Assembled supporting system applied to shear wall structure reinforcement
By designing an assembled support system, the problems of high material costs and poor recycling rate in traditional shear wall reinforcement methods are solved, the stability and reliability of the structure are achieved, and resource waste and environmental pollution are reduced.
Patent Information
- Application Number
- CN202421909688.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-08
AI Technical Summary
Traditional shear wall reinforcement methods use wooden squares and steel pipes, resulting in rapid thermal expansion, shrinkage, rot and damage, high material costs and poor recycling rate.
An assembled support system is designed with lightweight materials including upper and lower floor slabs, shear walls, support components and adjustable jacks to reinforce the shear wall structure with multi-point support and back-top design.
The system reduces the additional burden on the shear wall structure, improves construction efficiency and structural stability and reliability, reduces material costs and resource waste, and meets environmental protection and sustainable development requirements.
Smart Images
Figure CN222924167U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, and particularly relates to an assembled support system applied to the reinforcement of shear wall structures. Background Technique
[0002] Shear walls, also known as wind-resistant walls, seismic walls or structural walls, are the walls in buildings or structures that mainly bear the horizontal loads and vertical loads (gravity) caused by wind loads or seismic actions. Their main function is to prevent structural shear (shearing) failure, increase the stiffness, strength and anti-collapse ability of the structure. They can not only provide vertical load transfer, but also resist the action of horizontal loads through their own stiffness and strength under the action of external forces such as earthquakes.
[0003] Insufficient concrete strength of vertical members will affect the vertical and horizontal bearing capacities of the structure, and will also have an adverse impact on the normal service performance and durability of the structure such as cracks and deformations. Traditional reinforcement methods such as increasing the cross-section, steel-jacketing and externally bonding fiber composite materials will increase the cross-sectional size of the members, and in many cases, it is also difficult to fully meet the design bearing capacity requirements. Using the reinforcement method of structural replacement can fundamentally solve the problem of insufficient member strength.
[0004] Most traditional reinforcement systems use wooden squares and steel pipes for support. Wooden squares have natural properties and are prone to thermal expansion and contraction, resulting in low support firmness for shear walls. Wooden squares will expand when exposed to water, are prone to rot, and have a fast damage rate and poor recycling rate. This not only increases the material cost, but also increases the storage and transportation costs. To solve the above problems, an assembled support system applied to the reinforcement of shear wall structures is proposed. Content of the Utility Model
[0005] To solve the above technical problems, an assembled support system applied to the reinforcement of shear wall structures is provided, which solves the problem that most of the current traditional reinforcement systems use wooden squares and steel pipes for support. Wooden squares have natural properties and are prone to thermal expansion and contraction, resulting in low support firmness for shear walls. Wooden squares will expand when exposed to water, are prone to rot, and have a fast damage rate and poor recycling rate. This not only increases the material cost, but also increases the storage and transportation costs.
[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: An assembled support system applied to the reinforcement of shear wall structures, including an upper floor slab and a lower floor slab. A shear wall is provided between the upper floor slab and the lower floor slab. A support assembly is provided on the outer side of the shear wall. First bolt holes are penetrated through the surface of the shear wall and below the lower floor slab, and second bolt holes are penetrated through the surface of the shear wall and above the upper floor slab. A number of first openings are provided on the surface of the upper floor slab at the position of the support assembly, and second openings are penetrated through the surface of the lower floor slab at the position corresponding to the first openings.
[0007] Preferably, the support assembly includes first tension anchor bolts. The first tension anchor bolts are arranged inside the first bolt holes, and first wing plates are fixedly connected to both sides of the shear wall through bolts on the first tension anchor bolts.
[0008] Preferably, the support assembly further includes second tension anchor bolts. The second tension anchor bolts are arranged inside the second bolt holes, and second wing plates are fixedly connected to both sides of the shear wall through bolts on the second tension anchor bolts.
[0009] Preferably, two first support steel columns are fixedly connected above the first wing plates. The upper ends of the two first support steel columns pass through the second openings and are fixedly connected to a second support steel column through bolts.
[0010] Preferably, the top end of the second support steel column passes through the first opening and is fixedly connected to a jack.
[0011] Preferably, a steel backing plate is fixedly connected to the output end of the jack, and the steel backing plate abuts against the bottom surface of the second wing plate.
[0012] Preferably, the shear wall is L-shaped, and at least one set of support assemblies is provided on each side. Four support points of the support assembly are provided.
