The standard process quality assurance measures for pre-embedded bolt operations mainly include the following aspects:
Outer structure foundation pre-embedded bolt angle steel frame processing: cutting of angle steel column (material selection ∠50×5 angle steel)——calculate the height of angle steel column according to the design drawing, and carry out the blanking (cutting requirement: the length of the angle steel column is greater than the calculation The value is 30mm, as the adjustment amount), the height of the sample rack is equal to the deduction (ie, the secondary grouting height and the thickness of the protective layer are deducted according to the design height).
Fixed anchor plate production: preliminary positioning bolts welded on the angle steel. The central hole diameter and angle of the bolt holes of the anchor plate are mechanically punched according to the size requirements of the drawings. It is necessary to ensure that the elevation, verticality and opening size of the sample support are within the specified range.
Each frame foundation is made of steel plate and processed with a rectangular anchor plate and a steel plate with a thickness of 5 mm. The anchor steel plate is crossed with a cross line, and according to the design requirements, the machine is divided into 15°/30°, and 24 circular holes (diameters M45, M56, M42) are processed on the anchor steel plate, which are consistent with the design position of the drawing.
After the anchor model is finished, it is numbered according to the size of the paper.
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