Dab tsi yog Steel Box Kem?
Lub thawv steel kem yog kaw cov duab plaub lossis square hollow cov tswv cuab, feem ntau ua los ntawm vuam plaub daim hlau ua ke. Cov seem kaw muab qhov sib piv sib piv ntawm ob lub ntsiab axes thiab siab torsional tsis kam, uas qhib seem xws li I lossis H profiles tsis tuaj yeem sib phim yam tsis ntxiv cov khoom. Cov kab ke hauv lub thawv yog li kev xaiv tus qauv rau kev thauj khoom hnyav thiab tom qab thauj cov tswv cuab hauv cov tsev lag luam.
Tej Cheebtsam
Perimeter daim hlau tsim cov seem kaw, qhov loj me rau axial thiab dabtsi yog khoov xav tau ntawm tus tsim.
Internal diaphragms los yog stiffeners ntawm load qhia cov ntsiab lus, uas tiv thaiv lub zos distortion ntawm lub hollow phab ntsa thiab faib concentrated loads.
Lub hauv paus phaj thiab lub hau npog sab saum toj, uas hloov cov khoom sib npaug mus rau lub hauv paus pob zeb thiab mus rau cov kab hluav taws xob superstructure.
Kev xaiv qhob sau ntawm lub hollow core, teev qhov twg ntxiv compression muaj peev xwm, hluav taws kub tsis kam los yog cuam tshuam yuav tsum tau.
Vim li cas Box Columns Suit Industrial Buildings
Lub zog ntawm biaxial thiab nruj: cov seem kaw tau zoo ib yam li ob lub axes, uas haum rau cov kab uas thauj los ntawm ntau qhov kev qhia.
Torsional tsis kam: eccentric loads los ntawm crane runways thiab brackets tsim torsion, thiab kaw cell resists nws yam tsis muaj lwm yam bracing.
Buckling stability: lub kaw perimeter txhim kho kev tiv thaiv rau hauv zos buckling piv nrog qhib seem ntawm qhov hnyav zoo sib xws.
Kev sib txuas yooj yim: lub ntsej muag sab nrauv ua kom yooj yim rau kev txuas ntawm crane girders, bracing thiab lwm yam steelwork.
Daim ntawv thov hauv Industrial Construction
Heavy industrial nroj tsuag xws li metallurgy thiab hnyav machinery rhiav, qhov twg lub thawv kem ua raws li lub ntsiab ncej.
Ntev -span warehouses thiab logistics centres, qhov twg txhua kab txhawb nqa loj -span ru tsev qauv nrog cov kab dav dav.
Ntau-cov tsev muaj vaj tse thiab lub zog sab nraud- tawm tsam cov tub ntxhais, qhov twg biaxial txhav thiab ductility yuav tsum tau.
Txhawb cov pej thuam thiab cov yeeb nkab-rack thav duab rau cov chaw tshuaj lom neeg thiab metallurgical, qhov twg cov tub ntxhais hollow tuaj yeem siv rau kev siv hluav taws xob.
Fabrication thiab Quality Control
Cov kab ke hauv lub thawv yog tsim los ntawm CNC phaj txiav, haum- nce thiab vuam ntawm ib puag ncig seams nrog tsis siv neeg submerged arc vuam (SAW). Internal diaphragms yog welded nyob rau hauv txoj hauj lwm ua ntej qhov kawg kaw seam. Welds raug tshuaj xyuas los ntawm kev tshuaj xyuas qhov muag thiab tsis yog- kev kuaj kev puas tsuaj, feem ntau yog kuaj ultrasonic (UT) nrog kev ntsuas qhov sib nqus (MT) ntawm cov ntsiab lus saum npoo, ntawm qhov piv ntawm qhov project specification. Weld zoo raug lees txais los ntawm EN ISO 5817 lossis cov cai siv tau, thiab ua raws li EN 1090-2 qhov xav tau.
