A self-propelled integral hydraulic formwork equipment for prefabricating T-beams
By designing self-propelled integral hydraulic formwork equipment for prefabricated T-beams, the problem of unsmooth surface of traditional prefabricated T-beams is solved, efficient and automated formwork assembly and disassembly and position transfer are achieved, and production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202110397106.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-04-13
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2041-04-13
AI Technical Summary
The surface of the traditional prefabricated T-shaped beam is not smooth and smooth, and has defects such as bumps, making it difficult to meet the requirements of factory production, intelligent management and standardized construction of the beam prefabricated factory.
It provides a self-propelled integral hydraulic formwork equipment for prefabricated T-beams, including formwork components, support and reinforcement components, walking systems, steel pedestal structures and hydraulic systems. Through the power drive of the hydraulic system and the automatic mold transfer of the walking system, the formwork can be quickly installed, disassembled and position transfer.
It improves the production efficiency of prefabricated T-shaped beams, ensures product quality, reduces manual operation and lifting risks, realizes efficient reuse of formwork, and is suitable for the universality of different beam types.
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Figure CN113103410B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of road and bridge construction, in particular to a self-propelled integral hydraulic formwork device for prefabricating T-beams. Background Art
[0002] With the rapid development of my country's economy and the implementation of highway network planning and construction, my country has ushered in another peak period of highway construction. In the construction of highways, factory prefabrication of bridge beams and slabs is an important measure to speed up bridge construction progress and save investment. Therefore, the number of bridge prefabrication sites has also increased rapidly.
[0003] The formwork is a commonly used structure for prefabricated T-beams and other beams and slabs. Among them, hydraulic formwork has obvious advantages over ordinary steel formwork. In order to improve product quality, T-beam prefabricated hydraulic formwork stands out in actual production applications. It has obvious advantages in safety, quality, efficiency and economy, and has been widely promoted and applied.
[0004] Compared with traditional concrete pedestals, the modular steel pedestals have pre-set pre-arch and pedestal connection embedded parts during foundation construction. The steel pedestals are installed in modules, allowing the foundation and pedestal to be constructed simultaneously. It has the advantages of fast transfer, fast installation, dismantling, reuse, and reduced waste of raw materials. In order to create a standard intelligent beam yard, modular steel pedestals are widely used.
[0005] In order to meet the requirements of "factory production, intelligent management, and standardized construction" for beam prefabrication plants, the present invention proposes a self-propelled hydraulic formwork and a combined steel pedestal equipment for prefabricating T-beams to improve the defects of the traditional prefabricated T-beams, such as uneven surface and surface bumps. Summary of the invention
[0006] The purpose of the present invention is to provide a self-propelled integral hydraulic formwork equipment for prefabricated T-beams, which is easy to assemble and disassemble, saves labor, improves the production efficiency of prefabricated T-beams, and ensures the quality of prefabricated T-beam products.
[0007] The present invention provides a self-propelled integral hydraulic formwork device for prefabricating T-beams, comprising:
[0008] A template assembly is installed on the outside of the T-beam to define the shape of the T-beam;
[0009] Support and reinforcement components are installed on both sides and the bottom of the formwork assembly to bear the load generated when pouring concrete of the precast T-beam and the gravity of the formwork assembly;
[0010] A walking system is provided below the formwork assembly and is used to transfer the formwork assembly;
[0011] A steel pedestal structure fixed to the ground foundation and located below the formwork assembly to carry the T-beam and formwork assembly;
[0012] Hydraulic system to provide power for installing formwork components and demoulding.
[0013] Preferably, the formwork assembly includes relatively arranged high side outer formwork and low side outer formwork, a group of relatively vertically arranged end formworks and a group of relatively arranged negative bending moment formworks, and the high side outer formwork or the low side outer formwork, the end formwork and the negative bending moment formwork are assembled and connected in sequence from top to bottom, wherein the high side outer formwork or the low side outer formwork is folded outward relative to the end formwork to support the flange plate of the T-beam, the end formwork is used to define the outer contour of the web of the T-beam, and the negative bending moment formwork is used to define the outer contour of the horseshoe support of the T-beam.
