Adjustable formwork structure of large-span column-free arc-shaped top plate of subway station

Abstract

The utility model discloses an adjustable formwork supporting structure of a large-span column-free arc-shaped top plate of a subway station, which comprises a plurality of arc-shaped I-shaped steel main ridges with arc-shaped structures, a plurality of supporting woods are sequentially arranged above the arc-shaped I-shaped steel main ridges at intervals along the arc-shaped direction, and wood formworks which are spliced into arc-shaped structures are arranged above the plurality of supporting woods; supporting vertical rods are vertically arranged below the arc-shaped I-shaped steel main ridges; the arc-shaped I-shaped steel main ridges are formed by splicing a plurality of sections, adjustable supporting structures are arranged below the joints of the adjacent sections, and the lower ends of the adjustable supporting structures are installed on the supporting vertical rods; the adjustable supporting structure is provided with a telescopic structure, and the two ends of the adjustable supporting structure are rotationally connected with the supporting vertical rods and the arc-shaped I-shaped steel main ridges correspondingly. By improving the steel wedge supporting structure, the angle of the inclined supporting plate can be conveniently adjusted when the angle of the arc-shaped I-shaped steel main ridge changes, and it is ensured that each supporting point can provide the best supporting effect for the wood formwork.

Description

TECHNICAL FIELD

[0001] The utility model relates to subway station construction technical field, more particularly, relate to a subway station large -span no -column arc roof's adjustable formwork structure. BACKGROUND

[0002] With the development of urban rail transit, people's demand for subway station is not only limited to taking a car, also includes transfer, diversion and commercial complex functions. Therefore, higher requirements are put forward for the space, appearance and comfort of subway station. Large-span no-column arc roof station has the advantages of stable structure, reasonable stress, high space utilization rate, beautiful appearance and the like. However, the cast-in-place large-span arc roof structure faces many challenges when designing and installing the formwork support system, such as high requirements for line type, waterproof performance and surface appearance, and it is difficult to collect the arc roof. The supporting wedge or steel wedge of the traditional structure cannot effectively adapt to the change of the arc, resulting in that the arc-shaped wooden formwork cannot be effectively supported.

[0003] Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that the supporting wedge or steel wedge of the traditional structure cannot effectively adapt to the change of the arc, resulting in that the arc-shaped wooden formwork cannot be effectively supported, and the utility model aims to provide an adjustable formwork structure for a large-span no-column arc roof of a subway station. By improving the steel wedge support structure, the angle of the inclined support plate can be easily adjusted when the angle of the arc-shaped I-beam changes, and the best support effect can be provided for the wooden formwork at each support point.

[0005] The utility model is implemented by the following technical scheme:

[0006] An adjustable formwork structure for a large-span no-column arc roof of a subway station comprises a plurality of arc-shaped I-beams arranged along the longitudinal direction and having an arc-shaped structure, a plurality of support woods are arranged above the arc-shaped I-beams in sequence along the arc direction, and a wooden formwork having an arc-shaped structure is arranged above the plurality of support woods.

[0007] A support stand is vertically arranged below the arc-shaped I-beam.

[0008] The arc-shaped I-beam is composed of a plurality of segments, an adjustable support structure is arranged below the connecting part of adjacent segments, and the lower end of the adjustable support structure is mounted on the support stand.

[0009] The adjustable support structure has a telescopic structure and is rotatably connected to the support stand and the arc-shaped I-beam at both ends.

[0010] The utility model discloses an adjustable support structure for arc I-beam formwork, which is characterized by comprising a support vertical rod, a first inclined support plate hinged to one end of the support vertical rod, and a second inclined support plate hinged to the front end of the first inclined support plate.

[0011] In a specific embodiment, the adjustable support structure comprises a telescopic rod, one end of the telescopic rod being hinged to the first inclined support plate, and the front end of the first inclined support plate being provided with the second inclined support plate, which is fixedly installed at the connection between adjacent segments.

[0012] In a specific embodiment, the other end of the telescopic rod is hinged to a bottom plate, which is installed on the support vertical rod.

[0013] The utility model discloses an adjustable support structure for arc I-beam formwork, which is characterized by comprising a support vertical rod, a first inclined support plate hinged to one end of the support vertical rod, and a second inclined support plate hinged to the front end of the first inclined support plate.

