Matching prefabrication mold for grid beam and construction method thereof

Abstract

The present invention provides a matching prefabrication mold for a grid beam and a construction method thereof. A bottom mold is arranged on a movable trolley, and the movable trolley is arranged on a track; one end of the bottom mold is provided with a fixed end mold base while the other end thereof is provided with a movable end mold base; outer mold bases are arranged on both sides of the bottom mold, and the outer mold bases on the both sides and the movable end mold base are all connected to a formwork by demolding screws; and a movable core mold base is further arranged in the bottom mold. Through reasonable mold structure design such as the connecting mode of all components and the arrangement of the demolding screws, the assembling, adjustment, demolding and other operations on the mold are more convenient and efficient, thereby reducing the workload of the workers and improving the construction efficiency during a construction process.

Description

Cross beam matching prefabrication mold and construction method thereof TECHNICAL FIELD

[0001] The present application relates to the field of port cross beam construction, in particular to a cross beam matching prefabrication mold and construction method thereof. BACKGROUND

[0002] In the construction of large water slides in China, pier table type slides and cross beam type slides are two common types. Cross beam type slides have obvious advantages in many aspects. In terms of economy, they may be more reasonable in material use and construction cost than other types of slides, which can effectively reduce construction cost. From the perspective of construction risk, their structural design or construction process may reduce potential risks in the construction process and improve construction safety. In terms of construction period, their unique structure and construction process may help shorten the overall construction period. In terms of environmental protection, they may have less impact on the surrounding environment during construction and meet environmental protection requirements. However, the construction precision control of cross beam type slides is quite high, which is a major challenge. Cross beam construction precision includes two key parts: prefabrication precision and installation precision. Prefabrication precision relates to the dimensional accuracy and shape regularity of the cross beam during the prefabrication stage in the factory, while installation precision affects the matching degree of the cross beam with other structures during installation on site and the stability of the overall structure. Unfortunately, there is currently a lack of construction methods specifically for effectively controlling the prefabrication precision of cross beams in the field of building construction, which to some extent restricts the full play of the advantages of cross beam type slides and brings difficulties to the high-quality construction of related projects. SUMMARY

[0003] The main purpose of the present application is to provide a cross beam matching prefabrication mold and construction method thereof, which solves the problem of the lack of construction methods for effectively controlling the prefabrication precision of cross beams.

[0004] To solve the above technical problems, the technical solution adopted by the present application is as follows: a cross beam matching prefabrication mold, a bottom mold is arranged on a mobile trolley, the mobile trolley is arranged on a track, one end of the bottom mold is provided with a fixed end head mold frame, the other end is provided with a mobile end head mold frame, both sides of the bottom mold are provided with outer side mold frames, and the outer side mold frames on both sides and the mobile end head mold frame are connected with a mold plate through a demolding lead screw.

[0005] The bottom mold is further provided with a mobile inner core mold frame.

[0006] In the preferred scheme, the fixed end head mold frame is provided with fixed end head side mold plates on both sides of the end face, a fixed end inner concave mold plate is arranged between the fixed end head side mold plates on both sides, the fixed end inner concave mold plate is fixed on the fixed end head mold frame, a first wing mold plate is hinged on both sides of the fixed end head mold frame, and the first wing mold plate is connected with the fixed end head mold frame through a fourth demolding lead screw.

[0007] In the preferred embodiment, the top of the outer side frame is connected to the top of the side mold plate by a second stripper screw, the middle of the side mold plate is connected to the outer side frame by a third stripper screw, and the bottom of the side mold plate is connected to the hinged seat;

[0008] The hinged seat is provided with a waist-shaped hole, and the bottom of the side mold plate is arranged inside the waist-shaped hole.

[0009] In the preferred embodiment, the two sides of the moving end head frame are provided with moving side mold plates, and the same vertical line of the moving side mold plates is provided with at least two first stripper screws connected to the ground;

[0010] The two sides provided with the moving side mold plates are provided with a movable end concave mold frame.

[0011] In the preferred embodiment, the movable end concave mold frame includes a movable end concave mold plate, the two ends of the movable end concave mold plate are hingedly connected with third wing mold plates, the middle of the third wing mold plate is connected to the movable end concave mold plate by a plurality of fifth stripper screws, and the two sides of the fifth stripper screws are connected by a support;

[0012] The movable end concave mold plate of the movable end concave mold frame is connected to the mold plate of the moving inner core mold frame by a plurality of transverse pull rods.

[0013] In the preferred embodiment, the bottom of the moving inner core mold frame is placed on the bottom mold, the moving inner core mold frame includes two left inner core mold plates and right inner core mold plates, the two ends of the left inner core mold plate and the right inner core mold plate are hingedly connected with fourth wing mold plates, the end of the fourth wing mold plate is provided with an inclined angle block, and the wing mold plates of the left inner core mold plate and the right inner core mold plate are closed by two matched inclined angle blocks;

[0014] The fourth wing mold plate is connected to the left inner core mold plate by a plurality of sixth stripper screws, and the two sides of the fourth wing mold plate are connected by a plurality of support inner frames.

[0015] In the preferred embodiment, the left inner core mold plate and the right inner core mold plate are connected to the side mold plate of the outer side frame by a plurality of longitudinal pull rods.

[0016] In the preferred embodiment, a plurality of three-way jacks are further arranged on the two sides of the bottom of the moving trolley, and the three-way jacks are each provided with a supporting pad on one side;

[0017] The roller of the bottom of the moving trolley is further provided with a driving motor connected to the roller.

