Assembled T-beam formwork structure

Abstract

The invention relates to the technical field of prefabricated formworks, in particular to an assembled T-beam formwork structure which comprises a hardened ground, a bottom film is arranged on the hardened ground, a plurality of sliding rails installed on the hardened ground are symmetrically arranged on the two sides of the bottom film, and the sliding rails are arranged in parallel in the length direction of a T-beam. A plurality of side mold units which are arranged on the sliding rails in a sliding mode are further symmetrically arranged on the two sides of the bottom mold, and every two adjacent side mold units are fixedly connected through bolts; each side mold unit comprises a base arranged on the corresponding sliding rail in a sliding mode, and an L-shaped side plate is fixedly installed at the top of each base. The air bag expands to push the lifting frame to downwards extrude the movable frame, the demolding plate is driven to stably descend to complete demolding, compared with traditional vibration demolding, uniform and stable demolding force can be provided, action is gentle and stable, high-decibel noise cannot be generated, pollution of construction to the surrounding environment is effectively reduced, and the construction efficiency is improved. And meanwhile, the problem of tiny cracks in the concrete possibly caused by vibration is avoided, and the T beam is protected in all directions.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated formworks, and particularly to an assembled T-beam formwork structure. Background Art

[0002] A T-shaped beam refers to a beam with a T-shaped cross-section. The two sides that protrude are called flanges, and the middle part is called the beam rib (or web). Since it is formed by removing the concrete in the tensile zone that has no effect on the flexural strength in a rectangular beam, in addition to having the same flexural strength as the original rectangular beam, it can save concrete, reduce the self-weight of the component, and improve the spanning ability. Currently, in bridge construction, as a commonly used beam type, the use of the formwork for T-beams is crucial. Traditional T-beam formworks are mostly of an integral structure, and there are certain problems during the construction process: Due to the setting force of cement, when disassembling the formwork, generally, external force is directly applied to pull for demolding. At this time, the required external force is too large, resulting in energy waste, and it is easy to cause large-area damage to the outer wall of the T-shaped beam, reducing the surface flatness and causing quality problems.

[0003] To solve the above problems, through retrieval, the invention patent with the authorization announcement number of CN118404681B discloses a T-beam steel formwork and its use method, including a base; a fixed block is fixedly connected to the middle of the base; two groups of first chutes are symmetrically arranged on the top surface of the base with respect to the fixed block; an inverted Z-shaped formwork is slidably connected in the first chute, and the vertical plate at the bottom end of the inverted Z-shaped formwork is inverted convex; two groups of fixing plates symmetrically distributed with respect to the fixed block are fixedly connected to the base, and a hydraulic cylinder is hinged on the fixing plate; a hydraulic rod is provided at the output end of the hydraulic cylinder; a first cavity is opened in the hydraulic rod; a sliding plate is slidably connected in the first cavity, and the first cavity is square; a stress rod is rotatably connected to the side wall of the sliding plate, and the end of the stress rod extends out of the hydraulic rod and is detachably hinged to the side wall of the inverted Z-shaped formwork; a strengthening block is fixedly connected to the turning point of the inverted Z-shaped formwork, and a vibrating member is provided in the strengthening block; to solve the problem that the T-shaped beam is easily damaged during demolding.

[0004] Combined with the existing technology, it is found that although the existing T-beam formworks solve the problem of easy damage to T-beams to a certain extent, during the demolding process using vibration, due to the vibration, a large amount of noise will be generated, polluting the construction environment, easily causing noise nuisance problems, and at the same time, it will also affect the working environment of construction workers. Moreover, high-frequency vibration may have a certain impact on the internal structure of the concrete, resulting in fine cracks inside the concrete, reducing the density and strength of the concrete, especially for the production of T-beams with high structural quality requirements, the impact is more obvious. Therefore, it is urgent to propose an assembled T-beam formwork structure to improve the above problems. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that during the demolding process using vibration in the prior art, relatively large noise will be generated due to vibration, which will pollute the construction environment and easily cause noise nuisance problems. At the same time, high-frequency vibration may have a certain impact on the interior of the concrete structure, resulting in fine cracks inside the concrete, reducing the density and strength of the concrete.

