Suspended formwork structure for high-rise roof concrete cornice and construction method of suspended formwork structure

Abstract

The invention discloses a suspended formwork structure for a high-rise roof concrete cornice and a construction method of the suspended formwork structure. The suspended formwork structure comprises a plurality of supports, the supports are installed on a roof panel, the lower portions of the supports are attached to a parapet wall on the outer edge of the roof panel, the upper portions of the supports extend to the upper portion of the parapet wall, and the supports are arranged along the outer edge of the roof panel at intervals; the wall attaching pieces are attached to the outer side of the parapet wall, the positions of the wall attaching pieces correspond to the positions of the supports, and the wall attaching pieces are connected to the supports through opposite-pulling assemblies; the bottom formwork is provided with a first side and a second side which are opposite to each other, the first side is installed on the wall attaching piece, the upper surface of the bottom formwork is flush with the top face of the parapet wall, the second side is turned upwards to form an outer side formwork, and a length-adjustable diagonal draw bar is connected between the outer side formwork and the upper portion of the support; and the inner side templates are arranged between every two adjacent brackets. The problem that a large number of aerial work platforms are erected on the roof concrete cornice through a traditional construction method, and the work amount exists is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a hanging formwork structure for high-rise roof concrete eaves and a construction method thereof. Background Art

[0002] In today's world of continuous innovation in architectural design concepts and construction techniques, modern high-rise buildings are pursuing an increasingly extreme fusion of aesthetics and functionality. To create a unique and layered facade effect, more and more high-rise buildings are opting for concrete cantilevers atop roof parapets. This design not only imbues the building with a unique artistic flair but also effectively provides wind and rain protection, becoming a key element in enhancing the overall quality of the building.

[0003] However, traditional construction methods often rely on external scaffolding to support the formwork system. This requires the installation of numerous aerial work platforms outside the building, making the construction process cumbersome, time-consuming, and labor-intensive. It also increases the risks of working at height. During construction, there are safety hazards such as scaffolding instability and formwork collapse, posing a potential threat to the lives of construction workers. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, a hanging formwork structure for high-rise roof concrete eaves and a construction method thereof are now provided to solve the problem of the workload of setting up a large number of aerial work platforms when using traditional construction methods for roof concrete eaves.

[0005] To achieve the above object, a hanging formwork structure for high-rise roof concrete eaves is provided, comprising:

[0006] A plurality of brackets, each of which is mounted on a roof panel, wherein a lower portion of each bracket is attached to a parapet at an outer edge of the roof panel, and an upper portion of each bracket extends above the parapet, and the plurality of brackets are spaced apart along the outer edge of the roof panel;

[0007] A plurality of wall attachments are attached to the outer side of the parapet, the positions of the wall attachments correspond to the positions of the brackets, and the wall attachments are connected to the brackets via tensioning components;

[0008] A bottom template, the bottom template having a first side and a second side opposite to each other, the first side being mounted on the wall attachment, the upper surface of the bottom template being flush with the top surface of the parapet, the second side being turned up to form an outer template, a length-adjustable inclined rod being connected between the outer template and the upper portion of the bracket;

[0009] The inner formwork is installed between two adjacent brackets, and a pouring space for pouring concrete eaves is formed between the inner formwork and the top surface of the parapet, the bottom formwork and the outer formwork.

[0010] Furthermore, the bracket includes:

[0011] A column rests against the inner side of the parapet, the wall attachment is connected to the column via a tension assembly, the inclined tie rod is connected between the upper portion of the column and the outer formwork, and the inner formwork is connected between the columns of two adjacent brackets;

[0012] A ground beam is installed on the roof panel, and one end of the ground beam is connected to the lower part of the column;

[0013] The diagonal brace is connected between the column and the other end of the ground beam.

[0014] Furthermore, the support further includes a connecting beam, and the connecting beam is connected to the ground beams of the multiple supports.

[0015] Furthermore, the tensioning assembly includes:

[0016] A through-wall screw is inserted into the parapet, the columns and the wall attachments are respectively provided with through-holes, and both ends of the through-wall screw are respectively inserted into the through-holes of the columns and the wall attachments;

[0017] The screw-fitting parts are screwed on both ends of the wall-penetrating screw rod, and the screw-fitting parts at both ends of the wall-penetrating screw rod are respectively pressed against the opposite sides of the column and the wall-attached part.

