A framework for cantilever construction and a design construction monitoring method thereof
By designing a cantilever construction structure, adopting a high-strength heavy-duty support system and mechanical transmission device, and combining information-based monitoring, the lightweight and efficient construction of fourth-generation building cantilever structures has been achieved, solving the problems of manpower consumption and safety risks in traditional construction methods.
Patent Information
- Application Number
- CN202311395784.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-25
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2043-10-25
AI Technical Summary
In the construction of fourth-generation cantilever buildings, there is a lack of innovation in construction methods. Traditional support methods consume a lot of manpower and pose safety risks, resulting in low construction efficiency.
A cantilever construction structure is designed, employing a high-strength, heavy-duty support system with integral connection. The support is horizontally moved using a mechanical transmission device, and safety is monitored through information-based monitoring methods. The entire structure is hoisted and poured in one go.
It achieves lightweight, stable and efficient construction of cantilever structures, reduces repetitive erection procedures, lowers safety risks, and improves construction efficiency and safety.
Smart Images

Figure CN117536431B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of construction, and more specifically, to a fourth-generation building formwork structure for cantilever construction and its design, construction, and monitoring method. Background Technology
[0002] Fourth-generation green and eco-friendly housing can revitalize cities and improve living environments without increasing land use or construction costs. China's first fourth-generation building is the Chengdu July 1st Urban Forest Garden. Currently, there are few such projects, and construction experience is insufficient. Traditional, piecemeal formwork and scaffolding methods are still used, highlighting the urgent need for innovative construction techniques.
[0003] By designing the overall dimensions of the support system based on the characteristics of the cantilevered parts of the construction project, a high-strength heavy-duty support system is adopted and the entire system is connected to reduce the weight of the support system and the amount of components used, thereby achieving the functions of lightweight, integrity and stability. A mechanical transmission device is used to realize the horizontal translation of the support system. The overall hoisting is used to realize the one-time pouring of the cantilever structure and the repeated turnover of the support system. Information-based monitoring methods are used to realize the safety monitoring of high-risk engineering construction. Summary of the Invention
[0004] In view of the above-mentioned technical problems in related technologies, the present invention proposes a method for monitoring the design and construction of cantilever structures, which can overcome the above-mentioned shortcomings of the existing technology.
[0005] To achieve the above-mentioned technical objectives, the technical solution of the present invention is implemented as follows:
[0006] The first objective of this invention is to provide a structure for cantilever construction, comprising a leveling frame installed on the cantilever structure of each floor of a building, wherein the upper surface of the cantilever steel of the cantilever structure is flush with the upper surface of the leveling frame, the top of the leveling frame is provided with a guide rail, the bottom of the guide rail is parallel to the top surface of the floor slab of the same floor, and the right end of the guide rail is provided with a limiting device; the bottom of the support is provided with a plurality of pulley groups, the pulley groups being located on the guide rail; the right end of the support is provided with a protective frame, and the top of the support is provided with a template, the template being located between the support and the cantilever structure of the upper floor;
[0007] The bracket is provided with a suspension point, which is connected to one end of the power component. The power component can drive the bracket to reciprocate along the guide rail.
[0008] The leveling frame, the support, the protective frame, and the template together constitute the template support module; the guide rail, the limiting device, the pulley block, and the power component together constitute the transmission device.
[0009] The architecture also includes a monitoring system. This monitoring system utilizes mature existing technologies for monitoring high-formwork support in smart construction sites. It includes sensors for tilt angle, displacement, axial pressure, and a management platform. The system can transmit monitoring results, set warning value ranges, and send monitoring information to relevant management personnel based on the warning value level. The monitoring system employs several sensors for tilt angle, displacement, and axial pressure, electrically connected via wired and wireless transmission methods to transmit data signals to the monitoring system's operating platform.
[0010] Furthermore, the power assembly is a chain hoist or an electric hoist.
[0011] Furthermore, the right end of the cantilever structure is provided with a traction point, and the other end of the power component is fixed on the traction point, so that the support can be translated by an external traction device.
[0012] Furthermore, the upper surface of the cantilevered steel section of the cantilever structure on the same layer is flush with the upper surface of the leveling frame.
[0013] Furthermore, the cantilevered steel section has an outward cantilever length greater than 1 / 2 of the width of the template support module, and the cantilevered steel section is provided with several limiting components.
[0014] Furthermore, several wall ties can be installed between the support frame and the wall as needed, preferably two wall ties per floor.
