Assembly type channel beam structure passing through pipe bridge

Abstract

The utility model discloses a pipe-passing bridge assembly type channel beam structure which comprises edge beams, a bottom plate and a local top plate. The boundary beam comprises a first partition part and a second partition part, the first partition part and the second partition part are integrally formed in a pouring mode, the two sides of the bottom plate are fixedly connected to one side of the first partition part, the other side of the first partition part is fixedly connected with the second partition part, a pipeline arrangement opening is formed in the upper end of the boundary beam, and a pipeline is arranged in the pipeline arrangement opening. The local top plate is arranged at the upper end of the edge beam, the cross section of the first partition part is in an I shape, the cross section of the second partition part is in an L shape, the cross section of the edge beam is in a U shape, a base is arranged at the lower end of the bottom plate and used for fixing the edge beam and the bottom plate to a bridge abutment, the bottom plate is formed through later pouring, and the edge beam is a prefabricated plate. The technical problems that in the technical field of bridge construction, a pipeline bridge is single in function and low in structural section efficiency, and standardized construction is not adopted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an assembled trough beam structure of a pipe bridge. Background Art

[0002] Municipal engineering pipelines are buried underground along the road. When they need to cross the river, they are either underground or across the bridge. Underground crossing can be done by open cut or underground tunnel. Open cut is controlled by factors such as the depth of the riverbed and geological conditions, and is not universally applicable. Underground tunnels are expensive and not suitable for general-scale projects. Pipelines across the river are mostly crossed by bridges. Pipelines with small scale and high safety can be arranged on traffic bridges, and pipelines can be laid across the river using traffic bridges. Sewage pipes, gas pipes with a pressure greater than 0.4KPa and other flammable, toxic or corrosive liquid and gas pipes, and distribution cables with a voltage ≥10kV shall not be laid on traffic bridges, and power cables and gas pipelines shall not be arranged on the same side. For pipelines with large scale and safety risks, special pipeline bridges must be set up for pipelines to cross the river.

[0003] At present, traditional pipeline bridges have the following problems: (1) Single function and lack of comprehensiveness. Most common pipeline bridges are only used for one or a few types of pipelines and cannot be used for multiple pipelines at the same time; (2) The structural section is inefficient and lacks specificity. The structural section of the pipeline bridge is basically similar to that of the traffic bridge. The pipeline is supported on the bridge deck or support point of the traffic bridge. The beam, arch, and cable-supported structure of the traffic bridge section is adopted, which is inconvenient to build, install, and repair. It does not fully combine the pipeline function and maintenance requirements; (3) Conventional pipeline bridges are not standardized, inefficient, and have high construction costs. Due to the lack of a standard system and lack of universality, each conventional pipeline bridge is designed and constructed separately, with high construction costs and long construction periods. In particular, the conventional concrete pipeline bridge support method requires foundation treatment, high costs, and a long construction period. The quality of on-site pouring construction is difficult to guarantee, and there are construction safety risks such as support collapse. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, provide an assembled trough beam structure for a pipe bridge, and solve the technical problems in the field of bridge construction technology that pipe bridges have single functions, low structural section efficiency, and are not built in a standardized manner.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a pipe bridge assembled trough beam structure, including:

[0006] Side beam, bottom plate and partial top plate; the side beam comprises a first partition part and a second partition part; the first partition part and the second partition part are cast in one piece; both sides of the bottom plate are fixedly connected to one side of the first partition part; the other side of the first partition part is fixedly connected to the second partition part; the upper end of the side beam is provided with a pipeline arrangement port; the partial top plate is provided at the upper end of the side beam;

[0007] The cross section of the first partition part is I-shaped; the cross section of the second partition part is L-shaped; the cross section of the side beam is U-shaped; a base is provided at the lower end of the bottom plate; the base is used to fix the side beam and the bottom plate to the bridge pier; the bottom plate is cast later; the side beam is a prefabricated plate.