[0018] In the preferred embodiment, the cross beam prefabrication field should include: a steel bar processing area, a cross beam prefabrication area, a cross beam temporary storage area, and a cross beam temporary storage area;

[0019] The steel bar processing area is provided with a steel bar pedestal matched with the cross beam;

[0020] The cross beam special prefabrication field is provided with a portal crane, and the method comprises:

[0021] S1, the first set of mobile trolley is positioned, and is moved and positioned along the track axis direction, and the three-way jack is in place;

[0022] S2, the bottom mold is leveled through the three-way jack, and the vertical track axis direction and the elevation are leveled;

[0023] S3, the supporting pad is in place, the three-way jack is removed, and the supporting pad supports the entire mobile trolley;

[0024] S4, after the fixed end head mold frame is accurately positioned, the fixed end head side mold plate and the fixed end inner concave mold plate are installed;

[0025] S5, after the side mold plates of the two sets of outer side mold frames are accurately positioned, the side mold plates are installed;

[0026] S6, after the moving side mold plate of the moving end head mold frame is accurately positioned, the moving side mold plate is installed;

[0027] S7, the steel reinforcement cage is hoisted into the mold, and is fixed after accurate positioning and ensuring the thickness of the protective layer;

[0028] S8, after the left inner core mold plate and the right inner core mold plate of the moving inner core mold plate are accurately positioned, the left inner core mold plate and the right inner core mold plate are installed, then the movable end inner concave mold frame is installed through the transverse pull rod, and the movable end inner concave mold frame is connected and installed and fixed with the side mold plate through the longitudinal pull rod;

[0029] S9, the precast beam is poured, and after the strength meets the requirements, the two sets of outer side mold frames are removed, and the specific sequence is performed according to the principle of “installing later and removing earlier”;

[0030] S10, after the two sets of outer side mold frames and the moving inner core mold frame are removed, the three-way jack is in place, and the supporting pad is removed;

[0031] S11, the mobile trolley is lowered on the track by using the three-way jack;

[0032] S12, the precast beam that has been poured is moved to the matching beam position through the first mobile trolley;

[0033] The second set of mobile trolley is hoisted to the precast beam position by the portal crane, and the second set of trolley at the precast beam position is accurately positioned by repeating steps S1 to S3;

[0034] S13, the first mobile trolley at the matching beam position is adjusted by taking the second set of trolley at the precast beam position as a standard after accurate positioning, through steps S1 to S3, to achieve the purpose of matching the precast beam with the matching beam;

[0035] S14, the fixed end head mold frame, the two sets of outer side mold frames, the steel reinforcement cage, and the moving inner core mold frame are accurately positioned and installed by repeating steps S4 to S7, and the precast beam is poured by repeating step S9;

[0036] S15, when the strength of the matched beam reaches 75% of the design strength, the matched beam is transferred to the pre-assembled area of the cross beam by the lifting equipment for pre-assembly, and the first set of trolley is lifted to the side and installed at the precast beam;

[0037] S16, the precast beam support cushion block is removed and the precast beam segment is moved to the matched beam segment. The first set of trolley is lifted to the precast beam position by the gantry crane, and the steps of S1 to S9 are repeated to continue the construction of the next precast cross beam.

[0038] In the preferred embodiment, before the construction of each cross beam, the formwork system should be accurately positioned, and the positioning method of the formwork system should be combined with the formwork structure and process requirements. Fixed measurement control points are set, and the formwork and matched beam segment are adjusted to the preset fixed position through the plane position and elevation measurement of the measurement control points. The measurement and control of the measurement control points by the formwork are carried out by using a total station and a laser radar to scan the point cloud of the measurement control points, obtain three-dimensional point data, and detect whether the position of the formwork reaches the preset position according to artificial intelligence vision and total station positioning.

[0039] The method is:

[0040] A1, n fixed measurement control points are set on the construction site according to the formwork structure and process requirements; the points are scanned by using a total station and a laser radar to obtain three-dimensional coordinate data of each measurement control point P i (x i ,y i ,z i )(i=1,2,…,n); here, only the original data is obtained, and there is no specific formula derivation; these data are the basis for subsequent calculation and are used to determine the reference of the entire positioning system;

[0041] A2, m reference points Q j (X j ,Y j ,Z j )(j=1,2,…,m) on the formwork are identified by using artificial intelligence vision technology, and the actual coordinates thereof are measured by using a total station; similarly, this step is mainly to obtain data; the data of the formwork reference points will be used for comparative analysis with the measurement control point data to determine the position state of the formwork;

[0042] A3, a relative coordinate matrix is constructed: the relative coordinate vector of each formwork reference point Q j with respect to each measurement control point P i is calculated Let the components of the relative coordinate vector in the x, y, and z directions be r ijx ,r ijy ,r ijz , respectively; then: r ijx =X j -xi ; r ijy =Y j -y i ; r ijz =Z j -z i ;

[0043] Relative coordinate matrix Each row corresponds to the relative coordinate vector between a measurement control point and all template reference points; the purpose of this matrix is ​​to comprehensively describe the positional relationship between the template reference points and the measurement control points, which facilitates various positional analyses and judgments in the future.

[0044] Calculate the relative distance matrix D = [d] based on the relative coordinate vectors. ij ] n×m The relative distance d ij Calculate using the following formula:

[0045] This formula is used to accurately quantify the spatial distance between each template reference point and the measurement control point. By analyzing this distance matrix, we can intuitively understand the positional deviation of the template in space, which is an important basis for judging whether the template has reached the preset position.

