Construction supporting device for bridge engineering concrete bridge deck slab and using method

Abstract

The invention relates to the technical field of concrete bridge deck slab supporting, in particular to a construction supporting device for a bridge engineering concrete bridge deck slab and a using method. Comprising a panel, a bottom supporting mechanism arranged at the bottom of the panel and side supporting mechanisms arranged on the two sides of the panel. The bottom supporting mechanism comprises a first box chamber inner support, a second box chamber inner support and a box chamber supporting system arranged between the first box chamber inner support and the second box chamber inner support. The side supporting mechanism is arranged on a left side supporting plate and a right side supporting plate on the two sides of the panel. According to the construction operation platform for the concrete bridge deck slab, the construction operation platform for the concrete bridge deck slab is arranged through the deck slab, main body supporting of the deck slab is achieved through the bottom supporting mechanism and the side supporting mechanism, and safety protection of the deck slab is achieved through the left side protective fence and the right side protective fence; the technical problem of using the whole on-site lap joint frame to carry out full-span supporting is solved, and the construction supporting installation efficiency of the steel-concrete composite beam concrete bridge deck is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete bridge deck support, and in particular to a construction support device for a concrete bridge deck of a bridge engineering and a use method thereof. Background Art

[0002] The application of steel-concrete composite beams in bridge engineering has a wide range, good status and prospects, and significant advantages. This technology combines the high tensile strength of steel and the high compressive strength of concrete, making the steel-concrete composite beam have excellent bearing capacity and can meet the requirements of various complex working conditions. Compared with pure concrete bridges, steel-concrete composite beams have a lighter weight, which can reduce the pressure of the bridge on the foundation and reduce the cost of foundation treatment. Therefore, it is widely used in urban overpasses, pedestrian bridges, viaducts and other areas.

[0003] The construction process of steel-concrete composite beams is relatively complicated, requiring high-precision construction technology and strict quality control, including reliable connection between steel beams and concrete, pouring and maintenance of concrete, etc., and the application scenarios usually have high traffic demands. If traditional steel pipe fastener scaffolding or disc-type scaffolding is used as a construction support device for concrete bridge decks, there are the following technical defects: large construction process investment, long process cycle, more construction land occupies space, and greater damage to traffic needs.

[0004] The traditional construction method occupies too much space under the beam body, and the safety of the construction operation platform is relatively poor. Therefore, there is an urgent need for a support device that can improve the construction support and installation efficiency of the intermediate pier viaduct cap beam. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a construction support device and a use method for a concrete bridge deck of a bridge engineering, thereby improving the construction support and installation efficiency of an intermediate pier viaduct cap beam.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A construction support device for a concrete bridge deck of a bridge engineering, comprising a deck, a bottom support mechanism arranged at the bottom of the deck, and side support mechanisms arranged at both sides of the deck;

[0007] The bottom support mechanism includes a first box indoor support, a second box indoor support, and an inter-box support system arranged between the first box indoor support and the second box indoor support;

[0008] The side support mechanism is arranged on a left support plate and a right support plate on both sides of the panel, a first diagonal brace is provided at the bottom of the left support plate, a second diagonal brace is provided at the bottom of the right support plate, a left guardrail is provided on the upper side of the left support plate, and a right guardrail is provided on the upper side of the right support plate.

[0009] Furthermore, the first box indoor bracket and the second box indoor bracket have the same structure, and are both composed of a horizontal rod, a longitudinal rod, a vertical scissors brace, and a horizontal scissors brace.

[0010] Furthermore, a transverse bracket is provided at the bottom end of the inter-chamber support system, and the transverse bracket includes an I-beam and double-jointed angle steels provided at both ends of the I-beam, and the double-jointed angle steels are respectively connected to the first box room inner bracket and the second box room inner bracket.

[0011] Furthermore, one end of the first diagonal brace is connected to the left support plate, and the other side is connected to the first box inner bracket; one end of the second diagonal brace is connected to the right support plate, and the other side is connected to the second box inner bracket.

[0012] Furthermore, the left support plate is rotatably connected to the panel, the first diagonal brace is movably connected to the left support plate, and is rotatably connected to the first box chamber inner bracket, the end of the first diagonal brace is rotatably connected to the first slider, the left support plate is provided with a first slide groove, the first slider is slidably connected to the first slide groove, and the first diagonal brace is also provided with a first power assist mechanism.