[0015] In a preferred embodiment, several ground anchors can be installed between the leveling frame and the cantilever structure on the same floor.
[0016] The second objective of this invention is to provide a design and construction monitoring method for cantilever structures as described in the first objective, comprising the following steps:
[0017] Step S1 Support Design: Based on the characteristics of the implemented building structure, analyze the parameters of the cantilever section, select the structure of the cantilever structure including the support, the template, the transmission device, and the monitoring system based on the analysis results, design the structure of each structure based on the selection results, and finally verify the stability of each structure.
[0018] Step S2 Specific Construction: According to the design results of the support, install the cantilevered steel at the cantilevered part, design the size of the support and assemble it, hoist the formwork support module and install the transmission device, adjust the position of the support through the transmission device and the guide rail, hoist the formwork support module and the leveling frame, then remove the cantilevered steel and install it to the corresponding upper structure, finally hoist the formwork support module, adjust the formwork and construct the upper structure concrete;
[0019] Step S3 Monitoring and Control: After the support is erected, check the working status of each sensor of the monitoring system and record the initial data of each sensor. During the concrete pouring process of the cantilever section, collect various monitoring data, set early warning thresholds, and send an early warning signal when the early warning threshold is exceeded, and immediately stop the pouring operation. The operation can only be resumed after the inspection is qualified.
[0020] Furthermore, S1 specifically includes the following process:
[0021] S101 Parameter Analysis: Based on the characteristics of the implemented fourth-generation building structure, and taking into account the parameters such as the height of the cantilevered section, the number of cantilevered floors, the length and width of the cantilevered section, the thickness of the cantilevered slab, and the height of the cantilever beam, the key parts, difficulties, loads, and stress conditions are analyzed, and the analysis results are obtained.
[0022] S102 Structural Selection: Based on the analysis results, select the appropriate structure for each component, namely, the bracket, the template, the transmission device, and the monitoring system.
[0023] S103 Structural Design: During the structural design, considering the characteristics of the structure, a protective frame is installed on the outside of the formwork support module, along with wall ties or column clamping structures. If column clamping is not feasible, steel wire rope tying measures can be implemented. A safety net is installed along the vertical direction of the support. For cantilevered sections with settlement structures, a leveling frame is installed, and guide rails are mounted on the leveling frame. A lowering device is installed on the formwork support module, using adjustable support components to adjust the vertical height. Guide rails and pulley blocks are provided. During the support installation process, a monitoring system is also installed, using both mobile phone and computer terminals for monitoring.
[0024] S104 Stability Verification: Based on the form of the cantilever structure and the erection scheme of the support, verify the cantilever anchorage structure and determine the anchor configuration; and based on the structural load of the cantilevered part, configure the selection of the support and verify the stability of the support.
[0025] Furthermore, S2 specifically includes the following process:
[0026] Step S201: Install the cantilevered steel section at the cantilevered part. The end of the cantilevered steel section is leveled with heightening pads to ensure that the height of the end of the cantilevered steel section is the same as that of the cantilevered part. The middle part of the cantilevered steel section is leveled by the leveling frame.
[0027] Step S202: Based on the structural dimensions of the cantilevered portion, design the support 5 required for the cantilevered portion, and install the support and the template on site, ensuring the integrity of the support;
[0028] Step S203: Hoist the template support module, install the transmission device, adjust the elevation of the support and the template, and then pour concrete;
[0029] Step S204: Adjust the bottom support and top support to lower the template as a whole, and slide the bracket to the right along the guide rail through the transmission device;
[0030] Step S205: Hoist the template support module, especially the leveling frame;
[0031] Step S206: Remove the cantilevered steel section, install it on the upper layer of the cantilever structure, and hoist the leveling frame 2;
[0032] Step S207: Finally, hoist the formwork support module to the upper layer, adjust the formwork, and pour concrete for the upper layer.
[0033] Furthermore, the precautions in S2 include: when installing and removing the pre-embedded anchoring components, if the design requires an anchoring scheme that penetrates the floor slab, waterproofing measures must be taken at the anchoring location to ensure no leakage occurs; if the design involves an anchoring scheme within a concrete structure, subsequent anchoring reinforcement should be cut and rust-proofed. If the limiting device is made of steel pipe, structural steel, or welded reinforcing bars, welding should ensure a sufficiently strong connection to prevent deformation of the formwork support module upon contact with the limiting structure. If it is necessary to ensure the stability of the support, the support and the wall can be reinforced with wall ties such as steel pipes.