[0014] In a specific embodiment, the hinged structure between the telescopic rod, the bottom plate and the first inclined support plate is locked by a spring pin and a positioning hole. The utility model discloses an adjustable support structure for arc I-beam formwork, which is characterized by comprising a support vertical rod, a first inclined support plate hinged to one end of the support vertical rod, and a second inclined support plate hinged to the front end of the first inclined support plate.

[0015] In a specific embodiment, the telescopic rod comprises a first top support rod rotatably hinged to the bottom plate and a second top support rod rotatably hinged to the first inclined support plate, and a sliding connection adjusting slide cylinder is sleeved between the end portions of the first top support rod and the second top support rod. The utility model discloses an adjustable support structure for arc I-beam formwork, which is characterized by comprising a support vertical rod, a first inclined support plate hinged to one end of the support vertical rod, and a second inclined support plate hinged to the front end of the first inclined support plate.

[0016] In a specific embodiment, a lateral support structure is arranged between the support vertical rod and the lower end of the arc I-beam, and the lateral support structure adopts an adjustable support structure. The utility model discloses an adjustable support structure for arc I-beam formwork, which is characterized by comprising a support vertical rod, a first inclined support plate hinged to one end of the support vertical rod, and a second inclined support plate hinged to the front end of the first inclined support plate.

[0017] In a specific embodiment, a waterproof adhesive tape is arranged at the joint of the wood formwork.

[0018] In a specific embodiment, the lower end of the wooden formwork is provided with a sponge joint seal at the joint with the concrete.

[0019] The utility model discloses through setting up waterproof adhesive tape and sponge joint seal, can ensure that the joint will not appear the phenomenon of leaking pulp to guarantee the quality and appearance of concrete.

[0020] In a specific embodiment, the second inclined support plate is provided with a pressure sensor and a displacement sensor. The utility model sets up the sensor, can monitor the pressure distribution and displacement of each support point in real time, and the remote monitoring and early warning function is convenient for construction personnel to find potential problems in time and take corresponding measures, improves the controllability and safety of construction.

[0021] In a specific embodiment, the adjustable support structure is tightly connected with the arc-shaped I-beam main beam through the steel wire cable.

[0022] In a specific embodiment, the support wood at least spans two arc-shaped I-beam main beams.

[0023] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0024] 1. The adjustable formwork supporting structure of the subway station large-span column-free arc-shaped roof provided by the utility model embodiment can conveniently adjust the angle of the inclined support plate when the angle of the arc-shaped I-beam main beam changes, and ensure that each support point can provide the best support effect for the wooden formwork. The adjustable support structure with adjustable setting angle and length can realize accurate adjustment and support locking of each support point, and ensure the stability and safety during construction.

[0025] 2. The adjustable formwork supporting structure of the subway station large-span column-free arc-shaped roof provided by the utility model embodiment can make the first inclined support plate and the second inclined support plate have a larger angle adjustment range, so that each support point can tightly adhere to the arc-shaped I-beam main beam, thereby adapting to more complex curvature changes. In actual construction, when the angle of the arc-shaped I-beam main beam changes, the angle of the inclined support plate can be adjusted through the structure design of the two ends of the adjustable support structure being hinged, and each support point can provide the best support effect.

[0026] 3. The adjustable formwork supporting structure of the subway station large-span column-free arc-shaped roof provided by the utility model embodiment can increase a set of lateral support devices at the bottom of the arc-shaped I-beam main beam, provide additional lateral support, and further improve the lateral stability of the entire formwork supporting structure, thereby avoiding the lateral displacement problem that may occur in the traditional structure.

[0027] 4. The adjustable formwork structure of the large-span column-free arc-shaped roof of the subway station provided by the embodiment of the utility model, through the setting of the sensor, the pressure distribution and displacement condition of each support point can be monitored in real time, the potential problems can be found by the construction personnel in time and the corresponding measures can be taken, the remote monitoring and early warning function is improved, and the controllability and safety of the construction are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the exemplary embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without creating creative labor.

[0029] Fig. 1 The adjustable formwork structure of the large-span column-free arc-shaped roof of the subway station provided by the embodiment of the utility model;

[0030] Fig. 2 The adjustable support structure provided by the embodiment of the utility model.

