Construction method of super high-rise building outer facade special-shaped gradient type climbing frame

Abstract

The present application relates to the technical field of building facade climbing frame construction, and specifically discloses a super high-rise facade special-shaped gradual change type climbing frame construction method, which comprises the following steps: 1, scheme design, scheme design is carried out on super high-rise facade protection; 2, reservation and pre-embedding of the external pushing type wall-attached support, in the structural construction stage, the wall-attached embedded parts of the climbing frame are synchronously embedded when the beam and slab steel bars are bound, and after the concealed acceptance, the concrete is synchronously poured with the floor slab; 3, climbing frame installation and system debugging; 4, climbing frame external pushing and lifting; 5, after the completion of construction, the climbing frame is removed, the horizontal external pushing power source of the climbing frame is a hydraulic oil cylinder, the extension and retraction of the piston rod of the hydraulic oil cylinder synchronously drives the horizontal external pushing of the inner tube of the telescopic hanging seat, so that the frame body is externally pushed as a whole in units, and the problems of the conventional climbing frame, such as being unable to climb to the top when encountering an externally expanded structure, needing secondary disassembly and assembly in the air, and great safety risks and long construction period are avoided.

Description

Technical Field

[0001] This invention relates to the field of building facade climbing formwork construction technology, and specifically discloses a construction method for a super high-rise facade irregular gradient climbing formwork. Background Technology

[0002] Currently, the facades of many super high-rise buildings in China, especially public buildings, are irregularly shaped, including both outward-expanding and inward-recessing structures. For super high-rise buildings with outward-expanding structures, there are significant safety hazards during construction, and the construction is difficult. There are generally two types of facade protection methods for this type of building: one is to use cantilevered scaffolding, which has a long construction period, high cost, and many safety hazards; the other is to use conventional climbing scaffolding, which involves secondary assembly when encountering irregular structural layers. Although the construction period is shorter, it also has the risks of high cost and many safety hazards. Summary of the Invention

[0003] The purpose of this invention is to provide a construction method for a climbing scaffold with irregular and gradual changes in the facade of a super high-rise building, in order to solve the technical problems of difficult construction, long construction period, and many safety hazards in the protection construction of irregular facade structures of super high-rise buildings in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A construction method for a super high-rise building with an irregularly shaped, gradually changing climbing formwork facade includes the following steps: Step 1, Scheme Design: Design a scheme for the protection of the super high-rise building's facade; Step 2, Pre-installation of external wall-mounted supports: During the structural construction phase, the wall-mounted supports of the climbing formwork are installed simultaneously when the beam and slab reinforcement is tied. After the concealed acceptance, the concrete is poured simultaneously with the floor slab. Step 3, Climbing scaffold installation and system debugging: a. Define the outer layer of the structure as layer N. Above the outer layer of the structure, the layers are successively N+1, N+2, and N+3. Below the outer layer of the structure, the layers are successively N-1, N-2, N-3, N-4, and N-5. When construction reaches layer N-5, install temporary tie-in embedded parts on the floor slab of layer N-5. When construction reaches layer N-4, install floor support embedded parts and temporary tie-in embedded parts on the floor slab of layer N-4. After the concrete of layer N-4 reaches the design strength, start installing telescopic brackets on the floor support embedded parts of layer N-4. Organize materials to start assembling and installing the first section of the climbing formwork layer by layer, and make temporary ties from layer N-5. b. When construction reaches the N-3 floor, install the floor support embedded parts and temporary tie embedded parts on the N-3 floor slab. After the N-3 floor concrete reaches the design strength, start installing the telescopic brackets on the floor support embedded parts of the N-3 floor, assemble and install the second section of the climbing formwork, and make temporary ties from the N-4 floor. c. When construction reaches the N-2 floor, install the floor support embedded parts and temporary tie embedded parts on the N-2 floor slab. After the N-2 floor concrete reaches the design strength, start installing the telescopic brackets on the floor support embedded parts of the N-2 floor, assemble and install the third section of the climbing formwork, and make temporary ties from the N-3 floor. d. After the entire climbing frame is installed, the machine position is debugged to ensure that all systems are operating normally before the climbing frame is pushed outward and lifted; Step 4, pushing and lifting the climbing scaffold: a. Define the outer layer of the structure as N layers, with layers N+1, N+2, and N+3 above the outer layer, and layers N-1, N-2, N-3, N-4, and N-5 below the outer layer; b. Elevate the scaffolding to the N-2 floor, and proceed to the N-2 floor wall and N-1 floor slab for construction. Embed hanging brackets and embedded parts are pre-installed in the N-1 floor slab. After the construction of the cN-1 floor slab is completed, the telescopic bracket is pushed out horizontally. The reaction bracket is installed on the N-1 floor. The cantilevered tripod is installed on the climbing frame and C-shaped steel is laid. The cantilevered tripod is removed before each climbing frame ascent and installed after the climbing frame ascent. d. Elevate the climbing scaffold to the N-1 floor, set up temporary ties between the climbing scaffold and the N-1 floor slab, and proceed to construct the walls of the N-1 floor and the N-1 floor slab. Embed hanging brackets and embedded parts in the N-1 floor slab. After the construction of the Nth floor slab is completed, the hanging brackets are installed on the N+1 floor. After the temporary tie is removed, the climbing frame enters the N+1 floor for construction and the hanging bracket embedded parts are pre-embedded. The cantilever slab is erected on the Nth floor for top support. f. After the N+1 floor slab is completed, the formwork is removed. The N+2 floor slab is constructed and the hanging brackets are pre-embedded. The cantilever slab is erected on the N+1 floor slab for top support. After the N+2 floor slab construction is completed, the formwork is removed, and the climbing scaffold is raised. h. After the climbing scaffold is in place, the N+3 floor slab is constructed and the hanging brackets are pre-embedded. i. Install cantilever slab top supports on the N+2 floor slab, and remove all cantilever slab top supports after the concrete strength reaches the design strength of the scheme; Step 5: After construction is completed, the climbing scaffold is dismantled.

