Kev tu thiab tu cov qauv steel

1. Tsis tu ncua xeb thiab tiv thaiv corrosion
Feem ntau, cov qauv steel yog 5O-70 xyoo hauv kev tsim thiab siv sijhawm.Thaum lub sij hawm siv cov qauv steel, qhov kev pheej hmoo ntawm kev puas tsuaj vim super load yog me me.Feem ntau steel qauv kev puas tsuaj yog tshwm sim los ntawm kev txo cov txheej txheem mechanics thiab lub cev muaj zog los ntawm xeb."Snueling of Steel Structure Design" muaj qee qhov yuav tsum tau ua rau cov qauv steel tiv thaiv corrosion uas tau siv rau ntau tshaj 25 xyoo.Yog li ntawd, nws yuav tsum tau ua kom tau raws li qhov yuav tsum tau ntawm cov qauv steel sab nraum cov qauv hlau.Feem ntau, cov qauv hlau yuav siv sij hawm 3 xyoos los tswj xyuas (kev tu cov plua plav hauv cov qauv hlau, xeb, thiab lwm yam av ua ntej txhuam cov txheej).Ntau yam thiab cov lus qhia tshwj xeeb ntawm cov xim yuav tsum zoo ib yam li cov txheej txheem qub, txwv tsis pub ob txheej txheej yuav tsis sib xws yuav ua rau muaj kev phom sij ntau dua, thiab cov neeg siv yuav tsum tau saib xyuas kom zoo thiab ua raws li kev npaj.
Tiv thaiv steel qauv xeb: Nyob rau hauv lub sij hawm tom qab ntawm kev tu thiab tu, tsis yog-hlau txheej tiv thaiv txoj kev yog feem ntau siv.Nws muaj kev tiv thaiv los ntawm coatings thiab yas nyob rau saum npoo ntawm cov khoom, yog li ntawd nws tsis tiv tauj nrog ib puag ncig corrosive xov xwm kom ua tiav lub hom phiaj ntawm anticorrosion.Txoj kev no muaj cov txiaj ntsig zoo, tus nqi qis, thiab ntau yam txheej txheej.Nws muaj rau ntau yam kev xaiv, muaj zog siv tau, thiab kev txwv ntawm cov duab thiab qhov loj ntawm cov khoom.Cov khoom yog retracted thiab yooj yim rau siv.Koj tuaj yeem muab cov khoom sib xyaw ua kom zoo nkauj.

2. Kev tiv thaiv hluav taws tsis tu ncua
Qhov kub tsis kam ntawm cov hlau tsis zoo, thiab ntau lub zog hloov nrog qhov kub thiab txias.Thaum qhov kub nce mus txog 430-540 ° C, qhov taw tes tawm, lub zog tensile thiab elastic modulus ntawm cov hlau yuav poob qis thiab poob lub peev xwm nqa.Nws yog ib qho tsim nyog yuav tsum siv cov khoom siv refractory los tswj cov qauv steel.Nws tsis tau kho yav tas los nrog cov tshuaj tua hluav taws lossis cov xim tsis muaj hluav taws.Lub peev xwm refractory ntawm lub tsev nyob ntawm qhov hluav taws kub tsis kam ntawm lub tsev tivthaiv.Thaum qhov hluav taws kub tshwm sim, nws lub peev xwm nqa tau yuav tsum muaj peev xwm txuas ntxiv mus rau qee lub sijhawm, kom tib neeg tuaj yeem khiav dim, cawm cov ntaub ntawv thiab tua hluav taws.
Cov kev tiv thaiv hluav taws kub yog: yog li cov hlau tiv thaiv tiv thaiv hluav taws tiv thaiv txheej txheej, cov kev cai tshwj xeeb yog: lub sij hawm refractory ntawm steel beam yog 1.5h, thiab lub sij hawm refractory ntawm steel kem yog 2.5h, uas ua rau nws ua tau raws li qhov yuav tsum tau muaj. ntawm architectural specifications.