[0006] To solve the above problems, the present invention provides an assembled T-beam formwork structure, including a hardened ground, on which a bottom formwork is provided, and a plurality of slide rails installed on the hardened ground are symmetrically arranged on both sides of the bottom formwork. The slide rails are arranged parallel to the length direction of the T-beam. A plurality of side formwork units slidably arranged on the slide rails are also symmetrically arranged on both sides of the bottom formwork. Adjacent two side formwork units are fixedly connected by bolts. Each side formwork unit includes a base slidably arranged on the slide rail, and an L-shaped side plate is fixedly installed on the top of the base. Two mounting seats are fixed on one side of the top of the L-shaped side plate, and a side formwork support frame and a web formwork are respectively rotatably connected to the two mounting seats. Both ends of one side of the side formwork support frame are hinged to both ends of one side of the L-shaped side plate by a first hydraulic cylinder. The web formwork is composed of a plurality of hinged web frames, and a demolding formwork is attached to the inner walls around the web frame. The top surface of the demolding formwork is flush with the top surface of the web frame. A movable frame inserted into the web frame is fixed at the bottom of the demolding formwork. An air-powered demolding assembly for adjusting the height of the movable frame and the demolding formwork is arranged inside the side formwork unit. Support assemblies for supporting the demolding formwork are arranged on the inner walls on both sides of the web frame.

[0007] The present invention is further arranged such that a connecting seat is arranged between the two web formworks at the inner corner. One end of the connecting seat is fixed to one side of the horizontal web formwork, and the bottom of the connecting seat is hinged to the top of the vertical web formwork. The two web formworks at the outer corner are rotatably connected by a rotating member, and the rotating member is composed of two rotating seats connected by a pin shaft. Other adjacent two web frames are hinged to each other. The top of the side formwork support frame is hinged to the top of the uppermost web frame.

[0008] The present invention is further arranged such that the air-powered demolding assembly includes a fixing plate fixed between the inner walls at both ends of the web frame, and an airbag is fixedly installed at the bottom of the fixing plate. A lifting frame for squeezing the movable frame for height adjustment is fixedly installed at the bottom of the airbag. The top surface of the lifting frame fits against the bottom surface of the fixing plate. A second spring is installed between the bottom of the movable frame and the inner wall at the bottom of the web frame at equal distances. A same air inflation assembly is arranged at the bottom of the airbag.

[0009] The present invention is further configured such that the air-blowing assembly includes a metal bellows fixedly installed at the middle of the bottom of the airbag, and hoses are fixedly installed at one end of each metal bellows. Through holes for the metal bellows and the hoses to pass through are provided at the middle of the bottom of the movable frame and the middle of the bottom of the web frame. An air pump is fixedly installed on the inner wall of the bottom of the L-shaped side plate, and a control valve is installed at the exhaust end of the air pump. An exhaust pipe is fixedly installed at the exhaust end of the control valve. A plurality of branch pipes are fixed to one side of the exhaust pipe, and one end of each branch pipe is fixedly connected to one end of the hose.

[0010] The present invention is further configured such that the support assembly includes grooves provided on the inner walls of both sides of the web frame, and support plates are slidably provided on the inner walls of the grooves. First springs are fixedly installed between one side of each support plate and one side inner wall of the groove at equal intervals. Push-pull plates are respectively hinged to the other sides of the two support plates at both sides of the lifting frame.

[0011] The present invention is further configured such that roller wheels are rotatably connected to the top corners of each support plate at equal intervals, and the demolding plate is attached to the roller wheels.

[0012] The present invention is further configured such that guide grooves are provided at both ends of the outer walls on both sides of the fixed plate, and guide rails inserted into the guide grooves are fixedly installed at both ends of the inner walls on both sides of the movable frame.

[0013] The present invention is further configured such that a plurality of card slots are provided at the tops of the two L-shaped side plates, and a pull rod is inserted into two horizontally arranged card slots. High-strength reinforcing nuts are screwed at both ends of the pull rod for connection.

