Modular construction system and method for non-standard layer aluminum-wood combined formwork keel

Abstract

The invention discloses a modular construction system and method for a keel of a non-standard layer aluminum-wood combined template, and the system comprises a non-standard layer aluminum-wood combined template system and a jacking joint filling device disposed at the bottom of the non-standard layer aluminum-wood combined template system. The non-standard layer aluminum-wood combined formwork system comprises a standardized aluminum formwork, a narrow-gap repairing formwork and a wide-gap repairing formwork, wherein the narrow-gap repairing formwork and the wide-gap repairing formwork are reinforced in the standardized aluminum formwork. The narrow-gap repairing template comprises a narrow-edge wood template and T-shaped keels arranged on the two sides of the narrow-edge wood template; the wide-gap repairing template comprises a wide-edge wood template and h-shaped keels arranged on the two sides of the wide-edge wood template; by developing a hydraulic electric control seam filling system, accurate and synchronous adjustment of an aluminum formwork system in the vertical height is achieved, the system integrates a jacking support, multiple sets of single-action hydraulic cylinders and a sensing detection and locking mechanism, the target jacking height can be input through a control panel, automatic leveling is achieved, hydraulic self-locking and mechanical plug pin double locking are adopted, and the hydraulic self-locking and mechanical plug pin double locking effect is achieved. And a template system is ensured to be stable and free of settlement in the pouring process.

Description

Technical Field

[0001] This application pertains to the field of building construction, specifically to a modular construction system and method for non-standard aluminum-wood composite formwork keel. Background Technology

[0002] With the continuous advancement of industrialized construction and green construction concepts, aluminum alloy formwork systems have been widely used in the standard floor construction of high-rise and super high-rise buildings due to their advantages such as high turnover rate, high construction precision, good forming quality, and environmental recyclability. However, in actual projects, the structural dimensions, floor height, and beam and slab layout of non-standard floors such as basements, equipment floors, transfer floors, and roof floors often differ from those of standard floors, making it difficult to fully adopt a standardized aluminum formwork system. Therefore, it is still necessary to rely heavily on on-site cutting and piecing together of wooden formwork.

[0003] The common aluminum-wood combination construction methods currently have the following main problems: Non-standardized connection methods: Temporary reinforcement measures such as adding wooden squares and steel back braces on site are often used between wooden formwork and aluminum formwork. The connection nodes are not rigid enough and are prone to deformation, which leads to frequent problems such as grout leakage and misalignment at the joints.

[0004] Poor adaptability and adjustability: Traditional aluminum formwork systems cannot achieve flexible adjustment of vertical height. When the floor height changes, the bottom of the formwork often becomes suspended or has gaps, requiring the customization of non-standard aluminum formwork or the complete replacement with wooden formwork, resulting in material waste and extended construction period.

[0005] Low construction efficiency and unstable quality: On-site manual patching and reinforcement rely on workers' experience, the construction process is not uniform, the quality of concrete forming is inconsistent, which affects the appearance of the structure and the pass rate of actual measurement.

[0006] Low level of systematization: The lack of standardized connecting components specifically for aluminum-wood transition results in poor overall integrity of the formwork system, making it difficult to systematically recycle materials after demolding, which restricts the economic efficiency and green construction level of aluminum formwork.

[0007] Therefore, there is an urgent need for a systematic, modular, and height-adjustable aluminum-wood composite formwork system to solve the problems of reliable connection and height matching between aluminum and wood formwork in non-standard floor construction. Summary of the Invention

