Hiki ke kapa ʻia nā bolts me ke kila ikaika kiʻekiʻe, a i ʻole nā bolts e koi ana i ka ikaika preload nui. Hoʻohana nui ʻia nā bolts ikaika kiʻekiʻe no ka hoʻopili ʻana i nā Bridges, nā kaʻaahi, ke kiʻekiʻe kiʻekiʻe a me nā mea hana kiʻekiʻe kiʻekiʻe. ʻO ka haʻihaʻi o ia mau bolts ka hapa nui o ka haki. No nā bolts ikaika kiʻekiʻe i hoʻohana ʻia i nā mea hana ultrahigh pressure, i mea e hōʻoia ai i ka hoʻopaʻa ʻana o ka pahu, koi ʻia kahi prestress nui.
ʻO ka ʻokoʻa ma waena o nā bolts kiʻekiʻe a me nā bolts maʻamau:
Hana ʻia nā mea o nā bolts maʻamau me Q235 (ie A3).
ʻO ka mea o nā bolts kiʻekiʻe he 35 # kila a i ʻole nā mea kiʻekiʻe kiʻekiʻe, i mālama ʻia ka wela ma hope o ka hana ʻana e hoʻomaikaʻi i ka ikaika.
ʻO ka ʻokoʻa ma waena o nā mea ʻelua ka ikaika o ka mea.
Mai nā mea maka:
Hana ʻia nā bolts ikaika kiʻekiʻe i nā mea ikaika kiʻekiʻe. ʻO ka wili, ka nut a me ka mea holoi o ka pahu ikaika kiʻekiʻe i hana ʻia me ke kila ikaika, hoʻohana maʻamau ʻia 45 kila, 40 boron kila, 20 manganese titanium boron kila, 35CrMoA a pēlā aku. Hana ʻia nā kī maʻamau me ke kila Q235(A3).
Mai ka pae ikaika:
Hoʻohana mau ʻia nā bolts kiʻekiʻe i ʻelua mau māka ikaika o 8.8s a me 10.9s, a ʻo 10.9 ka hapa nui. He haʻahaʻa ka pae ikaika bolt maʻamau, maʻamau 4.8, 5.6.
Mai ka manaʻo o nā hiʻohiʻona ikaika: hoʻoikaika nā bolts kiʻekiʻe ma mua o ka hoʻopaʻapaʻa a hoʻololi i ka ikaika o waho e ka friction. ʻO ka pilina paʻa maʻamau e hilinaʻi i ka pale ʻana i ka pale a me ke kaomi o ka pā puka e hoʻoneʻe i ka ikaika shear, a ʻo ka pretension i hana ʻia i ka wā e hoʻopaʻa ʻia ai ka nut he liʻiliʻi, hiki ke nānā ʻole ʻia kona mana, a ʻo ka bolt ikaika kiʻekiʻe i hoʻohui ʻia i kona ikaika kiʻekiʻe. he pretension nui ma ka bolt, no laila ke kaomi extrusion ma waena o nā lālā pili, i nui ka friction perpendicular i ke kuhikuhi o ka wili. Eia kekahi, ʻo ka pretension, anti-slip coefficient a me ke ʻano o ke kila e hoʻopili pololei i ka hiki ke hāpai i nā bolts kiʻekiʻe.
E like me nā hiʻohiʻona ikaika, hiki ke hoʻokaʻawale ʻia i ke ʻano kaomi a me ke ʻano friction. ʻOkoʻa nā ʻano helu ʻelua. ʻO ka haʻahaʻa haʻahaʻa o nā bolts ikaika kiʻekiʻe ʻo M12, hoʻohana maʻamau ʻo M16 ~ M30, ʻaʻole paʻa ka hana o nā bolts oversized, a pono e hoʻohana pono i ka hoʻolālā.
Mai kahi o ka hoʻohana ʻana:
ʻO ka pilina paʻa o nā mea nui o ka hoʻolālā hale e hoʻopili pinepine ʻia e nā bolts ikaika kiʻekiʻe. Hiki ke hoʻohana hou ʻia nā bolts maʻamau, ʻaʻole hiki ke hoʻohana hou ʻia nā bolts kiʻekiʻe. Hoʻohana mau ʻia nā bolts ikaika kiʻekiʻe no nā pilina paʻa.
Ka manawa hoʻouna: Oct-25-2024
