El concreto llena las canales de la lámina solo en parte, así que largo × ancho × espesor pide de más. Aquí se calcula el volumen real según el perfil de la lámina.
Calculadora de concreto sobre lámina metálica
8.80 CY= 396 bolsas de 80 lb
- Área
- 600.00 SF
- Losa de concreto sobre lámina metálica
- 8.80 CY
- Bolsas de 80 lb
- 396 bolsas
- Peso del concreto (110 lb/ft³)
- 26,125 lb (13.06 toneladas)
- Hojas de malla (5' 0" × 10' 0", traslape de 10")
- 20 hojas
Vulcraft 3VLI (lámina de 3") · 20 ga
Estos croquis son para ayudarte a pedir material y cotizar el trabajo rápido. No son planos de ingeniería ni de taller — construye siempre con los planos aprobados del proyecto.
Corte a través de las canales. Toca cualquier medida para cambiarla. El ancho de la canal se mide del lado del concreto.
Malla electrosoldada
Estos croquis son para ayudarte a pedir material y cotizar el trabajo rápido. No son planos de ingeniería ni de taller — construye siempre con los planos aprobados del proyecto.
Las líneas finas son los alambres de 6", las oscuras las orillas de cada hoja y lo azul los traslapes (dos hojas una sobre otra). La última hoja de cada fila se corta en la orilla.
Losa
Lámina metálica
Elige tu lámina, o escribe cualquier medida para usar la tuya.
Calibre de la lámina (espesor del acero)ConcretoMalla electrosoldada
Hojas de 5' 0" × 10' 0" con traslape de 10". El mínimo de ACI es un cuadro de malla + 2 in (8" para malla 6×6). Si tu ingeniero pide otro traslape, escríbelo. Fuente
Ajustes▾
No se agrega desperdicio a menos que lo escribas. Bolsas de 80 lb por defecto.
Tamaño de bolsa
Ver las cuentas▾
- ÁreaA = L × W30' 0" × 20' 0" = 600.00 SF
- Llenado de la canalf = (flute top + flute bottom) ÷ 2 ÷ rib spacing( 7-1/4" + 4-3/4" ) ÷ 2 ÷ 1' 0" = 0.500
- Espesor promediod = (total − deck) + deck × f3-1/4" + 3" × 0.500 = 4-3/4"
- Volumen de concretoV = A × d600.00 SF × 4-3/4" = 237.50 ft³
- Bolsas de 80 lbBags = ⌈V ÷ bag yield⌉237.50 ft³ ÷ 0.60 ft³ = 396
- PesoW = V × 110 lb/ft³237.50 ft³ × 110 lb/ft³ = 26,125 lb
- Mesh sheet coveragec = (sheet width − lap) × (sheet length − lap)( 5' 0" − 10" ) × ( 10' 0" − 10" ) = 38.19 SF
- Mesh sheets along the lengthn = ⌈(run − lap) ÷ (sheet − lap)⌉⌈( 30' 0" − 10" ) ÷ ( 10' 0" − 10" )⌉ = 4
- Mesh sheets across the widthn = ⌈(run − lap) ÷ (sheet − lap)⌉⌈( 20' 0" − 10" ) ÷ ( 5' 0" − 10" )⌉ = 5
- Mesh sheetssheets = along × across4 × 5 = 20
- Without laps, for comparisonwhole sheets ⌈run ÷ sheet⌉ each way, no laps20 with laps − 8 added by laps = 12
De dónde salen los números
- Vulcraft deck sizes: Composite 1.5VL, 1.5VLR, 2VLI, 3VLI · form deck 1.0C-36, 1.5C, 2C · dovetail 2.0D, 3.5DVulcraft Deck Solutions 2026 (LRFD), "Nominal Dimensions" drawing on each deck page.Fuente
- Canam deck sizes: Composite 1.5BL, LF2, LF3 · form deck P-3012US technical data sheets (LRFD/ASD), "Dimensions" drawing. P-3012: https://www.canam.com/en/product/form-deck/. P-3012's flute bottom isn't printed; 1" matches Canam's dead-load table. Other makers (New Millennium, ASC, Verco…) sell similar 1-1/2", 2" and 3" decks — pick Custom and type the sizes off your submittal.Fuente
- Concrete volume on deck: Average depth = cover above deck + deck depth × (flute top + flute bottom) ÷ 2 ÷ rib spacingMatches Vulcraft's "Theoretical Concrete Volume" tables exactly (e.g. 3VLI at 5" total = 1.08 yd³/100 ft², 2.0D at 4" = 1.12, 3.5D at 5-1/2" = 1.44), and lands 0–1.5% above Canam's deck + concrete weights, because Canam also takes out the steel's own thickness. Like Vulcraft, this leaves out the steel thickness (under 1.5%, on the safe side) and the extra concrete when the deck sags under the wet pour — cover that in waste. Vulcraft's 2026 1.5VLR volume table repeats the 1.5VL numbers; its concrete + deck weight column (37.5 psf at 3-1/2") agrees with this formula (0.92 yd³/100 ft²) instead.Fuente
- Cross-check: SDI and other makers: SDI 3x12 deck: 6" = 1.39, 6-1/2" = 1.54, 7-1/2" = 1.85 yd³/100 SF · 2x12: 4-1/2" = 1.08Steel Deck Institute, Weights and Volumes of Steel and Concrete (2026), Tables 2A/2B; same values as Vulcraft. ASC and New Millennium list the same 3" numbers; their 1-1/2" and 2" decks differ by up to 2% because the profiles differ — so pick your actual deck or type its sizes. None of them include extra concrete for deck deflection.Fuente
- Deck steel thickness: 22 ga 0.0295" · 20 ga 0.0358" · 19 ga 0.0418" · 18 ga 0.0474" · 16 ga 0.0598"Design base-metal thickness from the section-property tables. SDI uses the same values. Canam lists nominal 0.030", 0.036", 0.047", 0.060".Fuente
- Bagged concrete yield: 50 lb = 0.375 ft³ · 60 lb = 0.45 ft³ · 80 lb = 0.60 ft³QUIKRETE 5000 High Early Strength Concrete Mix data sheet, "Yield". Regular QUIKRETE Concrete Mix 1101 gives the same 0.45 and 0.60 ft³. All three are 0.0075 ft³ per lb, so a bag weight you type is figured at that rate (e.g. 40 lb = 0.30 ft³). High-yield mixes (e.g. Sakrete Maximizer, 0.92 ft³ per 80 lb) differ — check the bag.Fuente
- Weight of concrete: Normal weight 140 lb/ft³ · lightweight 110 lb/ft³Normal weight: QUIKRETE 5000 data sheet, Table 1 (approximately 140 lb/ft³; ready-mix is often 145–150). Lightweight: the 110 lb/ft³ Vulcraft uses in its deck-slab tables (Canam uses 115). Check your mix ticket.Fuente
- Cubic yard: 1 CY = 27 ft³ = 0.764555 m³Exact by definition: 1 ft = 0.3048 m.
- Welded wire mesh lap: 10 in by default (ACI minimum: one mesh square + 2 in = 8 in for 6×6 mesh) · sheets 5' × 10'ACI 318-19 §25.5.4 (plain welded wire in structural slabs) and ACI 439.5R-18 §6.4 both give one square plus 2 in, as summarized by ASCC (Jan 2021); 10 in is more than that minimum. 6×6-W1.4×W1.4 is the usual minimum temperature mesh on composite deck (SDI). Your engineer may call for a different lap — type it in. Sheets are counted laid the way that takes fewer, with no offcuts reused; counted by area, offcuts are assumed reused, so order extra.Fuente
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