Back to Statics Of Rigid Bodies repository

Stability and tipping2D

Simplified retaining-wall stability

Locate base resultants and distinguish full contact, kern exceedance, uplift, sliding, and complete tipping.

Open the complete lesson

Advanced engineering statics simulation

Statics Stability and Tipping Suite

Rigid-body equilibrium with explicit load locations, base contact, sliding, and overturning checks; not a design-code check.

Simulation

Apply a lateral resultant at one-third of the wall height and compare sliding, contact, and overturning.

Wall weight300 kN

kN

40–800

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Base width3.0 m

m

0.8–8.0

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Lateral earth-pressure resultant60 kN

kN

0–300

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Wall height (resultant at H/3)2.0 m

m

0.3–12.0

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Base friction coefficient0.45

0.10–0.90

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

full contactExplicit load-location equilibrium

Eccentricity

0.133 m

Kern 0.500 m

Net center moment

40.00 kN·m

Overturning FS

11.25

Moments about tipping toe

Sliding FS

2.25

Capacity 135.0 kN

e=\frac{M_{center}}{\sum V},\qquad |e|\leq\frac{B}{6}

Vertical loads contribute according to their signed horizontal offsets. Loads outside the toe can add overturning moment.

Model scope and verification

Scope: Educational rigid-body statics model using the selected geometry, stated idealizations, and displayed SI units.

Acceptance check: Check the governing equilibrium, compatibility, geometry, or limiting-condition statement before accepting the numerical result.

Rigid block under horizontal load Platform with moving vertical load Crane load and counterweight Resultant-within-base visualizer