[0008] The purpose of this invention is to provide a modular construction system and method for non-standard aluminum-wood composite formwork keel, so as to solve the problems of unreliable aluminum-wood formwork connection, low construction efficiency, inability to adapt to changes in floor height, and insufficient systematization in the prior art.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: A modular construction system for non-standard layer aluminum-wood composite formwork keel is characterized by: including a non-standard layer aluminum-wood composite formwork system and a lifting and joint filling device located at the bottom of the non-standard layer aluminum-wood composite formwork system; the non-standard layer aluminum-wood composite formwork system includes standardized aluminum formwork and narrow joint filling templates and wide joint filling templates reinforced within the standardized aluminum formwork; the narrow joint filling template includes narrow-side wooden templates and T-shaped keels located on both sides of the narrow-side wooden templates; the wide joint filling template includes wide-side wooden templates and H-shaped keels located on both sides of the wide-side wooden templates; the T-shaped keels and H-shaped keels are connected to the standardized aluminum formwork on both sides with special pins and pin plates for aluminum formwork. The lifting and patching device is a hydraulic and electric control patching system, including a lifting bracket and multiple parallel single-acting hydraulic cylinders spaced apart in the lifting bracket, an integrated control pump station, a sensor detection system and a locking mechanism. The lifting bracket includes an upper L-shaped guide plate and a lower L-shaped pad plate. The vertical plate one of the upper L-shaped guide plate and the vertical plate two of the lower L-shaped pad plate are stacked to form the bottom gap side mold. The integrated control pump station includes a manual or electric hydraulic pump, a precision directional valve and a throttle valve, a hydraulic oil tank and a control panel; the single-acting hydraulic cylinder includes a cylinder body, a piston rod and a support plate located on top of the piston rod. Sensing and monitoring system: A high-precision pressure sensor is integrated into the oil circuit of each single-acting hydraulic cylinder hydraulic support unit to monitor the supporting force of the hydraulic cylinder in real time; a displacement sensor is installed on the side of the piston rod or at the support plate to monitor the lifting height of the template in real time. Locking mechanism: includes locking plates and hardened steel pins located on the outer walls of the cylinder body and piston rod.

[0010] More preferably, the T-shaped keel is an aluminum alloy frame, including a vertical web and a horizontal wing plate. The width of the narrow-side wooden template is less than 250mm. The narrow-side wooden template is connected to the inside corner where the vertical web and the horizontal wing plate meet, and is fixed to the vertical web by round-head screws.

[0011] Furthermore, the H-shaped keel has an aluminum alloy frame, including two parallel wing plates and a web plate connected between the wing plates. The width of the wide-side wooden template is greater than 250mm and less than 350mm. The wide-side wooden template is connected to the inside corner where the edge of one of its wing plates extends backward into the web plate and intersects with the web plate, and is fixed to the web plate with round-head screws.

[0012] Furthermore, the lifting support is made of aluminum profile, the inner wall of the first upright plate is provided with guide strips, the outer wall of the second upright plate is provided with guide grooves, the guide strips are limited to the guide grooves, the first upright plate is located outside the second upright plate and is stacked together, and the lower part of the upright plate is filled with extruded board, and tie rods are also provided between the upper L-shaped guide plates on opposite sides.

[0013] Furthermore, it also includes a corner splicing wooden formwork located at the inside corner of the beam, floor slab, and wall panel. The inside corner splicing wooden formwork includes a T-shaped keel, a vertical wooden formwork, a narrow-side wooden formwork, and a T-shaped keel arranged in sequence, or it includes a T-shaped keel, a vertical wooden formwork, a wide-side wooden formwork, and an H-shaped keel arranged in sequence. The vertical wooden formwork is set perpendicular to and close to the inside corner of the beam, floor slab, and wall panel, and reinforcing timber is fixed to the inside corner of the vertical wooden formwork, the narrow-side wooden formwork, and the wide-side wooden formwork. The wide-side wooden formwork is provided with secondary keels at intervals.