[0008] Compared with the prior art, the beneficial effects of the utility model include:

[0009] 1. High utilization rate and resource saving: The structural section of the assembled trough beam structure of the pipe bridge provided by the utility model can allow multiple pipelines to cross the river on the same bridge at the same section, which is convenient for the centralized layout of pipelines. Special pipelines can be isolated by compartments through structural vertical plates. It has the function of crossing the river on the same bridge for multiple pipelines such as gas, high-voltage cables, sewage pipes, pressure pipelines, and large-diameter drainage pipes, solving the problem of multiple pipelines crossing the river on the same bridge, improving the utilization efficiency of the pipe bridge, and saving resources.

[0010] 2. Improve the use of the structure: The structural section of the assembled trough beam structure of the pipe bridge provided by the utility model is a section specially designed for pipeline bridges. It adopts a specific trough section with a horizontal bottom plate and an open top plate. It has a higher utilization efficiency than the pipeline bridge structure with a conventional traffic bridge section, and is more convenient for pipeline installation and inspection and maintenance.

[0011] 3. High work efficiency: The assembled trough beam structure of the pipe bridge provided by the utility model creates a pipe bridge span structure and construction method that can be standardized and assembled. The side beams are prefabricated in horizontal blocks and installed by hoisting, avoiding the adverse effects of water support construction and facilitating standardized construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the assembled trough beam structure of the pipe bridge provided by the utility model;

[0013] Figure 2 The utility model discloses a schematic diagram of the transverse distribution structure of prefabricated components in the assembled trough beam structure of the pipe bridge. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] See also Figure 1 , Figure 2 This embodiment provides a prefabricated trough beam structure of a pipe bridge, including: a side beam 1, a bottom plate 2, a partial top plate 3 and a base 4.

[0018] Furthermore, the side beam 1 includes a first partition portion 11 and a second partition portion 12, the first partition portion 11 and the second partition portion 12 are cast as one piece, both sides of the bottom plate 2 are fixedly connected to one side of the first partition portion 11, and the other side of the first partition portion 11 is fixedly connected to the second partition portion 12, a pipeline layout port 1a is provided at the upper end of the side beam 1, and the local top plate 3 is provided at the upper end of the side beam 1.

[0019] Specifically, the local top plate 3 is arranged in an array at intervals of 2 meters along the length direction of the side beam 1. At the same time, longitudinal and transverse ordinary steel bars are arranged in the local top plate 3. The local top plate 3 is combined with the side beam 1 to improve the stability of the side beam 1.

[0020] Specifically, the upper end of the bottom plate 2 is in an open state, which is convenient for pipeline construction and maintenance, and can also be used as a pipeline inspection channel.

[0021] Furthermore, the cross section of the first partition portion 11 is I-shaped, the cross section of the second partition portion 12 is L-shaped; and the cross section of the side beam 1 is U-shaped.

[0022] Specifically, the first partition part 11 and the second partition part 12 of the side beam 1 have strong integrity and adopt a prestressed concrete structure with strong structural crack resistance. At the same time, prestressed steel strands and ordinary steel bars are arranged in the side beam 1, and ordinary steel bars are laid in the bottom plate 2, so as to give full play to the tensile properties of steel and the compressive properties of concrete and improve the utilization efficiency of materials.

[0023] Specifically, the side beam 1 is prefabricated in a factory and installed by hoisting using a traffic bridge or a construction channel. The assembled structure has a fast construction speed, reliable quality, high work efficiency, and good economy because no support is required.

[0024] Furthermore, a base 4 is provided at the lower end of the bottom plate 2, and the base 4 is used to fix the side beam 1 and the bottom plate 2 to the bridge pier. The bottom plate 2 is cast later, and the side beam 1 is a prefabricated plate.

[0025] Specifically, the base plate 2 is a horizontal component that is convenient for installation and pipeline maintenance. The base plate 2 is supported on the side beams 1 on both sides, and is mainly subjected to lateral force, and transfers itself and the pipeline load laterally to the side beams 1 on both sides. The lateral span of the base plate 2 is not large, and an ordinary reinforced concrete structure is adopted. Ordinary longitudinal and transverse steel bars are arranged, and the transverse steel bars are tied with the reserved transverse steel bar joints of the side beams, and the concrete is poured on site to connect them.

