CN217266895U

CN217266895U - Pedestrian overpass pier

Info

Publication number: CN217266895U
Application number: CN202220969971.7U
Authority: CN
Inventors: 刘昌文; 冯灿; 刘定凤
Original assignee: China 19th Metallurgical Group Co ltd; China 19th Metallurgical Corp Chengdu Construction Co ltd
Current assignee: China 19th Metallurgical Group Co ltd; China 19th Metallurgical Corp Chengdu Construction Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-23
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a pedestrian overpass pier, which comprises at least two tubular columns which are arranged in a V shape in an inclined way, wherein the bottom of each tubular column is connected with a ground foundation, the top of each tubular column is connected with a pedestrian overpass foundation, and a cross beam is fixedly connected between the two tubular columns; the joint of the pipe column and the ground foundation is provided with a lower reinforcing structure, and the joint of the pipe column and the pedestrian bridge foundation is provided with an upper reinforcing structure; the pipe column is a hollow pipe column which is internally provided with an internal reinforcing structure and is filled with concrete. The utility model improves the integral stability and strength of the pedestrian overpass pier; the tubular column that adopts as pier major structure adopts the cavity tubular column of packing concrete, and the component volume that needs to prepare is less, can effectively avoid traditional reinforced concrete structure to arouse because of the compounding various defects, and the construction of tubular column pouring concrete is more swift, manufacturing cost is lower than reinforced concrete structure's pouring work, need not maintain simultaneously, can further practice thrift manpower and material resources, shorten construction cycle.

Description

Pedestrian overpass pier

Technical Field

The utility model belongs to the technical field of the traffic building technique and specifically relates to a pedestrian overpass pier.

Background

The pedestrian overpass is also called a pedestrian overpass, and is generally built in a section with large traffic flow and dense pedestrians, or on intersections, squares and railways. The pedestrian overpass can be used for pedestrians to pass through, is used for avoiding collision when traffic flow and pedestrian flow planes are intersected, ensures that the pedestrians pass through safely and reduces traffic accidents.

At present, the pier of the pedestrian overpass generally adopts a reinforced concrete structure, and the pier of the pedestrian overpass in the form has good compression resistance, but has poor ductility and can be seriously damaged under the action of earthquake or external force. The pier with the reinforced concrete structure has the advantages that due to the fact that various components in the mixture have density difference and are mixed by various aggregates, when the concrete pier structure is prone to have the defects of cracks, bubbles, watermarks, color spots and the like in different degrees due to uneven stirring, irregular pouring or bulging process and the like, the surface attractiveness of the pier is affected, and the strength of the pier structure can be endangered; in addition, the construction period of the pier of the reinforced concrete structure is long, the concrete needs to be maintained, and uncontrollable factors of a construction site are more.

Patent document with publication number CN 201546167U discloses a steel structure bridge pier of an overpass, which relates to a steel structure bridge pier of the overpass, which can be assembled and disassembled quickly. The to-be-solved technical problem of the utility model is to provide a steel construction pier of overpass that crosses street that can fast assembly and dismantle, can erect this steel construction pier on the steel column basis that road on site both sides was pour rapidly when needs, go the bridge floor butt joint again and just can form overpass fast. The technical scheme is as follows: the steel structure bridge pier of the overpass capable of being assembled and disassembled quickly comprises a bridge pier and an upright post, wherein the top surface of the bridge pier is a flat surface; the pier comprises a pier main body, a pier tail and a bridge floor joint, wherein the upright column is welded in the pier main body, and the central axis of the upright column is basically perpendicular to the top surface of the pier. According to the technical scheme disclosed by the patent, the requirement on the alignment precision is higher in the manufacturing and mounting processes of the pier steel column and the upright column, and more cranes and manpower are needed to cooperate to realize mounting when the upper structure is complex or the weight is larger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the pedestrian overpass pier is quick in construction, high in strength and good in stability.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the bridge pier of the pedestrian overpass is supported between a pedestrian overpass foundation and a ground foundation and comprises at least two tubular columns which are obliquely arranged in a V shape, the bottoms of the tubular columns are connected with the ground foundation, the tops of the tubular columns are connected with the pedestrian overpass foundation, and a cross beam is fixedly connected between the two tubular columns; a lower reinforcing structure is arranged at the joint of the pipe column and the ground foundation, and an upper reinforcing structure is arranged at the joint of the pipe column and the pedestrian bridge foundation; the tubular column is a hollow tubular column which is internally provided with an internal reinforcing structure and is filled with concrete.

