Maintenance method for frame-core tube composite structure super high-rise shear wall

Abstract

The application discloses a kind of for frame core tube combination structure super high layer shear wall maintenance method, comprising: in current floor pouring inner wall and outer wall, form core tube structure;In current floor installation permanent fire main pipe and multiple with the fire main pipe communication booster water pump;Wherein, the interval between adjacent two booster water pumps is 100m;First full frame is erected between the inner wall and the outer wall;Along the circumference of the inner wall, install the spray system that is communicated with the fire main pipe on the first full frame;The inner wall and the outer wall are maintained by using the spray system spray.The application is by being set between inner wall and outer wall full frame, ensure that the spray system sprays the maintenance effect of inner wall, utilize spray system to spray the maintenance of inner wall, prevent that a large amount of temperature difference crack and shrinkage crack will be generated in the hydration process of mass concrete affected by hydration heat, improve the applicability and durability of concrete.

Description

Technical Field

[0001] This invention relates to the field of maintenance technology for shear walls in super high-rise buildings with frame-core tube composite structures, and particularly to a maintenance method for shear walls in super high-rise buildings with frame-core tube composite structures. Background Technology

[0002] In related technologies, the frame-core tube composite structure is a steel-concrete composite structure, meaning: the core area is a tube structure containing multiple inner and outer walls, and the perimeter is frame columns. Multiple steel beams and columns are installed inside the tube, while the outer frame columns are steel-concrete composite columns. The core tube and the outer frame columns are connected by reinforced concrete beams and slabs. The reinforcing bars at beam-column joints must not be broken. Furthermore, the steel-concrete composite structure is a structure formed by reinforced concrete encasing steel sections. When applying steel-concrete composite structures in super high-rise buildings, walls, columns, and connecting beams generally use steel-concrete composites, while beams and slabs use reinforced concrete structures. The outer frame columns are connected to the core tube by reinforced concrete beams or steel-concrete composite beams. The beam reinforcement cannot be broken in the shear walls of the core tube, making the construction process of the core tube preceding the outer frame unsuitable; therefore, integral pouring of the entire floor is required.

[0003] Although the roof slab can be cured by covering and watering after the concrete is poured, the core tube shear wall, i.e. the interior wall, cannot be effectively cured.

[0004] Due to the large cross-sectional dimensions of the core tube shear wall and the obstruction at the junction of the roof slab and the core tube shear wall, curing water cannot reach the surface of the shear wall. Watering by pipes alone cannot achieve the desired curing effect and is prone to water pollution. This makes the curing of the shear wall in the core area difficult. If the curing is not done properly, the large volume of concrete will generate a large number of temperature difference cracks and shrinkage cracks due to the heat of hydration during the hydration process, affecting the applicability and durability of the concrete. Summary of the Invention

[0005] The main objective of this invention is to provide a maintenance method for shear walls in super high-rise buildings with frame-core tube composite structures. This method aims to solve the technical problems in the prior art where, due to the large cross-sectional dimensions of the core tube shear wall and the obstruction at the junction of the roof slab and the core tube shear wall, maintenance water cannot reach the shear wall surface. Simply watering with pipes is insufficient for maintenance and easily causes water pollution, leading to significant maintenance difficulties in the core area shear wall. Furthermore, inadequate maintenance results in numerous temperature difference cracks and shrinkage cracks during the hydration process of large-volume concrete due to the heat of hydration, affecting the applicability and durability of the concrete.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a maintenance method for shear walls in super high-rise buildings with frame-core-tube composite structures, comprising: The interior and exterior walls are poured on the current floor to form the core tube structure; A permanent fire main pipeline and multiple booster pumps connected to the fire main pipeline are installed on the current floor; wherein the distance between two adjacent booster pumps is 100m. A first full-span scaffold is erected between the inner wall and the outer wall; A sprinkler system connected to the main fire duct is installed on the first full-span frame along the perimeter of the inner wall; The interior and exterior walls are maintained by spraying with the spray system.

[0007] Optionally, in the above-described maintenance method for the shear wall of a super high-rise building with a frame-core tube composite structure, the main fire-fighting pipeline is located close to the inner wall, and the step of installing a sprinkler system along the perimeter of the inner wall on the first full-span scaffold includes: A drainage hole is formed on the main fire-fighting pipeline; The sprinkler system is connected to the main fire-fighting pipeline at the drainage hole.

[0008] Optionally, in the above-mentioned maintenance method for the shear wall of a super high-rise building with a frame core tube composite structure, the spraying system includes spraying horizontal pipes and spraying vertical pipes; The step of connecting the sprinkler system to the main fire-fighting pipeline at the drainage hole includes: Connect the spray riser to the drainage hole; The horizontal spray pipe is installed at the top of the first full-span frame; wherein the horizontal spray pipe is connected to the vertical spray pipe via a flexible metal hose. A spray head branch pipe is installed every 2m on the horizontal spray pipe, and a spray head is installed on the spray head branch pipe; wherein, the spray head branch pipe is connected to the horizontal spray pipe via a tee.

[0009] Optionally, in the above-described maintenance method for the shear wall of a super high-rise building with a frame-core tube composite structure, before the step of installing a sprinkler system connected to the main fire-fighting pipeline on the first full-span scaffold along the perimeter of the inner wall, the method further includes: Cut the pipe to form multiple horizontal pipe sections; Two adjacent horizontal pipes are connected by a T-joint to form the spray horizontal pipe; wherein the length of each horizontal pipe is 2m.

[0010] Optionally, in the above-described maintenance method for shear walls of super high-rise buildings with frame-core tube composite structures, before the step of connecting two adjacent horizontal pipes with a T-junction to form the spray horizontal pipe, the method further includes: Clean all the horizontal pipes described above; The target depth is obtained based on the depth of the tee pipe; According to the target depth, the installation depth is marked on the pipe body of each of the horizontal pipes.