[0005] Furthermore, hydraulic cylinders are installed on the first and third layers below the N layer. The piston rods of the hydraulic cylinders are connected to the inner tubes of the telescopic brackets. The hydraulic cylinders are connected in series with the control box via signal lines. The extension and retraction of the piston rods of the hydraulic cylinders synchronously drive the inner tubes of the telescopic brackets to push outward horizontally, thereby driving the entire frame unit of the climbing frame to push outward as a whole.

[0006] Furthermore, the scheme design in step 1 includes the type of climbing frame, the type of embedded parts, and the design of the machine location.

[0007] Furthermore, in step 2, after the concrete is poured, the position of the wall-mounted embedded parts of the climbing scaffold should be checked in a timely manner, and reinforcement measures should be taken in time for the wall-mounted embedded parts of the climbing scaffold that are significantly misaligned.

[0008] Furthermore, in step 3, one end of the temporary tie on layer N-5 is fixed to the temporary tie embedded part on layer N-5, and the other end is fixed to the climbing frame. The end of the temporary tie on layer N-5 that connects to the climbing frame is higher than the end that connects to the temporary tie embedded part on layer N-5.

[0009] Furthermore, in step 3, one end of the temporary tie on layer N-4 is fixed to the temporary tie embedded part on layer N-4, and the other end is fixed to the climbing frame. The end of the temporary tie on layer N-4 that connects to the climbing frame is higher than the end that connects to the temporary tie embedded part on layer N-4.

[0010] Furthermore, in step 3, one end of the temporary tie on layer N-3 is fixed to the temporary tie embedded part on layer N-3, and the other end is fixed to the climbing frame. The end of the temporary tie on layer N-3 that connects to the climbing frame is higher than the end that connects to the temporary tie embedded part on layer N-3.

[0011] Furthermore, in step 4, the two ends of the temporary tie on the N-1 floor are fixed to the climbing scaffold and the N-1 floor slab, respectively, and the end of the temporary tie on the N-1 floor that connects to the climbing scaffold is higher than the end that connects to the N-1 floor slab.

