Bridge curtain board, cable trough vertical wall and protection wall integrated device and construction method

Abstract

The invention relates to the technical field of bridge deck construction, and provides a bridge curtain board, cable trough vertical wall and protective wall integrated device which comprises a plurality of combined steel formworks, portal frames are arranged at the top ends of the combined steel formworks, and the adjacent combined steel formworks are detachably connected. The combined steel formwork comprises a side wall curved plate, a side wall side plate, two vertical wall side plates, a protective wall inclined plate and a protective wall vertical plate. A bridge curtain board, a cable trough vertical wall and a protective wall are poured into an integral formwork, construction is conducted as a whole, unified cast-in-place is conducted, the tool can reduce cross contamination in construction, the construction efficiency is improved, the construction procedures are optimized, curtain board hoisting is reduced, the construction safety is improved, and the construction cost is reduced. Meanwhile, the strength and durability of the bridge deck system are remarkably improved through the method, the bridge deck system can bear larger loads and risks, and therefore the quality of the bridge deck system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge deck construction, and particularly to an integral integrated device and construction method for bridge parapets, cable trough vertical walls and protective walls. Background Technique

[0002] At present, in China's high-speed railway bridges, the protective walls and vertical walls of the bridge deck adopt cast-in-place reinforced concrete structures; the parapets are precast reinforced concrete structures, and are connected to the beam body by cast-in-place concrete to form a whole. According to the research results of the construction and operation status of high-speed railway bridges, for the traditional prefabrication and installation of bridge deck parapets and the separate construction of the three walls, a large number of steel bars are pre-embedded in the flange plates of the vertical walls and protective walls in advance, resulting in conflicts with the longitudinal and transverse steel bars of the beam body flange plates. Moreover, the reserved exposed parts are exposed to the natural environment for a long time, being easily collided by mechanical equipment and corroded. There are problems such as complicated processes, tight construction periods, great difficulty in concrete transportation, difficult construction quality control, and high construction safety risks.

[0003] Therefore, in order to solve the above problems, on the basis of traditional construction techniques and experience, the present invention conducts bold innovative practices, designs an integral cast-in-place tooling for the bridge deck system, and coordinates with the construction method designed for the tooling to construct the bridge parapets, cable trough vertical walls and protective walls as one process to solve the problems existing in the prior art. Summary of the Invention

[0004] To achieve the above purposes, the present invention is realized through the following technical solutions: An integral integrated device for bridge parapets, cable trough vertical walls and protective walls includes a plurality of combined steel formworks. The tops of the plurality of combined steel formworks are all provided with gantries, and the plurality of adjacent combined steel formworks are detachably connected;

[0005] The combined steel formwork includes a side wall curved panel, side wall side plates, two vertical wall side plates, a protective wall inclined plate and a protective wall vertical plate. The combined steel formwork and the gantry are connected through adjustable components, and a support and adjustable support component is further provided at the bottom of the gantry;

[0006] The gantry includes two cross bars and two longitudinal bars. Two support components are provided at the bottom of each cross bar. One support component is located between the side wall side plate and the vertical wall side plate, and the other support component is located on one side of the protective wall vertical plate.

[0007] Preferably, a side wall pouring area is formed between the side wall curved panel and the side wall side plates, a vertical wall pouring area is formed between the two vertical wall side plates, a protective wall pouring area is formed between the protective wall inclined plate and the protective wall vertical plate, and cable troughs are formed on both sides of the vertical wall pouring area.

[0008] Preferably, the bottom end of the side wall curved panel is designed in a U shape, which facilitates the connection between the bottom end of the side wall curved panel and the flange plate of the bridge.

[0009] Preferably, the adjustable assembly includes a turnbuckle and high-strength precision rolled thread steel. The side wall side plates and two vertical wall side plates of the side wall curved panel are respectively connected to the gantry through turnbuckles, and the inclined protection wall plate and the vertical protection wall plate are respectively connected to the gantry through high-strength precision rolled thread steel.

[0010] Preferably, a plurality of adjacent combined steel formworks are connected by partition steel plates to form an integral formwork, and both ends of the integral formwork are closed by end plates.

