ʻO ka hoʻomohala ʻana o nā PC Strands a me Prestressed steel products anchorage system

Ua holomua nui nā huahana kila prestressed mai ka makahiki 1950 o ke kenekulia i hala, aia ʻelua mau kumu nui i kāna huakaʻi hoʻomohala. ʻO ka mea mua, piʻi mālie ka ikaika o ka mea, no laila e hoʻemi i ka nui a me ke kaumaha o nā mea i hoʻopaʻa ʻia, a hoʻemi i ke kumukūʻai o ka papahana; ʻO ka lua, ma ke kumu o ka hoʻomaikaʻi ʻana i ka ikaika, pono mākou e hoʻolohe i ka hoʻomohala ʻana i nā mea me ka hana anti-corrosion kiʻekiʻe, i mea e hoʻomaikaʻi ai i ka lōʻihi o nā mea kila prestressed a mālama i nā kumukūʻai mālama.

E pili ana i ka ikaika kiʻekiʻe a me ka hoʻomaha haʻahaʻa, ua māhele ʻia kā lākou hana hoʻomohala ʻana i ʻehā mau ʻanuʻu: nā kaula kila maʻemaʻe a paʻa - nā kaula kila a me nā kaula hao ʻole - nā kaula hao i hoʻopaʻa ʻole ʻia - nā kaula kila epoxy. I nā ʻanuʻu mua ʻekolu o ka hoʻomohala ʻana, ua like like nā kiʻi hana heleuma i hoʻohālikelike ʻia me ke kaula kila; ʻO kona hoʻolālā, ka hana a me ka hana ʻana ua lilo i mea nui. ʻO ka pae ʻehā o ka hoʻomohala ʻana, ʻo ia hoʻi, epoxy steel strand, aia i kēia manawa ʻekolu ʻano o ka epoxy steel strand i ka mākeke honua a me ka home. ʻO kekahi he kaula hao epoxy wili wili hoʻokahi, ʻo ia hoʻi, ʻehiku mau uea kila i ke kaula kila i uhi ʻia me ka epoxy coating kaʻawale, a ʻo ka mānoanoa o ka uhi ʻana he lahilahi (ma kahi o 0.1 ~ 0.2mm); ʻO ka lua, ʻo ia ka epoxy i uhi ʻia i ke kaula kila, ʻo ia hoʻi, ua uhi ʻia ka ʻaoʻao o waho o ke kaula kila me ka epoxy coating, a ʻaʻohe epoxy resin e hoʻopiha ana i ke āpau ma waena o nā kaula kila, a ʻo ka mānoanoa o ka uhi epoxy waho. (e pili ana i 0.65~1.15mm); ʻO ke kolu, ʻo ia ke kaula hao epoxy i hoʻopiha ʻia, i hoʻopiha ʻia me ka resin epoxy ma ka ʻaoʻao o waho a ma ka ʻāʻī, a ʻo ia wale nō ke kaula hao epoxy e hoʻokō nei i nā kūlana ASTM A882 / A882M-04a a me ISO14655: 1999.

Hoʻomohala mālie ʻia ka ʻōnaehana hoʻopaʻa prestressed me ka hoʻomohala ʻana i ke kila prestressed, ʻaʻole hiki ke hoʻokaʻawale ʻia ʻelua. Me ka lohi o ka oʻo ʻana o ka epoxy coated steel strand ʻenehana, ua hoʻomohala ʻia a hoʻomaikaʻi ʻia kāna ʻōnaehana heleuma. Hoʻopili nā mea ʻelua i kekahi i kekahi, a ua hoʻohana ʻia i nā hana kūkulu alahaka ala nui e like me nā alahaka noho uwea, nā alahaka noho ʻāpana ʻāpana, prestressing waho, nā koʻokoʻo nakinaki alahaka a me nā pōhaku pōhaku.

ʻO Univac New Material Tech.Manufacturing Co., Ltd. he mea hana ʻoihana a me ka mea hoʻolaha i nā kaula kila prestressed kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, nā uea kila prestressed, nā kaula hao wela wela, nā kaula kila i hoʻopaʻa ʻole ʻia, nā kaula kila i uhi ʻia epoxy a ʻO kā lākou mau ʻōnaehana heleuma kākoʻo, ʻo ka maikaʻi o nā huahana kila prestressed piha piha i nā kūlana honua BS 5896:2012, FprEN 10138:2009, ASTM A416/416M:2012, ISO 14655:1999 "Epoxy Coated Steel Grain Wire for Prestressed Steel Grain Wire for Prestressed Steel Grain Wire" o ka American standard ASTM A882/A882M-04a "Standard Specification for Filled Epoxy Coated Seven Wire Prestressed Steel Strands"; Ua hoʻomohala maikaʻi ka ʻōnaehana heleuma i ka ʻōnaehana hoʻopaʻa uea, ka ʻōnaehana hoʻopaʻa ʻana no kekahi mau alahaka i hoʻopaʻa ʻia, ka ʻōnaehana prestressing waho, ka ʻōnaehana hoʻopaʻa alahaka a me ka ʻōnaehana hoʻopaʻa geotechnical, i hoʻohana ʻia i nā papahana he nui.