Construction method of high-speed rail canopy steel bar frame and high-speed rail canopy steel bar frame

Abstract

According to the construction method of the high-speed rail canopy reinforcing steel bar frame and the high-speed rail canopy reinforcing steel bar frame, the high-speed rail canopy reinforcing steel bar frame is decomposed into a plurality of parts which are bound and formed in advance and then hoisted to the construction position to be assembled, the construction time of workers at the high position can be effectively shortened, and the safety of the workers is better guaranteed; the turnover quantity of construction materials, especially steel bars, is greatly reduced; due to the fact that binding work of all the components can be carried out on the ground or other idle positions, binding work of the reinforcement cage can be carried out synchronously when the trolley is built to carry out other work, the site and time utilization efficiency can be improved, and the construction period is further shortened. On the other hand, compared with field binding and adjusting, the construction method provided by the invention has the advantages that the steel bar frame is modularly machined and assembled, so that all sections of parts of the steel bar frame of the high-speed rail canopy can be uniformly machined and assembled in a classified mode, the difference of all sections of the high-speed rail canopy can be better reduced, the construction error is improved, and the construction efficiency is improved. Therefore, the construction consistency and universality of the high-speed rail canopy are improved.

Description

Technical Field

[0001] The present application relates to a method for building a building, and particularly to a method for building a steel bar framework of a high-speed railway canopy and a steel bar framework of a high-speed railway canopy. Background Art

[0002] The fair-faced concrete canopy of a high-speed railway platform is usually formwork constructed and poured by using high falsework, and a full hall scaffolding support system is adopted. The erection of the support frame is complex, the technical requirements are difficult, and the workload is huge. Chinese Patent CN221372887U discloses an intelligent construction trolley for a platform canopy. The construction trolley is moved to the construction position through a movable chassis assembly. Through the arrangement of a plurality of groups of hydraulic lifting components, the formwork lifting platform can be driven up and down. Through the upward movement of the formwork lifting platform, the canopy formwork system can be driven to move upward, and thus the formwork closing and stripping operations can be completed. Compared with the traditional full hall scaffolding support system, the construction trolley greatly improves the construction efficiency. However, at present, the steel bar framework is still tied by workers on site, which requires workers to work at heights, and the steel bar materials need to be scattered and transported to the tying position, and there is still a problem of large turnover of construction materials. Summary of the Invention

[0003] The present application provides a method for building a steel bar framework of a high-speed railway canopy and a steel bar framework of a high-speed railway canopy. By modular processing and assembly of the steel bar framework, the time for workers to work at heights at the construction position is reduced, and the turnover of construction materials, especially steel bars, is greatly reduced.

[0004] Specifically, the present application provides a method for building a steel bar framework of a high-speed railway canopy. The steel bar framework of the high-speed railway canopy includes a plurality of steel bar structures, and the plurality of steel bar structures are connected by connecting pieces; the steel bar structures include a reserved foundation steel bar cage, a column steel bar cage, a cantilever beam steel bar cage, a frame beam steel bar cage and a secondary beam steel bar cage; the steel bar cage includes main bars defining its length and stirrups sleeved on the main bars; the building method includes the following steps:

[0005] S1: Tie the reserved foundation steel bar cage and build the foundation, and the main bars of the reserved foundation steel bar cage extend upward out of the foundation;

[0006] S2: Tie the column steel bar cage, the cantilever beam steel bar cage, the frame beam steel bar cage and the secondary beam steel bar cage;

[0007] S3: Clean the reserved foundation steel bar cage, and pre-sleeve a connecting device on the main bars of the reserved foundation steel bar cage;

[0008] S4: Install the column steel bar cage, insert one end of the main bar of the column steel bar cage into the connecting device, squeeze the connecting device to complete the connection and install stirrups at the connection;

[0009] S5: Install the steel cage of the cantilever beam such that the other ends of the main bars of the column steel cage are inserted into the steel cage of the cantilever beam;

[0010] S6: Install the steel cage of the frame beam and insert one end of the main bar of the steel cage of the frame beam into the steel cage of the cantilever beam;

[0011] S7: Install the steel cage of the secondary beam and insert one end of the main bar of the steel cage of the secondary beam into the steel cage of the cantilever beam;

[0012] S8: Bend the part of the main bar of the column steel cage that extends out of the steel cage of the cantilever beam;

[0013] S9: Install couplers on the main bars of the steel cage of the frame beam and the main bars of the steel cage of the secondary beam, and insert the main bars of the steel cage of the frame beam and the main bars of the steel cage of the secondary beam of another steel structure into the corresponding couplers respectively, and squeeze the couplers to complete the connection of the steel structures.