[0018] Furthermore, the wall-penetrating screw is a water-stop screw, and the water-stop plate in the middle of the water-stop screw is embedded in the parapet.

[0019] Furthermore, both ends of the diagonal tie rod are hinged to the upper portion of the column and the outer template respectively.

[0020] Furthermore, the inclined tie rod includes:

[0021] Two coaxially arranged threaded rods, the opposite ends of the two threaded rods being hingedly connected to the upper portion of the column and the outer template respectively;

[0022] A straight threaded sleeve, wherein the opposite ends of the two threaded rods are respectively screwed into the two ends of the straight threaded sleeve.

[0023] Furthermore, a rib is formed at the bottom of the bottom template, a socket groove is formed at the top of the wall attachment, and the rib is inserted in the socket groove.

[0024] The present invention provides a construction method for a hanging formwork structure for a high-rise roof concrete eave, comprising the following steps:

[0025] Installing a plurality of brackets on the roof panel so that the lower portion of the brackets is in contact with the parapet at the outer edge of the roof panel, the upper portion of the brackets extends above the parapet, and the plurality of brackets are spaced apart along the outer edge of the roof panel;

[0026] attaching a plurality of wall attachments to the outer side of the parapet so that the positions of the wall attachments correspond to the positions of the brackets;

[0027] Connecting the wall attachment to the bracket via a tensioning assembly;

[0028] Mounting a first side of a bottom template on the wall attachment member so that an upper surface of the bottom template is flush with a top surface of the parapet;

[0029] Connecting the diagonal tie rod between the outer formwork on the second side of the bottom formwork and the upper portion of the bracket;

[0030] An inner formwork is installed between two adjacent brackets, so that a pouring space for pouring concrete eaves is formed between the inner formwork and the top surface of the parapet, the bottom formwork and the outer formwork.

[0031] The present invention provides a beneficial effect in that the formwork structure for concrete eaves on high-rise roofs comprises a wall attachment with a socket-shaped slot at the top installed on the outer side of the parapet, a bracket made of square steel installed at a corresponding position on the inner side of the parapet, and a lug plate installed on the top of the bracket's column. The lower portion of the column is secured to the wall attachment internally and externally with tie rods. The bottom of the concrete eaves is formed with a bottom formwork, the first side of which is formed with a rib mounted in the socket-shaped slot of the wall attachment. The second side of the bottom formwork is turned up to form an outer formwork, the top of which is provided with a lug plate. A retractable diagonal tie rod is used to connect the bottom formwork to the upper portion of the column inside the parapet. The inner formwork is a steel formwork, which is bolted to the column of the bracket.

[0032] The hanging formwork structure for high-rise roof concrete eaves of the present invention is relatively simple in construction and avoids using external scaffolding as a construction system for concrete components, thereby greatly reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0034] Figure 1 The present invention is a structural schematic diagram of a hanging formwork structure for a high-rise roof concrete eaves according to an embodiment of the present invention.

[0035] Figure 2 Schematic diagram of the structure of the bracket according to an embodiment of the present invention.

[0036] Figure 3Schematic diagram of the structure of the bottom of the bottom template according to an embodiment of the present invention.

[0037] Figure 4 This is a schematic diagram of the use status of the hanging formwork structure for high-rise roof concrete eaves according to an embodiment of the present invention.

[0038] Reference numerals:

[0039] Support 1, column 11, ground beam 12, diagonal brace 13, connecting beam 14;

[0040] Wall attachment 2, wall-penetrating screw 21, screw-fitting part 22;

[0041] Bottom template 3, outer template 31, diagonal rod 32, insert rib 33;

[0042] Inner template 4;

[0043] Roof panel 5;

[0044] Parapet 6;

[0045] Concrete overhang 7. DETAILED DESCRIPTION

[0046] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] Reference Figures 1 to 4 As shown, the present invention provides a hanging formwork structure for high-rise roof concrete eaves, including: a bracket 1, a wall attachment 2, a bottom formwork 3, and an inner formwork 4.

[0049] In this embodiment, the outer edge of the roof panel 5 is cast to form a parapet 6. The parapet is a concrete structure.

