Reinforced Concrete Wall Rebar Spacing Chart

Strength reduced from 136 7 to 114 9 in kips.

Reinforced concrete wall rebar spacing chart.

Calculate the amount of rebar needed for reinforcing a wall. Lap splice lengths are always shown on placing drawings and will be found either in the details lap charts or in the general notes. This calculator assumes that you are using 20 foot long lengths of rebar. There s no generally accepted rule of thumb as to how to space rebar in a concrete slab.

Somewhere we saw a picture of a wall chart showing rebars full size and giving handy reference information. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used. 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. If your wall is over 20 feet long it will add the amount of overlap required.

The concrete reinforcing steel institute 180 north lasalle street chicago lilinois 60601 publishes such a chart 30 by 60 inches which they sell for 5 00 prepaid. The length of a lap splice varies with concrete strength type of concrete the yield strength grade of the reinforcing bars bar size bar spacing concrete cover and the amount of ties or stirrups. There are many variables that influence the decision of how much space to leave including the maximum load the slab is likely to have to support the bearing capacity of the soil the diameter of the reinforcing rebar the likelihood of frost heaving the slab and whether or not the slab is on a level grade.