Large-tonnage marine corrosion prevention metal damping seismic mitigation and isolation steel supporting seat

A technology of corroding metals and large tonnage, applied in bridge parts, bridge materials, bridges, etc., can solve the problems of unfavorable arch bridges, loss of horizontal restraint structure, etc., and achieve the effect of avoiding falling beams, simple structure and reasonable design.

Active Publication Date: 2015-03-11
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the horizontal force produced by accidental factors such as earthquakes exceeds the ultimate bearing capacity of the block, the block will be cut and the horizontal restraint structure will be lost. At this time, the situation of falling beams may not be caused for cable-stayed bridges or suspension bridges (because There are cables to pull the girder body), but it is extremely unfavorable for arch bridges, and there is no measure that can be relied on again

Method used

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  • Large-tonnage marine corrosion prevention metal damping seismic mitigation and isolation steel supporting seat
  • Large-tonnage marine corrosion prevention metal damping seismic mitigation and isolation steel supporting seat
  • Large-tonnage marine corrosion prevention metal damping seismic mitigation and isolation steel supporting seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as Figure 1 to Figure 3 As shown, a large-tonnage anti-marine corrosion metal damping shock-absorbing steel bearing includes an upper bearing plate 1, a spherical crown lining plate and a lower bearing plate 2, and the spherical crown lining plate is installed on the upper bearing plate 1 and the lower bearing plate. Between the support plates 2, the spherical crown liner is composed of an upper liner 3 and a lower liner 4, the lower support plate 2 is provided with a liner installation groove 5, and the lower liner 4 is fixed in the liner installation groove In 5, the top of the upper liner 3 is fixedly connected to the upper support plate 1, the outer side wall of the bottom is in contact with the inner wall of the liner installation groove 5, the bottom surface of the upper liner 3 is slidingly fitted with the top surface of the lower liner 4, and the mating surface is a ball The crown surface; on the outer side of the upper liner 3, there is an anti-fall beam ...

Embodiment 2

[0029] see Figure 4 and Figure 5 , the difference between this embodiment and the first embodiment is that only the elongated damper installation groove is symmetrically opened on the lower support plate 2 opposite to the front and rear of the spherical crown liner, and the elastic element 11 is matched with the damper installation groove and installed In the groove, several installation holes are evenly opened on the elastic element 11, and the tenon sleeve 10 is assembled in the installation holes.

[0030] The support is only symmetrically arranged with metal dampers along the direction of the bridge.

[0031] The vertical bearing capacity of the above-mentioned large-tonnage anti-marine corrosion metal damping shock-absorbing and isolation steel bearing is 100,000kN. During normal operation, the displacement along the bridge is 0mm, and the displacement along the bridge is ±40mm. In case of accidental factors such as earthquakes, after the shear bolt 7 is destroyed, th...

Embodiment 3

[0033] see Figure 6 and Figure 7 , the difference between this embodiment and the first embodiment is that only the elongated damper installation grooves are symmetrically opened on the lower support plate 2 on the left and right sides of the spherical crown liner, and the elastic element 11 is matched with the damper installation grooves. Installed in the groove, several installation holes are evenly opened on the elastic element 11, and the tenon sleeve 10 is assembled in the installation holes.

[0034] The support is only symmetrically arranged with metal dampers in the direction of the transverse bridge.

[0035] The vertical bearing capacity of the above-mentioned large-tonnage anti-marine corrosion metal damping shock-absorbing and isolation steel support is 100,000kN. During normal operation, the displacement along the bridge is ±300mm, and the displacement along the bridge is 0mm. In case of accidental factors such as earthquakes, after the shear bolt 7 is destroy...

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Abstract

The invention discloses a large-tonnage marine corrosion prevention metal damping seismic mitigation and isolation steel supporting seat. The supporting seat comprises an upper supporting seat plate, a spherical crown liner plate and a lower supporting seat plate, wherein the spherical crown liner plate is mounted between the upper supporting seat plate and the lower supporting seat plate and consists of an upper liner plate and a lower liner plate; an liner plate mounting groove is formed in the lower supporting seat plate; the lower liner plate is fixed in the liner plate mounting groove; the upper liner plate is fixedly connected to the upper supporting seat plate; the outer bottom wall of the upper liner plate is in contact with the liner mounting groove; the bottom surface of the upper liner plate is in sliding fit with the top surface of the lower liner plate, and the fitting surface is a spherical crown surface; the outer side of the upper liner plate is provided with a falling-off prevention stopper fixedly connected with the upper supporting seat plate; the bottom surface of the falling-off prevention stopper is fixed with one end of an anti-seismic stopper through a shearing-resistant bolt; the other end of the anti-seismic stopper is in contact with the outer wall of the upper liner plate; a gap is reserved between the outer wall of the falling-off prevention stopper and the outer wall of the upper liner plate; and the a metal damper is mounted between the upper supporting seat plate and the lower supporting seat plate on the outer side of the falling-off prevention stopper. When an earthquake occurs, the supporting seat has a two-stage protecting structure, so that the supporting seat main body cannot be damaged, and falling off of beams can be avoided.

Description

technical field [0001] The invention relates to a spherical steel support, in particular to a large-tonnage marine corrosion-resistant metal damping shock-absorbing and isolation steel support. Background technique [0002] The spherical steel bearing was successfully developed in China in the late 1980s. Compared with other bearings, it has obvious advantages in bearing capacity, rotation, temperature adaptability and service life. It has been widely used in roads and railways. , municipal and other bridge projects. [0003] At present, the large-tonnage spherical steel bearings used in bridge engineering are basically of the first-class anti-seismic type, that is, according to the horizontal bearing capacity requirements proposed in the design, a stopper is set on both sides of the lower bearing plate of the bearing, The stopper is fixed to the upper bearing plate to bear the horizontal load. Once the horizontal force produced by accidental factors such as earthquakes ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04E01D101/30
CPCE01D19/046E01D2101/30
Inventor 周亮刘海亮邹贻军骆明成陈太华
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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