Txheem specifications rauguardrail boltssib txawv raws lub teb chaws thiab cheeb tsam. Cov hauv qab no yog qee cov qauv guardrail ntsia liaj qhov rooj rau kev siv hauv kev xaiv:
1. American Standard: Nyob rau hauv lub tebchaws United States, guardrail bolts feem ntau ua raws li ASTM F1554 tus qauv. Tsim los ntawm American Society for Testing and Materials (ASTM), tus qauv no siv raucarbon steel guardrail bolts(xws li guardrail- tshwj xeeb thauj tog rau nkoj bolts) thiab suav nrog peb qib zog: Qib 36, Qib 55, thiab Qib 105, uas sib haum rau qhov sib txawv ntawm lub zog thiab tensile zog yuav tsum tau. Ntawm lawv, lub zog tawm los ntawm Qib 36 tsis tsawg dua 36 ksi, Qib 55 tsis tsawg dua 55 ksi, thiab Qib 105 tsis tsawg dua 105 ksi, uas yog tsim rau guardrail scenarios nrog txawv loads.
2. European Standard: Hauv Tebchaws Europe, guardrail bolts feem ntau ua raws li EN 15048 tus qauv. Tsim los ntawm European Committee for Standardization (CEN), tus qauv no siv rau bolted kev twb kev txuas Cheebtsam rau cov uas tsis yog -prestressed qauv (xws li guardrail kev twb kev txuas) thiab muab faib ua ob ntu: EN 15048-1 (Cov Kev Xav Tau Tshwj Xeeb) thiab EN 15048-2 (Kev Siv Cov Kev Pab Cuam Tshuam 8 asuchde), uas yuav tsum tau muaj grades. Cov qib siab zog (xws li Qib 10.9) ntawm guardrail bolts feem, thiab qhia meej txog cov kev cai sib xws rau bolts, txiv ntseej thiab ntxhua khaub ncaws.
3. International Standard: ISO 7379 yog ib kauj ruam bolt qauv tsim los ntawm International Organization for Standardization (ISO), tsis yog ib tug tshwj xeeb qauv rau guardrail bolts. Nws cov tub ntxhais qhia txog qhov ntev, cov khoom siv thiab kev ua haujlwm ntawm cov kauj ruam bolts, uas tuaj yeem siv rau kev sib txuas ntawm cov guardrails thiab muaj feem xyuam rau cov kev xav tau sib xws thoob ntiaj teb.
Nws yuav tsum raug sau tseg tias ntau lub teb chaws thiab cheeb tsam yuav muaj lawv tus kheej cov qauv kev lag luam lossis cov phiaj xwm tshwj xeeb, uas yuav qhia ntxiv txog qhov ntev, cov ntaub ntawv thiab kev siv cov kev cai ntawm guardrail bolts los xyuas kom meej kev hloov mus rau hauv zos engineering xav tau.
Thaum xaiv guardrail bolts, nws raug nquahu kom nruj me ntsis saib cov qauv thiab cov kev qhia tshwj xeeb kom ntseeg tau tias cov bolts xaiv tau raws li qhov yuav tsum tau ua ntawm cov ntawv thov tshwj xeeb ntawm cov khoom, qhov ntev thiab kev ua tau zoo, txhawm rau ua kom muaj kev nyab xeeb thiab ruaj khov ntawm kev sib txuas guardrail.
Cov hauv qab no yog cov ntaub ntawv ntxiv txog guardrail bolt qauv:
1. Australian Standard: Hauv Australia, cov guardrail bolts feem ntau ua raws li tus qauv AS/NZS 1252. Ua ke tsim los ntawm Australian thiab New Zealand Standards Organization, tus qauv no siv rausiab -lub zog structural bolts(xws li guardrail bolts), npog ntau hom bolts, qhia meej txog cov kev xav tau ntawm kev ua haujlwm rau cov qib zog xws li Qib 8.8 thiab Qib 10.9, thiab yog cov qauv siv tau rau cov haujlwm hauv zos guardrail.
2. British Standard: Nyob rau hauv lub tebchaws United Kingdom, guardrail bolts feem ntau ua raws li BS EN 15048 tus qauv. Tsim los ntawm British Standards Institution (BSI), tus qauv no yog ib qho kev ua haujlwm hauv cheeb tsam ntawm European EN 15048 tus qauv hauv tebchaws United Kingdom, siv rau bolted kev twb kev txuas rau cov tsis yog -cov qauv prestressed (xws li guardrails), yog tag nrho sib haum mus rau thiab ua raws li European EN 15048 cov qauv kev sib tw ntawm kev sib tw bolted, thiab cov qauv kev sib tw ntawm kev sib tw.
3. Canadian Standard: Hauv Canada, guardrail bolts feem ntau xa mus rau CSA S16 tus qauv (Steel Structure Design Standard) thiab yuav tsum tau ua ke nrog CSA G164 (Dedicated Standard for Guardrail Fasteners). Ntawm lawv, CSA S16 yog tsim los ntawm Canadian Standards Association (CSA), feem ntau yog siv rau steel qauv tsim, nrog rau qhov ntev, cov ntaub ntawv thiab kev ua tau zoo ntawm bolts rau steel qauv (xws li guardrail bolts), thaum CSA G164 ntxiv qhia meej cov kev cai tshwj xeeb xws li corrosion kuj thiab lub zog rau guardrail- tshwj xeeb fasteners
Ntxiv rau cov qauv ntawm cov saum toj no - lub teb chaws thiab cheeb tsam tau hais, lwm lub teb chaws thiab cheeb tsam kuj tseem muaj lawv tus kheej guardrail bolt qauv thiab specifications. Yog li ntawd, thaum xaiv guardrail bolts, qhov tseem ceeb yuav tsum tau muab rau cov qauv hauv zos thiab cov lus qhia tshwj xeeb kom ntseeg tau tias cov khoom siv thiab cov ntsiab lus raug xaiv tau ua tiav raws li qhov xav tau tiag tiag engineering.
Yog tias koj muaj lus nug tshwj xeeb txog cov qauv guardrail ntsia liaj qhov rooj hauv ib lub tebchaws / cheeb tsam, thov muab cov ncauj lus kom ntxaws rau kev pab ntxiv.
