Supporting device for large-inclination slope of fair-faced concrete and construction method thereof

Abstract

This invention discloses a support device and its construction method for a steeply sloping surface of fair-faced concrete. The device includes: an original formwork for pouring fair-faced concrete, installed on the outer side of the steeply sloping surface; multiple supports, each support including an inclined base plate, the multiple inclined base plates being fixed to the outer side of the original formwork, the upper end of each inclined base plate being rotatably connected to a support plate, and an electric leveling mechanism installed between the support plate and the inclined base plate to support the support plate and ensure its horizontal orientation; a frame, with columns erected on the support plate; and diagonal braces, diagonally supporting the columns and the ground, with stress sensors installed between the lower end of each diagonal brace and the ground. This invention solves the problem of damage to the fair-faced concrete finish caused by traditional methods of erecting support frames on steeply sloping surfaces of fair-faced concrete.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a support device and its construction method for a large-angle inclined surface of fair-faced concrete. Background Technology

[0002] The finished surface of fair-faced concrete is the decorative surface. Embedded components, openings, or subsequent repairs are strictly prohibited on the finished surface of fair-faced concrete. The erection of inclined plate support frames at large angles has long faced technical bottlenecks.

[0003] When erecting a support frame on a steeply inclined surface of a concrete structure, the traditional method of erecting the support frame generally involves pre-embedding connectors in the concrete structure. After the concrete strength of the concrete structure reaches the required level, the support frame is erected using these pre-embedded connectors.

[0004] The finished surface of fair-faced concrete is the decorative surface. Embedded components, openings, or subsequent repairs are strictly prohibited on the finished surface of fair-faced concrete. If it is necessary to erect a support frame on a steeply sloping surface of fair-faced concrete, the traditional method of erecting a support frame on a slope has the following drawbacks: Embedded components disrupt the integrity of the fair-faced finish, resulting in an unsatisfactory appearance. Large pre-embedded positioning deviations make it difficult to control support accuracy, which can easily lead to slippage and instability. Embedded parts cannot be reused, resulting in high material waste and high costs; The process is complex, involves many overlapping operations, has a long construction period, and carries high safety risks. Without stress monitoring methods, the safety of the frame cannot be controlled in real time. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, a support device and its construction method for fair-faced concrete with a large sloping angle are provided to solve the problem that the traditional process of erecting support frames on sloping surfaces of fair-faced concrete with a large sloping angle damages the fair-faced finish.

[0006] To achieve the above objectives, a support device for a steeply inclined surface of fair-faced concrete is provided, comprising: The original formwork used for pouring fair-faced concrete is installed on the outside of the steeply inclined surface of the fair-faced concrete. Multiple supports, each support including an inclined base plate, the multiple inclined base plates being fixed to the outside of the original template, the upper end of the inclined base plate being rotatably connected to a support plate, and an electric leveling mechanism for supporting the support plate so that the support plate is arranged in a horizontal direction is installed between the support plate and the inclined base plate. The frame structure has its uprights erected on the supporting plate. A diagonal brace is diagonally supported between the column and the ground, and a stress sensor is installed between the lower end of the diagonal brace and the ground.

[0007] Furthermore, the electric leveling mechanism includes an electric support member with adjustable length. The electric support member is rotatably installed in the middle of the inclined base plate. The angle between the electric support member and the inclined base plate is less than 90°. The lower end of the inclined base plate is provided with a height-adjustable pad, which is perpendicular to the surface direction of the inclined base plate.

[0008] Furthermore, a groove is formed on the inner side of the support plate, and a sliding seat is slidably disposed in the groove, with the electric support member hinged to the sliding seat.

[0009] Furthermore, an adjustable-length electric drive unit is hinged between the electric support member and the upper end of the inclined base plate.

[0010] Furthermore, the inclined substrate is equipped with anchoring nails, which are anchored in the original template.

[0011] Furthermore, the anchor pin has barbs formed on its exterior.

[0012] Furthermore, the ground is provided with supports, and the lower end of the diagonal brace is supported on the supports.