[0031] The marks in the drawings and the corresponding names of parts:

[0032] 1-arc-shaped I-beam main beam, 2-supporting wood, 3-wood formwork, 4-supporting vertical rod, 5-adjustable support structure, 6-waterproof adhesive tape, 7-sponge joint, 8-lateral support structure;

[0033] 51-telescopic rod, 511-first top supporting rod, 512-second top supporting rod, 513-adjusting sliding cylinder, 52-first inclined supporting plate, 53-second inclined supporting plate, 54-bottom plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will combine the embodiments and the drawings to make the utility model more detailed, the schematic embodiments of the utility model and the description are only used to explain the utility model, and should not be regarded as a limitation on the utility model.

[0035] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model does not have to be implemented with these specific details. In other embodiments, in order to avoid obscuring the utility model, the well-known structures are not specifically described.

[0036] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0038] Example 1

[0039] like Figs. 1-2 As shown in the figure, the present invention provides an adjustable formwork structure for a large-span column-free arc-shaped roof slab of a subway station, including a plurality of arc-shaped I-beam main beams 1 arranged along the longitudinal direction, a plurality of supporting timbers 2 arranged at intervals along the arc direction above the arc-shaped I-beam main beams 1, and a wooden template 3 spliced ​​into an arc structure arranged above the plurality of supporting timbers 2.

[0040] A support pole 4 is vertically installed below the main rib of the arc-shaped I-beam 1;

[0041] The arc-shaped I-beam main rib 1 is composed of multiple segments spliced ​​together. An adjustable support structure 5 is provided below the connection between adjacent segments. The lower end of the adjustable support structure 5 is installed on the support pole 4.

[0042] The adjustable support structure 5 has a telescopic structure and its two ends are rotatably connected to the support pole 4 and the arc-shaped I-beam main beam 1, respectively.

[0043] The utility model discloses an adjustable support structure for arc I-shaped steel main beam, which is characterized by comprising a support vertical rod 4, a plurality of adjustable support structures 5 and a plurality of arc I-shaped steel main beams 1.

[0044] In a specific embodiment, the adjustable support structure 5 comprises a telescopic rod 51, one end of the telescopic rod is hingedly connected to a first inclined support plate 52, the front end of the first inclined support plate 52 is provided with a second inclined support plate 53, and the second inclined support plate 53 is fixedly installed at the connection between adjacent segments.

[0045] In a specific embodiment, the other end of the telescopic rod is hingedly connected to a bottom plate 54, and the bottom plate 54 is installed on the support vertical rod 4.

[0046] The utility model discloses a double-layer hinged structure, which can adjust the angle of the first inclined support plate and the second inclined support plate to a larger range, so that each support point can closely fit the arc I-shaped steel main beam, thereby adapting to more complex curvature changes. In actual construction, when the angle of the arc I-shaped steel main beam changes, the adjustable support structure can adjust the angle of the inclined support plate through the structure design of the two ends of the adjustable support structure, thereby ensuring that each support point can provide the best support effect.

[0047] In a specific embodiment, the hinged structure between the telescopic rod, the bottom plate 54 and the first inclined support plate 52 is locked by a spring pin and a positioning hole. The utility model discloses a locking mechanism added at the hinged structure, so that the inclined support plate can be firmly locked after being adjusted to the appropriate position, thereby preventing the position from deviating due to vibration or other external forces during construction.

[0048] In a specific embodiment, the telescopic rod 51 comprises a first top support rod 511 rotatably connected to the bottom plate 54 and a second top support rod 512 rotatably connected to the first inclined support plate 52, and a sliding connection adjusting slide cylinder 513 is sleeved between the end portions of the first top support rod 511 and the second top support rod 512. The utility model discloses a telescopic rod structure, which can adjust the entire adjustable support structure 5 to facilitate the installation of the inclined support plate at various angle and position support points.

[0049] In a specific embodiment, a lateral support structure 8 is arranged between the support vertical rod 4 and the lower end of the arc I-shaped steel main beam 1, and the lateral support structure adopts the adjustable support structure 5. The utility model discloses a set of lateral support devices added at the bottom of the arc I-shaped steel main beam, which provides additional lateral support and further improves the lateral stability of the entire formwork structure, thereby avoiding the lateral displacement problem that may occur in the traditional structure.

