An integrated forming system and construction method for new structural wall panels between existing buildings

Abstract

The application belongs to the technical field of building engineering, and particularly relates to a new structure wallboard integrated forming system and construction method between existing buildings, which comprises a lifting system fixed above the vertical direction of the existing building, a guide lifting system fixed on the side of the vertical structure of the existing building, a steel formwork system and a counter support system, wherein the lifting system and the guide lifting system are respectively fixedly connected with the counter support system and used for vertically lifting the counter support system; the steel formwork system comprises a wall formwork and a plate formwork, the wall formwork and the plate formwork are detachably connected with the counter support system, and the plate formwork and the steel formwork can be synchronously poured. The application has the beneficial effects that the counter support frame is adopted to realize the synchronous construction of the wallboard, the workload of the traditional post-embedded work of the pull-type formwork support is avoided, the whole system is light and efficient, the construction progress is fast, and the labor is saved.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and in particular relates to an integrated forming system and construction method for new structural wall panels between existing buildings. Background Technology

[0002] As people's demands for building functionality increase, more and more renovation and expansion projects are emerging between existing buildings. New structures may have ground-level traffic access on the ground floor, or elevated walkways built at intervals, leading to problems such as excessively high formwork erection heights or cantilevered casting during the structural pouring process. Adopting a lift-type integrated wall panel forming method can reduce interference with road traffic, while also reducing the need for temporary supports and the consumption of labor and materials.

[0003] Existing lifting formwork systems are mostly applied to cylindrical structures, which need to be customized according to the size of the cylindrical shear wall. They cannot realize the transformation of walls of multiple sizes, nor can they realize the synchronous construction of walls and slabs.

[0004] Furthermore, for shear wall formwork, wooden or aluminum formwork is generally used for piecemeal assembly. However, this method of piecemeal assembly, often using tie bolts for connections, leads to significant patching and repair work during assembly and disassembly, resulting in substantial labor costs. Additionally, because the formwork is not integrally formed, the molding quality is poor, posing a risk of leakage later on.

[0005] Chinese invention patent CN115341750A discloses a shear wall structure for high-rise buildings that can be lifted as a whole. First, a support frame is set on the existing building, and a hoist is erected on the support frame to lift the steel formwork as a whole. The steel formwork is fixed by a base with diagonal braces. This device imposes requirements on the pouring height of the shear wall and the size of the diagonal braces of the base. In order to reduce the size of the base of the lifting steel formwork, the pouring height of the shear wall at one time cannot be too high, and the simultaneous construction of the wall panels cannot be achieved.

[0006] Therefore, this invention proposes a novel structure for the integrated forming of new structural wall panels between existing buildings. Summary of the Invention

[0007] To overcome the shortcomings of the prior art, this invention provides an integrated forming system and construction method for new structural wall panels between existing buildings. By using a counter-bracing method, it innovatively adopts opposing support frames, installing the wall formwork and panel formwork on the opposing support frames, thus realizing the synchronous construction of the wall panels; avoiding the workload of later patching in traditional tie-type formwork support; the whole system is lightweight and efficient, with fast construction progress and labor saving.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An integrated forming system for new structural wall panels between existing buildings includes a lifting system fixed above the vertical direction of the existing building, a guide lifting system fixed to the side of the vertical structure of the existing building, a steel formwork system, and a counter-support system. The lifting system and the guide lifting system are respectively fixedly connected to the counter-support system for vertically lifting the counter-support system. The steel formwork system includes wall formwork and panel formwork on both sides of the wall to be poured. The wall formwork and the panel formwork are detachably connected to the counter-support system, and the panel formwork and the steel formwork can be poured simultaneously.

[0010] Preferably, the opposing support system includes an opposing support frame, an attached jack, a wheel and axle bracket, a lifting wheel, and an auxiliary guide wheel, all disposed between the wall to be poured and the existing building. The outer side of the wall formwork is detachably connected to the vertical rib of the opposing support frame, and the slab formwork is detachably connected to the bottom horizontal rib of the opposing support frame. The lifting wheel and the auxiliary guide wheel are respectively connected to the opposing support frame via wheel and axle brackets fixed on the opposing support frame, assisting in the smooth lifting of the opposing support frame and the formwork. The attached jack is disposed on the opposing support frame near the existing building, and during the wall formwork pouring process, it supports and fixes the wall formwork on both sides of the wall to be poured.