[0013] This invention provides a construction method for a support device on a steeply inclined surface of fair-faced concrete, comprising the following steps: After the fair-faced concrete is poured, the original formwork used for pouring the fair-faced concrete is retained; The inclined base plates of the multiple supports are fixed to the outside of the original template; The support plate of the support is supported by an electric leveling mechanism, so that the support plate is set in the horizontal direction; Erect the frame and place the uprights of the frame on the supporting plate; The diagonal bracing is diagonally supported by the column and the ground, and a stress sensor is installed between the lower end of the diagonal bracing and the ground to monitor the stress change of the diagonal bracing and prevent the frame from sliding down.

[0014] The beneficial effects of this invention are as follows: the support device for a large-angle inclined surface of fair-faced concrete retains the original formwork after the fair-faced concrete is poured and anchors the support to the outside of the original formwork, completely avoiding any pre-embedded connectors or drilling operations on the fair-faced concrete structure itself. The inclined base plate is fixed only to the formwork layer by anchoring nails and does not penetrate to the concrete forming surface, fundamentally eliminating the damage to the finish caused by pre-embedded components or later repairs, perfectly ensuring the integrity and aesthetic effect of the fair-faced concrete forming surface as a decorative surface, and meeting the "one-time excellent" finish quality requirements of fair-faced concrete. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the support device for a steeply inclined surface of fair-faced concrete according to an embodiment of the present invention.

[0016] Figure 2 for Figure 1 A magnified view of point A in the diagram.

[0017] Figure 3 This is a schematic diagram of the support structure according to an embodiment of the present invention.

[0018] Figure label: Original template 1; Support 2, inclined plate 21, anchor nail 211, support plate 22, electric leveling mechanism 23, electric top support 231, pad 232, sliding seat 233, electric drive component 234; Frame 3, uprights 31; 4 diagonal braces; 41 supports; 5. Fair-faced concrete. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Reference Figures 1 to 3 As shown, the present invention provides a support device for a large-angle inclined surface of fair-faced concrete, comprising: original template 1, support 2, frame 3, and diagonal brace 4.

[0022] In this embodiment, the original formwork 1 is installed on the outer side of the steeply inclined surface of the fair-faced concrete 5. The original formwork 1 is used for pouring the fair-faced concrete 5. During the pouring of the fair-faced concrete, the original formwork 1 is erected on the outer side of the pouring space of the fair-faced concrete. After the fair-faced concrete is poured, the formwork is not removed, so that the original formwork serves as the foundation of the support device for the steeply inclined surface of the fair-faced concrete according to the present invention. The fair-faced concrete is a slab with an inclined surface.

[0023] There are multiple supports 2. These supports are arranged in a matrix on the outside of the original formwork. The supports are spaced apart along the slope direction of the original formwork.

[0024] The support 2 includes an inclined base plate 21, a support plate 22, and an electric leveling mechanism 23.

[0025] For details, please refer to Figure 2 and Figure 3 As shown, the inclined plate 21 is fixed to the outside of the original template 1.

[0026] In this embodiment, the inclined substrate 21 is equipped with anchor pins 211. The anchor pins 211 are anchored in the original template 1.

[0027] As a preferred embodiment, the anchor pin 211 has barbs formed on its outer surface.

[0028] A support plate 22 is rotatably connected to the upper end of the inclined base plate 21. The upper end of the inclined base plate is hinged to one end of the support plate via a hinge shaft. An electrically operated leveling mechanism 23 is installed between the support plate 22 and the inclined base plate 21. The electrically operated leveling mechanism 23 supports the support plate 22 so that the support plate 22 is positioned horizontally.

[0029] The frame 3 is a scaffold. The uprights 31 of the frame 3 are erected on the support plate 22. The multiple uprights 31 of the frame 3 are erected one-to-one on the support plate of multiple supports.

[0030] The diagonal brace 4 is diagonally supported by the column 31 and the ground. A stress sensor is installed between the lower end of the diagonal brace 4 and the ground. The stress sensor monitors the stress changes of the diagonal brace, which serves as the basis for judging whether the frame is slipping.

