Movable combined adjustable support

Abstract

The utility model discloses a movable combined adjustable support, and relates to the technical field of bridge construction. Comprising a supporting mechanism, a folding type trussed beam platform and a platform walking mechanism. The supporting mechanism comprises a cross beam, an inclined strut, a hoop, an upper supporting key and a lower supporting key; the upper supporting key and the lower supporting key are fixed to the side wall of a pier, and the hoop is tightly held on the side wall of the pier and abuts against the top of the lower supporting key. The two cross beams are arranged in parallel and distributed on the two sides of the bridge pier. The beams are perpendicular to the passing direction of the bridge. The cross beam is connected with the hoop through two inclined struts; the bottom of the cross beam abuts against the upper supporting key. A plurality of sand cylinder seat beams are arranged at the tops of the two cross beams and are perpendicular to the cross beams, and sand cylinder supports are arranged at the tops of the sand cylinder seat beams. A pier body supporting mode is adopted, the folding type trussed girder platform is supported on the supporting mechanism fixed on the pier body, the folding type trussed girder platform is not affected by terrains, and the folding type trussed girder platform has the advantages of being easy to assemble, high in adaptability, short in construction period, safe, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and particularly relates to a mobile combined adjustable support. Background Art

[0002] The cast-in-situ beam bridge with high piers is a common bridge type in construction. Generally, the construction scheme adopts the full hall support method or the beam-column support method. The full hall support scheme has a relatively mature process and rich support materials. However, the full hall support has high requirements for the bearing capacity of the foundation, high costs for foundation reinforcement treatment, and it is difficult to ensure the safety of the support when the scaffolding is too high. At the same time, it causes difficulties in scaffolding erection, long construction periods, and high labor and support material costs. For the beam-column support scheme, the foundation reinforcement requirements for the temporary piers in the middle of the span are high and the costs are large. When erecting the longitudinal beam, large lifting equipment needs to be used, resulting in long construction periods, poor safety, and high construction costs. Moreover, the higher the pier column, the greater the investment in the above two schemes. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a mobile combined adjustable support to solve the above problems.

[0004] To achieve the above purpose, the utility model provides a mobile combined adjustable support, including

[0005] A support mechanism fixed to the upper part of the bridge pier; the support mechanism includes a cross beam, a diagonal brace, a hoop, an upper support key and a lower support key; the upper support key and the lower support key are both fixed on the side wall of the bridge pier, the hoop is fastened to the side wall of the bridge pier, and the bottom of the hoop abuts against the top of the lower support key; there are two cross beams, the two cross beams are arranged in parallel and distributed on both sides of the bridge pier; the cross beam is perpendicular to the traffic direction of the bridge; the cross beam and the hoop are connected by two diagonal braces; the bottom of the cross beam abuts against the top of the upper support key; a plurality of sand cylinder seat beams are arranged on the tops of the two cross beams, the sand cylinder seat beams are perpendicular to the cross beam, and sand cylinder supports are arranged on the tops of the sand cylinder seat beams;

[0006] A folding truss beam platform arranged on the support mechanism;

[0007] A platform walking mechanism arranged between the support mechanism and the folding truss beam platform.

[0008] Further, the folding truss beam platform is composed of a plurality of truss beams arranged side by side; the truss beams are located on the sand cylinder supports; a plurality of rotating truss pieces are connected between adjacent two truss beams; one end of the rotating truss piece is hinged to one of the truss beams, and the other end of the rotating truss piece is detachably connected to the other truss beam.

[0009] Further, an inverted triangle strengthened load-bearing rod mechanism or an inverted trapezoid strengthened load-bearing rod mechanism is arranged at the bottom of the truss beam; the inverted triangle strengthened load-bearing rod mechanism or the inverted trapezoid strengthened load-bearing rod mechanism is located in the bridge span.

[0010] Further, the inverted triangle reinforced load-bearing rod mechanism includes two telescopic tie rods and a vertical rod arranged between the two telescopic tie rods. One end of the telescopic tie rod is hinged to the truss beam, and the other end is hinged to the bottom of the vertical rod; the top of the vertical rod is slidably connected to the truss beam.

