Wall Footing Concrete Foundation Wall Design Example

W 4 k ft axial load due to overturning under wind loading.

Wall footing concrete foundation wall design example.

Concrete strength al ൯ne for an 10 thick wall with 5 10 and 2 5 clear to strength steel will only reduce the nominal moment capacity of the secti對on from 136 68 to 135 66 inch kips 尩 if the concrete strength decreased from 3 5 to 3 0 ksi. The bottom of the footing is 13 ft below finished grade. Week 08 rc wall footing design lecture duration. This design example focuses on the analysis and design of a tapered cantilever retaining wall including a comparison with model results from the engineering software programs spwall and spmats.

Footings example 1 design of a square spread footing of a seven story building design and detail a typical square spread footing of a six bay by five bay seven story building founded on stiff soil supporting a 24 in. The shear wall carries service dead and live loads of 10 kips ft and 12 5 kips ft respectively. 305 mm thick concrete masonry foundation wall 12 ft 3 66 m high. Using table 4 the wall can be adequately reinforced using no.

The allowable soil pressure is 5000 psf. Shallow foundation design example 4. Equivalent fluid pressure is 45 psf ft 7 0 kn m m excluding soil load factors 10 ft 3 05 m backfill height. Thick structural reinforced concrete shear wall is to be supported by a strip footing.

Tawfik kettanah the art of. The building has a 10 ft high basement. 9 bars at 72 in. νc 4 ksi y 60 ksi dead load d 25 k ft live load l 12 5 k ft wind o t.

Now your task is to design the wall footing for. Bearing wall of a 10 story building founded on soil. Reinforced concrete shear wall foundation strip footing analysis and design a 12 in. At the base of footing the allowable soil pressure is 5000psf and base of footing is 5 below the existing ground surface.

Wall footing design example statement. The retaining wall is fixed to the reinforced concrete slab foundation with a shear key for sliding resistance. Although the top surface of poured concrete footings should be relatively level it should generally not be troweled smooth as a slightly roughened surface enhances the bond between the mortar and concrete. Footings example 1 design of a continuous wall footing determine the size and reinforcement for the continuous footing under a 12 in.

A 10 thick wall carries a service dead load of 8k ft and service live load of 9k ft. Unless otherwise required footings should be carefully aligned so that the concrete masonry wall will be near the center line of the footing.