Lokacin da aka fara tunanin Barbara Walker Crossing a cikin 2012, babban aikin sa shine kiyaye masu tafiya da masu gudu akan Titin Wildwood na Portland matsalolin gujewa cunkoson ababen hawa a Titin West Burnside.
Ya zama shaida ga kyakkyawan tsarin gine-gine, haɗakar amfani da kyau ga al'ummar da ke da ƙima (kuma ta buƙaci) duka biyun.
An kammala shi a watan Oktoba na 2019 kuma aka kaddamar da ita a wannan watan, gadar hanya ce mai tsayin kafa 180 wacce aka tsara ta lankwasa da kuma tsara ta don cudanya cikin dajin da ke kewaye.
Rushewar Kamfanin Portland Supreme Steel Company ne ya ƙirƙira shi a waje, an yanke shi zuwa manyan sassa uku, sannan aka kai shi da mota zuwa wurin.
Haɗuwa da buƙatun na gani da na gine-gine da ake nufi da amfani da kayan da za su cimma dukkan burin musamman na aikin, da fasaha da tsari.Wannan yana nufin yin amfani da bututu - a cikin wannan yanayin 3.5 ″ da 5″. corten (ASTM A847) Tsarin ƙarfe bututun ƙarfe wanda aka ƙera don tsarin da ke buƙatar welded ko haɗin haɗin gwiwa.
Ed Carpenter, mai zane-zane da zane-zane mai kwarewa a cikin manyan kayan aikin jama'a, ya ce yana da manufofi da yawa a zuciya lokacin da ya yi tunanin gada. Daga cikin su, ya kamata a haɗa gadar a cikin yanayin gandun daji, wanda shine ci gaba da jin dadi da kwarewa na hanyar, kuma ya kamata ya zama mai laushi da kuma bayyana yadda zai yiwu.
"Saboda ɗaya daga cikin mahimman manufofin ƙira na shine sanya gadar ta zama mai laushi kuma a bayyane, ina buƙatar kayan aiki mafi inganci da ingantaccen tsarin tsari mai yuwuwa - don haka, trusses mai ƙarfi guda uku," in ji Carpenter, wanda kuma mai son waje ne..Gudun kan babban tsarin sawu na Portland sama da shekaru 40.” Kuna iya gina shi daga wasu kayan, amma bututun ƙarfe ko bututun ƙarfe ne kawai zaɓi na ma'ana.
Daga wani m gini ra'ayi, cimma duk wannan ba sauki.Stuart Finney, a tsarin injiniya a Portland ofishin injiniya m KPFF da kuma tsohon gada aikin manajan, ya ce nasarar waldi duk aka gyara a TYK junctions inda duk goyon bayan bututu hadu shi ne mai yiwuwa ya fi wuya.Daya al'amari na dukan kokarin.Musamman, duk da tsanani daban-daban da nau'i-nau'i da ake bukata domin daban-daban nau'i-nau'i. s ga ƙungiyar gini.
“Gaskiya kowane haɗin gwiwa ya bambanta,” in ji Finney, wanda ya yi wannan sana’a tsawon shekaru 20.” Dole ne su sa kowane haɗin gwiwa ya zama cikakke ta yadda duk waɗannan bututun an haɗa su a kumburi ɗaya, kuma za su iya samun isassun walda a kusa da dukkan bututun.
Gadar masu tafiya ta Barbara Walker ta ratsa babban titin Burnside na Portland.Ya ci gaba da gudana a cikin Oktoba 2019.Shane Bliss
“Welds dole ne a canza gaba daya.Welding na iya zama ɗaya daga cikin mafi hadaddun sassa na masana'antu. "
Ferry ta namesake, Barbara Walker (1935-2014), ya kasance wani jigon na Portland ta kokarin kiyayewa na tsawon shekaru, kuma ta ke a bit na wani karfi na yanayi kanta.She ya taka rawar da wani aiki rawa a yawa jama'a ayyukan a Portland, ciki har da Marquam Nature Park, Pioneer Courthouse Square da Powell Butte Nature Park.She Har ila yau, ba gaji da abin da ya hada da Wild-Trail. da Bridge.
Kamar dai yadda Walker ya tara kusan dala 500,000 daga jama'a don dandalin Pioneer Courthouse ($15 a kowace dutse), gidauniyar Portland Parks Foundation mai zaman kanta ta tara dala miliyan 2.2 daga kusan gudummawar masu zaman kansu 900 don taimakawa gada gada. Birnin Portland, Portland Parks & Recreation da sauran ƙungiyoyi sun ba da gudummawar ragowar kusan dala miliyan 4.
Kafinta ya ce jujjuya yawancin muryoyi da muryoyin da ke kan aikin ya zama ƙalubale, amma yana da daraja.
"Ina tsammanin mafi mahimmancin kwarewa shine babban haɗin gwiwar al'umma, babban girman kai, da kuma haɗin kai - mutane suna biyan wannan," in ji Carpenter. "Ba kawai mutane ba, amma birane da gundumomi.Babban kokari ne na gamayya.”