[0046] A4. Template Position Determination Stage: For each template reference point Q j Calculate its average relative distance with respect to all measurement control points.

[0047] Average relative distance vector This vector comprehensively reflects the overall distance between each template reference point and the measurement control point. By comparing it with the preset threshold, it can be preliminarily determined whether the position of the template meets the requirements.

[0048] Calculate the position deviation vector Relative to the ideal position; let the average position of the measurement control points be P. avg (x avg ,y avg ,z avg ),in:

[0049] The components of the position deviation vector in the x, y, and z directions are: Δ jx =X j -x avg ; Δ jy =Y j -y avg ; Δ jz =Z j -z avg ;

[0050] Position deviation vector This vector can be used to further analyze the direction and magnitude of the deviation of the template reference point from the ideal position, providing more detailed information for template adjustment;

[0051] A5. Template Position Determination: Set a position deviation threshold ò; if for all template reference points j = 1, 2, ..., m, then... and Where δ is the directional deviation threshold, then the template is considered to have reached the preset position;

[0052] Otherwise, the template position does not meet the requirements and needs to be adjusted. By comprehensively considering the average relative distance and the magnitude of the position deviation vector, we can more comprehensively and accurately determine whether the template position is qualified.

[0053] A6. Template Position Adjustment Stage:

[0054] For template reference point Q that has not reached the preset position j Calculate the adjustment vector Assuming the adjustment strategy is to adjust in the opposite direction of the position deviation vector, and the adjustment amount is proportional to the deviation amount, then: t jx =-kΔ jx ; t jy =-kΔ jy ; t jz =-kΔ jz ;

[0055] This adjustment vector clarifies the amount that the template reference point needs to be adjusted in each direction. Based on this vector, construction workers can be guided to make precise adjustments to the template.

[0056] The template is adjusted based on the calculated adjustment vector. After the adjustment is completed, the data acquisition and preprocessing stage, the relative position relationship calculation stage, and the template position judgment stage are repeated to re-detect the template position until the template reaches the preset position.

[0057] This invention provides a precast mold for matching grid beams and its construction method, which reduces the labor intensity of workers. Through a reasonable mold structure design, such as the connection method of each component and the setting of the demolding screw, the assembly, adjustment, and demolding operations of the mold are more convenient and efficient, thereby reducing the labor intensity of workers during construction and improving construction efficiency. At the same time, the coordinated work of the mold's moving trolley, three-way jacks, and other components also helps to achieve precise construction, further optimizing the construction process and indirectly reducing the workload of workers. Attached Figure Description

[0058] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0059] Figure 1 is an elevation view of the grid beam trolley and formwork system of the present invention;

[0060] Figure 2 is a plan view of the grid beam trolley and formwork system of the present invention;

[0061] Figure 3 is a side view of the grid beam trolley and formwork system of the present invention;

[0062] Figure 4 is a schematic diagram of the positioning of the trolley and jack of the present invention;

[0063] Figure 5 is a structural diagram of the template of the present invention after disassembly;

[0064] Figure 6 is a structural diagram of the template of the present invention after the side template is disassembled;

[0065] Figure 7 is a structural diagram of the installation of the two end templates of the present invention;

[0066] Figure 8 is a structural diagram of the movable inner core mold frame of the present invention;

[0067] Figure 9 is a diagram of the hoisting structure of the grid beam of the present invention;

[0068] Figure 10 is a diagram of the bottom mold hoisting structure of the present invention.

[0069] In the figure: bottom mold 1; fixed end mold frame 2; fixed end side template 201; fixed end concave template 202; first wing template 203; fourth demolding screw 204;

[0070] Outer mold frame 3; side template 301; hinge seat 302; second demolding screw 303; third demolding screw 304;

[0071] 4. Moving end mold frame; 401 first demolding screw; 402 moving side template;

[0072] 5. Movable inner core mold frame; 501. Left inner core template; 502. Supporting inner frame; 503. Sixth demolding screw; 504. Fourth wing template; 505. Angled block; 506. Right inner core template;

[0073] Support 6; Three-way jack 7; Mobile trolley 8; Drive motor 801; Track 9;

[0074] 10. Movable end concave mold frame; 1001. Third wing template; 1002. Fifth demolding screw; 1003. Movable end concave template;

[0075] 11. Horizontal tie rod; 12. Longitudinal tie rod; 13. Lifting equipment. Detailed Implementation

[0076] Example 1

[0077] As shown in Figures 1-10, a precast mold for matching grid beams is provided. The bottom mold 1 is set on a moving trolley 8, which is set on a track 9. One end of the bottom mold 1 is provided with a fixed end mold frame 2, and the other end is provided with a moving end mold frame 4. Both sides of the bottom mold 1 are provided with outer mold frames 3. Both the outer mold frames 3 and the moving end mold frames 4 are connected to the template through demolding screws.

[0078] The bottom mold 1 is also equipped with a movable inner core mold frame 5.

[0079] In the preferred embodiment, fixed end side templates 201 are provided on both sides of the end face of the fixed end mold frame 2, and a fixed end concave template 202 is provided between the two fixed end side templates 201. The fixed end concave template 202 is fixed on the fixed end mold frame 2. A first wing template 203 is hinged to both sides of the fixed end mold frame 2. The first wing template 203 is connected to the fixed end mold frame 2 through a fourth demolding screw 204.

[0080] In the preferred embodiment, the top of the outer mold frame 3 is connected to the top of the side template 301 via the second demolding screw 303, the middle position of the side template 301 is connected to the outer mold frame 3 via the third demolding screw 304, and the bottom of the side template 301 is connected to the hinge seat 302.

