Ulwakhiwo lweSithuba seTruss: UKhetho oluNgconoyo kwiZakhiwo zikawonke-wonke ezine-span ezikhulu

Njengesebe elibalulekileyo lesakhiwo segridi yendawo, isakhiwo se-truss yendawo sibonisa ukusebenza okuphezulu komatshini, ubunzima bokukhanya, ukuqina okuphezulu, ukuchasana kwe-seismic, ixabiso eliphantsi kunye nokubunjwa okulula. Sele ibe yeyona nkqubo ikhethwayo yolwakhiwo kuphahla lwezakhiwo zikawonke-wonke ezikhulu ezifana nezikhululo zeenqwelomoya, amabala emidlalo, amaziko emiboniso kunye nezikhululo.

Ulwakhiwo lwe-Space truss luhlobo oluphambili lwenkqubo yegridi yendawo. Sisakhiwo sebha yendawo eyenziwe ngamalungu ahlelwe rhoqo kwaye aqhagamshelwe ngokudibanisa. Ikakhulu iyilwe njengoluhlu oluphindwe kabini okanye uluhlu olubanzi lweegridi ezisicaba, zahlukile kumaqokobhe afakwe umaleko omnye.

Izakhiwo ze-Space truss ziqhele ukwamkelwa kwizakhiwo zophahla, ubukhulu becala kumgangatho omnye kunye neemilo ezisicaba. Zisetyenziswa ngokubanzi kwizakhiwo zoluntu kuqukaiindawo zokuzilolonga, iiholo zemiboniso, iiholo zokulinda kwisikhululokwayeizikhululo zeenqwelomoya. Kwiminyaka yakutshanje, baye basetyenziswa kwizakhiwo zoshishino ezifanaiindawo zokugcina iimpahla, ii-hangars kunye neeworkshops zasefektri. Ukuqhayisa ngeenzuzo ezahlukeneyo, zigqama njengeyona ndlela iphambili kwizakhiwo zikawonke-wonke ezinobubanzi obukhulu.

Isithuba esikhulu esingenakholamu.

Izakhiwo ze-Space truss zifikeleleka ngokulula kwi-column-free coverage ukusuka kwi-60 ukuya kwi-150 yeemitha, ukudala indawo yangaphakathi evuleke ngokupheleleyo kunye nebanzi. I-Beijing Capital Gymnasium yamkele ubume be-truss yendawo kunye nobude beemitha ezingama-99 kunye ne-112.2 yeemitha. Olu ncedo lwenza i-space truss ibe lukhetho oluqhelekileyo lophahla lwesikhululo seenqwelomoya.

Ukusebenza kakuhle kwezoqoqosho.

Isakhiwo sibonisa ukusetyenziswa kwentsimbi ephantsi kunye neendleko ezilawulekayo ezipheleleyo. Ishedi yentsimbi ye-Hangzhou Renhe Grain Reserve Terminal isebenzisa i-truss yendawo yephiramidi ene-square-layer ye-square, kunye nesithuba esiphezulu se-95 yeemitha, inikezela ukwakhiwa kweendleko.

Ukusebenza kakuhle kwenyikima.

Ngombulelo kuxinzelelo oluphezulu loxinzelelo lwesithuba, i-ductility elungileyo kunye nokuzilinganisela okulula, izakhiwo zetruss yendawo zigqwesa izakhiwo zekhonkrithi zemveli ekuxhathiseni inyikima. Njengesakhiwo esikhulu se-hub kwindawo ye-seismic, iSitenali yeSikhululo seenqwelomoya saseBeijing Daxing sixhotyiswe ngeebheringi ezizimeleyo eziyi-1152 kunye nezidambisi ezili-160 zokuqinisekisa ukhuseleko olusebenzayo kwiinyikima ezinamandla.

Isitayile soyilo esiguquguqukayo.

Ulwakhiwo lunokuqonda iimilo ezintsonkothileyo ezinje ngehyperboloid, umgangatho osimahla kunye nomphezulu wamaza oqhubekayo, ukuhlangabezana neemfuno zoyilo oluphawulweyo lwezakhiwo zikawonke-wonke zanamhlanje. Uphahla oluphambili lweSikhululo seenqwelomoya iZhuhai T2 Terminal ithatha ixesha elide eliguquguqukayo-curvature hyperboloid hollowed steel truss. IZiko lezeMidlalo laseShenzhen Bay lidibanisa iqokobhe elenziwe ngelayile elinye kunye netrass egobileyo ephindwe kabini, zombini zisebenza njengemizekelo eyimifanekiso eyiyo.

Ukongeza, izakhiwo ze-truss yendawo ziza ngeendlela ezahlukeneyo kunye nokuhlelwa okuphambili ngolu hlobo lulandelayo:

I-truss yendawo ye-double-layer, eyenziwe ngamacangci aphezulu, iichords ezisezantsi kunye namalungu ewebhu, yindlela eqhelekileyo eyamkelekileyo.

Ukukhethwa kwesakhiwo setrasi yendawo kugqitywe ngokubanzi ngezinto ezibandakanya ukumila kweplani yesakhiwo, iimfuno zezakhiwo, umthwalo, ubude, inkxaso kunye neendleko zokwakha.

Ngokubanzi, ukwamkela izakhiwo ze-truss zendawo kwenza ukuba kubekho iindawo ezinkulu kunye nezixhobo ezimbalwa. Ngokuchasene nemvelaphi yophuhliso olukumgangatho ophezulu kunye nolwakhiwo oluluhlaza, i-truss yendawo isebenza njengesiseko esiluqilima somqolo wezakhiwo zikawonkewonke.