Synchronous construction method for high-speed rail station building elevated layer and comprehensive pipe gallery

Abstract

The invention provides a high-speed rail station building elevated layer and comprehensive pipe gallery synchronous construction method which comprises the steps that S1, a formwork supporting system of a non-main-beam area below an elevated layer and a comprehensive pipe gallery is erected, and concrete pouring is conducted on a floor of the comprehensive pipe gallery of the non-main-beam area; s2, a formwork supporting system of an elevated layer main beam, a non-utility tunnel area secondary beam and a plate area is erected, and concrete pouring is conducted on the main beam, the non-utility tunnel area secondary beam and a plate; s3, concrete pouring is conducted on a post-cast strip floor of the comprehensive pipe gallery under the main beam; and S4, a formwork supporting system of the comprehensive pipe gallery davit, the shear wall and the elevated layered beam and plate area is erected, and concrete pouring is conducted on the comprehensive pipe gallery davit, the shear wall and the elevated layered beam and plate of the comprehensive pipe gallery area. According to the construction method, positive construction is conducted through the elevated layer and the comprehensive pipe gallery concrete, construction of the elevated layer and the comprehensive pipe gallery concrete structure is conducted synchronously, and the requirement for the construction period is met while installation performance is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a method for synchronously constructing an elevated layer and an integrated pipeline corridor of a high-speed railway station. Background Art

[0002] At present, the conventional construction of elevated floors and integrated pipe corridors in high-speed railway stations adopts a reverse construction process. One reverse construction method is: first construct the beams and slabs of the elevated floor. After the concrete of the elevated floor is poured and meets the demolding strength, the formwork and formwork support frame are removed. Then, the formwork support frame is erected to construct the beams, slabs, hanging columns, and side walls of the integrated pipe corridor under the elevated floor. However, this process requires the concrete strength of the elevated floor to meet the demolding conditions before the formwork is removed and the secondary formwork support frame is erected. The construction period is long and cannot meet the on-site construction period requirements. Another reverse construction method is: above the main track, a steel gantry is used as the formwork support system. Other formwork support methods are the same as method one. The construction of the formwork support system above the main track and the laying of the track below are carried out simultaneously. There is cross-construction and a high safety risk. Secondly, the large-span gantry uses large steel specifications, which increases construction costs.

[0003] In view of the problem that the reverse construction technology used in the existing technology for elevated floors and integrated pipeline corridors cannot guarantee the construction safety and construction period requirements, technical personnel in this field have been looking for solutions. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for the simultaneous construction of the elevated layer and the integrated pipeline corridor of a high-speed railway station building, so as to solve the problem that the elevated layer and the integrated pipeline corridor adopt the reverse construction process in the existing technology, which cannot guarantee the construction safety and construction period.

[0005] In order to solve the above technical problems, the present invention provides a method for synchronous construction of an elevated layer and an integrated pipe gallery of a high-speed railway station building, which comprises the following steps:

[0006] S1: Set up the formwork support system for the elevated layer and the non-main beam area under the integrated pipe gallery, and pour the concrete for the integrated pipe gallery floor slab in the non-main beam area;

[0007] S2: Set up the formwork support system for the elevated main beams, the secondary beams in the non-integrated pipe gallery area, and the slab area, and pour concrete for the main beams, the secondary beams in the non-integrated pipe gallery area, and the slabs;

[0008] S3: pouring concrete for the post-cast floor slab of the integrated pipe gallery under the main beam;

[0009] S4: Set up the formwork support system for the integrated pipe gallery's hanging columns, shear walls, elevated layer beams, and slab areas, and pour concrete for the hanging columns, shear walls, and elevated layer beams and slabs in the integrated pipe gallery area;

[0010] S5: After the concrete strength of the elevated layer reaches the design strength and the predetermined age, the elevated layer is prestressed for a predetermined time.

[0011] Optionally, in the method for synchronous construction of the elevated layer and the integrated pipe gallery of the high-speed railway station building, in S1, the step of setting up the formwork support system for the non-main beam area below the elevated layer and the integrated pipe gallery includes the following sub-steps:

[0012] Based on the track-bearing layer concrete structure, a formwork support frame is erected to the lower part of the integrated pipeline corridor floor;

[0013] Install the formwork and steel bars of the integrated pipeline corridor floor.

[0014] Optionally, in the method for synchronous construction of the elevated layer and the integrated pipe gallery of the high-speed railway station building, in S2, the construction of the formwork support system for the elevated layer main beams, the secondary beams in the non-integrated pipe gallery area, and the slab area includes the following sub-steps:

[0015] Based on the concrete structure of the track-bearing layer, a formwork support frame is erected to the bottom of the elevated layer;

[0016] Install formwork and reinforcement for main beams, secondary beams and slabs in non-integrated pipeline corridor areas.