[0014] Preferably, the support and reinforcement components include multiple groups of upper tie rod structures, lower tie rod structures and support screws. The multiple groups of upper tie rod structures are distributed on both sides of the high-side outer formwork and the low-side outer formwork. The upper tie rod structures include two outer vertical poles and an upper tie rod connected thereto. The bottom ends of the outer vertical poles are connected to the support screws. The bottom of the support screws is placed on the ground to provide support for the outer vertical poles. The upper tie rods are located above the high-side outer formwork and the low-side outer formwork. The multiple groups of lower tie rod structures pass through the steel pedestal structure, and their two ends are fixed to the bottom of the negative bending moment formwork by nuts.
[0015] Preferably, a plurality of groups of horizontally arranged diaphragms are provided between the outer poles and the adjustment section template, and each group of diaphragms has a different height relative to the ground foundation. One side of the diaphragm is assembled and connected to the outer pole, and the other side of the diaphragm is fixedly connected to a diaphragm cover, and the diaphragm cover is fixedly connected to the adjustment section template.
[0016] Preferably, two through beams are provided on the outer side of each group of the upper tie rod structures, and the through beams are used to bear a part of the lateral load transferred from the transverse partition to the outer column during the pouring of concrete.
[0017] Preferably, the formwork assembly also includes a plurality of sparse plate formworks and expansion joint formworks. The sparse plate formworks are arranged on both sides of the T-beam to form the sparse plate structure of the T-beam. The expansion joint formworks are arranged on the flange plate surface of the T-beam to form the expansion joint structure of the T-beam.
[0018] Preferably, the traveling system comprises a plurality of groups of relatively arranged trolley traveling frames and traveling wheels, the trolley traveling frames are erected below the supporting and reinforcing components, a servo motor is fixed on the trolley traveling frame, the output shaft of the servo motor is connected to the gear reducer in transmission, the output end of the gear reducer is connected to the traveling wheel through a bearing transmission, the output speed of the servo motor is reduced and transmitted to the traveling wheel, and a track for the traveling wheel to move is provided on the ground foundation.
[0019] Preferably, the hydraulic system includes a hydraulic station, a vertical cylinder, a horizontal cylinder and a demoulding cylinder. The hydraulic station is used to provide hydraulic oil to the vertical cylinder, the horizontal cylinder and the demoulding cylinder. The vertical cylinder and the horizontal cylinder are used to provide power for the assembly of the formwork assembly and the support and reinforcement assembly to adjust the height and horizontal position of each component. The demoulding cylinder is used to separate the formwork assembly from the T-beam after the T-beam is prefabricated.
[0020] Preferably, the steel pedestal structure includes a base and a stainless steel top plate, the base is connected to the ground foundation by bolts, the stainless steel top plate is connected to the base by a ball screw lifting device, and the bottom of the stainless steel top plate is provided with a spherical groove that cooperates with the ball screw lifting device, so that the stainless steel top plate can be lifted and lowered relative to the base.