[0014] The construction method of the non-standard layer aluminum-wood combined formwork keel modular construction system is characterized by: S1: Lift the lifting and sealing device to the predetermined position: On the control panel of the pump station, input the target lifting height value H calculated based on the elevation measurement results, start the automatic leveling mode, the hydraulic pump station drives all hydraulic cylinders to move synchronously, the displacement sensor feeds back the height data to the control system in real time, the control system compares the measured height with the target height, and makes fine adjustments by adjusting the flow of each branch until the elevation of all support points is stable within the allowable range of H ± 1 mm, thus achieving high-precision synchronous leveling; S2: Locking Lifting and Sealing Device: First Lock: Hydraulic Self-Locking After the jacking is in place, the control system automatically closes the hydraulic check valve in the oil circuit, locking the hydraulic oil in the cylinder to form the first anti-settlement barrier. The pump station stops working, and the system enters the pressure holding state. Second lock: Mechanical hard lock: After confirming that the lock hole on the piston rod is aligned with the lock hole on the cylinder, insert the high-strength locking pin and install the anti-fall-off snap ring; The third layer of horizontal lock: Install tie rods to control the spacing between the side molds of the bottom seam on both sides; S3: Non-standard aluminum-wood composite formwork construction: Construct standardized aluminum formwork, narrow joint patching formwork, and wide joint patching formwork according to the predetermined design; at the aluminum-wood composite parts, install standard aluminum S5: and pour concrete; S4: After demolding, the aluminum template, modular keel and adjustable bottom mold device can be reused.

[0015] Compared with the prior art, the present invention has the following features and beneficial effects: This application achieves a rigid and rapid connection between aluminum and wooden formwork by designing standardized and modular "T"-shaped and "h"-shaped special connecting keels. The "T"-shaped keel is suitable for narrow gaps with a patch width of less than 250mm. Its horizontal flange covers the edge of the wooden formwork and is fixed with round-head screws to ensure that the narrow wooden formwork does not warp.

[0016] The "h" type keel is suitable for wide joints with a patch width of 250mm to 350mm. It adopts a double-sided clamping structure, spanning both sides of the wooden template and connecting with the aluminum template pins. It effectively prevents the middle of the wide template from bulging, and realizes a smooth transition and firm connection between aluminum and wood templates. It transforms non-standard patching into standardized assembly operations, and solves the problems of unreliable nodes, low construction efficiency and poor joint flatness in traditional aluminum-wood hybrid splicing.

[0017] This application develops a hydraulic and electrically controlled joint filling system, which achieves precise and synchronous adjustment of the vertical height of the aluminum formwork system. The system integrates a lifting support, multiple sets of single-acting hydraulic cylinders, and a sensor detection and locking mechanism. The target lifting height can be input through the control panel to achieve automatic leveling. The system adopts a double locking mechanism of hydraulic self-locking and mechanical pins to ensure the stability of the formwork system without settlement during the pouring process. It achieves high-precision (±1mm) leveling and reliable locking of the formwork system in the vertical direction, solves the problems of aluminum formwork bottom suspension and excessive edge gaps caused by changes in floor height, avoids the need for customized non-standard formwork or all-wooden formwork construction, and expands the applicable scenarios of standard aluminum formwork.

[0018] This application achieves standardized splicing and reinforcement of the internal corners of beams, slabs, and wall panels by integrating internal corner splicing wooden formwork and reinforcing timber. The internal corners adopt a combination of vertical wooden formwork and T-type / H-type keel, along with reinforcing timber and secondary keel, to enhance the rigidity and sealing of the joints. This ensures the quality of concrete forming and the straightness of structural lines at the internal corners, and solves the problems of easy grout leakage and poor appearance of traditional joints at internal corners. Attached Figure Description

[0019] Figure 1 The diagrams show the standard layer aluminum mold and the non-standard layer aluminum mold structures involved in this application. Figure 2 This illustration shows the connection between the narrow and wide seam patching templates involved in this application and the standardized aluminum mold. Figure 3 This is a schematic diagram of the narrow seam patching template structure involved in this application; Figure 4 This is a schematic diagram of the wide seam patching template structure involved in this application; Figure 5 This is a diagram of the internal corner splicing wooden mold involved in this application; Figure 6 This is a diagram illustrating the two types of wooden molds with interlocking corners involved in this application; Figure 7 This is a structural diagram of the single-acting hydraulic cylinder involved in this application; Figure 8 This is a diagram illustrating the connection between the guide groove and guide bar involved in this application.

