ASTM A1085 HSS HOLLOW ntu

HSS/HOLLOW STRUCTURAL SIAB

Qauv: ASTM A1085

SIZES: 20X20--1200X1200 WT: 1.3MM--60MM LENGTH: 1M-24M Raws li cov neeg siv khoom xav tau

A1085 txuas ntxiv kev siv hluav taws xob ntawm HSS los ntawm kev ua kom haum rau cov kev siv dav dav. A1085 muab cov kev ntsuas ntxiv, thiab txhim kho kev ua tau zoo ntawm HSS cov tswv cuab los ntawm kev ua siab ntev dua thiab ntxiv cov khoom vaj khoom tsev nyob rau hauv qhov chaw ntawm tsuas yog muaj qhov tsawg kawg nkaus lossis siab tshaj qhov yuav tsum tau muaj. Cov chaw uas siv cov khoom no suav nrog, tab sis tsis txwv rau, "lub tsev, txuas hniav, yees, cranes, kos npe rau kev txhawb nqa thiab ncej, tawm ntawm- ntug dej thiab drilling platforms, yob- dhau cov qauv tiv thaiv, cov khoom tiv thaiv ntog, thiab kev lom zem caij tsheb" (ASTM 2015).

Hom haujlwm twg yog ASTM A1085 haum rau?
Kev siv seismic
ASTM A1085 muaj qhov tsawg kawg nkaus tsim tawm los ntawm 50 ksi. A1085 kuj muaj qhov siab tshaj plaws
yield kev nyuaj siab yuav tsum tau ntawm 70 ksi. Tsis muaj lwm yam tshwj xeeb cation muaj qhov siab tshaj plaws tawm los
txwv. Muaj qhov txwv no ntawm qhov siab tshaj plaws yield stress ua rau lub zog xav tau ntawm
cov ntaub ntawv ntau kwv yees. Ry, raws li tau hais tseg hauv AISC Seismic Provisions (AISC 341),
yuav qis dua rau A1085 dua A500. Qhov no txhais tau tias kev sib txuas tsim hauv thaj chaw seismic tuaj yeem ua tau
raug nqi ntau dua -e ective thaum siv AISC seismic tsim kev cai.
Kev siv choj
Lub tsheb thiab cov neeg taug kev txuas hniav yog tswj hwm los ntawm AASHTO tsim cov cai, uas
xa mus rau ASTM A709 steel tshwj xeeb cation uas suav nrog Charpy V-qhov yuav tsum tau muaj.
Tus qauv A500 rau HSS tsis muaj Charpy V-qhov yuav tsum tau muaj, yog li txhua tus choj
Cov qauv tsim uas hais txog kev siv ASTM A500 xav tau kom muaj Charpy V ntxiv -notch
kuaj tau ua. Tag nrho cov khoom siv ASTM A1085 tam sim no los ntawm tus qauv nrog Charpy V-notch
Qhov yuav tsum tau ua kom tau raws li AASHTO cov qauv rau kev puas tsuaj tseem ceeb hauv Zone 2.
Kev tsim hluav taws xob
Qhov nruj dua qhov ntev ntawm ASTM A1085 yog qhov zoo tagnrho rau cov haujlwm uas xav tau
nruj tsim kam rau ua. Qhov no tuaj yeem suav nrog cov chaw tsim hluav taws xob nuclear, tsim hluav taws xob zoo sib xws
daim ntawv thov lossis lwm qhov project uas cov qauv tsim muaj tseeb dua tuaj yeem nyob hauv qhov chaw.