An overhead beam type platform and a construction method thereof

Abstract

This invention proposes an elevated beam platform comprising: a steel platform, a base, and several parallel and vertically arranged support legs. The base is rotatably connected to one end of each support leg, and the other end of each support leg is connected to the steel platform. Installation is carried out layer by layer using the space within the beam grid, which is convenient, quick, and provides a full platform working surface, ensuring safety and efficiency. For situations where the bottom support foundation is at risk of water instability or the lower space cannot be occupied for extended periods, this invention effectively solves the construction problems of such multi-layer frame beam-column structures. By using an elevated steel platform between floors instead of erecting scaffolding from the bottom, the time spent on the lower foundation is greatly reduced. The support legs can rotate in the horizontal plane, allowing the supporting beams to be retracted. This steel platform completes the construction of all horizontal beams and tie beams in the vertical direction except for the top panel. The top panel can be constructed simply by adding approximately 1-2 meters of scaffolding to the steel platform, making the process convenient and quick.

Description

Technical Field

[0001] This invention relates to the field of building construction, specifically to an elevated beam platform and its construction method. Background Technology

[0002] With the development strategy of western China, the volume of inland waterway shipping has experienced a leapfrog development, and inland river wharves have sprung up one after another. Most inland river wharves need to adapt to steep bank slopes and large water level differences, and common types include double cantilever steel box girder pier structures, pier-pile-beam-slab structures, elevated ramp structures, high-pile truss structures, and high-pile frame structures. Among these, the high-pile frame structure is a commonly used structural form for wharves with large water level differences. The lower pile foundation can adapt to the bank slope topography, and the upper layered frame structure facilitates the berthing of hulls at different water levels. The construction of high-pile wharves differs from other civil engineering construction, with its unique characteristics: most of the construction work is carried out on or in the water, especially the main structure construction related to functional performance, which is the most important and difficult part of the entire high-pile wharf project. The construction plan not only needs to comprehensively consider the impact of wind, waves, current, and water level on operations on or in the water, but also requires the investment of a large amount of specialized construction equipment. Due to the influence of the annual water level difference, the construction of inland river high-pile wharves is inconvenient and the construction period is tight. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an elevated beam platform comprising: a steel platform, a base, and several parallel and vertically arranged support legs. The base is rotatably connected to one end of each support leg, and the other end of each support leg is connected to the steel platform.

[0004] Furthermore, the steel platform includes: a ring beam, main beams, secondary beams, and steel mesh. The ring beam is a square frame, and several main beams and secondary beams are provided on the ring beam. The steel mesh is welded to the upper part of the secondary beams.

[0005] Furthermore, it also includes a support rod, one end of which is connected to the support leg and the other end of which is connected to the steel platform. The support rod, the support leg, and the steel platform form a triangular stable structure.

[0006] Furthermore, the base includes: uprights and support beams, with the uprights provided at both ends of the support beams, and the support legs 3 provided on the upper surface of the support beams 41.

[0007] Furthermore, the support beam is provided with a limiting structure for fixing the support leg.

[0008] This invention also provides a construction method for a prefabricated high-pile wharf structure, including the following steps: S1, the steel platform and the outriggers are assembled on the ground;

[0009] S2. The supporting beam is assembled and placed at a diagonal position on the existing tie beam;

[0010] S3. The platform crane lifts the outriggers and moves them into the limiting structure on the support beam;

[0011] S4. Set up the mold and pour the concrete to obtain the upper beams and columns;

[0012] S5. The steel platform outriggers rotate to retract the support beam. The beam is hoisted to the upper beam position, and the outriggers rotate to open and place the support beam.

[0013] The present invention is further configured such that: in step S4, the specific construction method for obtaining the upper beams and columns includes: the internal transverse and longitudinal tie beams of the frame of the elevated beam platform, and the cast-in-place bottom formwork of the transverse and longitudinal beams.

[0014] The present invention is further configured such that: in step S4, the specific construction method for obtaining the upper beams and columns includes: the outer horizontal and longitudinal tie beams of the frame of the elevated beam platform and the cast-in-place bottom formwork of the side horizontal and longitudinal beams.

[0015] The present invention is further configured such that: in step S4, the specific construction method of obtaining the upper beam and column includes: the construction of the upper beam and column structure in step S4 is: the top-level horizontal beam, longitudinal beam, and cast-in-place bottom formwork of the frame of the elevated beam platform.

[0016] The advantages of this invention are as follows: This invention consists of a support beam, legs, and a platform. It is assembled on the ground and installed layer by layer using the space within the beam grid, which is convenient, quick, and provides a full-platform working surface, ensuring safety and efficiency. For situations where the bottom support foundation is at risk of water instability or the lower space cannot be occupied for a long time, this invention can effectively solve the construction problems of such multi-layer frame beam-column structures. By using an inter-layer elevated steel platform instead of erecting scaffolding from the bottom, it can greatly reduce the time spent on the lower foundation. The legs can rotate on the horizontal plane, allowing the support beam to be retracted. This steel platform completes the construction of all horizontal beams and tie beams in the vertical direction except for the top panel. The top panel can be constructed by adding about 1-2m of scaffolding to this steel platform, which is convenient and quick. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention.