[0020] Attached reference numerals: 1-Standardized aluminum formwork; 2-Narrow joint patching formwork; 21-Narrow side wooden formwork; 22-T-shaped keel; 3-Wide joint patching formwork; 31-Wide side wooden formwork; 32-H-shaped keel; 4-Lifting bracket; 41-Upper L-shaped upper guide plate; 42-Lower L-shaped pad; 43-Extruded polystyrene board; 44-Guide groove; 45-Guide strip; 46-Tie rod; 5-Single-acting hydraulic cylinder; 51-Cylinder body; 52-Piston rod; 53-Support plate; 6-Corner spliced ​​wooden formwork; 61-Vertical wooden formwork; 62-Reinforcing timber; 63-Secondary timber keel. Detailed Implementation

[0021] To make the technical means, innovative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0022] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0023] Implementation Method 1 like Figures 1-8 As shown, this embodiment provides a modular construction system for non-standard aluminum-wood combined formwork keel, which is suitable for formwork construction of non-standard floors in building structures (such as floors with varying heights or special structural forms).

[0024] The system mainly includes a non-standard layer aluminum-wood composite formwork system and a lifting and joint-filling device located at its bottom. The standardized aluminum formwork 1 is a conventional aluminum formwork system used to cover most standard-sized areas. Narrow joint filling templates 2 and wide joint filling templates 3 are installed to fill the gaps between the standardized aluminum formwork 1s. The narrow joint filling template 2 consists of a narrow-sided wooden formwork 21 and T-shaped joists 22 on both sides. The width of the narrow-sided wooden formwork 21 is less than 250mm, and it is fixed to the inside corner of the T-shaped joists 22 with round-head screws. The wide joint filling template 3 consists of a wide-sided wooden formwork 31 and H-shaped joists 32 on both sides. The width of the wide-sided wooden formwork 31 is between 250mm and 350mm, and it is also fixed to the inside corner of the H-shaped joists 32 with round-head screws. Both the T-shaped joists 22 and the H-shaped joists 32 are connected to the adjacent standardized aluminum formwork 1s using special aluminum formwork pins and tabs, achieving rapid assembly and reliable force transmission.

[0025] "T" type keel: Its cross-section is T-shaped, including a vertical web plate that connects to the aluminum formwork and a horizontal flange plate for pressing and fixing the wooden formwork. This type of keel is suitable for narrow gaps or edges of wooden formwork patch panels with a width of less than 250mm. Its horizontal flange plate can provide sufficient coverage area to ensure that the wooden formwork is not prone to warping.

[0026] "H"-shaped keel: Its cross-section is "H"-shaped, which can be regarded as two "T"-shaped keels combined back to back, with two parallel horizontal flanges. This design allows it to span across both sides of wider wooden formwork panels (usually 250mm to 350mm wide), while connecting with the aluminum formwork frames on both sides to form a centered, clamping, stable reinforcement node, effectively preventing the middle part of wide wooden formwork from bulging or deforming.

[0027] The side plate connecting the “T”-shaped keel to the aluminum alloy standard template (standard aluminum mold 1) and the side plate connecting the “h”-shaped keel to the aluminum alloy standard template have two isosceles trapezoidal grooves of different sizes on their outer side plates. After interlocking with the protrusions of the side plates of the aluminum alloy standard template, they are connected to the adjacent standard aluminum mold 1 by pins and pin pieces.