[0011] Optionally, in the above-described maintenance method for the shear wall of a super high-rise building with a frame-core tube composite structure, the step of connecting two adjacent horizontal pipes using a tee pipe to form the spray horizontal pipe includes: The tee pipe is heat-fused to obtain a tee to be installed; Insert the horizontal pipe into the tee to be installed to the installation depth.

[0012] Optionally, in the above-mentioned maintenance method for the shear wall of a super high-rise building with a frame core tube composite structure, the material of the spray horizontal pipe and the spray vertical pipe is PPR.

[0013] Optionally, in the above-described maintenance method for super high-rise shear walls of frame-core tube composite structures, the step of installing the spray pipe at the top of the first full-span scaffold includes: The spray pipe is installed at the top of the first full-span frame using a telescopic assembly; The telescopic component includes: A clamping member is detachably clamped to the first full-span frame, and a first connecting block is provided on the outer edge of the clamping member; A sleeve, the sleeve being fitted onto the horizontal spray pipe, the outer edge of the sleeve being provided with a second connecting block, the second connecting block being disposed on the same side as the first connecting block; and... At least two connecting rods, one end of each connecting rod is rotatably connected to the second connecting block, and the other end of each connecting rod is threadedly connected to the first connecting block. The sleeve is movable in a direction toward or away from the clamping member, so that the spray pipe moves toward or away from the inner wall.

[0014] Optionally, in the above-mentioned maintenance method for super high-rise shear walls of frame-core tube composite structures, the clamping member has a ring structure, an opening is formed on one side of the clamping member, and a fixing member is threadedly connected to the opening.

[0015] Optionally, in the above-mentioned maintenance method for the shear wall of a super high-rise building with a frame core tube composite structure, the roof slab of the current floor is provided with a reserved hole that communicates with the target floor. After the step of using the spray system to spray and maintain the interior and exterior walls, the method further includes: Construct a second full-span scaffold on the target floor; The sprinkler system on the current floor is transferred and installed to the second full-span frame on the target floor through the reserved holes in the roof slab.

[0016] The above-described one or more technical solutions provided by this invention can have the following advantages or at least achieve the following technical effects: This invention proposes a curing method for shear walls in super high-rise buildings with frame-core tube composite structures. By setting up a full-span scaffold between the inner and outer walls, the spraying system ensures the effective curing of the inner walls. This spraying system prevents the formation of numerous temperature difference cracks and shrinkage cracks due to the heat of hydration during the hydration process of large-volume concrete, improving the applicability and durability of the concrete. Furthermore, by utilizing the fire-fighting water system, combining the pipes and equipment of the formal fire hydrant system with a small number of temporary pipes and equipment, the method ensures fire safety and temporary water supply during the construction of super high-rise buildings while meeting the water demand of the spraying system. This reduces the investment in temporary equipment and materials needed to accommodate the curing requirements of the inner walls, thereby lowering production costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a schematic flowchart of the maintenance method for the shear wall of a super high-rise building with a frame core tube composite structure according to the present invention. Figure 2 for Figure 1 Detailed flowchart of step S400; Figure 3 This is a structural schematic diagram of the super high-rise shear wall of the frame core tube composite structure of the present invention; Figure 4 This is a schematic diagram of the installation structure of the telescopic components, full-span scaffolding, and sprinkler system involved in the present invention. Figure 5 This is a schematic diagram of the structure of the telescopic component involved in the present invention; Figure 6 This is a schematic diagram of the internal structure of the second connecting block involved in the present invention.

[0019]

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] It needs to be explained that, In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] In this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element. Furthermore, the meaning of "and / or" throughout the text includes three parallel options; for example, "A and / or B" includes option A, option B, or options where both A and B are satisfied.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0025] In this invention, if there are descriptions involving "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0026] In this invention, the use of suffixes such as "module," "component," "part," "unit," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" can be used interchangeably.

[0027] For those skilled in the art, the specific meanings of the above terms in this invention can be understood according to the specific circumstances. Furthermore, the technical solutions of the various embodiments can be combined with each other; however, this is based on the premise that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0028] The inventive concept of the present invention will be further explained below with reference to some specific embodiments.

[0029] This invention proposes a maintenance method for shear walls in super high-rise buildings with a frame-core tube composite structure.

[0030] Reference Figure 1 and Figure 3 , Figure 1 This is a schematic flowchart of the maintenance method for the shear wall of a super high-rise building with a frame core tube composite structure according to the present invention. Figure 3 This is a structural schematic diagram of the super high-rise shear wall of the frame core tube combined structure of the present invention.

[0031] In one embodiment of the present invention, such as Figure 1 and Figure 3 As shown, a maintenance method for shear walls in super high-rise buildings with a frame-core tube composite structure includes the following steps: Step S100: Pour the inner wall 110 and the outer wall 120 on the current floor to form the core tube structure 100; Step S200: To ensure that the water pressure meets the requirements for maintenance and construction water, a permanent fire main pipeline and multiple booster pumps connected to the fire main pipeline are installed on the current floor; the distance between two adjacent booster pumps is 100m. Step S300: Erect the first full-span scaffolding 300 between the inner wall 110 and the outer wall 120; Step S400: The frame-core tube composite structure needs to be cast in one layer. After the concrete is poured, due to the large cross-sectional size of the shear wall of the core tube, the maintenance of the shear wall in the core area is difficult. In addition, since the core tube is far from the climbing formwork, it is not possible to carry out maintenance by installing sprinkler pipes on the climbing formwork. Therefore, in the construction process of the frame-core tube composite structure of the super high-rise building, after the inner wall 110 is poured, a sprinkler system connected to the main fire protection pipeline is installed along the perimeter of the inner wall 110 on the first full-span scaffold to achieve sprinkler maintenance of the inner wall 110. Step S500: Use a spray system to spray and cure the interior wall 110 and the exterior wall 120.