[0021] Preferably, the template components are assembled from multiple groups of single templates, and waterproof strips are affixed to the joints between adjacent single templates.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] 1. Improve work efficiency: The T-beam formwork assembly only needs to be manually installed for the first time. The subsequent mold installation and demolding are all completed by the hydraulic system. After the mold is removed, the template assembly is moved to the next workbench position through the walking system, and the second construction can be carried out. The whole process is simple and accurate, which not only reduces labor and hoisting, but also shortens the time for mold installation and demolding. Only one person is needed to operate and one person is needed to observe. The hydraulic T-beam mold is fully automated, which reduces at least half the working time compared with traditional manual mold installation, and has higher economic benefits;
[0024] 2. Higher safety factor: After the template is installed in place for the first time, there is no need to repeatedly dismantle and install it when the workbench is transferred later. There is no other lifting process except for removing the sealing end and cover plate during the entire later construction, which eliminates the safety risks that may arise from unreasonable removal, installation, lifting, transportation and placement;
[0025] 3. Clean construction site: After the T-beam formwork is completely separated from the concrete, start the motor to move the formwork as a whole to the next station. There is no need to disassemble or assemble it, and it does not occupy the site, so the cleanliness of the construction site can be maintained continuously;
[0026] 4. Improve the quality of prefabricated beams: Prefabricated beam templates are large templates assembled as a whole, with few joints, and do not need to be disassembled and assembled every time, eliminating the misalignment caused by human factors during assembly. The demoulding cylinder is used to simultaneously press the cross partition in the opposite direction to achieve the overall synchronous demoulding of the template, avoiding the phenomenon of missing edges and corners caused by demoulding of conventional templates by crowbars and template self-weight, making the appearance of the finished beam far better than that of ordinary assembled templates;
[0027] 5. High reuse rate: The template is fully automatically operated, with less wear and tear during construction. The construction life of a set of templates can reach 200-300 times; while during the manual construction of ordinary T-beam templates, due to frequent assembly and disassembly, the wear and tear is large, especially the lifting and stacking of the template will cause the deformation of the template and the column, which not only affects the overall appearance quality of the template but also directly affects the service life of the template;
[0028] 6. Strong universality: The deformation of the entire formwork during use is very small, and it can continue to be used at the next construction site after one construction site is completed. In particular, the hydraulic system and walking system are universal parts and can be directly used for different beam types. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 It is a cross-sectional view of the hydraulic formwork equipment at the mid-span of a 40m T-beam in an embodiment of the present invention;
[0031] Figure 2 It is an elevation view of the side span of a 40m T-beam in an embodiment of the present invention;
[0032] Figure 3 It is a schematic diagram of a longitudinal section of a portion of the steel structure pedestal in the present invention.
[0033] Description of reference numerals:
[0034] 1: Ground foundation; 2: Steel pedestal structure; 21: Stainless steel top plate; 22: Base; 3: Formwork assembly; 31: Low-side outer formwork; 32: High-side outer formwork; 33: End formwork; 34: Negative bending moment formwork; 4: Travel system; 41: Trolley travel frame; 42: Travel wheel; 5: T-beam; 6: Upper tie rod structure; 61: External pole; 62: Upper tie rod; 7: Lower tie rod structure; 8: Support screw; 9: Partition; 10: Partition cover; 11: Through beam; 12: Vertical cylinder; 13: Horizontal cylinder; 14: Demolding cylinder; 15: Sparse plate formwork; 16: Expansion joint formwork; 17: Track. DETAILED DESCRIPTION
[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0038] The present invention provides a self-propelled integral hydraulic formwork equipment for prefabricating T-beams. This embodiment takes the prefabricated T-beam with a length of 40m as an example to describe the structure of the self-propelled integral hydraulic formwork equipment in detail.
[0039] like Figure 1 As shown, the formwork equipment is placed on a ground foundation 1, and includes a steel pedestal structure 2, a formwork assembly 3, a walking system 4, a support and reinforcement assembly, and a hydraulic system, wherein the bottom of the steel pedestal structure 2 is fixedly connected to the ground foundation 1 by bolts, and the surface of the steel pedestal structure 2 is a stainless steel platform for supporting the bottom of the T-beam 5.
[0040] The formwork assembly 3 is located on both sides above the steel pedestal structure 2 and is used to define the shape of the T-beam 5. It includes a left formwork assembly and a right formwork assembly that are relatively arranged. The T-beam 5 is formed by pouring reinforced concrete after the boundaries are defined by the left formwork assembly and the right formwork assembly.
[0041] The support and reinforcement components are installed on both sides and the bottom of the formwork component 3 to bear the load generated by the prefabricated T-beam 5 during concrete pouring and the gravity of the formwork component 3.
