Onse mndandanda wa mwamakonda kagwere

Gulu la magwiridwe antchito a bolt limapangidwa ndi zigawo ziwiri, zomwe zimayimira mphamvu yolimba ya bolt ndi kuchuluka kwa zokolola. Mwachitsanzo, tanthauzo la mabatani omwe ali ndi magwiridwe antchito a 4.6 ndi: nambala yomwe ili gawo loyambirira (4 mu 4.6) ndi 1/100 yamphamvu yolimba (n / mm2) yazitsulo, ndiye kuti, Fu ≥ 400N / mm2; Chiwerengero chachigawo chachiwiri (6 mu 4.6) ndi nthawi khumi zakukolola kwa bolt, ndiye kuti, FY / Fu = 0.6; Zogulitsa zamanambala awiri (4) × 6 = "24") ndi 1/10 yamalo omwe amatulutsa zokolola (kapena mphamvu yokolola) (n / mm2) yazitsulo, ndiye kuti, FY ≥ 240n / mm2.

Malinga ndi kulondola kwakapangidwe kake, mabatani wamba azitsulo amatha kugawidwa m'magulu atatu: A, B ndi CA Gawo B ndiyabwino, yomwe imagwiritsidwa ntchito popanga makina, ndipo kalasi C ndiyabwino. Pokhapokha ngati tafotokozapo, ma bolts wamba azitsulo nthawi zambiri amakhala ma bolts owerengeka a C okhala ndi magwiridwe antchito a 4.6 kapena 4.8.