Calculator Library
Professional civil and structural calculators — every result shows the governing equations, step-by-step substitution and the code clause it is based on.
Beam Weld Connection
รอยต่อเชื่อมคานเหล็ก — Double fillet weld on the beam web under eccentric shear — resultant force per unit length, required weld size, code min/max limits and six geometry checks.
Bolted Shear Connection
รอยต่อสลักเกลียวรับแรงเฉือน — Bearing-type lap or splice connection — bolt shear, bearing & tear-out, plate tension yielding and rupture, block shear, plus spacing and edge-distance checks.
On the roadmap
Planned calculators — not available yet.
Column Base Plate
แผ่นฐานเสาเหล็ก · AISC DG1
Base-plate thickness and concrete bearing under axial load, per AISC Design Guide 1.
Steel Beam Design
ออกแบบคานเหล็ก · AISC 360 / ว.ส.ท.
Flexure, shear and deflection checks for hot-rolled H-beams with lateral-torsional buckling.
RC Beam Design
ออกแบบคานคอนกรีตเสริมเหล็ก · ACI 318 / ว.ส.ท.
Flexural and shear reinforcement for rectangular RC beams (WSD / SDM).
Isolated Footing
ฐานรากเดี่ยว · ACI 318 / ว.ส.ท.
Footing size from allowable bearing, punching and one-way shear, and flexural steel.