[0013] Furthermore, the first assist mechanism includes a first connecting rod rotatably connected to the first diagonal support, a first movable block rotatably connected to the other end of the first connecting rod, and a first screw threadedly connected to the first movable block. The first movable block and the first screw are arranged in a first movable seat, both ends of the first screw are rotatably connected to the first movable seat, the first movable seat is fixedly connected to the first box chamber inner bracket, and a first rotating handle is provided at the end of the first screw.

[0014] Furthermore, the right side support plate is rotatably connected to the panel, the second diagonal brace is movably connected to the right side support plate, and is rotatably connected to the second box chamber inner bracket, the end of the second diagonal brace is rotatably connected to a second slider, a second slide groove is provided on the right side support plate, the second slider is slidably connected to the second slide groove, and a second power assist mechanism is also provided on the second diagonal brace.

[0015] Furthermore, the second assist mechanism includes a second connecting rod rotatably connected to the second diagonal support, a second movable block rotatably connected to the other end of the second connecting rod, and a second screw threadedly connected to the second movable block. The second movable block and the second screw are arranged in a second movable seat, both ends of the second screw are rotatably connected to the second movable seat, the second movable seat is fixedly connected to the second chamber inner bracket, and a second rotating handle is provided at the end of the second screw.

[0016] Furthermore, the double angle steel is connected to the first box indoor bracket and the second box indoor bracket by quick-locking screws;

[0017] The quick-lock screw comprises a screw and an Ω-shaped spring sheet, grooves are arranged on both sides of the end of the screw, a through hole is arranged on the top of the Ω-shaped spring sheet, and the screw is inserted into the Ω-shaped spring sheet through the through hole.

[0018] A method for using a construction support device for a concrete bridge deck of a bridge engineering,

[0019] After the main beam of the steel box girder is erected on site, the transverse bracket is installed, the I-beam is placed horizontally, and connected with the double angle steel by welding. The spacing along the bridge is consistent with the spacing of the main beam ear plate. The intermediate bracket, namely the first box room bracket, the second box room bracket and the box room support system are set up in the box room and on the bracket. The steel pipe support system adopts a fastener steel pipe frame support system, which includes multiple layers of cross bars, longitudinal bars, vertical scissors braces and top-level horizontal scissors braces. Wooden pads are laid above the intermediate brackets according to the elevation, square timbers are placed on the wooden pads, and wood plywood panels are installed on the square timbers. The wooden pads, square timbers and plywood panels above the middle bracket and the side brackets are used as a pouring operation platform and bottom formwork. When installing the bottom formwork of the bridge deck above the inter-chamber support system, the wires must be drawn in the longitudinal and transverse directions to ensure that the chamfers are linearly smooth and beautiful after demolding. The left support plate, the right support plate, the first diagonal brace and the second diagonal brace are installed, and the spacing on both sides is kept consistent with the spacing of the main beam ear plates. A left guardrail is set on the left support plate, and a right guardrail is set on the right support plate. The height of the guardrail is greater than 1.5m, forming a side protection system for the support device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention realizes the setting of a construction operation platform for a concrete bridge deck through the panel, realizes the main body support of the panel through the bottom support mechanism and the side support mechanism, realizes the safety protection of the panel through the left guardrail and the right guardrail, solves the technical problem of using an integral on-site lap joint frame for full-span support, and improves the construction support and installation efficiency of the steel-concrete composite beam concrete bridge deck; the first diagonal brace and the second diagonal brace provide stable lower support for the left support plate and the right support plate, and at the same time provide a spatial foundation for the erection of edge protection, thereby reducing the construction volume, shortening the construction period, and reducing the construction site area; the first box indoor bracket, the second box indoor bracket and the box room support system provide stable main body support for the laying of the panel and subsequent construction, and realize the setting of a flat-plate construction platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the main structure of the first box indoor bracket in Example 1 of the present invention;

[0024] Figure 3This is a schematic diagram of a top view of the structure of the first box indoor bracket in Example 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the side view of the structure of the first box indoor bracket in Example 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of the front structural view of the transverse bracket of Example 1 of the present invention;

[0027] Figure 6 This is a schematic diagram of the side structure of the transverse bracket of Example 1 of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the power assist mechanism of Embodiment 2 of the present invention;

