High-speed center parting zone concrete pouring system under island type traffic keeping mode

Abstract

The utility model provides a concrete pouring system for a high-speed median strip in an island type traffic keeping mode, which comprises a precast concrete block arranged in the high-speed median strip, and a first steel pipe column is fixed at the top of the precast concrete block; second steel pipe piles are fixed to the outer portion of one side of the highway through a cast-in-place concrete foundation, double-spliced I-shaped steel is fixed to the tops of the first steel pipe columns and the tops of the second steel pipe piles correspondingly, and a bailey beam stretching across the highway is installed between the tops of the double-spliced I-shaped steel. A ground pump guide pipe used for conveying concrete is installed on the bailey beam, the inlet end of the ground pump guide pipe is connected with a ground pump used for pumping the concrete, the ground pump is arranged on the outer side of the highway, and the outlet end of the ground pump guide pipe is arranged in the area where the high-speed halving zone is located. The purpose of safely and rapidly pouring concrete of the high-speed median strip structure is achieved by building a system crossing a high-speed traffic lane.

Description

Technical Field

[0001] The utility model relates to the field of highway cross-line bridge construction, in particular to a highway center dividing strip concrete pouring system in an island type traffic maintenance mode. Background Art

[0002] Over the past 30 years, my country's national expressway network has been built from scratch, and now it is well connected, which is inseparable from the construction of engineers day and night. The well-connected highway network also brings some troubles to the construction of new expressways. The construction of new highways involving the construction of the existing roads has always been the focus of construction, which not only affects the smooth flow and driving safety of existing roads, but also brings safety hazards to the construction itself. How to prevent safety accidents during construction and ensure construction efficiency and quality is very important.

[0003] The traditional method is for concrete tank trucks to enter through existing highway toll stations and transport concrete to construction sites for operation. This method is feasible, but generally there are problems such as long transportation distances, long times, difficulty in ensuring concrete quality, low construction efficiency, and high driving risks. Utility Model Content

[0004] The purpose of the utility model is to provide a high-speed center divider concrete pouring system under an island-type traffic maintenance mode in response to the above-mentioned problems. By setting up a system that spans the highway traffic lanes, the purpose of safely and quickly pouring the concrete of the high-speed center divider structure can be achieved. This system can effectively solve the problems of long transportation distance, long time, low efficiency, and difficulty in ensuring concrete quality in the conventional high-speed center divider concrete pouring, and also ensure the safe and efficient passage of existing operating highways, greatly improve the efficiency of high-speed center divider concrete pouring and the concrete quality assurance rate, while reducing costs and safety risks.

[0005] In order to realize the above-mentioned technical features, the purpose of the utility model is achieved as follows: a concrete pouring system for a high-speed center divider under an island-type traffic maintenance mode, comprising a precast concrete block arranged in the high-speed center divider, a first steel pipe column is fixed on the top of the precast concrete block; a second steel pipe pile is fixed on the outside of one side of the highway through a cast-in-place concrete foundation, double-piece I-beams are respectively fixed on the top of the first steel pipe column and the second steel pipe pile, a Bailey beam spanning the highway is installed between the tops of the double-piece I-beams; a ground pump conduit for conveying concrete is installed on the Bailey beam, the inlet end of the ground pump conduit is connected to a ground pump for pumping concrete, the ground pump is arranged on the outside of the highway, and the outlet end of the ground pump conduit is arranged in the area where the high-speed center divider is located.

[0006] Both sides of the first steel pipe column and the second steel pipe pile are symmetrically pulled and fixed by steel cable wind ropes, and the other end of the steel cable wind rope is connected to the cable wind rope foundation.

[0007] The Bailey beam is fixedly installed on the top of the double-jointed I-beam through a riding bolt assembly and a connecting steel plate.

[0008] The first steel pipe columns located on the same side and the second steel pipe piles located on the same side are fixedly connected by using diagonally arranged reinforced channel steels.

[0009] The double-jointed I-beams are fixedly supported to the tops of the corresponding first steel pipe columns and second steel pipe piles by I-beam diagonal braces.

[0010] A skybridge structure is set up on the top of the Bailey beam, and the skybridge structure includes an I-beam fixed on the top of the Bailey beam, a patterned steel plate is laid on the top of the I-beam, edge channel steels are fixed on both sides of the top of the patterned steel plate, steel pipe brackets arranged at equal intervals are fixed on the top of the edge channel steels, steel pipe guardrails are fixed between the steel pipe brackets, and steel wire protection nets are arranged between the steel pipe guardrails.