[0028] The vertical web of the "T" shaped keel is 38mm long (the sum of the vertical web length and the horizontal wing thickness, which is also the total width of the "T" shaped keel is 38mm). The total width of the narrow joint patching template 2 is W + 16mm. The total length of the web of the "h" shaped keel is 100mm (the sum of the web length and the thickness of the two side flanges, which is also the total width of the "h" shaped keel is 100). The total width of the wide joint patch template 3 is the width of the wide side wooden template W + 16mm, and the distance between the two "h" shaped keels is the width of the wide side wooden template W - 184mm. The lifting and sealing device is a hydraulic-electric control system, including a lifting bracket 4 made of aluminum profile. The bracket houses multiple parallel single-acting hydraulic cylinders 5, an integrated control pump station, a sensing and detection system, and a locking mechanism. The upper L-shaped guide plate 41 and lower L-shaped pad 42 of the lifting bracket 4 overlap to form the bottom seam side mold, which contains guide strips 45 that cooperate with guide grooves 44 for precise guidance. A support plate 53 is located at the top of the piston rod 52 of the hydraulic cylinder 5 for lifting the template. The sensing system includes pressure and displacement sensors to monitor the lifting force and height in real time. The locking mechanism includes locking plates and hardened steel pins on the cylinder body and piston rod for mechanical locking.

[0029] At the inside corner of the beam and wall panel, a corner splicing wooden formwork 6 is set, including a vertical wooden formwork 61, reinforcing timber 62 and secondary timber joists 63, which are vertically connected to the narrow joint patching formwork 2 or the wide joint patching formwork 3 to enhance the corner rigidity and sealing.

[0030] During construction, the formwork system is first lifted to the design elevation and locked using a jacking and joint-sealing device, then the aluminum-wood formwork is assembled, and finally concrete is poured. After demolding, each component can be reused.

[0031] Implementation Method 2 This embodiment focuses on explaining the structure and leveling control method of the lifting and patching device.

[0032] The lifting and joint-sealing device adopts a modular hydraulic and electronic control system, the core of which consists of multiple parallel single-acting hydraulic cylinders 5, each equipped with an independent high-precision pressure sensor and displacement sensor. The integrated control pump station includes a manual / electric hydraulic pump, precision directional valve, throttle valve, hydraulic oil tank, and control panel, enabling automatic leveling and synchronous lifting.

[0033] During construction, first input the target lifting height value H in the control panel and start the automatic leveling mode. The hydraulic pump drives all hydraulic cylinders to move synchronously, and the displacement sensor feeds back the height data of each point to the control system in real time. The system makes fine adjustments by adjusting the flow rate of each branch until the elevation of all support points is stable within the range of H ± 1mm, achieving high-precision synchronous leveling.

[0034] After being lifted into position, the system has three locking mechanisms: the first is a hydraulic self-locking mechanism, which locks the oil circuit through a hydraulic check valve; the second is a mechanical hard lock, which inserts a high-strength locking pin and installs an anti-falling snap ring; the third is a horizontal lock, which fixes the side molds of the bottom seams on both sides through the tie rod 46 to prevent horizontal displacement.

[0035] This device is suitable for precise leveling and support of the bottom of various non-standard floor templates, especially for working conditions with large variations in floor height and poor ground flatness.

[0036] Implementation Method 3 This embodiment details the construction of the narrow seam patching template and the wide seam patching template, as well as their connection method with the aluminum template.

[0037] The narrow seam patching template 2 uses a T-shaped keel 22 as its frame. This keel is made of aluminum alloy and includes a vertical web and horizontal flanges. The narrow-edge wooden template 21 is installed at the inside corner of the T-shaped keel 22 and fixed to the vertical web with round-head screws. It is suitable for seam patching needs with a seam width of less than 250mm.

[0038] The wide seam patching template 3 uses an H-shaped keel 32 as its frame, which consists of two parallel wing plates and a middle web plate. The wide-side wooden template 31 is installed at the inside corner formed by one of the wing plates and the web plate, and is fixed to the web plate with round-head screws. It is suitable for patching seams with a width between 250mm and 350mm.