[0050] There are multiple brackets 1. Each bracket 1 is mounted on a roof panel 5. The lower portion of each bracket 1 is attached to a parapet 6 at the outer edge of the roof panel 5. The upper portion of each bracket 1 extends vertically upward along the inner wall of the parapet to the top of the parapet 6. Multiple brackets 1 are spaced apart along the outer edge of the roof panel 5.

[0051] Preferably, the plurality of brackets are arranged at equal intervals along the outer edge of the roof panel.

[0052] There are multiple wall attachments 2. The wall attachments 2 are attached to the outer side of the parapet 6. The position of the wall attachments 2 corresponds to the position of the bracket 1. The wall attachments 2 are connected to the bracket 1 through a tensioning assembly.

[0053] In this embodiment, the wall attachment is a square steel bar, which is arranged vertically, with the top of the square steel bar flush with the top surface of the parapet.

[0054] The bottom formwork 3 is a steel formwork. It has opposing first and second sides. The first side of the bottom formwork 3 is mounted to the wall attachment 2. The top surface of the bottom formwork 3 is flush with the top surface of the parapet 6. The second side of the bottom formwork 3 is folded upward to form the outer formwork 3. An adjustable diagonal brace 32 is connected between the outer formwork 31 and the upper portion of the bracket 1.

[0055] The number of the inner template 4 is multiple. Specifically, an inner template 4 is installed between two adjacent brackets 1.

[0056] In this embodiment, a pouring space for pouring the concrete overhang 7 is formed between the inner formwork 4 and the top surface of the parapet 6 , the bottom formwork 3 and the outer formwork 31 .

[0057] See Figure 2 As shown, the support is a triangular support frame. Specifically, the support 1 includes: a column 11, a ground beam 12, and a diagonal support rod 13.

[0058] The columns 11 are against the inner side of the parapet 6. The wall attachment 2 is connected to the columns 11 through the tension assembly, and the diagonal tie rod 32 is connected between the upper part of the column 11 and the outer formwork 31. The inner formwork 4 is connected between the columns 11 of two adjacent brackets 1.

[0059] The ground beam 12 is installed on the roof panel 5. One end of the ground beam 12 is connected to the lower part of the column 11.

[0060] The diagonal bracing rod 13 is connected between the column 11 and the other end of the ground beam 12 .

[0061] In this embodiment, the ground beam is perpendicular to the wall surface of the parapet, and the position of the upper end of the diagonal bracing rod corresponds to the position of the inner formwork.

[0062] As a preferred embodiment, the support 1 further includes a connecting beam 14. The connecting beam 14 is connected to the ground beams 12 of the multiple supports 1.

[0063] Combine Figure 1 and Figure 2 As shown, the pulling assembly includes: a wall-penetrating screw 21 and a screw-fitting member 22.

[0064] The through-wall screw 21 is inserted into the parapet 6. The middle portion of the through-wall screw is embedded in the parapet. The column 11 and the wall attachment 2 are respectively provided with through-holes. The two ends of the through-wall screw 21 are respectively inserted into the through-holes of the column 11 and the wall attachment 2.

[0065] The screw-engaging members 22 are screwed on both ends of the wall-penetrating screw rod 21. The screw-engaging members 22 at both ends of the wall-penetrating screw rod 21 are pressed against the opposite sides of the column 11 and the wall attachment member 2 respectively.

[0066] In this embodiment, the screw member is a nut. The through-wall screw 21 is a water-stop screw. The water-stop plate in the middle of the water-stop screw is embedded in the parapet 6.

[0067] See Figure 1 As shown, the two ends of the diagonal tie rod 32 are respectively hinged to the upper part of the column 11 and the outer template 31. Specifically, the column and the outer template are respectively formed with ear plates. The two ends of the diagonal tie rod are respectively hinged to the ear plates.

[0068] In this embodiment, the diagonal tie rod 32 includes two threaded rods and a straight threaded sleeve.

[0069] The two threaded rods are coaxially arranged, and the opposite ends of the two threaded rods are respectively hingedly connected to the upper part of the column 11 and the outer template 31. The opposite ends of the two threaded rods are respectively screwed into the two ends of the straight threaded sleeve.

