Minimum Thickness Of Reinforced Concrete Wall

In general poured concrete basement walls that are 8 feet tall or less and have no more than 7 feet of soil pressing against them from the outside function well at a thickness of 8 inches. How thick should a poured concrete foundation wall be. 10 inches thick on walls taller than 8 feet.

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2 5 clear to strength steel 5 12 rather than the designed 5 10 bending strength of the section has been reduced by about 16.

Minimum thickness of reinforced concrete wall.

Thickening the structure along the perimeter by another will serve as an integral footing adding strength where the loads are heaviest. Selected earlier need not be revised. Second a minimum wall thickness of 12 inches is imposed throughout the specially confined boundary zone where the wall section is not tension controlled see 18 10 6 4 c figure 2. Is it a function of the size of the house.

For flatwork such as slabs on grade and driveways a minimum thickness of four inches is required but increasing the thickness to five inches can add nearly 50 percent to the load bearing capacity. Ubc specified minimum thickness of exterior basement wall and foundation wall to be 191mm. Thickness of poured concrete foundation walls tips. Strength reduced from 136 7 to 114 9 in kips.

When a taller wall or a higher level of soil or both come into play the thickness should increase to 10 inches. In rc wall transverse steel is not required not less than 0 4 maximum spacing of bars is 450mm or 3t whichever lesser. Higher psi for extra strength. The thickness of the foundation base is the same as or slightly larger than that at the bottom of the stem.

All concrete stilling basins glacis and floors and all concrete aprons structures with slab thickness 15 inch shall be reinforced in the exposed top face with inch bars at twelve 12 inch center to center both ways placed three 3 inch clear from concrete face unless otherwise designed. Minimum thickness of walls 4 1 bearing walls. The stem thickness can be reduced by tapering one side only up to. Stem thickness of 16 in.

Ubc recommends minimum thickness of bearing wall to 1 25 supported height or length whichever is shorter or not less than 102mm. Is adequate to resist the factored shear force. For rc wall minimum vertical reinforcement is 0 4 of c s. Click here to get tim s free funny newsletter.

While a minimum thickness of 150mm for a wall is possible 180 250mm is recommended to aid detailing and construction. Minimum thickness of compression zone of special shear wall that is not tension controlled. 8 inches is minimum. In plain concrete wall transverse steel is not required.

4 2 exterior basement wall and foundation wall. Walls thinner than 250mm can incur concrete compaction problems due to the congestion of reinforcement particularly near openings. Thus the 18 in. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.

The thickness of wall in no case should be less than 100mm.

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