[0011] Preferably, the support assembly includes a square tube main body and a support foot, and an adjustable screw rod is threadedly connected between the square tube main body and the support foot.

[0012] Preferably, the partition steel plate and the combined steel formwork are filled with rigid foam boards.

[0013] A construction method for an integral device of a bridge parapet, cable trough vertical wall and protection wall includes the following operation steps:

[0014] S1. In the processing workshop, according to the required number of plate components, accurately and precisely process the side wall curved panel, side wall side plate, vertical wall side plate, inclined protection wall plate and vertical protection wall plate to form a combined steel formwork;

[0015] S2. Connect the processed combined steel formwork to the gantry, and add an adjustable assembly and a support assembly between the combined steel formwork and the gantry;

[0016] S3. During construction, hoist the integral formwork onto the beam surface according to the measurement and lofting results, fix the integral formwork to the beam surface after calibrating the position, and connect the bottom end of the side wall curved panel to the flange plate of the beam surface;

[0017] S4. Pour concrete into the side wall pouring area, vertical wall pouring area and protection wall pouring area to form an integral structure.

[0018] It has the following beneficial effects:

[0019] In the present invention, the pouring of the bridge parapet, cable trough vertical wall and protection wall is made into an integral formwork and constructed as a whole for unified in-situ casting. This tooling can reduce cross-contamination during construction, improve construction efficiency, optimize construction procedures, reduce the hoisting of parapets, improve construction safety, and at the same time significantly improve the strength and durability of the bridge deck system, enabling it to withstand greater loads and risks, thereby improving the quality of the bridge deck system. Description of the Drawings

[0020] Figure 1 It is the overall design diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the blocking plate in the present invention;

[0022] Figure 3 is a schematic diagram of the door frame in the present invention;

[0023] Figure 4 It is a side view and a front view schematic diagram of the side wall curved panel and the side wall side panel in the present invention;

[0024] Figure 5 It is a side view and a front view schematic diagram of the vertical wall side plate in the present invention;

[0025] Figure 6 It is a side view and a front view schematic diagram of the inclined plate and the vertical plate of the protective wall in the present invention.

[0026] Among them, 1. Combined steel formwork; 11. Side wall curved panel; 12. Side wall side panel; 13. Vertical wall side panel; 14. Protective wall inclined panel; 15. Protective wall vertical panel; 16. Turnbuckle screw; 17. High-precision rolled threaded steel; 18. Square tube; 181. Square tube body; 182. Support foot; 183. Adjustable screw; 2. Door frame; 21. Cross bar; 22. Longitudinal bar; 3. Blocking plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figures 1 - 6 As shown, an integrated device of a bridge shield, a cable trough vertical wall and a protective wall comprises a plurality of combined steel templates 1, a door frame 2 is arranged at the top of each of the plurality of combined steel templates 1, and a plurality of adjacent combined steel templates 1 are connected by a partition steel plate to form an integrated template, and the two ends of the integrated template are closed by a blocking plate 3;

[0030] The combined steel formwork 1 includes a side wall curved panel 11, a side wall side panel 12, two vertical wall side panels 13, a protective wall inclined panel 14 and a protective wall vertical panel 15. The combined steel formwork 1 is connected to the door frame 2 through an adjustable component, and the bottom of the door frame 2 is also provided with an adjustable supporting component 18 for support.

[0031] A side wall casting area is formed between the side wall curved panel 11 and the side wall side plate 12, a vertical wall casting area is formed between the two vertical wall side plates 13, and a parapet wall casting area is formed between the parapet wall inclined plate 14 and the parapet wall vertical plate 15. Cable channels are formed on both sides of the vertical wall casting area, thus realizing the integral casting of the bridge parapet (side wall), the cable channel vertical wall and the parapet wall. The bottom end of the side wall curved panel 11 is designed in a U shape, which is convenient for connecting the bottom end of the side wall curved panel 11 to the flange plate of the bridge (such as Figure 1 ), thus realizing integral casting. The adjustable assembly includes turnbuckles 16 and precision rolled threaded steel bars 17. The side wall curved panel 11, the side wall side plate 12 and the two vertical wall side plates 13 are respectively connected to the gantry 2 through turnbuckles 16, and the parapet wall inclined plate 14 and the parapet wall vertical plate 15 are respectively connected to the gantry 2 through precision rolled threaded steel bars 17. The length of the turnbuckle 16 itself is adjustable, and its telescopic stroke is 220 mm. At the same time, the precision rolled threaded steel bar 17 can also be adjusted in length. Together with the adjustable support assembly 18, the overall formwork can be adjusted according to the actual situation.

