Kodi Crane ya Double Girder Bridge ndi chiyani?

A Kireni ya Mlatho Wachiwiri wa Girderndi mtundu wa crane yokwera pamwamba yomwe ili ndi ma girders awiri ofanana (mipiringidzo yopingasa) omwe amathandizira makina okweza ndi trolley a crane. Kapangidwe kameneka kamapereka zabwino zingapo, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana. Nazi zina mwazinthu zazikulu ndi zabwino:

Zinthu Zofunika Kwambiri:
Kapangidwe:

Ma Girder Awiri: Kapangidwe ka girder kawiri kamalola kuti pakhale nthawi yayitali komanso mphamvu yayikulu yonyamulira poyerekeza ndi ma crane a girder amodzi.
Dongosolo la Trolley: Choyimitsa chimayenda motsatira ma girders, zomwe zimathandiza kuti munthu azitha kunyamula moyimirira bwino komanso kuyenda mopingasa.
Kukweza Mphamvu:

Kawirikawiri, ma crane awiri onyamula katundu amatha kunyamula katundu wolemera, nthawi zambiri kuposa mphamvu za ma crane amodzi onyamula katundu.
Kuchotsa Kutalika:

Kapangidwe kake kamalola kuti mutu ukhale wokulirapo, zomwe zimathandiza ponyamula zinthu zazitali kapena ntchito zomwe zimafuna malo oimirira.
Kusinthasintha:

Zitha kukhala ndi zolumikizira zosiyanasiyana, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito mitundu yosiyanasiyana ya zipangizo ndi ntchito.
Kukhazikika:

Kapangidwe ka girder kawiri kamapereka kukhazikika komanso kulimba kwabwino, kuchepetsa kugwedezeka ndikuwongolera chitetezo panthawi yogwira ntchito.
Mapulogalamu:
Ma cranes a mlatho wa double girder amagwiritsidwa ntchito kwambiri mu:

Malo opangira zinthu
Nyumba zosungiramo katundu
Malo otumizira ndi kulandira
Mafakitale achitsulo
Malo omanga
Mapeto:
Ponseponse, ma cranes a double girder bridge ndi njira yolimba komanso yosinthasintha yonyamulira zinthu zolemera komanso yogwiritsira ntchito m'mafakitale osiyanasiyana, zomwe zimapangitsa kuti pakhale mphamvu yabwino, kukhazikika, komanso kugwira ntchito bwino.