[0042] The walking system is arranged below the formwork assembly 3 and is used to transfer the formwork assembly 3 . A track for the movement of the walking system is arranged on the ground foundation 1 .
[0043] The hydraulic system is used to provide power for installing the template assembly 3 and demoulding.
[0044] The left formwork assembly and the right formwork assembly are arranged relative to each other, and the T-beam 5 is confined therebetween, wherein the left formwork assembly includes a low-side outer formwork 31, a vertically arranged end sealing formwork 33, and a negative bending moment formwork 34 folded over at the upper end, which are installed and connected in sequence; and the right formwork assembly includes a high-side outer formwork 31, a vertically arranged end sealing formwork 33, and a negative bending moment formwork 34 folded over at the upper end, which are installed and connected in sequence.
[0045] The high side outer formwork 32 and the low side outer formwork 31 are both folded outward relative to the end capping formwork 33 to bear the weight of the flange plate of the T-beam 5 and define its boundaries. The end capping formwork 33 is used to define the position and outer contour of the web of the T-beam 5, and the negative bending moment formwork 34 is used to define the outer contour of the horseshoe support of the T-beam 5.
[0046] The low-side outer formwork 31, the high-side outer formwork 32, the end-sealing formwork 33, and the negative bending moment formwork 34 are all assembled from single small formworks, and waterproof adhesive strips need to be affixed between the joints between the formworks to prevent leakage.
[0047] Specifically, the support and reinforcement assembly includes multiple groups of upper tie rod structures 6, lower tie rod structures 7 and support screws 8. Multiple groups of upper tie rod structures 6 are distributed on both sides of the high side outer formwork 32 and the low side outer formwork 31. The upper tie rod structure 6 includes two outer poles 61 and upper tie rods 62 connected thereto. The outer poles 61 are arranged vertically, and their lower ends are connected to the support screws 8. The bottom of the support screws 8 is placed on the ground foundation 1 to provide support for the outer poles 61. The upper tie rods 62 are located above the high side outer formwork 32 and the low side outer formwork 31, and their two ends pass through the outer poles 61 respectively, and are connected to the surface of the outer poles 61 through fastening nuts.
[0048] A plurality of groups of lower tie rod structures 7 are distributed on both sides of the bottom of the negative bending moment formwork 34. The lower tie rod structures 7 pass through the through holes on the steel base structure 2, and both ends thereof are fixedly connected to the bottom of the negative bending moment formwork 34 by nuts. The negative bending moment formwork 34 at the bottom of the formwork assembly 3 can be reinforced by the lower tie rod structures 7 to prevent leakage due to excessive force during pouring.
[0049] Four groups of horizontally arranged diaphragms 9 are arranged between the outer columns 61 and the end formwork 33 on both sides of the formwork assembly 3. The heights of each group of diaphragms 9 relative to the ground foundation 1 are different. The surface of the top diaphragm 9 fits the bottom contour of the low-side outer formwork 31 or the high-side outer formwork 32, and supports the low-side outer formwork 31 or the high-side outer formwork 32. The left side of the diaphragm 9 is assembled and connected with the outer columns 61. The right side of each layer of diaphragms 9 is fixedly connected with a vertically arranged diaphragm cover plate 10. The diaphragm cover plate 10 is attached to the end formwork 33, and the two are fixedly connected by bolts. The diaphragm 9 and the diaphragm cover plate 10 can support the end formwork 33, the low-side outer formwork 31 or the high-side outer formwork 32, and bear the loads generated by the flange plate and web structure of the prefabricated T-beam 5 during the pouring and solidification process.
[0050] Two through beams 11 are provided on the outside of each group of upper tie rod structures 6. The through beams 11 are used to bear part of the lateral load transmitted from the diaphragm 9 to the outer poles 61 during the pouring of concrete. The through beams 11 are fixedly connected to the outer poles 61 on the same side by bolts, so that the outer poles 61 on the same side are connected as a whole, and can share the load together, preventing the outer poles 61 from being deformed due to uneven load distribution.
