Vertical positioning connection structure of fang bolt

Abstract

A vertical positioning connection structure of a stone bolt is applicable to the vertical positioning connection between underframe cross beam structure of mast type mechanical equipment and a basic concrete beam. The position of the stone bolt along transverse direction and longitudinal direction of a base beam is sacred from restriction of a concrete and the diameter and length of the stone bolt is capable of being adjusted and changed according to specific requirements, thus under the condition of not weakening or as little as possible weakening the section of the concrete base beam and guaranteeing base intensity and integrity, the invention realizes standardized and serialized vertical positioning connection structure with wide applicability between different mast type mechanical equipments structured by different underframe cross beam structure from different factories and prefabricateed concrete bases.

Description

technical field [0001] The invention relates to the vertical positioning connection structure of the foundation beam and the upper mechanical equipment of the concrete foundation of the mast type mechanical equipment used in periodical movement or fixed use. Background technique [0002] At present, construction, electric power, petroleum, information, mining, and military fields are periodically mobile, such as construction fixed tower cranes, wind power generators, oil extraction machines, signal towers, drilling machines, large land-based radars and other mast-type machinery. Most of the equipment foundations adopt integral cast-in-place concrete foundations. The obvious disadvantages are that the utilization rate of resources is extremely low, the construction period is long, and the production period in cold regions is longer, which cannot be reused, and at the same time causes a lot of waste of resources and environmental pollution. In recent years, the cross-shaped co...

AI Technical Summary

Problems solved by technology

However, in view of the two technical and economic goals of repeated use and light weight of the combined foundation of mast-type mechanical equipment, there are wastes and narrow adaptability caused by the fixed combination form caused by the design of the basic structure being restricted by the cross beam of the underframe of the mechanical equipment; Mechanical equipment with small tipping moments and vertical forces, especially fixed construction tower cranes with fixed underframe cross beams, which account for more than 80% of the total number of construction tower cranes in China, urgently need to solve the same problems produced by domestic manufacturers urgently. The different structural dimensions of the underframe cross beams of different types of tower cranes lead to different vertical connection structures with the foundation. The vertical connection structure of a type of combined foundation cannot be fixedly connected with the underframe cross beams of tower cranes of the same type from several manufacturers. , that is, the generality and broad applicability of the foundation

Although some existing non-one-time fixed anchor bolt vertical positioning connection structures solve the problems of anchor bolt displacement and diameter and length conversion, they all cause damage to the cross-section of the concrete foundation beam to varying degrees, which has become a foundation safety issue. a new danger of

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