[0011] Preferably, the outer sides of the wall templates on both sides of the wall to be poured are respectively provided with connecting plugs, and the top of each template is provided with adjustable locking slots of the socket type. The vertical ribs of the opposing support frame are provided with vertical rib connection holes. The connecting plugs are inserted into the vertical rib connection holes to fix the wall templates to the opposing support frame. The two adjustable locking slots of the socket type are locked and fixed by pins to ensure the spacing between the wall templates on both sides. The horizontal ribs of the opposing support frame are provided with horizontal rib connection holes. The plate template is provided with plate template connection holes at the corresponding positions of the horizontal rib connection holes. The opposing support frame and the plate template are fixedly connected through the plate template connection holes, the horizontal rib connection holes, and the hangers.

[0012] More preferably, the edges of the wall template and the board template are respectively made of L-shaped joints to increase the flatness of the formed wall and board.

[0013] Preferably, the lifting system includes a guide rail frame and guide rails. The guide rail frame is fixed to the side of the vertical structure of the existing building. The guide rails are arranged on the guide rail frame, allowing the lifting wheel in the opposing support system to climb vertically. The lifting wheel engages with the guide rails, slides upward, and locks downward to control the vertical displacement of the lifting system. The auxiliary guide wheel can slide along the upright of the guide rail frame to control the horizontal displacement of the lifting system.

[0014] More preferably, the guide rail frame is attached to the side of the shear wall or structural column of the existing building.

[0015] Preferably, the lifting system includes a crossbeam, a rear support rod at one end of the crossbeam, a cable at the other end of the crossbeam, and a front support rod between the rear support rod and the cable. The front support rod and the rear support rod are arranged at equal intervals on the vertical structure of the existing building and are connected into a whole by the crossbeam. The cable is connected to the opposing support frame to vertically lift the opposing support frame.

[0016] Preferably, the cable includes a lifting cable that bears the entire load of the upward pulling operation and a safety cable as a safety reserve. The rear support rod is located at one end of the crossbeam, and both the lifting cable and the safety cable are suspended at the other end of the crossbeam.

[0017] More preferably, the front support rod and the rear support rod are installed on the shear wall or column structure of the existing building.

[0018] Preferably, the wall template is provided with external stiffening ribs corresponding to the gap positions of the vertical ribs of the opposing support frame.

[0019] More preferably, when there is a hollow space at the bottom of the existing building, the panel template is a wall panel combination bottom mold. One end of the wall panel combination bottom mold is connected to the opposite support frame through a pre-reserved connection hole and a hanger, and the other end is attached to the stiffening rib plate.

[0020] This invention also provides a construction method for an integrated forming system of structural wall panels for new construction between existing buildings, comprising the following steps:

[0021] Step 1: Select appropriate shear walls and columns on the existing building and install the front and rear support rods of the lifting system at equal intervals. The front and rear support rods are connected into a whole by a crossbeam, and the lifting cable and safety cable are hung under the crossbeam.

[0022] Step 2: Arrange appropriate-sized opposing support frames according to the distance between the wall to be poured and the existing building, and connect the lifting cables and safety cables to the opposing support frames for lifting.

[0023] Step 3: Determine and install the steel formwork system based on the layout of the structural walls to be expanded between existing buildings. After completing one span of the wall to be poured from bottom to top, continue construction of the next span longitudinally, including the slab to be poured between the wall and the existing building. Specifically:

[0024] Insert the connecting plugs of the wall formwork on both sides of the wall to be poured into the vertical connecting holes of the opposing support frame. Lock the adjustable locking port of the top of the wall formwork with the pin shaft. Attach the attached jack to the opposing support frame near the existing building. The wall formwork on both sides is lifted vertically and evenly upwards along the guide rail by the lifting cable and safety cable. After being lifted to the construction position, the wall formwork is fixed to the existing building structure on both sides by the attached jack. Install the slab formwork at the horizontal rib of the opposing support frame by the hanging rod. Then pour the wall and slab respectively. When the wall and slab structure strength meets the requirements, remove the hanging rod and slab formwork, loosen the hydraulic cylinder of the attached jack, and lift the wall formwork and opposing support frame to the next construction position by the lifting cable.

