ukwaziswa kwemveliso
Ibhokisi yentsimbi yentsimbi yenziwe ngepleyiti ephezulu, ipleyiti esezantsi, iwebhu, isahlulo esinqamlezileyo kunye ne-longitudinal and transverse stiffeners. Iifom zayo ezisetyenziswa ngokuqhelekileyo ezinqamlezileyo ziquka ibhokisi enye igumbi elinye, ibhokisi enye amagumbi amathathu, ibhokisi kabini igumbi elinye, iibhokisi ezintathu igumbi elinye, Iibhokisi ezininzi-igumbi elinye, trapezoid inverted kunye webs inclined, ibhokisi enye-ibhokisi multi-chamber ngaphezu I-3 webs, i-flat iron girder girder, njl. Phakathi kwazo, icandelo lebhokisi lebhokisi lentsimbi elisetyenziswa kakhulu liyi-double-box single-chamber, kunye ne-multi-box single-chamber isetyenziselwa iibhulorho ezinobubanzi obukhulu bebhuloho. Isibambiso sebhokisi yentsimbi esicaba sinomlinganiselo omncinci wobude be-beam ukuya kububanzi be-beam, kwaye isetyenziswa ikakhulu kwimiqadi eneembambo ezinje ngeebhulorho zokunqunyanyiswa, iibhulorho ezihlala ngekhebula, kunye neebhulorho zearch. Ayifane isetyenziswe kwiibhulorho ze-beam. Ibhokisi enye ye-multi-chamber steel girder ene-webs engaphezu kwe-3 ayilula ukwenza kunye nokuyifaka, ngoko ayifane isetyenziswe.
Iinzuzo zemveliso
(1) Ubunzima obulula kunye nokonga impahla. Iibhulorho zebhokisi zensimbi zinokunika umdlalo opheleleyo kumthamo wokuthwala umthwalo wentsimbi, ukonga malunga ne-20% yezinto zetsimbi xa kuthelekiswa neebhulorho zentsimbi ezinexesha elifanayo. Emva kokuba isakhiwo esiphezulu sibe lula, iindleko zecandelo elisezantsi nazo ziya kuncitshiswa.
(2) Ukugoba kunye ne-torsional rigidity inkulu. Ibhokisi yebhokisi yentsimbi ithatha icandelo elinqamlekileyo elivaliweyo, elinokubonelela ngokugoba okukhulu kunye nokuqina kwe-torsion kunezinye iifom ezinqamlezileyo phantsi komgangatho ofanayo wezinto. Ilungele ngokukhethekileyo iibhulorho ezigobileyo kunye neebhulorho zebhokisi zentsimbi ezithe tye ezixhomekeke kwimithwalo emikhulu ye-eccentric.
(3) Ufakelo olukhawulezayo kunye nokugcinwa lula. Ibhokisi yebhokisi yensimbi ingenziwa ibe yiyunithi enkulu kwifektri yokunciphisa umsebenzi wokudibanisa indawo kunye nokuqinisekisa umgangatho wofakelo kunye nokuchaneka kokufakela. Igumbi liyisakhiwo esivaliweyo kunye nesakhiwo esilula, esilungele ukupeyinta, ukuchasana nokugqwala kunye nokumelana nokugqwala, kunye nokugcinwa kwencwadi kamva.
(4) Ukuncedisa ekuphuculeni ukusebenza kakuhle kokwakhiwa. Ngokuqhutyelwa phambili kwezixhobo ezinkulu zokunyusa kunye neteknoloji yokumisa, i-box girder ifanelekile kwi-erection enkulu okanye i-jacking, enenzuzo ekuphuculeni ukusebenza kakuhle kunye nokunciphisa ixesha lokwakha.
izicelo Product
Ngenxa yefom yesakhiwo, i-steel box girder isetyenziswa ngokubanzi kumasipala ophakamileyo kunye ne-ramp iron girder; umbutho ixesha lokwakha traffic ixesha elide ibhulorho cable-wahlala, ibhulorho ukunqunyanyiswa, ibhulorho ibhulorho stiffening girder kunye ibhulorho ngeenyawo ibhulorho intsimbi ibhokisi girder.
