Concrete shear wall support-free replacement reinforcing structure

Abstract

The invention discloses a concrete shear wall support-free replacement reinforcing structure, and relates to the technical field of shear wall construction, the concrete shear wall support-free replacement reinforcing structure comprises a wall body through hole formed in the upper portion of an original shear wall, a supporting cross beam is installed in the wall body through hole in a penetrating mode, and reinforcing supporting mechanisms are installed on the portions, located on the two sides of the original shear wall, of the supporting cross beam in a supporting mode; the reinforcing and supporting mechanism comprises a plurality of supporting mechanisms which are distributed side by side and are the same in structure, the adjacent supporting mechanisms are fixedly connected through transverse connecting mechanisms, and the connecting length of the transverse connecting mechanisms can be adjusted. Through the structural self-supporting design, the dependence on external equipment can be reduced, and the modularized supporting mechanism is matched with the adjustable connecting part to dynamically adapt to the requirements of different construction stages. A supporting system and a wall structure are combined, loads are transmitted through an original structure, a supporting-free replacement reinforcing system is formed, installation limitation of prefabricated parts can be avoided, and synchronous construction of new and old structures can be achieved.

Description

Technical Field

[0001] This invention relates to the field of shear wall construction technology, specifically to a support-free replacement reinforcement structure for concrete shear walls. Background Technology

[0002] Shear walls, also known as seismic walls, are currently widely used in high-rise buildings, and reinforced concrete shear wall structures are crucial structures that primarily bear horizontal and vertical loads. In construction projects, situations may arise where the load-bearing capacity of existing building shear walls is insufficient, requiring reinforcement. Common reinforcement methods include increasing the cross-section, bonding steel plates, and replacing concrete. Increasing the cross-section reduces usable building space; while bonding steel plates offers fast construction, the bonded steel plates have poor interoperability with the original wall structure, affecting the reinforcement effect; replacing concrete can fundamentally solve the problem of the shear wall to be demolished, but common replacement methods require high-quality temporary supports.

[0003] Patent CN210105373U discloses a support device for the replacement and reinforcement of shear walls in concrete buildings. While this device can perform shear wall replacement construction, it relies on precast beams and a large number of jacks, resulting in poor versatility, long equipment occupancy time, and high construction costs. Especially in large-scale shear wall replacement projects, the need for a large number of jacks to be occupied for extended periods leads to low equipment turnover efficiency, difficulty in construction organization, and poor economic efficiency. Furthermore, existing technologies struggle to flexibly adjust the support spacing based on the wall support strength and cannot achieve functional conversion of the support structure during the replacement of old and new shear walls. These problems hinder the development of shear wall replacement and reinforcement technology. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of high requirements for temporary support when using the replacement concrete reinforcement method for shear walls, and to propose a support-free replacement reinforcement structure for concrete shear walls.

[0005] The objective of this invention can be achieved through the following technical solutions: A supportless replacement and reinforcement structure for a concrete shear wall includes a through-hole in the upper part of the original shear wall, through which a support beam is installed. Reinforcement support mechanisms are installed on both sides of the original shear wall via the support beam. Each reinforcement support mechanism includes multiple identical support structures arranged side-by-side, with adjacent support structures fixedly connected by a horizontal connecting mechanism. The connection length of the horizontal connecting mechanism is adjustable. During the demolition of the original shear wall, the two sets of reinforcement support mechanisms are symmetrically arranged on both sides of the original shear wall, and the distribution distance of adjacent single support mechanisms is adjusted according to the different strengths of the wall support, so as to support the demolition of the original shear wall. When pouring a new shear wall after the original shear wall is demolished, the individual support mechanisms symmetrically arranged on both sides are pushed inward in sequence to meet each other. Then, the symmetrical individual support mechanisms are fixedly connected together. Finally, the support mechanisms on the same side are horizontally fixed to form the internal support of the new shear wall through the horizontal connection mechanism.

[0006] Preferably, the horizontal connecting mechanism includes an adjusting horizontal tube and an adjusting horizontal column. The adjusting horizontal tube is slidably sleeved on the outer periphery of the adjusting horizontal column. Both the adjusting horizontal tube and the adjusting horizontal column have several evenly distributed adjusting screw holes on one side, and the adjusting screw holes are located on the end face of the adjusting horizontal tube and the adjusting horizontal column near the wall. Both the adjusting horizontal tube and the adjusting horizontal column have a connecting seat plate fixedly installed on the opposite side for fixed connection with the support mechanism.

[0007] Preferably, the connecting plate is an L-shaped plate, and the inner width of one end connected to the adjusting column or adjusting tube is equal to the width of the support column, while the inner width of the other end is half the width of the support column. Both ends of the connecting plate are provided with mounting holes, and the mounting holes on different end faces are staggered in the height direction. This prevents the bolts from interfering with each other during installation when the connecting plate is fixed to the support mechanism with bolts. Furthermore, the staggered distribution of threaded holes provides more installation positions and improves the stability of the installation.

