What is a cow leg?

Support column is another name for beam support. In ancient buildings, the scientific name of the scaffold is "brace".

There must be a resting structure between the cantilever beam and the cantilever of the cantilever system. Usually, the local structure of cantilever end and hanging beam end is called bracket, also called beam support.

Its function is to connect the cantilever beam with the hanging beam and transfer the load from the hanging beam. Here, because the beams overlap with each other, and a force transmission bearing is set in the middle to transmit larger vertical and horizontal reaction forces, the height of the bracket has been weakened to less than half of the height of the beam, but it has to transmit larger vertical and horizontal reaction forces, which makes it a weak part in the superstructure.

Extended data:

Precautions in support design:

1, cantilever beam and cantilever beam web should correspond to each other one by one, so that the force is clear and the force transmission route is shortened; The web near the support should be properly thickened, and the length of the thickened part should not be less than the beam height.

2. Set the end beam for reinforcement, and the width of the end beam should include the bracket to form a whole.

3. The concave angle of bracket should be gentle to avoid sharp angle, so as to slow down the excessive concentration of principal tensile stress.

4, bracket bearing height should be reduced as far as possible, such as using rubber bearing.

5, according to the requirements of design and calculation configuration of dense reinforcement, reinforcement layout should be consistent with the main tensile stress direction, in order to prevent concrete cracking.

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