Finney ya kara da cewa shi da tawagarsa, da kuma masana'antun da ke da alhakin kawo kayayyaki zuwa rayuwa, dole ne su shawo kan kalubale da yawa a cikin ƙirar 3D da suka yi, kawai saboda duk wasu matsalolin haɗin gwiwa da kayan aiki.
"Muna aiki tare da masu ba da bayanin mu don tabbatar da cewa duk samfuran sun yi layi domin kuma, babu damar yin kuskure tare da yawancin waɗannan haɗin gwiwa saboda sarkar da ke tattare da lissafi," in ji Finney. "Tabbas ya fi rikitarwa fiye da yawancin.Yawancin gadoji suna madaidaiciya, har ma masu lankwasa suna da lanƙwasa, kuma kayan suna da sauƙi.
“Saboda haka, akwai ɗimbin sarƙaƙƙiya da suka taso a cikin aikin.Tabbas zan ce ya fi rikitarwa fiye da na yau da kullun.Yana buƙatar aiki da yawa don kowa ya sami nasarar wannan aikin.”
Duk da haka, a cewar kafinta, daga cikin mahimman abubuwan da ke cikin sarƙaƙƙiyar gadar, abin da ke ba wa gadar tasirinta gabaɗaya shi ne bene mai lanƙwasa. Shin ya cancanci wahala a yi hakan? Mafi yawa, eh.
"Ina tsammanin kyakkyawan tsari yakan fara da amfani sannan kuma ya ci gaba zuwa wani abu," in ji Carpenter." Abin da ya faru ke nan akan wannan gada.Ina tsammanin a gare ni, abu mafi mahimmanci shine bene mai lankwasa.A wannan yanayin, a gaskiya ba na jin daɗi game da mashaya alewa saboda dukan hanyar ba ta da kyau kuma tana lanƙwasa.Ba na so in yi kaifi kaifi hagu a haye gadar sannan in yi kaifi hagu in ci gaba.
An ƙera gadar masu tafiya a ƙafa ta Barbara Walker a waje, an raba shi zuwa manyan sassa biyu, sannan aka kai shi da mota zuwa wurin da yake yanzu.Portland Parks Foundation.
“Yaya kike yin bene mai lankwasa?Da kyau, ya bayyana, ba shakka, ƙwanƙwasa guda uku yana aiki sosai a kan lanƙwasa.Kuna samun madaidaicin ma'aunin zurfin-zuwa-tsayi.Don haka, menene za ku iya yi da ƙwanƙwasa guda uku don sanya shi kyakkyawa da Kyau, kuma ku koma ga dajin ta hanyar da zai sa ya zama kamar ba zai iya zama a wani wuri ba?Fara da amfani, sannan matsa zuwa - menene kalmar?- zuwa ga fantasy.Ko daga aikace-aikace zuwa tunani .Wasu mutane na iya yin hakan ta wata hanya, amma haka nake aiki. "
Kafinta musamman ya yaba wa ma'aikatan KPFF saboda ya ba shi wasu kwarin gwiwa da yake bukata don aiwatar da bututun da ke ƙetare bene, wanda ya ba wa gadar wani yanayi na halitta, jin daɗi daga daji. Aikin ya ɗauki kusan shekaru bakwai daga farkon farawa zuwa babban buɗewa, amma Finney ya yi farin cikin samun damar kasancewa cikin sa.
Finney ya ce "Yana da kyau a sami wani abu da za a ba da wannan birni kuma ku yi alfahari da shi, amma kuma yana da kyau a magance ƙalubalen aikin injiniya," in ji Finney.
A cewar gidauniyar Portland Parks, masu tafiya a kasa kusan 80,000 ne za su yi amfani da gadar masu tafiya a kowace shekara, tare da ceton matsalar tsallaka wani bangare na titin da ke ganin motoci kusan 20,000 a rana.
A yau, gadar ta ci gaba da hangen nesa na Walker na haɗa mazauna Portland da baƙi zuwa kyawun yanayin yanayin yanayi.
"Muna buƙatar samar wa mutanen birni damar yin amfani da yanayi," Walker (wanda Cibiyar Kula da daji ta Duniya ta ambata) ya taɓa cewa.Ba za a iya koyan shi a cikin m.Ta hanyar sanin yanayin da idon basira, mutane suna da sha'awar zama masu kula da ƙasa."
Lincoln Brunner shi ne editan The Tube & Pipe Journal.Wannan shi ne karo na biyu na TPJ, inda ya yi aiki a matsayin edita na shekaru biyu kafin ya taimaka wajen kaddamar da TheFabricator.com a matsayin mai sarrafa abun ciki na FMA na farko.
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Ji daɗin cikakken damar yin amfani da bugu na dijital na Jaridar STAMPING, wanda ke ba da sabbin ci gaban fasaha, mafi kyawun ayyuka da labarai na masana'antu don kasuwar tallan ƙarfe.
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