Lub hauv paus ntsiab lus tseem ceeb ntawm cov qauv steel txhawb nqa cov lus dag hauv kev siv cov qauv tsim qauv tsim kom faib cov khoom siv sib npaug ntawm cov khoom siv ib leeg, yog li ua kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm tag nrho cov kev txhawb nqa. Thawj qhov kev thauj khoom-cov kabmob ntawm cov kev txhawb nqa feem ntau suav nrog txhua kab, kab teeb, thiab kab pheeb ces kaum; los ntawm kev tsim cov duab peb sab lossis duab plaub, cov khoom siv no pab txhawb kev sib kis tau zoo ntawm cov rog thiab txhim kho cov txheej txheem rigidity, ua rau lub cev tiv thaiv sab nraud xws li kev thauj khoom ntsug, kab rov tav cua, thiab kev vibrations.
Nyob rau hauv cov nqe lus ntawm mechanical kev ua tau zoo, steel qauv txhawb nqa lub zog siab thiab zoo heev ductility ntawm steel. Qhov no tso cai rau lub Cheebtsam, thaum raug kev nyuaj siab, tsis tsuas yog dais ntau yam loads tab sis kuj undergo me ntsis deformation kom zoo dissipate kev nyuaj siab concentration. Cov kab dais dais cov thawj ntsug compressive zog, cov kab teeb tiv thaiv lateral dabtsi yog khoov lub sij hawm thiab shear rog, thaum lub diagonal braces pab txhim khu kev ruaj ntseg tag nrho thiab tiv thaiv lateral txav los yog cov txheej txheem overturning. Qhov kev teeb tsa kev siv tshuab ua kom ntseeg tau tias qhov kev txhawb nqa tseem nyob ruaj khov thiab muaj kev nyab xeeb thaum txhawb nqa cables, pipelines, khoom siv, lossis kev teeb tsa txhua yam.
Cov txheej txheem kev tswj hwm cov qauv steel txhawb kuj suav nrog txoj kev sib txuas thiab kev tiv thaiv. Cov khoom sib txawv ntawm qhov kev txhawb nqa yog sib cuam tshuam los ntawm bolts, vuam, lossis cov khoom sib txuas, kom ntseeg tau tias muaj kev sib kis tau zoo thaum tso cai rau kev tshem tawm thiab hloov kho. Tib lub sijhawm, kev tiv thaiv kev tiv thaiv - kev kho corrosion thiab cov txheej tiv thaiv yog siv los txhim kho cov txheej txheem durability nyob rau hauv qhov chaw sab nraum zoov lossis ib puag ncig corrosive. Kev sib koom ua ke ntawm kev xaiv cov khoom tsim nyog, kev sib koom ua ke, thiab cov txheej txheem kev sib txuas ua rau cov qauv steel txhawb kom ua tiav lub sijhawm ntev -, kev ua haujlwm ruaj khov thoob plaws ntau qhov chaw pabcuam.