3. Kev saib xyuas thiab kev saib xyuas tsis tu ncua
Kev puas tsuaj ntawm cov qauv hlau xeb rau cov khoom siv tsis yog tsuas yog tshwm sim raws li qhov thinning ntawm cov khoom siv tau zoo, tab sis kuj yog "qhov khawb" tsim los ntawm cov khoom siv nto.Tus qub txo qhov kev thauj khoom ntawm cov khoom tivthaiv, uas ua rau tag nrho cov kabmob muaj peev xwm ntawm cov qauv steel kom txo qis, thiab cov qauv ntawm nyias-walled steel thiab lub teeb steel yog qhov tshwj xeeb.Qhov kawg ua rau "kev ntxhov siab concentration" tshwm sim ntawm steel qauv.Thaum cov qauv steel tuaj yeem tshwm sim, cov qauv hlau yuav tshwm sim tam sim ntawd.Tsis muaj cov cim deformation thaum qhov tshwm sim no tshwm sim, thiab nws tsis yooj yim los kuaj xyuas thiab tiv thaiv ua ntej.Txog rau qhov kawg no, kev ntxhov siab, deformation thiab tawg kev saib xyuas ntawm cov qauv steel thiab cov khoom tseem ceeb yog qhov tseem ceeb heev.
Kev saib xyuas kev deformation: Yog tias cov qauv steel ntau dhau deformation thaum lub sijhawm siv, nws qhia tau hais tias lub peev xwm nqa lossis kev ruaj khov ntawm cov qauv hlau tsis tuaj yeem ua tau raws li qhov xav tau ntawm kev siv.Nyob rau lub sijhawm no, tus tswv yuav tsum tau txuas txaus los npaj cov neeg muaj feem cuam tshuam hauv kev lag luam los soj ntsuam qhov ua rau deformation.Txoj cai tswjfwm tau npaj thiab ua tiav tam sim ntawd txhawm rau tiv thaiv kev puas tsuaj ntau dua rau cov qauv steel engineering.

4. Kev kuaj xyuas tsis tu ncua thiab saib xyuas lwm yam kab mob
Thaum ua haujlwm txhua hnub kev tswj hwm thiab kev saib xyuas ntawm steel qauv engineering, ntxiv rau kev ua tib zoo saib xyuas cov kab mob xeb, koj yuav tsum tau them sai sai rau cov hauv qab no:
(1) Seb qhov kev sib txuas ntawm cov welds, bolts, rivets, thiab lwm yam tshwm sim ntawm kev sib txuas ntawm cov kab nrib pleb, loosening, thiab tawg xws li tawg.
(2) Seb cov khoom xws li txhua tus ncej, lub plab, lub rooj sib txuas, thiab lwm yam. muaj qhov deformation hauv zos ntau dhau thiab seb puas muaj kev puas tsuaj.
(3) Txawm hais tias tag nrho cov qauv deformation yog txawv txav thiab seb puas muaj ib qho kev deformation ntau yam.
Kev tswj xyuas txhua hnub thiab kev saib xyuas: txhawm rau txhawm rau tshawb pom cov kab mob uas tau hais tseg saum toj no thiab cov xwm txheej txawv txav thiab zam kom tsis txhob muaj qhov tshwm sim loj, tus tswv yuav tsum tau ua ib qho kev soj ntsuam ntawm cov qauv hlau tsis tu ncua.Thaum tuav nws txoj kev loj hlob thiab kev hloov pauv, qhov ua rau ntawm kev tsim cov kab mob thiab cov xwm txheej txawv txav yuav tsum pom.Yog tias tsim nyog, los ntawm qhov tseeb theoretical tsom xam, nws tau txais los ntawm kev cuam tshuam ntawm lub zog, nruj, thiab ruaj khov ntawm cov qauv steel.