Tower / Tank / Silo Designer

Three modes: a liquid tank (hydrostatic pressure & hoop tension → shell thickness or hoop steel), a silo (Janssen lateral, vertical & wall-friction pressures), and a tower (overturning stability, base eccentricity & hold-down anchorage under a lateral force).

⭐ Free to design · Balance … EP

⚠️ Educational tool — verify against the governing code. Tanks (ACI 350 / API 650), silos (ACI 313 / DIN 1055 / Janssen), towers (NSCP wind & foundation). Confirm material allowables, factors of safety, dynamic/seismic effects and detailing against the code and your instructor.

Fluid unit weight γ (kN/m³)

Liquid height H (m)

Tank diameter D (m)

Wall material

σ_allow / f_s (MPa)

Depth of interest z (m) opt.

Material unit weight γ (kN/m³)

Silo diameter D (m)

Depth z (m)

Wall friction μ = tanφ_w

Lateral ratio k

k or φ (°)

Lateral force F (kN)

Height of F above base h_F (m)

Self-weight W (kN)

Base width B (m, wind dir.)

Base length L_b (m) opt.

Anchor bolts per windward side

Tip: a wind force = pressure q (kPa) × exposed area A (m²). Enter the resultant F and its height of action h_F.

🗼 Results

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Tower / Tank / Silo Designer

🗼 Results

Worked solution