En 10025-4 s275 h nqaj hlau

En 10025-4 Tshaj tawm cov kev xav tau rau cov qauv kev siv tshuab (xws li cov tshuaj thev naus laus zis (

Cov ntu hla ntawm ib lub nqaj yog "H", muaj ob txoj hlua khi sib txuas thiab lub vev xaib ntsug.

• Lub zog siab thiab lub teeb hnyav:

Tus ntoo khaub lig-seem tsim ntawm H-nqaj ua rau nws muaj ntu siab tshaj qhov tsis zoo ib txwm muaj, uas haum rau cov kabmob hnyav.

• Cov Khoom Siv Zoo Tshaj:

Cov hlau tau teev nyob rau hauv en 10025-2 (xws li S355jr) muaj ib qho txiaj ntsig ntawm {}} MPa mpa, uas tau raws li cov kev xav tau ntawm cov kev xav tau siab.

• Yooj yim kev tsim kho:

Cov flanges yog dav thiab sib zog, uas yooj yim rau kev bolting lossis vuam.

Qauv ua kom nruj ua rau lub sijhawm thiab txhim kho engineering.

• Yig:

Cov khoom siv muaj peev txheej siab thiab txo cov khib nyiab.

Tsawg-kev tswj xyuas kev them nqi sijhawm vim yog corrosion tsis kam ntawm cov hlau (uas tuaj yeem txhim kho los ntawm galvanizing lossis txau).

• Stability:

Cov Symmetrical Hla-ntu ua rau nws ruaj khov nyob rau hauv axial siab thiab lateral force, haum rau seismic tsim

• Lub tsev qauv:

Thav ntawv thiab kab teeb ntawm cov tuam tsev siab (xws li cov vaj tse lag luam thiab muaj nroj tsuag).

Ru tsev trusses thiab kev txhawb nqa pem teb.

• Choj Engineering:

Cov kab loj thiab cov qauv txhawb nqa ntawm kev tsheb nqaj hlau / Highway Txuas hniav (tiv thaiv kev kho xeb txoj kev kho mob corrosion).

• Cov Chaw Muaj:

Cov cuab yeej hnyav nkhaus, crane taug kev ci, roj platform.

• Infrastructure:

Kev Hloov Kho Yees, Kev Txhawb Nqa Qhov Kev Them Nyiaj Txuas, Chaw Nres Nkoj Terminals.

• Cov qauv qauv ib ntus:

Kev tsim kho cov kev txhawb nqa ib ntus, cov tsev ceev ceev (xws li cov tsev ua haujlwm).