[0081] The hinge seat 302 is provided with a waist-shaped hole, and the bottom of the side template 301 is set inside the waist-shaped hole.

[0082] In the preferred embodiment, movable side templates 402 are provided on both sides of the movable end mold frame 4, and at least two first demolding screws 401 are provided on the same vertical line of the movable side templates 402 to connect with the ground;

[0083] A movable side template 402 is provided on both sides, and an inner concave mold frame 10 with movable end is provided between them.

[0084] In the preferred embodiment, the movable end concave mold frame 10 includes a movable end concave template 1003, with a third wing template 1001 hinged at both ends of the movable end concave template 1003. The middle part of the third wing template 1001 is connected to the movable end concave template 1003 through a plurality of fifth demolding screws 1002, and the fifth demolding screws 1002 on both sides are connected by a bracket.

[0085] The movable end concave template 1003 of the movable end concave mold frame 10 is connected to the template of the movable inner core mold frame 5 by multiple horizontal tie rods 11.

[0086] In the preferred embodiment, the movable inner core mold frame 5 rests against the bottom mold 1. The movable inner core mold frame 5 includes two left inner core templates 501 and a right inner core template 506. Both ends of the left inner core template 501 and the right inner core template 506 are hinged with a fourth wing template 504. The end of the fourth wing template 504 is provided with a beveled block 505. The wing templates of the left inner core template 501 and the right inner core template 506 are closed by two cooperating beveled blocks 505.

[0087] The fourth wing template 504 is connected to the left inner core template 501 through multiple sixth demolding screws 503, and the fourth wing templates 504 on both sides are connected through multiple supporting inner frames 502.

[0088] In the preferred embodiment, the left inner core template 501 and the right inner core template 506 are connected to the side template 301 of the outer mold frame 3 by multiple longitudinal tie rods 12.

[0089] In the preferred embodiment, the bottom sides of the mobile trolley 8 are also equipped with multiple three-way jacks 7, and each of the three-way jacks 7 has a support pad 6 on one side.

[0090] The rollers at the bottom of the mobile trolley 8 are also equipped with a drive motor 801, which is connected to the rollers.

[0091] The mobile trolley 8 provides mobility for the entire mold. The rollers are driven by the drive motor 801 to move on the track 9, which facilitates the conversion of the mold between different construction positions.

[0092] The three-way jack 7 is used to adjust the level and elevation of the bottom mold 1 to ensure the accuracy of mold installation. During the mold positioning process, the bottom mold 1 is first leveled using the three-way jack 7. After leveling the vertical track axis and elevation, the support 6 is positioned to support the entire moving trolley 8, and then the three-way jack 7 is removed.

[0093] The fixed end formwork 2, the outer formwork 3, and the movable end formwork 4 are all connected to the corresponding templates via release screws. The release screws facilitate the removal of the templates after the concrete has been poured and formed. For example, the outer formwork 3 is connected to the side template 301 via the second release screw 303 and the third release screw 304, which ensures the stability of the template during pouring and facilitates demolding.

[0094] The special structural design of the movable inner core mold frame 5, such as the cooperation of the hinged fourth wing template 504 and the angled block 505, allows it to operate flexibly during mold assembly and demolding. At the same time, it is connected to the movable end inner concave mold frame 10 through the transverse tie rod 11 and to the side template 301 of the outer mold frame 3 through the longitudinal tie rod 12, which enhances the integrity and stability of the entire mold structure.

[0095] The structural design of the movable end concave mold frame 10, through the connection between the third wing template 1001 and the movable end concave template 1003 and the connection with the movable inner core mold frame 5, plays a specific forming and connecting role in the mold, ensuring that the shape and structure of the grid beam in the prefabrication process meet the design requirements.

[0096] Example 2

[0097] To further illustrate with reference to Example 1, as shown in Figures 1-10, the prefabrication yard for grid beams should include: a steel bar processing area, a grid beam prefabrication area, a grid beam pre-assembly area, and a grid beam temporary storage area.

[0098] The steel bar processing area is equipped with steel bar support pedestals that match the grid beams;

[0099] The prefabrication yard for the grid beams is equipped with a gantry crane 13. The method includes:

[0100] S1. The first set of mobile trolleys 8 are positioned and moved along the axis of track 9. The three-way jacks 7 are in place.

[0101] S2. Level the bottom mold 1 using the three-way jack 7, adjusting the vertical track axis direction and elevation.

[0102] S3, support 6 is in place, remove the three-way jack 7, support 6 supports the entire mobile trolley 8;

[0103] S4. After the fixed end edge template 201 and the fixed end concave template 202 of the fixed end template frame 2 are accurately positioned, they are installed.

[0104] S5. The side templates 301 of the two sets of outer formwork frames 3 are precisely positioned and then installed.

[0105] S6. After the mobile side template 402 of the mobile end mold frame 4 is precisely positioned, it is installed.

[0106] S7. The steel cage is hoisted into the formwork, precisely positioned, and fixed after ensuring the thickness of the protective layer.

[0107] S8. After the left inner core template 501 and right inner core template 506 of the movable inner core template 5 are accurately positioned, they are installed. Then, the movable end inner concave mold frame 10 is installed through the horizontal tie rod 11, and connected and fixed to the side template 301 through the longitudinal tie rod 12.

[0108] S9. After the precast beams have reached the required strength, remove the two sets of outer formwork 3. The specific order should follow the principle of "removing the last one installed first".