[0039] Both types of supplementary formwork are connected to adjacent standardized aluminum formwork 1 via special aluminum formwork pins and tabs, enabling rapid assembly and reliable force transmission. At the internal corners of beams, slabs, and wall panels, internal corner splicing wooden formwork 6 can also be used to enhance overall rigidity and construction adaptability.

[0040] This modular design enables efficient assembly and flexible joint filling of aluminum-wood formwork, improving the construction efficiency and forming quality of non-standard floor formwork. Implementation

[0041] This implementation method provides supplementary explanations on the implementation details of the modular and adjustable bottom formwork construction system for non-standard aluminum-wood composite formwork, with particular emphasis on construction techniques, parameter standards, and practical engineering applications.

[0042] 1. System Composition and Design Basis This system utilizes BIM technology for multidisciplinary collaboration and visualization during the design phase. For areas such as basements, non-standard floors, and roof pergola floors, the BIM model is used to redesign and adapt the standard floor aluminum formwork. Common standard panels (such as aluminum formwork with widths of 100mm, 200mm, 350mm, 400mm, and 500mm) are selected, combined, and numbered to form a formwork scheme suitable for non-standard floors. Aluminum-wood joints are precisely located in the model, and corresponding "T"-shaped and "h"-shaped modular keels are designed for transitional connections.

[0043] 2. Standardized design of modular keel To achieve rapid assembly and high turnover, the frame holes and dimensions of the "T"-shaped and "h"-shaped keels are consistent with those of the standard aluminum formwork frame, allowing for direct connection using special aluminum formwork pins and tabs. The keels adopt a modular length design, with main specifications of 100mm, 350mm, and 400mm, to accommodate the needs of different sized patch panels on site, reduce cutting waste, and improve turnover utilization.

[0044] The lifting and filling device serves as a bottom filling and lifting mechanism for the aluminum formwork. It utilizes two unequal-sided angle steels (L75mm×50mm×5mm) with their long sides overlapping to form a guide structure. An adjustable top support (not limited to a hydraulic cylinder) welded with Φ32 steel bars and sleeves allows for fine-tuning of the height. Holes are drilled at 1m intervals along the long sides of the angle steels, and M14 tie bolts are used for fixing and locking, forming a stable and reliable bottom support lifting platform. This device is pre-arranged and simulated in the BIM model to ensure its compatibility with the aluminum formwork system.

[0045] 3. Standardized construction process The construction process must strictly follow these procedures: Detailed design: Based on BIM, we completed the adaptation of non-standard floor aluminum formwork, keel design and bottom formwork device layout.

[0046] Construction preparation: Prepare a special plan, conduct technical briefings, and ensure that materials arrive on site and are inspected according to plan.

[0047] Measurement and layout: The axis was established using the internal control method, and the elevation was established using a steel tape measure and a level. The accuracy of the control line met the specifications.

[0048] Template installation: Wall formwork: Start installation from the inside corner. For the aluminum-wood joint, select the corresponding keel connection according to the width of the wooden formwork ("T" type keel for <250mm, "h" type keel for 250~350mm). The dowel spacing should not exceed 300mm.

[0049] Beams, slabs, and floor slabs: The beam bottoms are pre-assembled and then installed as a whole. The floor slabs are assembled according to their numbers. At the internal corners where aluminum and wood meet, 100mm×100mm wooden blocks are added for reinforcement and fixation.

[0050] Height adjustment: In areas where only the floor height changes, the elevation of the support platform is precisely adjusted by rotating the adjustable top support in the bottom formwork device, and then the upper aluminum formwork is installed.

[0051] Quality inspection: After installation, focus on checking the stability of the support, the tightness of the pins, the spacing of the keel installation (≤300mm), the verticality of the formwork (checked with a plumb line and tape measure), the flatness (checked with a 2m straightedge ≤2mm) and the elevation of the top plate (checked with a laser level).

[0052] Concrete pouring: Follow the order of first walls and columns, then beams and slabs, strictly control the pouring height and vibration process, and assign dedicated personnel to supervise the formwork system.