[0013] Compared with the prior art, the advantages of the present utility model are as follows:
[0014] 1. In the present utility model, the support structure is designed with lightweight materials, making the self-weight of the entire support system relatively light. This helps to reduce the additional burden on the shear wall structure, reduce the impact on the original structure, and the light self-weight also facilitates the handling and installation during the construction process, improving the construction efficiency.
[0015] 2. The main components of the support structure can be disassembled and stored after use for reuse in subsequent projects. Recycling not only reduces the material cost of the project but also meets the requirements of environmental protection and sustainable development, reducing resource waste and environmental pollution.
[0016] 3. The back - topping support design of the support structure can effectively support and reinforce the shear - wall structure, ensuring the structural stability during and after the reinforcement process. The setting of adjustment devices such as jacks enables the support force to be adjusted according to needs, further improving the safety and reliability of the support system.
[0017] 4. The assembled design simplifies the construction process, reduces the on - site workload, and lowers the construction cost. High - strength materials and reliable design reduce the additional costs brought by maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the present utility model;
[0019] Figure 2 is a top view of the present utility model;
[0020] Figure 3 is a schematic structural diagram of the support assembly in the present utility model;
[0021] Figure 4 is a schematic structural diagram of the support assembly from another perspective in the present utility model;
[0022] Figure 5 is a schematic structural diagram of the present utility model with the support assembly removed.
[0023] The reference numerals in the figures are:
[0024] 1. Upper floor slab; 2. Lower floor slab; 3. Shear wall; 4. Support assembly; 401. First pair of tension anchor bolts; 402. First wing plate; 403. First support steel column; 404. Second support steel column; 405. Second pair of tension anchor bolts; 406. Second wing plate; 407. Jack; 408. Steel backing plate; 5. First opening; 6. First bolt hole; 7. Second bolt hole; 8. Second opening. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.
[0026] Embodiment 1
[0027] Refer to Figures 1-5As shown in the figure, an assembled support system for the reinforcement of shear wall structures includes an upper floor slab 1 and a lower floor slab 2. A shear wall 3 is provided between the upper floor slab 1 and the lower floor slab 2. A support assembly 4 is arranged on the outer side of the shear wall 3. A first bolt hole 6 is penetrated through the surface of the shear wall 3 and the lower part of the lower floor slab 2, and a second bolt hole 7 is penetrated through the surface of the shear wall 3 and the upper part of the upper floor slab 1. A number of first openings 5 are provided on the surface of the upper floor slab 1 at the position of the support assembly 4, and a second opening 8 is penetrated through the surface of the lower floor slab 2 at the position corresponding to the first opening 5. The multi-point support design and adjustability of this support system make the structure more stable and safe when bearing loads, reducing potential safety hazards caused by structural deformation or cracks.
[0028] Specifically, the support assembly 4 includes a first pair of tension anchor bolts 401. The first pair of tension anchor bolts 401 is arranged inside the first bolt hole 6, and first wing plates 402 are fixedly connected to both sides of the shear wall 3 through bolts on the first pair of tension anchor bolts 401.
[0029] Specifically, the support assembly 4 further includes a second pair of tension anchor bolts 405. The second pair of tension anchor bolts 405 is arranged inside the second bolt hole 7, and second wing plates 406 are fixedly connected to both sides of the shear wall 3 through bolts on the second pair of tension anchor bolts 405. Through the tight connection of bolts with the first wing plates 402 and the second wing plates 406, the stability between the support assembly 4 and the shear wall 3 is ensured.
[0030] Preferably, two first support steel columns 403 are fixedly connected above the first wing plates 402. The upper ends of the two first support steel columns 403 pass through the second opening 8 and are fixedly connected to a second support steel column 404 through bolts. The first support steel columns 403 and the second support steel column 404 are designed to be detachable and adjustable, which enables the system to adapt to the reinforcement requirements of shear wall 3 structures with different heights and spans.
[0031] Specifically, the top end of the second support steel column 404 passes through the first opening 5 and is fixedly connected to a jack 407. The jack 407 is used to bear the load on the shear wall 3. Cushion plates are arranged above and below the jack 407 and are connected to the second support steel column 404 and the second wing plate 406. The load borne by each jack 407 is determined according to calculations.