[0032] For ease of understanding, a specific implementation method is shown below: For the maintenance of the main structure above the first floor, water is supplied via a zoned system using pressurized water pumps. When the main structure is under construction up to the first and 21st floors, two sets of pressurized pumps are installed on each floor, with two pumps in each set, serving as backups for each other. Each pump set is equipped with a 10m³ precast water tank, and all pressurized pumps are 100DL pumps. Type 6 multistage water pump, head 120 meters.

[0033] The main water supply pipeline adopts a "temporary / permanent combination" approach, utilizing the fire water system and combining the pipes and equipment of the formal fire hydrant system with a small number of temporary pipes and equipment. This ensures fire safety during the construction of the high-rise building while guaranteeing temporary water supply, achieving seamless transition and reducing the investment in temporary equipment and materials. Two main fire / temporary water supply pipelines are configured. One 100mm galvanized steel pipe riser is installed on each of the north and south sides of the core tube. A water supply system outlet with a diameter of DN25 is installed on each riser at a height of 1.1m above the corresponding floor level. A shut-off valve is installed at each outlet, and a pressure gauge is installed at each floor outlet to ensure a water pressure of not less than 0.15 MPa.

[0034] The 400 sprinkler system mainly includes sprinkler risers and sprinkler horizontal pipes; Sprinkler riser installation: The sprinkler riser uses PPR pipe, specification Ø25, and is connected from the outlet of the fire / temporary water main pipeline. The water supply risers are connected by heat fusion.

[0035] Before and after heat fusion, the heated surface should be wiped clean with a clean cotton cloth. The heat fusion depth, heating time and temperature, and cooling time of the heat fusion connection should comply with the regulations of the heat fusion tool manufacturer and the PPR pipe, fitting, and pipe accessory manufacturer, as well as their quality acceptance standards. Stress-free connection must be ensured during connection; the connectors must not be moved or subjected to any external force during processing and cooling.

[0036] The operating sequence for hot-melt PPR pipes is as follows: (1) The hot melt tool should be connected to the power supply and the working temperature indicator light should be on before operation can begin.

[0037] (2) When cutting pipes, the end face must be perpendicular to the pipe axis. Pipe cutting is generally done using pipe shears or pipe cutting machines. If necessary, a sharp hacksaw can be used, but the burrs on the cut surface of the pipe should be removed after cutting.

[0038] (3) The connection surfaces of pipes and fittings must be clean, dry and free of oil.

[0039] (4) Use calipers and a suitable pen to measure and mark the hot melt depth at the pipe end.

[0040] (5) When welding elbows or tees, pay attention to their direction according to the construction drawings, and mark their position with auxiliary marks in the straight direction of the fittings and pipes.

[0041] (6) When connecting, insert the tube end into the heating sleeve of the corresponding specification without rotation, insert it to the marked depth, and at the same time push the tube onto the heating head without rotation until the specified mark is reached.

[0042] (7) After the heating time is reached, immediately remove the pipe and fittings from the heating sleeve and heating head at the same time, and quickly insert them into the marked depth in a straight line without rotation, so that a uniform flange is formed at the joint. The joint that has just been melted can be corrected within the processing time specified in the specification, but rotation is strictly prohibited.

[0043] Assemble the horizontal and vertical sprinkler pipes: The horizontal sprinkler pipes are made of the same material and have the same specifications as the vertical sprinkler pipes. Starting from the temporary / fire main pipe, a tee is installed every 2 meters. The horizontal pipes are connected one by one by heat fusion through the tee. The sprinkler branch pipes are led out through the tee with internal threaded connectors.

[0044] Metal flexible hoses are used to connect the sprinkler risers and horizontal sprinkler pipes during installation, which can compensate for displacement between the risers and horizontal sprinkler pipes. The horizontal sprinkler pipes are connected to the top horizontal bar of the first full-span scaffold 300 of the main structure via an expansion joint 500.

[0045] A solenoid valve is installed at the outlet of the sprinkler riser, and the solenoid valve is connected to the sprinkler linkage system control box via a control cable. After the sprinkler linkage system control box is powered on and debugged normally, sprinkler curing parameters, such as temperature and curing interval, are set on the smart construction site command center interface. The concrete is monitored online 24 hours a day, and the monitoring data is synchronized to the platform for analysis and judgment by the control center. If the data exceeds the set threshold, the conditions for sprinkler operation are confirmed, and then the solenoid valve in the pipeline is automatically activated to begin spray curing. Alternatively, the concrete sprinkler system can be activated with a one-click function on a mobile phone, eliminating the need for on-site operation.

[0046] After the sprinkler risers and horizontal pipes are installed and the wall and column formwork is removed, the sprinkler system 400 is debugged. First, turn on the electrical box switch, check the water pump operation, record the pressure gauge pressure, and observe the spray direction of the sprinkler heads, whether they are working properly, and whether they can spray a mist of water. Then, use the remote control, the smart construction site command center, and the mobile phone to check whether the smart sprinkler system 400 is turned on normally and how the sprinkler system 400 is used to maintain the shear wall. Set the smart sprinkler system 400 to turn on once per hour, with each maintenance lasting 30 minutes, and observe whether it can be turned on and off normally. After a 1-hour test, it is accepted. If it cannot work normally, check the cause, rectify it, and debug again until it is accepted.