[0053] Formwork removal and reuse: After the concrete reaches the required strength, the formwork should be removed according to the principle of "first formwork removed, last formwork removed first". After cleaning and maintenance, the formwork can be reused for the next construction section or other projects.

[0054] 4. Key quality control parameters Unevenness at template joints: ≤2mm.

[0055] Template flatness (2m ruler): ≤2mm.

[0056] Support surface height error: ±5mm.

[0057] Axis displacement: ±5mm.

[0058] The aluminum-wood joint must be tight with no visible gaps.

[0059] Key Points for Safety and Environmental Protection Implementation Safety: Implement three levels of safety training; temporary power supply must meet the "one machine, one switch, one protection" requirement; wear safety belts when working at heights; set up warning zones for hoisting operations; and suspend high-risk operations during strong winds and thunderstorms.

[0060] Environmental protection: Control noise during construction (≤70dB during the day and ≤55dB at night), ensure site cleanup after completion, store waste separately, strictly prohibit on-site burning, and reduce dust and pollution.

[0061] 5. Engineering Applications and Benefit Examples This system and construction method have been successfully applied in the Rongqiao Garden Project in Hefei and the flood control and drainage ecological restoration project in Sanhe Town, Feixi County.

[0062] In the Feixi County project, the application area reached 29,594 square meters, compared with traditional all-wood formwork construction: Labor costs have decreased from 48 yuan / ㎡ to 38 yuan / ㎡.

[0063] This significantly reduced the investment in disposable wooden mold materials.

[0064] The construction period was shortened by about 20 days.

[0065] The total cost savings amounted to approximately 1.2 million yuan, demonstrating significant economic benefits.

[0066] At the same time, the concrete molding quality is good and the appearance is excellent, which improves construction efficiency and corporate image, resulting in significant social benefits.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A non-standard layer aluminum-wood combined formwork keel modular construction system, characterized in that: The system includes a non-standard layer aluminum-wood composite template system and a lifting and patching device located at the bottom of the non-standard layer aluminum-wood composite template system. The non-standard layer aluminum-wood composite template system includes a standardized aluminum formwork (1) and a narrow patching template (2) and a wide patching template (3) reinforced within the standardized aluminum formwork (1). The narrow patching template (2) includes a narrow-side wooden template (21) and T-shaped keels (22) located on both sides of the narrow-side wooden template (21). The wide patching template (3) includes a wide-side wooden template (31) and h-shaped keels (32) located on both sides of the wide-side wooden template (31). The T-shaped keels (22) and h-shaped keels (32) are connected to the aluminum formwork special pins and pin pieces of the standardized aluminum formwork (1) on both sides. The lifting and patching device is a hydraulic and electric control patching system, including a lifting bracket (4) and multiple parallel single-acting hydraulic cylinders (5) spaced apart in the lifting bracket (4), an integrated control pump station, a sensor detection system and a locking mechanism. The lifting bracket (4) includes an upper L-shaped guide plate (41) and a lower L-shaped pad plate (42). The vertical plate one of the upper L-shaped guide plate (41) and the vertical plate two of the lower L-shaped pad plate (42) are stacked to form the bottom seam side mold. The integrated control pump station includes a manual or electric hydraulic pump, a precision directional valve and a throttle valve, a hydraulic oil tank and a control panel. The single-acting hydraulic cylinder (5) includes a cylinder body (51), a piston rod (52) and a support plate (53) located on the top of the piston rod (52). Sensing and monitoring system: A high-precision pressure sensor is integrated into the oil circuit of each single-acting hydraulic cylinder (5) hydraulic support unit to monitor the supporting force of the hydraulic cylinder in real time; a displacement sensor is installed on the side of the piston rod or at the support plate to monitor the lifting height of the template in real time; Locking mechanism: includes locking plates and hardened steel pins located on the outer walls of the cylinder and piston rod.

