A device for high-altitude eave plate picking and a construction method thereof

Abstract

This invention discloses a formwork-free device for high-altitude eaves panels and its construction method, comprising an eaves panel body and an H-shaped steel beam. The eaves panel body includes a transverse steel cantilever plate, a longitudinal steel partition plate, a bottom steel mold, and an edge-sealing steel mold. The transverse steel cantilever plate is connected to the H-shaped steel beam, the longitudinal steel partition plate is connected to the transverse steel cantilever plate, the bottom steel mold is connected to the bottom of the transverse steel cantilever plate and the longitudinal steel partition plate, and the edge-sealing steel mold is connected to the end of the transverse steel cantilever plate. The beneficial effects of this invention are: the formwork-free device is successfully welded before hoisting, avoiding the risks and cumbersome high-altitude operations caused by conventional use of full-span or cantilever formwork. The formwork-free device for high-altitude eaves panels requires simple materials and has low cost, and the construction method is convenient to operate. This device and its construction method effectively solve the problems of high cost and high safety risks associated with erecting full-span or cantilever formwork during the construction of high-altitude eaves panels.

Description

Technical Field

[0001] This invention relates to the field of high-altitude eaves construction technology, and in particular to a formwork-free device for high-altitude eaves and its construction method. Background Technology

[0002] In the field of high-rise buildings, designers often design eaves panels at the mid-section or eaves of the building to make it more aesthetically pleasing. However, the construction of such eaves panels is often quite difficult, especially when the height of the eaves panel is more than 24 meters, which greatly increases the difficulty of formwork construction.

[0003] 1. A Chinese patent discloses a precast eaves panel and a post-installed precast eaves panel structure (Publication No.: ). The precast eaves panel has at least two rows of spaced anchor bolt holes. The lower part of the anchor bolt holes is cylindrical, and the upper part is flared. A tongue and groove joint is provided at the upper joint of each pair of adjacent eaves panels, and a first chamfer is provided on the lower side. A post-installed precast eaves panel structure is also provided, including the aforementioned precast eaves panel. The two rows of anchor bolt holes are respectively set corresponding to two building walls, and each anchor bolt hole contains an anchor bolt pre-embedded in the building wall. The upper part of the anchor bolt hole is sealed with waterproof mortar. The anchor bolt hole also includes a washer and a nut fitted onto the anchor bolt. This invention, by setting anchor bolt holes with a flared structure, facilitates the insertion of pre-embedded anchor bolts and the installation of nuts, ensuring the stability of the precast eaves panel on the building wall, reducing construction steps, and increasing efficiency. Furthermore, the two-layer waterproof structure between adjacent eaves boards ensures excellent waterproofing and a long service life.

[0004] 2. A precast eaves slab with U-shaped embedded parts (Publication No.:), comprising an eaves slab, a parapet wall, and U-shaped embedded parts. The eaves slab extends inward and outward respectively. A roof panel overlaps the inward-extending end of the eaves slab, and the outward-extending end of the eaves slab is rolled up and drooping. The upper and lower roots of the rolled up and drooping ends are respectively provided with V-shaped reinforcing angles. A parapet wall is built on the longitudinal beam at the root of the eaves slab. The U-shaped embedded parts are arranged in an array on the eaves slab. The upper and lower ends of the U-shaped embedded parts extend out of the upper and lower sides of the precast eaves slab and are embedded in the parapet wall and the longitudinal beam respectively. This invention strengthens the shape of the rolled up and drooping eaves by adding V-shaped reinforcing angles, preventing water leakage at the T-junction. The addition of a parapet wall on the longitudinal beam at the root of the eaves slab, and the arrangement of multiple U-shaped embedded parts at the root of the eaves slab, can effectively prevent the eaves slab from overturning.

[0005] In the existing technology, the common practice is to erect ground-supported formwork or set up cantilevered formwork from the lower structure. This approach is not only less safe, but also has high costs for scaffolding erection and dismantling. It is essential to find a construction tool and method that is simple to operate, safe, and low in cost.

[0006] Therefore, it is necessary to propose a formwork-free device and its construction method for high-altitude eaves panels to address the above issues. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the purpose of this invention is to provide a formwork-free device for high-altitude eaves panels and its construction method to solve the above problems.