[0011] Further, the inverted trapezoid reinforced load-bearing rod mechanism includes two telescopic tie rods, two vertical rods arranged between the two telescopic tie rods, and a cross rod arranged between the two vertical rods. One end of the telescopic tie rod is hinged to the truss beam, and the other end is hinged to the bottom of the adjacent vertical rod; the top of the vertical rod is slidably connected to the truss beam; both ends of the cross rod are respectively hinged to the bottoms of the two vertical rods.

[0012] Further, the platform traveling mechanism includes a trolley and a track. The track is arranged on the sand cylinder seat beam and is perpendicular to the sand cylinder seat beam; wheels adapted to the track are arranged at the bottom of the trolley, and a roller for supporting the truss beam is rotatably arranged at the top of the trolley; the axis of the roller is parallel to the track.

[0013] Further, the two cross beams are connected by a connecting member.

[0014] The utility model has the following beneficial effects:

[0015] The utility model adopts the support method of pier body. The folding truss beam platform is supported on the support mechanism fixed on the pier body, which is not affected by the terrain and has the characteristics of simple assembly, strong adaptability, short construction period, safety, and low cost. Description of the Drawings

[0016] Figure 1 is a schematic diagram of a mobile combined adjustable support proposed by the utility model;

[0017] Figure 2 is a schematic diagram of the inverted triangle reinforced load-bearing rod mechanism of a mobile combined adjustable support proposed by the utility model;

[0018] Figure 3 is a schematic diagram of the inverted trapezoid reinforced load-bearing rod mechanism of a mobile combined adjustable support proposed by the utility model;

[0019] Figure 4 is a schematic diagram of the platform traveling mechanism of a mobile combined adjustable support proposed by the utility model.

[0020] In the figure: 1 - support mechanism; 2 - folding girder platform; 3 - inverted triangle reinforced load-bearing rod mechanism; 4 - inverted trapezoid reinforced load-bearing rod mechanism; 5 - platform traveling mechanism; 11 - cross beam; 12 - upper support key; 13 - diagonal brace; 14 - hoop; 15 - lower support key; 16 - sand barrel seat beam; 17 - sand barrel support; 21 - girder; 22 - rotating girder piece; 31 - telescopic tie rod; 32 - vertical rod; 43 - cross bar; 51 - trolley; 52 - track; 53 - idler roller; 54 - wheel. Specific implementation manner

[0021] To achieve the above-mentioned purposes and effects, the technical means and structures adopted by the present utility model will be described in detail in combination with the drawings for the preferred embodiments of the present utility model to explain its features and functions.

[0022] As Figures 1-4 shown, the present utility model provides a mobile combined adjustable support, including a support mechanism 1 fixed to the upper part of the pier, a folding girder platform 2 arranged on the support mechanism 1; and a platform traveling mechanism 5 arranged between the support mechanism 1 and the folding girder platform 2;

[0023] The support mechanism 1 includes a cross beam 11, a diagonal brace 13, a hoop 14, an upper support key 12 and a lower support key 15; the upper support key 12 and the lower support key 15 are both fixed on the side wall of the pier, the hoop 14 is tightly held on the side wall of the pier, and the bottom of the hoop 14 abuts against the top of the lower support key 15; there are two cross beams 11, the two cross beams 11 are arranged in parallel and distributed on both sides of the pier; the cross beam 11 is perpendicular to the traffic direction of the bridge; the cross beam 11 and the hoop 14 are connected by two diagonal braces 13; the bottom of the cross beam 11 abuts against the top of the upper support key 12; a plurality of sand barrel seat beams 16 are arranged on the top of the two cross beams 11, the sand barrel seat beam 16 is perpendicular to the cross beam 11, and a sand barrel support 17 is arranged on the top of the sand barrel seat beam 16.

[0024] Adopting the form of segment construction, when the cast-in-place beam construction of this segment is completed, the folding girder platform 2 slides to the next segment through the platform traveling mechanism 5, progresses span by span, and is constructed in sequence, reducing the construction cost.

[0025] The present utility model adopts the support method of the pier body. The folding girder platform is supported on the support mechanism fixed on the pier body, is not affected by the terrain, and has the characteristics of simple assembly, strong adaptability, short construction period, safety, and low cost. The entire support mechanism is attached to the support pier column, and all construction loads are transferred to the pier column through the support keys, and no temporary piers are set up.

