isingeniso somkhiqizo
Ibhande lebhokisi lensimbi lakhiwe ngepuleti eliphezulu, ipuleti elingaphansi, iwebhu, ukwahlukanisa okuphambeneyo kanye neziqinisekiso zelongitudinal neziphambanayo. Izinhlobo zayo ezivame ukusetshenziswa eziphambanayo zihlanganisa ibhokisi elilodwa igumbi elilodwa, ibhokisi elilodwa amagumbi amathathu, ibhokisi eliphindwe kabili igumbi elilodwa, amabhokisi amathathu, igumbi elilodwa lebhokisi elilodwa, i-Multi-box single-chamber, i-trapezoid ehlanekezelwe enowebhu ethambekele, i-single-box multi-chamber enezinto ezingaphezu kwe Ama-web angu-3, ibhande lebhokisi lensimbi eliyisicaba, njll. Phakathi kwazo, ingxenye yebhande lebhokisi lensimbi esetshenziswa kakhulu yi-double-box single-chamber, futhi i-multi-box single-chamber isetshenziselwa amabhuloho anobubanzi obukhulu bebhuloho. Ibhande lebhokisi lensimbi eliyisicaba linesilinganiso esincane sobude be-beam ukuya kububanzi be-beam, futhi lisetshenziselwa ikakhulukazi imishayo enezimbambo njengamabhuloho amisiwe, amabhuloho ahlala ngekhebula, namabhuloho amakhothamo. Akuvamile ukusetshenziswa emabhulohweni e-beam. Ibhokisi elilodwa lebhokisi lensimbi elinama-web angaphezu kuka-3 akulula ukulikhiqiza nokulifaka, ngakho-ke alivamile ukusetshenziswa.
Izinzuzo zomkhiqizo
(1) Isisindo esincane nokonga impahla. Amabhuloho ensimbi yensimbi anganikeza ukudlala okugcwele kumthamo wensimbi othwala umthwalo, onga cishe u-20% wezinto zensimbi uma kuqhathaniswa namabhuloho ensimbi ane-span efanayo. Ngemuva kokuthi isakhiwo esingaphezulu sibe lula, izindleko zengxenye engezansi nazo zizoncishiswa.
(2) Ukugoba nokuqina kwe-torsion kukhulu. Ibhande lebhokisi lensimbi lithatha ingxenye eyisiphambano evaliwe, enganikeza ukugoba okukhulu nokuqina kwe-torsion kunamanye amafomu e-cross-sectional ngaphansi kwekhwalithi efanayo yezinto ezibonakalayo. Ifaneleka ngokukhethekile amabhuloho agobile kanye namabhuloho ensimbi ensimbi aqondile angaphansi kwemithwalo emikhulu ye-eccentric.
(3) Ukufakwa okusheshayo nokugcinwa kalula. I-steel box girder ingenziwa ibe yiyunithi enkulu efektri ukuze kuncishiswe umthwalo wokuxhuma kwesayithi futhi kuqinisekiswe ikhwalithi yokufaka nokunemba kokufaka. Ikamelo liyisakhiwo esivaliwe esinesakhiwo esilula, esilungele ukudweba, ukumelana nokugqwala nokugqwala, kanye nokugcinwa kwezandla kamuva.
(4) Okuhambisana nokuthuthukisa ukusebenza kahle kokumiswa. Ngokuthuthukiswa kwemishini emikhulu yokuphakamisa kanye nobuchwepheshe bokwakha, ibhande lebhokisi lilungele ukumiswa kwengxenye enkulu noma ukugqekeza, okuzuzisa ukuthuthukisa ukusebenza kahle kokumiswa nokunciphisa isikhathi sokwakha.
Izinhlelo zokusebenza zomkhiqizo
Ngenxa yesakhiwo sawo, ibhande lebhokisi lensimbi livame ukusetshenziselwa ibhande lebhokisi lensimbi eliphakeme kanye ne-ramp; Inhlangano yethrafikhi yesikhathi sokwakha ibhuloho elinekhebula elihlala isikhathi eside, ibhuloho elimisiwe, ibhuloho eliyi-arch eliqinisa ibhande kanye nebhuloho labahamba ngezinyawo.
