Apo Barbara Walker Crossing payakatanga kunambwa muna 2012, basa rayo rekutanga raive rekusiya vafambi nevamhanyi paPortland's Wildwood Trail dambudziko rekunzvenga traffic muWest Burnside Road.
Yakave chirevo cheaesthetically conscious architecture, kusanganisa utility uye runako kunharaunda yaikoshesa (uye yaida) zvese.
Rakapedzwa muna Gumiguru 2019 uye rikavhurwa mwedzi mumwe chete iwoyo, bhiriji inzira yevanofamba netsoka-mamita 180-yakareba yakarongwa kukombama uye yakagadzirirwa kusangana musango rakatenderedza.
Yakagadzirwa kubva-saiti neiyo isingachashanda Portland Supreme Steel Company, yakachekwa kuita zvikamu zvikuru zvitatu, ndokuzotakurwa kuenda kunzvimbo iyi.
Kuzadzikisa zvinoonekwa uye zvemavakirwo zvinodiwa zvaireva kushandisa zvinhu zvaizozadzisa zvinangwa zvepurojekiti zvakanyanya zvakasiyana, zvese zvehunyanzvi uye zvechimiro.Izvi zvinoreva kushandisa mapaipi - pachiitiko ichi 3.5 ″ uye 5″.corten (ASTM A847) machubhu esimbi ekugadzira akagadzirirwa zvimiro zvinoda welded kana mabhaudhi mapipe anofananidzwa uye mamwe makiyi anofananidzwa nemasango anogona kuoneka. py.
Ed Carpenter, mugadziri uye muimbi anonyanya hunyanzvi hwekumisikidza veruzhinji, akati aive nezvinangwa zvakawanda mupfungwa paakabata zambuko. Pakati pazvo, zambuko rinofanirwa kubatanidzwa mumamiriro esango, inova kuenderera kwekunzwa uye ruzivo rwenzira, uye inofanirwa kuve yakapfava uye yakajeka sezvinobvira.
“Nemhaka yekuti chimwe chezvinangwa zvangu zvakakosha pakugadzira bhiriji chaive chekuita kuti zambuko rive rakapfava uye rive pachena, ndaida zvinhu zvinonyatsoshanda uye magadzirirwo akanyatsoita sezvaaigona—saka, matanda matatu,” anodaro Carpenter, anofarirawo zvekunze..Kumhanya panzira huru yePortland kweanopfuura makore 40.”Unogona kuigadzira uchishandisa zvimwe zvinhu, asi pombi dzesimbi kana kuti pombi inongova chisarudzo chine musoro.
Kubva pakuona kwekuvaka, kuita zvese izvi hazvisi nyore. Stuart Finney, injinjiniya muPortland hofisi yeinjiniya KPFF uye aimbove maneja wepurojekiti yebhiriji, akati zvakabudirira kupinza zvikamu zvese pamakona eTYK panosangana pombi dzese dzinotsigira pamwe ndiyo yakanyanya kuoma. Chimwe chikamu chekuedza kwese. boka rekuvaka.
“Chaizvoizvo mapfundo ose akasiyana,” anodaro Finney, uyo adzidzira basa racho kwemakore 20.” Vaifanira kugadzira majoini ose akanyatsokwana kuitira kuti pombi dzose idzi dzibatanidzwe pamwe chete panzvimbo imwe chete, uye kuti vakwanise kuwana masimbi akakwana papombi dzose.
Iyo Barbara Walker Kuyambuka bhiriji revanofamba netsoka inotenderera muPortland's high-traffic Burnside Road. Yakatanga kushanda muna Gumiguru 2019. Shane Bliss
"Welds inofanirwa kushandurwa zvachose.Welding inogona zvechokwadi kuva imwe yenzvimbo dzakaomesesa mukugadzira. ”
Ferry's namesake, Barbara Walker (1935-2014), anga ari musimboti wekuedza kuchengetedza kwePortland kwemakore, uye iye ane simba rezvakasikwa pachake.Akaita basa rinoshanda muzvirongwa zvakawanda zveveruzhinji muPortland, kusanganisira Marquam Nature Park, Pioneer Courthouse Square uye Powell Butte Nature Nature Park. Trail uye Bridge.
Sezvo Walker akasimudza mari inosvika zviuru mazana mashanu emadhora kubva kuruzhinji yePioneer Courthouse Square (madhora gumi nemashanu padombo repaving), iyo Portland Parks Foundation isingaite purofiti yakaunganidza madhora miriyoni mazana maviri nemazana maviri kubva pamipiro yakazvimirira ingangoita mazana mapfumbamwe ekubatsira mari yebhiriji.
