CN105568786B

CN105568786B - Overhanging combination box track roof beam suspension system of suspension type monorail transit bottom plate

Info

Publication number: CN105568786B
Application number: CN201610088050.9A
Authority: CN
Inventors: 朱尔玉; 褚海瑞; 倪源城
Original assignee: Beijing Jiaotong University
Current assignee: Beijing Jiaotong University
Priority date: 2015-11-10
Filing date: 2016-02-17
Publication date: 2024-05-10
Anticipated expiration: 2036-02-17
Also published as: CN105568786A

Abstract

The invention discloses a suspension system of a suspension type monorail traffic bottom plate overhanging combined box type track beam, which is applied to the suspension type monorail traffic system, replaces the existing steel box type track beam and steel upright post in a steel structure form, and improves the bearing capacity, deformation and durability of the track beam. During erection, a fixing support (5-1) is arranged on a first base (7-1), a first inhaul cable (6-1) sequentially penetrates through a first bridge pier bent cap (2-1) and the first base (7-1), is tensioned and anchored on the top surface of the first bridge pier bent cap (2-1), and a bottom plate overhanging combined box-type track beam (1) is suspended below the first bridge pier bent cap (2-1); installing a movable support (5-2) on a second base (7-2), enabling a second inhaul cable (6-2) to sequentially penetrate through a second bridge pier bent cap (2-2) and the second base (7-2), tensioning and anchoring the second inhaul cable to the top surface of the second bridge pier bent cap (2-2), and hanging a combined box-shaped track beam (1) with an overhanging bottom plate below the second bridge pier bent cap (2-2); thus forming a suspension type bottom plate overhanging combined box type track beam suspension system.

Description

Overhanging combination box track roof beam suspension system of suspension type monorail transit bottom plate

Technical Field

The invention relates to a suspension system of a suspension type monorail traffic bottom plate overhanging combined box type track beam, in particular to a suspension system formed by suspending a track beam below a bridge pier capping beam by using a guy cable, a base and a support in the suspension type monorail traffic system.

Background

The german Eugen Langen invents suspended monorail traffic in 1893 and built 13.3km of suspended monorail in the city of the famous suspended car in the german luer Wu Pada city (Wupppertaler) in 1898-1901, which is the earliest in the world and is also the longest in history. Since then, suspended monorail railways of a certain mileage have been successively built by Duttmond, dulcet, qianlike city of Japan, kanesin county, etc. At present, a formally operated suspended type monorail transit line does not exist in China, and the Chongqing straddle type monorail transit line is a few monorail transit lines in China.

The existing civil structures such as the track beam and the bridge pier in the suspension type monorail traffic system are mostly in the form of steel structures, namely, steel box beams are adopted as the track beam, and the track beam is suspended in the air through steel upright posts. The steel track beam is simply supported on the corresponding two metal supports on the steel bridge pier bent cap through two metal support legs arranged outside the steel box beam, so that a steel box beam simple support stress system is formed. The stress system has the advantages that the stress buckling phenomenon is easy to occur due to the small thickness of the steel plate of the steel box beam, so that the load of a vehicle borne by the stress system is small, the shock resistance is unfavorable, the rail beam is easy to generate larger deformation, and the linear control of the rail beam is not facilitated; the metal structure is also prone to corrosion, affecting its durability.

Disclosure of Invention

The invention aims to solve the problems that:

The suspended type single-track traffic bottom plate overhanging combined box-type track beam suspension system replaces the existing steel box-type track beam and steel upright post in the form of steel structure, and the suspended type single-track traffic bottom plate overhanging combined box-type track beam suspension system has the advantages of large vehicle load, favorable shock resistance, small track beam deformation, favorable linear control of the track beam and high durability.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a overhanging combination box track roof beam suspension of suspension type monorail transit bottom plate, including the overhanging combination box track roof beam of bottom plate (1), pier bent cap (2-2), concrete pier stud (3-1), concrete pier stud (3-2), pier foundation (4-1), pier foundation (4-2), fixed bolster (5-1), movable bolster (5-2), cable (6-1), cable (6-2), base (7-1), base (7-2), characterized by: installing a fixed support (5-1) on a first base (7-1), enabling a first inhaul cable (6-1) to sequentially penetrate through a first bridge pier bent cap (2-1) and the first base (7-1), tensioning and anchoring the first inhaul cable to the top surface of the first bridge pier bent cap (2-1), and hanging a combined box-shaped track beam (1) with an overhanging bottom plate below the first bridge pier bent cap (2-1); installing a movable support (5-2) on a second base (7-2), enabling a second inhaul cable (6-2) to sequentially penetrate through a second bridge pier bent cap (2-2) and the second base (7-2), tensioning and anchoring the second inhaul cable to the top surface of the second bridge pier bent cap (2-2), and hanging a combined box-shaped track beam (1) with an overhanging bottom plate below the second bridge pier bent cap (2-2); thus forming a suspension type bottom plate overhanging combined box type track beam suspension system.