Further, the method comprises the following steps: the tubular columns are steel tubular columns, the cross beams are steel cross beams, and the cross beams are connected with the two tubular columns in a welded mode.

Further, the method comprises the following steps: the bottom of the pipe column is connected with a ground foundation through a base plate, the base plate is laid on the ground foundation, and the bottom of the pipe column is welded on the base plate; the bed plate is fixedly connected with a ground foundation through a plurality of foundation bolts.

Further, the method comprises the following steps: the foundation bolts penetrate through the base plate and then are inserted into the ground foundation, and the plurality of foundation bolts are uniformly distributed in an annular mode on the periphery of the bottom of the pipe column.

Further, the method comprises the following steps: the shear keys are welded on the bottom surface of the base plate and inserted into the ground foundation; the shear keys are attached to the corresponding foundation bolts.

Further, the method comprises the following steps: the upper reinforcing structure is composed of a plurality of upper stiffening plates which are uniformly distributed along the periphery of the top of the pipe column, the upper stiffening plates are welded and fixed on the pipe column, and the top of each upper stiffening plate is abutted against the bottom surface of the pedestrian overpass foundation.

Further, the method comprises the following steps: the lower reinforcing structure is composed of a plurality of lower stiffening plates which are uniformly distributed along the periphery of the bottom of the pipe column, the lower stiffening plates are welded and fixed on the pipe column, and the bottom of each lower stiffening plate is welded and fixed on the top surface of the base plate.

Further, the method comprises the following steps: and the lower stiffening plates and the foundation bolts are alternately arranged.

Further, the method comprises the following steps: the internal reinforcing structure is a cross stiffening plate, and the cross section of the cross stiffening plate is in a cross shape; the edge parts of the cross stiffening plates are welded with the inner wall surface of the pipe column.

Further, the method comprises the following steps: the top and the bottom of the pipe column are respectively provided with a cross stiffening plate; the cross stiffening plate at the top of the pipe column abuts against the bottom surface of the pedestrian overpass foundation, and the cross stiffening plate at the bottom of the pipe column is welded and fixed on the top surface of the base plate.

Further, the method comprises the following steps: the reinforcing structure is a plurality of stiffening ribs which are arranged on the bottom surface of the bottom plate in a staggered mode.

The utility model has the advantages that: the utility model improves the overall stability and strength of the pedestrian bridge pier through the matching structure of the pipe column, the cross beam and the upper and lower reinforcing structures; the hollow pipe column filled with concrete is adopted as the pipe column of the main structure of the pier, so that the tensile property of steel and the compressive property of concrete are fully exerted, the number of members to be prepared is small, various defects caused by mixing materials in the traditional reinforced concrete structure can be effectively avoided, the construction of pipe column pouring concrete is quicker and the production cost is lower compared with the pouring work of the reinforced concrete structure, maintenance is not needed, manpower and material resources can be further saved, and the construction period is shortened.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 1;

labeled as: 100-pedestrian overpass foundation, 200-ground foundation, 300-pipe column, 400-crossbeam, 500-base plate, 600-foundation bolt, 700-shear key, 810-upper stiffening plate, 820-lower stiffening plate and 830-cross stiffening plate.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be further described with reference to the accompanying drawings and examples.