[0031] In some embodiments, a stress sensor is installed between the support plate and the column to monitor stress changes in the frame.

[0032] The electric leveling mechanism 23 includes an electric support 231 and a pad 232.

[0033] The length of the electrically operated support member 231 is adjustable. The electrically operated support member 231 is rotatably mounted in the middle of the inclined base plate 21. The angle between the electrically operated support member 231 and the inclined base plate 21 is less than 90°. A pad 232 is provided at the lower end of the inclined base plate 21. The height of the pad 232 is adjustable. The pad 232 is perpendicular to the surface direction of the inclined base plate 21.

[0034] In this embodiment, the pad, the support plate, the inclined plate, and the electric support component form a stable triangular structure to provide a stable foundation for the frame.

[0035] In this embodiment, the support plate is elongated. The support plate has two opposite ends along its length. One end of the support plate is hinged to the upper end of the inclined base plate via a hinge shaft. A groove is formed on the inner side of the support plate 22. The groove is provided along the length of the support plate. A sliding seat 233 is slidably disposed in the groove. An electric support member 231 is hinged to the sliding seat 233.

[0036] The electric jacking component is the first hydraulic cylinder. The angle between the support plate and the inclined plate is adjusted by adjusting the length of the electric jacking component.

[0037] In a preferred embodiment, an adjustable-length electric drive unit 234 is hinged between the electric support member 231 and the upper end of the inclined plate 21. Further, the electric drive unit is a second hydraulic cylinder. The second hydraulic cylinder has a fixed end and a telescopic end. The fixed end of the second hydraulic cylinder is hinged to the upper end of the inclined plate. The fixed end of the second hydraulic cylinder is located between the hinge shaft of the electric support member and one end of the supporting plate. The telescopic end of the second hydraulic cylinder is hinged to the middle of the first hydraulic cylinder.

[0038] The pad consists of multiple base blocks stacked together in series. The number of base blocks is determined based on the vertical distance from the other end of the support plate to the lower end of the inclined substrate.

[0039] In a preferred embodiment, a support 41 is provided on the ground. The lower end of the diagonal brace 4 is supported on the support 41.

[0040] This invention provides a construction method for a support device on a steeply inclined surface of fair-faced concrete, comprising the following steps: S1. After the fair-faced concrete 5 is poured, retain the original formwork 1 from which the fair-faced concrete 5 was poured.

[0041] After the fair-faced concrete 5 is poured and reaches the predetermined strength, the original formwork 1 used for pouring the fair-faced concrete is not removed. Instead, the original formwork 1 is used as the foundation for the subsequent support device installation. The original formwork is made of plywood and is required to be of high quality, flat, and free from deformation.

[0042] Before retaining the original template, the template surface should be cleaned to remove laitance and debris, ensuring that the outer surface of the template is clean and dry to facilitate the anchoring installation of the inclined base plate 21 of support 2. At the same time, the firmness of the original template 1 should be checked to ensure that it does not loosen or shift during subsequent construction.

[0043] S2. Fix the inclined base plate 21 of the multiple supports 2 to the outside of the original template 1.

[0044] The inclined base plates 21 of multiple supports 2 are fixed to the outside of the original template 1. Specifically, this includes the following sub-steps: S2.1 Layout and Positioning: According to the design layout of the frame 3, the installation position lines of the supports 2 are marked on the outer side of the original template 1. Multiple supports 2 are arranged in a matrix, spaced apart along the slope direction of the original template 1, with the spacing determined according to the arrangement spacing of the frame columns 31.

[0045] S2.2 Installation of the inclined base plate: The inclined base plate 21 is attached to the outer side of the original template 1 and anchored to the original template 1 using anchoring nails 211 installed on the inclined base plate 21. The anchoring nails 211 have barbs on their outer surface to enhance the anchoring force and prevent the inclined base plate 21 from being pulled out of the original template 1 under subsequent construction loads. The anchoring depth of the anchoring nails 211 should meet the pull-out bearing capacity requirements, and during anchoring, it should be ensured that the surface of the inclined base plate 21 is tightly fitted with the outer side of the original template 1 without gaps.