[0047] After successful commissioning, the core tube shear wall will be formally cured, specifically the inner wall 110, for 7 days. Quality inspectors will periodically check the curing condition of the concrete surface, requiring it to remain moist for an extended period. If the set curing interval cannot be met due to excessively high temperatures, the curing time can be adjusted. The intelligent sprinkler system 400 can be adjusted via the control switch on the mobile terminal to increase the number of curing cycles.

[0048] After the concrete curing of the shear wall (i.e., the interior wall) is completed and the first full-span scaffolding of the lower main structure is erected, the spray risers and / or spray horizontal pipes can be transferred to the upper floor for continued use through the core tube elevator shaft.

[0049] The technical solution of this invention ensures the spray curing effect of the sprinkler system 400 on the inner wall 110 by setting a first full-span frame 300 between the inner wall 110 and the outer wall 120. The spray curing of the inner wall 110 by the sprinkler system 400 prevents a large number of temperature difference cracks and shrinkage cracks from being generated by the heat of hydration during the hydration process of large-volume concrete, thereby improving the applicability and durability of concrete. Furthermore, by utilizing the fire water system, the pipes and equipment of the formal fire hydrant system are combined with a small number of temporary pipes and equipment to ensure fire safety and temporary water supply during the construction of high-rise buildings, while meeting the water demand of the sprinkler system 400. This reduces the investment in temporary equipment and materials to meet the curing needs of the inner wall 110, thereby reducing production costs.

[0050] Continue to refer to Figure 1 and refer to Figure 2 , Figure 2 for Figure 1 A detailed flowchart of step S400.

[0051] In one embodiment, such as Figure 1 and Figure 2 As shown, the main fire-fighting pipeline is installed close to the inner wall 110. The steps for installing the sprinkler system along the perimeter of the inner wall 110 on the first full-span scaffold include: Step S410: Form a drainage hole on the main fire hydrant pipe; Step S420: Connect the sprinkler system to the main fire hydrant at the drain hole.

[0052] The technical solution of this invention adopts a "temporary / permanent combination" approach, utilizing the fire water system and combining the pipes and equipment of the formal fire hydrant system with a small number of temporary pipes and equipment. This ensures fire safety during the construction of super high-rise buildings while ensuring temporary water supply, achieving seamless conversion and reducing the investment in temporary equipment and materials.

[0053] In one embodiment, the sprinkler system includes horizontal sprinkler pipes and vertical sprinkler pipes; Step S411: The step of connecting the sprinkler system to the main fire hydrant at the drain hole includes: Step S412: Connect the spray riser to the drainage hole; Step S413: Install a horizontal spray pipe at the top of the first full-span frame; wherein the horizontal spray pipe is connected to the vertical spray pipe via a flexible metal hose; Step S414: Install a spray head branch pipe every 2m on the horizontal spray pipe, and install a spray head on the spray head branch pipe; wherein, the spray head branch pipe is connected to the horizontal spray pipe through a tee.

[0054] Specifically, the fire protection system 600 includes a main fire protection pipe, a sprinkler riser installed on one side of the inner wall 110, the water inlet of the sprinkler riser is connected to the water outlet of the fire protection system 600, that is, connected to the main fire protection pipe through a drainage hole; the sprinkler horizontal pipe is connected to the sprinkler riser.

[0055] As an alternative to this embodiment, during the construction of a super high-rise building with a frame core tube composite structure, after the temporary water pipes are installed, the temporary water pipes can be used as sprinkler risers.

[0056] In one embodiment, prior to the step of installing a sprinkler system connected to the main fire hydrant on a first scaffold along the perimeter of the inner wall 110, the method further includes: Step A100: Cut the pipe to form multiple horizontal pipe sections; Step A200: Connect two adjacent horizontal pipes using a T-joint to form a spray horizontal pipe; the length of each horizontal pipe is 2m.

[0057] In one embodiment, before the step of connecting two adjacent horizontal pipes with a T-joint to form a spray horizontal pipe, the method further includes: Step A210: Clean all horizontal pipes; Step A220: Obtain the target depth based on the depth of the tee pipe; Step A230: Mark the installation depth on the pipe body of each horizontal pipe according to the target depth.

[0058] In one embodiment, the step of connecting two adjacent horizontal pipes using a T-joint to form a spray horizontal pipe includes: Step A201: Heat melt the tee pipe to obtain the tee to be installed; Step A202: Insert the horizontal pipe into the tee to be installed to the installation depth to improve the structural stability of the spray pipe and ensure the spraying effect.

[0059] In one embodiment, the spray horizontal pipe and the spray vertical pipe are made of PPR.

[0060] Continue to refer to Figure 1 , Figure 2 and Figure 3 and refer to Figure 4 , Figure 5 and Figure 6 , .

[0061] In one embodiment, such as Figures 1 to 6 As shown, the steps for installing the horizontal sprinkler pipe at the top of the first full-span frame include: Step R100: Install the spray pipe at the top of the first full-span frame using the telescopic assembly; The telescopic assembly includes: a clamping member detachably clamped to the first full-span frame 300, with a first connecting block 511 on the outer edge of the clamping member; a sleeve 520 sleeved on the spray horizontal pipe, with a second connecting block 521 on the outer edge of the sleeve 520, the second connecting block 521 being disposed on the same side as the first connecting block 511; and at least two connecting rods 530, one end of each connecting rod 530 being rotatably connected to the second connecting block 521, and the other end of each connecting rod 530 being threadedly connected to the first connecting block 511. The sleeve 520 is movable in the direction of approaching or moving away from the clamping member, so that the spray horizontal pipe approaches or moves away from the inner wall 110.