[0051] The hydraulic system includes a hydraulic station, a vertical cylinder 12, a horizontal cylinder 13 and a demoulding cylinder 14. The hydraulic station is used to provide hydraulic oil for the vertical cylinder 12, the horizontal cylinder 13 and the demoulding cylinder 14. The vertical cylinder 12 and the horizontal cylinder 13, wherein the vertical cylinder 12 is arranged below the transverse partition 9, and is used to adjust the height of the low-side outer template 31 or the high-side outer template 32. The horizontal cylinder 13 is arranged on the outside of the outer column 61, and is used to push the outer column 61, the transverse partition 9 and the end template 33 to move as a whole, and adjust the left and right positions of the end template 33. The vertical cylinder 12 and the horizontal cylinder 13 can provide power for the movement of each template or support and reinforcement component, and adjust the height and horizontal position of each component. This equipment is equipped with two hydraulic stations, 12 horizontal cylinders 13 and 24 vertical cylinders 12, which are evenly arranged on both sides of the T-beam 5 for disassembling and assembling the template. There are 14 groups of demoulding cylinders 14, which are respectively installed on the left side of the diaphragm 9. When demoulding, the supporting screw 8 at the bottom of the outer rod 61 is lifted, the upper pull rod 62 is removed, and the outer rod 61 and the diaphragm 9 are pushed in the reverse direction, driving the diaphragm cover plate 10 and the end template 33 to separate from the T-beam 5.
[0052] Specifically, the traveling system includes 12 groups of trolley traveling frames 41 and traveling wheels 42 which are relatively arranged on both sides of the T-beam 5. The trolley traveling frames 41 are erected under the supporting and reinforcing components. Every two groups of relatively trolley traveling frames 41 and traveling wheels 42 share a set of driving devices. The driving devices include a servo motor and a gear reducer. The output shaft of the servo motor is connected to the gear reducer through transmission. The output end of the gear reducer is connected to the two groups of traveling wheels 42 which are respectively arranged relatively through bearing transmission. The rotation speed output by the servo motor is reduced and transmitted to the traveling wheels 42. A track 17 for the traveling wheels 42 to move is provided on the ground foundation 1.
[0053] like Figure 2 As shown, in this embodiment, the template assembly 3 also includes a plurality of sparse plate templates 15 and expansion joint templates 16, wherein the sparse plate templates 15 are arranged on both sides of the T-beam and are arranged at intervals to form the sparse plate structure of the T-beam, and the expansion joint template 16 is arranged on the flange plate surface of the T-beam and is located at the junction of the middle span and the side span to form the expansion joint structure of the T-beam. In this embodiment, the expansion joint structure of the T-beam is box-shaped, and its bottom is inclined.
[0054] like Figure 3 As shown, in this embodiment, the steel pedestal structure 2 includes a stainless steel top plate 21 and a base 22. The base 22 is connected to the ground foundation 1 by bolts. The stainless steel top plate 21 is connected to the base 22 by a ball screw lifting device 23. A spherical groove that cooperates with the ball screw lifting device 23 is provided at the bottom of the stainless steel top plate 21, so that the stainless steel top plate 21 can be raised and lowered relative to the base 22, thereby adjusting the height position of the steel pedestal structure 2.
