Foundation bolt structure and construction method thereof

Abstract

The invention discloses a foundation bolt structure and a construction method thereof. The foundation bolt structure consists of a screw rod, a specially-shaped barrel and a bolt, wherein the specially-shaped barrel comprises a barrel body and a barrel bottom; a through hole is formed in the middle of the barrel bottom; the hole diameter of the through hole is larger than the diameter of the screw rod; a flange extends outwardly in the radial direction of the barrel bottom; raw tentacles are arranged on the inner surface of the barrel body inwardly and on the outer surface of the barrel body outwardly; threads are arranged at the two ends of the screw rod; the screw rod penetrates through the through hole and is connected with the specially-shaped barrel through the bolt. The construction method comprises the following steps: constructing equipment base concrete; introducing equipment; centering bolt holes and equipment bolt holes; adjusting offset bolts to be aligned with the equipment; installing the equipment in an aligned way; pouring concrete. The bolt and the specially-shaped barrel are simple and practical; through integral embedment, the anchoring strength of a foundation bolt and an equipment base is ensured; the equipment is accurately positioned; the positioning difficulty of the equipment is effectively reduced; reworking is reduced; the working efficiency is improved; the construction period is shortened; the construction cost is greatly reduced; and economic benefits are increased.

Description

technical field [0001] The invention relates to the field of medium and large equipment installation in nuclear power plants, in particular to an efficient and convenient anchor bolt structure and a construction method thereof. Background technique [0002] The installation of large and medium-sized equipment in nuclear power plants has high requirements on the construction accuracy of the foundation bolts. There are multiple foundation bolts on the equipment foundation. Even if the construction of one foundation bolt does not meet the construction precision requirements, it may directly affect the normal installation of the equipment and cause rework. , It often affects the accuracy and progress. At present, the method of pre-embedded anchor bolts or reserved anchor bolt holes is usually used in construction. The former is poured with the equipment base at one time, which is stable and firm. The disadvantage is that the accuracy is not guaranteed. It is inconvenient to adju...

AI Technical Summary

Problems solved by technology

[0002] The installation of large and medium-sized equipment in nuclear power plants has high requirements on the construction accuracy of the foundation bolts. There are multiple foundation bolts on the equipment foundation. Even if the construction of one foundation bolt does not meet the construction precision requirements, it may directly affect the normal installation of the equipment and cause rework. , It often affects the accuracy and progress. At present, the method of pre-embedded anchor bolts or reserved anchor bolt holes is usually used in construction. The former is poured with the equipment base at one time, which is stable and firm. The disadvantage is that the accuracy is not guaranteed.

The anchor bolts are not aligned with the equipment bolt holes, which is inconvenient to adjust; the latter reserves the anchor bolt holes, and after the equipment is in place, the secondary pouring is carried out. In this way, the anchor bolts are easy to locate, but the concrete of the secondary pouring and the It is difficult to fix the bolts and steel bars in the foundation, and there is a risk of insufficient strength of the equipment foundation

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