[0062] Specifically, to make the distance between the spray horizontal pipe and the inner wall 110 adjustable, and to improve the curing effect on the inner wall 110 during the spraying curing process of the spraying system 400, the spray horizontal pipe is set on the horizontal pipe of the first full-span frame 300 through multiple telescopic components 500. During use, by adjusting the distance between each telescopic component 500 and the first full-span frame 300, the distance between the spray horizontal pipe and the inner wall 110 can be adjusted to match the different sizes of the inner wall 110, thereby improving the spraying curing effect on the inner wall 110. For example, when the outer contour of the inner wall 110 is set to gradually shrink or expand, the distance between each telescopic component 500 and the first full-span frame 300 can be adjusted in sequence to adapt the spray horizontal pipe to the outer contour of the inner wall 110.

[0063] The frame-core tube composite structure requires integral pouring of concrete. After the concrete is poured, the shear wall cross-section of the core tube is large, which makes the maintenance of the shear wall in the core area difficult. In addition, since the core tube is far from the climbing formwork, it is not possible to carry out maintenance by installing sprinkler pipes on the climbing formwork. Therefore, in the construction process of the frame-core tube composite structure of the super high-rise building, after the inner wall 110 is poured, a first full-span scaffold 300 is erected between the inner wall 110 and the outer wall 120 along the outer edge of the inner wall 110. Multiple expansion joints 500 are installed on the first full-span scaffold 300, and the sprinkler system 400 is connected through the expansion joints 500 so that the sprinkler system 400 is spaced out on one side of the inner wall 110.

[0064] After the sprinkler system 400 is installed on the telescopic component 500, the telescopic component 500 can extend and retract in the direction of approaching or moving away from the first full-span frame 300. When the telescopic component 500 approaches the first full-span frame 300, the sprinkler system 400 connected to the telescopic component 500 is driven by the telescopic component 500 and moves away from the inner wall 110. When the telescopic component 500 moves away from the first full-span frame 300, the sprinkler system 400 connected to the telescopic component 500 is driven by the telescopic component 500 and moves towards the inner wall 110, so as to adapt to the different sizes of the inner wall 110 and improve the sprinkler maintenance effect.

[0065] During the spraying process, in order to reduce the manufacturing cost of the spraying system 400 and ensure the spraying effect, the distance between two adjacent spray heads is 2m, and the spray radius of each spray head is 1m, that is, the radiation range of each spray head is 2m.

[0066] The telescopic assembly 500 includes: a clamping member 510, which is detachably clamped to the first full-span frame 300, and a first connecting block 511 is provided on the outer edge of the clamping member 510; a sleeve 520, which is sleeved on the spray horizontal pipe, and a second connecting block 521 is provided on the outer edge of the sleeve 520, and the second connecting block 521 is provided on the same side as the first connecting block 511; and at least two connecting rods 530, one end of each connecting rod 530 being rotatably connected to the second connecting block 521, and the other end of each connecting rod 530 being threadedly connected to the first connecting block 511, wherein at least two connecting rods 530 are spaced apart.

[0067] Specifically, in order to reduce the cost of spraying maintenance on the interior wall 110, the clamping member 510 is detachably clamped to the horizontal pipe of the first full-span scaffold 300 so that the clamping member 510 can be reused after disassembly. After the clamping member 510 is clamped to the horizontal pipe of the first full-span scaffold 300, the sleeve 520 fitted around the spray horizontal pipe is connected to the clamping member 510 through at least two connecting rods 530.

[0068] When it is necessary to adjust the distance between the horizontal spray pipe and the inner wall 110, by simultaneously rotating each connecting rod 530, the part of each connecting rod 530 that is threadedly connected to the first connecting block 511 moves in or out of the first connecting block 511 under the limiting action of the thread, so that the second connecting block 521 that is rotatably connected to each connecting rod 530 moves closer to or further away from the first connecting block 511, thereby driving the sleeve 520 connected to the second connecting block 521 to move further away from or closer to the inner wall 110, so that the spray system 400 has an extension function that adapts to different sizes of the inner wall 110, ensuring the spray maintenance effect.

[0069] Understandably, referring to Figure 6 , Figure 6 This is a schematic diagram of the internal structure of the second connecting block involved in the present invention.

[0070] like Figure 6 As shown, the second connecting block 521 has an annular limiting groove 522 pre-formed inside. A rod sleeve 531 is rotatably arranged in the limiting groove 522. The rod sleeve 531 is sleeved on the connecting rod 530. When the connecting rod 530 is rotated, the side wall of the rod sleeve 531 abuts against the inner wall of the limiting groove 522, so as to drive the second connecting block 521 to move closer to or away from the first connecting block 511, adjust the distance between the spray system 400 and the first full-span frame 300, thereby adjusting the distance between the spray system 400 and the inner wall 110, and ensuring the spray curing effect.

[0071] Specifically, a bearing is selected as the sleeve 531, and the inner ring of the bearing is fixedly connected to the connecting rod 530. In one embodiment, the clamping member has a ring-shaped structure, with an opening formed on one side of the clamping member, and a fixing member is threadedly connected to the opening.

[0072] In one embodiment, when adjusting the spray system 400 to move toward or away from the inner wall 110, since only the relative position between the spray horizontal pipe and the first full-span frame 300 is adjusted, the spray vertical pipe and the spray horizontal pipe are connected by a metal flexible hose to compensate for the displacement between the spray horizontal pipe and the spray vertical pipe.

[0073] It is understandable that when adjusting the relative position between the horizontal spray pipe and the first full-span frame 300, the displacement between the horizontal spray pipe and the vertical spray pipe is less than the length of the metal hose.