[0011] The vertical section of the ground pump conduit is fixedly supported by a column bracket, and the column bracket is fixed between the cast-in-place concrete foundation and the Bailey beam.

[0012] The ends of the Bailey beams are fixedly connected by angle steels arranged diagonally;

[0013] The edge channel steel is fixedly connected to the I-beam through a saddle bolt assembly.

[0014] The riding bolt assembly comprises a U-shaped screw rod, the bottom end of which passes through a waist-shaped hole on a connecting steel plate, and the bottom end of which is fixed by a nut.

[0015] The utility model has the following beneficial effects:

[0016] 1. A system that spans the highway lanes is built to achieve the goal of safely and quickly pouring concrete for the center divider structure of the highway. This system can effectively solve the problems of long transportation distance, long time, low efficiency, and difficulty in ensuring concrete quality in the pouring of conventional center dividers of highways. It also ensures the safe and efficient passage of existing operating highways, greatly improves the efficiency of pouring concrete in the center divider of highways and the concrete quality assurance rate, while reducing costs and safety risks.

[0017] 2. The stability of the first steel pipe column and the second steel pipe pile is enhanced by adopting the above-mentioned steel cable wind rope.

[0018] 3. The fixing reliability and stability of the Bailey beam are enhanced by the above-mentioned riding bolt assembly.

[0019] 4. The structural stability and reliability between the first steel pipe columns are enhanced by the above-mentioned reinforced channel steel.

[0020] 5. The above-mentioned overpass structure is convenient for subsequent personnel to pass through, and then it is convenient to lay and repair the ground pump conduit 18. The wire protection net and the bridge deck must be closed and no gaps should be left. Asphalt waterproofing should be used to fill the gap to prevent falling objects from high altitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 For this utility model Figure 1 Left view of .

[0024] Figure 3 For this utility model Figure 2 AA section view.

[0025] Figure 4 This is the overall layout diagram of the concrete transportation route from outside the line to inside the line in this utility model.

[0026] Figure 5 For this utility model Figure 4 Partial diagram of the concrete transportation route from outside the line to inside the line.

[0027] Figure 6 This is the front view of the riding bolt assembly of the utility model.

[0028] Figure 7 This is a top view of the connecting steel plates of the utility model.

[0029] In the figure: cable wind rope foundation 1, steel wire cable wind rope 2, cast-in-place concrete foundation 3, precast concrete block 4, first steel pipe column 5, connecting steel plate 6, riding bolt assembly 7, double I-beam 8, Bailey beam 9, patterned steel plate 10, edge channel steel 11, steel pipe protective railing 12, steel wire protective net 13, I-beam diagonal brace 14, angle steel 15, steel pipe bracket 16, column bracket 17, ground pump guide tube 18, off-site concrete tank truck 19, reinforced channel steel 20, I-beam 21, ground pump 22, in-plant concrete tank truck 23, second steel pipe pile 24;

[0030] U-shaped screw 701 , nut 702 , waist-shaped hole 703 . DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0032] See also Figure 1-7A concrete pouring system for a high-speed median divider in an island-type traffic maintenance mode includes a precast concrete block 4 arranged in the high-speed median divider, a first steel pipe column 5 is fixed on the top of the precast concrete block 4; a second steel pipe pile 24 is fixed on the outside of one side of the highway through a cast-in-place concrete foundation 3, double-piece I-beams 8 are respectively fixed on the tops of the first steel pipe column 5 and the second steel pipe pile 24, and a Bailey beam 9 across the highway is installed between the tops of the double-piece I-beams 8; a ground pump conduit 18 for conveying concrete is installed on the Bailey beam 9, the inlet end of the ground pump conduit 18 is connected to a ground pump 22 for pumping concrete, the ground pump 22 is arranged on the outside of the highway, and the outlet end of the ground pump conduit 18 is arranged in the area where the high-speed median divider is located. In the utility model, by adopting the above-mentioned system, in the island-type traffic maintenance mode, the middle of the highway is surrounded by traffic to form an isolated island, and the concrete outside the highway can be transported to the existing highway line by a ground pump 22 along the simple overpass across the highway formed by the steel pipe column 5 and the Bailey beam 9 through the pump pipe 18, and then transported to the construction site inside the line by the concrete tank truck 19 for construction work.

