CN211596346U

CN211596346U - Bridge floor framing fan-shaped opening type beam bridge

Info

Publication number: CN211596346U
Application number: CN201921996084.3U
Authority: CN
Inventors: 宋杰
Original assignee: Guangzhou Lanrui Road And Bridge Design Co ltd
Current assignee: Guangzhou Lanrui Road And Bridge Design Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-09-29
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a but bridge floor framing fan-shaped open-type beam bridge, five install the framing steel girder A, B, C, D and E on the riverbank unilateral rotation box room in proper order and open, open the angle and be 70 degrees, 55 degrees, 40 degrees, 25 degrees and 10 degrees respectively, cantilever steel girder structure rotation in-process balanced system adopts hydraulic system to realize opening and closing of bridge safely and surely. The utility model provides a bridge scheme with good landscape effect, definite structural stress, high rotation efficiency, advanced technology, combination of dynamic and static conditions and good social benefit in the field of traffic infrastructure; the opening process of the bridge deck is as if a traditional fan is gradually opened, the vision is shocked, the effect of dynamic sculpture silhouettes is formed, and the method is very novel; the bridge has outstanding lines, attractive appearance and strong space permeability, supplements the modern city design concept, is integrated into a whole, can become the landmark landscape engineering of the city, and improves the city identification degree and the charm.

Description

Bridge floor framing fan-shaped opening type beam bridge

Technical Field

The utility model belongs to the technical field of the technique and specifically relates to a but bridge floor framing fan-shaped open-type beam bridge belongs to bridge engineering.

Background

Along with the continuous and rapid development of Chinese economy, the urbanization and industrialization process is continuously accelerated, the traffic infrastructure industry is rapidly developed, the requirements of people on urban landscape and environmental protection are higher and higher, and a large number of artistic-modeling bridges are gradually built. Especially, in the places where people gather such as urban commercial streets, landscape bridges are safer and more reliable, the technology is advanced, and the landscape is also beautiful and has different standards to form a business card of urban images.

In view of this, a new solution with good landscape effect, definite structural stress, high efficiency of rotation, advanced technology, dynamic and static combination and good social benefit is needed to be proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art, and providing a bridge deck framing fan-shaped open type beam bridge.

The purpose of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a but bridge floor framing fan-shaped open-type beam bridge which characterized in that: the five framing steel main beams A, B, C, D and E installed on the single-side rotary box room of the river bank are sequentially opened in sequence, the opening angles are respectively 70 degrees, 55 degrees, 40 degrees, 25 degrees and 10 degrees, and a balance system adopts a hydraulic system in the rotation process of the cantilever steel main beam structure so as to safely and reliably realize the opening and closing of the bridge.

Preferably, the framing steel girder is in a single-box single-chamber steel box girder type, the steel girder is rotated by a rotating spherical hinge arranged on a bottom plate and a rotating jack, the rotating spherical hinge is arranged at the top of a rotating base, the top of the rotating jack is connected with the bottom plate of the steel girder, and the bottom of the rotating jack is embedded in the rotating box chamber base.

As a preferable scheme, in the rotating process of the framing steel main beams, the rotating jacks jack up or fall back in sequence according to the sequence of the framing steel main beams A, B, C, D and E, and the angular speed of the steel main beams is not more than 10 degrees per minute in the jacking or falling process.

As a preferred scheme, the rotating box chamber provides a rotating space of the non-crossing end beam part of the framing steel main beam, an operation space of the rotating jack for jacking and falling, and an installation space of the rotating base and the rotating spherical hinge, and a water-proof and drainage system, an illumination system, a dehumidification system and a fire-fighting facility for operation and maintenance are arranged in the box chamber.

As an optimal scheme, framing steel girder A and E bridge floor installation railing are in order to protect pedestrian's safety, the railing is reset by double slant stainless steel stick and constitutes, forms a firm and highly transparent structure, and continuous low energy consumption LED down lamp is installed to handrail department, provides the illumination function for the pedestrian.

The utility model discloses for prior art have following beneficial effect:

1. the landscape effect is excellent, and the urban landmark building

The bridge deck framing fan-shaped opening type beam bridge is characterized in that five framing steel main beams A, B, C, D and E which are installed on a rotating box chamber on one side of a river bank are sequentially opened, the opening process of the bridge deck is as if a fan is gradually opened in the prior art, the effect of dynamic sculpture silhouettes is achieved, and the bridge deck framing fan-shaped opening type beam bridge is quite novel. The bridge has outstanding lines, attractive appearance and strong space permeability, supplements the modern city design concept, is integrated into a whole, can become the landmark landscape engineering of the city, and improves the city identification degree and the charm.