[0046] S2.3 Mounting pads: Adjustable height pads 232 are mounted on the lower end of the inclined substrate 21. The pads 232 are perpendicular to the surface of the inclined substrate 21. The pads 232 are composed of multiple base blocks stacked in series. The number of base blocks is initially determined according to the subsequent leveling requirements.

[0047] S3. The support plate 22 of the support 2 is supported by the electric leveling mechanism 23, so that the support plate 22 is set in the horizontal direction.

[0048] The support plate 22 of the support 2 is supported by the electric leveling mechanism 23, so that the support plate 22 is set in the horizontal direction. Specifically, this includes the following sub-steps: S3.1 Connecting the support plate: Connect one end of the support plate 22 to the upper end of the inclined plate 21 in a rotatable manner via a hinge shaft.

[0049] S3.2 Installation of the electric jacking component: The adjustable-length electric jacking component 231 is rotatably installed in the middle of the inclined base plate 21. One end of the electric jacking component 231 is hinged to the inclined base plate 21, and the other end is hinged to the sliding seat 233 that slides in the inner groove of the support plate 22. The included angle between the electric jacking component 231 and the inclined base plate 21 is less than 90°.

[0050] S3.3 Installation of the electric drive unit: An adjustable-length electric drive unit 234 is hinged between the electric support unit 231 and the upper end of the inclined plate 21. The fixed end of the electric drive unit 234 is hinged to the upper end of the inclined plate 21 (located between the hinge axis of the electric support unit and one end of the support plate), and the telescopic end is hinged to the middle of the electric support unit 231.

[0051] S3.4, Start Leveling: Activate the electric support component 231 and the electric drive component 234. By adjusting the length of the electric support component 231 and the extension / retraction of the electric drive component 234, drive the support plate 22 to rotate around its upper hinge axis. Place a level on the support plate 22 to monitor its levelness in real time until the support plate 22 is set horizontally. The height of the pad 232 is adjusted accordingly, so that the top of the pad 232 just abuts against the lower side of the other end of the support plate 22. At this time, a stable triangular support structure is formed between the pad 232, the support plate 22, the inclined plate 21, and the electric support component 231.

[0052] S3.5 Leveling in sequence: Following the above method, level all the support plates 22 of the supports 2 one by one, and use one of the support plates 22 as the reference plate to level the remaining support plates 22 relative to the reference plate, so as to ensure that all support plates 22 are set in the horizontal direction.

[0053] S4. Erect the frame 3 and place the uprights 31 of the frame 3 on the supporting plate 22.

[0054] Erect the frame 3 and vertically position the uprights 31 of the frame 3 on the supporting plate 22. This includes the following sub-steps: S4.1 Frame Design: Based on the construction load requirements, determine the parameters such as the spacing between uprights and the step distance of horizontal bars for frame 3. The spacing between uprights is generally controlled within 1.2m, and the step distance of horizontal bars is controlled at around 1.5m.

[0055] S4.2 Install the uprights: Erect the multiple uprights 31 of the frame 3 one by one on the leveled support plates 22 of the multiple supports 2. Stress sensors can be installed between the uprights 31 and the support plates 22 to monitor stress changes in the frame.

[0056] S4.3 Erection of the scaffolding: Following standard scaffolding erection procedures, install horizontal tie rods (including ground bracing), scissor braces, and other members in sequence to form a complete scaffolding structure. The scaffolding should be erected from bottom to top, with uprights preceding horizontal members, ensuring that all members are securely connected and the overall structure is stable.

[0057] S4.4 Frame Inspection: After the frame is erected, a comprehensive inspection should be carried out on the verticality of the frame, the quality of the node connections, the spacing of the members, etc. Only after confirming that it meets the design requirements can the next step of construction be carried out.

[0058] S5. The diagonal brace 4 is diagonally supported on the column 31 and the ground, and a stress sensor is installed between the lower end of the diagonal brace 4 and the ground to monitor the stress change of the diagonal brace 4 and prevent the frame 3 from sliding down.

