Nhọpụta na okwu okwu
• Na United States,Steel I beamA na-akọwakarị s site na iji omimi na ịdị arọ nke osisi.Dịka ọmụmaatụ, ogwe ọkụ "W10x22" dị ihe dịka 10 na (25 cm) n'ime omimi (ọnụ ọnụ elu nke I-beam site na ihu ihu nke otu flange na ihu ihu nke flange ọzọ) ma tụọ 22 lb / ft (33). n'arọ / m).Ekwesiri ighota na ngalaba flange sara mbara na-adịkarị iche na omimi nke aha ha.N'ihe banyere usoro W14, ha nwere ike ịdị omimi dịka 22.84 na (58.0 cm).
• Na Meksiko, a na-akpọ ígwè I-beams IR ma na-akọwakarị ya site na iji omimi na ịdị arọ nke osisi ahụ na usoro metric.Dịka ọmụmaatụ, ogwe ọkụ "IR250x33" dị ihe dịka 250 mm (9.8 na) n'ime omimi (ịdị elu nke I-beam site na ihu ihu nke otu flange na ihu ihu nke flange ọzọ) ma tụọ ihe dịka 33 kg / m (22). lb/ft).
Otu esi atụ:
Ogo (A) X Weebụ (B) X obosara Flange (C)
M = Steel Junior Beam ma ọ bụ Bantam Beam
S = StandardSteel I beam
W = Flange Beam Standard Wide
H-Pile = H-Pile Beam