8/10/2019 Pad Footing With Moment

1/2

PAD FOOTINGS SUBJECTED TO MOMENTS

Project RUMAH DAYAK

Crane Loadings

Unfactored Overturning Moment 10,120 kNm

Unfactored Vertical Load 4,260 kN

Trial Footing

Length 7.5 m

Width 7.5 m

Depth 3.3 m

Footing Weight 4455 kN

Check Overturning

Eccentricity, e 1.16 m

Check Bearing Pressure

Max. Pressure 298.9 kPa

Min. Pressure 11.0 kPa

Final Footing Size

Resultant Inside Middle Third - OK

Bearing Pressures Within Allowable Limits - OK

USE 7.5m x 7.5m x 3.3m PAD FOOTING

8/10/2019 Pad Footing With Moment

2/2

TOWER CRANE INFORMATION

Model Potain E2/23b

Height Under Hook 13 m

Jib Length 45 m

Tip Load 2.3 tons

Mast Dimension 1.6 m

Unfactored Overturning Moment

In service 1012 t-m

Out of Service 707 t-m

Unfactored Vertical Load

In service 427 tons

Out of Service 405 tons

ROCK INFORMATION

Rock Type Lightly Weathered Limestone

Allowable Bearing Pressure 300 kPa