3D3S uamea fausaga mautu fausiaina ma ata faiga e tele lava faʻatatau i malamalama faʻavaʻa faʻavae ma le tele-fale fale fausaga. E mafai ona faitau le 3D design model o le 3D3S design system, faitau le 3D calculation model o le SAP2000 pe faʻamalamalama saʻo le laina fesoʻotaʻi e faʻaulu ai le 3D model. E maua ai ituaiga uma o tuʻufaʻatasiga ituaiga o utupoto ma pou mo tagata faʻaoga e filifili mai ai. E otometi faʻamaeʻaina node fuafuaina pe siaki faʻatusatusaga, faʻavasegaina ma numera numera ma pa ituaiga, faʻatonutonu node, faʻateleina / paʻu / suia faʻamaʻaʻaina peleni, suia faʻamau faʻatulagaina ma le tele, fesuiaʻi tele las, ma toe siakiina faʻatusatusaga e faʻatupuina saʻo node mamanu fuafuaina fuafuaina ma tuʻu saʻo fausia ata fausiaina ata muamua, ata fausiaina ata ma faʻagasologa auiliiliga e tusa ai ma le tolu-itu itu mautu faʻataʻitaʻiga

O le nonlinear fuafuaina ma auiliiliga faiga o 3D3S uamea ma spatial fausaga ua vaevaeina i masani lomiga ma alualu i luma lomiga. O le masani lomiga e mafuli talafeagai mo soʻo se pa faiga fausaga aofia ai utupoto, laʻau ma uaea. E mafai ona faʻaaogaina e fuafua ai le nonlinear load-displaced relationship ma le maualuga o le mafai gafatia o le fausaga, ma le uluaʻi setete fomu-suʻesuʻeina suʻesuʻega ma le galue setete fuafuaina o le pretension fausaga, e aofia ai le fomu-sailiga ma le faʻatatauina o uaea-uaea sisitema , cable-beam system, cable-net system ma paluga faʻafuaseʻi, o le fuafuaina o le faʻamamaina o uiga o le pa fausaga, o le fuafuaina o faʻavae malosi uiga ma le faʻatatauina o le maoaʻe taimi talaʻaga. O le faʻamatalaga alualu i luma aofia ai galuega tauave uma o le masani lomiga, ma mafai foi fuafua, auiliili ma faʻaali le atoa gaioiga o fausaga sisitema fausiaina. O le sitepu sitepu ma ona fesoʻotaʻi tagata, soʻoga, avega ma tuaoi mafai ona faʻamatalaina faʻatasi e faʻamaeʻa le nonlinear fuafuaina o le atoa gaioiga. O tuutuuga moni i le fausiaina e pei o le faʻaopoopoina o fesoʻotaʻiga, faʻamalosi uaea feteʻenaʻi ma lagolago gaogao mafua mai deformation i le fausiaina gaioiga mafai ona mafaufauina.

3D3S ausilali fausaga tisaini ma tusia faiga mafai ona mamanuina ma siaki tutoʻatasi faavae, fasi faavae, uamea fausaga utupoto, uamea fausaga pou, uamea lagolago fausaga, profiled uamea ipu tuʻufaʻatasia tuʻufaʻatasi, utupoto utupoto ma laʻititi ma feololo galulue lapoa autilo. E mafai foi ona tuʻu saʻo faʻatupuina pepa faʻatulagaina ma AutoCAD tisaini ma fausia ata. Mo faasolosolo tamoe ma feauauaʻi uʻamea faasitepu, AutoCAD fausiaina ata mafai ona tuusao gaosia e tusa ai ma le faataʻitaʻi tapulaʻa.