Structural Engineering Calculators

Design members and connections in concrete, steel, wood, and masonry; combine loads per current standards; and check serviceability and stability. Each tool shows formulas, factors, and intermediate results you can trace.

Loads & Combinations (ASCE 7-22)

Load Combination Calculator

ASD & LRFD combos with governing case.

Dead Load Calculator

Common materials & assemblies.

Live Load Calculator

Occupancy-based floor & roof loads.

Wind Load (MWFRS)

Main system pressures by exposure.

Wind Load (C&C)

Zone pressures for components & cladding.

Seismic Design

Design spectra from SS, S1 & site class.

Reinforced Concrete (ACI 318)

Beam Flexure

ϕMn for singly/doubly reinforced beams.

Beam Shear

Concrete + stirrups; ϕVn checks.

Punching Shear (Slabs)

Two-way shear at columns/openings.

Column Design

Axial-flexure interaction capacity.

Dev. Length (Tension)

ld with size/coating/location factors.

Dev. Length (Compression)

Anchorage for bars in compression.

Footing Design

One-way, two-way shear & bearing.

Crack Width (EC2)

Service crack control per EC2.

Structural Steel (AISC)

Steel Beam Design

Flexure, shear & deflection checks.

Steel Column Design

Axial capacity & buckling.

Base Plate Design

Plate thickness, bearing, anchors.

Bolted Connection

Shear, bearing & tear-out.

Welded Connection

Fillet/groove weld capacities.

Composite Beam

Stud count & composite strength.

Open Web Joist (K)

Span/load checks for K-series.

Crane Runway Beam

Fatigue & LTB considerations.

Section Properties

I, S, Z, r for common shapes.

Wood (AWC NDS)

Wood Beam

Bending, shear & deflection with factors.

Wood Column

Axial capacity & slenderness.

Bolted Connection

Z-values & patterns.

Nailed Connection

Withdrawal & lateral capacities.

Masonry Design

Masonry Wall

Flexure, shear & axial (ASD).

Masonry Lintel

Openings with bearing checks.

Shear Wall

In-plane shear & overturning.

Masonry Column

Axial capacity & slenderness.

Member Analysis & Serviceability

Beam Deflection

Common load cases & superposition.

Buckling Load (Euler)

Critical load with end conditions.

Plate Bending (FEA)

Thin plate deflection & stress.

Influence Lines

Shear/moment influence functions.

Mohr’s Circle

Stress transformation & τmax.

Thermal Stress

Constrained ΔT effects.

Eurocode Design (EC2/EC3/EC4/EC5/EC6/EC8)

EC2 Beam Flexure

Bending design per EN 1992-1-1.

EC2 Beam Shear

VRd,c & VRd,s checks.

EC2 Punching Shear

vEd vs. vRd,c,vRd,max.

EC2 Column

Interaction N-M design.

EC2 Anchorage & Laps

lb,net & lap splices.

EC3 Steel Beam

Class, bending & shear resistance.

EC3 Steel Column

χ·A·fy buckling resistance.

EC3 Bolted Joints

Shear/bearing slip-resistant.

EC4 Composite Beam

Studs & composite resistance.

EC4 Composite Column

Composite column capacity.

EC5 Timber Beam

kmod, kdef & ULS/SLS checks.

EC5 Timber Column

Axial capacity & buckling.

EC6 Masonry Wall

Compressive & bending design.

EC6 Masonry Shear

In-plane shear resistance.

EC8 Inter-Storey Drift

Drift limits & checks.

EC8 Capacity Design

Strong-column/weak-beam rules.

Standards note

These tools summarize common provisions from major codes. Always confirm load cases, partial factors, resistance factors, material grades, and jurisdictional amendments valid for your project.