I-San Diego-Coronado Bridge (ebizwa ngokuqhelekileyo njengeCoronado Bridge) ibhuloho ye-2.12-mile ejikeleza iSan Diego Bay kwaye idibanisa iSixeko saseSan Diego neSixeko saseCoronado. Yona ndlela eyona ndlela yokufikelela kwiindawo zamabhantshi aseCoronado kunye neSitishi seNyakatho ye-North Island, kunye neStrand Strand isthmus edibanisa i-Coronado ukuya kwi-Imperial Beach kunye nomhlaba.
Uphi na indawo?
I-Coronado Bridge ingafumaneka kwi- Interstate 5 kwindawo yaseBarrio Logan, ngasentla kumzi wesiXeko.
Ikhuphuka iphinde ihla ekhondweni elikhulayo eliphela kwi-Fourth Avenue eCoronado.
Kwakhiwa nini?
Ukwakhiwa kwebhuloho kwaqala ngo-1967 waza wavulwa ngo-Agasti 3, 1969. URobert Mosher wayengumcebisi oyintloko wokwakha, owenziwe ngetsimbi ye-orthotropic kwaye unesakhiwo esincinci, esinjengobhubhe esenzelwe ubuchule kunye nobabalo. Isakhiwo sisebenzisa ibhokisi ebanzi eqhubekayo yebhodi yokufihla umhlaba ukufihla ama-brace, amajoyina, kunye nabanqabileyo ngokuqhelekileyo kubonakala kwezinye iibhulorho. UMosher uthi wayilungiselele iinguqu ezingama-30 emva kweBalboa Park eCabrillo Bridge.
Kutheni Kubalulekile?
Ukuvulwa kwebhuloho kwagqitywa imifuno yexesha elide eliwela iSan Diego Bay kwaye linikezela ngokukhawuleza nokulula kwiCoronado. Ukwakhiwa okwakhiwayo kunye nococekileyo kunye nopende oluhlaza okwesibhakabhaka lenze ibhuloho enye yeempawu eziphawulekayo zeSan Diego. Umcwangcisi uMosher uthi i-curve eyi-90-degree ifuneka ngokukhawuleza kangangokuthi iyakwazi ukuphakama ukuphakama kwamamitha angama-200 kunye ne-4.67 yeepesenti kwibakala, ivumela ukuba nomkhumbi wezindiza uhambe ngaphantsi.
Ngowe-1970, yafumana iNkcazo eNhle yeBhanki yeMerit evela kwi-American Institute of Steel Construction.
Amaqiniso kunye namanani
I-Bridge yaseCoronado ixabisa i-47.6 yezigidigidi zokwakha. Ibhuloho yangaphambili yebhaloji yahlawula iibhondi zayo zokwakha ngo-1986, kwaye i-dollar ye-$ 1 yachithwa ngo-2002. Ibhuloho ineendlela ezinhlanu zezithuthi kwaye ithwala imoto engama-85,000 imihla ngemihla.
Ukukhwabanisa kweekhonkrithi eziphezulu ezingama-34 zisekhonkco zincinci ngokwaneleyo ukuvumela imbonakalo engabonakaliyo, equka iSanto Diego , kwizithuthi zendlela. Iindlela zokuthunyelwa zihanjiswe lixesha elide kakhulu elisezantsi lebhokisi lebhokisi elinesithathu: ibanga eli-1,880. Iibhombo zihlala kuma-487 amathunjwa ekhonkrithi aqineleyo. Ngomnyaka we-1976, ibhuloho yayiphinde yenziwe ngeentonga ezikhethekileyo ukukhusela umonakalo wenyikima.
Ubusazi?
- Ngaphantsi kwendlela i-catwalk yensimbi eyenziwe ukulungiselela ukugcinwa kwebridge. I-Caltrans iqhuba ukuhlola okuqhelekileyo ukufumana ukukhwabanisa kwekhonkrithi kunye neendawo ezibonakalayo ezingenanto.
- Ngenye yeebhanti ezibulala kakhulu e-US, elandela iSan Francisco yaseGolden Gate Bridge kunye ne-Seattle's Aurora Bridge.
- Umqambi uMosher uthathe iqela lomtya ukuze aphume iiphulo zokuhamba zebhuloho kwaye amisele imirhumo kunye neemfuno zombuso zebhulorho, njengoko i-span idinga ukuba ibe ngaphezu kweekhilomitha ezimbini ubude, okwenza indlela eqondileyo ingenakwenzeka.
- Ukudweba ibhuloho ngumsebenzi ongapheliyo. Umsebenzi wabasebenzi abathandathu usebenza unyaka wonke ukuwukhusela kwiindawo eziphefumlelweyo ze-ocean. Umbala obomvu ukhethwa ukudibanisa esibhakabhakeni nolwandle.