A lower spherical hinge device for realizing an assembled swivel support

Abstract

The invention discloses a lower spherical hinge device for realizing an assembled swivel support, which includes a matched lower spherical hinge and an upper spherical hinge, and the lower spherical hinge includes sub-blocks connected by connecting pieces; it also includes a ring-shaped anti-collapse structure , the ring-shaped anti-collapse structure includes a ring-shaped reinforcement, which is used to be fixed to the concrete base of the abutment, and the ring-shaped reinforcement is fixedly sleeved on the outer wall of the lower ball joint. The present invention provides a device for realizing the assembled lower ball joint of the swivel support, which is equipped with an annular reinforcement, which not only reduces the compressive stress on the contact surface between the lower spherical hinge of the swivel support and the concrete of the bearing platform, but also can Provide the binding force on the lower ball joint of the swivel support, and when part of the sub-blocks of the lower ball joint is crushed and collapsed, the lower ball joint can still be kept running without deformation, which greatly increases the safety of the swivel support. It also reduces the risk of being crushed due to excessive compressive stress on the contact surface between the spherical joint and the concrete under the swivel support.

Description

technical field [0001] The invention relates to bridge construction technology, in particular to a spherical hinge device for realizing an assembled swivel bearing. Background technique [0002] With the development of my country's transportation industry, many new projects have problems such as highways, railway bridges that need to cross roads, rivers, deep ditches and other terrains. In order to solve such problems, the plane rotation construction method is one of the most widely used construction methods at present. The device used in this construction method is called bridge rotation equipment; It is composed of vinyl fluoride sliding plate, leveling steel plate, pin shaft and anchor bolts connecting the upper and lower spherical hinges. At present, the swivel bearing is divided into integral type and block assembly type. The integral swivel bearing is generally suitable for the conventional size swivel bearing with the swivel mass less than 30,000 tons. For the swive...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is that the lower spherical hinge of the assembled swivel support lower spherical hinge device is divided into multiple pieces for manufacture and installation, and each piece is connected by an anchor bolt, and each piece of the lower spherical hinge is connected with the adjusting bolt by a bolt. Flat steel connection

Due to the concave arc surface of the lower ball joint, the huge vertical force will generate a horizontal component force outward on each lower ball joint. Once the connecting bolts of the lower ball joints connected in blocks are broken under the action of the horizontal force , will lead to the destruction and collapse of the swivel support, and the swivel cannot be implemented, so there is an urgent need for a ball joint device that realizes the assembled swivel support to solve the above problems

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