The beneficial effects of the invention are as follows:

The utility model provides a overhanging combination box track roof beam suspension of suspension type monorail transit bottom plate has replaced current steel box track roof beam and the steel stand of steel structural style, prevents that the steel box roof beam from taking place the atress buckling phenomenon, increases the ability and the shock resistance that bear the weight of the vehicle load, reduces the deformation of track roof beam, is favorable to the linear control of track roof beam, improves the durability of track roof beam.

Drawings

FIG. 1 is a schematic view of a suspension system of an overhanging combined box-type track beam of a suspended monorail traffic floor.

Fig. 2 is a schematic diagram of connection between a fixed support end track beam and a pier capping beam.

FIG. 3 is a schematic diagram of the connection of a movable support end rail beam and a pier capping beam.

In the figure: 1-a bottom plate overhanging combined box-type track beam; 2-1 is a bridge pier capping beam I; 2-bridge pier cap beam II; 3-1, a concrete pier column I; 3-2 concrete piers II; 4-1-pier foundation I; 4-2-pier foundation two; 5-1, fixing the support; 5-2, a movable support; 6-1, a first guy cable; 6-2-inhaul cable II; 7-1, a first base; 7-2, a second base.

Detailed Description

The invention is further illustrated by way of example.

An example of a suspended monorail transportation system adopts a bottom plate overhanging combined box type track beam suspension system, and comprises a bottom plate overhanging combined box type track beam 1, a pier capping beam 2-2, a concrete pier column 3-1, a concrete pier column 3-2, a pier foundation 4-1, a pier foundation 4-2, a fixed support 5-1, a movable support 5-2, a guy cable 6-1, a guy cable 6-2, a base 7-1 and a base 7-2.

And step 1, binding a reinforcement cage of a concrete top plate and a concrete bottom plate of the bottom plate outwards-extending combined box-type track beam 1 in a factory prefabrication stage, and installing and fixing corrugated steel webs at web positions at two sides of the bottom plate outwards-extending combined box-type track beam 1. Meanwhile, a first base 7-1 and a second base 7-2 are placed at the design positions of the two ends of the top plate reinforcement cage, and top plate and bottom plate concrete are poured to form a bottom plate overhanging combined box-type track beam 1.

And 2, finishing the manufacture of the bridge pier structure on site, wherein the bridge pier structure comprises a first bridge pier foundation 4-1, a second bridge pier foundation 4-2, a first concrete pier column 3-1, a second concrete pier column 3-2, a first bridge pier capping beam 2-1 and a second bridge pier capping beam 2-2, as shown in figure 1.

Step 3, in the girder erection stage, transporting the prefabricated bottom plate overhanging combined box-type track girder 1 to an erection site, and hoisting the bottom plate overhanging combined box-type track girder 1 to a design position below the pier capping girders 1 and 2-2; then the fixed support 5-1 and the movable support 5-2 are respectively connected below the first bridge pier bent cap 2-1 and the second bridge pier bent cap 2-2 according to the design positions; the first inhaul cable 6-1 sequentially passes through the first bridge pier capping beam 2-1 and the first base 7-1, and is tensioned and anchored on the top surface of the first bridge pier capping beam 2-1, as shown in fig. 2; and a second inhaul cable 6-2 sequentially passes through the second bridge pier bent cap 2-2 and the second base 7-2 and is tensioned and anchored on the top surface of the second bridge pier bent cap 2-2, as shown in fig. 3. Thus forming a suspension type bottom plate overhanging combined box type track beam suspension system.

The foregoing description is only a preferred embodiment of the present patent, and is not intended to limit the present patent in any way, and any simple modification, equivalent variation and variation made to the above embodiment according to the technical matter of the present patent still fall within the scope of the technical solution of the present patent. The patent has novelty and practicability and meets the requirements, so that patent application is proposed according to law.

Claims

1. The utility model provides a overhanging combination box track roof beam suspension of suspension type monorail transit bottom plate, including the overhanging combination box track roof beam of bottom plate (1), pier bent cap (2-2), concrete pier stud (3-1), concrete pier stud (3-2), pier foundation (4-1), pier foundation (4-2), fixed bolster (5-1), movable bolster (5-2), cable (6-1), cable (6-2), base (7-1), base (7-2), characterized by: installing a fixed support (5-1) on a first base (7-1), enabling a first inhaul cable (6-1) to sequentially penetrate through a first bridge pier bent cap (2-1) and the first base (7-1), tensioning and anchoring the first inhaul cable to the top surface of the first bridge pier bent cap (2-1), and hanging a combined box-shaped track beam (1) with an overhanging bottom plate below the first bridge pier bent cap (2-1); installing a movable support (5-2) on a second base (7-2), enabling a second inhaul cable (6-2) to sequentially penetrate through a second bridge pier bent cap (2-2) and the second base (7-2), tensioning and anchoring the second inhaul cable to the top surface of the second bridge pier bent cap (2-2), and hanging a combined box-shaped track beam (1) with an overhanging bottom plate below the second bridge pier bent cap (2-2); thus forming a suspension type bottom plate overhanging combined box type track beam suspension system.