一种大型钢结构滑移装置
By adopting an isosceles trapezoidal sliding beam and a 45-degree connection structure, combined with the design of rounded corners on the sliding shoe and a limiting plate, the force transmission path was optimized, the bending moment problem in the steel structure sliding device was solved, and the stability and safety of the sliding process were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing steel structure sliding devices have the problem of additional bending moment during the jacking process, which leads to defects such as stress concentration in welds, local deformation of steel structures and deviation of sliding trajectory.
It adopts an isosceles trapezoidal sliding beam and a 45-degree connection structure, combined with rounded corners of the sliding shoe, limit plate and lubrication design, to optimize the force transmission path, eliminate bending moment effect and evenly distribute pressure.
It effectively eliminates the bending moment effect, reduces the risk of stress concentration at nodes, ensures the stability and smoothness of the sliding process, and improves the safety and efficiency of the sliding device.
Smart Images
Figure CN224514773U_ABST
Abstract
Claims
1. A large steel structure sliding device, comprising a support structure and a jacking device; the support structure is used to support the jacking device, characterized in that: The jacking device includes a sliding beam, a sliding track, a jacking device, and a sliding shoe; The outer contour of the cross-section of the sliding beam is an isosceles trapezoid, with the wider base at the top. The sliding track is fixedly installed on the upper part of the sliding beam; One end of the pusher is fixed on the sliding rail, and the other end is fixed to the connecting structure welded to the steel structure via an ear plate. The connecting structure is welded and fixed to the horizontal plane of the center of gravity of the steel structure; The angle between the extension direction of the connecting structure and the longitudinal and transverse trusses of the steel structure is 45 degrees. The sliding shoe is located between the sliding beam and the steel structure to reduce the frictional resistance between the steel structure and the sliding track.
2. The large steel structure sliding device according to claim 1, characterized in that: The front of the sliding shoe is rounded along the sliding direction; a limiting plate is provided at the rear of the sliding shoe along the sliding direction, the limiting plate is provided on both sides of the sliding track and welded to the sliding shoe; the limiting plate is 15mm away from the edge of the sliding track.
3. The large steel structure sliding device according to claim 1, characterized in that: The bottom of the sliding shoe is provided with a rectangular groove, and the side wall of the rectangular groove is connected to the bottom surface of the sliding shoe through an inclined oil injection hole; the oil injection holes are symmetrically arranged on both sides of the rectangular groove; the longitudinal axis of the sliding track is provided with a protrusion that matches the rectangular groove at the center.
4. The large steel structure sliding device according to claim 1, characterized in that: The sliding beam has stiffening ribs on both sides and inside the web of the sliding beam; the sliding beam is fixed to the concrete column by the first embedded part; the central axis of the sliding track is in the same vertical plane as the central axis of the web of the sliding beam, and the sliding track is fixed by track pressure plates on both sides of the sliding track; the starting end of the sliding direction of the sliding track is also provided with a track baffle, which is a T-shaped baffle composed of two mutually perpendicular baffles.
5. A large steel structure sliding device according to claim 4, characterized in that: The track pressure plate has a notched rectangular shape, and the bottom edge of the track pressure plate is fixed to the sliding beam, with the notched part pressing against the sliding track.
6. The large steel structure sliding device according to claim 1, characterized in that: The connecting structure is a rectangular steel plate, one end of which is welded to the steel structure, and the other end is fixedly connected to the ear plate after transitioning through an inclined steel plate.
7. The large steel structure sliding device according to claim 1, characterized in that: The supporting structure includes a main supporting structure consisting of two columns and a concrete column forming an isosceles triangle. The main supporting structure is connected by horizontal and diagonal connecting rods. The horizontal connecting rods are fixedly connected to the concrete column through a second embedded part. The horizontal connecting rods are welded to the columns, and the three horizontal connecting rods form an isosceles triangular cross section. One end of each diagonal connecting rod is welded to the column, and the other end is fixed to a clamp. The clamp is fixed to the concrete column. With the clamp as the vertex, four diagonal connecting rods are connected to the horizontal rods and the columns to form a quadrangular pyramid.
8. A large steel structure sliding device according to claim 7, characterized in that: The upper part of the supporting main structure is fixedly connected to the sliding device via a grid beam and diagonal braces symmetrically arranged on the columns. The upper part of the columns under the grid beam is provided with a column top pad. A vertical line is drawn from the concrete column as the vertex to the grid beam, and lateral stiffening ribs are provided along the vertical line. One side of the lateral stiffening rib is fixed to the web of the grid beam, and the other side is fixed to the bottom surface of the sliding device. The grid beam is also provided with internal stiffening ribs parallel to the cross-section of the grid beam. One end of the diagonal brace is welded to the bottom of the sliding device, and the other end is welded to the column, forming an inclined V-shape. The inclined V-shape is symmetrically arranged on both sides of the column with the connection between the diagonal brace and the sliding device as the vertex.
9. The large steel structure sliding device according to claim 7, characterized in that: The supporting main structure is provided with a column base transfer beam at the lower end, which is used to convert the concentrated force at the bottom of the column into a more evenly distributed load and transfer it to the concrete beam; the cross section of the column base transfer beam is a grid box section; the column base transfer beam is provided with transfer beam stiffening ribs along the extension direction of the column; the upper part of the column base transfer beam is fixedly connected to the column through a flange, and a limiting block is provided around the flange; the limiting block is L-shaped, one end is welded and fixed to the upper part of the column base transfer beam, and the other end presses down on the flange through an L-shaped notch.
10. A large steel structure sliding device according to claim 9, characterized in that: The column base transfer beam is provided with a column base plate at the bottom, which is located at the longitudinal center of the concrete beam. The width of the column base plate is smaller than the width of the concrete beam. Where the perimeter of the column base plate intersects with the perimeter of the column base transfer beam, the column base plate is laterally limited by a limiting steel bar. The limiting steel bar is L-shaped, with one end embedded in the concrete beam and the other end pressing on the flange of the column base transfer beam.