[0109] S10. After the two sets of outer mold frames 3 and the movable inner core mold frame 5 are removed, the three-way jack 7 is in place and the support pad 6 is removed.

[0110] S11. Using the three-way jack 7, lower the mobile trolley 8 onto the track 9;

[0111] S12. Move the cast precast beam to the matching beam position using the first moving trolley 8.

[0112] The second set of mobile trolleys is lifted to the precast beam position by a gantry crane. Steps S1 to S3 are repeated to accurately position the second set of trolleys at the precast beam.

[0113] S13. The first moving trolley 8 at the matching beam is adjusted according to the second trolley at the precast beam after precise positioning, through steps S1 to S3, so as to achieve the purpose of matching the precast beam with the matching beam.

[0114] S14. Repeat steps S4 to S7 to accurately position and install the fixed end formwork 2, the two sets of outer formwork 3, the steel cage, and the movable inner core formwork 5. Repeat step S9 to pour the precast beam.

[0115] S15. When the strength of the beam to be matched reaches 75% of the design strength, it is transferred to the grid beam pre-assembly area by the lifting equipment 13 for pre-assembly. The first set of trolleys 1 is lifted to the side to be installed on the precast beam.

[0116] S16. Remove the precast beam support pads and move the precast beam segment to the matching beam segment. Use a gantry crane to lift the first set of trolley 1 to the precast beam position, and repeat steps S1 to S9 to continue the construction of the next precast grid beam.

[0117] 1. Advantages of the construction process

[0118] The construction process is systematic and orderly. Starting with the positioning of the mobile trolley 8, the bottom formwork 1 is leveled and the support 6 is positioned in sequence. Each step is closely connected.

[0119] After the first set of mobile trolleys 8 is precisely positioned along the axis of track 9 and the three-way jacks 7 are in place, the level and elevation of the bottom mold 1 are precisely adjusted by the three-way jacks 7. Then, the mobile trolleys 8 are supported by the support pads 6, which ensures the stability of the mold installation foundation, provides a precise benchmark for subsequent template installation, reduces the accumulation of errors caused by uneven or unstable foundations, and improves the overall construction accuracy.

[0120] The template is installed in the order of fixed end formwork 2, outer formwork 3, and movable end formwork 4, with precise positioning and installation. After the steel cage is hoisted into the formwork and precisely positioned to ensure the thickness of the protective layer, it is fixed. Finally, the movable inner core formwork 5 and related connecting parts are installed. This sequence helps to ensure the accurate position of each component in the mold and to guarantee the structural integrity and dimensional accuracy of the grid beam.

[0121] After concrete pouring, the formwork should be removed following the principle of "removing the last installed formwork first". This helps protect the already formed precast beam structure, avoids damage to the beam due to improper removal sequence, and also facilitates the removal of formwork, thus improving the turnover efficiency of the formwork.

[0122] The precast beams that have been poured are moved to the matching beam positions using the mobile trolley 8. The first set of mobile trolleys 8 is then adjusted based on the second set of trolleys that have been precisely positioned, so as to achieve precise matching between the precast beams and the matching beams. This ensures the connection accuracy between the grid beams and improves the stability and reliability of the overall structure.

[0123] Pre-assembly is carried out after the strength of the matching beam reaches 75% of the design strength. The lifting and reuse of the trolley is arranged in a reasonable manner, which improves the utilization rate of construction equipment. At the same time, the pre-assembly process helps to discover and solve potential problems in advance, further ensuring construction quality.

[0124] 2. Advantages of synergy with mold structure

[0125] The structural features of each component in the mold are coordinated with the construction methods. For example, the outer mold frame 3 and the side template 301 are connected by demolding screws at specific positions. This ensures the stability of the side template 301 during pouring and facilitates its removal at appropriate times according to the construction process. The connection between the movable inner core mold frame 5 and other components, such as the connection between the transverse tie rod 11 and the movable end concave mold frame 10, and the connection between the longitudinal tie rod 12 and the side template 301 of the outer mold frame 3, ensures the coordinated work of each component at different construction stages, guaranteeing the integrity and stability of the mold structure, thereby improving the accuracy and quality of the prefabrication of the grid beam.

[0126] The three-way jack 7 and drive motor 801 at the bottom of the mobile trolley 8 play a crucial role in the construction process. The three-way jack 7 ensures precise leveling of the bottom mold 1, while the drive motor 801 facilitates the movement of the mobile trolley 8 on the track 9, making the conversion of the mold between different areas of the prefabrication yard more convenient and efficient. This is closely integrated with the entire construction process and improves construction efficiency.

[0127] Example 3

[0128] Further explanation based on Embodiment 2: As shown in Figures 1-10, before constructing each grid beam, the formwork system should be precisely positioned. The positioning method of the formwork system should be combined with the formwork structure and process requirements, setting fixed measurement control points. By measuring the plane position and elevation of the measurement control points, the formwork and matching beam segments are adjusted to the preset fixed positions. The measurement and control of the formwork at the measurement control points is achieved by using a total station and LiDAR to scan the control points to obtain three-dimensional point data. Based on artificial intelligence vision and total station positioning, the position of the formwork is detected to ensure that it has reached the preset position.

[0129] The method is as follows:

[0130] A1. Set up n fixed measurement control points at the construction site according to the formwork structure and process requirements; use a total station and lidar to scan these points to obtain the measurement control point P for each point. i (x i ,y i ,z i The three-dimensional coordinate data (i = 1, 2, ..., n) are obtained here; this is just the raw data acquisition without specific formula derivation; these data are the basis for subsequent calculations and are used to determine the benchmark of the entire positioning system.