[0070] The length of the diagonal tie rod can be adjusted by turning the straight thread sleeve.

[0071] See Figure 3 As shown, the bottom of the bottom template 3 is formed with an insert rib 33. The top of the wall attachment 2 is formed with a socket groove. The insert rib 33 is inserted into the socket groove.

[0072] In this embodiment, a socket groove is formed on one side of the top of the wall attachment. The inserting rib is formed on the first side of the bottom template.

[0073] The present invention provides a construction method for a hanging formwork structure for a high-rise roof concrete eave, comprising the following steps:

[0074] S1. Install multiple brackets 1 on the roof panel 5 so that the lower part of the bracket 1 is in contact with the parapet 6 at the outer edge of the roof panel 5, and the upper part of the bracket 1 extends above the parapet 6. Multiple brackets 1 are spaced apart along the outer edge of the roof panel 5.

[0075] S2. Attach multiple wall attachments 2 to the outer side of the parapet 6 so that the positions of the wall attachments 2 correspond to the positions of the brackets 1 .

[0076] S3. Connect the wall attachment 2 to the bracket 1 through the tensioning assembly.

[0077] S4. Install the first side of the bottom formwork 3 on the wall attachment 2 so that the upper surface of the bottom formwork 3 is flush with the top surface of the parapet 6.

[0078] S5. Connect the diagonal tie rod 32 between the outer template 31 on the second side of the bottom template 3 and the upper part of the bracket 1.

[0079] S6. Install the inner formwork 4 between two adjacent brackets 1 so that a pouring space for pouring the concrete overhang 7 is formed between the inner formwork 4 and the top surface of the parapet 6, the bottom formwork 3 and the outer formwork 31.

[0080] The present invention provides a hanging formwork structure for high-rise roof concrete eaves. A wall attachment with a socket-shaped slot at the top is installed on the outside of the parapet. A bracket made of square steel is installed at a corresponding position on the inside of the parapet. The bracket's columns are topped with lugs, and the lower portions of the columns are secured to the wall attachment internally and externally with tie rods. The bottom of the concrete eaves is formed with a bottom formwork. The first side of the bottom formwork has a rib that fits within the socket-shaped slot of the wall attachment. The second side of the bottom formwork is turned up to form an outer formwork. The outer formwork has a lug at the top, and a retractable diagonal tie rod connects the bottom formwork to the upper portion of the inner column of the parapet. The inner formwork is a steel formwork, bolted to the bracket's columns.

[0081] The hanging formwork structure for high-rise roof concrete eaves of the present invention is relatively simple in construction and avoids using external scaffolding as a construction system for concrete components, thereby greatly reducing safety hazards.

[0082] The present invention's hanging formwork structure for high-rise roof concrete eaves simplifies the construction process thanks to its ingenious mechanical design and innovative structural construction. It eliminates the need for large, complex external scaffolding as a construction system for concrete components, significantly reducing the amount of overhead work required and effectively avoiding safety risks such as frame instability and falls. This significantly improves construction safety and provides reliable assurance for the smooth progress of the project.

[0083] The erection of the hanging formwork structure for the concrete eaves of a high-rise roof according to the present invention does not require the erection of an additional external scaffolding, and the construction is convenient and efficient, the process is simplified, and the construction period is significantly shortened.

[0084] The hanging formwork structure for high-rise roof concrete eaves of the present invention avoids the risk of high-altitude falling of traditional cantilever formwork through a reverse tension force design, is particularly suitable for high-rise or super-high-rise buildings, and significantly improves safety.

[0085] The hanging formwork structure for high-rise roof concrete eaves of the present invention utilizes wall attachments and triangular brackets to form a rigid combination, effectively resisting lateral pressure and overturning moment during concrete pouring, and having strong structural stability.

[0086] The hanging formwork structure for high-rise roof concrete overhangs of the present invention can flexibly adjust the sizes of the bottom formwork and the pull rods to meet different overhang lengths and modeling requirements.

[0087] The bottom formwork of the hanging formwork structure for the concrete overhanging eaves of a high-rise roof of the present invention adopts a steel formwork, which has high rigidity and small deformation, ensures the molding accuracy and surface flatness of the overhanging eaves concrete, and has high quality controllability.