[0026] Furthermore, the side beam 1 and the bottom plate 2 form an electric pipe accommodating compartment 2a, a gas pipe accommodating compartment 2b and a water pipe accommodating compartment 2c, and the electric pipe accommodating compartment 2a and the gas pipe accommodating compartment 2b are distributed on both sides of the water pipe accommodating compartment 2c, the gas pipe accommodating compartment 2b and the electric pipe accommodating compartment 2a are formed by the first partition portion 11 and the second partition portion 12, and the water pipe accommodating compartment 2c is formed by the first partition portion 11 and the bottom plate 2.

[0027] Specifically, the power pipe accommodating compartment 2a, the gas pipe accommodating compartment 2b and the water pipe accommodating compartment 2c separate the pipelines to ensure the safety of the pipelines.

[0028] Furthermore, a gas pipe base 21 is provided at the bottom end of the gas pipe accommodating compartment 2b, an electric pipe base 22 is provided on the side wall of the electric pipe accommodating compartment 2a, and a sewage pipe base 23, a regenerated water pipe base 24 and a water supply pipe base 25 are provided at the bottom end of the water pipe accommodating compartment 2c.

[0029] Preferably, the sewage pipe base 23 is of DN1200 type, the recycled water pipe base 24 and the water supply pipe base 25 are of DN800 type, the gas pipe base 21 is of DN500 type, and the power pipe base 22 is suitable for 110KV.

[0030] Furthermore, the center distance between the sewage pipe base 23 and the regenerated water pipe base 24 is 1.8 m, and the center distance between the regenerated water pipe base 24 and the water supply pipe base 25 is 1.6 m.

[0031] Preferably, the distance between the center of the sewage pipe base 23 and the nearest first partition portion 11 is 1.2 m, and the distance between the center of the water pipe base 25 and the nearest first partition portion 11 is 1.0 m.

[0032] Preferably, the bottom ends of the bottom plate 2 and the side beams 1 are provided with reserved holes 26 along the thickness direction, and the reserved holes 26 are arranged in an array along the length direction of the bottom plate 2 and the side beams 1, and the diameter of the reserved holes is 10 cm.

[0033] Specifically, the reserved holes 26 serve as ventilation channels and drainage channels for water accumulated in the beam.

[0034] Preferably, the assembled trough beam structure of the pipe bridge adopts high-performance marine engineering concrete and silane impregnation anti-corrosion measures and should be usable in coastal environments.

[0035] Preferably, the assembled trough beam structure of the pipe bridge is determined according to the pipeline layout, taking into account factors such as bridge span load-bearing, construction and installation, inspection and maintenance, and standardized construction, and is a special structure for pipeline crossing. The structure is simply supported, the force is clear, and standardized components are used. They are combined horizontally according to needs, and a variety of combined trough beams can be evolved after the combination to meet various pipeline layouts. It is suitable for standard spans such as 10m, 15m, 20m, 25m, and 30m. The use of standardized components facilitates mass production and can be promoted on a large scale.

[0036] In the first embodiment, the structural dimensions of the components in the assembled trough beam structure of the pipe bridge are as follows: the side beam 1 is 2.1m high, the side beams 1 on both sides are 2.7m wide, the bottom plate 2 is 4.6m wide, the bottom plate 2 is 30cm thick, the second partition portion 12 is 35cm thick, and the first partition portion 11 is 35-45m thick.

[0037] The pipe bridge assembled trough beam structure also includes a construction method, and the specific steps are as follows:

[0038] S1, installing the base 4 on the pier by bolting;

[0039] S2, installing the side beam 1 of the prefabricated component on the upper end of the base 4 by hoisting;

[0040] S3, using the two side beams 1 as supports to erect a bottom plate bracket, tie the bottom plate steel bars, and pour the bottom plate concrete. After the curing is completed, the bottom plate 2 and the side beams 1 are an integrated structure;

[0041] S4, installing the gas pipeline base 21, the power pipe base 22, the sewage pipe base 23, the recycled water pipe base 24 and the water supply pipe base 25;

[0042] S5. Lay corresponding pipelines on the gas pipeline base 21, the power pipe base 22, the sewage pipe base 23, the recycled water pipe base 24 and the water supply pipe base 25, and the installation is completed.