[0131] A2. Use artificial intelligence vision technology to identify m reference points Q on the template. j (X j ,Y j Z j (j=1,2,…,m), and use a total station to measure its actual coordinates; similarly, this step mainly involves acquiring data; the data of these template reference points will be used to compare and analyze with the measurement control point data to determine the position and status of the template;

[0132] A3. Construct the relative coordinate matrix: Calculate the reference point Q for each template. j Relative to each measurement control point P i relative coordinate vector Let the components of the relative coordinate vector in the x, y, and z directions be r, , and r, respectively. ijx ,r ijy ,r ijz Then: r ijx =X j -x i ; r ijy =Y j -y i ; r ijz =Z j -z i ;

[0133] Relative coordinate matrix Each row corresponds to the relative coordinate vector between a measurement control point and all template reference points; the purpose of this matrix is ​​to comprehensively describe the positional relationship between the template reference points and the measurement control points, which facilitates various positional analyses and judgments in the future.

[0134] Calculate the relative distance matrix D = [d] based on the relative coordinate vectors. ij ] n×m The relative distance d ij Calculate using the following formula:

[0135] This formula is used to accurately quantify the spatial distance between each template reference point and the measurement control point. By analyzing this distance matrix, we can intuitively understand the positional deviation of the template in space, which is an important basis for judging whether the template has reached the preset position.

[0136] A4. Template Position Determination Stage: For each template reference point Q j Calculate its average relative distance with respect to all measurement control points.

[0137] Average relative distance vector This vector comprehensively reflects the overall distance between each template reference point and the measurement control point. By comparing it with the preset threshold, it can be preliminarily determined whether the position of the template meets the requirements.

[0138] Calculate the position deviation vector Relative to the ideal position; let the average position of the measurement control points be P. avg (x avg ,y avg ,z avg ),in:

[0139] The components of the position deviation vector in the x, y, and z directions are: Δ jx =X j -x avg ; Δ jy =Y j -y avg ; Δ jz =Z j -z avg ;

[0140] Position deviation vector This vector can be used to further analyze the direction and magnitude of the deviation of the template reference point from the ideal position, providing more detailed information for template adjustment;

[0141] A5. Template Position Determination: Set a position deviation threshold ò; if for all template reference points j = 1, 2, ..., m, then... and Where δ is the directional deviation threshold, then the template is considered to have reached the preset position;

[0142] Otherwise, the template position does not meet the requirements and needs to be adjusted. By comprehensively considering the average relative distance and the magnitude of the position deviation vector, we can more comprehensively and accurately determine whether the template position is qualified.

[0143] A6. Template Position Adjustment Stage:

[0144] For template reference point Q that has not reached the preset position j Calculate the adjustment vector Assuming the adjustment strategy is to adjust in the opposite direction of the position deviation vector, and the adjustment amount is proportional to the deviation amount, then: t jx =-kΔ jx ; t jy =-kΔ jy ; t jz =-kΔ jz This adjustment vector clarifies the amount that the template reference point needs to be adjusted in each direction. Based on this vector, construction workers can be guided to make precise adjustments to the template.

[0145] The template is adjusted based on the calculated adjustment vector. After the adjustment is completed, the data acquisition and preprocessing stage, the relative position relationship calculation stage, and the template position judgment stage are repeated to re-detect the template position until the template reaches the preset position.

[0146] 1. Advantages of the accuracy and comprehensiveness of the positioning method

[0147] By setting fixed measurement control points based on the template structure and process requirements, and acquiring 3D point data using a total station and LiDAR, combined with artificial intelligence vision and total station positioning to detect the template position, this multi-technology fusion approach greatly improves positioning accuracy. Point cloud scanning by the total station and LiDAR accurately acquires the 3D coordinates of the measurement control points, providing high-precision foundational data for subsequent calculations. For example, this detailed and accurate 3D coordinate data is like establishing a precise 3D coordinate system for the construction site, allowing the template position to be accurately located and analyzed within this coordinate system.

[0148] Artificial intelligence vision technology identifies reference points on the template, supplementing total station measurements. By acquiring template information from different angles, the combination of the two can provide a more comprehensive understanding of the template's status, avoiding potential errors or blind spots that may exist with a single measurement method, and further improving the reliability of positioning and detection.

[0149] 2. The scientific advantages of algorithmic computation

[0150] A relative coordinate matrix and a relative distance matrix are constructed, and the positional relationship between the template reference point and the measurement control point is analyzed through a series of calculations. The formula for calculating the relative coordinate vector r is... ijx =X j -x i r ijy =Y j -y i r ijz =Z j -z i and the relative distance formula It can accurately quantify the spatial distance between each template reference point and the measurement control point. This allows construction personnel to intuitively understand the positional deviation of the template in space from the data, providing a scientific and accurate basis for judging whether the template has reached the preset position.

[0151] During the template location determination phase, the average relative distance is calculated. The calculation of the position deviation vector comprehensively considers the relationship between the template reference point and multiple measurement control points, evaluating the template position from multiple dimensions, both overall and local. By comparing the average relative distance and the magnitude of the position deviation vector with preset thresholds, this comprehensive judgment method can more accurately determine whether the template meets the requirements, reduce the possibility of misjudgment, and ensure construction accuracy.