[0008] Preferably, the support mechanism includes a support frame as the main support body, the support frame includes a T-shaped base installed on the ground, a support outer column is fixedly installed on the side of the T-shaped base away from the wall, the upper end of the support outer column is provided with a crossbeam groove that cooperates with the support crossbeam, and the side wall of the support outer column is provided with a threaded hole for installing the cross link mechanism.

[0009] Preferably, a plurality of horizontally distributed horizontal support tubes are fixedly installed horizontally on the side of the supporting outer column near the wall. The horizontal support tubes are used to press against the wall along the longitudinal direction. Vertical columns are fixedly installed on the upper end of the T-shaped base and the upper end of the horizontal support tubes near the wall. The upper end of the top horizontal support tube is not equipped with a vertical column, and the upper end of the top horizontal support tube is flush with the bottom of the groove of the crossbeam. The top horizontal support tube is used to support the crossbeam. Rotary supports for vertically supporting the horizontal support tubes are installed on the vertical columns.

[0010] Preferably, the upper end of the vertical support column is provided with a connecting pin, the rotating support is rotatably installed at the connecting pin, and the rotating support is fixedly provided with a reinforcing support tube along its length. When the rotating support rotates to the vertical state, the reinforcing support tube is in the vertical state and presses against the wall surface of the original shear wall. When the rotating support rotates to the horizontal state, one end of the reinforcing support tube presses against the end face of the horizontal support tube, and the other end of the reinforcing support tube abuts against the symmetrical reinforcing support tube.

[0011] Preferably, the reinforcing support tube is provided with a locking mechanism. When two sets of symmetrical reinforcing support tubes abut each other, the locking mechanism fixes the two sets of reinforcing support tubes together, thereby fixing the reinforcing support mechanism longitudinally and forming a stable internal support. The vertical support column is provided with a support column adjustment hole through which the adjustment handle passes to control the locking mechanism.

[0012] Preferably, the locking mechanism includes a limiting baffle fixed inside a set of reinforced support tubes and an adjusting lock disposed inside symmetrical reinforced support tubes; the limiting baffle is disposed inside the reinforced support tube near the wall and has a gap for the adjusting lock to pass through; the adjusting lock includes a fixed base plate fixed inside the reinforced support tube, an adjusting pin rod movably connected through the fixed base plate, one end of the adjusting pin rod having a hexagonal adjusting groove, and the other end of the sliding spring having a limiting block that cooperates with the limiting baffle; a tension spring is sleeved on the outer periphery of the adjusting pin rod, the tension spring providing elastic tension to the limiting block; when the limiting block passes through the limiting baffle and rotates to form a cross-shaped limiting position, the elastic tension of the tension spring makes the limiting block and the limiting baffle fit tightly together, ensuring the stability of the locking limit.

[0013] Preferably, a linkage support is installed on the transverse support pipe. The linkage support is used to abut against the symmetrical linkage support during the pouring of the new shear wall as a longitudinal support for the reinforcement support mechanism.

[0014] Preferably, the linkage support includes a longitudinal slide rod slidably disposed inside the transverse support tube. A slide rod spring is fixedly connected to the end face of the longitudinal slide rod inside the transverse support tube. The slide rod spring is fixedly connected to the bottom of its groove. A support pin is provided at the bottom of the slide rod spring. A linkage support rod rotatably connected to the rotational support and rotatably connected to the support pin is also provided. When the rotational support is in a vertical state, the linkage support rod drives the longitudinal slide rod to slide into the transverse support tube. The longitudinal slide rod strengthens the transverse support tube, thereby improving the overall support strength of the reinforcement support mechanism. The end face of the rod is flush with the end face of the reinforcing support tube and abuts against the original shear wall surface. At this time, the sliding rod spring is in a compressed state, providing a reaction force for the reinforcing support mechanism and forming a tensile force with the support beam, ensuring the stability of the reinforcing support mechanism against the wall surface. When the rotating support is in a horizontal state, the longitudinal sliding rod is driven to slide outward of the transverse support tube through the linkage strut, abutting against the end of the symmetrical longitudinal sliding rod, together forming the longitudinal linkage support of the reinforcing support mechanism. At this time, the sliding rod spring is in a stretched state, forming a tensile force with the locking mechanism inside the reinforcing support tube, ensuring the locking mechanism is stable.

[0015] The beneficial effects of this invention are: Self-supporting structural design reduces reliance on external equipment, while modular support mechanisms with adjustable connecting components enable dynamic adaptation to different construction stages. By integrating the support system with the wall structure and utilizing the original structure to transfer loads, a support-free replacement reinforcement system is formed. This avoids the limitations of prefabricated component installation and allows for simultaneous construction of the old and new structures.

