A steel tube concrete hinge device, a rotating system, and a method for determining parameters of the rotating system

Abstract

The invention discloses a steel pipe concrete rotary hinging device, a rotating system and a method determining rotating system parameters. The steel pipe concrete rotary hinging device comprises an upper spherical hinging steel pipe, an upper spherical hinging steel plate, a lower spherical hinging steel pipe, a lower spherical hinging steel plate and a pin roll, wherein the upper spherical hinging steel plate is mounted on the bottom of the upper spherical hinging steel pipe and forms a first accommodating cavity having a sealed bottom with the upper spherical hinging steel pipe; the lower spherical hinging steel plate is arranged on the top of the lower spherical hinging steel pipe and forms a second accommodating cavity having a sealed top part with the lower spherical hinging steel pipe; the first and second accommodating cavities are both filled with concrete; and the upper spherical hinging steel plate and the lower spherical hinging steel plate are connected via a round hole passing through the upper spherical hinging steel plate and the lower spherical hinging steel plate and the pin roll passing through a pin roll casing pipe. The rotating system comprises a steel pipe concrete rotary hinging device, at least two supporting legs, an annular path, an upper rotating disc and a lower rotating disc. With the steel pipe concrete rotary hinging device and the rotating system of the same, the size of the upper and lower rotating discs can be reduced, material use can be reduced and cost and construction difficulties can be lowered.

Description

technical field [0001] The invention relates to bridge design and construction technology, in particular to a steel pipe concrete hinge device, a rotating system and a method for determining parameters of the rotating system. Background technique [0002] In the prior art, when crossing busy railways and highways, the swivel method is more and more widely used because it has the least impact on the operation of existing lines. The swivel is applicable to a wide range of bridge spans, and the weight of the swivel ranges from several hundred tons to tens of thousands of tons. Therefore, the parameter selection and design of swivels with different weights is particularly important. [0003] The hinge is an important component in the swivel system. In the prior art, the early rotary hinges generally use concrete spherical hinges, but their bearing capacity is low and the coefficient of friction is large, so their use is limited. In recent years, steel hinges have been more and...

AI Technical Summary

Problems solved by technology

At present, the allowable compressive stress of the slider in the restraint pit can reach 70MPa, but it contacts the concrete with the upper and lower hinges. Taking C50 as an example, the allowable compressive stress at the center is only 13.4MPa. Therefore, it is necessary to increase the diameter of the hinge plane or increase the concrete contact plane. size to meet the force requirements, so the size of the upper and lower turntables will also increase accordingly, which greatly increases the construction cost and construction difficulty

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