[0152] 3. The advantages of the rationality of the adjustment strategy

[0153] For template reference points that have not reached the preset position, the method for calculating the adjustment vector is reasonable. Assume the adjustment strategy follows the opposite direction of the position deviation vector and the adjustment amount is proportional to the deviation amount (e.g., t). jx =-kΔ jx t jy =-kΔ jy t jz =-kΔ jz This method can accurately calculate the adjustment amount based on the actual deviation of the template, making template adjustment more targeted and effective. Construction workers can use these calculation results to precisely adjust the template, quickly adjusting it to the preset position, improving construction efficiency, and ensuring that the positional accuracy of the adjusted template meets the requirements.

[0154] The mechanism for re-inspection after adjustment is improved, forming a closed-loop control through stages such as repeated data collection and preprocessing, relative position calculation, and template position judgment. This ensures that the template can ultimately reach the preset position, guarantees the accuracy of the template system positioning before the construction of each grid beam, thereby improving the overall quality and precision of the grid beam construction and laying a solid foundation for subsequent construction procedures.

[0155] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A lattice beam matching preform mold characterized by: The bottom die (1) is arranged on a mobile trolley (8) arranged on a track (9), one end of the bottom die (1) is provided with a fixed end die frame (2), the other end is provided with a mobile end die frame (4), both sides of the bottom die (1) are provided with outer side die frames (3), and the outer side die frames (3) and the mobile end die frame (4) are connected with the die plate through stripping screw rods.

2. The match precast form for a H-shaped beam according to claim 1, wherein: The fixed end die frame (2) is provided with fixed end side die plates (201) on both sides of the end face, and the fixed end side die plates (201) are arranged between the fixed end die frame (2) and the fixed end inner concave die plate (202).

3. The match cast form for a H-Beam according to claim 1, wherein: The outer side die frame (3) is connected with the side die plate (301) at the top through a second stripping screw rod (303), the side die plate (301) is connected with the outer side die frame (3) at the middle position through a third stripping screw rod (304), and the side die plate (301) is connected with the hinged seat (302) at the bottom. The hinged seat (302) is provided with a waist-shaped hole, and the bottom of the side die plate (301) is arranged in the waist-shaped hole.

4. The match cast form for a H-Beam according to claim 1 wherein: The mobile end die frame (4) is provided with mobile side die plates (402) on both sides, and at least two first stripping screw rods (401) are arranged on the same vertical line of the mobile side die plates (402) and connected with the ground; and the mobile end die frame (4) is provided with a movable end inner concave die frame (10) between the mobile side die plates (402).

5. The match cast form for a plus sign shaped beam according to claim 4, wherein: The movable end inner concave die frame (10) comprises a movable end inner concave die plate (1003), and the movable end inner concave die plate (1003) is hinged with third wing die plates (1001) at both ends. The movable end inner concave die plate (1003) of the movable end inner concave die frame (10) is connected with the die plate of the mobile inner core die frame (5) through a plurality of transverse pull rods (11).

6. The match cast form for a plus sign shaped beam according to claim 1, wherein: The bottom of the mobile inner core die frame (5) is arranged on the bottom die (1), the mobile inner core die frame (5) comprises two left inner core die plates (501) and a right inner core die plate (506), both ends of the left inner core die plate (501) and the right inner core die plate (506) are hinged with fourth wing die plates (504), and the end of the fourth wing die plate (504) is provided with an inclined angle block (505). The fourth wing die plate (504) is connected with the left inner core die plate (501) through a plurality of sixth stripping screw rods (503), and the fourth wing die plates (504) on both sides are connected through a plurality of supporting inner frames (502).

7. The match-cut precast form for a H-Beam according to claim 6, wherein: The left inner core die plate (501) and the right inner core die plate (506) are connected with the side die plate (301) of the outer side die frame (3) through a plurality of longitudinal pull rods (12).

8. The match cast form for a plus sign shaped beam according to claim 1, wherein: The mobile trolley (8) is further provided with a plurality of three-way jacks (7) on both sides of the bottom, and each of the three-way jacks (7) is provided with a supporting pad (6); The rollers at the bottom of the mobile trolley (8) are further provided with a driving motor (801), and the driving motor (801) is connected with the rollers.

9. The method of claim 1-7, wherein the method further comprises: The H-beam prefabrication yard should include: a steel bar processing area, an H-beam prefabrication area, an H-beam temporary storage area, and an H-beam temporary storage area. The steel bar processing area is provided with a steel bar pedestal matched with the H-beam; The H-beam prefabrication yard is provided with a portal crane (13), and the method comprises the following steps: S1, the first set of mobile trolleys (8) is positioned and moved along the axis direction of the track (9), and the three-way jacks (7) are in place; S2, the bottom die (1) is leveled by the three-way jacks (7), and the leveling is perpendicular to the axis direction of the track and the elevation; S3, the supporting pad (6) is in place, the three-way jacks (7) are removed, and the supporting pad (6) supports the entire mobile trolley (8); S4, after the fixed end head formwork (2) and the fixed end inner concave formwork (202) are accurately positioned, the fixed end head formwork (2) is installed; S5, after the side formworks (301) of the two sets of outer side formworks (3) are accurately positioned, the side formworks (301) are installed; S6, after the moving side formwork (402) of the moving end head formwork (4) is accurately positioned, the moving side formwork (402) is installed; S7, the reinforcement cage is hoisted into the mold, accurately positioned, and fixed after ensuring the thickness of the protective layer; S8, after the left inner core formwork (501) and the right inner core formwork (506) of the moving inner core formwork (5) are accurately positioned, the left inner core formwork (501) and the right inner core formwork (506) are installed, and then the movable end inner concave formwork (10) is installed through the transverse pull rod (11), and the side formwork (301) is connected and installed through the longitudinal pull rod (12); S9, the prefabricated beam is poured, and after the strength reaches the requirement, the two sets of outer side formworks (3) are removed, and the specific sequence is performed according to the principle of "installing later and removing earlier"; S10, after the two sets of outer side formworks (3) and the moving inner core formwork (5) are removed, the three-way jacks (7) are in place, and the supporting pad (6) is removed; S11, the mobile trolley (8) is lowered on the track (9) by using the three-way jacks (7); S12, the prefabricated beam that has been poured is moved to the matching beam position by the first mobile trolley (8); The second mobile trolley is hoisted to the prefabricated beam position by the portal crane, and steps S1 to S3 are repeated to accurately position the second mobile trolley at the prefabricated beam position; S13, the first mobile trolley (8) at the matching beam position is adjusted by steps S1 to S3 according to the accurately positioned second mobile trolley at the prefabricated beam position, so as to match the prefabricated beam with the matching beam; S14, steps S4 to S7 are repeated to accurately position and install the fixed end head formwork (2), the two sets of outer side formworks (3), the reinforcement cage, and the moving inner core formwork (5), and step S9 is repeated to pour the prefabricated beam; S15, after the strength of the matching beam reaches 75% of the design strength, the matching beam is transferred to the H-beam prefabrication area for prefabrication by the hoisting equipment (13), and the first trolley (1) is hoisted to one side and then installed at the prefabricated beam position. S16, remove the precast beam support cushion and move the precast beam segment to the matching beam segment. The first set of trolley (1) is lifted to the precast beam position by the gantry crane, and the steps of S1 to S9 are repeated to continue the construction of the next precast box girder.