[0059] The diagonal brace 4 is obliquely supported by the column 31 and the ground, and a stress sensor is installed between the lower end of the diagonal brace 4 and the ground to monitor stress changes in the diagonal brace 4 and prevent the frame 3 from sliding down. Specifically, this includes the following sub-steps: S5.1 Setting up supports: Supports 41 are set up at the position corresponding to the lower end of the diagonal brace 4 on the ground. Supports 41 can be made of concrete or precast components and should have sufficient bearing capacity and stability.

[0060] S5.2 Installation of stress sensors: Install stress sensors between the lower end of the diagonal brace 4 and the support 41 (or the ground). The stress sensors should be installed along the axial direction of the diagonal brace 4 to ensure that the load transfer path is consistent with the sensor detection direction. The sensors should be calibrated before installation and connected to a stress testing instrument for testing and verification after installation.

[0061] S5.3 Installation of diagonal bracing: The upper end of the diagonal bracing 4 is supported on the upright 31 of the frame 3, and the lower end is supported on the support 41 through a stress sensor. The inclination angle of the diagonal bracing 4 should be calculated and determined to ensure that it can effectively resist the downward force of the frame along the inclined plane.

[0062] S5.4 Connecting the Monitoring System: Connect the stress sensors to the data acquisition system to build a structural stress monitoring network. The data acquisition system can collect stress data of the diagonal brace 4 in real time and transmit the monitoring data to the construction management platform via wireless transmission technology.

[0063] S5.5 Setting Early Warning Thresholds: Based on the design load of the frame and the bearing capacity of the diagonal brace 4, a stress early warning threshold is set. When the monitored stress value exceeds the early warning threshold, the system automatically alarms, prompting on-site personnel to promptly investigate potential hazards and take reinforcement measures.

[0064] S5.6 Continuous monitoring during construction: During the use of the scaffold, data is continuously collected and monitored from stress sensors to keep track of the stress state of the diagonal brace 4 in real time and ensure the safety of the scaffold.

[0065] The support device for steeply inclined surfaces of fair-faced concrete of this invention completely avoids the need for pre-embedding any connectors or drilling operations on the fair-faced concrete structure by retaining the original formwork after the fair-faced concrete is poured and anchoring the support to the outside of the original formwork. The inclined base plate is fixed only to the formwork layer by anchoring nails and does not penetrate to the concrete forming surface, fundamentally eliminating the damage to the finish caused by pre-embedded components and subsequent repairs. This perfectly ensures the integrity and aesthetic effect of the fair-faced concrete forming surface as a decorative surface, meeting the "one-time high-quality" finishing requirements of fair-faced concrete.

[0066] The support device for the large-angle inclined surface of fair-faced concrete of the present invention adopts an electric leveling mechanism (electric jacking component in conjunction with electric drive component). Combined with the design of the inner sliding groove and sliding seat of the support plate, the support plate can be precisely and smoothly adjusted in angle, ensuring that each support plate is precisely on the same horizontal plane, providing a high-precision vertical installation benchmark for the frame column, and effectively overcoming the problem of difficult support accuracy control caused by large pre-embedded positioning deviation on the inclined surface in traditional processes.

[0067] After the support of the support device for the steep slope of fair-faced concrete of the present invention is leveled, a stable triangular force structure is formed between the pad block, the support plate, the inclined plate and the electric jacking component. With the strong pull-out anchoring force provided by the external barbs of the anchoring nail, it can effectively resist the downward component force of the frame along the slope direction and the construction dynamic load, which greatly enhances the overall rigidity and anti-overturning and anti-slipping ability of the support device.

[0068] The support device of this invention for the inclined surface of fair-faced concrete with a large slope is fixed to the outside of the original formwork by anchor nails, rather than being pre-embedded inside the concrete structure. After the frame is used, the support can be completely disassembled and recycled from the original formwork. After inspection and maintenance, it can be reused in subsequent similar projects, realizing the recycling of high-value components. Compared with the traditional process of one-time investment and non-removable pre-embedded parts, this invention significantly reduces steel waste and material procurement costs, resulting in significant economic benefits.