[0055] The installation and use process of the hydraulic formwork equipment of the present invention is as follows:
[0056] 1. Preliminary preparation: Before the template is put into the site, the ground foundation 1, track 17, steel structure pedestal 2, counterweight and other supporting facilities should be constructed in advance. Pay attention to the flatness and bearing capacity of the foundation to ensure the flatness and straightness of the track;
[0057] 2. Template installation: Assemble the template strictly according to the number of the design drawing. The installation order of the single-sided template starts from the middle to both sides. Make sure that all the connecting bolts and support screw rods 8 are installed in place at each position. Place the trolley walking frame 41 and the walking wheel 4 in advance at the walking position before installing the template. Waterproof strips need to be pasted between the joints of the templates to prevent leakage;
[0058] 3. Installation of counterweights: Considering the unstable center of gravity of the template, the counterweights of the template need to be installed after the single-side template is installed in place. The counterweights are installed on the lower through beam 11 outside the outer column 61. The number of counterweights installed is 6 on one side, and each weighs 0.6 tons. Try to distribute them evenly;
[0059] 4. Installation of hydraulic system and travel system: A set of 40mT beam is composed of 12 sets of travel system 4, 2 hydraulic stations, 12 horizontal cylinders 13, 24 vertical cylinders 12, 14 demoulding cylinders 14, 6 sets of travel drive devices and connecting pipelines and joints, etc., which are installed;
[0060] 5. Mould closing and debugging: After the steel cage is installed in place, the low side outer formwork 31 and the high side outer formwork 32 are pushed to the position of the steel pedestal structure 2 by starting the operating valve of the horizontal oil cylinder 13 at the hydraulic station, and then the operating valve of the vertical oil cylinder 12 is started to adjust the vertical height of the formwork. If the height of the formwork is inconsistent, the ball valve switch of the oil cylinder at different positions can be switched to make the height of the formwork consistent with the design drawing. After the formwork is closed and debugged in place, the upper tie rod structure 6 and the lower tie rod structure 7 are installed. When tightening the nuts of the tie rods, it is important to pay attention to controlling the internal space of the concrete while alternating the upper and lower tie rods. Adjust the support screw 8 at the bottom of the formwork so that the bottom of the support screw 8 touches the ground to support the force;
[0061] 6. Pouring concrete: Before pouring concrete, ensure that all the connecting bolts between the templates are fully tightened, the upper and lower tie rods are all nutted and tightened in place, and the support screw 8 is supported by the ground. Concrete can be poured only after all preparations are in place. During the pouring of concrete, the vibration time of each vibrator should not exceed 10 seconds;
[0062] 7. Demoulding: Before demolding, first remove all the upper tie rod structures 6 and the lower tie rod structures 7, retract the support screw 8 to a position not less than 100mm from the ground, remove the diaphragm cover 10, flip the demoulding cylinder 14 at each diaphragm 9 to point to the diaphragm 9, and start the control valve of the demoulding cylinder 14 at the same time. Push the diaphragm 9 through the demoulding cylinder 14 to separate the formwork from the concrete. The force of the demoulding cylinder 14 can be stopped when the formwork and the concrete are separated by 20 to 30mm. Start the control valve of the horizontal cylinder 13 and the control valve of the vertical cylinder 12 to completely separate the formwork from the concrete, and observe the demoulding of the formwork. The horizontal cylinder 13 and the vertical cylinder 12 can be operated alternately. The demoulding amount needs to ensure that there is a gap of 50-100mm between the innermost position of the formwork and the exposed steel bar end of the diaphragm 9, so that there is no obstruction during walking.
[0063] 8. Formwork walking: Before walking, you must ensure that all support systems are removed. You can directly start the walking drive device to make the formwork move as a whole to the next steel pedestal structure 2. After the steel bars are tied in place, the installation of the formwork can repeat the above installation steps.