[0019] Among them, 1. Steel platform; 11. Steel mesh; 12. Ring beam; 13. Main beam; 14. Secondary beam; 2. Support rod; 3. Support leg; 4. Base; 41. Support beam; 42. Column; 5. Limiting structure. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 invention 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 limitations on this invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, an overhead beam platform of this embodiment includes a steel platform 1, a base 4, and several parallel and vertically arranged support legs 3. The base 4 is rotatably connected to one end of the support legs 3, and the other end of the support legs 3 is connected to the steel platform 1.

[0025] Specifically, the steel platform 1 includes a ring beam 12, a main beam 13, a secondary beam 14, and a steel mesh 11. The ring beam 12 of the steel platform 1 is an I-beam 40b, which is bolted together to form a square frame. The secondary beam 14 is a channel steel, which is welded to the main beam 13 to serve as the rib beam of the steel platform 1. The upper part of the steel platform 1 is also enclosed by a welded steel mesh 11 to form the structure of the steel platform 1.

[0026] Specifically, the base 4 includes columns 42 and a support beam 41. The columns 42 are installed at both ends of the support beam 41, and the upper surface of the support beam 41 is provided with legs 3. The support beam 41 is welded from double-jointed 20b channel steel, and the two ends are fixed with bolts (not shown in the figure). Wedge-shaped pads (not shown in the figure) are inserted to serve as adjustment and unloading devices for the support beam 41. Two sets of wedge-shaped steel plates (not shown in the figure) are welded on the support beam 41 to serve as upper support leg limiting devices to ensure the stability of the support leg position during construction.

[0027] Specifically, the outriggers 3 are arranged in a matrix at the four corners of the steel platform 1 to provide support for the steel platform 1. One end of the outrigger 3 is welded to the steel platform 1 and is equipped with diagonal bracing. To ensure overall stability, the other end of the outrigger 3 is set on the limiting device of the support beam 41.

[0028] Preferably, in order to enhance the stability of the invention during construction, a support rod 2 is also provided. One end of the support rod 2 is connected to the support leg 3 and the other end is connected to the steel platform 1. The support rod 2, the support leg 3 and the steel platform 1 form a triangular stable structure.

[0029] Preferably, in order to make the support leg 3 more stably fixed on the support beam 41, a limiting structure 5 is provided on the support beam 41. The limiting structure 5 is connected to one end of the support beam 41 to fix the support beam 41.

[0030] Example 2

[0031] The present invention also provides a construction method for an elevated beam platform.

[0032] like Figure 1 , Figure 2 As shown, a construction method for an elevated beam platform in this embodiment includes the following steps: S1, the steel platform 1 and the support legs 3 are spliced ​​together on the ground;

[0033] S2, the support beam 41 is assembled and placed at a diagonal position on the existing tie beam;

[0034] S3. The platform crane lifts the outrigger 3 and moves it into the limiting structure 5 on the support beam 41, and then levels it.

[0035] S4. Set up the mold and pour the concrete to obtain the upper beams and columns;

[0036] Specifically, the construction method for the upper beams and columns obtained in step S4 includes: the internal transverse and longitudinal tie beams of the elevated beam platform frame, and the cast-in-place bottom formwork for the transverse and longitudinal beams. The bottom formwork for the supporting beams is erected on the steel platform 1, using plywood and timber or small steel beams to lay the bottom formwork.

[0037] S5. The steel platform 1 outrigger 3 rotates and retracts the support beam 41. The support beam 41 is hoisted to the position of the upper beam. The rotating outrigger 3 opens and places the support beam 41. The operation is repeated.

[0038] Example 3

[0039] The construction method of the elevated beam platform in this embodiment is basically the same as that in Embodiment 2, except for step S4.

[0040] like Figure 1 , Figure 2As shown, a construction method for an elevated beam platform in this embodiment includes the following steps: S1, the steel platform 1 and the support legs 3 are spliced ​​together on the ground;

[0041] S2, the support beam 41 is assembled and placed at a diagonal position on the existing tie beam;

[0042] S3. The platform crane lifts the outrigger 3 and moves it into the limiting structure 5 on the safety beam 41, and then levels it.

[0043] S4. Set up the mold and pour the concrete to obtain the upper beams and columns;

[0044] Specifically, the construction method for the upper beams and columns obtained in step S4 includes: cast-in-place bottom formwork for the outer horizontal and longitudinal tie beams and edge horizontal and longitudinal beams of the elevated beam platform frame. A horizontally rotatable tripod (not shown in the figure) is installed on the support leg 3. When laying the bottom formwork, the tripod rotates outward to support the bottom formwork. A beam platform (not shown in the figure) is installed on the outer side of the edge beam. When it is necessary to move the steel platform 1, the bottom formwork of the edge beam and the outer beam platform are first removed, and then the tripod is retracted to within the outer edge line of the steel platform 1 frame.