10. The method of claim 9, wherein the method further comprises: Before the construction of each box girder, the formwork system should be accurately positioned. The positioning method of the formwork system should be combined with the formwork structure and process requirements. Fixed measurement control points are set. Through the plane position and elevation measurement of the measurement control points, the formwork and matching beam segment are adjusted to the preset fixed position. The measurement control points of the formwork are scanned by a total station and a laser radar to obtain three-dimensional point data. According to artificial intelligence vision and total station positioning, whether the position of the formwork reaches the preset position is detected. The method is: A1, Set up n fixed measurement control points according to the template structure and process requirements at the construction site; use total station and laser radar to scan these points to obtain the three-dimensional coordinate data of each measurement control point P i (x i ,y i ,z i )(i = 1, 2, …, n); here is only the acquisition of raw data, without specific formula derivation; these data are the basis for subsequent calculation, used to determine the reference of the entire positioning system; A2, using artificial intelligence vision technology to identify m reference points Q on the template j (X j ,Y j ,Z j )(j = 1, 2, …, m), and measure their actual coordinates using a total station Similarly, this step is mainly to obtain data; the data of these formwork reference points will be used for comparative analysis with the measurement control point data to determine the position state of the formwork; A3. Build the relative coordinate matrix: calculate the relative coordinate vector of each template reference point Q with respect to each measurement control point P j i ​​ Let the components of the relative coordinate vector in the x, y, z directions be r ijx , r ijy , r ijz , then: r ijx = X j - x i ; r ijy = Y j - y i ; r ijz = Z j - z i ; Relative coordinate matrix Each row corresponds to the relative coordinate vector of a measurement control point and all formwork reference points. This matrix comprehensively describes the position relationship of the formwork reference points relative to the measurement control points, which is convenient for subsequent various position analysis and judgment; The relative distance matrix D = [d ij ] n×m where the relative distance d ij is calculated using the following formula: This formula is used to accurately quantify the spatial distance between each formwork reference point and the measurement control point. By analyzing this distance matrix, the position deviation of the formwork in space can be intuitively understood, which is an important basis for judging whether the formwork reaches the preset position; A4. Template position determination phase: for each template reference point Q j , compute its average relative distance with respect to all the measured control points Average relative distance vector This vector comprehensively reflects the overall distance between each formwork reference point and the measurement control point. By comparing it with the preset threshold, the position of the formwork can be preliminarily judged whether it meets the requirements; Computing a position bias vector with respect to the ideal position; let the average position of the measured control points be P avg (x avg ,y avg ,z avg ), wherein: The components of the position deviation vector in the x, y, and z directions are: Δ jx = X j - x avg ; Δ jy = Y j - y avg ; Δ jz = Z j - z avg ; Position deviation vector This vector can further analyze the deviation direction and size of the formwork reference points relative to the ideal position, providing more detailed information for formwork adjustment; A5. Template position determination: Set position deviation threshold value θ; if for all template reference points j = 1, 2,..., m, there are and Where δ is the direction deviation threshold, and it is considered that the formwork reaches the preset position; Otherwise, the position of the formwork does not meet the requirements and needs to be adjusted; here, by comprehensively considering the average relative distance and the length of the position deviation vector, the formwork position can be more accurately judged whether it is qualified; A6, formwork position adjustment stage: For template reference points Q that do not reach the preset position j , a correction vector is calculated Suppose the adjustment strategy is to adjust in the opposite direction of the position deviation vector, and the adjustment amount is proportional to the deviation amount, then: t jx = -kΔ jx ; t jy = -kΔ jy ; t jz = -kΔ jz ; This adjustment vector clearly indicates the amount of adjustment that the formwork reference points need in each direction. According to this vector, construction personnel can accurately adjust the formwork; According to the calculated adjustment vector, the formwork is adjusted. After the adjustment is completed, the data collection and preprocessing stage, the relative position relationship calculation stage, and the formwork position judgment stage are repeated again to re-detect the position of the formwork until the formwork reaches the preset position.