[0034] Furthermore, S3 specifically includes the following process: after the support is erected, the working status of the sensors is checked and the initial data of each sensor is recorded. During the concrete pouring process of the cantilevered part, various monitoring data are collected, a warning threshold is set, and if the warning threshold is exceeded, a warning signal is sent and the pouring operation is stopped immediately. The operation can only be resumed after the inspection is qualified.
[0035] The beneficial effects of this invention are as follows: This invention integrates key processes and procedures such as scheme design, selection, construction, and monitoring, and innovates construction methods by combining information-based monitoring means to achieve refined and process-oriented management of the entire construction process, guiding the promotion and application of fourth-generation building formwork engineering.
[0036] For the construction of fourth-generation cantilever structures, a holistic design is adopted, encompassing aspects such as support design and selection, formwork system selection, transmission devices, monitoring and control, and construction process. An integrated support system and overall hoisting method are used to solve the problem of repeated disassembly and assembly of the on-site support system and improve construction efficiency.
[0037] This invention solves the problem that in the construction of complex structures, especially fourth-generation buildings, cantilevered terraces are often erected manually using traditional support methods, resulting in repetitive operations and high manpower consumption. By adopting an integrated scaffolding erection method, the number of repetitive erection steps can be effectively reduced, and combined with on-site hoisting equipment, efficiency is improved and safety risks are reduced. Attached Figure Description
[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0039] Figure 1 This is a structural diagram of each layer of the structure used for cantilever construction as described in this invention.
[0040] Figure 2 This is a detailed construction diagram of the structure used for cantilever construction as described in this invention.
[0041] In the diagram: 1. Guide rail; 2. Flat frame; 3. Limiting device; 4. Pulley block; 5. Support; 6. Protective frame; 7. Template; 8. Power component; 9. Traction point; 10. Suspension point; 11. Wall tie; 12. Ground anchor; 13. Wall; 14. Floor slab; 15. Cantilever structure. Detailed Implementation
[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.
[0043] like Figure 1-2 As shown, in order to facilitate understanding of the above technical solutions of the present invention, the following describes the above technical solutions of the present invention in detail through specific usage methods.
[0044] The first objective of this invention is to provide a structure for cantilever construction, comprising a leveling frame 2 installed on a cantilever structure 15 on each floor of a building, wherein the upper surface of the cantilever steel of the cantilever structure 15 is flush with the upper surface of the leveling frame 2, a guide rail 1 is provided at the top of the leveling frame 2, the bottom of the guide rail 1 is parallel to the top surface of the floor slab 14 on the same floor, and a limiting device 3 is provided at the right end of the guide rail 1; a bracket 5 is provided at the bottom with a plurality of pulley groups 4, the pulley groups 4 being located on the guide rail 1; a protective frame 6 is provided at the right end of the bracket 5, and a template 7 is provided at the top of the bracket 5, the template 7 being located between the bracket 5 and the cantilever structure 15 on the upper floor;
[0045] The bracket 5 is provided with a suspension point 10, which is connected to one end of the power component 8. The power component 8 can drive the bracket 5 to reciprocate along the guide rail 1.
[0046] The leveling frame 2, the support 5, the protective frame 6, and the template 7 together constitute the template support module; the guide rail 1, the limiting device 3, the pulley block 4, and the power component 8 together constitute the transmission device.
[0047] The architecture also includes a monitoring system. This monitoring system utilizes mature existing technologies for monitoring high-formwork support in smart construction sites. It includes sensors for tilt angle, displacement, axial pressure, and a management platform. The system can transmit monitoring results, set warning value ranges, and send monitoring information to relevant management personnel based on the warning value level. The monitoring system employs several sensors for tilt angle, displacement, and axial pressure, electrically connected via wired and wireless transmission methods to transmit data signals to the monitoring system's operating platform.
[0048] In a preferred embodiment, the power unit 8 is a chain hoist or an electric hoist.
[0049] In a preferred embodiment, the right end of the cantilever structure 15 is provided with a traction point 9, and the other end of the power component 8 is fixed on the traction point 9, so that the support 5 can be translated by an external traction device.
[0050] In a preferred embodiment, the upper surface of the cantilevered steel of the cantilever structure 15 on the same layer is flush with the upper surface of the leveling frame 2.
[0051] In a preferred embodiment, the cantilevered steel section has an overhang length greater than 1 / 2 of the width of the template support module, and the cantilevered steel section is provided with several limiting components.