[0014] Further, the foundation in step S1 is formed by pouring concrete, the reserved part of the foundation steel bars is fixed in the foundation, and the remaining part is exposed outside the foundation; steps S1 and S2 can be carried out synchronously.

[0015] Further, both ends of the main bars of the column steel cage, both ends of the main bars of the frame beam steel cage, and both ends of the main bars of the secondary beam steel cage in S2 remain straight.

[0016] Further, the stirrups at the connection in step S4 are preset on the column steel cage and are located between the connection and the middle section of the column steel cage. After the main bars of the column steel cage are inserted into the coupler, the stirrups are moved to the connection and tightened.

[0017] Further, the main bars of the column steel cage and the main bars of the frame beam steel cage are both inserted into the middle part of the steel cage of the cantilever beam, and the length directions of the three are perpendicular to each other.

[0018] Further, the main bars of the secondary beam steel cage are inserted into the end of the steel cage of the cantilever beam; the length direction of the secondary beam steel cage is basically parallel to the length direction of the frame steel cage.

[0019] Further, the main body of the secondary beam steel cage and the main body of the frame beam steel cage are on the same side of the steel cage of the cantilever beam.

[0020] Further, the column steel cage, the cantilever beam steel cage, the frame beam steel cage, and the secondary beam steel cage are all hoisted by a crane.

[0021] Further, each of the steel structures includes at least two groups of reserved foundation steel bars, column steel cages, frame beam steel cages, and secondary beam steel cages.

[0022] The present application also provides a high-speed rail awning steel bar framework, which is constructed according to the above method.

[0023] The beneficial effects of the present application are as follows: By decomposing the high-speed rail awning steel bar framework into multiple components, pre-binding and forming them, and then hoisting them to the construction position for assembly, the construction time of workers at high altitudes can be effectively reduced, the safety of workers can be better guaranteed, and the turnover volume of construction materials, especially steel bars, can be greatly reduced; Since the binding work of each component can be carried out on the ground or other idle positions, the binding work of the steel bar cage can be carried out synchronously when the construction trolley is performing other operations, which is conducive to improving the utilization efficiency of the site and time and further shortening the construction period.

[0024] On the other hand, compared with on-site binding and adjustment, the construction method provided by the present application modularizes the processing and assembly of the steel bar framework, enabling the components of each section of the high-speed rail awning steel bar framework to be classified and uniformly processed and assembled, which is more conducive to narrowing the differences between each section of the high-speed rail awning, improving construction errors, and thus improving the consistency and universality of high-speed rail awning construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flowchart of the construction method of the steel bar framework in the present invention;

[0026] Figure 2 It is a schematic diagram of the steel bar structure;

[0027] Figure 3 Schematic diagram of the steel bar framework;

[0028] Reference numerals: 100, reserved foundation steel bar cage; 200, column steel bar cage; 300, cantilever beam steel bar cage; 400, frame beam steel bar cage; 500, secondary beam steel bar cage. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the art to which this invention pertains. The terms "first", "second" and similar words used in this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. "Plural" or "several" means two or more. Unless otherwise specified, words such as "front part", "rear part", "lower part" and / or "upper part" are for convenience of description only and are not limited to a position or a spatial orientation. Words such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms of "a", "the" and "said" used in the specification and appended claims of this application are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term " / and" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0031] Please refer to Figures 1 to 3 , this application provides a construction method of a high-speed rail awning steel bar framework and a high-speed rail awning steel bar framework constructed according to this method. The high-speed rail awning steel bar framework includes a plurality of steel bar structures, and the plurality of steel bar structures are connected by connecting pieces; the steel bar structures include a reserved foundation steel bar cage 100, a column steel bar cage 200, a cantilever beam steel bar cage 300, a frame beam steel bar cage 400 and a secondary beam steel bar cage 500; the steel bar cage includes main bars defining its length and stirrups sleeved on the main bars; the construction method includes the following steps:

[0032] S1: Bind the reserved foundation steel bar cage and construct the foundation, and the main bars of the reserved foundation steel bar cage extend upward out of the foundation;

[0033] S2: Bind the column steel bar cage, the cantilever beam steel bar cage, the frame beam steel bar cage and the secondary beam steel bar cage;