[0025] Step 4: After the single-span structure is capped, remove the wall formwork and the opposing support frame, adjust the support position of the front and rear support rods and the length of the crossbeam, and adjust the size and position of the opposing support frame;

[0026] Step 5: Repeat the above construction steps until the construction is completed.

[0027] Preferably, if the existing building has a hollowed-out ground floor, a ground-mounted support frame can be installed at the position of the shear wall on one side. After the bottom wall and panel are formed, the opposite support frame can be removed and the wall can be lifted upwards for installation. Alternatively, a wall panel combination bottom formwork can be used as a panel template. One end of the wall panel combination bottom formwork is connected to the opposite support frame through a hanger, and the other end is attached to the stiffening rib plate.

[0028] Beneficial effects

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. By using opposing support frames to suspend wall and slab formwork via hangers, simultaneous pouring of shear walls and floor slabs can be achieved during construction. The formwork is made of steel, and the joints use L-shaped butt joints to ensure the appearance quality of the concrete. When the shear wall and floor slab concrete reach a certain strength and before the construction of the top slab of this floor, the slab formwork is removed and transported to the next floor via the hangers, while the wall formwork is lifted to the next floor by the lifting system.

[0031] 2. The lifting system is built upon the existing structure and supported on the existing building structure, making the integrated wall panel forming system lighter and more efficient during lifting, accelerating construction progress and saving labor. Guide rail frames and rails are installed on the side walls of the building structure, and in conjunction with the wheel and axle brackets, lifting wheels, and auxiliary guide wheels on the opposing support frame, the integrated wall panel forming system of this invention can be guaranteed to maintain vertical and horizontal stability during lifting, improving the forming quality of the structure.

[0032] 3. The wall formwork adopts opposing support frames for mutual support, and is equipped with top socket-type adjustable locking joints, which eliminates the impact of using tie bolts to connect the formwork in the traditional shear wall pouring method on the quality and flatness of the wall, and avoids the amount of later patching work required by traditional tie-type formwork support. Attached Figure Description

[0033] Figure 1 A schematic diagram of the casting of the first wall panel in the intermediate structure of the expansion of two existing buildings, based on the wall panel integrated forming system and construction method of the present invention.

[0034] Figure 2 This is a schematic diagram of the subsequent wall panels for the intermediate structure of the expansion of two existing buildings, which is a wall panel integrated forming system of the present invention.

[0035] Figure 3 This is a schematic diagram of the wall panel integrated forming system and construction method of the present invention, showing the installation of a ground-mounted support frame for the first wall panel of the expansion section during suspended casting;

[0036] Figure 4 This is a schematic diagram of a ground-mounted support frame for the subsequent wall panels of the expanded section in the suspended casting of the integrated wall panel forming system of the present invention.

[0037] Figure 5 This is a schematic diagram of the complete suspended casting of the first wall panel in the expansion section of the wall panel integrated forming system and construction method of the present invention;

[0038] Figure 6 This is a schematic diagram of the complete suspended casting of subsequent wall panels in the expanded section of the integrated wall panel forming system of the present invention.

[0039] Figure 7 This is a schematic diagram of the lifting of the opposing support frame of the present invention;

[0040] Figure 8 This is a magnified view of part A.

[0041] Figure 9 This is a schematic diagram of the wall template of the present invention;

[0042] Figure 10 This is a schematic diagram of the structure of the template of the present invention;

[0043] Figure 11 This is a schematic diagram of the structure of the bottom mold of the wall panel assembly of the present invention.

