Recommended details for reinforced concrete construction part 4.
Reinforced concrete wall details.
Note that building code b1 as1 amendment 11 removed the untied slab footing details in figures 7 13 a 7 14 a 7 15 a and 7 16 a of the standard.
Reinforced concrete cantilever types of retaining wall are recommended for heights up to 7 m.
Strength reduced from 136 7 to 114 9 in kips.
Manual for design and detailing of reinforced concrete to september 2013 the code of practice for structural use of concrete 2013 contents 1 0 introduction 2 0 some highlighted aspects in basis of design 3 0 beams 4 0 slabs 5 0 columns 6 0 beam column joints 7 0 walls 8 0 corbels 9 0 cantilevers 10 0 transfer structures 11 0 footings.
Heavy equipment shall maintain a distance away from the wall equal to the wall s height.
The reader is referred to tek 3 11 concrete masonry basement wall construction tek 19 3b preventing water penetration in below grade concrete masonry walls and ncma s basement manual for more detailed design and.
The use of wsdot standard plan reinforced concrete retaining walls and traffic barrier details for reinforced concrete retaining wallsshall be limited as follows.
Concrete protection for reinforcement plays an essential role in the requirements of bar spacing and.
Detailing of reinforcement is 456 guidelines.
A slender section can be used in this retaining wall the tensile stresses within the stem and the base is resisted by steel reinforcement.
This type of walls has vertical stem monolithic with the base.
For rc wall minimum vertical reinforcement is 0 4 of c s in plain concrete wall transverse steel is not required in rc wall transverse steel is not.
Backfilling against reinforced masonry retaining walls shall not be permitted until at least 7 days after placing concrete or grout in cores.
This tek contains details for various types of concrete masonry foundation walls with accompanying text as appropriate.
Creating a wall opening in a reinforced concrete wall creates extra stress around that opening especially at the corners.
Window and door headers also known as lintels can be subjected to significant bending moment and shear forces depending on several factors.
Most walls will have window or door openings or both.
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.
For plain concrete wall minimum vertical steel is 0 12 for hysd bars and 0 15 for mild steel bar.
This article is the fourth in a series on recommended reinforcement details for cast in place concrete.