[0016] This invention achieves the construction requirement of eliminating external supports during shear wall replacement. The integrated design of the support system and wall structure allows for simultaneous construction of the old and new structures. The modular support mechanism adapts to different working conditions through spacing adjustments, reducing material waste. The adjustable nature of the horizontal connecting mechanism simplifies the support system conversion steps and shortens the construction cycle. The self-supporting internal support structure also functions as a formwork during the pouring stage, avoiding secondary dismantling of the support structure and improving construction efficiency and safety. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the original shear wall removal support structure of the present invention; Figure 2 This is a schematic diagram of the structure of the new shear wall casting support of the present invention; Figure 3 This is a schematic diagram of the planar structure of the new shear wall casting of the present invention; Figure 4 This is the present invention. Figure 3 Schematic diagram of the cross-sectional structure along the AA direction; Figure 5 This is the present invention. Figure 4 Enlarged structural diagram at point C; Figure 6 This is a three-dimensional structural diagram of the support frame of the present invention; Figure 7 This is an isometric structural diagram of the support frame of the present invention; Figure 8 This is a schematic diagram of the structure of a single support mechanism of the present invention; Figure 9 This is the present invention. Figure 8 Schematic diagram of the cross-sectional structure in the middle BB direction; Figure 10 This is the present invention. Figure 9 Enlarged structural diagram at point D; Figure 11 This is a schematic diagram of the cross-connection mechanism of the present invention.

[0019] In the diagram: 100, original shear wall; 200, reinforced support mechanism; 300, new shear wall; 1, support beam; 2, support frame; 21, support column; 22, T-shaped base; 23, vertical support column; 231, support column adjustment hole; 232, connecting pin; 24, transverse support tube; 25, beam groove; 3, transverse connection mechanism; 31, adjusting horizontal tube; 32, adjusting horizontal column; 33, adjusting screw hole; 34, connecting seat plate; 35, seat plate mounting hole; 4, rotating support; 41, linkage strut; 5, reinforced support tube; 51, limiting baffle; 52, fixed seat plate; 53, adjusting pin; 54, tension spring; 55, limiting block; 6, linkage support; 61, longitudinal slide bar; 62, slide bar spring; 63, strut pin. Detailed Implementation

[0020] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In existing technologies, the reinforcement of reinforced concrete shear walls often employs methods such as increasing the cross-section, bonding steel plates, or replacing concrete. Traditional replacement methods rely on a large number of precast components and temporary support structures, requiring prolonged use of equipment such as jacks during construction, thus extending the construction period. The fixed installation method of precast beams has poor versatility, making it difficult to adapt to different wall structures, and the support system lacks flexibility in adjustment, affecting construction efficiency and safety.

[0022] To address the aforementioned issues, existing technologies combining load-bearing steel columns with prefabricated components suffer from low turnover efficiency and high construction costs. To overcome this limitation, the inventors discovered that a self-supporting structural design can reduce reliance on external equipment, and a modular support mechanism with adjustable connecting components can dynamically adapt to the needs of different construction stages. By integrating the support system with the wall structure and utilizing the original structure to transfer loads, a support-free replacement reinforcement system is formed. This avoids the limitations of prefabricated component installation and allows for simultaneous construction of the old and new structures.

[0023] Please see Figures 1-11As shown, this invention is a reinforced concrete shear wall without support replacement structure. It includes a through-hole in the upper part of the original shear wall 100, through which a supporting beam 1 is installed. Reinforcement support mechanisms 200 are installed on both sides of the original shear wall 100, supported by the supporting beam 1. Each reinforcement support mechanism 200 includes multiple identical support structures arranged side-by-side, and adjacent support structures are fixedly connected by a horizontal connecting mechanism 3. The connection length of the horizontal connecting mechanism 3 is adjustable. When the original shear wall 100 is demolished, the two sets of reinforcement support mechanisms 200 are symmetrically arranged on both sides of the original shear wall 100, and the distribution distance between adjacent individual support structures is adjusted according to the different strengths of the wall support. When a new shear wall 300 is poured after the original shear wall 100 is demolished, the symmetrically arranged individual support structures on both sides are pushed inwards sequentially to abut and be fixedly connected, forming the internal support of the new shear wall 300 through the horizontal fixing mechanism 3.

[0024] Specifically, during the demolition of the original shear wall 100, the supporting beam 1 forms a mid-span load-bearing structure through a through-hole in the wall, distributing the upper load to the reinforcing support mechanisms 200 on both sides. The spacing of the two side support mechanisms is adjusted according to the local strength differences of the wall, with dense support units arranged in high-stress areas and increased unit spacing in low-stress areas, forming a dynamic support distribution. During the pouring of the new shear wall 300, the symmetrical support units are pushed inward to the predetermined position, and the spacing between adjacent units is locked by the transverse connecting mechanism 3, forming a closed support frame as a pouring template for the new wall. The supporting beam 1 and the reinforcing support mechanism 200 together constitute a self-supporting system, allowing the replacement construction to be completed without external temporary support.