[0074] Understandably, PPR is random copolymer polypropylene, which has high strength, excellent processing performance, good creep resistance at higher temperatures, and the unique high transparency of random copolymer polypropylene. It can be widely used in the production of pipes, sheets, daily necessities, packaging materials, household appliance parts, and various films. In order to ensure the service life of the spray horizontal pipe and spray vertical pipe, reduce the load on the telescopic component 500, and prevent the actual spray position from being misaligned with the required spray position after the spray horizontal pipe drives the telescopic component 500 to rotate, thereby ensuring the spray curing effect.

[0075] In one embodiment, for ease of operation, the distance from the connection point between the spray riser and the spray horizontal pipe to the bottom end of the spray riser is greater than or equal to 1m.

[0076] In one embodiment, a shut-off valve and a pressure gauge are installed at the connection between the spray riser and the spray horizontal pipe to ensure that the water pressure is not less than 0.15 MPa, which meets the actual spray maintenance requirements of the interior wall 110.

[0077] In one embodiment, to increase the connection stability between the clamping member 510 and the first full-span frame 300, the clamping member 510 has a ring structure, and an opening 512 is formed on one side of the clamping member 510. A fixing member 514 is threadedly connected to the opening 512, wherein the fixing member 514 is a bolt.

[0078] In one embodiment, to further improve the connection stability between the clamping member 510 and the first full-span frame 300 and increase the friction between the clamping member 510 and the first full-span frame 300, the inner wall of the clamping member 510 is provided with anti-slip texture 513.

[0079] In one embodiment, the roof slab of the current floor is provided with a reserved hole that communicates with the target floor; Following the step of using a sprinkler system to spray and cure the interior wall 110 and exterior wall 120, the method further includes: Step S600: Construct a second full-span scaffold on the target floor; Step S700: Transfer the sprinkler system of the current floor through the reserved holes in the roof slab and install it to the second full-span scaffold of the target floor. After the concrete curing of the shear wall (i.e., the inner wall 110) of the current floor is completed, and the full-span scaffold of the next floor main structure (i.e., the second full-span scaffold) is erected, the sprinkler pipes can be reused through the core tube elevator shaft, which improves the curing effect and saves construction materials.

[0080] Specifically, the method for controlling the sprinkler system 400 includes the following steps: Step E100: In response to the sprinkler control command sent by the user, determine the preset sprinkler parameters corresponding to the sprinkler control command; wherein, the preset sprinkler parameters include the preset interval time and the preset curing time; In this embodiment, when determining the preset interval time and preset curing time in the preset spraying time, it is necessary to obtain the height of the core tube shear wall, the flow rate of the water mist sprayed from the nozzles in the control system, the time from when the curing water is sprayed onto the core tube shear wall to when it flows to the corner of the corresponding floor, and the time for the core tube shear wall to absorb the curing water. For example, if the nozzles in the control system spray the curing water onto the core tube shear wall at a flow rate of 0.1 m³ / s, and the time from when it reaches the bottom of the corresponding floor is 10 minutes, and the wall's absorption time is half an hour, then the corresponding preset curing time is set to 10 minutes, and the preset interval time is set to half an hour.

[0081] It should be specifically and clearly stated that in this embodiment, the preset curing time is 8-12 minutes, and the preset interval time is set to 30-45 minutes.

[0082] Step E200: Obtain the current maintenance quality of the core tube shear wall; In this embodiment, when obtaining the current curing quality of the core tube shear wall, the following parameters may be obtained, but are not limited to: the concrete pouring and forming time corresponding to the current curing area of ​​the core tube shear wall, the time that curing has been completed, and the water absorption rate of the core tube shear wall.

[0083] Step E300: Based on the current maintenance quality, determine the target maintenance indicators for the core tube shear wall; among which, the target maintenance indicators include the number of times the sprinkler control command is executed; In this embodiment, when determining the target curing index of the core tube shear wall, it is possible to determine, but not limited to, the following parameters: the concrete mix ratio of the core tube shear wall, the curing time for the concrete with the mix ratio to reach the preset strength, etc.

[0084] Step E400: Control the sprinkler system 400 to cure the core tube shear wall according to the preset sprinkler parameters so that the curing quality of the core tube shear wall reaches the target curing index; wherein, the sprinkler system 400 is connected to the fire protection pipeline of the core tube shear wall.

[0085] In this embodiment, the curing time required for the concrete to reach its preset strength and the approximate amount of water needed to do so are first determined. Then, based on this information, the number of cycles required is determined, and this data is then incorporated into the control system. Finally, the control system executes the commands according to the incorporated data.

[0086] It should be specifically and clearly stated that, in the exemplary technology, for example, if the number of spray maintenance cycles is determined to be 100, then during execution, the control system can be controlled to perform 100 maintenance cycles.

[0087] By responding to the sprinkler control command sent by the user, the system determines the preset sprinkler parameters corresponding to the command, then obtains the current curing quality of the core tube shear wall, and then determines the target curing index of the core tube shear wall based on the current curing quality. Finally, the system controls the sprinkler system 400 to cure the core tube shear wall according to the preset sprinkler parameters, so that the curing quality of the core tube shear wall reaches the target curing index. In this way, the present invention, in specific implementation, by setting the target curing index based on the current curing quality and then controlling the sprinkler system 400 to cure the core tube shear wall according to the preset sprinkler parameters, can solve the defect in related technologies where the curing quality of the core tube shear wall cannot be accurately controlled due to the inability to determine the current curing quality. This invention, by setting preset spraying parameters consisting of preset intervals and preset curing times, and by controlling the preset curing times and preset intervals, ensures that the core tube shear wall remains in a consistently moist environment during implementation. This, in turn, ensures that the entire curing area of ​​the core tube shear wall is always under curing, thus solving the problem in related technologies where the curing quality of the core tube shear wall cannot be accurately controlled during the curing of high-rise core tube shear walls.

