Naqshadeynta qaab-dhismeedka birta, alwaaxyada H iyo I-beams waa qaybaha ugu muhiimsan ee qaada. Kala duwanaanshaha qaabka isgoyska, cabbirka iyo sifooyinka farsamada iyo goobta codsiga ee qofka ku jira waa inay si toos ah u saameeyaan xeerarka xulashada injineernimada.
Aragti ahaan, farqiga u dhexeeya I-beams iyo H-beams, qaabka, dhismaha, ee curiyahan xamuulka qaada ee diyaaradda waa flanges is barbar socda, Ibeams kaas oo hoos u dhacaya si ballaca flange-ku uu hoos ugu dhaco marka masaafada u jirto shabakadda.
Marka la eego cabbirka, H-beams waxaa lagu samayn karaa ballaca flange-ka iyo dhumucda shabakadda si loo daboolo baahiyaha kala duwan, halka cabbirka I-beams uu yahay mid isku mid ah.
Marka laga hadlayo waxqabadkaBirta Hwaa ka wanaagsan yahay iska caabinta torsional iyo adkaanta guud iyadoo leh iskutallaabta iskutallaabta siman, bey'adda I ayaa ka fiican iska caabinta leexashada ee culaysyada ku teedsan dhidibka.
Awoodahan waxaa lagu muujiyaa codsiyadooda: TheQaybta Hwaxaa laga heli karaa dabaqyada dhaadheer, buundooyinka, iyo qalabka culus, halka birta I ay si fiican ugu shaqeyso dhismaha birta fudud, qaababka gawaarida, iyo alwaaxyada gaagaaban.
| Cabbirrada Isbarbardhigga | H-beer | I-beam |
| Muuqaalka | Qaab-dhismeedkan "H" ee laba-jibbaaran wuxuu leeyahay flanges is barbar socda, dhumucdiisuna la mid tahay shabakadda, iyo u gudub toosan oo siman oo shabakadda ah. | Qaybta I-ga oo si siman u siman oo leh flanges godadsan oo ka soo jeeda xididka shabakadda ilaa geesaha. |
| Astaamaha Cabbirka | Tilmaamaha dabacsan, sida ballaca flange-ka la hagaajin karo iyo dhumucda shabakadda, iyo wax soo saarka gaarka ah wuxuu daboolayaa cabbirro kala duwan. | Cabbirrada qaabaysan, oo lagu garto dhererka isgoysyada. La hagaajin karo waa xaddidan tahay, iyadoo ay jiraan cabbirro go'an oo isku dherer ah. |
| Sifooyinka Farsamada | Adkaanta torsional-ka oo sareysa, xasillooni guud oo aad u fiican, iyo isticmaalka agabka oo sarreeya ayaa keena awood culays oo sare leh oo loogu talagalay cabbirrada isku-dhafka ah ee isku-dhafka ah. | Waxqabad aad u fiican oo hal dhinac ah (oo ku saabsan dhidibka xooggan), laakiin xasillooni qalloocan iyo mid ka baxsan diyaaradda oo liidata, oo u baahan taageero dhinac ama xoojin. |
| Codsiyada Injineernimada | Ku habboon culaysyo culus, dhererro dhaadheer, iyo culaysyo adag: qaab-dhismeedyo dhaadheer, buundooyin dhaadheer, mashiinno culus, warshado waaweyn, hoollo, iyo waxyaabo kaloo badan. | Culaysyada fudud, wareegyada gaaban, iyo rarista hal dhinac ah: purlins bir ah oo khafiif ah, biraha qaab-dhismeedka, qaab-dhismeedyo yaryar oo kaaliyeyaal ah, iyo taageerooyin ku meel gaar ah. |