[0017] Optionally, in the method for synchronous construction of the elevated layer and integrated pipe corridor of the high-speed railway station building, in S4, the process of erecting the formwork support system of the integrated pipe corridor's hanging columns, shear walls, elevated layer beams, and slab areas includes the following sub-steps:

[0018] Based on the integrated pipe gallery floor, set up the formwork support frame to the elevated layer;

[0019] Install the formwork and reinforcement for the integrated pipeline corridor's hanging columns, shear walls, and elevated layered beams and slabs.

[0020] Optionally, in the method for synchronous construction of the elevated layer and integrated pipe gallery of a high-speed railway station building, step S5 includes the following sub-steps:

[0021] It is detected that the concrete strength of the elevated layer has reached the design strength and has been at the design strength for at least seven days;

[0022] The elevated layer was prestressed for three days.

[0023] Optionally, the method for synchronously constructing the elevated floor of a high-speed railway station and the integrated pipe gallery further includes the following steps:

[0024] S6: Seal the floor slab at the opening of the formwork support frame in the integrated pipeline corridor area.

[0025] In the synchronous construction method of the elevated layer and the integrated pipeline corridor of the high-speed railway station provided by the present invention, the concrete of the elevated layer and the integrated pipeline corridor are constructed in a positive manner, and the concrete structure construction of the elevated layer and the integrated pipeline corridor is carried out simultaneously, thereby reducing the construction time; at the same time, because the formwork support system only needs to be erected once, the secondary erection of the formwork support frame is eliminated compared with the reverse construction, thereby avoiding cross-operation with other units and improving safety and construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0027] Figure 1 This is a flow chart of a method for synchronous construction of an elevated layer and an integrated pipeline corridor of a high-speed railway station building according to an embodiment of the present invention;

[0028] Figure 2 Schematic diagram of executing S1 in the method for synchronous construction of the elevated floor and integrated pipe gallery of a high-speed railway station building according to one embodiment of the present invention;

[0029] Figure 3 1 is a schematic diagram of executing S2 in the method for synchronous construction of an elevated floor and an integrated pipe gallery of a high-speed railway station building according to an embodiment of the present invention;

[0030] Figure 4 1 is a schematic diagram of executing S3 in the method for synchronous construction of an elevated floor and an integrated pipe gallery of a high-speed railway station building according to an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of executing S4 in the synchronous construction method of the elevated layer and integrated pipeline corridor of a high-speed railway station building according to one embodiment of the present invention. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the method for synchronous construction of the elevated floor of a high-speed railway station and an integrated pipeline corridor proposed by the present invention, in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0034] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of an invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] Please refer to Figures 1 to 5 The method for synchronously constructing the elevated layer of the high-speed railway station and the integrated pipeline corridor includes the following steps:

[0038] First, please refer to Figure 2 , execute step S1, set up the formwork support system of the elevated layer and the non-main beam area under the integrated pipe corridor, and pour the concrete of the integrated pipe corridor floor in the non-main beam area (see Figure 2 The orange part); wherein, the formwork support system for the elevated layer and the non-main beam area below the integrated pipe gallery includes the following sub-steps:

[0039] Based on the track-bearing layer concrete structure, a formwork support frame is erected to the lower part of the integrated pipeline corridor floor;

[0040] Install the formwork and steel bars of the integrated pipeline corridor floor.

[0041] Next, please refer to Figure 3 , execute step S2, set up the formwork support system of the elevated layer main beam, the secondary beam in the non-integrated pipe gallery area and the plate area, and cast the concrete of the main beam, the secondary beam and the plate in the non-integrated pipe gallery area (see Figure 3The orange part); wherein, the formwork support system for erecting the elevated main beam, the secondary beam in the non-integrated pipe gallery area, and the plate area includes the following sub-steps:

[0042] Based on the concrete structure of the track-bearing layer, a formwork support frame is erected to the bottom of the elevated layer;

[0043] Install formwork and reinforcement for main beams, secondary beams and slabs in non-integrated pipeline corridor areas.

[0044] Next, please refer to Figure 4 , execute step S3, pour concrete for the post-cast floor slab of the integrated pipe gallery under the main beam (see Figure 4 middle orange part).

[0045] In order to prevent the cracking and collapse of the integrated pipeline corridor floor due to the vibration of the formwork support frame during the pouring of the main beam concrete, the concrete pouring of the integrated pipeline corridor post-casting zone floor under the main beam is carried out after the main beam concrete pouring is completed.

[0046] Next, please refer to Figure 5 , execute step S4, set up the formwork support system of the integrated pipe gallery area, shear wall, elevated layer beam and plate area, and carry out the concrete pouring of the integrated pipe gallery area, shear wall and elevated layer beam and plate (see Figure 5 The process of setting up the formwork support system for the integrated pipe gallery's suspenders, shear walls, elevated beams, and slab areas includes the following sub-steps:

[0047] Based on the integrated pipe gallery floor, set up the formwork support frame to the elevated layer;

[0048] Install the formwork and reinforcement for the integrated pipeline corridor's hanging columns, shear walls, and elevated layered beams and slabs.

