Which code has specific requirements for steel stools

The technical requirements for steel bar binding are above, and the horse pedal column is for double-layer steel bars!

It is generally 1 square meter, and one is a horse pedal.

The size of the stool bar is the specification of the steel bar that is one size smaller than the plate, and the length of the stool bar is calculated: the height of the stool = the thickness of the slab - the sum of the size of the protective layer - 2 and the upper and lower steel bars.

Stool bar design requirements: plate thickness 140mm, plate stress reinforcement and distribution steel bar 10, stool bar size can be 8 centimeters; When the plate thickness is 140mm-200mm, the stressed steel bar of the plate and the distributed steel bar S12, the stool bar reinforcement needs to be used in the middle 10 plate thickness of 200mm-B00mm, and the stressed steel bar and the distributed steel bar S14 of the plate.

Stool reinforcement can be used in 12 plate thickness 300mm-500mm, when the stress reinforcement of the plate and the distribution reinforcement S16, the stool reinforcement can be used in the 14 plate thickness 500mm-700mm, when the stress reinforcement of the plate and the distribution reinforcement S18, the stool reinforcement can be used in the 16 plate thickness greater than 80 cm, it is best to use the reinforcement bracket or angle steel support.

The spacing of the upper horizontal straight section is the spacing of the plate reinforcement +50mm, (it can also be +80mm), the lower left straight section is the spacing of the plate reinforcement +50mm, and the lower right straight section is 100, so that the bottom of the stool can be placed on the 2 and steel bars on the bottom plate, and the lower horizontal length of the stool bar must be larger than the spacing of the plate. The lower part is smoothly supported on the lower reinforcement of the slab. The binding is firm, and the stool tendons cannot touch the template, so as to prevent the stool tendons from touching the exposed tendons of the wooden board.

Commonly used spacing standards for stool reinforcement:

1.When the diameter of the steel bar is less than or equal to 12mm, the stool spacing is generally 400mm.

2.When the diameter of the steel bar is between 12-20mm, the stool spacing is generally 500-600mm.

3.When the diameter of the steel bar is greater than or equal to 20mm, the stool spacing is generally 900mm.

The stool refers to the rebar positioner used in reinforced concrete structures, which is used to fix the reinforcing bars on other structural parts in the concrete. The design of the stool is based on the diameter of the rebar, and because the diameter is different, the spacing of the stool is also different.

Note: It should be noted that these spacing standards are for reference only, and the specific stool spacing distance should be determined according to factors such as the specific steel bar diameter, the working performance of the concrete and the needs of structural design. If you need specific design references, please consult a professional structural engineer or the standard specifications of the relevant organization.

Kiss! Hello, happy to answer your <>

Is there a relevant setting specification for pro-horse stool tendons? As follows: Yes, if the thickness is within 1 meter, the outer diameter should be greater than 18 cm, and the middle interval is staggered; If the thickness is about meters to meters, the outer diameter should be at least 22 cm or more; If the thickness is within meters to meters, the outer diameter must be more than 14 centimeters, and the middle must be separated by 1 meter and then staggered.

What are the reasons why the stool tendons are not tied firmly1, the steel lap joint is not staggered, and the length is not enoughWhen the beam and the floor steel bar are tied, the length of the joint is insufficient, and it will not be staggered on the same plane. This will reduce the load-bearing capacity of the component and affect the safety of the structure. 2. The displacement caused by the infirm binding is a serious quality problem.

After binding, the rebar can be moved up and down, and when placed on the formwork, the rebar may be heavily tilted or overlapped, resulting in deformation of the rebar. The steel mesh becomes parallelogram, which seriously affects the bearing capacity of the steel. Hope mine can help you <>

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