[0012] Furthermore, in step 4, the two ends of the cantilever slab top support erected on the Nth floor abut against the Nth floor and the N+1th floor respectively, the two ends of the cantilever slab top support erected on the N+1th floor abut against the N+2th floor respectively, and the two ends of the cantilever slab top support erected on the N+2th floor abut against the N+3th floor respectively.

[0013] Compared with the prior art, the present invention has the following features and beneficial effects: This invention employs an outward-pushing climbing scaffolding construction method for the protection of irregularly shaped facades of super high-rise buildings. It solves the technical problems of conventional climbing scaffolding, which cannot reach the top in one go when encountering outward-expanding structures, requires secondary disassembly and assembly at high altitudes, poses significant safety risks, and has a long construction cycle. The outward-pushing climbing scaffolding can reach the top in one go, with lower safety risks, shorter cycle, and lower cost. At the same time, compared with cantilever scaffolding, the outward-pushing climbing scaffolding requires less labor and materials, is easier to construct, and produces a better facade appearance. It has the characteristics of safety and applicability, and has good promotion and practical value. Its widespread application will generate good economic benefits. Attached Figure Description

[0014] Figure 1 This is a flowchart illustrating the construction process of this invention. Figure 2 This is a schematic diagram showing the climbing frame of the present invention located below the outer expansion layer of the structure; Figure 3This is a schematic diagram of the climbing frame of the present invention in an outward-pushed state below the outer expansion layer of the structure; Figure 4 This is a schematic diagram of the climbing frame of the present invention raised to the outer expansion layer of the structure; Figure 5 This is a schematic diagram of the climbing frame of the present invention raised to the N+1 level; Figure 6 This is a schematic diagram of the climbing frame of the present invention raised to the N+2 level; Figure 7 This is a schematic diagram showing the completed construction status of the N+2 layers of this invention; Figure 8 This is a schematic diagram of the climbing frame of the present invention raised to the N+3 level; Figure 9 This is a schematic diagram of the N+2 layer of the present invention with cantilevered slabs providing top support.

[0015] Reference numerals in the attached diagram: 1. Outer structural layer; 2. Telescopic bracket; 3. Reaction bracket; 4. Temporary tie; 5. Climbing scaffold; 6. Cantilever slab top support. Detailed Implementation

