Elastic support mechanism of wind-resistant spherical support

Abstract

The invention relates to an elastic support mechanism of a wind-resistant spherical support. The elastic support mechanism is provided with a fourth seat plate (7), a third seat plate (6) is arranged in a middle groove of the fourth seat plate (7), and a disk-shaped stainless steel plate (9) on an arc-shaped spherical surface of the third seat plate (6) and a disk-shaped stainless slide plate (10) on the bottom surface of the middle groove of the fourth seat plate (7) form a pair of spherical friction pairs; one side of the fourth seat plate (7) is provided with a second seat plate (4) forming a gap with the fourth seat plate (7), the second seat plate (4) and the fourth seat plate (7) have certain relative moving space meeting the requirement of the support for displacement in transverse bridge direction; a spring (5) is arranged between the second seat plate (4) and the third seat plate (6) and provides bounce to push the second seat plate (4) to be close to a first seat plate (1), so that the support is uniformly stressed, and load transmitting is smooth and slow. A locking bolt (8) is arranged between the second seat plate (4) and the fourth seat plate (7), so that the second seat plate (4) and the fourth seat plate (7) can relatively move without separation within a design range.

Description

technical field [0001] The invention belongs to the technical field of bridge structures, and is a support product that can be used for bridges, in particular to an elastic support mechanism of a wind-resistant spherical support. Background technique [0002] In recent years, a large number of cable-stayed bridges and suspension bridges with large spans and large bearing capacity have been designed and built in succession in response to the needs of my country's national economic development. Between the inner side of the tower body and the outer side of the beam body of these cable-stayed bridges and suspension bridges, wind-resistant bearings are installed vertically, and the bearings are respectively anchored and connected to the tower body and the beam body. The wind-resistant bearing can limit the large-distance swing of the horizontal bridge of the beam body caused by wind or earthquake force, bear the horizontal horizontal force transmitted by the beam body, and at th...

AI Technical Summary

Problems solved by technology

As a result, this structure makes the wind-resistant support bulky and bulky, and the manufacturing and installation process is relatively difficult; in addition, due to the tension, stiffness and size limitations of the existing standard springs, the above-mentioned wind-resistant support can only meet the bearing capacity of the transverse bridge. If the requirement is less than 10000kN, the wind-resistant bearing with greater bearing capacity will not be realized

The plane friction pair composed of one side of the seat plate plane in the support and the seat plate plane on the other side of the support is in a non-contact state when it is not loaded in the transverse bridge direction, with a certain gap in the middle, and is embedded in the plane side of the middle seat plate The non-metallic slide plate may fall off, causing the failure of the plane friction pair; at the same time, there is a gap between the plane friction pairs. damage

The basin-type rubber wind-resistant bearing is inlaid with a rubber plate inside the pelvis, and the rubber plate is compressed and deformed to bear the horizontal reaction force and the bearing rotation function; the rubber material is easy to age and harden, and even eventually fails, causing the bearing to lose its bearing and rotation functions , can not guarantee the safe use of bearings and bridges; due to the difficulty in manufacturing and forming large-diameter rubber plates, basin-type rubber wind-resistant bearings cannot be designed with large bearing capacity; limited by the compression deformation capacity of rubber plates, the bearing rotation The angle is small, and the design requirements for large corners cannot be realized

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