Intambo yensimbi ene-Prestressed ihlangabezane namashumi eminyaka yentuthuko kanye nokwenza ngcono kusukela ekukhiqizweni nasekusetshenzisweni kwayo kwezimboni ngawo-1920.Namuhla, kwakhiwe uchungechunge lwemikhiqizo ehlukile ukuze kuhlangatshezwane nezidingo ezihlukahlukene zokwakha.Lokhu kufaka phakathi izintambo ezibandayo, izintambo eziqondile, izintambo ezipholile eziphansi, izintambo zikathayela kanye nentambo yokufaka amaphuzu.Le mikhiqizo ehlukene, lapho isetshenziswa ekwenzeni izintambo zensimbi ezicindezelwe ngaphambili, isiphenduke izinhlobo ezisetshenziswa kakhulu zensimbi ene-prestressed emhlabeni.
Amandla aqinile wezintambo zensimbi zikakhonkolo ezicindezelwe ngaphambili ngokuvamile angaphezulu kuka-1470MPa, futhi izinga lawo lamandla lishintshile lisuka ikakhulukazi ku-1470MPa kanye ne-1570MPa laya ikakhulukazi ku-1670~1860MPa.Ububanzi bocingo bushintshile, kusukela ku-3-5 mm kuya ku-5-7 mm.Ukwanda kwamandla nobubanzi kuqinisekisa ukuzinza nokuthembeka kwezakhiwo zikakhonkolo eziqinisiwe.
Izintambo zikakhonkolo ezicindezelwe zisetshenziswa kakhulu embonini yezokwakha.Ukuqina kwayo okuphezulu nokuqina kwayo kuyenza ilungele ukuqinisa izinhlobonhlobo zezakhiwo zikakhonkolo ezifana namabhuloho, izakhiwo kanye nemigwaqo emikhulu.Yehlisa ngempumelelo ingcindezi eqinile kakhonkolo, yehlise imifantu futhi ithuthukise umthamo wokuthwala.Ukwengeza, ukusebenzisa kwayo izinto ezihlukahlukene kuyivumela ukuthi yenziwe kalula ukuze ihlangabezane nezidingo ezithile zokwakha.
Kafushane, ucingo lukakhonkolo olucindezelwe luyimpahla yokwakha yekhwalithi ephezulu enganikeza ukuqiniswa okuhle kakhulu kwezakhiwo zikakhonkolo ezicindezelwe.Ibanga lomkhiqizo nezici zalo kuqinisekisa ukuthi zonke izidingo zokwakha ziyahlangatshezwa.Ngamandla ayo aphakeme, ukuqina nokuguquguquka, isiphenduke into ekhethwayo embonini yezokwakha yomhlaba wonke.Kungakhathaliseki ukuthi isetshenziswa kumabhuloho, izakhiwo noma imigwaqo emikhulu, izintambo zikakhonkolo ezicindezelwe ngaphambili ziqinisekisa ubuqotho besakhiwo obuthuthukisiwe nokuhlala isikhathi eside.
Njengoba imboni yezimpahla zensimbi yaseChina ihola amabhizinisi, ukuhweba ngensimbi kazwelonke kanye nempahla "Ikhulu lebhizinisi elithembekile", amabhizinisi okuhweba ensimbi aseChina, "Amabhizinisi azimele aphezulu ayi-100 eShanghai". I-Shanghai Zhanzhi industry Group Co., Ltd., (ifushaniswe ngokuthi iZhanzhi Group ) ithatha i-"Itegrity, Practicality, Innovation, Win-Win " njengomgomo wayo owodwa wokusebenza, iphikelela njalo ekubekeni isidingo samakhasimende endaweni yokuqala.