Construction knowledge points of anchor bolts:
The method of embedding the anchor bolts is divided into direct burial and post burial. The advantage of the directly buried anchor bolt is that the concrete is cast once, the concrete strength is uniform, the integrity is strong, and the shear strength is high; the disadvantage is that the bolt has no fixed support point, and if the bolt positioning error occurs, the treatment is rather cumbersome. The advantage of the post-buried foot bolt is that the bolt has a reliable support point, the positioning is accurate, and the error is not easy to occur; the disadvantage is that the concrete part of the reserved hole is hardened and contracted after pouring, and it is easy to generate cracks between the original concrete and reduce the overall shear resistance. The overall durability of the structure is affected.
2 deviation handling of anchor bolts. When the deviation between the center of the bolt and the design center is within 10 mm, the bolt hole position or the boring hole of the column foot plate can be adjusted to adjust. When the bolt diameter is within 36mm and the deviation distance is less than 1.5d, it is generally treated by hot bending bolt method.
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