Nangona zombini "C" - imilo, iinkcukacha zabo ezinqamlezayo kunye namandla okwakhiwa ahluke kakhulu, achaphazela ngokuthe ngqo umthwalo wabo - ukuthwala amandla kunye nemida yokusetyenziswa.

Icandelo lomnqamlezo weC Channel nguishushu - rolled integral structure. Iwebhu yayo (indawo ethe nkqo ye "C") ingqindilili (ngokuqhelekileyo i-6mm - 16mm), kunye neeflanges (amacala amabini anqamlekileyo) zibanzi kwaye zinethambeka elithile (ukuququzelela ukutshisa - ukujikeleza). Olu yilo lwenza ukuba umnqamlezo ube nenkcaso eyomeleleyo yokugoba kunye nokuqina kwe-torsional. Ngokomzekelo, i-Channel ye-10 # C (enobude be-100mm) inobunzima bewebhu be-5.3mm kunye nobubanzi be-flange ye-48mm, enokuthi ithwale ngokulula ubunzima bemigangatho okanye iindonga kwisakhiwo esikhulu.

I-C Purlin, kwelinye icala, yenziwe ngokugoba okubandayo kweepleyiti zentsimbi ezibhityileyo. Umnqamlezo wayo - icandelo lingaphezulu "lincinci": ubukhulu bewebhu bu-1.5mm - 4mm kuphela, kwaye iiflegi zincinci kwaye zihlala zineefolthi ezincinci (ezibizwa ngokuba "iimbambo zokuqinisa") emaphethelweni. Ezi mbambo zokuqinisa zenzelwe ukuphucula ukuzinza kwendawo yeeflange ezincinci kunye nokukhusela i-deformation phantsi kwemithwalo encinci. Nangona kunjalo, ngenxa yezinto ezincinci, ukuxhathisa kwe-torsional yeC Purlin kubuthathaka. Ngokomzekelo, i-C160 × 60 × 20 × 2.5 C Purlin (ubude × ububanzi be-flange × ubude bewebhu × ubukhulu) inobunzima obupheleleyo malunga ne-5.5kg ngemitha nganye, elula kakhulu kune-10 # C Channel (malunga ne-12.7kg ngemitha).