[0026] In another embodiment, the collapsible girder platform 2 is composed of a plurality of girders 21 arranged side by side; the girders 21 are located on the sand barrel supports 17; a plurality of rotating gusset plates 22 are connected between adjacent two girders 21; one end of the rotating gusset plate 22 is hinged to one of the girders 21, and the other end of the rotating gusset plate 22 is detachably connected to the other girder 21. By adding the foldable rotating gusset plates 22 on the girders 21, when the girders 21 are moved into place, the rotating gusset plates are opened to form a support system. Before the adjustable brackets travel, the rotating gusset plates 22 are rotated to form a traveling system, effectively shortening the construction period.

[0027] In another embodiment, an inverted triangle reinforced load-bearing rod mechanism 3 or an inverted trapezoid reinforced load-bearing rod mechanism 4 is provided at the bottom of the girder 21; the inverted triangle reinforced load-bearing rod mechanism 3 or the inverted trapezoid reinforced load-bearing rod mechanism 4 is located between the bridge spans. Through the inverted triangle reinforced load-bearing rod mechanism 3 or the inverted trapezoid reinforced load-bearing rod mechanism 4, the load-bearing capacity of the girder 21 is increased, and it is no longer necessary to set up temporary piers at the mid-span.

[0028] To facilitate the movement of the girder 21, both the inverted triangle reinforced load-bearing rod mechanism 3 and the inverted trapezoid reinforced load-bearing rod mechanism 4 adopt a foldable form:

[0029] The inverted triangle reinforced load-bearing rod mechanism 3 includes two telescopic tie rods 31 and a vertical rod 32 arranged between the two telescopic tie rods 31. One end of the telescopic tie rod 31 is hinged to the girder 21, and the other end is hinged to the bottom of the vertical rod 32; the top of the vertical rod 32 is slidably connected to the girder 21.

[0030] The inverted trapezoid reinforced load-bearing rod mechanism 4 includes two telescopic tie rods 41, two vertical rods 32 arranged between the two telescopic tie rods 31, and a cross rod 43 arranged between the two vertical rods 32. One end of the telescopic tie rod 31 is hinged to the girder 21, and the other end is hinged to the bottom of the adjacent vertical rod 32; the top of the vertical rod 32 is slidably connected to the girder 21; both ends of the cross rod 43 are respectively hinged to the bottoms of the two vertical rods 32.

[0031] In the support state, the vertical rod 32 is in a vertical state, the top end of the vertical rod 32 is pin-connected and fixed to the girder 21, and the telescopic tie rod 31 is tightened. When folding, the fixing pin at the top end of the vertical rod 32 is pulled out, the vertical rod 32 slides along the girder 21, and at the same time the telescopic tie rod 31 contracts until the vertical rod 32 and the telescopic tie rod 31 are located inside the girder 21, completing the folding; after folding, it does not affect the movement of the girder 21.

[0032] When the span is relatively small, the inverted triangle reinforced load-bearing rod mechanism 3 can be adopted. When the span is relatively large, the inverted trapezoid reinforced load-bearing rod mechanism 4 can be adopted. The inverted trapezoid reinforced load-bearing rod mechanism 4 can be extended on the basis of the inverted triangle reinforced load-bearing rod mechanism 3.

[0033] In another embodiment, the platform traveling mechanism 5 includes a trolley 51 and a track 52. The track 52 is arranged on the sand cylinder seat beam 16 and is perpendicular to the sand cylinder seat beam 16. Wheels 54 adapted to the track 52 are provided at the bottom of the trolley 51, and a roller 53 for carrying the truss beam 21 is rotatably provided at the top of the trolley 51. The axis of the roller 53 is parallel to the track 52.