[0043] Working principle: The utility model provides an assembled trough beam structure for a pipe-passing bridge, which includes a side beam 1, a bottom plate 2 and a partial top plate 3. The side beam 1 includes a first partition portion 11 and a second partition portion 12, the first partition portion 11 and the second partition portion 12 are cast in one piece, both sides of the bottom plate 2 are fixedly connected to one side of the first partition portion 11, and the other side of the first partition portion 11 is fixedly connected to the second partition portion 12, the upper end of the side beam 2 is provided with a pipeline layout port 2a, the partial top plate 3 is provided at the upper end of the side beam 1, the cross section of the first partition portion 11 is I-shaped, the cross section of the second partition portion 12 is L-shaped, the cross section of the side beam 1 is U-shaped, and the lower end of the bottom plate 2 is provided with a base 4, which is used to fix the side beam 1 and the bottom plate 2 to the bridge pier, the bottom plate 2 is cast later, and the side beam 1 is a prefabricated plate.

[0044] Specifically, S1, the base 4 is installed on the pier by bolting; S2, the side beam 1 of the prefabricated component is installed on the upper end of the base 4 by hoisting; S3, the bottom plate bracket is erected with the two side beams 1 as support, the bottom plate steel bars are tied, and the bottom plate concrete is poured. After the curing is completed, the bottom plate 2 and the side beam 1 are an integrated structure; S4, the gas pipeline base 21, the power pipe base 22, the sewage pipe base 23, the recycled water pipe base 24 and the water supply pipe base 25 are installed;

[0045] S5. Lay corresponding pipelines on the gas pipeline base 21, the power pipe base 22, the sewage pipe base 23, the recycled water pipe base 24 and the water supply pipe base 25, and the installation is completed.

[0046] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A pipe bridge assembled trough beam structure, characterized in that: include: Side beams, bottom plates and partial top plates; the side beams include a first partition portion and a second partition portion; the first partition portion and the second partition portion are cast as one piece; both sides of the bottom plate are fixedly connected to one side of the first partition portion; the other side of the first partition portion is fixedly connected to the second partition portion; a pipeline layout port is provided at the upper end of the side beam; the partial top plate is provided at the upper end of the side beam.

2. The assembled trough beam structure of the pipe bridge according to claim 1 is characterized in that: The cross section of the first partition portion is I-shaped; the cross section of the second partition portion is L-shaped; and the cross section of the side beam is U-shaped.

3. The assembled trough beam structure of the pipe bridge according to claim 2 is characterized in that: A base is provided at the lower end of the bottom plate; the base is used to fix the side beam and the bottom plate to the bridge pier; the bottom plate is cast in a later stage; the side beam is a prefabricated plate.

4. The assembled trough beam structure of the pipe bridge according to claim 3 is characterized in that: The side beams and the bottom plate form a power pipe accommodation compartment, a gas pipe accommodation compartment and a water pipe accommodation compartment; The electric pipe accommodating compartment and the gas pipe accommodating compartment are distributed on both sides of the water pipe accommodating compartment; the gas pipe accommodating compartment and the electric pipe accommodating compartment are formed by the first partition part and the second partition part; the water pipe accommodating compartment is formed by the first partition part and the bottom plate.

5. The assembled trough beam structure of the pipe bridge according to claim 4 is characterized in that: A gas pipe base is arranged at the bottom end of the gas pipe accommodation compartment; an electric pipe base is arranged on the side wall of the electric pipe accommodation compartment; a sewage pipe base, a recycled water pipe base and a water supply pipe base are arranged at the bottom end of the water pipe accommodation compartment.

6. The assembled trough beam structure of the pipe bridge according to claim 5, characterized in that: The bottom ends of the bottom plate and the side beams are provided with reserved holes along the thickness direction; the reserved holes are arranged in an array along the length direction of the bottom plate and the side beams; and the diameter of the reserved holes is 10 cm.

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