chigadzirwa sumo
Simbi bhokisi girder inoumbwa nepamusoro ndiro, pasi ndiro, webhu, transverse partition uye longitudinal uye transverse stiffeners. Mafomu ayo anowanzo shandiswa muchinjika-chikamu anosanganisira bhokisi rimwechete kamuri imwe chete, bhokisi rimwechete kamuri nhatu, kaviri bhokisi kamuri imwe chete, matatu bhokisi kamuri imwe chete, Multi-bhokisi rimwe-chamber, inverted trapezoid ine inclined webs, single-box multi-chamber ine zvinopfuura. 3 webs, flat steel box girder, etc. Pakati pavo, iyo inonyanya kushandiswa yesimbi yebhokisi girder chikamu i-double-box single-chamber, uye yakawanda-bhokisi imwe-chamber inoshandiswa kune mabhiriji ane upamhi hukuru hwebhiriji. Flat simbi bhokisi girder ine diki reshiyo yekureba kwedanda kusvika kuhupamhi hwedanda, uye inonyanya kushandiswa matanda ane ribbed akadai semabhiriji ekumisikidzwa, tambo-akagara mabhiriji, uye arch mabhiriji. Haiwanzo kushandiswa mumabhiriji ematanda. Single-box multi-chamber steel box girder ine anopfuura 3 webs haisi nyore kugadzira nekuisa, saka haiwanzo shandiswa.
Product zvakanakira
(1) Huremu huremu uye kuchengetedza zvinhu. Simbi bhokisi girder mabhiriji anogona kupa kutamba kwakazara kune inotakura-inotakura simba resimbi, kuchengetedza ingangoita 20% yezvinhu zvesimbi zvichienzaniswa nesimbi truss mabhiriji ane span yakafanana. Mushure mokunge chimiro chepamusoro chichiva chakareruka, mari yechikamu chepasi ichaderedzwawo.
(2) Kupeta uye torsional rigidity yakakura. Iyo simbi yebhokisi girder inotora yakavharwa muchinjiko chikamu, iyo inogona kupa yakakura kukotama uye torsion rigidity kupfuura mamwe mafomu emuchinjiko pasi pehumwe hunhu hwemhando. Inonyanya kukodzera mabhiriji akakomberedzwa uye yakatwasuka simbi bhokisi girder mabhiriji pasi pemitoro yakakura eccentric.
(3) Kuisa nekukurumidza uye nyore kugadzirisa. Iyo simbi yebhokisi girder inogona kugadzirwa muhombe unit mufekitori kuderedza basa rekubatanidza saiti uye kuve nechokwadi chekuisa mhando uye yekumisikidzwa kwayo. Iyo kamuri yakavharwa chimiro chine chimiro chakareruka, icho chiri nyore kupenda, anti-corrosion uye ngura kuramba, uye gare gare manual manual.
(4) Inobatsira pakuvandudza erection kunyatsoshanda. Nekufambiswa kwemidziyo yakakura yekusimudza uye tekinoroji yekumisikidza, girder yebhokisi yakakodzera kune yakakura-chikamu erection kana jacking, iyo inobatsira kuvandudza kugona kwe erection uye kupfupisa nguva yekuvaka.
Zvishandiso zvechigadzirwa
Nekuda kwechimiro chayo chechimiro, simbi yebhokisi girder inowanzoshandiswa kune yakasimudzwa uye ramp simbi bhokisi girder; kuvaka nguva traffic sangano refu-span cable-yakagara zambuko, kuturika zambuko, arch zambuko stiffening girder uye pedestrian zambuko simbi bhokisi girder.