[0052] In a preferred embodiment, a number of wall-connecting components 11 can be provided between the bracket 5 and the wall 13 as needed, preferably two wall-connecting components 11 per floor.
[0053] In a preferred embodiment, several ground anchors 12 can be installed between the leveling frame 2 and the cantilever structure 15 on the same floor.
[0054] The second objective of this invention is to provide a design and construction monitoring method for cantilever structures as described in the first objective, comprising the following steps:
[0055] Step S1 Support Design: Based on the characteristics of the fourth-generation building structure being implemented, the parameters of the cantilevered part are analyzed. Based on the analysis results, the various structures of the cantilevered structure 15, including the support 5, the template 7, the transmission device, and the monitoring system, are selected. Based on the selection results, the construction design of each structure is carried out. Finally, the stability calculation of each structure is performed.
[0056] Step S2 Specific Construction: According to the design results of the support 5, install the cantilevered steel at the cantilevered part, design the size of the support 5 and assemble it, hoist the template support module and install the transmission device, adjust the position of the support 5 through the transmission device and the guide rail 1, hoist the template support module and the leveling frame 2, then remove the cantilevered steel and install it to the corresponding upper structure, finally hoist the template support module, adjust the template 7 and construct the upper structure concrete;
[0057] Step S3 Monitoring and Control: After the support 5 is erected, check the working status of each sensor of the monitoring system and record the initial data of each sensor. During the concrete pouring process of the cantilever section, collect various monitoring data, set early warning thresholds, and send an early warning signal when the early warning threshold is exceeded, and immediately stop the pouring operation. The operation can only be resumed after the inspection is qualified.
[0058] In a preferred embodiment, S1 specifically includes the following process
[0059] S101 Parameter Analysis: Based on the structural characteristics of the fourth-generation building, and taking into account the parameters such as the height of the cantilevered section, the number of cantilevered floors, the length and width of the cantilevered section, the thickness of the cantilevered slab, and the height of the cantilevered beam, the key parts, difficulties, loads, and stress conditions are analyzed to obtain the analysis results.
[0060] S102 Structural Selection: Based on the analysis results, the selection of each structure is carried out, namely, the selection of the support 5, the template 7, the transmission device, and the monitoring system;
[0061] S103 Structural Design: During the structural design, considering the characteristics of the structure, the protective frame 6 is installed on the outside of the formwork support module, along with wall ties or column clamping structures. If column clamping is not feasible, steel wire rope tying measures can be implemented. A safety net is installed along the vertical direction of the support 5. For cantilevered sections with settlement structures, a leveling frame 2 is installed, and the guide rail 1 is installed on the leveling frame 2. A lowering device is installed on the formwork support module, using adjustable support components to adjust the vertical height. The guide rail 1 and the pulley block 4 are installed. During the installation of the support 5, a monitoring system is also installed, using both mobile phone and computer terminals for monitoring.
[0062] S104 Stability Verification: Based on the form of the cantilever structure and the erection scheme of the support 5, verify the cantilever anchorage structure and determine the anchor configuration; and based on the structural load of the cantilevered part, configure the selection of the support 5 and verify the stability of the support 5.
[0063] In a preferred embodiment, S2 specifically includes the following process:
[0064] Step S201: Install the cantilevered steel section at the cantilevered part. The end of the cantilevered steel section is leveled with heightening pads to ensure that the height of the end of the cantilevered steel section is the same as that of the cantilevered part. The middle part of the cantilevered steel section is leveled by the leveling frame 2.
[0065] Step S202: Based on the structural dimensions of the cantilevered portion, design the support 5 required for the cantilevered portion, and install the support 5 and the template 7 on site, ensuring the integrity of the support 5;
[0066] Step S203: Hoist the template support module, install the transmission device, adjust the elevation of the support 5 and the template 7, and then pour concrete;
[0067] Step S204: Adjust the bottom support and top support to lower the template 7 as a whole, and slide the bracket 5 to the right along the guide rail 1 through the transmission device;
[0068] Step S205: Hoist the template support module, especially the leveling frame 2;
[0069] Step S206: Remove the cantilevered steel section, install it on the upper layer of the cantilever structure, and hoist the leveling frame 2;
[0070] Step S207: Finally, hoist the formwork support module to the upper layer and adjust the formwork 7 to pour concrete for the upper layer.