[0088] In some specific embodiments, the step of controlling the sprinkler system 400 to cure the core tube shear wall according to preset sprinkler parameters, so as to achieve the target curing quality of the core tube shear wall, includes: Step E410: Control the sprinkler system 400 to perform the first curing of the core tube shear wall according to the preset sprinkler parameters, and obtain the corresponding current curing quality; In this embodiment, in order to further improve the quality of maintenance and avoid waste, after the first maintenance, the maintenance effect is tested. If the maintenance effect meets the standard, the maintenance is stopped; if it does not meet the standard, the maintenance continues.

[0089] Step E420: Compare the current maintenance quality with the target maintenance indicators to determine whether the standards are met; Step E430: When the target is met, the maintenance is completed.

[0090] In some specific embodiments, after comparing the current maintenance quality with the target maintenance index to determine whether the target has been met, the method further includes: Step E440: If the standard is not met, return to the execution control sprinkler system 400 to perform the first curing of the core tube shear wall according to the preset sprinkler parameters, and obtain the corresponding current curing quality, until the standard is met, and end the curing.

[0091] In this embodiment, if the standard is not met, maintenance continues until the standard is met.

[0092] In some specific embodiments, the step of determining the target maintenance index of the core tube shear wall based on the current maintenance quality includes: Step E 310: Analyze and determine whether the current maintenance quality meets the target maintenance quality; Step E 320: When the current maintenance quality does not reach the target maintenance quality, the following steps are executed: control the sprinkler system 400 to maintain the core tube shear wall according to the preset sprinkler parameters based on the target maintenance index, so as to make the maintenance quality of the core tube shear wall reach the target maintenance quality.

[0093] In some specific embodiments, after analyzing and determining whether the current maintenance quality has reached the target maintenance quality, the method further includes: Step E330: When the current maintenance quality reaches the target maintenance quality, the sprinkler system 400 is removed.

[0094] In some specific embodiments, the sprinkler system 400 includes an actuator and a water pump communicatively connected to the actuator, the water pump being connected to a plurality of solenoid valves via pipelines; The steps of controlling the sprinkler system 400 to cure the core tube shear wall according to preset sprinkler parameters, so as to ensure that the curing quality of the core tube shear wall reaches the target curing index, include: The controller drives the water pump to maintain the core tube shear wall according to the preset spraying parameters, so as to achieve the target maintenance quality of the core tube shear wall.

[0095] In some specific embodiments, the step of determining preset spray parameters corresponding to a spray control command sent by a user includes: In response to the sprinkler control command sent by the user, the frequency of the sprinkler spray control time period is obtained to determine the preset sprinkler parameters corresponding to the sprinkler control command.

[0096] Steel-concrete composite structures are structures formed by encasing steel sections in reinforced concrete. When using steel-concrete composite structures in super high-rise buildings, walls, columns, and connecting beams are generally made of steel-concrete composites, while beams and slabs are made of reinforced concrete. The outer frame columns are connected to the core tube via reinforced concrete beams or steel-concrete composite beams. Since the beam reinforcement cannot be broken in the core tube shear walls, this type of super high-rise structure is not suitable for the construction process where the core tube precedes the outer frame; it requires integral pouring of the entire floor. After concrete pouring, the top slab can be cured by covering and watering, but the core tube shear walls cannot be effectively cured. Due to the large cross-sectional dimensions of the core tube shear walls, inadequate curing can lead to numerous temperature difference cracks and shrinkage cracks during the hydration process of the large-volume concrete, affecting the concrete's usability and durability. Therefore, researching curing methods for the core tube shear walls of super high-rise composite structures has significant economic and social benefits.

[0097] In the construction of super high-rise buildings with steel-concrete composite structures, the beams and slabs cannot be separated from the core tube and must be poured in one go. After the concrete is poured, the shear wall portion of the core tube cannot be effectively cured. Curing relies solely on water pipes applied to the wall surface, but the water remains on the shear wall surface for too short a time to meet the cooling requirements of the large volume of concrete. This invention employs a spray curing method, creating a continuous curing process that keeps the large volume of concrete in the core tube shear wall in a constantly moist state. This prevents cracks caused by drying shrinkage and temperature differences, reduces the carbonation value of the concrete, ensures its durability, and thus improves construction quality.

[0098] This invention is applicable to the maintenance of vertical structures in all building construction projects. The intelligent maintenance system for super high-rise buildings with combined structures uses the main water supply pipe as a sprinkler riser. Horizontal branch pipes extend from the riser, forming a sprinkler system 400 around the shear wall. The main sprinkler pipe is fixed to the top crossbar of the scaffolding. An automatic sprinkler control system is installed on the sprinkler riser. The system is set with sprinkler intervals and single sprinkler durations. When the sprinkler time is reached, the sprinkler system 400 automatically opens, eliminating the need for manual valve operation and achieving unattended operation. This achieves the intelligent sprinkler maintenance effect for the shear wall (internal wall 110).

[0099] In summary, the technical solution of this invention, by setting a first full-span frame 300 between the inner wall 110 and the outer wall 120, and connecting the spray system 400 to the first full-span frame 300 with a shrinkable component, enables the spray system 400 to adapt to different sizes of the inner wall 110, ensuring the spray curing effect of the spray system 400 on the inner wall 110. Using the spray system 400 to spray and cure the inner wall 110 prevents the large volume concrete from developing numerous temperature difference cracks and shrinkage cracks due to the heat of hydration during hydration, improving the applicability and durability of the concrete. Furthermore, by utilizing the fire water system, combining the pipes and equipment of the formal fire hydrant system with a small number of temporary pipes and equipment, the water demand of the spray system 400 is met while ensuring fire safety and temporary water supply during the construction of high-rise buildings. This reduces the investment in temporary equipment and materials needed to adapt to the curing requirements of the inner wall 110, thus lowering production costs.