[0025] Through the above technical solutions, this application achieves the construction requirement of eliminating external supports during shear wall replacement. The integrated design of the support system and the wall structure allows for simultaneous construction of the old and new structures. The modular support mechanism adapts to different working conditions through spacing adjustments, reducing material waste. The adjustable characteristics of the horizontal connecting mechanism 3 simplify the support system conversion steps and shorten the construction cycle. The self-supporting internal support structure also functions as a formwork during the pouring stage, avoiding secondary dismantling of the support structure and improving construction efficiency and safety.

[0026] Please see Figure 1 , Figure 2 and Figure 11 As shown, this application further proposes a horizontal connecting mechanism 3 including an adjusting horizontal tube 31 and an adjusting horizontal column 32. The adjusting horizontal tube 31 is slidably sleeved on the outer periphery of the adjusting horizontal column 32. A plurality of evenly distributed adjusting screw holes 33 are provided on one side of both the adjusting horizontal tube 31 and the adjusting horizontal column 32, and the adjusting screw holes 33 are provided on the end face of the adjusting horizontal tube 31 and the adjusting horizontal column 32 near the wall. A connecting seat plate 34 for fixed connection with the support mechanism is fixedly provided on the opposite side of both the adjusting horizontal tube 31 and the adjusting horizontal column 32.

[0027] Specifically, the overall length of the horizontal connecting mechanism 3 can be infinitely adjusted by adjusting the sliding sleeve structure between the horizontal tube 31 and the adjusting column 32. When it is necessary to adjust the spacing of the support mechanism, the horizontal tube 31 is slidably adjusted along the axial direction to the target position, and then bolts are inserted into the corresponding adjusting screw holes 33 for fixing. The adjusting screw holes 33 are concentrated on the side face near the wall, which ensures that the operator can complete all bolt tightening operations on the same side, and avoids the reduction of structural strength caused by multiple openings. The connecting seat plate 34 adopts a split design, which can maintain an independent state from the support mechanism during the adjustment process. After the length adjustment is completed, it is installed by bolting to the preset hole positions of the support mechanism column to achieve modular assembly.

[0028] Please see Figure 1 and Figure 11 As shown, this application further proposes a supportless replacement reinforcement structure for concrete shear walls, wherein the connecting seat plate 34 is an L-shaped seat plate, and the inner width of one end connected to the adjusting horizontal column 32 or adjusting horizontal pipe 31 is equal to the width of the column of the support mechanism, and the inner width of the other end is half the width of the column of the support mechanism. Both ends of the connecting seat plate 34 are provided with seat plate mounting holes 35, and the seat plate mounting holes 35 on different end faces are staggered in the height direction.

[0029] Specifically, the inner width of one end of the L-shaped seat plate is the same as that of the support structure column, ensuring a complete fit of the contact surface. The inner width of the other end is halved to form a stepped contact surface, adapting to the installation requirements of different support structures. The mounting holes 35 of the seat plate are staggered in the vertical direction, so that the bolt installation positions on different ends of the same connecting seat plate 34 are staggered in the vertical direction, eliminating the overlap of the installation trajectories of adjacent bolts. When the connecting seat plate 34 is fixed to the support structure with bolts, the staggered mounting holes allow construction personnel to select fixing points at different heights according to site conditions, avoiding bolt collisions and enhancing connection rigidity through multi-dimensional fixing.

[0030] Please see Figure 6 and Figure 9 As shown, this application further proposes a supportless replacement reinforcement structure for concrete shear walls. The support mechanism includes a support frame 2 as the main support body. The support frame 2 includes a T-shaped base 22 installed on the ground. A support outer column 21 is fixedly installed on the side of the T-shaped base 22 away from the wall. The upper end of the support outer column 21 is provided with a crossbeam groove 25 that cooperates with the support crossbeam 1. The side wall of the support outer column 21 is provided with threaded holes for installing the cross-connecting mechanism 3.

[0031] Specifically, the support mechanism forms a stable connection with the ground through the T-shaped base 22, and the supporting outer column 21, as a vertical load-bearing component, transfers the load of the supporting beam 1 to the ground. The geometric fit between the beam groove 25 and the supporting beam 1 retains the load-bearing advantages of traditional precast beams while overcoming the limitations of fixed precast component dimensions through a detachable structural design. The threaded hole array design on the sidewall of the supporting outer column 21 allows the horizontal connecting mechanism 3 to be installed in multiple preset positions, and the spacing between adjacent support mechanisms can be flexibly adjusted according to the wall support strength requirements during construction. For example, during the demolition phase, the support density can be reduced by increasing the spacing between support mechanisms; during the pouring phase, the spacing is reduced to form a dense support network. This modular connection method enables the support mechanism to adapt to the needs of shear wall projects with different cross-sectional dimensions.

