Hlau yog ib hom hlau uas peb siv tam sim no. Vim tias nws lub zog siab, lub teeb ceeb thawj, zoo tag nrho nruj thiab muaj zog deformation muaj peev xwm, nws tau siv ntev los ua lub tsev loj, loj-siab thiab super hnyav tsev. Ntxiv mus, nws cov cuab yeej cov khoom yog feem ntau nyob rau hauv txoj kab nrog cov kev xav ntawm kev siv dav hlau kho tshuab. Cov khoom muaj plasticity muaj zog, zoo toughness thiab loj deformation, Nws muaj peev xwm dais lub zog load zoo, kev tsim kho lub sijhawm yog luv, thiab nws cov industrialization degree siab, thiab nws tuaj yeem nqa ntawm cov khoom lag luam tshwj xeeb nrog qib siab mechanization.
Tus qauv hlau tsim nrog cov khoom siv steel, uas yog ib qho ntawm qhov tseem ceeb ntawm lub tsev qauv. Nws cov qauv yog tsuas yog tsim ntawm cov nqaj hlau, steel kab, steel trusses thiab lwm cov khoom siv ua ntawm ntu hlau thiab steel daim hlau. Cov feem thiab qhov chaw feem ntau txuas los ntawm welds, bolts lossis rivets. Vim tias nws lub teeb hnyav thiab kev tsim kho yooj yim, nws yog dav siv hauv cov tsev loj, chaw ntau pob, tsev siab siab thiab lwm cov teb.