[0044] The components are as follows: 1-1 Existing building; 1-2 Wall to be poured; 1-3 Slab to be poured; 1-4 Ground-mounted support frame; 2-1 Horizontal beam; 2-2 Front support rod; 2-3 Rear support rod; 2-4 Lifting cable; 2-5 Safety cable; 3-1 Guide rail frame; 3-2 Guide rail; 4 Opposite support frame; 4-1 Vertical rib; 4-2 Horizontal rib; 4-3 Vertical rib connection hole; 4-4 Horizontal rib connection hole; 5 Attached jack; 6-1 Wheel and axle bracket; 6-2 Lifting wheel; 6-3 Auxiliary guide wheel; 7 Wall formwork; 7-1 Butt plug; 7-2 Stiffening rib plate; 7-3 Socket type adjustable lock; 7-4 Pin shaft; 8 Slab formwork; 8-1 Hanging rod; 8-2 Slab formwork connection hole; 9 Wall panel combination bottom formwork; 9-1 Bottom formwork reserved connection hole. Detailed Implementation

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail 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.

[0047] The present invention discloses an integrated forming system for new structural wall panels between existing buildings, comprising a lifting system fixed above the vertical direction of the existing building, a guide lifting system fixed to the side of the vertical structure of the existing building, a steel formwork system, and a counter-support system. The lifting system and the guide lifting system are respectively fixedly connected to the counter-support system for vertically lifting the counter-support system. The steel formwork system includes a wall formwork 7 and a panel formwork 8, both of which are detachably connected to the counter-support system, and the panel formwork 8 and the steel formwork can be poured simultaneously.

[0048] The following section uses the pouring of the intermediate structure for the expansion of two existing buildings (1-1) as an example to further explain the structure and construction methods of each system. (Refer to...) Figures 1-11 .

[0049] like Figure 1 , Figure 2As shown, lifting systems are installed above the two existing buildings 1-1 in the vertical direction. Each lifting system includes a crossbeam 2-1, a rear support rod 2-3 located at one end of the crossbeam 2-1, a cable located at the other end of the crossbeam 2-1, and a front support rod 2-2 located between the rear support rod 2-3 and the cable. The front support rod 2-2 and the rear support rod 2-3 are arranged at equal intervals on the vertical structure of the existing building 1-1, such as the shear wall or column structure of the existing building 1-1, and are connected into a whole by the crossbeam 2-1. The crossbeam 2-1 can balance the tension of the front and rear support rods 2-3 and the cable. The cable is connected to the opposite support frame 4 and is used to vertically lift the opposite support frame 4.

[0050] In this embodiment, the cables include a lifting cable 2-4 that bears the entire load of the upward pulling operation and a safety cable 2-5 as a safety reserve, which can be referred to the appendix. Figure 7 The rear support rod 2-3 is located at one end of the crossbeam 2-1, and the lifting cable 2-4 and the safety cable 2-5 are both suspended at the other end of the crossbeam 2-1.

[0051] Since the lifting system is built on the existing structure and supported on the existing building 1-1 structure, it is lighter and more efficient to lift, the construction progress is faster and labor is saved.

[0052] To ensure the vertical and horizontal stability of the integrated wall panel forming system and the forming quality of the cast structure, this embodiment also includes a guide system, which can be referred to in the appendix. Figure 7 , Figure 8 The lifting system is installed on the vertical structural sidewalls of the two existing buildings 1-1, including a vertical guide rail frame 3-1 and guide rails 3-2. The guide rail frame 3-1 is attached and fixed to the vertical structural side of the opposite existing building 1-1, and the attachment position can be a structural shear wall or a structural column. The guide rails 3-2 are arranged on the guide rail frame 3-1, allowing the lifting wheels 6-2 in the opposite support system to climb vertically. The lifting wheels 6-2 engage with the guide rails 3-2, sliding upwards and locking downwards to control the vertical displacement of the lifting system. The auxiliary guide wheels 6-3 can slide along the uprights of the guide rail frame 3-1 to control the horizontal displacement of the lifting system.

[0053] In this embodiment, to avoid using tie bolts to connect the formwork during shear wall pouring, a counter-bracing system is used for counter-bracing. The counter-bracing system includes a counter-bracing frame 4 installed between the wall to be poured 1-2 and the existing building 1-1, an attached jack 5, a wheel and axle bracket 6-1, a lifting wheel 6-2, and an auxiliary guide wheel 6-3.