[0008] A formwork-free device for high-altitude eaves panels includes an eaves panel body and an H-shaped steel beam. The eaves panel body includes a transverse steel cantilever plate, a longitudinal steel partition plate, a bottom steel mold, and an edge sealing steel mold. The transverse steel cantilever plate is connected to the H-shaped steel beam, the longitudinal steel partition plate is connected to the transverse steel cantilever plate, the bottom steel mold is connected to the bottom of the transverse steel cantilever plate and the longitudinal steel partition plate, and the edge sealing steel mold is connected to the end of the transverse steel cantilever plate.

[0009] Preferably, the root of the transverse steel cantilever plate is beveled.

[0010] Preferably, the root of the transverse steel cantilever plate is welded to the H-beam.

[0011] Preferably, the transverse steel cantilever plate, longitudinal steel partition plate, and edge sealing steel mold are all connected to the bottom steel mold by welding.

[0012] Preferably, the transverse steel cantilever plate and the bottom steel mold are respectively provided with a first reinforcing rib and a second reinforcing rib.

[0013] Preferably, the lower part of the transverse steel cantilever plate has a first reinforcing bar hole, the end of the transverse steel cantilever plate has an installation hole for cable connection, and the longitudinal steel partition plate has a second reinforcing bar hole.

[0014] Preferably, one end of the stay cable is connected to the mounting hole on the transverse steel cantilever plate, and the other end of the stay cable is connected to the upper part of the floor slab.

[0015] Preferably, the stay cable is a steel wire rope.

[0016] Preferably, the height of the longitudinal steel partition is the same as the height of the transverse steel cantilever, and the height of the edge sealing steel mold is the same as the thickness of the eaves panel body; the length of the longitudinal steel partition is determined according to the longitudinal length of the eaves panel; and the planar dimensions of the bottom steel mold are determined according to the length and width of the eaves panel.

[0017] A construction method for a formwork-free device for high-altitude eaves slabs, the construction method being as follows:

[0018] S1: Prepare various components for the formwork-free eaves board device. First, grind and rust-proof the surfaces of the transverse steel cantilever board, longitudinal steel partition board, bottom steel mold and edge sealing steel mold, and then spray anti-corrosion and fireproof paint.

[0019] S2: Weld the longitudinal steel partitions to the transverse steel cantilever plates on the ground to form an integral frame with the transverse steel cantilever plates and the longitudinal steel partitions. Full welding is required during welding.

[0020] S3: Weld a bottom steel mold to the bottom of the welded overall frame, and weld an edge sealing steel mold to the end of the horizontal steel cantilever plate;

[0021] S4: After the whole assembly is completed, weld the root of the transverse steel cantilever plate to the H-beam. The weld joint is a bevel, and the weld strength should reach the material strength of the transverse steel cantilever plate. Welding should not damage the structure of the H-beam itself.

[0022] S5: Hoist the H-beam and the formwork-free device together, fix and level them, install the stay cables, and after verifying that the elevation and flatness are correct, insert the reinforcing bars into the reserved reinforcing bar holes of the transverse steel cantilever and longitudinal steel partition and tie them. Finally, pour the concrete. Before pouring the concrete, verify the elevation and flatness again to prevent the formwork-free device from deflecting too much and deforming, which would affect the appearance of the eaves slab.

[0023] Compared with the prior art, the present invention has the following advantages: The present invention successfully welds the formwork-free device before hoisting, avoiding the risks and cumbersome high-altitude operations caused by the conventional use of full-span or cantilever formwork. The formwork-free device for high-altitude eaves is simple in material and low in cost, and the construction method is convenient to operate. The use of this device and its construction method effectively solves the problems of high cost and high safety risks of erecting full-span or cantilever formwork during the construction of high-altitude eaves. Attached Figure Description

[0024] Figure 1 This is a top view of the formwork-free device for high-altitude eaves panels according to the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of AA section;

[0026] Figure 3 for Figure 1 A magnified view of a portion of the image;

[0027] Figure 4 for Figure 2 A magnified view of a portion of the image;

[0028] Figure 5 This is a flowchart of the construction method of the present invention.

