CN-122013650-A - Box girder supporting structure and steel box girder bridge comprising same

Abstract

The invention discloses a box girder supporting structure and a steel box girder bridge comprising the same, comprising a sliding seat, a box girder movably clamped at the top of the sliding seat, a limiting block movably connected to the side wall of the sliding seat, a sliding plate movably sleeved on the inner wall of the sliding seat, a clamping rod fixedly connected to the side wall of the sliding plate through a bolt, and a guide assembly arranged inside the sliding seat and used for driving the limiting block and the clamping rod to move. This kind of case roof beam bearing structure and contain steel case roof beam bridge of this structure through butt board butt in case roof beam one side to drive stopper and draw-in lever and realize synchronous displacement in the inside of slide, make the draw-in lever insert the inner wall of draw-in groove one smoothly, thereby realize the butt joint direction of case roof beam, realize the accurate spacing and the direction of case roof beam displacement in-process, effectively avoid case roof beam skew, side to through the reaction force of ejector pad, under the joint condition of ratchet cooperation actuating strip, make the stopper keep in the settlement position, improved laminating compactness between the case roof beam.

Inventors

• ZHENG XINGDONG
• JIN SIYUAN

Assignees

• 上海亦成影信息科技有限公司

Dates

Publication Date

20260512

Application Date

20260310

Claims (10)

1. 1. The utility model provides a case roof beam bearing structure, includes the slide, and movable joint in the case roof beam at slide top, its characterized in that still includes: the limiting block is movably connected to the side wall of the sliding seat; the sliding plate is movably sleeved on the inner wall of the sliding seat; The clamping rod is fixedly connected to the side wall of the sliding plate through a bolt; the guide assembly is arranged in the sliding seat and used for driving the limiting block and the clamping rod to move.
2. 2. The box girder supporting structure according to claim 1, wherein the guide assembly comprises a sliding block, the side wall of the sliding block is fixedly connected with the sliding block through a bolt, a sliding groove is formed in the inner wall of the sliding block, and the sliding block is slidably connected to the inner wall of the sliding groove.
3. 3. The box girder supporting structure according to claim 1, wherein the guiding assembly further comprises a transverse groove, the transverse groove is formed in the inner wall of the sliding seat, a driving rod is arranged at one end of the inner wall of the transverse groove, a gear is sleeved at the top of the circumferential outer wall of the driving rod, a toothed bar is connected with the circumferential outer wall of the gear in a meshed mode, and a cross rod is coaxially connected with one end of the toothed bar.
4. 4. A girder supporting structure according to claim 3, wherein the outer circumferential wall of the driving rod is sleeved with a ratchet wheel, and the surface of the ratchet wheel is clamped with a driving bar.
5. 5. The box girder supporting structure according to claim 3, wherein the limit block is movably sleeved on the circumferential outer wall of the cross rod, a driving bar is movably connected to the top of the limit block through a bearing, a limit rod is movably connected to one side of the driving bar through a bearing, a limit plate is movably connected to one end of the limit rod through a bearing, and one end of the limit plate is movably connected to the side wall of the limit block through a bearing.
6. 6. The box girder supporting structure according to claim 5, wherein the side wall of the limiting block is movably connected with an abutting plate through a damping bearing, one end of the limiting rod is fixedly connected with a telescopic rod through a bolt, and the bottom of the telescopic rod is fixedly connected to the top of the limiting block through a bolt.
7. 7. The box girder supporting structure according to claim 5, wherein the side wall of the transverse groove is welded with a push block through a spring, and one end of the push block abuts against the limiting block.
8. 8. The box girder supporting structure according to claim 1, wherein a clamping groove I is formed in one side of the sliding plate, the clamping rod is clamped to the inner wall of the clamping groove I, a clamping groove II is formed in the circumferential outer wall of the clamping rod, a clamping block is welded to the circumferential inner wall of the clamping groove I through a spring, and the clamping block is clamped to the inner wall of the clamping groove II.
9. 9. The box girder supporting structure according to claim 8, wherein the number of the clamping rods is plural and distributed at equal intervals, and the number of the sliding plates is plural and distributed symmetrically.
10. 10. A steel girder bridge comprising a girder support structure according to any one of claims 1-9.

Description

Box girder supporting structure and steel box girder bridge comprising same Technical Field The invention relates to the technical field of bridge construction, in particular to a box girder supporting structure and a steel box girder bridge with the structure. Background The steel box girder bridge is a bridge type taking the steel box girder as a main bearing structure, and the structural form is one of main choices in modern large-span bridges, in particular suspension bridges, cable-stayed bridges, urban overpasses and overpasses due to the characteristics of strong bending resistance and torsion resistance, relatively light dead weight, suitability for large-span construction and the like, and in order to support in the construction stage and the requirement of stress of the steel box girder structure, in the pushing construction process of the steel box girder, the box girder supporting structure is a core component for realizing accurate butt joint, stable support and subsequent welding operation of the box girder, and the performance of the box girder supporting structure directly influences the construction precision, the efficiency and the structural safety, so the box girder supporting structure and the steel box girder bridge with the structure are needed in the construction. Although the steel box girder bridge with the box girder supporting structure in the prior art has more beneficial effects, the following problems still exist that extreme weather, such as rain storm snow and the like, is easily encountered in the construction process, and under the extreme weather, the box girders are easily rocked in the conventional state of directly placing and butting the jacks, so that the box girders are easily deviated in the pushing and butting process, the adjacent box girder ends are not tightly attached, gaps exist, the subsequent welding quality is seriously influenced, and the welding operation difficulty is increased. Disclosure of Invention This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application. 1. The technical problems to be solved are as follows: the invention is provided for solving the problems of insufficient box girder butt joint guiding precision and poor joint compactness in the special weather state. 2. The technical scheme is as follows: in order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided: The box girder supporting structure comprises a sliding seat, a box girder movably clamped at the top of the sliding seat, a limiting block movably connected to the side wall of the sliding seat, a sliding plate movably sleeved on the inner wall of the sliding seat, a clamping rod fixedly connected to the side wall of the sliding plate through a bolt, and a guide assembly arranged in the sliding seat and used for driving the limiting block and the clamping rod to move. As a preferable scheme of the invention, the guide assembly comprises a sliding block, the side wall of the sliding plate is fixedly connected with the sliding block through a bolt, a sliding groove is formed in the inner wall of the sliding seat, and the sliding block is connected to the inner wall of the sliding groove in a sliding manner. As a preferable scheme of the invention, the guide assembly further comprises a transverse groove, the transverse groove is formed in the inner wall of the sliding seat, a driving rod is arranged at one end of the inner wall of the transverse groove, a gear is sleeved at the top of the circumferential outer wall of the driving rod, a toothed bar is connected with the circumferential outer wall of the gear in a meshed mode, and a cross rod is coaxially connected with one end of the toothed bar. As a preferable scheme of the invention, a ratchet wheel is sleeved on the circumferential outer wall of the driving rod, and a driving strip is clamped on the surface of the ratchet wheel. As a preferable scheme of the invention, the limit block is movably sleeved on the circumferential outer wall of the cross rod, the top of the limit block is movably connected with the driving bar through a bearing, one side of the driving bar is movably connected with the limit rod through a bearing, one end of the limit rod is movably connected with the limit plate through a bearing, and one end of the limit plate is movably connected with the side wall of the limit block through a bearing. As a preferable scheme of the invention, the side wall of the limiting block is movably connected with the abutting plate through the damping bearing, one end of the limiting rod is fixedly connected with the telescopic rod through a bolt, and the bottom of the