Gabatarwar samfur
Bailey Bridge Rock: ana amfani da shi don sarrafa alkiblar truss ɗin turawa da ɗaukar nauyin gada.An shirya ƙarfe na shim na rabin-crescent a ƙarƙashinsa, wanda ya dace don tallafawa a kan katako na gada na gada.Dutsen yana iya lilo sama da ƙasa kyauta.Akwai kananan rollers 4 a bangarorin biyu.Lokacin turawa da jan tazarar gadar, ƙananan igiyoyin truss koyaushe ana sarrafa su a tsakiyar dutsen don tabbatar da alƙawarin turawa da ja tazarar gadar.Ya kamata a kafa dutsen da nadi a bangarorin biyu na macijin.Dutsen yana da nauyin kilogiram 102 kuma matsakaicin ƙarfin ɗaukar kaya shine 250 kN.
Aikace-aikace
Matsakaicin gangaren wurin da aka taru bai kamata ya wuce 3% ba, kuma gangaren da ke kwance ya kamata ya kasance a kwance.Saita abin nadi a matsayin abin abin nadi, kuma ya kamata a sanya tiren samfurin a ƙasa.Kowane dutse yana ba da damar jeri ɗaya kawai na trusses ya wuce.Lokacin da aka kafa gada mai layi daya, ana sanya rockers biyu akan kowane banki;idan aka kafa gadoji na layi biyu da uku, sai a sanya rockers hudu akan kowane banki.Lokacin tura layuka uku na gadoji, don gujewa hana shingen layin waje mai santsi, yakamata a cire rollers na waje da ke ƙarƙashin layin tsakiyar.Nisa tsakanin dutsen da farantin tallafi yana da kusan 1.0 m, kuma aƙalla bai wuce 0.75 m ba.An saita farantin wurin zama a matsayin axis farantin kujera.Tun da ginin gada yana da 79 cm sama da ƙasan farantin wurin zama, ya kamata a tono matsayin farantin wurin da kyau don rage haɓakar benen gada.Gabaɗaya, bambancin tsayi tsakanin tudun gada da farfajiyar hanya bai kamata ya wuce 30 cm ba.