[0016] To make the technical means, innovative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0017] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0018] This invention discloses a construction method for a super high-rise building facade with irregularly shaped, gradually changing climbing formwork, such as... Figures 1-9 As shown, it includes the following steps: Step 1, Scheme Design: Design a scheme for the protection of the super high-rise building facade, including the type of climbing formwork, the type of embedded parts, and the design of the equipment location; Step 2, Pre-installation of externally pushed wall-mounted supports: During the structural construction phase, the wall-mounted supports of the climbing formwork are installed simultaneously when the beam and slab reinforcement is tied. After the concealed acceptance, the concrete is poured simultaneously with the floor slab. When installing the wall-mounted supports of the climbing formwork, attention should be paid to accurate positioning and stable fixing. During the concrete pouring process, care should be taken to protect them from displacement. After the concrete is poured, the position of the wall-mounted supports of the climbing formwork should be checked in time. For the wall-mounted supports of the climbing formwork with large displacement, reinforcement measures should be taken in time, including post-embedding or other methods of reinforcement. Step 3, Climbing scaffold installation and system debugging: a. Define the outer layer of the structure as layer N. Above the outer layer of the structure, the layers are successively N+1, N+2, and N+3. Below the outer layer of the structure, the layers are successively N-1, N-2, N-3, N-4, and N-5. When construction reaches layer N-5, install temporary tie-in embedded parts on the floor slab of layer N-5. When construction reaches layer N-4, install floor support embedded parts and temporary tie-in embedded parts on the floor slab of layer N-4. After the concrete of layer N-4 reaches the design strength, start installing telescopic brackets on the floor support embedded parts of layer N-4. Organize materials to start assembling and installing the first section of the climbing formwork layer by layer. Make temporary ties from layer N-5. One end of the temporary tie of layer N-5 is fixed to the temporary tie embedded part on layer N-5, and the other end is fixed to the climbing formwork. The end of the temporary tie of layer N-5 that connects to the climbing formwork is higher than the end that connects to the temporary tie embedded part on layer N-5. b. When construction reaches the N-3 floor, install the floor support embedded parts and temporary tie embedded parts on the N-3 floor slab. After the N-3 floor concrete reaches the design strength, start installing the telescopic brackets on the floor support embedded parts of the N-3 floor, assemble and install the second section of the climbing formwork, and make temporary ties from the N-4 floor. One end of the temporary tie on the N-4 floor is fixed to the temporary tie embedded part on the N-4 floor, and the other end is fixed to the climbing formwork. The end of the temporary tie on the N-4 floor that connects to the climbing formwork is higher than the end that connects to the temporary tie embedded part on the N-4 floor. c. When construction reaches the N-2 floor, install the floor support embedded parts and temporary tie embedded parts on the N-2 floor slab. After the N-2 floor concrete reaches the design strength, start installing the telescopic brackets on the floor support embedded parts of the N-2 floor, assemble and install the third section of the climbing formwork, and make temporary ties from the N-3 floor. One end of the temporary tie on the N-3 floor is fixed to the temporary tie embedded part on the N-3 floor, and the other end is fixed to the climbing formwork. The end of the temporary tie on the N-3 floor that connects to the climbing formwork is higher than the end that connects to the temporary tie embedded part on the N-3 floor. Step 4, scaffolding outward push and lifting: The horizontal outward pushing force comes from the hydraulic cylinder. The extension and retraction of the hydraulic cylinder piston rod drives the inner tube of the telescopic bracket to push horizontally outward, so that the frame unit as a whole is pushed outward. When the scaffolding climbs to the outer expansion layer, the telescopic bracket is used three layers in advance. After the third layer of telescopic bracket is installed, hydraulic cylinders are installed on the first and third layers respectively. The hydraulic cylinders are connected in series with the control box using signal lines to ensure the synchronization of extension and retraction. a. Define the outer layer of the structure as N layers, with layers N+1, N+2, and N+3 above the outer layer, and layers N-1, N-2, N-3, N-4, and N-5 below the outer layer; b. Elevate the scaffolding to the N-2 floor, and proceed to the N-2 floor wall and N-1 floor slab for construction. Embed hanging brackets and embedded parts are pre-installed in the N-1 floor slab. After the construction of the cN-1 floor slab is completed, the telescopic bracket is pushed out horizontally. The reaction bracket is installed on the N-1 floor. The cantilevered tripod is installed on the climbing frame and C-shaped steel is laid. The cantilevered tripod is removed before each climbing frame ascent and installed after the climbing frame ascent. d. Elevate the climbing scaffold to the N-1 floor, set up a temporary tie between the climbing scaffold and the N-1 floor slab, and proceed to the N-1 floor wall and N-1 floor slab for construction. Embed hanging brackets in the N-1 floor slab. The two ends of the temporary tie on the N-1 floor are fixed to the climbing scaffold and the N-1 floor slab respectively. The end of the temporary tie on the N-1 floor that connects to the climbing scaffold is higher than the end that connects to the N-1 floor slab. After the construction of the Nth floor slab is completed, the hanging brackets are installed on the N+1 floor. After the temporary tie is removed, the climbing frame enters the N+1 floor for construction and the hanging bracket embedded parts are pre-embedded. The cantilever slab is erected on the Nth floor for top support. f. After the N+1 floor slab is completed, the formwork is removed. The N+2 floor slab is constructed and the hanging brackets are pre-embedded. The cantilever slab is erected on the N+1 floor slab for top support. After the N+2 floor slab construction is completed, the formwork is removed, and the climbing scaffold is raised. h. After the climbing scaffold is in place, the N+3 floor slab is constructed and the hanging brackets are pre-embedded. i. Install cantilever slab top supports on the N+2 floor slab. All cantilever slab top supports can only be removed after the concrete strength reaches the design strength of the scheme. j. Subsequently, the standard construction process is adopted. After each outward push, the bottom flap of the climbing frame is reinforced and sealed to ensure that the climbing frame system is in a safe and closed state. Each time the climbing frame is pushed outward, the integrity of each machine position is ensured to avoid deformation of the climbing frame due to excessively rapid outward push in some areas. This method is still applicable to structures with large outward expansion dimensions and structures with inward contraction. The cantilever slabs erected on the Nth floor have their top supports abutting between the Nth and N+1th floors respectively. The cantilever slabs erected on the N+1th floor have their top supports abutting between the N+1th and N+2th floors respectively. The cantilever slabs erected on the N+2th floor have their top supports abutting between the N+2th and N+3th floors respectively. Step 5: After construction is completed, the climbing scaffold is dismantled.