Rau kev tiv thaiv corrosion, qhov chaw tawg yog ntxuav rau Sa 2.5 raws li ISO 8501-1 thiab coated nrog cov tshuab tsim los rau ISO 12944, los yog kub-dip galvanized rau ISO 1461 qhov twg ib puag ncig xav tau.
Xaiv lub Box Kem
Txhais cov txheej txheem kev cai: tsim loads, kem qhov siab, ncua, thiab ib puag ncig tej yam kev mob. Cov no txiav txim siab qhov loj me, phab ntsa thickness thiab qib.
Xaiv cov qib steel raws li qhov project code. Cov kev xaiv muaj xws li Q235 thiab Q355 (GB/T 700 thiab GB/T 1591), S235 thiab S355 (EN 10025-2), thiab A572 Gr. 50 (ASTM).
Tshawb xyuas kev tsim khoom zoo: qhov ntev ntev, kev tsim nyog ntawm cov txheej txheem vuam, NDT kev pab them nqi thiab kev ncaj ntawm cov tswv cuab welded.
Xaiv qhov chaw tiv thaiv raws li qhov chaw pabcuam, los ntawm cov txheej txheem pleev xim rau kev pabcuam sab hauv tsev mus rau galvanizing lossis hnyav -cov dej num txheej rau sab nraum zoov thiab corrosive.
Cov lus nug nquag
Vim li cas thiaj siv cov kab kem hloov cov qauv H-beams?Qhib ntu xws li I lossis H profiles muaj qhov tsis muaj zog axis thiab tuaj yeem sib tw hauv qhov hnyav eccentric loads. Cov kab kem muab kev sib luag, lub zog tsis sib xws hauv txhua qhov kev qhia thiab tiv thaiv torsional thiab lateral zog los ntawm cua, seismic action thiab crane ua haujlwm zoo dua.
Cov kab ke hauv lub thawv puas yog khoom lossis hollow?Lawv feem ntau yog hollow, uas ua rau cov tswv cuab sib zog thaum tswj kev nruj. Hauv kev thov cov ntawv thov lawv tuaj yeem ua tiav nrog cov pob zeb kom muaj zog compression, hluav taws kub thiab kev cuam tshuam.
Thaum twg yuav tsum tau tsim- cov kab ke hauv lub thawv yuav raug siv los ntawm cov qauv hollow seem?Rolled hollow structural seem (HSS) muaj txiaj ntsig zoo rau lub teeb thiab lub luag haujlwm nruab nrab. Thaum cov khoom thauj ntau tshaj qhov muaj peev xwm ntawm tus qauv, lossis thaum qhov kev cai qhov ntev, daim hlau tuab lossis cov duab geometries tshwj xeeb xav tau, ua tau -cov welded kem kab yog qhov tsim nyog.
Puas yog lub thawv ntawv yuav tsum tau ntim nrog pob zeb?Tsuas yog thaum tus tsim qhia nws. Qhob filling yog siv qhov twg ntxiv compression zog, qhov ntsuas hluav taws kub los yog ntxiv pawg tiv thaiv kev cuam tshuam sab nraud; txwv tsis pub seem seem seem yog txaus.
Cov kab ke hauv lub thawv puas haum rau av qeeg- thaj chaw uas tuaj yeem?Yog lawm, thaum piav qhia raws li txoj cai seismic siv tau. Lawv qhov sib txawv ntawm kev ntxhov siab, kev nruj biaxial thiab kev coj tus cwj pwm ua rau lawv muaj kev xaiv rau cov khoom hnyav hnyav hauv cheeb tsam seismic.
Cov ntaub ntawv twg yog muab rau txhua qhov kev xa khoom?Mill daim ntawv pov thawj, NDT cov ntaub ntawv, cov ntaub ntawv soj ntsuam qhov ntev thiab cov ntaub ntawv vuam yog muab nrog rau txhua pawg, txhawb nqa tag nrho traceability thiab thib peb - tshuaj xyuas thaum xav tau. Xauj peb ntau yam ntawm steel kab thiab kab teeb rau cov tsev lag luam.