In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "upper", "lower", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the device or component indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the pedestrian overpass pier is arranged between the pedestrian overpass foundation 100 and the ground foundation 200 to support the pedestrian overpass, and the utility model discloses a pedestrian overpass pier comprises a tubular column 300, a beam 400 and an upper and lower reinforcing structure. The utility model discloses in order to avoid a series of defects that traditional reinforced concrete pier structure exists, adopt hollow structure's tubular column 300 as the main part of passenger footbridge pier, the inside of tubular column 300 sets up inside additional strengthening and packs the concrete, and tubular column 300 adopts the metal material, is the steel-pipe column better, the utility model discloses can full play steel tensile strength and the compressive property of concrete, can increase substantially the bulk strength of passenger footbridge pier. In addition, the utility model also increases the strength and stability of the connection between the pedestrian overpass pier, the pedestrian overpass foundation 100 and the ground foundation 200 by arranging the upper reinforcing structure and the lower reinforcing structure; meanwhile, the arrangement mode of the pipe columns 300 is improved, the pipe columns 300 are obliquely arranged, so that the two pipe columns 300 are supported between the pedestrian overpass foundation 100 and the ground foundation 200 in a V shape, the upper load can be well transferred to the ground foundation 200, a stable triangular support structure is formed between the two pipe columns 300 by utilizing the cross beam 400, and the overall strength and stability of the pedestrian overpass pier can be effectively improved; the beam 400 is made of steel materials, and the steel beam is connected with the two steel pipe columns in a welded mode. The utility model adopts the steel pipe column filled with concrete as the main body of the bridge pier of the pedestrian overpass, and the steel pipe column and other assembly structures can be produced as an integral structure in a workshop, and the assembly type construction mode is adopted, so that the construction period can be shortened and the construction difficulty can be reduced; the utility model can transfer a large amount of high-altitude operation and open-air operation in construction to the ground and a workshop for completion, has the advantages of construction speed block, little restriction by climatic conditions, little interference to traffic in construction, labor saving, improved construction quality and construction safety guarantee; the utility model discloses can the at utmost resources are saved and reduce the influence to the environment, realize energy-conservation, water conservation, economize on land, the green construction of festival material.

In the present invention, the pipe column 300 is connected and fixed to the ground foundation 200 through the bottom plate 500, as shown in fig. 1, fig. 2 and fig. 4, the bottom plate 500 is laid on the surface of the ground foundation 200, the bottom plate 500 is made of steel, the bottom of the pipe column 300 is welded and fixed to the bottom plate 500, and the bottom plate 500 is fixed to the ground foundation 200 through the anchor bolt 600; the bottom of the pipe string 300 is fixed to the ground foundation 200 by the floor base 500, and the contact area between the pipe string 300 and the ground foundation 200 can be increased, so that the load transmitted from the upper portion of the pipe string 300 can be dispersed by the floor base 500. As shown in fig. 4, a specific matching manner between the baseplate seat 500 and the anchor bolts 600 is that bolt holes corresponding to the anchor bolts 600 one by one are formed in the baseplate seat 500, and the anchor bolts 600 penetrate through the corresponding bolt holes in the baseplate seat 500 and then are inserted into the ground foundation 200; in order to uniformly apply the force, the anchor bolts 600 may be uniformly arranged in a ring shape around the bottom of the pipe string 300.

In order to resist the shearing force at the bottom of the pipe column 300 and prevent the base plate 500 at the bottom of the pipe column 300 from sliding with the ground foundation 200, the shear keys 700 matched with the foundation bolts 600 are additionally arranged in the utility model, the number of the shear keys 700 is consistent with that of the foundation bolts 600 and is in one-to-one correspondence with the foundation bolts 600, and the shear keys 700 are welded on the bottom surface of the base plate 500 and inserted into the ground foundation 200; the shear key 700 is attached to the corresponding anchor bolt 600, so that the anchor bolt 600 is limited in a one-to-one manner, and finally, the base plate 500 is limited as a whole.

The utility model discloses well additional strengthening who adopts includes upper portion additional strengthening, lower part additional strengthening and inside additional strengthening. The upper reinforcing structure is composed of a plurality of upper stiffening plates 810 uniformly distributed along the periphery of the top of the pipe column 300 as shown in fig. 1 and 2, the upper stiffening plates 810 are welded and fixed on the pipe column 300, the top of the upper stiffening plates 810 abuts against the bottom surface of the pedestrian overpass foundation 100, and if the pedestrian overpass foundation 100 is made of steel, the top of the upper stiffening plates 810 and the pedestrian overpass foundation 100 can be welded and fixed. As shown in fig. 1, 2 and 4, the lower reinforcing structure is composed of a plurality of lower stiffening plates 820 uniformly arranged along the periphery of the bottom of the pipe column 300, the lower stiffening plates 820 are welded and fixed on the pipe column 300, the bottoms of the lower stiffening plates 820 are welded and fixed on the top surface of the foundation plate 500, and similarly, the lower stiffening plates 820 and the foundation bolts 600 may be alternately arranged to ensure uniform stress. The internal reinforcing structure is fixed inside the pipe column 300 as shown in fig. 1 to 3, the internal reinforcing structure is fixed by adopting stiffening plates in a cross-shaped manner to form a cross-shaped stiffening plate 830 with a cross-shaped cross section, the cross-shaped stiffening plate 830, the upper stiffening plate 810 and the lower stiffening plate 820 are made of steel, and the edge parts of the cross-shaped stiffening plate 830 are welded with the inner wall surface of the pipe column 300.

