Wall column reinforcement:
1. Clean the cement slurry on the reinforcement at the root of the wall and column.
2. Reinforcement requirements: the distance between the first stirrup and both ends of the column is less than or equal to 50 mm. ..
3. Lapping requirements for vertical reinforcement of wall column: the length conforms to the design and specifications, and there are three horizontal reinforcement at the lap. The binding range is not less than three buttons. 50% of the wall columns are staggered, and the staggered distance is not less than 1.3 times the overlapping length of adjacent joints. Overlapping area encryption.
4. Binding: The joints of stirrups should be staggered and bound along the column, with stirrups perpendicular to the column and binding heads inward. Fasteners should be flared relative to each other. The stirrup hook size shall meet 135 degrees, and the straight length of the hook shall not be less than 10d and not less than 75mm. Where stirrups need to be densified, the spacing shall be controlled at 5d and 10cm. That is, when it is greater than φ 20, it is controlled by 10cm, and when it is less than φ 20, it is controlled by 5d.
The horizontally distributed reinforcement of shear wall should extend to the wall end, and be cut off after bending horizontally inward 10d.
5, protective layer requirements:
Set the spacing of 600mm×600mm, arranged in a plum blossom shape.
Column reinforcement pads are arranged on the main reinforcement, and wall reinforcement pads are arranged on the horizontal reinforcement of the wall.
Guaranteed project
(1) The material, specification and covered electrode model of steel bar shall conform to the design and construction specifications of steel bar engineering, and there shall be quality certificates of materials and products and physical performance inspection certificates. Imported steel products should be inspected for chemical properties, and can only be used after passing the inspection.
(2) The specification, shape, size, quantity, spacing, anchorage length, joint position and protective layer thickness of reinforcement must meet the design requirements and construction specifications.
(3) The welder must hold the welder's certificate of the corresponding level before taking up his post.
(4) Before welding, two tensile samples shall be made with the same materials, welding conditions and parameters in advance. When the test results are greater than the tensile strength of this kind of reinforcement, formal welding is allowed. At this time, samples should not be taken from the finished product.
Refer to the above content: Baidu Encyclopedia-Quality Standard for Steel Construction