[0029] The attached diagram is labeled as follows: 1. Horizontal steel cantilever plate; 2. Longitudinal steel partition plate; 3. Bottom steel mold; 4. Edge sealing steel mold; 5. Cable tie; 6. H-beam; 7. Eaves plate body; 8. Floor slab; 9. First reinforcing bar; 10. Second reinforcing bar; 11. First reinforcing bar hole; 12. Second reinforcing bar hole; 13. Installation hole. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0034] like Figure 1 and combined Figures 2 to 5 As shown, a formwork-free device for high-altitude eaves panels includes an eaves panel body 7 and an H-shaped steel beam 6. The eaves panel body 7 includes a transverse steel cantilever 1, a longitudinal steel partition 2, a bottom steel mold 3, and an edge sealing steel mold 4. The transverse steel cantilever 1 is connected to the H-shaped steel beam 6, the longitudinal steel partition 2 is connected to the transverse steel cantilever 1, the bottom steel mold 3 is connected to the bottom of the transverse steel cantilever 1 and the longitudinal steel partition 2, and the edge sealing steel mold 4 is connected to the end of the transverse steel cantilever 1.

[0035] Furthermore, the root of the transverse steel cantilever plate 1 is beveled.

[0036] Furthermore, the root of the transverse steel cantilever plate 1 is welded to the H-shaped steel beam 6.

[0037] Furthermore, the transverse steel cantilever plate 1, the longitudinal steel partition plate 2, and the edge sealing steel mold 4 are all connected to the bottom steel mold 3 by welding.

[0038] Furthermore, the transverse steel cantilever plate 1 and the bottom steel mold 3 are respectively provided with a first reinforcing rib 9 and a second reinforcing rib 10.

[0039] Furthermore, the lower part of the transverse steel cantilever plate 1 is reserved with a first reinforcing bar hole 11, the end of the transverse steel cantilever plate 1 is reserved with an installation hole 13 for connecting the cable 5, and the longitudinal steel partition plate 2 and the edge sealing steel mold 4 are both reserved with a second reinforcing bar hole 12.

[0040] Furthermore, one end of the stay cable 5 is connected to the mounting hole 13 on the transverse steel cantilever plate 1, and the other end of the stay cable 5 is connected to the upper part of the floor slab 8.

[0041] Furthermore, the stay cable 5 is a steel wire rope.

[0042] Furthermore, the height of the longitudinal steel partition 2 is the same as the height of the transverse steel cantilever 1, and the height of the edge sealing steel mold 4 is the same as the thickness of the eaves board body; the length of the longitudinal steel partition 2 is determined according to the longitudinal length of the eaves board; the planar dimensions of the bottom steel mold 3 are determined according to the length and width of the eaves board.

[0043] The transverse steel cantilever plate 1 is 30mm thick, the bottom steel mold 3 is a 6mm thick Q355B steel plate, the longitudinal steel partition 2 is a 10mm thick Q355B steel plate, the edge sealing steel mold 4 is a 10mm thick Q355B steel plate, and the inclined cable 5 is a 6×19 (φ18.5) steel wire rope.

[0044] Compared with existing technologies, the present invention has the following advantages: The present invention successfully welds the formwork-free device before hoisting, avoiding the risks and complexities of high-altitude operations associated with conventional full-span or cantilevered formwork. The formwork-free device for high-altitude eaves slabs requires simple and low-cost materials, and the construction method is convenient. This device and its construction method effectively solve the problems of high cost and high safety risks associated with erecting full-span or cantilevered formwork during high-altitude eaves slab construction. Installation is simple, construction speed is faster, and stress analysis and construction simulation are performed using software such as PKPM and Revit, making it safer to use.

[0045] Construction method: The construction steps are as follows:

[0046] S1: Prepare various components for the eaves board formwork-free device. First, grind and rust-proof the surfaces of the transverse steel cantilever board 1, longitudinal steel partition board 2, bottom steel mold 3 and edge sealing steel mold 4, and then spray anti-corrosion and fireproof paint.

