ec9 \u1edf \u0111\u1ea7u g\u1eafn \u0111ai \u1ed1c.<\/p>\n

    Bu l\u00f4ng tr\u1ee5c xuy\u00ean xe \u0111\u1ea1p<\/h3>\n

    M\u1ed9t chi\u1ebfc xe \u0111\u1ea1p tr\u1ee5c xuy\u00ean<\/strong> (c\u00f2n g\u1ecdi l\u00e0 tr\u1ee5c bu l\u00f4ng xuy\u00ean) l\u00e0 m\u1ed9t bu l\u00f4ng r\u1ed7ng \u0111i qua c\u00e0ng xe ho\u1eb7c c\u00e0ng sau v\u00e0 qua moay \u01a1 b\u00e1nh xe, thay th\u1ebf cho ch\u1ed1t th\u00e1o nhanh truy\u1ec1n th\u1ed1ng. \u0110\u01b0\u1eddng k\u00ednh \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t c\u00e0ng xe \u2014 c\u00e1c k\u00edch th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn l\u00e0 12\u00d7100mm (tr\u01b0\u1edbc), 12\u00d7142mm (sau), 15\u00d7100mm (tr\u01b0\u1edbc), v\u00e0 20\u00d7110mm (tr\u01b0\u1edbc cho xe \u0111\u1ea1p \u0111\u1ecba h\u00ecnh\/\u0111ua enduro).<\/p>\n

    \u01afu \u0111i\u1ec3m so v\u1edbi ch\u1ed1t th\u00e1o nhanh: tr\u1ee5c xuy\u00ean lo\u1ea1i b\u1ecf \u0111\u1ed9 u\u1ed1n ngang \u1edf c\u00e0ng xe, gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh khi phanh v\u00e0 lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng b\u00e1nh xe b\u1ecb l\u1ec7ch khi phanh m\u1ea1nh. T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a Shimano<\/a> v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch tr\u1ee5c xuy\u00ean l\u00e0 ngu\u1ed3n tham kh\u1ea3o uy t\u00edn v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c th\u00f4ng s\u1ed1 \u2014 b\u1ea1n th\u01b0\u1eddng kh\u00f4ng th\u1ec3 thay c\u00e0ng xe tr\u1ee5c xuy\u00ean 12mm b\u1eb1ng lo\u1ea1i 15mm m\u00e0 kh\u00f4ng thay moay \u01a1 ho\u1eb7c d\u00f9ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/p>\n

    Bu l\u00f4ng xuy\u00ean cho ph\u1ee5 ki\u1ec7n c\u1eeda<\/h3>\n

    Bu l\u00f4ng xuy\u00ean c\u1eeda l\u00e0 bu l\u00f4ng n\u00f2ng ho\u1eb7c kh\u00f3a n\u00e9m d\u1ecdc<\/strong> \u0111\u01b0\u1ee3c l\u1eafp b\u1eb1ng c\u00e1ch \u0111\u01b0a m\u1ed9t v\u00edt m\u00e1y d\u00e0i xuy\u00ean qua khung c\u1eeda v\u00e0 g\u1eafn v\u00e0o b\u1ed9 nh\u1eadn \u0111\u01b0\u1ee3c l\u1eafp ph\u1eb3ng tr\u00ean m\u1eb7t c\u1eeda. D\u1ea1ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 bu l\u00f4ng c\u1eeda patio l\u1eafp n\u1ed5i<\/strong> \u2014 b\u1ed9 hai ph\u1ea7n g\u1ed3m th\u00e2n bu l\u00f4ng xuy\u00ean qua \u0111\u1ed9 d\u00e0y c\u1eeda v\u00e0 b\u1ed9 gi\u1eef tr\u00ean khung c\u1eeda.<\/p>\n

    Bu l\u00f4ng xuy\u00ean cho kh\u00f3a an ninh l\u00e0 lo\u1ea1i kh\u00e1c: ch\u00fang s\u1eed d\u1ee5ng v\u00edt m\u00e1y d\u00e0i (th\u01b0\u1eddng l\u00e0 M6\u00d780\u2013150mm) xuy\u00ean qua th\u00e2n kh\u00f3a v\u00e0 si\u1ebft v\u00e0o t\u1ea5m gia c\u1ed1 \u1edf m\u1eb7t \u0111\u1ed1i di\u1ec7n c\u1ee7a khung c\u1eeda, ng\u0103n kh\u00f4ng cho kh\u00f3a b\u1ecb c\u1ea1y ra khi c\u00f3 t\u00e1c \u0111\u1ed9ng m\u1ea1nh.<\/p>\n