[0054] The dimensions of the opposing support frame 4 are modularly customized according to the distance of the opposing supports near the shear wall, so as to facilitate disassembly and assembly. The opposing support frame 4 is a frame structure including horizontal crossbeams 4-2 and vertical crossbeams 4-1. The wheel axle bracket 6-1 is fixed on the crossbeams 4-2 of the opposing support frame 4. The lifting wheel 6-2 and the auxiliary guide wheel 6-3 are respectively installed on the wheel axle bracket 6-1 and connected to the opposing support frame 4 through the wheel axle bracket 6-1 to assist in the smooth lifting of the opposing support frame 4 and the formwork.

[0055] The attached jacks 5 are installed on the opposing support frames 4 near the guide rails 3-1 of the two existing buildings 1-1, and are used to support and fix the wall formwork 7 on both sides of the wall to be poured 1-2 during the pouring process. The outer side of the wall formwork 7 is detachably connected to the vertical ribs 4-1 of the opposing support frame 4, and the slab formwork 8 is detachably connected to the bottom horizontal ribs 4-2 of the opposing support frame 4.

[0056] As a preferred structure for detachably connecting the wall formwork 7, the slab formwork 8, and the opposing support frame 4, vertical connecting holes 4-3 are provided on the vertical ribs 4-1 of the opposing support frame 4, and horizontal connecting holes 4-4 are provided on the horizontal ribs 4-2 of the opposing support frame 4; butt plugs 7-1 are provided on the outside of the wall formwork 7 on both sides of the wall to be poured 1-2, and a socket-type adjustable locking port 7-3 is provided on each opposite side at the top; slab formwork 8 is evenly provided with slab formwork connecting holes 8-2 corresponding to the positions of the horizontal connecting holes 4-4, such as... Figure 9 , Figure 10 As shown. During connection, the mating plug 7-1 is inserted into the vertical rib connection hole 4-3 to fix the wall template 7 to the vertical rib 4-1 of the opposite support frame 4; the plate template 8 is connected to the opposite support frame 4 through the hanger 8-1; the two opposite socket-type adjustable locking holes 7-3 are locked and fixed by the pin 7-4 to ensure the spacing between the two wall templates 7.

[0057] To increase the flatness of the wall and panel forming, in this embodiment, both the wall template 7 and the panel template 8 are made of steel templates, and the edges of the steel templates are joined with L-shaped joints.

[0058] In addition, external stiffening ribs 7-2 can be installed on the wall formwork 7, corresponding to the gap positions of the vertical ribs 4-1 of the opposing support frame 4. When the ground floor of the existing building 1-1 has a hollow structure, the panel formwork 8 is replaced with the wall panel combination bottom formwork 9, and the structural schematic diagram of the wall panel combination bottom formwork 9 is shown below. Figure 11 As shown, one end of the wall panel assembly bottom formwork 9 is connected to the opposite support frame 4 through the bottom formwork pre-reserved connection hole 9-1 and the hanger 8-1, and the other end is attached to the stiffening rib plate 7-2.

[0059] When using the integrated wall panel forming system of the present invention for construction, refer to Figure 1 , Figure 2 It includes the following steps:

[0060] Step 1: On the existing building 1-1, select suitable shear walls and columns at equal intervals to install the front support rod 2-2 and the rear support rod 2-3 of the lifting system. The front support rod 2-2 and the rear support rod 2-3 are connected into a whole by a crossbeam 2-1. The lifting cable 2-4 and the safety cable 2-5 are hung under the crossbeam 2-1.

[0061] Step 2: Arrange the appropriate size of the opposing support frame 4 according to the distance between the wall 1-2 to be poured and the existing building 1-1. Connect the lifting cable 2-4 and the safety cable 2-5 to the opposing support frame 4 to lift the opposing support frame 4.