[0069] The support device for steeply inclined surfaces of fair-faced concrete of this invention incorporates stress sensors installed between the lower ends of the diagonal braces and the ground, and between the supporting plate and the columns, thus establishing a real-time dynamic monitoring network for the stress state of the scaffold. Throughout the construction process, management personnel can continuously monitor stress changes in the diagonal braces and columns through the data acquisition system and set early warning thresholds. When monitored values ​​exceed limits, the system automatically alarms, providing timely warnings of scaffold slippage or instability. This overcomes the shortcomings of traditional erection methods, which lack quantitative monitoring methods and rely on experience-based safety judgments, significantly improving construction safety in high-risk conditions such as deep foundation pits and steep inclines.

[0070] The support device for steeply sloping fair-faced concrete surfaces of this invention utilizes the existing formwork retained after the concrete pouring as the support foundation. This eliminates the need for precise positioning of embedded parts, formwork perforation, and subsequent hole repair, greatly simplifying the construction process. Simultaneously, the use of an electric leveling mechanism replaces manual coarse adjustment, resulting in faster and more accurate leveling, significantly reducing manpower and leveling time. This effectively shortens the erection period of the support frame on the slope, creating favorable conditions for the overall project progress.

[0071] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A support device for a steeply inclined surface of fair-faced concrete, characterized in that, include: The original formwork used for pouring fair-faced concrete is installed on the outside of the steeply inclined surface of the fair-faced concrete. Multiple supports, each support including an inclined base plate, the multiple inclined base plates being fixed to the outside of the original template, the upper end of the inclined base plate being rotatably connected to a support plate, and an electric leveling mechanism for supporting the support plate so that the support plate is arranged in a horizontal direction is installed between the support plate and the inclined base plate. The frame structure has its uprights erected on the supporting plate. A diagonal brace is diagonally supported between the column and the ground, and a stress sensor is installed between the lower end of the diagonal brace and the ground.

2. The support device for a steeply inclined surface of fair-faced concrete according to claim 1, characterized in that, The electric leveling mechanism includes an electric support member with adjustable length. The electric support member is rotatably installed in the middle of the inclined base plate. The angle between the electric support member and the inclined base plate is less than 90°. The lower end of the inclined base plate is provided with a height-adjustable pad. The pad is arranged perpendicular to the surface direction of the inclined base plate.

3. The support device for a steeply inclined surface of fair-faced concrete according to claim 2, characterized in that, A groove is formed on the inner side of the support plate, and a sliding seat is slidably disposed in the groove. The electric support member is hinged to the sliding seat.

4. The support device for a steeply inclined surface of fair-faced concrete according to claim 3, characterized in that, The electric support component is hinged to the upper end of the inclined base plate by an adjustable electric drive component.

5. The support device for a steeply inclined surface of fair-faced concrete according to claim 1, characterized in that, The inclined base plate is equipped with anchoring nails, which are anchored in the original template.

6. The support device for a steeply inclined surface of fair-faced concrete according to claim 5, characterized in that, The anchor bolt has barbs formed on its exterior.

7. The support device for a steeply inclined surface of fair-faced concrete according to claim 1, characterized in that, The ground is provided with a support, and the lower end of the diagonal brace is supported on the support.

8. A construction method for a support device for a steeply inclined surface of fair-faced concrete as described in any one of claims 1 to 7, characterized in that, Includes the following steps: After the fair-faced concrete is poured, the original formwork used for pouring the fair-faced concrete is retained; The inclined base plates of the multiple supports are fixed to the outside of the original template; The support plate of the support is supported by an electric leveling mechanism, so that the support plate is set in the horizontal direction; Erect the frame and place the uprights of the frame on the supporting plate; The diagonal bracing is diagonally supported by the column and the ground, and a stress sensor is installed between the lower end of the diagonal bracing and the ground to monitor the stress change of the diagonal bracing and prevent the frame from sliding down.

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