2. Clear structure stress, high rotation efficiency and advanced technology

The balance system adopts a hydraulic system in the rotation process of the framing steel girder structure, the rotating jacks jack up or fall back in sequence according to the framing steel girders A, B, C, D and E in the rotation process so as to safely and stably realize the opening and closing of the bridge, the structure is stressed efficiently, the rigid girder can be opened and closed efficiently, and the advancement of the bridge technology is embodied.

3. Dynamic and static combination and good social benefit

The bridge is arranged in a commercial street where pedestrians gather, can realize dynamic and static combination according to pedestrian density, and brings additional benefits to the society. When the pedestrians are dense, the bridge is closed to dredge the pedestrians, and the landscape is good; when the pedestrians are sparser, the bridge can be opened in a stepping mode to form a fan-shaped dynamic sculpture model which is just like an urban landmark building when standing in a commercial street.

Drawings

FIG. 1 is a schematic view of the opening and closing of a main beam A of the framing steel of the present invention;

FIG. 2 is a vertical view of the open bridge type of the steel main beam A-E of the present invention;

FIG. 3 is a sectional view of the bridge type of the framing steel main beam A-E of the present invention;

FIG. 4 is a cross section of the steel main beam with the width divided at the root of the cantilever of the utility model;

FIG. 5 is a cross section of the cantilever end framing steel main beam of the present invention;

in the figure: 1. a framing steel main beam A; 2. a framing steel main beam B; 3. a framing steel girder C; 4. a framing steel girder D; 5. a framing steel main beam E; 6. a steel main beam rail; 7. rotating the cabinet; 8. rotating the base; 9. rotating the spherical hinge; 10. rotating the jack; 11. and (5) bridge pier foundations.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description will be made in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example (b):

referring to fig. 1 to 5, the utility model provides a bridge deck framing fan-shaped open-type beam bridge, five framing steel girders a (1), B (2), C (3), D (4) and E (5) installed on a bank single-side rotating box chamber 7 are sequentially opened, and the opening angles are 70 degrees, 55 degrees, 40 degrees, 25 degrees and 10 degrees respectively; a balance system adopts a hydraulic system in the rotation process of the cantilever steel main beam structure (1-5) so as to safely and reliably realize the opening and closing of the bridge.

In this embodiment, a bridge floor framing fan-shaped open-type girder bridge, main bridge span 20m, framing steel girder (1-5) length 30.0m, cantilever root height 1.2m, cantilever tip height 0.5m, the total width of bridge floor 3.0m, framing steel girder (1-5) single breadth 0.6m, roof and bottom plate adopt thickness 28mm, the web adopts the Q370qd steel of thickness 24 mm.

The framing steel main beams (1-5) adopt a single-box single-chamber steel box beam type, 1cm separation joints are reserved among the steel main beams A (1), B (2), C (3), D (4) and E (5), and the steel main beams (1-5) realize rotation operation through rotating spherical hinges 9 arranged on the bottom plate and rotating jacks 10. The rotary spherical hinge 9 is arranged at the top of the rotary base 8, the top of the rotary jack 10 is connected with the bottom plates of the steel main beams (1-5), and the bottom of the rotary jack is embedded in the base of the rotary box chamber 7. The rotary spherical hinge 9 is a core component of a rotary system and consists of a rotary shaft, a steel sleeve and a stiffening steel plate, and is professionally customized by a manufacturer. The model of the rotary jack 10 is determined according to the self weight, the rotation difficulty and the rotary jacking factors of the framing steel main beam (1-5), and the manufacturer is advised to customize professionally.

In the rotating process of the framing steel main beams (1-5), the rotating jacks 10 sequentially jack up or fall back according to the sequence of the framing steel main beams A (1), B (2), C (3), D (4) and E (5), and the angular speed of the framing steel main beams (1-5) is not more than 10 degrees per minute in the jacking or falling process.

The rotary box chamber 7 provides a rotary space of the non-crossing end beam part of the framing steel main beams (1-5), an operation space for the rotary jack 10 to jack up and fall back, and an installation space for the rotary base 8 and the rotary spherical hinge 9. The rotating box chamber 7 and the rotating base 8 are both of cast-in-place reinforced concrete structures. The interior of the rotary box chamber 7 is provided with a water-proof and drainage system, a lighting system, a dehumidification system and a fire-fighting facility for operation and maintenance.