[0071] In a preferred embodiment, the precautions in S2 include: when installing and removing the pre-embedded anchoring components, if the design requires an anchoring scheme that penetrates the floor slab, waterproofing measures must be taken at the anchoring location to ensure no leakage occurs; if the design involves an anchoring scheme within a concrete structure, subsequent rust prevention measures should be implemented after the anchoring reinforcement is cut. If the limiting device 3 is made of steel pipe, structural steel, or welded reinforcing bars, welding should be used to ensure a sufficiently strong connection to prevent deformation of the formwork support module upon contact with the limiting structure. If it is necessary to ensure the stability of the support 5, the support 5 and the wall 13 can be reinforced with wall ties 11 such as steel pipes.
[0072] In a preferred embodiment, S3 specifically includes the following process: after the support 5 is erected, the working status of the sensors is checked and the initial data of each sensor is recorded. During the concrete pouring process of the cantilevered part, various monitoring data are collected, a warning threshold is set, and if the warning threshold is exceeded, a warning signal is sent and the pouring operation is stopped immediately. The operation can only be resumed after the inspection is qualified.
[0073] Specific working principle: In the construction of existing buildings, a cantilever structure 15 is provided on each floor along the outer surface of the wall 13. A leveling frame 2 is provided on each cantilever structure 15, with a guide rail 1 at the top of the leveling frame 2. A limiting device 3 is provided at the right end (outer end) of the guide rail 1. A bracket 5 is provided on the guide rail 1, and several pulley sets are provided at the bottom of the bracket 5, allowing the bracket 5 to reciprocate along the guide rail 1. One end of the power component 8 is connected to the suspension point 10 on the bracket 5, and a traction point 9 is provided at the right end of the cantilever structure 15. The other end of the power component 8 is connected to the traction point 9, and the power component 8 drives the bracket 5 to reciprocate along the guide rail 1. A protective frame 6 is provided at the right end of the bracket 5, and a template 7 is provided between the top of the bracket 5 and the cantilever structure 15 on the N+1th floor.
[0074] In summary, through its unique design, this invention integrates key processes and procedures such as scheme design, selection, construction, and monitoring. It innovates construction methods and combines them with information-based monitoring to achieve refined and streamlined management of the entire construction process, guiding the promotion and application of fourth-generation building formwork engineering. Specifically for the construction of fourth-generation cantilever structures, it provides a holistic design encompassing support structure selection, formwork system selection, transmission devices, monitoring, and construction processes. Employing an integrated support system and hoisting method, it eliminates the need for repetitive disassembly and assembly of on-site support systems, thus improving construction efficiency. This invention addresses the issue that in complex structures, especially in fourth-generation building construction, cantilever terraces often require manual erection using traditional support methods, resulting in repetitive operations and significant manpower consumption. The integrated support erection method effectively reduces repetitive erection procedures by personnel, and combined with on-site hoisting equipment, improves efficiency and reduces safety risks.
[0075] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to 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 this invention.
[0076] 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 design construction monitoring method for a structure of a cantilever construction, characterized by, The architecture includes a leveling frame (2) arranged on the overhanging structure (15) of each floor of the building, the upper surface of the overhanging profile steel of the overhanging structure (15) is flush with the upper surface of the leveling frame (2), the top of the leveling frame (2) is provided with a guide rail (1), the bottom of the guide rail (1) is parallel to the top surface of the floor (14) of the same floor, the right end of the guide rail (1) is provided with a limiting device (3); the bracket (5) is provided with a plurality of pulley blocks (4) at the bottom, the pulley blocks (4) are located on the guide rail (1); the bracket (5) is provided with a protective frame (6) at the right end, and the bracket (5) is provided with a formwork (7) at the top, the formwork (7) is located between the bracket (5) and the overhanging structure (15) of the upper layer; The bracket (5) is provided with a hanging point (10), one end of the hanging point (10) is connected with a power assembly (8), and the power assembly (8) can drive the bracket (5) to reciprocate along the guide rail (1); Wherein, the leveling frame (2), the bracket (5), the protective frame (6) and the formwork (7) jointly constitute a formwork support module; the guide rail (1), the limiting device (3), the pulley block (4) and the power assembly (8) jointly constitute a transmission device; The architecture is further provided with a monitoring system; The method comprises the following steps: Step S1 bracket design: according to the characteristics of the implemented fourth-generation building structure, the parameters of the overhanging part are analyzed, the structures of the overhanging structure (15) including the bracket (5), the formwork (7), the transmission device and the monitoring system are selected according to the analysis results, and the structures are designed according to the selection results, and finally the stability of the structures is calculated; Step S2 specific construction; Step S201: install the overhanging profile steel at the overhanging part, use high-rise cushion block to level the end of the overhanging profile steel, ensure that the height of the end of the overhanging profile steel is the same as that of the overhanging part, and level the middle part of the overhanging profile steel through the leveling frame (2); Step S202: according to the structure size of the overhanging part, design the bracket (5) required by the overhanging part, install the bracket (5) and the formwork (7) on site, and ensure the integrity of the bracket (5); Step S203: hoist the formwork support module, install the transmission device, adjust the elevation of the bracket (5) and the formwork (7), and then pour concrete; Step S204: adjust the bottom support and the top support, make the formwork (7) drop as a whole, and make the bracket (5) slide along the guide rail (1) to the right through the transmission device; Step S205: hoist the formwork support module; Step S206: remove the overhanging profile steel, install it to the upper layer of the overhanging structure, and hoist the leveling frame (2); Step S207: finally hoist the formwork support module to the upper layer, adjust the formwork (7), and pour concrete for the upper layer; Step S3 monitoring and control.