[0033] Furthermore, by using a cast-in-place concrete foundation 3 on the outside of the highway, the central dividing strip foundation is small and difficult to cast-in-place, and needs to be chiseled out later, and it takes time to wait for the concrete strength, which increases the time and danger of construction within the line. Therefore, precast concrete blocks 4 are used to be directly hoisted into place, saving time and effort.

[0034] Furthermore, both sides of the first steel pipe column 5 and the second steel pipe pile 24 are symmetrically pulled and fixed by steel cable wind ropes 2, and the other ends of the steel cable wind ropes 2 are connected to the wind rope foundation 1. The stability of the first steel pipe column 5 and the second steel pipe pile 24 is enhanced by using the steel cable wind ropes 2.

[0035] Further, the Bailey beam 9 is fixedly mounted on the top of the double-jointed I-beam 8 by means of the riding bolt assembly 7 and the connecting steel plate 6. By means of the riding bolt assembly 7, the fixing reliability and stability of the Bailey beam 9 are enhanced.

[0036] Furthermore, the first steel pipe columns 5 and the second steel pipe piles 24 on the same side are fixedly connected by diagonally arranged reinforcing channel steels 20. The structural stability and reliability of the first steel pipe columns 5 are enhanced by the reinforcing channel steels 20.

[0037] Furthermore, the double I-beam 8 is fixedly supported between the top of the corresponding first steel pipe column 5 and the second steel pipe pile 24 by an I-beam diagonal brace 14. The stability and reliability of the support of the double I-beam 8 are ensured by the above-mentioned I-beam diagonal brace 14.

[0038] Furthermore, a skybridge structure is set up on the top of the Bailey beam 9, and the skybridge structure includes an I-beam 21 fixed on the top of the Bailey beam 9, a patterned steel plate 10 is laid on the top of the I-beam 21, and edge channel steels 11 are fixed on both sides of the top of the patterned steel plate 10. Steel pipe brackets 16 arranged at equal intervals are fixed on the top of the edge channel steels 11, and steel pipe guardrails 12 are fixed between the steel pipe brackets 16, and steel wire guardrails 13 are arranged between the steel pipe guardrails 12. The above-mentioned skybridge structure is convenient for subsequent personnel to pass through, and then it is convenient to lay and repair the ground pump conduit 18. The steel wire guardrail 13 and the bridge deck must be closed and no gaps are left. It is filled with asphalt waterproofing to prevent falling objects from high altitude.

[0039] Furthermore, the vertical section of the ground pump conduit 18 is fixedly supported by a column bracket 17, and the column bracket 17 is fixed between the cast-in-place concrete foundation 3 and the Bailey beam 9. The column bracket 17 ensures stable and reliable support for the ground pump conduit 18.

[0040] Furthermore, the end portions of the Bailey beam 9 are fixedly connected via angle steels 15 arranged diagonally; the structural strength of the Bailey beam 9 is enhanced by the angle steels 15 .

[0041] Furthermore, the edge channel steel 11 is fixedly connected to the I-beam 21 by means of the riding bolt assembly 7. The riding bolt assembly 7 enhances the reliable fixing support of the edge channel steel 11.

[0042] Furthermore, the riding bolt assembly 7 includes a U-shaped screw 701, the bottom end of the U-shaped screw 701 passes through a waist-shaped hole 703 on the connecting steel plate 6, and the bottom end of the U-shaped screw 701 is fixed by a nut 702. The riding bolt assembly 7 ensures reliable fixed connection of corresponding components, and facilitates position adjustment and fixation during installation.

[0043] The specific implementation process and principle of this utility model:

[0044] See also Figure 4-5 By closing the overtaking lanes on both sides, the highway is surrounded by traffic to form an isolated island, ensuring the safety of construction in the closed area. According to the on-site construction requirements, the model of Bailey Beam 9 needs to be determined according to the span and load-bearing weight, and must meet the bearing capacity requirements. During construction, the overpass structure is set up at a suitable location according to the on-site construction site. The foundation is poured first, and the embedded parts are buried in advance, and then installed step by step from bottom to top. Bailey Beam 9 can be prefabricated outside the line and then directly hoisted to reduce on-site installation time.

