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Anonymous users2024-01-24This is generally the case (i.e. calculated by the length of the beam). However, if you have another pick plate shape here, you need to check whether the anti-overturning meets the requirements, otherwise you need to increase the anchorage length.
The cantilever lead beam requires that the upper steel bar of the cantilever beam should meet the quality assurance requirements, and the direct anchorage anchorage length is not less than 25 times the diameter of the steel bar, if the law enforcement requirements are not met, the upper steel bar should be bent anchorage, the length of the straight section of the bent anchor must be greater than or equal to the length of the straight section, and the length of the hook on the inner side of the deep support should be 15 times the length of the steel bar diameter.
At the very least, if there are reinforced concrete columns, they can be appropriately reduced.
The anchorage length should be calculated according to the concrete grade of the shear wall, or check 11G101-1, according to non-seismic resistance.
The above practices can be used for reference.
How to calculate the upper reinforcement of the balcony cantilever beam from the inside of the wall.