[0032] This application effectively solves the problem of insufficient construction adaptability caused by the poor versatility of precast beams. The threaded hole design on the side wall of the supporting outer column 21 allows the spacing of the support structure to be dynamically adjusted according to actual working conditions, providing graded support strength control during the demolition stage and forming a dense support network during the pouring stage. The way the beam groove 25 matches the supporting beam 1 retains the load-bearing advantages of traditional structures while avoiding the construction limitations caused by the fixed size of precast components, realizing the rapid deployment and dynamic adjustment of the support structure during shear wall replacement.

[0033] Please see Figure 6 and Figure 7 As shown, this application further proposes to horizontally fix several horizontal support pipes 24 evenly distributed vertically on the side of the supporting outer column 21 near the wall. The horizontal support pipes 24 are used to press against the wall along the longitudinal direction. Vertical support columns 23 are fixedly installed on the upper end of the T-shaped base 22 and the upper end of the horizontal support pipes 24 near the wall. The upper end of the top horizontal support pipe 24 is not installed with a vertical support column 23, and the upper end of the top horizontal support pipe 24 is flush with the bottom of the groove of the crossbeam groove 25. The top horizontal support pipe 24 is used to support the crossbeam 1. Rotary supports 4 for vertically supporting the horizontal support pipes 24 are installed on the vertical support column 23.

[0034] Specifically, during the wall demolition phase, the horizontal support pipe 24 transfers the load to the T-shaped base 22 through longitudinal compression. The vertical column 23 and the horizontal support pipe 24 form a double support system, effectively resisting the bending moment caused by the horizontal load. The elevation matching design of the top horizontal support pipe 24 and the crossbeam groove 25 allows the load of the supporting crossbeam 1 to be directly transferred to the supporting outer column 21, avoiding stress concentration caused by misalignment between the crossbeam and the support components in traditional structures. When the rotating support 4 is in a vertical state, it forms a vertical support system with the horizontal support pipe 24, enhancing the reinforcement effect on the original wall. When the rotating support 4 is rotated to a horizontal state, it connects with the adjacent support mechanism to form a horizontally stable structure, meeting the internal support requirements during the pouring of the new wall.

[0035] This application effectively resolves the contradiction that traditional support structures cannot simultaneously meet the different support needs during demolition and reconstruction phases. The frame system formed by the horizontal support tube 24 and the vertical column 23 significantly improves the bending stiffness of the support structure. The adjustable characteristics of the swivel support 4 enable flexible conversion of the support direction, and the cooperative design of the top horizontal support tube 24 and the crossbeam groove 25 ensures the continuity of the load transfer path. While ensuring support stability, this structure simplifies the construction process and reduces equipment investment costs through component function reuse.

[0036] Please see Figure 8 and Figure 10 As shown, this application further proposes that the upper end of the vertical support 23 is provided with a connecting pin 232, the rotating support 4 is rotatably installed at the connecting pin 232, and the rotating support 4 is fixedly provided with a reinforcing support pipe 5 along the length direction. When the rotating support 4 rotates to the vertical state, the reinforcing support pipe 5 is in the vertical state and presses against the wall surface of the original shear wall 100. When the rotating support 4 rotates to the horizontal state, one end of the reinforcing support pipe 5 presses against the end face of the horizontal support pipe 24, and the other end of the reinforcing support pipe 5 abuts against the symmetrical reinforcing support pipe 5.

[0037] Specifically, during the demolition of the original shear wall 100, the rotating support 4 is adjusted to a vertical position. At this time, the reinforced support pipe 5 is perpendicular to the wall surface and in direct contact with the original structure, forming an active support force transmission path and effectively dispersing the wall load. During the pouring of the new shear wall 300, the rotating support 4 is rotated to a horizontal position. One end of the reinforced support pipe 5 abuts against the end face of the transverse support pipe 24, and the other end forms a bridging structure with the symmetrically arranged reinforced support pipes 5, constructing a continuous support system. This design achieves the switching between two support modes through the state transformation of a single component, without the need to disassemble or replace the support device. The support force transmission path is distributed longitudinally in the vertical state and extends laterally in the horizontal state.

[0038] Compared with existing technologies, traditional replacement reinforcement methods require the installation of fixed load-bearing steel columns and rely on jacks for continuous support, resulting in high equipment occupancy and an inability to adapt to the support needs of different construction stages. This solution uses a rotatable reinforcement support pipe structure to directly form vertical support during the demolition stage and automatically convert it into lateral connection support during the pouring stage, avoiding repeated disassembly and assembly of temporary support devices and eliminating long-term dependence on jacks.