[0050] In a specific embodiment, a water-stopping adhesive tape 6 is arranged at the joint of the wood formwork 3.

[0051] In a specific embodiment, a sponge jointing strip 7 is arranged at the joint between the lower end of the wood formwork 3 and the concrete.

[0052] The utility model discloses a water-stopping adhesive tape and a sponge jointing strip are arranged, so that the leakage of concrete at the joint can be avoided, and the quality and appearance of the concrete can be ensured.

[0053] In a specific embodiment, a pressure sensor and a displacement sensor are arranged on the second inclined supporting plate 53. The utility model discloses a sensor is arranged, so that the pressure distribution and displacement of each supporting point can be monitored in real time, potential problems can be found by the construction personnel in time and corresponding measures can be taken, remote monitoring and early warning functions are provided, and the controllability and safety of construction are improved.

[0054] In a specific embodiment, the adjustable supporting structure 5 and the arc-shaped I-beam main girder 1 are tightly connected through the steel wire cable.

[0055] In a specific embodiment, the supporting wood 2 spans at least two arc-shaped I-beam main girders 1.

[0056] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for the specific embodiments of the utility model and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable formwork structure of a large-span column-free arched roof of a subway station, characterized in that, The arc-shaped I-beam main girder (1) is provided with a plurality of support woods (2) arranged in sequence and spaced apart along the arc-shaped direction above the arc-shaped I-beam main girder (1), and a wood formwork (3) in the form of arc-shaped structure is arranged above the plurality of support woods (2). The arc-shaped I-beam main girder (1) is provided with a support vertical rod (4) arranged vertically below the arc-shaped I-beam main girder (1). The arc-shaped I-beam main girder (1) is spliced by a plurality of segments, and an adjustable support structure (5) is arranged below the connecting portion of adjacent segments, and the lower end of the adjustable support structure (5) is mounted on the support vertical rod (4). The adjustable support structure (5) has a telescopic structure and is rotatably connected with the support vertical rod (4) and the arc-shaped I-beam main girder (1) at both ends.

2. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 1, characterized in that, The adjustable support structure (5) comprises a telescopic rod (51), one end of the telescopic rod is hingedly connected with a first inclined supporting plate (52), a second inclined supporting plate (53) is mounted at the front end of the first inclined supporting plate (52), and the second inclined supporting plate (53) is fixedly mounted at the connecting portion of adjacent segments.

3. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 2, characterized in that, The other end of the telescopic rod is hingedly connected with a bottom plate (54), and the bottom plate (54) is mounted on the support vertical rod (4).

4. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 3, characterized in that, The hinged structure between the telescopic rod, the bottom plate (54) and the first inclined supporting plate (52) is locked by a spring pin and a positioning hole.

5. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 3, characterized in that, The telescopic rod (51) comprises a first top supporting rod (511) rotatably connected with the bottom plate (54) and a second top supporting rod (512) rotatably connected with the first inclined supporting plate (52), and an adjustment sliding cylinder (513) is sleeved between the end portions of the first top supporting rod (511) and the second top supporting rod (512).

6. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 1, characterized in that, The support vertical rod (4) and the lower end of the arc-shaped I-beam main girder (1) are provided with a horizontally arranged lateral support structure (8), and the lateral support structure adopts the adjustable support structure (5).

7. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 1, characterized in that, A waterproof adhesive tape (6) is arranged at the joint of the wood formwork (3).

8. The adjustable formwork structure of a large-span column-free arc-shaped roof of a subway station according to claim 1, characterized in that, A sponge joint pressing (7) is arranged at the joint between the lower end of the wood formwork (3) and the concrete.

9. The adjustable formwork structure of a large-span column-free arched roof of a subway station according to claim 2, characterized in that, A pressure sensor and a displacement sensor are mounted on the second inclined supporting plate (53).

10. The adjustable formwork structure of a large-span column-free arched roof of a subway station according to claim 1, characterized in that, The adjustable support structure (5) and the arc-shaped I-beam main girder (1) are tightly connected by winding steel wire cables.

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