[0034] S3: Clean the reserved foundation steel bar cage, and pre-sleeve a connecting device on the main bars of the reserved foundation steel bar cage;

[0035] S4: Install the column steel bar cage, insert one end of the main bars of the column steel bar cage into the connecting device, squeeze the connecting device to complete the connection and install stirrups at the connection;

[0036] S5: Install the cantilever beam reinforcement cage so that the other end of the main reinforcement of the column reinforcement cage is inserted into the cantilever beam reinforcement cage;

[0037] S6: Install the frame beam reinforcement cage and insert one end of the main reinforcement of the frame beam reinforcement cage into the cantilever beam reinforcement cage;

[0038] S7: Install the secondary beam reinforcement cage and insert one end of the main reinforcement of the secondary beam reinforcement cage into the cantilever beam reinforcement cage;

[0039] S8: Bend the part of the main reinforcement of the column reinforcement cage that extends out of the cantilever beam reinforcement cage;

[0040] S9: Install couplers on the main reinforcements of the frame beam reinforcement cage and the secondary beam reinforcement cage, and insert the main reinforcements of the frame beam reinforcement cage and the secondary beam reinforcement cage of another steel bar structure into the corresponding couplers respectively, and squeeze the couplers to complete the connection of the steel bar structure.

[0041] On the above basis, the foundation in step S1 is made of concrete, and a part of the reserved foundation reinforcement cage 100 is fixed in the foundation, and the remaining part is exposed from the foundation and used to connect the column reinforcement cage 200; during actual construction, the binding work of the column reinforcement cage 200, the cantilever beam reinforcement cage 300, the frame beam reinforcement cage 400 and the secondary beam reinforcement cage 500 can be carried out during the binding of the reserved foundation reinforcement cage 100 or the pouring of the foundation; or the binding work of the column reinforcement cage 200 and the cantilever beam reinforcement cage 300 is carried out during the binding of the reserved foundation reinforcement cage 100 and the pouring of the foundation, and the binding operation of the remaining reinforcement cages is carried out during the hoisting of the column reinforcement cage 200 and the cantilever beam reinforcement cage 300, making full use of the construction operation interval to synchronize multiple operations and shorten the construction period.

[0042] On the above basis, to facilitate the assembly of the steel bar structure, both ends of the main reinforcements of the column reinforcement cage 200, the frame beam reinforcement cage 400 and the secondary beam reinforcement cage 500 in S2 are kept straight, ensuring that they can be inserted into the coupler or the cantilever beam reinforcement cage 200 during assembly. The coupler in this embodiment is a cold extrusion sleeve. After inserting the main reinforcement of the reinforcement cage into the sleeve, pressure is applied to it to make it deformed, so as to firmly connect the two sides of the reinforcement cage.

[0043] On the above basis, before the column reinforcement cage 200, the frame beam reinforcement cage 400 and the secondary beam reinforcement cage 500 are installed in place, the stirrups at both ends are not installed in place temporarily. Taking the column reinforcement cage 200 as an example, the stirrups at the connection in step S4 of this embodiment are preset on the column reinforcement cage 200 and are located between the connection and the middle section of the column reinforcement cage 200. After the main reinforcement of the column reinforcement cage 200 is inserted into the coupler, the stirrups are slid to the connection and tightened. In other embodiments, it is also possible to wait until the column reinforcement cage 200 is installed in place, and then use a hydraulic press to tie the steel bars at the connection of the column reinforcement cage 200 on site to complete the tightening.

[0044] On the basis described above, as Figure 2 shown, in this embodiment, the main reinforcement bars of the column reinforcement cage 200 and the main reinforcement bars of the frame beam reinforcement cage 400 are both inserted into the middle of the cantilever beam reinforcement cage 300, and the length directions of the three are perpendicular to each other. The main reinforcement bars of the secondary beam reinforcement cage 500 are inserted into the end of the cantilever beam reinforcement cage 300; the length direction of the secondary beam reinforcement cage 300 is basically parallel to the length direction of the frame reinforcement cage 400, and the main bodies of the secondary beam reinforcement cage and the frame beam reinforcement cage are located on the same side of the cantilever beam reinforcement cage.

[0045] On the basis described above, please refer to Figure 2 , the steel bar structure in this embodiment includes at least two groups of reserved foundation steel bars 100, column reinforcement cages 200, frame beam reinforcement cages 100 and secondary beam reinforcement cages 500. The column reinforcement cages 200, cantilever beam reinforcement cages 300, frame beam reinforcement cages 400 and secondary beam reinforcement cages 500 are all hoisted by a crane. The steel bar structure is decomposed into multiple parts for modular unified processing. During assembly, a crane can be used for centralized hoisting, which can also improve the use efficiency of the crane.

