EngineerHub category // Civil & Structural
Civil & Structural Engineering
Calculate loads, member response, concrete quantities, reinforcement and earthworks, and explore structural dynamics through visual simulations and case studies.
12 calculator / tools1 interactive simulator3 study materials8 case studys22 pages total
The civil and structural collection combines everyday preliminary calculations with educational models of structural behaviour. It covers beams and columns, concrete, reinforcement, wind loading, soils and earthworks, and links those fundamentals to interactive examples of resonance, vibration and major engineering case studies.
Choose a tool below by purpose. Individual pages include their own assumptions, equations, references and limitations where applicable.
Calculators & tools
12 pages
Beam & Column CalculatorFree beam and column calculator for structural engineering. Calculate bending moment, bending stress, beam deflection and Euler buckling load using standard engineering equations.→Cold-Weather Concrete Protection & Heating CalculatorCalculate resulting concrete mix temperature from component weights and temperatures (ACI 306 heat balance), and estimate heat loss from placed concrete during cold-weather protection.→Concrete Maturity and Strength Development CalculatorCalculate a Nurse–Saul temperature-time factor from a concrete temperature history and explore an illustrative two-point logarithmic strength–maturity fit.→Concrete Mix CalculatorEstimate cement bags, sand, aggregate and water for a nominal concrete mix in SI or US units. Includes adjustable mix ratio and dry-volume factor.→Concrete Volume CalculatorCalculate concrete volume for slabs, walls, footings and round columns in cubic metres, cubic feet and cubic yards, including waste.→Dead Load CalculatorCalculate floor, roof or wall dead load from material layers. Get results in kPa, psf, mass per area and total permanent weight.→Excavation & Earthwork CalculatorCalculate excavation and loose earthwork volume for rectangular cuts, trenches and sloped pits in cubic metres or cubic yards, including swell.→Rebar Weight CalculatorCalculate reinforcing-bar weight from bar size, quantity and length. Supports metric diameters, US rebar numbers, kilograms and pounds.→Slope CalculatorCalculate slope percentage, angle, rise-to-run ratio and sloped length from vertical rise and horizontal run in metres or feet.→Soil Compaction Calculator (Proctor Test)Calculate dry density for Proctor test points, identify maximum dry density and optimum moisture content, and check field percent compaction.→Wind Load CalculatorEstimate wind pressure and force on signs, walls, panels and other exposed surfaces from wind speed, area and pressure coefficient in SI or US units.→
Interactive simulators
1 page
Study materials
2 pages
Concrete PropertiesConcrete engineering properties for Normal-weight concrete · f′c ≈30 MPa reference: density, Young's modulus, Poisson ratio, strengths, thermal conductivity, specific heat, thermal…→Learn Structural EngineeringA complete educational structural engineering guide: loads, stress and strain, beams and deflection, columns and buckling, connections, and lessons from real structural failures.→
Case studies
7 pages
Hyatt Regency Connection Design FailureInteractive Hyatt Regency collapse case study with hanger-rod load paths, box-beam failure, NBS findings, design review breakdown and lessons learned.→Tacoma Narrows Bridge Flutter Case StudyInteractive Tacoma Narrows Bridge collapse case study: wind observations, torsional flutter, deck aerodynamics, failure timeline, visuals and lessons.→Burj Khalifa — What Went Right?Interactive Burj Khalifa case study covering the buttressed core, wind shaping, piled foundation, concrete construction and engineering lessons learned.→Falkirk Wheel Engineering Case StudyInteractive engineering case study of the Falkirk Wheel. Test Archimedes' principle, change boat mass and imbalance, rotate the wheel, explore the level-keeping gear concept, and see why…→Hoover Dam: what went rightInteractive engineering case study of Hoover Dam construction: river diversion, mass-concrete cooling, logistics, schedule performance, what went right, and transferable project lessons.→Shanghai Tower Twisting Form Case StudyInteractive engineering case study of Shanghai Tower's 120° twisting, tapered form: wind-tunnel optimization, vortex shedding, core-outrigger-mega-frame structure, double-skin façade,…→Taipei 101 Tuned Mass DamperInteractive engineering case study of Taipei 101's 660-tonne tuned mass damper. See why a giant moving mass can reduce skyscraper sway, tune the damper, compare motion with and without it,…→