[0032] The gantry 2 includes two cross bars 21 and two longitudinal bars 22 (such as Figure 3 ). Two support assemblies 18 are arranged at the bottom of each cross bar 21. One support assembly 18 is located between the side wall side plate 12 and the vertical wall side plate 13, and the other support assembly 18 is located on one side of the parapet wall vertical plate 15, so that the overall formwork can be stably supported. The support assembly 18 includes a square tube main body 181 and a support foot 182. An adjustable screw rod 183 is threadedly connected between the square tube main body 181 and the support foot 182. In this way, the overall height of the support assembly 18 can be adjusted by rotating the adjustable screw rod 183, so that it can be used for combined steel formworks 1 of different heights. In construction projects, steel formworks of 775 mm and 950 mm are commonly used.

[0033] The partition steel plate and the combined steel formwork 1 are filled with rigid foam boards. The shape of the partition steel plate is the same as that of the plug plate 3. The thickness of the rigid foam board is 1 cm, which makes it more convenient and easy to disassemble the partition steel plate.

[0034] The present invention adopts a modular steel formwork 1, and each component of the formwork is accurately and precisely processed by a component processing workshop, and is assembled into a whole through a door frame 2. The overall height adjustment of the formwork is composed of a 60*60mm square tube support component 18 and a precision-rolled threaded steel bar 17, which is supported on the beam surface. During construction, first, the whole is hoisted onto the beam surface according to the measurement and lofting results, and the bolts are tightened after the position is calibrated. Subsequently, the embedded parts are installed and fixed. The length of a single section of the formwork is 1.98m, and it is fixed with an integral partition steel plate connection. A 1cm thick hard foam board is set in the middle to fill the partition board, so that the partition board can be quickly removed. The bottom of the side wall curved panel 11 adopts a U-shaped design to effectively connect the formwork with the bottom of the flange plate, so that the whole is cast in one time. This method effectively improves labor productivity and construction quality, while simplifying the construction process.

[0035] The present invention has been successfully applied to the "three-wall" construction of the YKYGZQ-7 bridge deck system of the newly-built Chongqing-Kunming high-speed railway Yunnan-Guizhou section station front project. In the construction process of the high-speed railway bridge shield, cable trough vertical wall and protective wall, this integral cast-in-place tooling has been used, which has the advantages of high construction quality, high degree of standardization, simplified process, fast construction efficiency, shortened construction period, safety and reliability, and significant economic benefits.

[0036] Embodiment 2:

[0037] An integrated construction method for a bridge shield, a cable trough vertical wall and a protective wall includes the following specific operation steps:

[0038] S1. Through the processing workshop, according to the required number of plates, the side wall curved plate 11, the side wall side plate 12, the vertical wall side plate 13, the protective wall inclined plate 14 and the protective wall vertical plate 15 are accurately and precisely processed to form a combined steel formwork 1;

[0039] S2, connecting the processed combined steel formwork 1 with the door frame 2, and adding an adjustable component and a support component 18 between the combined steel formwork 1 and the door frame 2;

[0040] S3. During construction, the integral formwork is hoisted onto the beam surface according to the measurement and setting-out results, the integral formwork is fixed to the beam surface after the position is calibrated, and the bottom end of the side wall curved panel 11 is connected to the flange plate of the beam surface;

[0041] S4. Pour concrete in the side wall casting area, the vertical wall casting area and the protective wall casting area to form an integral whole.

