Method for integrally fixing and installing foundation bolts with large diameter

Abstract

The invention discloses a method for integrally fixing and installing foundation bolts with large diameter, which comprises the following steps of: (1), manufacturing a supporting steel plate in a partition way; (2), determining the central positions of bolt positioning holes on the supporting steel plate; (3), processing the bolt positioning holes on the partitions of the supporting steel plate; (4), installing an upright post and a transverse beam of a fixing rack in situ; (5), splicing the partitions of the supporting steel plate on the transverse beam of the fixing rack, fixing the partitions of the supporting steel plate with the transverse beam of the fixing rack after regulating to enable the positions of the bolt positioning holes on the partitions of the supporting steel plate to be consistent with the design positions of bolts, and welding all the partitions of the supporting steel plate into a whole; (6), installing the bolts in a hung way, enabling the bolts to penetrate through the positioning holes from the lower part of the supporting steel plate, installing nuts on the bolts and centring the elevations of the bolts by utilizing the nuts; and (7), after centring the elevations of all the bolts completely, fixing the bolts with the fixing rack by knot pulling bars and welding the fixing rack firmly. The bottoms of the bolts are fastened by one-time regulation and centring so as to complete the integral fixation and installation of the bolts, and the invention has high efficiency and low cost.

Description

technical field [0001] The invention relates to a method for fixing and installing anchor bolts during equipment foundation construction, in particular to a method for integrally fixing and installing large-diameter anchor bolts. Background technique [0002] In the construction of basic engineering of metallurgical industrial equipment, especially iron-making projects, as the volume of the blast furnace increases, the volume of the hot blast stove also increases, and the bolts for fixing the base of the hot blast stove increase accordingly, and the number of bolts increases accordingly. The quality and precision requirements are higher, the deviation of the central axis of the bolt is not more than 1mm, and the deviation of the center distance of the bolt is not more than ±2mm, and the construction difficulty is increased. Conventional method: Install one by one, use theodolite to divide the angle, measure the radius with a steel ruler, determine the center of the bolt on t...

AI Technical Summary

Problems solved by technology

When the above method is used for construction, the accuracy of bolt installation is poor, and the quality is not guaranteed.

Surveying engineers are required to do a lot of coordinate and elevation work, the construction period is long, the labor intensity is high, and the labor cost is high

The amount of steel required to fix the bolts is large, and its strength and rigidity are not guaranteed. Concrete pouring can easily affect the vibration of the bolts, which can easily cause changes in the relative positions of the bolts and bring difficulties to equipment installation.

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