[0100] It should be noted that the sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above embodiments are only optional embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made under the inventive concept of the present invention using the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are all included within the patent protection scope of the present invention.

Claims

1. A maintenance method for shear walls of super high-rise buildings with frame-core-tube composite structures, characterized in that, The maintenance methods include: The interior and exterior walls are poured on the current floor to form the core tube structure; Install a permanent fire main pipe and multiple booster pumps connected to the fire main pipe on the current floor; the distance between two adjacent booster pumps is 100m; The first full-span scaffold was erected between the inner and outer walls; A sprinkler system connected to the main fire hydrant is installed along the perimeter of the inner wall on the first full-span scaffold. Use a sprinkler system to spray and maintain the interior and exterior walls; The main fire protection pipe is installed close to the interior wall; Drainage holes are formed in the main fire-fighting pipeline; Connect the sprinkler system to the main fire hydrant at the drainage hole; The sprinkler system includes horizontal sprinkler pipes and vertical sprinkler pipes; Connect the spray riser to the drainage hole; Install a horizontal spray pipe at the top of the first full-span frame; the horizontal spray pipe is connected to the vertical spray pipe via a flexible metal hose; Install a sprinkler head branch pipe every 2m on the horizontal sprinkler pipe, and install sprinkler heads on the sprinkler head branch pipe; A horizontal spray pipe is installed at the top of the first full-span scaffold using a telescopic assembly. The telescopic assembly includes a clamping member, a sleeve, and at least two connecting rods. The clamping member is detachably clamped to the first full-span scaffold, and a first connecting block is provided on the outer edge of the clamping member. The sleeve is sleeved on the horizontal spray pipe, and a second connecting block is provided on the outer edge of the sleeve. The second connecting block is located on the same side as the first connecting block. One end of each connecting rod is rotatably connected to the second connecting block, and the other end of each connecting rod is threadedly connected to the first connecting block. The sleeve is movable in the direction of approaching or moving away from the clamping member, so that the horizontal spray pipe approaches or moves away from the inner wall. The steps for using a sprinkler system to spray and cure interior and exterior walls further include: In response to the sprinkler control command sent by the user, the preset sprinkler parameters corresponding to the sprinkler control command are determined. The preset sprinkler parameters include the preset interval time and the preset curing time. The preset curing time and the preset interval time are determined by: obtaining the height of the core tube shear wall, the flow rate of the sprinkler head in the sprinkler system, the time from when the curing water is sprayed onto the core tube shear wall to when the spray landing point flows to the corner of the corresponding floor, and the time when the core tube shear wall absorbs the curing water. Obtain the current curing quality of the core tube shear wall, including: obtaining at least one of the following: the concrete pouring time corresponding to the current curing zone of the core tube shear wall, the time that curing has been completed, and the water absorption rate of the core tube shear wall; Based on the current maintenance quality, the target maintenance indicators for the core tube shear wall are determined. The target maintenance indicators include the number of times the sprinkler control command is executed. The sprinkler system is controlled to perform the first curing of the core tube shear wall according to the preset sprinkler parameters, and the corresponding current curing quality is obtained; The current maintenance quality is compared with the target maintenance indicators to determine whether the standards are met; Maintenance ends when the target is met; If the standard is not met, the process returns to the step of controlling the sprinkler system to perform the first curing of the core tube shear wall according to the preset sprinkler parameters and obtain the corresponding current curing quality, until the standard is met.

2. The maintenance method for shear walls of super high-rise buildings with frame-core-tube composite structures as described in claim 1, characterized in that, The spray head branch pipe is connected to the spray horizontal pipe.

3. The maintenance method for shear walls of super high-rise buildings with frame-core-tube composite structures as described in claim 1, characterized in that, Prior to the step of installing the sprinkler system connected to the main fire duct on the first full-span scaffold along the perimeter of the interior wall, the maintenance method further includes: Cut the pipe to form multiple horizontal pipe sections; Two adjacent horizontal pipes are connected by a T-junction to form a spray horizontal pipe; the length of each horizontal pipe is 2m.

4. The maintenance method for shear walls of super high-rise buildings with frame-core tube composite structures as described in claim 3, characterized in that, Before the step of connecting two adjacent horizontal pipes with a T-joint to form a spray horizontal pipe, the maintenance method further includes: Clean all horizontal pipes; The target depth is obtained based on the depth of the T-joint. Mark the installation depth on the pipe body of each horizontal pipe according to the target depth.

5. The maintenance method for shear walls of super high-rise buildings with frame-core tube composite structures as described in claim 4, characterized in that, The steps for connecting two adjacent horizontal pipes using a T-joint to form a horizontal spray pipe include: Heat-melt tee pipe to obtain a tee ready for installation; Insert the horizontal pipe into the tee to be installed to the installation depth.

6. The maintenance method for shear walls of super high-rise buildings with frame-core tube composite structures as described in claim 1, characterized in that, The horizontal and vertical spray pipes are made of PPR.

7. The maintenance method for shear walls of super high-rise buildings with frame-core-tube composite structures as described in claim 1, characterized in that, The clamping component has a ring-shaped structure, with an opening on one side, and a fixing component is threadedly connected to the opening.

8. The maintenance method for shear walls of super high-rise buildings with frame-core tube composite structures as described in any one of claims 1 to 7, characterized in that, The roof slab of the current floor has a reserved opening that connects to the target floor; Following the step of using a sprinkler system to spray and cure interior and exterior walls, the curing method further includes: Construct a second full-span scaffold on the target floor; The sprinkler system on the current floor is transferred and installed on the second full-span frame of the target floor through the reserved holes in the roof slab.

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