2. The non-standard layer aluminum-wood combined formwork keel modular construction system as described in claim 1, characterized in that: The T-shaped keel (22) is an aluminum alloy frame, including a vertical web and a horizontal wing. The narrow-side wooden template (21) is less than 250mm wide. The narrow-side wooden template (21) is connected to the inside corner where the vertical web and the horizontal wing are connected, and is fixed to the vertical web by round-head screws.

3. The non-standard layer aluminum-wood combined formwork keel modular construction system as described in claim 1, characterized in that: The h-shaped keel (32) is an aluminum alloy frame, including two parallel wing plates and a web plate connected between the wing plates. The width of the wide-side wooden template (31) is greater than 250mm and less than 350mm. The wide-side wooden template (31) is connected to the inside corner where the edge of one of its wing plates extends backward into the web plate and intersects with the web plate, and is fixed to the web plate by round-head screws.

4. The non-standard layer aluminum-wood combined formwork keel modular construction system as described in claim 1, characterized in that: The lifting support (4) is made of aluminum profile. The inner wall of the first upright plate is provided with guide strip (45), and the outer wall of the second upright plate is provided with guide groove (44). The guide strip (45) is limited to the guide groove (44). The first upright plate is located outside the second upright plate and is stacked together. The lower part of the upright plate is filled with extruded board (43). A tie rod (46) is also provided between the upper L-shaped upper guide plates (41) on opposite sides.

5. The non-standard layer aluminum-wood combined formwork keel modular construction system as described in claim 1, characterized in that: It also includes a corner splicing wooden formwork located at the inside corner of the beam, floor and wall panels. The inside corner splicing wooden formwork (6) includes a T-shaped keel (22), a vertical wooden formwork (61), a narrow-side wooden formwork (21) and a T-shaped keel (22) arranged in sequence, or it includes a T-shaped keel (22), a vertical wooden formwork (61), a wide-side wooden formwork (31) and an h-shaped keel (32) arranged in sequence. The vertical wooden formwork (61) is perpendicular to and close to the inside corner of the beam, floor and wall panels and the narrow-side patching formwork (2) and the wide-side patching formwork (3). The inside corner of the vertical wooden formwork (61) and the narrow-side patching formwork (2) and the wide-side patching formwork (3) is fixed with reinforcing wooden squares (62). The wide-side patching formwork (3) is provided with secondary wooden square keels (63) at intervals.

6. The construction method of the non-standard layer aluminum-wood combined formwork keel modular construction system as described in any one of claims 1 to 5, characterized in that: S1: Lift the lifting and sealing device to the predetermined position: On the control panel of the pump station, input the target lifting height value H calculated based on the elevation measurement results, start the automatic leveling mode, the hydraulic pump station drives all hydraulic cylinders to move synchronously, the displacement sensor feeds back the height data to the control system in real time, the control system compares the measured height with the target height, and makes fine adjustments by adjusting the flow of each branch until the elevation of all support points is stable within the allowable range of H ± 1 mm, thus achieving high-precision synchronous leveling; S2: Locking Lifting and Sealing Device: First Lock: Hydraulic Self-Locking After the jacking is in place, the control system automatically closes the hydraulic check valve in the oil circuit, locking the hydraulic oil in the cylinder to form the first anti-settlement barrier. The pump station stops working, and the system enters the pressure holding state. Second lock: Mechanical hard lock: After confirming that the lock hole on the piston rod is aligned with the lock hole on the cylinder, insert the high-strength locking pin and install the anti-fall-off snap ring; Third layer horizontal lock: Install tie rods (46) to control the spacing between the side molds of the bottom seam on both sides; S3: Construction of non-standard aluminum-wood composite formwork: Construct standardized aluminum formwork (1), narrow joint patching formwork (2) and wide joint patching formwork (3) according to the predetermined design; Install standard aluminum S5 at the aluminum-wood composite part and pour concrete; S4: After demolding, the aluminum template, modular keel and adjustable bottom mold device can be reused.

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