Hlau hnyav dua li cov khoom siv hauv tsev xws li pob zeb, tab sis nws lub zog yog ntau dua. Piv txwv li, nyob rau hauv tib lub load tej yam kev mob, qhov hnyav ntawm lub ru tsev steel truss tsuas yog 1/4-1/3 ntawm tib lub sij hawm ntawm lub ru tsev truss, thiab yog hais tias lub nyias-walled steel ru tsev truss yog sib dua, tsuas yog 1/ 10. Yog li ntawd, cov qauv steel tuaj yeem tiv taus ntau dua thiab nthuav dav dav dua li cov pob zeb muaj zog.Cov nyhuv txuag hluav taws xob yog qhov zoo. Cov phab ntsa yog ua los ntawm lub teeb yuag, txuag hluav taws xob thiab cov qauv C-shaped steel, square steel, thiab sandwich panels. Lawv muaj kev ua haujlwm zoo thermal rwb thaiv tsev thiab zoo av qeeg tsis kam.