[0062] Step 3: Based on the layout of the structural walls to be expanded between existing building 1-1, determine and install the steel formwork system. After completing one span of the wall 1-2 to be poured from bottom to top, continue construction of the next span along the longitudinal direction, and construct it together with the slab 1-3 to be poured between the wall and existing building 1-1. Specifically:

[0063] Insert the external connecting plug 7-1 of the wall template 7 on both sides of the wall to be poured into the vertical connecting hole 4-3 of the opposing support frame 4. The socket-type adjustable locking hole 7-3 at the top of the wall template 7 is locked by the pin 7-4. Attach the attached jack 5 to the opposing support frame 4 near the two existing buildings 1-1. The wall templates 7 on both sides are lifted vertically upward along the guide rail 3-2 by the lifting cable 2-4 and the safety cable 2-5 to lift the opposing support frame 4 evenly. After being lifted to the construction position, the wall template 7 is fixed by the supporting jack 5 and the existing building structure on both sides. Install the plate template 8 at the horizontal rib 4-2 position of the opposing support frame 4 through the hanging rod 8-1 (connect the horizontal rib connecting hole 4-4 of the opposing support frame 4 to the lower hanging plate template connecting hole 8-2 through the hanging rod 8-1) to connect the plate template 8 to the opposing support frame 4.

[0064] Next, the walls and slabs are poured separately. When the structural strength of the walls and slabs reaches the required level, the hangers 8-1 and the slab formwork 8 are removed, the hydraulic cylinders of the attached jacks 5 are released, and the wall formwork 7 and the opposing support frame 4 are lifted to the next construction position by the lifting cables 2-4.

[0065] Step 4: After the single-span structure is capped, remove the wall formwork 7 and the opposing support frame 4, adjust the support position of the front support rod 2-2 and the rear support rod 2-3 and the length of the crossbeam 2-1, and adjust the size and position of the opposing support frame 4.

[0066] Step 5: Repeat the above construction steps until the construction is completed.

[0067] It should be noted that when the ground floor of the existing building 1-1 has openwork, such as Figure 3 , Figure 4As shown, floor-mounted support frames 1-4 can be installed at the location of one side of the shear wall. After the bottom layer of wall and slab is formed, the opposing support frame 4 can be removed and the wall can be lifted upwards for installation. Alternatively, the wall panel combination bottom formwork 9 can be used as the slab formwork 8, as shown. Figure 5 , Figure 6 As shown, one end of the wall panel assembly bottom formwork 9 is connected to the opposite support frame 4 via a hanger 8-1, and the other end is attached to the stiffening rib plate 7-2.

[0068] The foregoing detailed examples of the present invention are merely preferred embodiments and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An integrated molding system for new structural wall panels between existing buildings, characterized in that... The system includes a lifting system fixed vertically above the existing building, a guide system fixed to the side of the existing building's vertical structure, a steel formwork system, and a counter-support system. The lifting system and the guide system are respectively fixedly connected to the counter-support system for vertically lifting the counter-support system. The steel formwork system includes wall formwork and slab formwork on both sides of the wall to be poured. Both the wall formwork and the slab formwork are detachably connected to the counter-support system, and the slab formwork and the wall formwork are poured simultaneously. The opposing support system includes an opposing support frame, attached jacks, wheel and axle brackets, lifting wheels, and auxiliary guide wheels, all installed between the wall to be poured and the existing building. The outer side of the wall formwork is detachably connected to the vertical ribs of the opposing support frame, and the slab formwork is detachably connected to the bottom horizontal ribs of the opposing support frame. The lifting wheels and auxiliary guide wheels are connected to the opposing support frame via wheel and axle brackets fixed to the opposing support frame. The attached jacks are installed on the opposing support frame near the existing building to support and fix the wall formwork during the pouring process. The two wall templates are respectively provided with connecting plugs on their outer sides and adjustable locking slots with sockets facing each other on their tops. The vertical ribs of the opposing support frame are provided with vertical rib connection holes. The connecting plugs are inserted into the vertical rib connection holes to fix the wall templates to the opposing support frame. The two adjustable locking slots are locked and fixed by pins. The horizontal ribs of the opposing support frame are provided with horizontal rib connection holes. The plate template is provided with plate template connection holes at corresponding positions to the horizontal rib connection holes. The opposing support frame and the plate template are fixedly connected through the plate template connection holes, the horizontal rib connection holes, and the hangers. The lifting system includes a guide rail frame and guide rails. The guide rail frame is fixed to the side of the vertical structure of the existing building. The guide rails are arranged on the guide rail frame. The lifting wheel engages with the guide rails and slides upward and locks downward. The auxiliary guide wheel slides along the upright of the guide rail frame.