[0032] Preferably, a steel cushion plate 408 is fixedly connected to the output end of the jack 407. The steel cushion plate 408 abuts against the bottom surface of the second wing plate 406. As the main load-bearing component, the jack 407 has a strong load-bearing capacity and can effectively resist the load on the shear wall 3 to ensure the stability of the structure. The setting of the steel cushion plate 408 can effectively prevent direct contact between the jack 407 and the second wing plate 406, avoiding damage caused by friction or extrusion.
[0033] Specifically, the shear wall 3 is L-shaped, and at least one set of support components 4 is provided on each side. There are four support points for the support components 4. This design of multi-point support greatly enhances the overall stability of the structure.
[0034] Working principle: First, use a concrete core drill to open the first hole 5 and the second hole 8 on the upper floor slab 1 and the lower floor slab 2 respectively, and open the first bolt hole 6 and the second bolt hole 7 at the positions shown in the shear wall 3. Pass the first pair of tension anchor bolts 401 into the corresponding first bolt hole 6, and pass the second pair of tension anchor bolts 405 into the corresponding second bolt hole 7. Fix the first wing plate 402 at both ends of the first pair of tension anchor bolts 401 with anti-loosening bolts, and fix the second wing plate 406 at both ends of the second pair of tension anchor bolts 405, so that the first wing plate 402 and the second wing plate 406 are close to the outer surface of the shear wall 3. Fix the first support steel column 403 on the first wing plate 402 through connecting bolts, then fix the second support steel column 404 on the first support steel column 403, then install the jack 407 at the top of the second support steel column 404, and place a steel backing plate 408 between the output end of the jack 407 and the bottom surface of the second wing plate 406. Start the jack 407 so that the steel backing plate 408 abuts against the bottom of the second wing plate 406 to complete the installation of the support system. Figure 1 Shown position
[0035] Embodiment 2
[0036] 1. Implementation of the control system
[0037] (1) Control system: Adopt a central control system to control the jacking force of each group of jacks 407. The system operates synchronously under computer control, so that the jacking forces are synchronized during the jacking process to ensure the structural force balance.
[0038] (2) Jacking system: Adopt multiple jacks 407 to form a jacking group, and the group coordinates the operation.
[0039] 2. Setting of the jacking device and setting of the digital control system.
[0040] Adopt a central control system (PLC, servo driver, etc.) to control the synchronous operation of the jack 407 cluster, control the construction deviation, monitor the entire operation, and realize information-based construction.
[0041] 3. Monitoring implementation
[0042] During the replacement construction process, it is necessary to ensure the real-time nature of the monitoring data, so as to be able to timely handle the safety problems during the construction process. A higher remote automation monitoring frequency can ensure the safety and applicability of the structural components during the construction of the shear wall 3, and conduct real-time remote automation monitoring on the support system and the components around the shear wall 3.
[0043] 4. Monitoring Equipment and Methods
[0044] During the replacement construction process, it is necessary to ensure that the beam and slab components connected to the replacement structure do not undergo large deformations, cracks, or bearing capacity problems with the upper walls and columns, and to ensure the stability of the support system. The monitoring contents include steel bar stress, concrete surface strain, support strain, beam deflection, and beam displacement.
[0045] 5. Monitoring Point Monitoring Sequence is as follows:
[0046] (1) Before installing the first wing plate 402 and the second wing plate 406, install concrete surface strain sensors on the upper and lower walls and columns.
[0047] (2) Install displacement sensors and inclinometers on the upper layer beams to determine the natural state of the structure.
[0048] (3) After installing the first wing plate 402 and the second wing plate 406, install surface strain sensors.
[0049] (4) After the support system is erected, install steel support strain sensors and collect the monitoring data of all measuring instruments.
[0050] 6. Layout of the Monitoring System
[0051] The monitoring system is responsible for monitoring the displacement of components, the displacement of the jack 407, and the hydraulic pressure inside the jack 407, thereby realizing the monitoring of forces, and transmitting the monitoring signals to the control system in real time. The control system corrects the operation instructions.
[0052] (1) Stress Monitoring
[0053] Since the force on the support part will cause bending and shear deformations of the first wing plate 402 and the second wing plate 406, in order to ensure that the first wing plate 402 and the second wing plate 406 will not be damaged under the bending moment caused by the vertical support pressure and the possible unbalanced tensile force, and to ensure that the first wing plate 402 and the second wing plate 406 can effectively transfer the temporary support force to the upper and lower shear walls 3, thereby completing the unloading of the shear wall 3, monitor the stress of the corbel and monitor the stress of the steel support.
