Duk nau'ikan lissafin ƙididdiga na ƙarfe, ƙarfe ƙarfe, I-beam…

Matsakaicin lissafin ƙididdiga na Rebar

Formula: diamita mm × diamita mm × 0.00617 × tsawon m

Misali: Rebar Φ20mm (diamita) × 12m (tsawon)

Lissafi: 20 × 20 × 0.00617 × 12 = 29.616kg

Ƙarfe mai nauyi dabara

Formula: (diamita na waje - kauri na bango) × kauri bango mm × 0.02466 × tsawon m

Misali: bututun karfe 114mm (diamita na waje) × 4mm (kaurin bango) × 6m (tsawo)

Lissafi: (114-4) × 4 × 0.02466 × 6 = 65.102kg

Ƙarfe mai nauyi dabara

Formula: Nisa na gefe (mm) × kauri (mm) × tsayi (m) × 0.00785

Misali: lebur karfe 50mm (nisa nisa) × 5.0mm (kauri) × 6m (tsawon)

Lissafi: 50 × 5 × 6 × 0.00785 = 11.7.75 (kg)

Ƙarfe farantin nauyin lissafin dabara

Tsarin tsari: 7.85 × tsayi (m) × nisa (m) × kauri (mm)

Misali: farantin karfe 6m (tsawo) × 1.51m (nisa) × 9.75mm (kauri)

Calculation: 7.85×6×1.51×9.75=693.43kg

Madaidaicin kusurwa karfe nauyi dabara

Formula: Nisa na gefe mm × kauri × 0.015 × tsayi m (m lissafin ƙididdiga)

Misali: kusurwa 50mm × 50mm × 5 kauri × 6m (tsawo)

Lissafi: 50 × 5 × 0.015 × 6 = 22.5kg (tebu na 22.62)

Ƙarfe nauyi dabarar kusurwa mara daidaituwa

Formula: (faɗin gefe + faɗin gefe) × lokacin farin ciki × 0.0076 × tsayi m (m lissafi)

Misali: kusurwa 100mm × 80mm × 8 kauri × 6m (tsawo)

Lissafi: (100 + 80) × 8 × 0.0076 × 6 = 65.67kg (Table 65.676)