[0019] This invention is a construction method using an outward-pushing climbing scaffolding for the irregularly shaped facades of super high-rise buildings. It solves the technical challenges of difficult and high-risk safety issues associated with the protection construction of irregularly shaped facades in existing technologies. The outward-pushing climbing scaffolding construction method is safe, stable, low-cost, and fast, effectively ensuring the on-site construction progress.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method for a super high-rise building facade with irregularly shaped, gradually changing climbing scaffolding, characterized in that, Includes the following steps: Step 1, Scheme Design: Design a scheme for the protection of the super high-rise building's facade; Step 2, Pre-installation of external wall-mounted supports: During the structural construction phase, the wall-mounted supports of the climbing formwork are installed simultaneously when the beam and slab reinforcement is tied. After the concealed acceptance, the concrete is poured simultaneously with the floor slab. Step 3, Climbing scaffold installation and system debugging: a. Define the outer layer of the structure as layer N. Above the outer layer of the structure, the layers are successively N+1, N+2, and N+3. Below the outer layer of the structure, the layers are successively N-1, N-2, N-3, N-4, and N-5. When construction reaches layer N-5, install temporary tie-in embedded parts on the floor slab of layer N-5. When construction reaches layer N-4, install floor support embedded parts and temporary tie-in embedded parts on the floor slab of layer N-4. After the concrete of layer N-4 reaches the design strength, start installing telescopic brackets on the floor support embedded parts of layer N-4. Organize materials to start assembling and installing the first section of the climbing formwork layer by layer, and make temporary ties from layer N-5. b. When construction reaches the N-3 floor, install the floor support embedded parts and temporary tie embedded parts on the N-3 floor slab. After the N-3 floor concrete reaches the design strength, start installing the telescopic brackets on the floor support embedded parts of the N-3 floor, assemble and install the second section of the climbing formwork, and make temporary ties from the N-4 floor. c. When construction reaches the N-2 floor, install the floor support embedded parts and temporary tie embedded parts on the N-2 floor slab. After the N-2 floor concrete reaches the design strength, start installing the telescopic brackets on the floor support embedded parts of the N-2 floor, assemble and install the third section of the climbing formwork, and make temporary ties from the N-3 floor. d. After the entire climbing frame is installed, the machine position is debugged to ensure that all systems are operating normally before the climbing frame is pushed outward and lifted; Step 4, pushing and lifting the climbing scaffold: a. Define the outer layer of the structure as N layers, with layers N+1, N+2, and N+3 above the outer layer, and layers N-1, N-2, N-3, N-4, and N-5 below the outer layer; b. Elevate the scaffolding to the N-2 floor, and proceed to the N-2 floor wall and N-1 floor slab for construction. Embed hanging brackets and embedded parts are pre-installed in the N-1 floor slab. After the construction of the cN-1 floor slab is completed, the telescopic bracket is pushed out horizontally. The reaction bracket is installed on the N-1 floor. The cantilevered tripod is installed on the climbing frame and C-shaped steel is laid. The cantilevered tripod is removed before each climbing frame ascent and installed after the climbing frame ascent. d. Elevate the climbing scaffold to the N-1 floor, set up temporary ties between the climbing scaffold and the N-1 floor slab, and proceed to construct the walls of the N-1 floor and the N-1 floor slab. Embed hanging brackets and embedded parts in the N-1 floor slab. After the construction of the Nth floor slab is completed, the hanging brackets are installed on the N+1 floor. After the temporary tie is removed, the climbing frame enters the N+1 floor for construction and the hanging bracket embedded parts are pre-embedded. The cantilever slab is erected on the Nth floor for top support. f. After the N+1 floor slab is completed, the formwork is removed. The N+2 floor slab is constructed and the hanging brackets are pre-embedded. The cantilever slab is erected on the N+1 floor slab for top support. After the N+2 floor slab construction is completed, the formwork is removed, and the climbing scaffold is raised. h. After the climbing scaffold is in place, the N+3 floor slab is constructed and the hanging brackets are pre-embedded. i. Install cantilever slab top supports on the N+2 floor slab, and remove all cantilever slab top supports after the concrete strength reaches the design strength of the scheme; Step 5: After construction is completed, the climbing scaffold is dismantled.