[0042] Since the integral formwork is composed of a plurality of combined steel formworks 1, when disassembling the mold, it is only necessary to disassemble it section by section from one end. By disassembling the partition steel plates, the adjacent combined steel formworks 1 are separated, and the combined steel formworks 1 can be disassembled section by section.

[0043] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device of bridge shield, cable trough vertical wall and protective wall, characterized in that: It comprises a plurality of combined steel formworks (1), each of the plurality of combined steel formworks (1) being provided with a door frame (2) at the top end, and the plurality of adjacent combined steel formworks (1) being detachably connected; The combined steel formwork (1) comprises a side wall curved panel (11), a side wall side panel (12), two vertical wall side panels (13), a protective wall inclined panel (14) and a protective wall vertical panel (15); the combined steel formwork (1) is connected to the door frame (2) via an adjustable component; and a supporting component (18) for supporting and being adjustable is also provided at the bottom of the door frame (2); The door frame (2) comprises two cross bars (21) and two longitudinal bars (22), and two support assemblies (18) are arranged at the bottom of each cross bar (21), wherein one support assembly (18) is located between the side wall side plate (12) and the vertical wall side plate (13), and the other support assembly (18) is located on one side of the protective wall vertical plate (15).

2. The integrated device of bridge shield, cable trough vertical wall and protective wall according to claim 1 is characterized in that: A side wall casting area is formed between the side wall curved panel (11) and the side wall side panel (12), a vertical wall casting area is formed between the two vertical wall side panels (13), a protective wall casting area is formed between the protective wall inclined panel (14) and the protective wall vertical panel (15), and cable troughs are formed on both sides of the vertical wall casting area.

3. The integrated device of bridge shield, cable trough vertical wall and protective wall according to claim 1 is characterized in that: The bottom end of the side wall curved panel (11) is designed in a U shape, so that the bottom end of the side wall curved panel (11) is conveniently connected to the flange plate of the bridge.

4. The integrated device of bridge shield, cable trough vertical wall and protective wall according to claim 1 is characterized in that: The adjustable components include turnbuckle screws (16) and precision-rolled threaded steel bars (17); the side wall curved panel (11), the side wall side panels (12) and the two vertical wall side panels (13) are respectively connected to the door frame (2) via turnbuckle screws (16); the protective wall inclined panel (14) and the protective wall vertical panel (15) are respectively connected to the door frame (2) via precision-rolled threaded steel bars (17).

5. The integrated device of bridge shield, cable trough vertical wall and protective wall according to claim 1 is characterized in that: A plurality of adjacent combined steel formworks (1) are connected by partition steel plates to form an integral formwork, and both ends of the integral formwork are closed by blocking plates (3).

6. The integrated device of bridge shield, cable trough vertical wall and protective wall according to claim 1 is characterized in that: The support assembly (18) comprises a square tube body (181) and a support foot (182), and an adjustable screw rod (183) is threadedly connected between the square tube body (181) and the support foot (182).

7. The integrated device of bridge shield, cable trough vertical wall and protective wall according to claim 1 is characterized in that: The partition steel plate and the combined steel formwork (1) are filled with a hard foam board.

8. A construction method for an integrated device of a bridge shield, a cable trough vertical wall and a protective wall, according to a bridge shield, a cable trough vertical wall and a protective wall integrated device as described in claims 1-7, characterized in that: The steps are as follows: S1. In a processing workshop, according to the required number of panels, the side wall curved panels (11), the side wall side panels (12), the vertical wall side panels (13), the protection wall inclined panels (14) and the protection wall vertical panels (15) are accurately and precisely processed to form a combined steel formwork (1); S2, connecting the processed combined steel formwork (1) to the door frame (2), and adding an adjustable component and a supporting component (18) between the combined steel formwork (1) and the door frame (2); S3, during construction, the integral formwork is hoisted onto the beam surface according to the measurement and layout results, the integral formwork is fixed to the beam surface after the position is calibrated, and the bottom end of the side wall curved panel (11) is connected to the flange plate of the beam surface; S4. Pour concrete in the side wall casting area, the vertical wall casting area and the protective wall casting area to form an integral whole.

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