(1)Isici sokulayisha
Ngokusho komklamo webhuloho lomgwaqo omkhulu kanye nencazelo yokwakha ekhishwe uMnyango Wezokuthutha, i-coefficient yokulayisha imi kanje:
I-coefficient yokulayisha ngokweqile yemodi yokwandisa nezinye izici lapho ukhonkolo we-girder webhokisi uthululwa :1.05;
I-Dynamic coefficient yokuthela ukhonkolo :1.2
Isici somthelela Wefomu Lokuhamba Ngefomu Ukuhamba ngaphandle komthwalo:1.3;
I-coefficient yokuzinza yokumelana nokugumbuqela lapho uthela ukhonkolo kanye neFomu Traveler: 2.0;
Isici sokuphepha sokusetshenziswa okuvamile kweFomu Traveler 1.2.
(2)Layisha ku-truss eyinhloko ye-Form Traveler
I-Box girder load:Umthwalo wegida lebhokisi ukuthatha isibalo esikhulu kakhulu, isisindo singamathani angama-411.3.
Izinto zokwakha kanye nomthwalo wesixuku: 2.5kPa;
Umthwalo odalwe ukulahlwa nokudlidliza kukakhonkolo:4kpa;
(3)Layisha inhlanganisela
Inhlanganisela yomthwalo wokuqina nokuhlola amandla :Isisindo sikakhonkolo+Ifomu Isisindo Somhambi+impahla yokwakha+umthwalo wesixuku +amandla okudlidliza lapho ubhasikidi uhamba: isisindo Somhambi Wefomu+umthwalo womthelela(0.3*isisindo Somhambi Wefomu)+ umoya umthwalo
Bheka ukucaciswa kobuchwepheshe bokwakhiwa kwamabhuloho omgwaqo omkhulu kanye nezinhlinzeko zama-culverts:
(1) Ukulawulwa kwesisindo soMhambi Wefomu kuphakathi kwezikhathi ezingu-0.3 nezingu-0.5 zesisindo sikakhonkolo sikakhonkolo othelayo.
(2) Ubukhulu obuvumelekile bokuguqulwa (kuhlanganise nesamba sokuguqulwa kwesihlilingi):20mm
(3) Isici sokuphepha sokunqanda ukugingqika phakathi nokwakhiwa noma ukunyakaza :2.5
(4) Isici sokuphepha sohlelo oluzibambele mathupha:2