[0045] The utility model has been tested in practice. The concrete outside the highway can be transported to the existing highway line by a ground pump 22 along the steel pipe column and Bailey beam cross-highway inner and outer overpass structure through the ground pump conduit 18, and then transported to the construction site inside the line by the concrete tanker 23 in the line factory for construction work; the advantages of greatly reducing the concrete transportation time, improving the concrete quality, simple and fast installation, good safety and low cost are achieved; and the problem that the construction area is far away from the highway toll station, the construction efficiency is greatly reduced due to concrete transportation, the construction quality cannot be guaranteed, and the problem that the smooth flow and driving safety of the existing highway cannot be guaranteed is solved.

Claims

1. A high-speed center-dividing belt concrete pouring system in an island-type traffic-protection mode, characterized in that: The invention comprises a precast concrete block (4) arranged in a median strip of a highway, a first steel pipe column (5) being fixed on the top of the precast concrete block (4); a second steel pipe pile (24) being fixed on the outside of one side of the highway through a cast-in-place concrete foundation (3); a double-jointed I-beam (8) being fixed on the top of the first steel pipe column (5) and the second steel pipe pile (24), a Bailey beam (9) being installed across the highway between the tops of the double-jointed I-beam (8); a ground pump conduit (18) for conveying concrete being installed on the Bailey beam (9), the inlet end of the ground pump conduit (18) being connected to a ground pump (22) for pumping concrete, the ground pump (22) being arranged outside the highway, and the outlet end of the ground pump conduit (18) being arranged in the area where the median strip of the highway is located.

2. According to the island-type traffic-protection method of claim 1, the high-speed center-dividing belt concrete pouring system is characterized by: Both sides of the first steel pipe column (5) and the second steel pipe pile (24) are symmetrically pulled and fixed using steel wire cable wind ropes (2), and the other ends of the steel wire cable wind ropes (2) are connected to the wind rope foundation (1).

3. According to the island-type traffic-protection method of claim 1, the high-speed center-dividing belt concrete pouring system is characterized by: The Bailey beam (9) is fixedly mounted on the top of the double-jointed I-beam (8) via a riding bolt assembly (7) and a connecting steel plate (6).

4. According to the island-type traffic-protection method of claim 1, the high-speed center-dividing belt concrete pouring system is characterized by: The first steel pipe columns (5) located on the same side and the second steel pipe piles (24) located on the same side are fixedly connected by using diagonally arranged reinforcing channel steels (20).

5. According to the island-type traffic-protection method of claim 1, the high-speed center-dividing zone concrete pouring system is characterized by: The double-jointed I-beam (8) is fixedly supported by an I-beam diagonal brace (14) between the corresponding first steel pipe column (5) and the top of the second steel pipe pile (24).

6. According to the island-type traffic-protection method of claim 1, the high-speed center-dividing belt concrete pouring system is characterized by: A skybridge structure is built on the top of the Bailey beam (9), the skybridge structure comprising an I-beam (21) fixed to the top of the Bailey beam (9), a patterned steel plate (10) is laid on the top of the I-beam (21), edge channel steels (11) are fixed on both sides of the top of the patterned steel plate (10), steel pipe brackets (16) arranged at equal intervals are fixed on the top of the edge channel steels (11), steel pipe guardrails (12) are fixed between the steel pipe guardrails (12), and steel wire protection nets (13) are arranged between the steel pipe guardrails (12).

7. According to the island-type traffic-protection method of claim 1, the high-speed center-dividing zone concrete pouring system is characterized by: The vertical section of the ground pump conduit (18) is fixedly supported by a column bracket (17), and the column bracket (17) is fixed between the cast-in-place concrete foundation (3) and the Bailey beam (9).

8. According to claim 6, a high-speed center-dividing zone concrete pouring system in an island-type traffic-protection mode, characterized in that: The end portions of the Bailey beam (9) are fixedly connected via diagonally arranged angle steels (15); The edge channel steel (11) is fixedly connected to the I-beam (21) via a riding bolt assembly (7).

9. A high-speed center-dividing zone concrete pouring system in an island-type traffic-protection mode according to claim 3 or 8, characterized in that: The riding bolt assembly (7) comprises a U-shaped screw rod (701), the bottom end of the U-shaped screw rod (701) passes through a waist-shaped hole (703) on the connecting steel plate (6), and the bottom end of the U-shaped screw rod (701) is fixed by a nut (702).

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