2. A design construction monitoring method of a structure for cantilever construction according to claim 1, wherein The power assembly (8) adopts a reversing chain or an electric hoist.
3. The method for design construction monitoring of a structure for cantilever construction of claim 1, wherein, The cantilever structure (15) is provided with a traction point (9) at the right end, and the other end of the power assembly (8) is fixed on the traction point (9), and the support (5) is translated by external traction device.
4. The method for design construction monitoring of a structure for cantilever construction of claim 1, wherein, The upper surface of the cantilevered steel of the cantilever structure (15) and the upper surface of the leveling frame (2) are flush.
5. A design monitoring method of a structure for cantilever construction according to claim 4, wherein The cantilevered steel is provided with a plurality of limiting components.
6. The method for design monitoring of structures for cantilever construction according to claim 1, characterized in that, The S1 specifically includes the following processes: S101 parameter analysis: according to the characteristics of the fourth generation building structure, the height of the cantilever part, the number of cantilever layers, the length and width of the cantilever part, the thickness of the cantilever plate, and the cantilever beam height parameters, the key parts, difficulties, loads and stress conditions are analyzed to obtain the analysis results; S102 structure selection: according to the analysis results, each structure is selected, that is, the support (5) is selected, the formwork (7) is selected, the transmission device is selected, and the monitoring system is selected; S103 structure design: when designing the structure, the protective frame (6) is arranged on the outside of the formwork support module according to the characteristics of the structure, and a wall connecting structure or a column holding structure is arranged, and a steel wire rope tie measure can be arranged under the condition that the column holding structure does not meet the requirements; the safety net is arranged along the vertical direction of the support (5); the leveling frame (2) is arranged at the cantilever part with a settlement structure, and the guide rail (1) is arranged on the leveling frame (2); the lowering device is arranged on the formwork support module, and the adjustable pulling member is used to adjust the height; the guide rail (1) and the pulley block (4) are arranged; the monitoring system is additionally arranged during the installation of the support (5), and the monitoring system is monitored by the mobile phone terminal and the computer terminal; S104 stability checking: according to the form of the cantilever structure and the erection scheme of the support (5), the cantilever anchoring structure is checked and the anchoring member configuration is determined; and according to the structure load of the cantilever part, the type of the support (5) is configured, and the stability of the support (5) is checked.
7. The method for design monitoring of structures for cantilever construction according to claim 1, characterized in that, In the S2, the matters needing attention are: when installing and removing the pre-buried anchoring member, if the design requires the anchoring scheme to penetrate the floor, the waterproof treatment measures of the anchoring position should be taken to ensure that the anchoring position does not leak; if the design requires the anchoring scheme in the concrete structure, the steel rust prevention measures should be taken after the subsequent anchoring steel bars are cut.
8. The method for design monitoring of structures for cantilever construction according to claim 1, characterized in that, The S3 specifically includes the following processes: after the support (5) is erected, the working state of the sensor is checked, and the initial data of each sensor is recorded; during the concrete pouring process of the cantilever part, each monitoring data is collected, the early warning threshold is set, and the early warning signal is sent when the early warning threshold is exceeded, and the pouring operation is stopped immediately, and the operation can be restored after inspection.
Citation Information
Patent Citations
Disassembly-free construction system and construction method for high-altitude large-span cantilever concrete member
CN114427258A
Construction method for lightening hanging basket in cantilever beam pouring method
CN115928611A