Railway truss bridge inoreva zambuko rine truss sechinhu chikuru chinotakura mutoro we superstructure. Iro truss bhiriji rinowanzo kuumbwa neiyo huru bhiriji furemu, yepamusoro uye yakaderera yakatwasuka uye yakarebesa yekubatanidza masisitimu, iyo bhiriji portal furemu uye yepakati muchinjiko brace, uye bhiriji deck system.
Inowanzo shandiswa kune njanji mabhiriji kana njanji viaducts uye overpasses ane diki spans.
1. Truss zambuko imhando yezambuko.
2. Mabhiriji eTruss anowanzoonekwa munjanji uye mumigwagwa; Yakakamurwa kuva marudzi maviri epamusoro chord simba uye rezasi chord simba.
3. Huru inoumbwa nepamusoro chord, yezasi chord uye dumbu tsvimbo; Chimiro chetsvimbo yemudumbu inokamurwa kuita oblique abdominal tsvimbo, yakatwasuka mudumbu tsvimbo; Nekuda kwehurefu hwakakura uye kutetepa kwetsvimbo pachayo, kunyangwe kubatana pakati pematanda kunogona "kugadziriswa", iyo chaiyo tsvimbo yekupedzisira yekukotama nguva inowanzo idiki kwazvo, saka dhizaini uye ongororo inogona kurerutswa se "hinged".
4.Mukati, mutsara ndiyo nhengo dzinoumba periphery ye truss, kusanganisira chepamusoro chepamusoro uye nechepasi. Nhengo dzinobatanidza chepamusoro nechepazasi chords dzinonzi web members. Zvinoenderana neyakasiyana nzira dzewebhu nhengo, dzakakamurwa kuita diagonal rods uye vertical rods.
Ndege panowanikwa chords nemadandemutande inonzi main girder plane. Kureba kwebhiriji kwezambuko hombe rinoshanduka richitevedza nhanho yekuita tambo yakakombama truss; iyo yepakati uye diki spans inoshandisa inogara truss urefu, iyo inonzi flat tambo truss kana yakatwasuka tambo truss. Iyo truss chimiro inogona kuumbwa kuita danda kana arch bhiriji, uye inogona zvakare kushandiswa sedanda guru (kana kuomesa danda) mune tambo yekutsigira system bhiriji. Mabhiriji akawanda etruss anovakwa nesimbi. Iyo truss bhiriji inzvimbo isina mhango, saka ine yakanaka kuchinjika kune yakapetwa kaviri.
1. yakakwirira kutakura simba
2.fast kuvaka speed
3.kuchengetedza simba uye kuchengetedza kwezvakatipoteredza
4. chitarisiko chakanaka chekuvaka
5.good seismic performance
6.kuvimbiswa kwehutano