Carpenter akati kusanganisa manzwi mazhinji nemanzwi pachirongwa ichi zvakanetsa, asi zvakakosha.
"Ini ndinofunga chiitiko chakakosha zvikuru kubatana kwenharaunda, kudada kukuru, uye kubatana kukuru - vanhu vari kubhadhara izvozvo," Carpenter akadaro.Kungoshanda pamwe chete kukuru.”
Finney akawedzera kuti iye nechikwata chake, uye vagadziri vane basa rekuita kuti magadzirirwo ave nehupenyu, vaifanira kukunda akawanda ematambudziko mu3D modelling yavakaita, nekuda kwekuoma kwese kwemajoini uye mafittings.
"Tiri kushanda nevatsananguri vedu kuti tive nechokwadi chekuti mamodheru anoenderana nekuti zvakare, hapana nzvimbo yekukanganisa kune akawanda emajoini aya nekuda kwekuoma kweiyo geometry," Finney akadaro.Mabhiriji mazhinji akatwasuka, kunyangwe akakombama ane macurves, uye zvinhu zvacho zviri nyore.
“Nekuda kwaizvozvo, pane zvakawanda zvishoma zvinonetsa zvinouya muchirongwa ichi.Ini zvechokwadi ndingati yakaoma kupfuura yenguva dzose [purojekiti].Zvinotora basa rakawanda kuti munhu wese aite kuti chirongwa ichi chibudirire.”
Zvisinei, maererano neMuvezi, pakati pezvinhu zvakakosha mukuoma kwebhiriji, chii chinoita kuti zambuko riite basa raro rose ndiro denga rakakombama. Zvinokosha here kunetsa kuita izvi? Zvizhinji, hongu.
“Ndinofunga kuti kugadzira kwakanaka kunowanzotanga nekushanda kwozoenda kune chimwe chinhu,” akadaro Carpenter.” Ndizvo chaizvo zvakaitika pabhiriji iri.Ini ndinofunga kwandiri, chinhu chinonyanya kukosha ndeye curved deck.Muchiitiko ichi, ini handisi kunyatsonzwa zvakanaka nezvesiwiti bar nekuti iyo nzira yese iri kutenderera uye inokotama.Ini hangu handidi kukona kucheuka nekuruboshwe kuchinjika zambuko wobva waita kukona kwekuruboshwe ndoramba ndichienda.
Bhiriji revanofamba netsoka reBarbara Walker rakagadzirwa kunze kwenzvimbo, rakakamurwa kuita zvikamu zviviri zvikuru, ndokuzotakurwa nerori kunzvimbo yariri ikozvino.Portland Parks Foundation.
“Unogadzira sei deki yakakombama?Zvakanaka, zvinozoitika, hongu, matatu-chord truss inoshanda chaizvo pane curve.Iwe unowana yakanakira kudzika-kusvika-span ratio.Saka, chii chaungaite netatu-chord truss kuti iite inoyevedza uye Runako, uye tarisa kusango nenzira inoita kuti riite sekunge haringave kumwe kumwe?Tanga nekuita, wozoenda wakananga - chii izwi?— kune fantasy.Kana kuti kubva pakuita zvinhu kusvika pakufungidzira .Vamwe vanhu vangazviita neimwe nzira, asi ndiwo chaiwo mashandiro andinoita.”
Carpenter anonyanya kutenda vashandi veKPFF nekumupa kurudziro yaaida kugadzira mapaipi kuseri kwedeki, izvo zvakaita kuti zambuko rive neruzivo rwakadzama kubva musango. Chirongwa ichi chakatora makore manomwe kubva pakutanga kusvika pakuvhurwa kukuru, asi Finney akafara kuwana mukana wekuva chikamu chacho.
"Zvakanaka kuva nechimwe chinhu chekupa guta rino uye kudada nacho, asiwo zvakanaka kugadzirisa dambudziko reinjiniya," Finney akadaro.
Sekureva kwePortland Parks Foundation, vanosvika zviuru makumi masere vanofamba netsoka vachashandisa zambuko rekufamba gore rega rega, kuchengetedza dambudziko rekuyambuka chikamu chemugwagwa unoona mota dzinosvika zviuru makumi maviri pazuva.
Nhasi, bhiriji rinoenderera mberi nechiratidzo chaWalker chekubatanidza vagari vePortland nevashanyi kune runako rwenzvimbo yakapoteredza.
“Tinofanira kupa vanhu vomumaguta mukana wokuwana zvisikwa,” Walker (akataurwa neWorld Forestry Center) akamboti.” Mufaro pamusoro pechisiko unobva pakuve panze.Haikwanise kudzidzwa muchidimbu.Nekuzvionera zvisikwa pachavo, vanhu vane chido chekuva vatariri veminda. "
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