[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A self-propelled integral hydraulic formwork equipment for prefabricating T-beams, characterized in that: include: A template assembly is installed on the outside of the T-beam and is used to define the shape of the T-beam. The template assembly includes relatively arranged high-side outer templates and low-side outer templates, a group of relatively vertically arranged end templates and a group of relatively arranged negative bending moment templates, and the high-side outer template or the low-side outer template, the end template and the negative bending moment template are assembled and connected in sequence from top to bottom, wherein the high-side outer template or the low-side outer template is folded outward relative to the end template to support the flange plate of the T-beam, the end template is used to define the outer contour of the web of the T-beam, and the negative bending moment template is used to define the outer contour of the horseshoe support of the T-beam. The template assembly also includes a plurality of sparse plate templates and expansion joint templates, the sparse plate templates are arranged on both sides of the T-beam to form the sparse plate structure of the T-beam, and the expansion joint template is arranged on the flange plate surface of the T-beam to form the expansion joint structure of the T-beam; Support and reinforcement components are installed on both sides and the bottom of the formwork assembly to bear the load generated when pouring concrete of the precast T-beam and the gravity of the formwork assembly; A walking system, arranged below the formwork assembly, is used to transfer the formwork assembly; A steel pedestal structure is fixed on the ground foundation and is located below the formwork assembly, and is used to carry the T-beam and the formwork assembly. The steel pedestal structure includes a base and a stainless steel top plate. The base is connected to the ground foundation by bolts, and the stainless steel top plate is connected to the base by a ball screw lifting device. A spherical groove that cooperates with the ball screw lifting device is provided at the bottom of the stainless steel top plate, so that the stainless steel top plate can be lifted and lowered relative to the base. Hydraulic system to provide power for installing formwork components and demoulding.
2. The self-propelled integral hydraulic formwork equipment for prefabricating T-beams according to claim 1, characterized in that: The support and reinforcement components include multiple groups of upper tie rod structures, lower tie rod structures and support screws. The multiple groups of upper tie rod structures are distributed on both sides of the high-side outer formwork and the low-side outer formwork. The upper tie rod structures include two outer vertical poles and upper tie rods connected thereto. The bottom ends of the outer vertical poles are connected to the support screws. The bottoms of the support screws are placed on the ground to provide support for the outer vertical poles. The upper tie rods are located above the high-side outer formwork and the low-side outer formwork. The multiple groups of lower tie rod structures pass through the steel pedestal structure, and their two ends are fixed to the bottom of the negative bending moment formwork by nuts.
3. The self-propelled integral hydraulic formwork equipment for prefabricating T-beams according to claim 2, characterized in that: A plurality of groups of horizontally arranged diaphragms are provided between the outer poles and the end-sealing formwork, and each group of diaphragms has a different height relative to the ground foundation. One side of the diaphragm is assembled and connected to the outer pole, and the other side of the diaphragm is fixedly connected to a diaphragm cover, and the diaphragm cover is fixedly connected to the end-sealing formwork.
4. The self-propelled integral hydraulic formwork equipment for prefabricating T-beams according to claim 3, characterized in that: Two through beams are arranged on the outer side of each group of the upper tie rod structures, and the through beams are used to bear a part of the lateral load transmitted from the transverse partition to the outer poles during the pouring of concrete.
5. The self-propelled integral hydraulic formwork equipment for prefabricating T-beams according to claim 1, characterized in that: The traveling system includes a plurality of groups of relatively arranged trolley traveling frames and traveling wheels. The trolley traveling frames are erected below the supporting and reinforcing components. A servo motor is fixed on the trolley traveling frame. The output shaft of the servo motor is connected to the gear reducer in transmission. The output end of the gear reducer is connected to the traveling wheel through a bearing transmission. The output speed of the servo motor is reduced and transmitted to the traveling wheel. A track for the traveling wheel to move is provided on the ground foundation.
6. The self-propelled integral hydraulic formwork equipment for prefabricating T-beams according to claim 1, characterized in that: The hydraulic system includes a hydraulic station, a vertical cylinder, a horizontal cylinder and a demoulding cylinder. The hydraulic station is used to provide hydraulic oil to the vertical cylinder, the horizontal cylinder and the demoulding cylinder. The vertical cylinder and the horizontal cylinder are used to provide power for the assembly of the formwork assembly and the support and reinforcement assembly to adjust the height and horizontal position of each component. The demoulding cylinder is used to separate the formwork assembly from the T-beam after the T-beam is prefabricated.
7. The self-propelled integral hydraulic formwork equipment for prefabricating T-beams according to claim 1, characterized in that: The template components are all assembled from multiple groups of single templates, and waterproof adhesive strips are attached to the joints between adjacent single templates.
Citation Information
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