He aha nā māka o nā bolts kūkulu kila

ʻOkoʻa ka hoʻohana ʻana i ka pahu kila e like me ka ikaika o ka hoʻohana ʻokoʻa o ka wahi, no laila pehea e hoʻoponopono ai i ka pae ikaika?
ʻO ka pae ikaika o nā bolts kūkulu kila:
ʻO ka pae ikaika o ka pahu kila no ka hoʻohui ʻana i ke kila he 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, a pēlā aku. nominal tensile ikaika waiwai a me flexion ratio o ke kila kila bolt mea.
No ka laʻana, nā kī kila kila o ka papa 4.6.ʻO ka manaʻo:
1, mea kila kila bolt material nominal yield ikaika o 400×0.6=240MPa grade performance grade 10.9 ikaika kiʻekiʻe steel structure bolt.
2. ʻO ka lākiō ikaika compressive o ke kila kila bolt mea he 0.6;
3, ke kila kila bolt mea nominal tensile ikaika a hiki i 400MPa;
Ma hope o ka mālama ʻana i ka wela, hiki i ka mea ke hoʻokō:
1, ke kila kila bolt material nominal yield ikaika o 1000×0.9=900MPa grade
2. ʻO ka lakio o ka ikaika buckling o ka bolt hale kila he 0.9;
3, ke kila hoʻolālā bolt material nominal tensile ikaika o 1000MPa;
ʻO ka manaʻo o ke kila kila bolt intensity grade ka pae honua, ka pahu kila o ka pae hana like, ʻaʻohe mea o kāna mea a me ka ʻokoʻa o ka hana ʻana, ua like kāna hana, koho i ka pae hana wale nō ma ka hiki ke hoʻolālā.
ʻO nā māka ikaika 8.8 a me 10.9 e pili ana i nā māka koʻikoʻi koʻikoʻi o nā bolts kūkulu kila 8.8GPa a me 10.9 GPa.
8.8 Nominal tensile ikaika 800N/MM2 Nominal yield ikaika 640N/MM2
Hōʻike ʻia ka pahu kila maʻamau e "XY", X * 100 = ka ikaika tensile o ka bolt hale kila, X * 100 * (Y/10) = ka ikaika o ka hoʻoulu ʻana o ka bolt hale kila (e like me ka mea i ʻōlelo ʻia ma ka lepili: yield ikaika / tensile ikaika = Y / 10), e like me 4.8, ka tensile ikaika o ke kila kila bolt mea:400MPa, hua ikaika:400*8/10=320MPa.
ʻO ka mea i luna aʻe ka ikaika o ka bolt kūkulu kila, ke hoʻohana nei mākou e like me ke ʻano ʻokoʻa e hoʻohana ai, i ka hale i hoʻohana ʻia ʻo ia ka pahu ikaika kiʻekiʻe.