[0088] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A hanging formwork structure for high-rise roof concrete eaves, characterized in that: include: A plurality of brackets, each of which is mounted on a roof panel, wherein a lower portion of each bracket is attached to a parapet at an outer edge of the roof panel, and an upper portion of each bracket extends above the parapet, and the plurality of brackets are spaced apart along the outer edge of the roof panel; A plurality of wall attachments are attached to the outer side of the parapet, the positions of the wall attachments correspond to the positions of the brackets, and the wall attachments are connected to the brackets via tensioning components; A bottom template, the bottom template having a first side and a second side opposite to each other, the first side being mounted on the wall attachment, the upper surface of the bottom template being flush with the top surface of the parapet, the second side being turned up to form an outer template, a length-adjustable inclined rod being connected between the outer template and the upper portion of the bracket; The inner formwork is installed between two adjacent brackets, and a pouring space for pouring concrete eaves is formed between the inner formwork and the top surface of the parapet, the bottom formwork and the outer formwork.

2. The hanging formwork structure for high-rise roof concrete eaves according to claim 1, characterized in that: The bracket comprises: A column rests against the inner side of the parapet, the wall attachment is connected to the column via a tension assembly, the inclined tie rod is connected between the upper portion of the column and the outer formwork, and the inner formwork is connected between the columns of two adjacent brackets; A ground beam is installed on the roof panel, and one end of the ground beam is connected to the lower part of the column; The diagonal brace is connected between the column and the other end of the ground beam.

3. The hanging formwork structure for high-rise roof concrete eaves according to claim 2, characterized in that: The support further includes a connecting beam connected to the ground beams of the plurality of supports.

4. The hanging formwork structure for high-rise roof concrete eaves according to claim 2, characterized in that: The tensioning assembly comprises: A through-wall screw is inserted into the parapet, the columns and the wall attachments are respectively provided with through-holes, and both ends of the through-wall screw are respectively inserted into the through-holes of the columns and the wall attachments; The screw-fitting parts are screwed on both ends of the wall-penetrating screw rod, and the screw-fitting parts at both ends of the wall-penetrating screw rod are respectively pressed against the opposite sides of the column and the wall-attached part.

5. The hanging formwork structure for high-rise roof concrete eaves according to claim 4, characterized in that: The wall-penetrating screw is a water-stop screw, and a water-stop plate in the middle of the water-stop screw is embedded in the parapet.

6. The hanging formwork structure for high-rise roof concrete eaves according to claim 2, characterized in that: The two ends of the inclined tie rod are hinged to the upper part of the column and the outer template respectively.

7. The hanging formwork structure for high-rise roof concrete eaves according to claim 6, characterized in that: The inclined tie rod comprises: Two coaxially arranged threaded rods, the opposite ends of the two threaded rods being hingedly connected to the upper portion of the column and the outer template respectively; A straight threaded sleeve, wherein the opposite ends of the two threaded rods are respectively screwed into the two ends of the straight threaded sleeve.

8. The hanging formwork structure for high-rise roof concrete eaves according to claim 1, characterized in that: The bottom of the bottom template is formed with an inserting rib, the top of the wall attachment is formed with a socket groove, and the inserting rib is inserted in the socket groove.

9. A construction method for a hanging formwork structure for a high-rise roof concrete eave according to any one of claims 1 to 8, characterized in that: The following steps are involved: Installing a plurality of brackets on the roof panel so that the lower portion of the brackets is in contact with the parapet at the outer edge of the roof panel, the upper portion of the brackets extends above the parapet, and the plurality of brackets are spaced apart along the outer edge of the roof panel; attaching a plurality of wall attachments to the outer side of the parapet so that the positions of the wall attachments correspond to the positions of the brackets; Connecting the wall attachment to the bracket via a tensioning assembly; Mounting a first side of a bottom template on the wall attachment member so that an upper surface of the bottom template is flush with a top surface of the parapet; Connecting the diagonal tie rod between the outer formwork on the second side of the bottom formwork and the upper portion of the bracket; An inner formwork is installed between two adjacent brackets, so that a pouring space for pouring concrete eaves is formed between the inner formwork and the top surface of the parapet, the bottom formwork and the outer formwork.

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