[0029] Figure 8 This is a schematic diagram of the connection structure of the quick-locking screw in Example 3 of the present invention;

[0030] Fig. 9 This is a schematic diagram of the disassembled structure of the quick-locking screw in Example 3 of the present invention;

[0031] Description of the numbers in the figure:

[0032] Panel 1, bottom support mechanism 2, first diagonal brace 3, second diagonal brace 4, first box room bracket 5, second box room bracket 6, inter-box room support system 7, cross bar 8, longitudinal bar 9, vertical scissors brace 10, horizontal scissors brace 11, left guardrail 12, right guardrail 13, horizontal bracket 14, I-beam 15, double angle steel 16, left support plate 17, right support plate 18, slider 19, connecting rod 20, moving block 21, screw 22, moving seat 23, rotating handle 24, screw 25, Ω-shaped spring piece 26, groove 27. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] like Figure 1-6As shown, a construction support device for a concrete bridge deck of a bridge engineering project includes a deck 1, a bottom support mechanism 2 arranged at the bottom of the deck 1, and side support mechanisms arranged on both sides of the deck 1; the construction operation platform setting of the concrete bridge deck is realized through the deck 1, and the main body support of the deck 1 is realized through the bottom support mechanism 2 and the side support mechanism, which solves the technical problem of using an integral on-site bridging frame for full-span support, thereby improving the construction support and installation efficiency of the steel-concrete composite beam concrete bridge deck.

[0036] The bottom support mechanism 2 includes a first box room support 5, a second box room support 6, and an inter-box room support system 7 arranged between the first box room support 5 and the second box room support 6; the first box room support 5 and the second box room support 6 have the same structure, both consisting of a horizontal bar 8, a longitudinal bar 9, a vertical scissors brace 10, and a horizontal scissors brace 11. A horizontal bracket 14 is provided at the bottom end of the inter-box room support system 7, and the horizontal bracket 14 includes an I-beam 15 and double-jointed angle steels 16 arranged at both ends of the I-beam 15, and the double-jointed angle steels 16 are respectively connected to the first box room support 5 and the second box room support 6. The horizontal bracket 14 realizes the reinforcement connection of the two box rooms, provides a stable lower support for the inter-box room fastener steel pipe support system, saves the space under the beam occupied by the traditional scaffolding construction method, and alleviates the traffic pressure in the construction area.

[0037] The side support mechanism includes a left support plate 17 and a right support plate 18 arranged on both sides of the panel 1. The bottom of the left support plate 17 is provided with a first diagonal brace 3, and the bottom of the right support plate 18 is provided with a second diagonal brace 4, so as to achieve a stable support for the wing plate part of the panel 1. The upper side of the left support plate 17 is provided with a left guardrail 12, and the upper side of the right support plate 18 is provided with a right guardrail 13, so as to achieve a stable connection between the edge protection facilities and the support system, reduce the difficulty of safety protection in the later construction, improve the construction safety, and further ensure the safety of workers. One end of the first diagonal brace 3 is connected to the left support plate 17, and the other side is connected to the first box indoor support 5; one end of the second diagonal brace 4 is connected to the right support plate 18, and the other side is connected to the second box indoor support 6.

[0038] A method for using a construction support device for a concrete bridge deck of a bridge engineering,

[0039] After the main beam of the steel box girder is erected on site, the transverse bracket 14 is installed, the I-beam 15 is placed transversely, and connected with the double angle steel 16 by welding. The spacing along the bridge is consistent with the spacing of the main beam ear plate. The bottom support mechanism 2, namely the first box room bracket 5, the second box room bracket 6 and the box room support system 7 are set up in the box room and on the bracket. The steel pipe support system adopts a fastener steel pipe frame support system, including multi-layer cross bars 8, longitudinal bars 9, vertical scissors braces 10 and transverse scissors braces 11. Wooden pads are laid above the bottom support mechanism according to the elevation, square timbers are placed on the wooden pads, and wood plywood panels are installed on the square timbers. The wooden pads, square timbers and plywood panels above the upper and lower support mechanisms are used as a pouring operation platform and bottom formwork. When installing the bottom formwork of the bridge deck above the inter-chamber support system 7, wires must be drawn in the longitudinal and transverse directions to ensure that the chamfers are linearly smooth and beautiful after demolding. The left support plate 17, the right support plate 18, the first diagonal brace 3, and the second diagonal brace 4 are installed, and the spacing on both sides is kept consistent with the spacing between the main beam ear plates. A left guardrail 12 is set on the left support plate 17, and a right guardrail 13 is set on the right support plate 18. The height of the guardrail is greater than 1.5m, forming a side protection system of the support device.