[0046] The above are only the preferred embodiments of the present application, and do not impose any formal restrictions on the present application. Although the present application has been disclosed above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the equivalent embodiments with equivalent changes within the scope of the technical solution of the present application without departing from the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A construction method for the steel bar framework of a high-speed railway awning, characterized in that: The high-speed rail awning steel bar framework includes multiple steel bar structures, and the multiple steel bar structures are connected by connecting pieces; the steel bar structures include reserved foundation steel bar cages, column steel bar cages, cantilever beam steel bar cages, frame beam steel bar cages and secondary beam steel bar cages; the steel bar cage includes main steel bars defining its length and stirrups sleeved on the main steel bars; the construction method includes the following steps: S1: Bind the reserved foundation steel bar cage and construct the foundation, and the main steel bars of the reserved foundation steel bar cage extend upward out of the foundation; S2: Bind the column steel bar cage, cantilever beam steel bar cage, frame beam steel bar cage and secondary beam steel bar cage; S3: Clean the reserved foundation steel bar cage, and pre-sleeve a connecting device on the main steel bars of the reserved foundation steel bar cage; S4: Install the column steel bar cage, insert one end of the main steel bar of the column steel bar cage into the connecting device, squeeze the connecting device to complete the connection and install stirrups at the connection; S5: Install the cantilever beam steel bar cage so that the other end of the main steel bar of the column steel bar cage is inserted into the cantilever beam steel bar cage; S6: Install the frame beam steel bar cage, and insert one end of the main steel bar of the frame beam steel bar cage into the cantilever beam steel bar cage; S7: Install the secondary beam steel bar cage, and insert one end of the main steel bar of the secondary beam steel bar cage into the cantilever beam steel bar cage; S8: Bend the part of the main steel bar of the column steel bar cage that extends out of the cantilever beam steel bar cage; S9: Sleeve connecting devices on the main steel bars of the frame beam steel bar cage and the main steel bars of the secondary beam steel bar cage, and insert the main steel bars of the frame beam steel bar cage and the main steel bars of the secondary beam steel bar cage of another steel bar structure into the corresponding connecting devices respectively, and squeeze the connecting devices to complete the connection of the steel bar structures.

2. The construction method of a high-speed rail awning steel bar framework according to claim 1, characterized in that: The foundation in step S1 is formed by pouring concrete, and a part of the reserved foundation steel bar cage is fixed in the foundation, and the remaining part is exposed out of the foundation; steps S1 and S2 can be carried out synchronously.

3. A construction method of a high-speed rail awning steel bar framework according to claim 1, characterized in that: Both ends of the main steel bars of the column steel bar cage, both ends of the main steel bars of the frame beam steel bar cage and both ends of the main steel bars of the secondary beam steel bar cage in S2 are kept straight.

4. The construction method of a high-speed railway awning steel bar framework according to claim 1, characterized in that: The stirrups at the connection in step S4 are preset on the column steel bar cage and are located between the connection and the middle section of the column steel bar cage. After the main steel bars of the column steel bar cage are inserted into the connecting device, the stirrups are moved to the connection and tightened.

5. The construction method of a high-speed rail awning steel bar framework according to claim 1, characterized in that: The main steel bars of the secondary beam steel bar cage are inserted into the end of the cantilever beam steel bar cage; the length direction of the secondary beam steel bar cage is basically parallel to the length direction of the frame steel bar cage.

6. The construction method of a high-speed rail awning steel bar framework according to claim 5, characterized in that: The main body of the secondary beam steel bar cage and the main body of the frame beam steel bar cage are on the same side of the cantilever beam steel bar cage.

7. A construction method of a high-speed rail awning steel bar framework according to claim 1, characterized in that: The column steel bar cage, cantilever beam steel bar cage, frame beam steel bar cage and secondary beam steel bar cage are all hoisted by a crane.

8. A construction method of a high-speed rail awning steel bar framework according to claims 1 to 7, characterized in that: Each steel bar structure includes at least two groups of reserved foundation steel bars, column steel bar cages, frame beam steel bar cages and secondary beam steel bar cages.

9. A high-speed rail awning steel bar framework, characterized in that: Constructed according to the construction method described in claims 1 to 8.

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