    \"c\u00e1c<\/p>\n

    B\u1ea3ng 2 \u2014 So s\u00e1nh c\u00e1c lo\u1ea1i bu l\u00f4ng xuy\u00ean<\/strong><\/p>\n\n\n\n\n\n\n\n\n
    Lo\u1ea1i<\/th>\nK\u00edch th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn<\/th>\nV\u1eadt li\u1ec7u<\/th>\n\u1ee8ng d\u1ee5ng ch\u00ednh<\/th>\nT\u1ea3i tr\u1ecdng (th\u00f4ng th\u01b0\u1eddng)<\/th>\n<\/tr>\n<\/thead>\n
    L\u1ee5c gi\u00e1c k\u1ebft c\u1ea5u (g\u1ed7)<\/td>\n\u00bd\u2033\u2013\u00be\u2033 \u00d7 3\u2033\u201312\u2033<\/td>\nASTM A307 \/ SAE C\u1ea5p 5<\/td>\nD\u1ea7m v\u1edbi c\u1ed9t, d\u1ea7m ch\u00ednh, nhi\u1ec1u l\u1edbp<\/td>\n1.200\u20139.500 lbf c\u1eaft (theo NDS)<\/td>\n<\/tr>\n
    T\u1eafc k\u00ea n\u1edf (b\u00ea t\u00f4ng)<\/td>\n\u00bd\u2033\u2013\u00be\u2033 \u00d7 3\u00be\u2033\u201310\u2033<\/td>\nTh\u00e9p cacbon, C\u1ea5p B7<\/td>\nB\u1ea3n \u0111\u1ebf c\u1ed9t, b\u1ea3n \u0111\u1ebf t\u01b0\u1eddng v\u1edbi s\u00e0n<\/td>\n1.800\u20137.200 lbf k\u00e9o<\/td>\n<\/tr>\n
    Tr\u1ee5c xuy\u00ean b\u00e1nh xe \u0111\u1ea1p<\/td>\n12mm \/ 15mm \/ 20mm \u00d7 100\u2013197mm<\/td>\nCrMo ho\u1eb7c nh\u00f4m<\/td>\nGi\u1eef b\u00e1nh xe t\u1ea1i g\u1edd tr\u1ee5c<\/td>\nKh\u00f4ng \u00e1p d\u1ee5ng \u2014 kh\u00f4ng ch\u1ecbu t\u1ea3i k\u1ebft c\u1ea5u<\/td>\n<\/tr>\n
    Bu l\u00f4ng xuy\u00ean c\u1eeda<\/td>\nM6 \/ M8 \u00d7 70\u2013150mm<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c th\u00e9p m\u1ea1 k\u1ebdm<\/td>\nGi\u1eef th\u00e2n kh\u00f3a, ch\u1ed1t n\u00f2ng<\/a><\/td>\n600\u20132.400 lbf r\u00fat<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    B\u1ea3ng k\u00edch th\u01b0\u1edbc bu l\u00f4ng xuy\u00ean v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn<\/h2>\n

    Vi\u1ec7c ch\u1ecdn \u0111\u00fang k\u00edch th\u01b0\u1edbc l\u00e0 n\u01a1i h\u1ea7u h\u1ebft c\u00e1c l\u1ed7i mua s\u1eafm x\u1ea3y ra. Ch\u1ecdn qu\u00e1 l\u1edbn g\u00e2y l\u00e3ng ph\u00ed ti\u1ec1n b\u1ea1c v\u00e0 c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ec3m t\u1eadp trung \u1ee9ng su\u1ea5t l\u00ean b\u1ea1c \u0111\u1ee1 trong g\u1ed7 m\u1ec1m. Ch\u1ecdn qu\u00e1 nh\u1ecf l\u00e0 vi ph\u1ea1m quy chu\u1ea9n trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u v\u00e0 l\u00e0 nguy c\u01a1 th\u1ea5t b\u1ea1i trong b\u00ea t\u00f4ng.<\/p>\n

    K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u d\u00e0i<\/h3>\n

    Cho bu l\u00f4ng xuy\u00ean k\u1ebft c\u1ea5u g\u1ed7<\/strong>, c\u00e1c k\u00edch th\u01b0\u1edbc quy\u1ebft \u0111\u1ecbnh l\u00e0:<\/p>\n