And railings 6 are arranged on bridge surfaces of the framing steel main beams A (1) and E (5) to protect the safety of pedestrians. The railing 6 is formed by resetting double rows of oblique stainless steel bars, is 1.2m high, adopts Q235c steel, and forms a firm and highly transparent structure. Continuous low-energy-consumption LED down lamps are installed at the handrails to provide a lighting function for pedestrians.

The embodiment of the utility model provides a but specific construction method of bridge floor framing fan-shaped open-type beam bridge can summarize as following basic flow: foundation construction → installation of a rotary spherical hinge and a rotary jack → construction of a framing steel girder → bridge deck construction → test of opening and closing of the bridge deck → bridge formation.

Construction of foundations

Firstly, cleaning a field and preparing materials. Secondly, under the premise of reliable protection measures, the rotary box chamber 7, the rotary base 8 and the bridge pier 11 are constructed, and the rotary spherical hinge 9 and the rotary jack 10 embedded parts are installed in advance.

Rotary spherical hinge and rotary jack mounting

The rotary spherical hinge 9 is arranged at the top of the rotary base, and the rotary spherical hinge 9 is a core component of a rotary system and consists of a rotary shaft, a steel sleeve and a stiffening steel plate. The type of the rotary jack 10 is determined according to the self weight, the rotation difficulty and the rotary jacking factors of the framing steel main beams (1-5).

Framing steel girder construction

The sections of the framing steel main beams (1-5) are transported, hoisted, erected and welded through full framing and floating transportation measures. 1cm separation seams are reserved among the framing steel main beams A (1), B (2), C (3), D (4) and E (5).

Bridge deck construction

And constructing a bridge deck pavement and two side railings 6, wherein the two side railings 6 are respectively arranged on the steel main beam A (1) and the steel main beam E (5).

Bridge deck opening and closing test

Bridge formation

After the bridge deck opening and closing test is completed smoothly, the full-bridge construction is finished smoothly after the steel structure coating construction and the decoration installation are completed.

Above, only be the preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any technical personnel who is familiar with this technical field are in the utility model discloses a within range, according to the technical scheme of the utility model patent and utility model patent conception are equant substitution or change, all belong to the scope of protection of the utility model patent.

Claims

1. The utility model provides a but bridge floor framing fan-shaped open-type beam bridge which characterized in that: the five framing steel main beams A, B, C, D and E installed on the single-side rotary box room of the river bank are sequentially opened in sequence, the opening angles are respectively 70 degrees, 55 degrees, 40 degrees, 25 degrees and 10 degrees, and a balance system adopts a hydraulic system in the rotation process of the cantilever steel main beam structure so as to safely and reliably realize the opening and closing of the bridge.

2. A bridge deck framing sector openable girder bridge according to claim 1, wherein: the framing steel main beam adopts a single-box single-chamber steel box beam type, the steel main beam realizes rotation operation through a rotating spherical hinge arranged on a bottom plate and a rotating jack, the rotating spherical hinge is arranged at the top of a rotating base, the top of the rotating jack is connected with the bottom plate of the steel main beam, and the bottom of the rotating jack is embedded into the rotating box chamber base.

3. A bridge deck framing sector openable girder bridge according to claim 1, wherein: and in the rotating process of the framing steel main beams, the rotating jacks jack up or fall back according to the sequence of the framing steel main beams A, B, C, D and E, and the angular speed of the steel main beams is not more than 10 degrees per minute in the jacking or falling process.

4. A bridge deck framing sector openable girder bridge according to claim 1, wherein: the rotating box chamber provides a rotating space of the non-crossing end beam part of the framing steel main beam, an operation space of jacking and falling of the rotating jack, and an installation space of the rotating base and the rotating spherical hinge, and a water-proof and drainage system, an illumination system, a dehumidification system and a fire-fighting facility for operation and maintenance are arranged in the box chamber.

5. A bridge deck framing sector openable girder bridge according to claim 1, wherein: the framing steel girder A is installed the railing with E bridge floor in order to protect pedestrian's safety, the railing comprises the resetting of double slant stainless steel stick, forms a firm and highly transparent structure, and continuous low energy consumption LED down lamp is installed to handrail department, provides the illumination function for the pedestrian.