[0049] Then, step S5 is executed, and after the concrete strength of the elevated layer reaches the design strength and the predetermined age, the elevated layer prestressing is performed for a predetermined time. Step S5 includes the following sub-steps:

[0050] S51: It is detected that the concrete strength of the elevated layer has reached the design strength and has been at the design strength for at least seven days;

[0051] S52: Prestressing of the elevated layer for three days.

[0052] Specifically, all supports under prestressed beams must be removed three days after the prestressed tendons are tensioned, the concrete strength reaches the design strength, and the grouting strength reaches 15MPa.

[0053] Next, step S6 is executed to seal the floor slab at the opening of the formwork support frame in the integrated pipeline corridor area.

[0054] like Figure 2 The formwork support system set up during the construction method of the present invention includes: a formwork support device 1 and a formwork reinforcement device 2, wherein the formwork support device 1 includes: an adjustable bottom support 3, a conversion base 3, a buckle vertical rod 5, a vertical diagonal rod 6, a buckle horizontal rod 7, a buckle pin 8 and an adjustable top seat 9; the formwork reinforcement device 2 includes: a tension screw 10, a steel pipe 11, a wooden square 12 and a formwork 13. The various components of the formwork support device 1 are fixed based on the various components in the formwork reinforcement device 2 to form a formwork support system. The positions of the various components can be referred to. Figure 2 , I will not go into details here.

[0055] The present invention's method for synchronously constructing the elevated floor and integrated pipe corridor of a high-speed railway station building utilizes a forward-construction method for the elevated floor and integrated pipe corridor. Compared to reverse-construction methods, this eliminates the need for secondary erection of formwork support frames, avoids cross-operation with other units, and improves safety and construction efficiency. Furthermore, while forward-construction ensures the safety of the formwork support system, simultaneous construction of the elevated floor and integrated pipe corridor concrete structures is performed, maximizing the solution to construction schedule issues.

[0056] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0057] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A method for synchronous construction of elevated floors and integrated pipe corridors of high-speed railway station buildings, characterized in that: The following steps are involved: S1: Set up the formwork support system for the elevated layer and the non-main beam area under the integrated pipe gallery, and pour the concrete for the integrated pipe gallery floor slab in the non-main beam area; S2: Set up the formwork support system for the elevated main beams, the secondary beams in the non-integrated pipe gallery area, and the slab area, and pour concrete for the main beams, the secondary beams in the non-integrated pipe gallery area, and the slabs; S3: pouring concrete for the post-cast floor slab of the integrated pipe gallery under the main beam; S4: Set up the formwork support system for the integrated pipe gallery's hanging columns, shear walls, elevated layer beams and slab areas, and pour concrete for the hanging columns, shear walls and elevated layer beams and slabs in the integrated pipe gallery area; S5: After the concrete strength of the elevated layer reaches the design strength and the predetermined age, the elevated layer is prestressed for a predetermined time.

2. The method for synchronous construction of elevated floors and integrated pipe corridors of a high-speed railway station building according to claim 1, characterized in that: In S1, the construction of the formwork support system for the elevated layer and the non-main beam area below the integrated pipe gallery includes the following sub-steps: Based on the track bearing layer concrete structure, a formwork support frame is erected to the lower part of the integrated pipe gallery floor; Install the formwork and steel bars for the floor slab of the integrated pipe gallery.

3. The synchronous construction method of the elevated layer and the integrated pipe gallery of the high-speed railway station building according to claim 1 is characterized in that: In S2, the erection of the formwork support system for the elevated main beam, the secondary beam in the non-integrated pipe gallery area, and the plate area includes the following sub-steps: Based on the track-bearing layer concrete structure, a formwork support frame is erected to the bottom of the elevated layer; Install formwork and reinforcement for main beams, secondary beams and slabs in non-integrated pipe gallery areas.

4. The method for synchronous construction of elevated layer and integrated pipe gallery of high-speed railway station building according to claim 1, characterized in that: In S4, the process of erecting the formwork support system of the integrated pipe gallery hanging columns, shear walls, elevated layer beams and slab areas includes the following sub-steps: Based on the integrated pipe gallery floor slab, set up the formwork support frame to the elevated layer; Install formwork and reinforcement for hanging columns, shear walls, and elevated beams and slabs of the integrated pipe gallery.

5. The method for synchronous construction of elevated layer and integrated pipe gallery of high-speed railway station building according to claim 1, characterized in that: Step S5 includes the following sub-steps: It is detected that the concrete strength of the elevated layer has reached the design strength and has been at the design strength for at least seven days; The elevated layer was prestressed for three days.

6. The method for synchronous construction of elevated layer and integrated pipe gallery of high-speed railway station building according to any one of claims 1 to 5, characterized in that: The following steps are also included: S6: Seal the floor slab at the opening of the formwork support frame in the integrated pipe gallery area.

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