[0039] This application enables dynamic adjustment of the support structure at different construction stages, providing stable vertical support when demolishing the original wall and constructing a symmetrical and balanced lateral support system when pouring a new wall. The state switching of the reinforcing support pipe 5 automatically optimizes the support force transmission path as the construction progresses, reducing the interruption of procedures caused by support mode switching in traditional methods, effectively balancing the lateral pressure generated by the newly poured concrete, and improving the stability and construction efficiency of the overall support system.

[0040] Please see Figure 4 and Figure 5 As shown, this application further proposes to set a locking mechanism inside the reinforcing support tube 5. When two sets of symmetrical reinforcing support tubes 5 abut each other, the locking mechanism fixes them together to form a longitudinal internal support. At the same time, a support adjustment hole 231 is set on the vertical support 23 to adjust the locking mechanism.

[0041] Specifically, when the ends of the symmetrical reinforcing support pipes 5 contact, the operator inserts a tool through the support adjustment hole 231 to drive the adjusting pin 53, causing the limiting block 55 to extend. After passing through the gap of the limiting baffle 51, the limiting block 55 rotates to form a cross-shaped limit. The tension spring 54 forces the limiting block 55 to fit tightly against the limiting baffle 51, completing the mechanical locking. This process does not rely on external support equipment; longitudinal fixation is achieved solely through the self-locking action of the internal mechanism. After the locking is completed, the reinforcing support pipe 5 and the symmetrical pipes form a rigid connection, replacing the continuous support function of the jack and ensuring the stability of the support system during the pouring process.

[0042] Through the above technical solutions, this application achieves rapid locking of the symmetrically reinforced support pipe 5, eliminates the operation steps of manually tightening bolts, and shortens the construction cycle; by combining mechanical self-locking with elastic tension, the stability of the longitudinal connection is ensured, and the support structure is prevented from loosening during the pouring process; the adjustable hole 231 of the support column is used to realize the controllable adjustment of the locking state, solves the problem of difficult maintenance of concealed mechanisms, and reduces construction safety risks.

[0043] Please see Figure 4 and Figure 5As shown, this application further proposes a locking mechanism including a limiting baffle 51 fixed inside a set of reinforcing support tubes 5 and an adjusting lock disposed inside the symmetrical reinforcing support tubes 5. The limiting baffle 51 is disposed inside the reinforcing support tube 5 on the side close to the wall and has a gap for the adjusting lock to pass through. The adjusting lock includes a fixed base plate 52 fixedly disposed inside the reinforcing support tube 5. An adjusting pin 53 is movably connected through the fixed base plate 52. One end of the adjusting pin 53 is provided with a hexagonal adjusting groove. The other end of the slide spring 62 is fixedly provided with a limiting block 55 that cooperates with the limiting baffle 51. A tension spring 54 is sleeved on the outer periphery of the adjusting pin 53. The tension spring 54 is used to provide elastic tension to the limiting block 55. When the limiting block 55 passes through the limiting baffle 51 and rotates to form a cross-shaped limiting position, the elastic tension of the tension spring 54 makes the limiting block 55 fit tightly against the limiting baffle 51.

[0044] Specifically, when the symmetrically reinforced support tubes 5 abut against each other, the adjusting pin 53 is pushed through the gap in the limiting baffle 51. Then, by rotating the adjusting pin 53 with a hex wrench, the limiting block 55 and the limiting baffle 51 form an orthogonal engagement. At this time, the preload of the tension spring 54 forces the limiting block 55 to press tightly against the limiting baffle 51, eliminating the gap caused by structural vibration. The cross-shaped limiting structure resists longitudinal shear force through the orthogonal contact surface, while the fixed base plate 52 ensures the linear movement trajectory of the adjusting pin 53. This locking process requires no external power equipment and can be completed solely through mechanical interlocking and elastic preload.

[0045] This application effectively solves the problem of loosening caused by vibration during the longitudinal locking of the reinforcing support pipe 5. The cross-shaped limiting structure of the limiting baffle 51 and the adjusting lock can resist multi-directional shear forces, and the continuous pre-tightening force of the tension spring 54 compensates for the gaps caused by structural deformation. While ensuring ease of operation, this locking mechanism significantly improves the anti-disturbance capability of the internal support system during the pouring of the new shear wall 300, avoiding the risk of support instability caused by locking failure.

[0046] Please see Figure 4 and Figure 5 As shown, this application further proposes that a linkage support 6 is installed on the transverse support pipe 24. The linkage support 6 is used to abut against the symmetrical linkage support 6 as the longitudinal support of the reinforcement support mechanism 200 when the new shear wall 300 is poured.