[0040] Embodiment 2:

[0041] This embodiment is the same as the embodiment 1 and will not be described in detail, except that:

[0042] like Figure 7 As shown, the left support plate 17 is rotatably connected to the panel 1, the first diagonal brace 3 is movably connected to the left support plate 17 and is rotatably connected to the first box indoor bracket 5, the right support plate 18 is rotatably connected to the panel 1, the second diagonal brace 4 is movably connected to the right support plate 18 and is rotatably connected to the second box indoor bracket 6,

[0043] The ends of the first diagonal brace 3 and the second diagonal brace 4 are both rotatably connected with a slider 19, the left support plate 17 and the right support plate 18 are both provided with a slide groove, the slider 19 is slidably connected with the slide groove, and the first diagonal brace 3 and the second diagonal brace 4 are also provided with a power-assisting mechanism. The power-assisting mechanism includes a connecting rod 20 rotatably connected with the first diagonal brace 3 or the second diagonal brace 4, a moving block 21 rotatably connected with the other end of the connecting rod 20, and a screw 22 threadedly connected with the moving block 21. The moving block 21 and the screw 22 are arranged in a moving seat 23, the two ends of the screw 3 are rotatably connected with the moving seat 23, the moving seat 23 is fixedly connected with the first box indoor bracket 5 or the second box indoor bracket 6, and the end of the screw 22 is provided with a rotating handle 24.

[0044] Directions:

[0045] When the angle between the left support plate 17 or the right support plate 18 and the panel 1 needs to be adjusted, the rotating handle 24 is turned, the screw 22 is rotated, and the moving block 21 moves along the screw 22, driving the connecting rod 20 to move and change the angle, and at the same time, the slider 19 slides along the slide groove, thereby changing the angle between the left support plate 17 or the right support plate 18 and the panel 1 to adapt to various usage needs.

[0046] Embodiment 3:

[0047] This embodiment is the same as the embodiment 1 and will not be described in detail, except that:

[0048] like Figure 8-9 As shown, the double-jointed angle steel 16 is connected to the first box indoor bracket 5 and the second box indoor bracket 6 through quick-locking screws; the quick-locking screws include a screw 25 and an Ω-shaped spring piece 26, grooves 27 are provided on both sides of the end of the screw 25, and a through hole is provided on the top of the Ω-shaped spring piece 26, and the screw 25 is inserted into the Ω-shaped spring piece 26 through the through hole.

[0049] Directions:

[0050] When connecting the double angle steel 16 with the first box indoor bracket 5 and the second box indoor bracket 6, insert the screw 25 through the double angle steel 16 and the first box indoor bracket 5 or the second box indoor bracket 6, insert the screw 25 into the Ω-shaped spring piece 26 on the other side and pass it out, rotate the screw 25 so that the groove 27 on the screw 25 is stuck on both sides of the lower end of the Ω-shaped spring piece 26, so that the screw 25 cannot be detached, thereby achieving fixation.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction support device for a concrete bridge deck of a bridge engineering, characterized in that: It includes a panel, a bottom support mechanism arranged at the bottom of the panel, and side support mechanisms arranged at both sides of the panel; The bottom support mechanism includes a first box indoor support, a second box indoor support, and an inter-box support system arranged between the first box indoor support and the second box indoor support; The side support mechanism includes a left support plate and a right support plate arranged on both sides of the panel, a first diagonal brace is provided at the bottom of the left support plate, a second diagonal brace is provided at the bottom of the right support plate, a left guardrail is provided on the upper side of the left support plate, and a right guardrail is provided on the upper side of the right support plate.

2. The construction support device for the concrete bridge deck of a bridge engineering according to claim 1 is characterized in that: The first box indoor bracket and the second box indoor bracket have the same structure, and are both composed of a horizontal bar, a longitudinal bar, a vertical scissors brace, and a horizontal scissors brace.