2. An integrated forming system for new structural wall panels in conjunction with existing buildings according to claim 1, wherein: The lifting system includes a crossbeam, a rear support rod at one end of the crossbeam, a cable at the other end of the crossbeam, and a front support rod between the rear support rod and the cable. The front support rod and the rear support rod are installed on the vertical structure of the existing building and are connected as a whole by the crossbeam. The cable is connected to the opposing support frame to vertically lift the opposing support frame.

3. An integrated forming system for new structural wall panels in existing buildings according to claim 2, wherein: The cable includes a lifting cable that bears the entire load of the upward pulling operation and a safety cable as a safety reserve. The rear support rod is located at one end of the crossbeam, and both the lifting cable and the safety cable are suspended at the other end of the crossbeam.

4. The integrated forming system for new structural wall panels between existing buildings according to claim 1, characterized in that: The edges of the wall template and the slab template are respectively made with L-shaped joints, and the dimensions of the opposing support frame are made modularly according to the distance of the opposing support near the shear wall.

5. An integrated forming system for new construction wall panels with existing building according to claim 1, characterized in that: The wall template is provided with external stiffening ribs corresponding to the gap positions of the vertical ribs of the opposing support frame; when there is a hollow space on the ground floor of the existing building, the template is a wall panel combination bottom mold, one end of the wall panel combination bottom mold is connected to the opposing support frame through a pre-reserved connection hole and a hanger, and the other end is attached to the stiffening ribs.

6. A construction method of the integrated forming system of the new structural wall panel with the existing building of any one of claims 1 to 5, characterized in that Includes the following steps: Step 1: Select appropriate shear walls and columns on the existing building and install the front and rear support rods of the lifting system at equal intervals. The front and rear support rods are connected into a whole by a crossbeam, and the lifting cable and safety cable are hung under the crossbeam. Step 2: Arrange the opposite support frame of appropriate specifications according to the distance between the wall to be poured and the existing building, and connect the lifting cable and safety cable to the opposite support frame for lifting the opposite support frame; Step 3: Determine and install the steel formwork system based on the layout of the structural walls to be expanded between existing buildings. After completing one span of the wall to be poured from bottom to top, continue construction of the next span longitudinally, including the slab to be poured between the wall and the existing building. Specifically: Insert the connecting plugs of the wall formwork on both sides of the wall to be poured into the vertical connecting holes of the opposing support frame. Lock the adjustable locking port of the top of the wall formwork with a pin. Attach the attached jacks to the opposing support frame near the existing building. The wall formwork on both sides is lifted vertically and evenly upwards along the guide rail via lifting cables and safety cables. After being lifted to the construction position, the wall formwork is fixed by the attached jacks. Install the slab formwork at the horizontal rib of the opposing support frame using a hanger. Then pour the wall and slab respectively. When the structural strength of the wall and slab reaches the required level, remove the hanger and slab formwork, loosen the hydraulic cylinder of the attached jacks, and lift the wall formwork and opposing support frame to the next construction position via the lifting cables. Step 4: After the single-span structure is capped, remove the wall formwork and the opposing support frame, adjust the support position of the front and rear support rods and the length of the crossbeam, and adjust the size and position of the opposing support frame; Step 5: Repeat the above construction steps until the construction is completed.

7. The construction method of an integrated forming system for new structural wall panels between existing buildings according to claim 6, characterized in that: If the existing building has a hollowed-out ground floor, install a ground-mounted support frame at the location of the shear wall on one side. After the bottom wall and slab are formed, remove the opposite support frame and lift it upwards for installation; or use a wall panel combination bottom formwork as the slab template. One end of the wall panel combination bottom formwork is connected to the opposite support frame through a hanger, and the other end is attached to the stiffening rib plate.

Images