[0047] Specifically, when the rotary support 4 is in a vertical state, the linkage strut 41 drives the longitudinal slide bar 61 to slide into the transverse support tube 24. At this time, the slide bar spring 62 is compressed, and the end face of the longitudinal slide bar 61 and the end face of the reinforced support tube 5 jointly abut against the original shear wall 100. The reaction force of the slide bar spring 62 and the support beam 1 form a tensile force, which enhances the abutment stability between the reinforced support mechanism 200 and the wall. When the rotary support 4 switches to a horizontal state, the linkage strut 41 drives the longitudinal slide bar 61 to slide outward, so that the ends of the symmetrically arranged longitudinal slide bars 61 abut against each other, forming a longitudinal connecting rod support that runs through the reinforced support mechanisms 200 on both sides. At this time, the slide bar spring 62 is in a stretched state, and generates a tensile force through the synergistic action with the locking mechanism to ensure the rigid connection of the longitudinal connecting rod support.

[0048] Through the above technical solution, this application solves the problem of insufficient longitudinal support during the pouring of the new shear wall 300. Through the sliding and elastic action of the linkage support 6, dynamic support can be provided during the demolition stage, and a rigid connection can be formed during the pouring stage, reducing the reliance on jacks and lowering construction costs. At the same time, through the synergistic effect of mechanical linkage and elastic elements, the stability and reliability of the support structure at different construction stages are ensured.

[0049] This application further proposes a linkage support 6 including a longitudinal slide rod 61 slidably disposed inside the transverse support tube 24. A slide rod spring 62 is fixedly connected to the end face of the longitudinal slide rod 61 located inside the transverse support tube 24. The slide rod spring 62 is fixedly connected to the bottom of the groove of the slide rod spring 62. A support pin 63 is provided at the bottom of the slide rod spring 62. A linkage support rod 41 rotatably connected to the support pin 63 is rotatably connected to the rotary support 4. When the rotary support 4 is in a vertical state, the linkage support rod 41 drives the longitudinal slide rod 61 to slide into the transverse support tube 24. The end face of the longitudinal slide rod 61 is flush with the end face of the reinforced support tube 5 and abuts against the original shear wall 100 wall surface. At this time, the slide rod spring 62 is in a compressed state. When the rotary support 4 is in a horizontal state, the linkage support rod 41 drives the longitudinal slide rod 61 to slide outward from the transverse support tube 24 and abut against the symmetrical ends of the longitudinal slide rod 61. At this time, the slide rod spring 62 is in a stretched state.

[0050] Specifically, when the rotary support 4 switches to the vertical position, the linkage strut 41 drives the longitudinal slide bar 61 to retract inward into the transverse support tube 24. The slide bar spring 62 is compressed, generating a reverse thrust, so that the end face of the longitudinal slide bar 61 forms a rigid contact with the original shear wall 100. At this time, a two-way force balance is formed between the reinforcement support mechanism 200 and the support beam 1, avoiding longitudinal displacement during dismantling. When the rotary support 4 switches to the horizontal position, the linkage strut 41 pushes the longitudinal slide bar 61 outward, and the slide bar spring 62 turns into a stretched state, generating continuous tension, so that the ends of the symmetrically arranged longitudinal slide bars 61 are tightly connected. At the same time, the tensile force and the locking force of the locking mechanism are superimposed to form a compound locking force, ensuring the stability of the longitudinal support when the new shear wall 300 is poured.

[0051] This application effectively solves the construction cost problem caused by the long-term occupation of jacks. By using the telescopic function of the linkage support 6, the support state can be automatically switched during the replacement of old and new walls. The elastic deformation characteristics of the slide spring 62 provide continuous force, and the locking mechanism forms a composite locking force, which significantly improves the longitudinal support stability and avoids the problem of complicated installation of prefabricated components in traditional solutions.

[0052] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A reinforced concrete shear wall without support replacement structure, comprising a wall through-hole opened in the upper part of the original shear wall (100), wherein a supporting beam (1) is installed through the wall through-hole, and a reinforcement support mechanism (200) is installed on both sides of the original shear wall (100) supported by the supporting beam (1); characterized in that, The reinforcement support mechanism (200) includes multiple support mechanisms with the same structure arranged side by side, and adjacent support mechanisms are fixedly connected by a horizontal connecting mechanism (3), the connection length of which is adjustable; When the original shear wall (100) is demolished, the two sets of the reinforcement support mechanism (200) are symmetrically set on the two sides of the original shear wall (100), and the distribution distance of the adjacent single support mechanism is adjusted according to the different strengths of the wall support, so as to support the demolition of the original shear wall (100). When the original shear wall (100) is demolished and the new shear wall (300) is poured, the individual support mechanisms set symmetrically on both sides are pushed inward in sequence to meet each other. Then, the individual support mechanisms set symmetrically are fixed together. Finally, the support mechanisms on the same side are horizontally fixed to form the internal support for the pouring of the new shear wall (300) through the horizontal connecting mechanism (3).