Because the top and the bottom of the pipe column 300 are important connecting positions and are also the most important stress positions, the cross stiffening plates 830 are respectively arranged at the top and the bottom of the pipe column 300; the cross stiffening plate 830 at the top of the pipe column 300 abuts against the bottom surface of the pedestrian bridge foundation 100, and the cross stiffening plate 830 at the bottom of the pipe column 300 is welded and fixed on the top surface of the base plate 500.

Claims

1. Pedestrian overpass pier, the pier supports between pedestrian overpass basis (100) and ground basis (200), its characterized in that: the bridge pier comprises at least two tubular columns (300) which are obliquely arranged in a V shape, the bottoms of the tubular columns (300) are connected with a ground foundation (200), the tops of the tubular columns (300) are connected with a pedestrian overpass foundation (100), and a cross beam (400) is fixedly connected between the two tubular columns (300); a lower reinforcing structure is arranged at the joint of the pipe column (300) and the ground foundation (200), and an upper reinforcing structure is arranged at the joint of the pipe column (300) and the pedestrian overpass foundation (100); the pipe column (300) is a hollow pipe column which is internally provided with an internal reinforcing structure and is filled with concrete.

2. The pedestrian overpass pier of claim 1, wherein: the pipe columns (300) are steel pipe columns, the cross beam (400) is a steel cross beam, and the cross beam (400) is connected with the two pipe columns (300) in a welding mode.

3. The pedestrian overpass pier of claim 1 or 2, wherein: the bottom of the pipe column (300) is connected with a ground foundation (200) through a base plate (500), the base plate (500) is laid on the ground foundation (200), and the bottom of the pipe column (300) is welded on the base plate (500); the base plate (500) is fixedly connected with a ground foundation (200) through a plurality of foundation bolts (600).

4. The pedestrian overpass pier of claim 3, wherein: the foundation bolts (600) penetrate through the base plate (500) and then are inserted into the ground foundation (200), and the plurality of foundation bolts (600) are uniformly distributed on the periphery of the bottom of the pipe column (300) in an annular mode.

5. The pedestrian overpass pier of claim 4, wherein: the shear keys (700) are in one-to-one correspondence to the foundation bolts (600), and the shear keys (700) are welded to the bottom surface of the foundation plate (500) and inserted into the ground foundation (200); the shear key (700) is attached to the corresponding anchor bolt (600).

6. The pedestrian overpass pier of claim 3, wherein: the upper reinforcing structure is composed of a plurality of upper stiffening plates (810) uniformly distributed along the periphery of the top of the pipe column (300), the upper stiffening plates (810) are welded and fixed on the pipe column (300), and the top of each upper stiffening plate (810) abuts against the bottom surface of the pedestrian overpass foundation (100).

7. The pedestrian overpass pier of claim 3, wherein: the lower reinforcing structure is composed of a plurality of lower stiffening plates (820) uniformly distributed along the periphery of the bottom of the pipe column (300), the lower stiffening plates (820) are welded and fixed on the pipe column (300), and the bottoms of the lower stiffening plates (820) are welded and fixed on the top surface of the base plate (500).

8. The pedestrian overpass pier of claim 7, wherein: the lower stiffening plates (820) and the foundation bolts (600) are alternately arranged.

9. The pedestrian overpass pier of claim 1 or 2, wherein: the internal reinforcing structure is a cross stiffening plate (830), and the cross section of the cross stiffening plate (830) is in a cross shape; the edge part of the cross stiffening plate (830) is welded and connected with the inner wall surface of the pipe column (300).

10. The pedestrian overpass pier of claim 9, wherein: the top and the bottom of the pipe column (300) are respectively provided with a cross stiffening plate (830); the cross stiffening plate (830) at the top of the pipe column (300) is abutted against the bottom surface of the pedestrian overpass foundation (100), and the cross stiffening plate (830) at the bottom of the pipe column (300) is welded and fixed on the top surface of the base plate (500).