[0047] S2: Weld the longitudinal steel partition 2 to the transverse steel cantilever 1 on the ground so that the transverse steel cantilever 1 and the longitudinal steel partition 2 form an integral frame. Full welding is required during welding.

[0048] S3: Weld the bottom steel mold 3 to the bottom of the welded overall frame, and weld the edge sealing steel mold 4 to the end of the horizontal steel cantilever plate 1;

[0049] S4: After the whole assembly is completed, weld the root of the transverse steel cantilever plate 1 to the H-beam 6. The weld joint is a bevel, and the weld strength should reach the material strength of the transverse steel cantilever plate 1. The welding should not damage the structure of the H-beam 6 itself.

[0050] S5: Hoist the H-beam 6 and the formwork-free device together, fix and level them, install the cable ties 5, and after verifying that the elevation and flatness are correct, insert the reinforcing bars into the reserved reinforcing bar holes of the transverse steel cantilever slab 1 and the longitudinal steel partition 2 and tie them. Finally, pour the concrete. Before pouring the concrete, verify the elevation and flatness again to prevent the formwork-free device from deflecting too much and deforming, which would affect the appearance of the eaves slab.

[0051] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A construction method for a formwork-free device for high-altitude eaves panels, characterized in that: The high-altitude eaves board formwork-free device includes an eaves board body (7) and an H-shaped steel beam (6). The eaves board body (7) includes a transverse steel cantilever board (1), a longitudinal steel partition (2), a bottom steel mold (3), and an edge sealing steel mold (4). The transverse steel cantilever board (1) is connected to the H-shaped steel beam (6), the longitudinal steel partition (2) is connected to the transverse steel cantilever board (1), the bottom steel mold (3) is connected to the bottom of the transverse steel cantilever board (1) and the longitudinal steel partition (2), and the edge sealing steel mold (4) is connected to the end of the transverse steel cantilever board (1). The root of the transverse steel cantilever board (1) is beveled. The root of the transverse steel cantilever board (1) is welded to the H-shaped steel beam (6). The cantilever plate (1), longitudinal steel partition plate (2), and edge sealing steel mold (4) are all connected to the bottom steel mold (3) by welding. The transverse steel cantilever plate (1) and the bottom steel mold (3) are respectively provided with a first reinforcing rib (9) and a second reinforcing rib (10). The lower part of the transverse steel cantilever plate (1) is reserved with a first reinforcing bar hole (11), and the end of the transverse steel cantilever plate (1) is reserved with an installation hole (13) for connecting the cable (5). The longitudinal steel partition plate (2) is reserved with a second reinforcing bar hole (12). One end of the cable (5) is connected to the installation hole on the transverse steel cantilever plate (1), and the other end of the cable (5) is connected to the upper part of the floor slab (8). The construction method steps include: S1: Prepare various components of the eaves board formwork-free device. First, grind and prevent rust on the surfaces of the transverse steel cantilever board (1), longitudinal steel partition board (2), bottom steel mold (3) and edge sealing steel mold (4), and then spray anti-corrosion and fireproof paint. S2: Weld the longitudinal steel partition (2) onto the transverse steel cantilever (1) on the ground so that the transverse steel cantilever (1) and the longitudinal steel partition (2) form an integral frame; S3: Weld a bottom steel mold (3) to the bottom of the welded overall frame, and weld an edge sealing steel mold (4) to the end of the transverse steel cantilever plate (1). S4: After the overall frame is assembled, the root of the transverse steel cantilever plate (1) is welded to the H-beam (6); S5: Hoist the H-beam (6) and the eaves board together, fix and level them, install the cable stays (5), and after verifying that the elevation and flatness are correct, insert the reinforcing bars into the reserved reinforcing bar holes of the transverse steel cantilever (1) and the longitudinal steel partition (2) and tie them, and finally pour the concrete.

2. The construction method for a formwork-free device for high-altitude eaves panels as described in claim 1, characterized in that: The stay cable (5) is a steel wire rope.

3. The construction method for a formwork-free device for high-altitude eaves as described in claim 1, characterized in that: The height of the longitudinal steel partition (2) is the same as the height of the transverse steel cantilever (1), and the height of the edge sealing steel mold (4) is the same as the thickness of the eaves board body (7).

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