3. The construction support device for concrete bridge deck of bridge engineering according to claim 1 is characterized in that: A transverse bracket is provided at the bottom end of the inter-chamber support system, and the transverse bracket includes an I-beam and double-jointed angle steels provided at both ends of the I-beam, and the double-jointed angle steels are respectively connected to the first chamber inner bracket and the second chamber inner bracket.

4. The construction support device for the concrete bridge deck of a bridge engineering according to claim 1, characterized in that: One end of the first oblique brace is connected to the left support plate, and the other side is connected to the first box indoor bracket; one end of the second oblique brace is connected to the right support plate, and the other side is connected to the second box indoor bracket.

5. The construction support device for concrete bridge deck of bridge engineering according to claim 1, characterized in that: The left side support plate is rotatably connected to the panel, the first diagonal brace is movably connected to the left side support plate and is rotatably connected to the first box chamber inner bracket, the end of the first diagonal brace is rotatably connected to the first slider, the left side support plate is provided with a first slide groove, the first slider is slidably connected to the first slide groove, and the first diagonal brace is also provided with a first power assist mechanism.

6. The construction support device for the concrete bridge deck of a bridge engineering according to claim 5 is characterized by: The first assist mechanism includes a first connecting rod rotatably connected to the first diagonal support, a first movable block rotatably connected to the other end of the first connecting rod, and a first screw threadedly connected to the first movable block. The first movable block and the first screw are arranged in a first movable seat, both ends of the first screw are rotatably connected to the first movable seat, the first movable seat is fixedly connected to the first chamber inner bracket, and a first rotating handle is provided at the end of the first screw.

7. The construction support device for concrete bridge deck of bridge engineering according to claim 1, characterized in that: The right side support plate is rotatably connected to the panel, the second diagonal brace is movably connected to the right side support plate and rotatably connected to the second box chamber inner bracket, the end of the second diagonal brace is rotatably connected to a second slider, a second slide groove is provided on the right side support plate, the second slider is slidably connected to the second slide groove, and a second power assist mechanism is also provided on the second diagonal brace.

8. The construction support device for concrete bridge deck of bridge engineering according to claim 7 is characterized by: The second assist mechanism includes a second connecting rod rotatably connected to the second diagonal support, a second movable block rotatably connected to the other end of the second connecting rod, and a second screw threadedly connected to the second movable block. The second movable block and the second screw are arranged in a second movable seat, and both ends of the second screw are rotatably connected to the second movable seat. The second movable seat is fixedly connected to the second chamber inner bracket, and a second rotating handle is provided at the end of the second screw.

9. The construction support device for concrete bridge deck of bridge engineering according to claim 3, characterized in that: The double angle steel is connected to the first box indoor bracket and the second box indoor bracket by quick-locking screws; The quick-lock screw comprises a screw and an Ω-shaped spring sheet, grooves are arranged on both sides of the end of the screw, a through hole is arranged on the top of the Ω-shaped spring sheet, and the screw is inserted into the Ω-shaped spring sheet through the through hole.

10. The method for using the construction support device for a concrete bridge deck of a bridge engineering according to any one of claims 1 to 9, characterized in that: After the main beam of the steel box girder is erected on site, the transverse bracket is installed, the I-beam is placed horizontally, and connected with the double angle steel by welding. The spacing along the bridge is consistent with the spacing of the main beam ear plate. The first box room bracket, the second box room bracket and the box room support system are set up in the box room and on the bracket. The steel pipe support system adopts a fastener steel pipe frame support system, which includes multiple layers of horizontal bars, longitudinal bars, vertical scissors braces and horizontal scissors braces. Wooden pads are laid above the bottom support mechanism according to the elevation, square timbers are placed on the wooden pads, and wood plywood panels are installed on the square timbers. The bottom support mechanism The panel is composed of wooden pads, square timbers and plywood above the structure and the side support mechanism, which is used as a pouring operation platform and bottom formwork. When installing the bottom formwork of the bridge deck above the box-chamber support system, wires must be drawn in the longitudinal and transverse directions to ensure that the chamfers are linearly smooth and beautiful after demolding. The left support plate, the right support plate, the first diagonal brace and the second diagonal brace are installed, and the spacing on both sides is kept consistent with the spacing of the main beam ear plates. A left guardrail is set on the left support plate, and a right guardrail is set on the right support plate. The height of the guardrail is greater than 1.5m, forming a side protection system for the support device.

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