Calculators

Every calculator shows its full working, cites the provision behind each step, and states plainly what it does not check. Calculation is free and always will be.

9 of 9 calculators

• Structural AnalysisBeam Bending Moment, Shear and Deflection CalculatorReactions, shear and bending moment diagrams and elastic deflection for a single-span beam, across thirteen standard load cases — simply supported, cantilever, fixed at both ends and propped cantilever.Statics
• Reinforced ConcreteConcrete Beam Deflection CheckerImmediate and long-term deflection of a simply supported reinforced concrete beam, using the cracked effective stiffness, checked against the limit for the member category you choose.ACI 318-08
• Reinforced ConcreteRC Beam Detailing from ETABS — Bars, Cutoffs and SMRF/IMRF Hoops, Drawn and Checked to ACI 318Reads a continuous beam's design straight from ETABS through the bridge — every span's required steel, the columns at its supports, Vg and Pu — and details it: continuous and extra bars with their cutoffs, SMRF or IMRF hoops, the capacity-design shear and the full compliance checklist, drawn as a long section with sections, ready for DXF.ACI 318-08ACI 318-19
• Reinforced ConcreteColumn Schedule from ETABS — Bars, Ties and Hoops for Every Column, Drawn and Exported to DXFReads every column's required steel from ETABS — live or from the Concrete Column Design Summary — groups the stories as you draw them on a long section, picks the bars and the IMRF or SMRF ties for rectangular, L and T columns, and draws the reinforcement schedule, ready to export to DXF or print as a rebar table.ACI 318-08
• Materials & QuantitiesConcrete Test Cylinder CalculatorHow many strength test sets and cylinders a pour requires, and whether the results that came back satisfy the acceptance criteria.ACI 318-08BNBC 2020
• Materials & QuantitiesConcrete Volume CalculatorConcrete quantity for slabs, footings, beams and rectangular or circular columns, with a waste allowance and a bag count for small pours.Quantities
• Foundations & GeotechnicalIsolated Column Footing DesignBiaxial soil pressure with lift-off, overturning and sliding, one-way shear, punching shear with moment transfer about both axes on an edge-aware perimeter, flexure with the short-direction band, anchorage, and the column's bearing on the footing — for a single rectangular spread footing, by ACI 318-08 or ACI 318-19. Designs for your own load cases, combined by BNBC 2020, ASCE 7-05 or ASCE 7-16 (wind, orthogonal earthquake), for ETABS combinations, or both.ACI 318-08ACI 318-19BNBC 2020ASCE 7-05ASCE 7-16
• Foundations & GeotechnicalPile Cap DesignRigid-cap pile reactions for every ETABS combination, punching at every pile (CRSI corner and paired piles) and pedestal (wall and core shapes too), one-way shear, flexure with bar selection, bar development and hooks, top steel between columns and design strips, for a 1-8 column cap by ACI 318-08 or 318-19; CRSI's deep-cap checks at the column face and one-way shear at corner piles as options.ACI 318-08ACI 318-19
• Reinforced ConcretePunching Shear Check with Column Moment — Two-Way Shear, Moment Transfer and the Depth RequiredChecks punching at a column of a flat slab, footing or mat with the column's P, M2 and M3 — interior, edge or corner — and finds the effective depth it needs. Reads the column's size, materials and every combination's forces from ETABS, and draws the shear stress around the critical section in 3D.ACI 318-19ACI 318-08