[0045] S5. The steel platform 1 outrigger 3 rotates and retracts the support beam 41. The support beam 41 is hoisted to the position of the upper beam. The rotating outrigger 3 opens and places the support beam 41. The operation is repeated.

[0046] Example 4

[0047] The construction method of the elevated beam platform in this embodiment is basically the same as that in Embodiment 2, except for step S4.

[0048] like Figure 1 , Figure 2 As shown, a construction method for an elevated beam platform in this embodiment includes the following steps: S1, the steel platform 1 and the support legs 3 are spliced ​​together on the ground;

[0049] S2, the support beam 41 is assembled and placed at a diagonal position on the existing tie beam;

[0050] S3. The platform crane lifts the outrigger 3 and moves it into the limiting structure 5 on the safety beam 41, and then levels it.

[0051] S4. Set up the mold and pour the concrete to obtain the upper beams and columns;

[0052] Specifically, the construction method for the upper beams and columns obtained in step S4 includes: casting the bottom formwork for the top-level horizontal beams, longitudinal beams, and panels of the elevated beam platform frame; laying the bottom formwork for the cast-in-place lower horizontal beams on steel platform 1; and using a low, full-span steel pipe scaffold to lay the bottom formwork for the longitudinal beams and panels on steel platform 1. The height of the low, full-span scaffold is approximately 1-2.5m. When casting the panels, four 10cm diameter holes are pre-drilled at the four corners of each beam panel for threading steel wire ropes to be used for dismantling the platform.

[0053] S5. The steel platform 1 outrigger 3 rotates and retracts the support beam 41. The support beam 41 is hoisted to the position of the upper beam. The rotating outrigger 3 opens and places the support beam 41. The operation is repeated.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction method for an elevated beam platform, characterized in that, The steps include: S1, the steel platform (1) and the outriggers (3) are assembled on the ground; S2, the support beam (41) is assembled and placed at the diagonal position on the existing tie beam. S3. The platform crane lifts the outrigger (3) and moves it into the limiting structure (5) on the support beam (41); S4. Set up the mold and pour the concrete to obtain the upper beams and columns; S5, steel platform (1) outrigger (3) rotates and retracts the support beam (41), hoisting to the upper beam position, rotating outrigger (3) to open the support beam (41) and place the support beam (41).

2. The construction method of the elevated beam platform according to claim 1, characterized in that, The specific construction methods for the upper beams and columns obtained in step S4 include: the internal transverse and longitudinal tie beams of the frame of the elevated beam platform, and the cast-in-place bottom formwork of the transverse and longitudinal beams.

3. The construction method of the elevated beam platform according to claim 2, characterized in that, The specific construction methods for the upper beams and columns obtained in step S4 include: the outer horizontal and longitudinal tie beams of the frame of the elevated beam platform, and the cast-in-place bottom formwork of the side horizontal and longitudinal beams.

4. The construction method of the elevated beam platform according to claim 3, characterized in that, In step S4, the specific construction method for the upper beams and columns includes: the top-level horizontal beams, longitudinal beams, and cast-in-place bottom formwork of the panel of the elevated beam platform.

5. An elevated beam platform, characterized in that, include: A steel platform (1), a base (4), and several parallel and vertically arranged support legs (3); the base (4) is rotatably connected to one end of the support leg (3), and the other end of the support leg (3) is connected to the steel platform (1); The base (4) includes: a column (42) and a support beam (41), the two ends of the support beam (41) are provided with the column (42), and the upper surface of the support beam (41) is provided with the support leg (3). The support beam (41) is provided with a limiting structure (5) for fixing the support leg (3); The elevated beam platform is used to perform a construction method that includes the following steps: S1. The steel platform (1) and the outriggers (3) are assembled on the ground; S2, the support beam (41) is assembled and placed at the diagonal position on the existing tie beam. S3. The platform crane lifts the outrigger (3) and moves it into the limiting structure (5) on the support beam (41); S4. Set up the mold and pour the concrete to obtain the upper beams and columns; S5, steel platform (1) outrigger (3) rotates and retracts the support beam (41), hoisting to the upper beam position, rotating outrigger (3) to open the support beam (41) and place the support beam (41).

6. The elevated beam platform according to claim 5, characterized in that, The steel platform (1) includes: a ring beam (12), a main beam (13), a secondary beam (14) and a steel mesh (11). The ring beam (12) is a square frame. Several main beams (13) and secondary beams (14) are provided on the ring beam (12). The steel mesh (11) is welded to the upper part of the secondary beams (14).

7. The elevated beam platform according to claim 5, characterized in that: It also includes a support rod (2), one end of which is connected to the support leg (3) and the other end is connected to the steel platform (1). The support rod (2), the support leg (3) and the steel platform (1) form a triangular stable structure.

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