2. The construction method for a super high-rise building facade with irregularly shaped, gradually changing climbing formwork as described in claim 1, characterized in that, Hydraulic cylinders are installed on the first and third floor slabs below the outer expansion layer of the structure. The piston rod of the hydraulic cylinder is connected to the inner tube of the telescopic bracket. The hydraulic cylinders are connected in series with the control box through signal lines. The extension and retraction of the piston rod of the hydraulic cylinder synchronously drives the inner tube of the telescopic bracket to push outward horizontally, thereby driving the entire frame unit of the climbing scaffold to push outward as a whole.

3. The construction method for a super high-rise building facade with a gradually changing, irregularly shaped climbing scaffolding as described in claim 1, characterized in that, Step 1 includes the design of the climbing frame type, the type of embedded parts, and the machine location design.

4. The construction method for a super high-rise building facade with irregularly shaped, gradually changing climbing formwork as described in claim 1, characterized in that, In step 2, after the concrete is poured, the position of the wall-mounted embedded parts of the climbing scaffold should be checked in time, and reinforcement measures should be taken in time for the wall-mounted embedded parts of the climbing scaffold that are significantly misaligned.

5. The construction method for a super high-rise building facade with a gradually changing, irregularly shaped climbing scaffolding as described in claim 1, characterized in that, In step 3, one end of the temporary tie on layer N-5 is fixed to the temporary tie embedded part on layer N-5, and the other end is fixed to the climbing frame. The end of the temporary tie on layer N-5 that connects to the climbing frame is higher than the end that connects to the temporary tie embedded part on layer N-5.

6. The construction method for a super high-rise building facade with a gradually changing, irregularly shaped climbing scaffolding according to claim 5, characterized in that, In step 3, one end of the temporary tie on layer N-4 is fixed to the temporary tie embedded part on layer N-4, and the other end is fixed to the climbing frame. The end of the temporary tie on layer N-4 that connects to the climbing frame is higher than the end that connects to the temporary tie embedded part on layer N-4.

7. The construction method for a super high-rise building facade with a gradually changing, irregularly shaped climbing formwork as described in claim 6, characterized in that, In step 3, one end of the temporary tie on layer N-3 is fixed to the temporary tie embedded part on layer N-3, and the other end is fixed to the climbing frame. The end of the temporary tie on layer N-3 that connects to the climbing frame is higher than the end that connects to the temporary tie embedded part on layer N-3.

8. The construction method for a super high-rise building facade with a gradually changing, irregularly shaped climbing scaffolding as described in claim 1, characterized in that, In step 4, the two ends of the temporary tie on the N-1 floor are fixed to the climbing frame and the N-1 floor slab, respectively. The end of the temporary tie on the N-1 floor that connects to the climbing frame is higher than the end that connects to the N-1 floor slab.

9. The construction method for a super high-rise building facade with irregularly shaped, gradually changing climbing formwork according to claim 1, characterized in that, In step 4, the two ends of the cantilever slab top support erected on the Nth floor abut against the Nth floor and the N+1th floor respectively; the two ends of the cantilever slab top support erected on the N+1th floor abut against the N+2th floor respectively; and the two ends of the cantilever slab top support erected on the N+2th floor abut against the N+3th floor respectively.

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