Cov khoom tseem ceeb ntawm cov qauv steel txhawb nqa ncej feem ntau muaj cov kab (cov tswv cuab ntsug). Cov kab no dais lub ntsiab ntsug loads thiab ua haujlwm raws li lub cev pob txha ntawm tag nrho cov qauv kev txhawb nqa. Lawv yuav tsum muaj lub zog siab thiab kev ruaj ntseg zoo los xyuas kom meej tias cov thav duab tseem tsis muaj tilting lossis deformation thaum txhawb nqa cov khoom hnyav, cua loads, lossis lwm yam sab nraud.
Beams (cov tswv cuab kab rov tav) yog siv los txhawb nqa qhov hnyav ntawm cov khoom siv, cov kav dej, cable tais, lossis lwm yam khoom siv ntxiv. Txuas rau txhua kab ntawm bolting lossis vuam, cov kab teeb no sib npaug faib cov khoom thauj mus rau txhua kab thiab lub hauv paus, yog li ua kom muaj kev sib npaug ntawm cov rog thoob plaws tag nrho cov kev txhawb nqa.
Diagonal braces thiab cov khoom sib txuas kuj tseem yog cov ntsiab lus tseem ceeb. Diagonal braces pab txhim kho tag nrho kev ruaj ntseg thiab tsis kam mus rau sab nraud hloov chaw, tiv thaiv tag nrho cov qauv kev txhawb nqa los ntawm kev tig los ntawm kev cuam tshuam ntawm cua loads lossis vibrations. Cov khoom sib txuas-xws li bolts, txiv ntseej, embedded qhov chaw, thiab cov pob qij txha welded- xyuas kom muaj kev sib raug zoo ntawm cov tswv cuab, pab txhawb kev txhim khu kev qha ntawm cov khoom thauj thaum tseem ua kom yooj yim ntawm installation thiab disassembly.
