Yini I-Buckling Restrained Brace?
I-Buckling Restrained Brace(okufushane ku-BRB) iwuhlobo lwedivayisi yokumanzisa enekhono eliphezulu lokulahla amandla.Kuwuhlaka lwesakhiwo esakhiweni, esiklanyelwe ukuvumela isakhiwo ukuthi simelane nokulayisha okulandelanayo okujikelezayo, ngokuvamile ukulayisha okubangelwa ukuzamazama komhlaba.Iqukethe ingqikithi yensimbi ezacile, ikesi likakhonkolo elidizayinelwe ukusekela ngokuqhubekayo umongo kanye nokuvimbela ukubopha ngaphansi kokucindezelwa kwe-axial, kanye nesifunda esibonakalayo esivimbela ukusebenzisana okungafuneki phakathi kwakho kokubili.Ozimele abakakiwe abasebenzisa ama-BRB - abaziwa ngokuthi amafreyimu anebraced braced, noma ama-BRBF - anezinzuzo ezibalulekile ngaphezu kozimele abakakiwe abajwayelekile.
Ngabe ibrace eboshiwe eboshiwe isebenza kanjani?
Izingxenye ezintathu ezinkulu ze-BRB zingahlukaniswa umnyombo wayo wensimbi, isendlalelo sayo sokuvimbela ibhondi, kanye nekesi yayo.
Umgogodla wensimbi uklanyelwe ukumelana namandla aphelele e-axial athuthukiswe ekubambeni.Indawo yayo ye-cross-sectional ingaba ngaphansi kakhulu kunaleyo ye-braces evamile, njengoba ukusebenza kwayo akunqunyelwe ukubopha.Umnyombo uqukethe ubude obuphakathi nendawo obuklanyelwe ukuthela nge-inelastically uma kwenzeka kuba nokuzamazama komhlaba kwezinga lokuklama;nobude obuqinile, obungakhiqizi kuzo zombili iziphetho.Ukwenyuka kwendawo ye-cross-sectional yesigaba esingakhiqizi kuqinisekisa ukuthi ihlala i-elastic, futhi ngaleyo ndlela i-plasticity igxilwe engxenyeni ephakathi yensimbi yensimbi.Ukucushwa okunjalo kunikeza ukuzethemba okuphezulu ekubikezelweni kokuziphatha kwesici nokwehluleka.
Isendlalelo sokuvimbela ibhondi sihlukanisa i-casing kusuka kumongo.Lokhu kuvumela inkaba yensimbi ukuthi imelane namandla aphelele e-axial athuthukiswe ku-bracing, njengoba yakhelwe.
I-casing - ngokuqina kwayo okuguquguqukayo - ihlinzeka ngokusekela okuhlangothini ngokumelene nokugoqa okuguquguqukayo komgogodla.Ngokuvamile kwenziwa ngamashubhu ensimbi agcwele ukhonkolo.Umbandela wedizayini yekesi ukuhlinzeka ngokuvimbela okwanele okusemaceleni (okungukuthi ukuqina) ngokumelene nokubopha okuphakathi kwensimbi.
Iyini inzuzo yebrace evinjiwe?
Izifundo zokuqhathanisa, kanye namaphrojekthi wokwakha aqediwe, aqinisekisa izinzuzo zamasistimu ohlaka oluvinjiwe oluqinile (BRBF).Izinhlelo ze-BRBF zingaba phezulu kunezinye izakhiwo ezivamile ezilahlayo ngenhlonipho yomhlaba wonke ekusebenzeni kahle kwezindleko ngenxa yalezi zizathu ezilandelayo:
Abakaki abavimbelwe ibhande banokuziphatha okuqeda amandla okuthuthuke kakhulu kusukela kulokho kwamafreyimu aqinile aqinile (ama-SCBF).Futhi, ngenxa yokuthi isici sazo sokuziphatha siphezulu kunaleso samanye amasistimu wokuzamazama komhlaba (R=8), futhi izakhiwo zivame ukuklanywa ngokwenyuka kwesikhathi esibalulekile, imithwalo yokuzamazama komhlaba ivamise ukuba ngaphansi.Lokhu kungase kuholele ekuncishisweni kosayizi belungu (ikholomu nogongolo), ukuxhumana okuncane nokulula, kanye nezidingo zesisekelo ezincane.Futhi, ama-BRB ngokuvamile ayashesha ukumisa kunama-SCBF, okuholela ekongeni kwezindleko kosonkontileka.Ukwengeza, ama-BRB angasetshenziswa ekwenzeni kabusha i-seismic retrofitting.Okokugcina, uma kwenzeka kuba nokuzamazama komhlaba, njengoba umonakalo ugxile endaweni encane uma kuqhathaniswa (umgogodla okhiqiza i-brace), uphenyo lwangemva kokuzamazama komhlaba nokushintshwa kulula.
Ucwaningo oluzimele luphethe ngokuthi ukusetshenziswa kwezinhlelo ze-BRBF, esikhundleni sezinye izinhlelo zokuzamazama komhlaba, kukhiqize izindleko zokonga ngonyawo lwesikwele kufika ku-$5 ngonyawo lwesikwele ngasinye.
Iyini inzuzo yebrace evinjiwe?
I-buckling restrained brace system ayisetshenziswa kuphela kumaphrojekthi amasha wokwakha, kodwa futhi ukuqinisa nokuvuselela amaphrojekthi wezakhiwo ezindala kuncike ekusebenzeni kwayo okuhle kakhulu kanye nezindleko eziphansi.Izinkambu zesicelo zimi kanje.
Izakhiwo eziphakeme / Izikhumulo zezindiza / Izikole nezibhedlela / Isikhungo senkomfa kanye nemibukiso / Isakhiwo semboni yezimboni
