Ibhokisi yentsimbi yentsimbi, ekwabizwa ngokuba yintsimbi yentsimbi, yindlela esetyenziswa ngokuqhelekileyo kwiibhulorho ezinde. Ngokuqhelekileyo isetyenziswe kwiibhulorho ezinkulu ze-span, ibizwa ngokuba yintsimbi yebhokisi yebhokisi ngenxa yokuba ibonakala ngathi ibhokisi.
Kwiibhulorho ezinkulu ezixhaswe ngentambo, ibhokisi yentsimbi ibamba intsimbi ithatha amakhulu aliqela eemitha okanye namawaka eemitha.
Ikwahlulahlulwe ngamacandelo amaninzi e-boam yokuvelisa kunye nokufakwa, kwaye icandelo layo elinqamlekileyo lineempawu zemilo ebanzi kunye neflethi, kwaye umyinge we-aspect ratio ufikelela malunga ne-1:10. Umbhinqo webhokisi yentsimbi wenziwe ngokubanzi ngokuwelda ngokupheleleyo ipleyiti ephezulu, ipleyiti esezantsi, iwebhu, kunye nezahlulo ezinqamlezileyo, izahlulo zelongitudinal kunye nezilukhuni. Ipleyiti ephezulu yidekhi yebhulorho ye-orthotropic eyenziwe ngecwecwe lokugubungela kunye ne-longitudinal stiffeners. Ubukhulu bepleyiti nganye yebhokisi yentsimbi eqhelekileyo inokuba: ubukhulu be-cover 14mm, ubude be-U-shaped rib thickness 6mm, ububanzi bomlomo ophezulu 320mm, ububanzi bomlomo ophantsi 170mm, ukuphakama 260mm, isithuba se-620mm; ipleyiti esezantsi ubukhulu 10mm, longitudinal U-shaped stiffeners; Ubukhulu bewebhu ethambekeleyo yi-14mm, ubukhulu bewebhu ephakathi yi-9mm; isithuba sezahlulo ezinqamlezileyo yi-4.0m, kwaye ubukhulu yi-12mm; ukuphakama kwe-beam yi-2 ~ 3.5m.
Ibhokisi yentsimbi yentsimbi luhlobo lolwakhiwo oluhlala lusetyenziswa kubunjineli. Ukuze ufunde impembelelo yesithuba se-diaphragms enqamlezileyo ekugqwethekeni kwebhokisi yentsimbi exhaswa ngokulula phantsi komthwalo ogxininisiweyo, i-girder yebhokisi yentsimbi yenkxaso elula enamanani ahlukeneyo e-diaphragms eguquguqukayo yayisetyenziselwe ukuthelekisa umphumo wayo wokuGqwetha kunye nefuthe eliqinileyo le-torsion. phantsi komthwalo, ijika lenguqu yesiphumo esiphezulu sokuphazamiseka kunye nenani le-diaphragms lifunyenwe. Umthwalo ogxininisiweyo usetyenziselwa phezulu kwiwebhu yebhokisi yebhokisi, kwaye yamkelwa ngokwemiqathango emine yokusebenza yokuphazamiseka, ukunyanzeliswa okuqinileyo, ukugoba kwe-symmetrical kunye nomthwalo we-eccentric. Indlela yokuchithwa komthwalo ibalwa.
Umzi-mveliso we-Zhenjiang Great Wall Heavy uneetoni ezingaphezu kwama-50 zeekhreyini, uyilo lobuchwephesha, ukuwelda, kunye namaqela ofakelo enza imveliso kunye nokufakelwa kwemiqadi yeebhokisi zentsimbi.
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.
1. Amandla aphezulu okuqina kunye nomthamo ophezulu wokuthwala
2. Isakhiwo sokukhanya, esifanelekileyo kwiibhulorho ezide
3. Ufakelo olulula, ixabiso eliphantsi, umjikelo omfutshane
4. Umgangatho oqinisekisiweyo kunye nobungakanani, kunye nokuthembeka okuphezulu
5. Ukusebenza okuphezulu kokwakhiwa kunye nokhuseleko oluphezulu