[0034] During the construction state, the truss beam 21 is located on the sand cylinder support 17. When the cast-in-place beam of this section is completed and the folding truss beam platform 2 needs to slide to the next section, a jack is placed on the sand cylinder seat beam 16. The truss beam 21 is slightly lifted by the jack, the sand cylinder support 17 is removed, then the track 52 is placed on the sand cylinder seat beam 16, the trolley 51 is placed on the track 52 and moved below the truss beam 21, and then the jack is depressurized to make the truss beam 21 fall onto the trolley 51, and then it can slide and travel. After sliding to the next section and in place, the truss beam 21 is slightly lifted by the jack, the trolley 51 and the track 52 are removed, the sand cylinder support 17 is reinstalled, and then the jack is depressurized to make the truss beam 21 fall onto the sand cylinder support 17, and then the cast-in-place beam construction of this section can be started.

[0035] The two-way travel of the folding truss beam platform 2 is successfully realized through the trolley 51 and the track 52, meeting the requirement of the folding truss beam platform 2 for curved travel and achieving the purpose of constructing a curved beam.

[0036] In another embodiment, the two cross beams 11 are connected by a connecting member to enhance the structural strength.

[0037] The above are only the preferred embodiments of the present invention, not all embodiments. Anyone should know that the structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all belong to the protection scope of the present invention.

Claims

1. A movable combined adjustable bracket, characterized in that: include A support mechanism fixed on the upper part of the pier; the support mechanism includes a crossbeam, a diagonal brace, a hoop, an upper support key and a lower support key; the upper support key and the lower support key are both fixed on the side wall of the pier, the hoop is tightly clamped on the side wall of the pier, and the bottom of the hoop abuts against the top of the lower support key; two crossbeams are provided, and the two crossbeams are arranged in parallel and distributed on both sides of the pier; the crossbeam is perpendicular to the passage direction of the bridge; the crossbeam and the hoop are connected by two diagonal braces; the bottom of the crossbeam abuts against the top of the upper support key; a plurality of sand tube seat beams are provided on the top of the two crossbeams, the sand tube seat beams are perpendicular to the crossbeams, and a sand tube support is provided on the top of the sand tube seat beam; A foldable truss platform disposed on a supporting structure; The platform walking mechanism is arranged between the supporting mechanism and the folding type truss platform.

2. A movable combined adjustable bracket as claimed in claim 1, characterized in that: The foldable truss platform is composed of a plurality of trusses arranged side by side; the trusses are located on a sand tube support; two adjacent trusses are connected by a plurality of rotating truss pieces; one end of the rotating truss piece is hinged to one of the trusses, and the other end of the rotating truss piece is detachably connected to another truss.

3. A movable combined adjustable bracket as claimed in claim 2, characterized in that: An inverted triangle reinforced load-bearing rod mechanism or an inverted trapezoidal reinforced load-bearing rod mechanism is arranged at the bottom of the truss beam; the inverted triangle reinforced load-bearing rod mechanism or the inverted trapezoidal reinforced load-bearing rod mechanism is located between the spans of the bridge.

4. A movable combined adjustable bracket as claimed in claim 3, characterized in that: The inverted triangle reinforced load-bearing rod mechanism includes two telescopic pull rods and a vertical rod arranged between the two telescopic pull rods, one end of the telescopic pull rod is hinged to the truss, and the other end is hinged to the bottom of the vertical rod; the top of the vertical rod is slidably connected to the truss.

5. The movable combined adjustable bracket according to claim 3, characterized in that: The inverted trapezoidal reinforced load-bearing rod mechanism includes two telescopic pull rods, two vertical rods arranged between the two telescopic pull rods, and a cross rod arranged between the two vertical rods. One end of the telescopic pull rod is hinged to the truss, and the other end is hinged to the bottom of the adjacent vertical rod; the top of the vertical rod is slidably connected to the truss; and the two ends of the cross rod are respectively hinged to the bottom of the two vertical rods.

6. A movable combined adjustable bracket according to any one of claims 2 to 5, characterized in that: The platform walking mechanism includes a trolley and a track, wherein the track is arranged on the sand cylinder seat beam and is perpendicular to the sand cylinder seat beam; wheels adapted to the track are arranged at the bottom of the trolley, and rollers for carrying trusses are rotatably arranged at the top of the trolley; the axis of the roller is parallel to the track.

7. The movable combined adjustable bracket according to claim 1, characterized in that: The two beams are connected via a connecting piece.

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