[0054] (2) Strain Monitoring
[0055] 1) In order to ensure the normal service performance of the upper and lower walls of the shear wall 3 and not crack during the replacement construction, monitor the concrete surface strain of the lower and upper walls. The layout and quantity of the monitoring points are determined according to relevant calculations.
[0056] 2) Monitor the strain of the steel pipe support to ensure the unloading effect of the support, and arrange one monitoring point for each support.
[0057] 3) The vibrating wire strain sensor is used to measure the concrete strain. The sensor is pasted on the concrete surface of the monitoring point with high-strength AB glue, and the transmission box is fixed with expansion bolts.
[0058] 4) The vibrating wire strain sensor is used to measure the support strain. The sensor is pasted on the surface of the steel support with high-strength AB glue, and the transmission box is fixed on the steel support with cable ties.
[0059] 7. Monitoring and alarming
[0060] Three-level early warnings are set, and the three-level early warning values are the maximum early warning limit value, 80% of the maximum early warning limit value, and 60% of the maximum early warning limit value. The maximum limit value of the corbel axial force is determined according to the response value of the most unfavorable working condition calculated by finite element. The maximum limit value of the concrete strain is selected as the concrete cracking strain. The maximum limit value of the steel pipe support strain is selected as the yield strain of Q235 steel. The beam displacement and inclination angle are converted according to the deflection limit value of Lo / 300 required by the "Code for Design of Concrete Structures (GB50010-2010)", where Lo is the beam span. The monitored data value is compared with the preset three-level alarm threshold, and an alarm is given when the alarm threshold is exceeded. The monitoring frequency is 1 time per 30 minutes. During the process of chiseling the concrete column and pouring new concrete in stages, the monitoring frequency is increased to 1 time per 20 minutes. After completion, the change is continuously monitored, and the monitoring equipment is removed after it stabilizes.
[0061] 8. Control: When unloading the original structure, that is, when the jack 407 is propping up, monitoring instruments are arranged at the beam end and the wall. The dial indicator is used to control the beam end displacement, and the structural displacement control value is 0.01 mm - 0.05 mm. Prevent the excessive support force from damaging the original structure.
[0062] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.
Claims
1. An assembled support system for reinforcing a shear wall structure, characterized in that: The invention comprises an upper floor (1) and a lower floor (2), wherein a shear wall (3) is arranged between the upper floor (1) and the lower floor (2), a support assembly (4) is arranged on the outer side of the shear wall (3), a first bolt hole (6) is provided through the surface of the shear wall (3) and the lower side of the lower floor (2), a second bolt hole (7) is provided through the surface of the shear wall (3) and the upper side of the upper floor (1), a plurality of first openings (5) are provided on the surface of the upper floor (1) and at the position of the support assembly (4), and a second opening (8) is provided through the surface of the lower floor (2) at the position corresponding to the first opening (5).
2. The assembled support system for reinforcing a shear wall structure according to claim 1, characterized in that: The support assembly (4) comprises a first tension anchor bolt (401), wherein the first tension anchor bolt (401) is arranged inside the first bolt hole (6), and the first tension anchor bolt (401) is fixedly connected to the first wing plate (402) on both sides of the shear wall (3) by bolts.
3. The assembled support system for reinforcing a shear wall structure according to claim 2 is characterized in that: The support assembly (4) further comprises a second pair of tension anchor bolts (405), wherein the second pair of tension anchor bolts (405) are arranged inside the second bolt hole (7), and the second pair of tension anchor bolts (405) are fixedly connected to the second wing plate (406) on both sides of the shear wall (3) by bolts.
4. The assembled support system for reinforcing a shear wall structure according to claim 2 is characterized in that: Two first supporting steel columns (403) are fixedly connected above the first wing plate (402), and the upper ends of the two first supporting steel columns (403) pass through the second hole (8) and are fixedly connected to the second supporting steel column (404) by bolts.
5. The assembled support system for reinforcing a shear wall structure according to claim 4 is characterized in that: The top end of the second supporting steel column (404) passes through the first hole (5) and is fixedly connected to a jack (407).
6. The assembled support system for reinforcing a shear wall structure according to claim 5 is characterized in that: The output end of the jack (407) is fixedly connected with a steel pad (408), and the steel pad (408) abuts against the bottom surface of the second wing plate (406).
7. The assembled support system for reinforcing a shear wall structure according to claim 1 is characterized in that: The shear wall (3) is L-shaped, and at least one set of support components (4) is arranged on each side, and the support components (4) are provided with four support points.