Muaj ntau hom cranes xaiv los ntawm kev txhim kho steel qauv kev cob qhia, xws li choj cranes, gantry cranes, semi-gantry cranes, cantilever cranes, thiab lwm yam.
Ob qhov kawg ntawm tus choj crane yog nyob rau ntawm cov cement siab siab lossis cov hlau txhawb nqa, zoo li tus choj. Tus choj khiav longitudinally raws cov lem tau muab tso rau ntawm cov qauv siab ntawm ob sab. Nws tuaj yeem siv tag nrho ntawm qhov chaw hauv qab tus choj txhawm rau nqa cov khoom tsis muaj kev cuam tshuam los ntawm cov khoom siv hauv av. Nws yog feem ntau siv thiab ntau hom lifting machinery.
Lub gantry crane yog deformation ntawm tus choj crane. Cov qauv hlau zoo ib yam li lub rooj tsavxwm. Ob txhais ceg raug ntsia hauv qab lub ntsiab nqaj. Nws tuaj yeem taug kev ncaj nraim ntawm txoj kev hauv av. Ob qhov kawg ntawm lub ntsiab nqaj tuaj yeem muaj cov kab hluav taws xob overhanging.
Semi-gantry crane yog hom nruab nrab ntawm tus choj crane thiab gantry crane. Ib kawg khiav ntawm lub Hoobkas crane nqaj thiab lwm qhov kawg khiav hauv av khiav, uas tuaj yeem siv qhov chaw zoo dua.
Cantilever cranes yog hoisting machinery siv hauv kev ua haujlwm me me. Lawv haum rau nqa cov khoom hnyav hauv qhov chaw ua haujlwm ruaj khov. Lub lifting tonnage feem ntau me me.
Tso cai sib txawv ntawm crane beam installation nyob rau hauv steel qauv Hoobkas tsev (mm):
Mid-span verticality ntawm beam: h / 500;
Lateral khoov sagittal qhov siab: l/1500 thiab yuav tsum tsis txhob siab tshaj 10.0;
Vertical sagittal qhov siab: 10.0
Kev hloov chaw ntawm kev txhawb nqa ntawm ob qho kawg:
1. Thaum ntsia rau ntawm ib sab steel, qhov offset rau nruab nrab ntawm lub corbel: 5.0;
2. Thaum ntsia rau ntawm lub pob zeb ua ke, qhov offset ntawm qhov chaw axis: 5.0;
Qhov offset ntawm qhov nruab nrab ntawm lub crane nqaj txhawb stiffening phaj thiab kem siab stiffening phaj: t / 2;