2. The unsupported replacement reinforcement structure for concrete shear walls according to claim 1, characterized in that, The horizontal connecting mechanism (3) includes an adjusting horizontal tube (31) and an adjusting horizontal column (32). The adjusting horizontal tube (31) is slidably sleeved on the outer periphery of the adjusting horizontal column (32). Both the adjusting horizontal tube (31) and the adjusting horizontal column (32) have several evenly distributed adjusting screw holes (33) on one side. Both the adjusting horizontal tube (31) and the adjusting horizontal column (32) have a connecting seat plate (34) fixedly installed on the opposite side for fixed connection with the support mechanism.

3. The unsupported replacement reinforcement structure for concrete shear walls according to claim 2, characterized in that, The connecting seat plate (34) is an L-shaped seat plate, and both ends of the connecting seat plate (34) are provided with seat plate mounting holes (35), and the seat plate mounting holes (35) on different end faces are staggered in the height direction.

4. The unsupported replacement reinforcement structure for concrete shear walls according to claim 1, characterized in that, The support mechanism includes a support frame (2) as the main support body. The support frame (2) includes a T-shaped base (22) installed on the ground. A support column (21) is fixedly installed on the side of the T-shaped base (22) away from the wall. A crossbeam groove (25) that cooperates with the support crossbeam (1) is provided at the upper end of the support column (21). A threaded hole for installing the cross link mechanism (3) is provided on the side wall of the support column (21).

5. A reinforced concrete shear wall unsupported replacement structure according to claim 4, characterized in that, The outer support column (21) is horizontally fixed with several horizontal support tubes (24) evenly distributed vertically on the side near the wall. The horizontal support tubes (24) are used to press against the wall along the longitudinal direction. The upper end of the T-shaped base (22) and the upper end of the horizontal support tubes (24) near the wall are both fixed with vertical support columns (23). The vertical support columns (23) are equipped with rotating supports (4) for vertically supporting the horizontal support tubes (24).

6. The unsupported replacement reinforcement structure for concrete shear walls according to claim 1, characterized in that, The upper end of the vertical support (23) is provided with a connecting pin (232). The rotating support (4) is rotatably installed at the connecting pin (232). The rotating support (4) is fixedly provided with a reinforcing support pipe (5) along its length. When the rotating support (4) rotates to the vertical state, the reinforcing support pipe (5) is in the vertical state and presses against the wall surface of the original shear wall (100). When the rotating support (4) rotates to the horizontal state, one end of the reinforcing support pipe (5) presses against the end face of the horizontal support pipe (24), and the other end of the reinforcing support pipe (5) abuts against the symmetrical reinforcing support pipe (5).

7. A reinforced concrete shear wall unsupported replacement structure according to claim 6, characterized in that, The reinforcing support tube (5) is provided with a locking mechanism. When two sets of symmetrical reinforcing support tubes (5) abut each other, the locking mechanism will fix the two sets of reinforcing support tubes (5) together, thereby fixing the reinforcing support mechanism (200) longitudinally and forming a stable internal support. The vertical support column (23) is provided with a support adjustment hole (231) for adjusting the handle to pass through and control the locking mechanism.

8. A reinforced concrete shear wall unsupported replacement structure according to claim 7, characterized in that, The locking mechanism includes a limiting baffle (51) fixed inside a set of reinforced support tubes (5) and an adjusting lock disposed inside the symmetrical reinforced support tubes (5); the limiting baffle (51) is disposed inside the reinforced support tube (5) on the side close to the wall and has a gap for the adjusting lock to pass through; the adjusting lock includes a fixed seat plate (52) fixed inside the reinforced support tube (5); an adjusting pin (53) is movably connected through the fixed seat plate (52); one end of the adjusting pin (53) is provided with a hexagonal adjusting groove; the other end of the slide spring (62) is fixedly provided with a limiting block (55) that cooperates with the limiting baffle (51); and a tension spring (54) is sleeved on the outer periphery of the adjusting pin (53).

9. A reinforced concrete shear wall unsupported replacement structure according to claim 7, characterized in that, The horizontal support pipe (24) is equipped with a linkage support (6), which is used to abut against the symmetrical linkage support (6) as the longitudinal support of the reinforcement support mechanism (200) when the new shear wall (300) is poured.

10. A reinforced concrete shear wall unsupported replacement structure according to claim 9, characterized in that, The linkage support (6) includes a longitudinal slide rod (61) slidably disposed inside the transverse support tube (24). A slide rod spring (62) is fixedly connected to the end face of the longitudinal slide rod (61) located inside the transverse support tube (24). The slide rod spring (62) is fixedly connected to the bottom of the groove of the slide rod spring (62). A support pin (63) is provided at the bottom of the slide rod spring (62). A linkage support rod (41) rotatably connected to the rotation support (4) is rotatably connected to the support pin (63).

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