[0014] The present invention is further configured such that the side formwork support frame and the web formwork are both Z-shaped, and the side formwork support frame is attached to the outside of the web formwork. Two web formworks are attached to both sides of the bottom film. A reinforcing assembly for reinforcing the side formwork support frame is provided on the L-shaped side plate.

[0015] The present invention is further configured such that the reinforcing assembly includes a second hydraulic cylinder fixedly installed on the L-shaped side plate, and a U-shaped reinforcing rib is fixedly installed at the piston end of the second hydraulic cylinder. The U-shaped reinforcing rib is attached to one side top of the side formwork support frame.

[0016] In summary, after adopting the above structure, compared with the prior art, the present invention has the following advantages: 1. By composing the web formwork of multiple hinged web frames, the web formwork at the inner corner is connected by a connecting seat, and the outer corner is connected by a rotating member. Other adjacent web frames are also hinged to each other. This hinged design enables the web formwork to better adapt to the complex corners and curved parts of the T-beam, and can fit tightly during the splicing process, effectively avoiding the problem of mortar leakage caused by loose formwork splicing, ensuring the forming quality of the T-beam. At the same time, the hinged structure facilitates the disassembly and turnover use of the formwork, further improving the utilization rate of the formwork.

[0017] 2. The pneumatic demoulding assembly is set up, which includes a fixed plate, an airbag, a lifting frame, an air-blowing assembly, etc. During operation, the air pump injects gas into the airbag. After the airbag expands, it pushes the lifting frame downward to squeeze the movable frame, driving the demoulding plate to descend smoothly to complete demoulding. Compared with the traditional vibration demoulding method, this pneumatic demoulding method has obvious advantages. On the one hand, it can provide a uniform and stable demoulding force, with gentle and smooth movements, without generating high-decibel noise, effectively reducing the pollution of the construction to the surrounding environment and avoiding noise nuisance disputes. On the other hand, it avoids the problem of fine internal cracks in the concrete that may be caused by vibration, protecting the T-beam in all aspects. In addition, the second spring installed between the movable frame and the inner bottom wall of the web frame can quickly reset the demoulding plate after demoulding is completed, preparing for the next use, greatly improving the demoulding efficiency and simplifying the operation process.

[0018] 3. By setting the first hydraulic cylinder, when the first hydraulic cylinder drives the side formwork support frame to adjust the angle, the web formwork hinged to the side formwork support frame will sequentially separate from the surface of the T-beam from top to bottom in an orderly manner. Compared with the possible large-area instantaneous separation of the formwork in the traditional demoulding method, this piece-by-piece separation mode greatly reduces the pulling and impact force on the surface of the T-beam, avoiding serious damage problems such as scratches, missing edges and corners caused by stress concentration on the surface of the T-beam during instantaneous demoulding, further improving the appearance quality and structural integrity of the T-beam finished product, reducing the subsequent repair process, and saving time and material costs.

[0019] 4. By installing the support plate and the first spring in the groove of the web frame in the support assembly, during the concrete pouring process, the support assembly provides reliable support for the demoulding plate, effectively preventing the demoulding plate from deforming or moving downward due to the concrete pressure, ensuring the smooth progress of the pouring work. When the airbag expands to start the demoulding procedure, the lifting frame will first drive the support plate to retract into the groove through the push-pull plate, creating space for the lifting of the demoulding plate and avoiding interference between the two. Moreover, the surface of the sliding roller on the top of the support plate is covered with a wear-resistant rubber layer. This detailed design not only significantly reduces the friction between the demoulding plate and the support plate, making the movement of the demoulding plate smoother and silkier, but also effectively buffers the contact pressure, protecting the surface of the demoulding plate in all aspects, extending its service life and reducing the maintenance cost.

[0020] 5. By opening clamping grooves at the tops of two L-shaped side plates, connecting them with tie rods and high-strength reinforcing nuts, and setting anti-loosening washers, this connection method can effectively enhance the connection strength between the two L-shaped side plates, prevent the formwork from deforming or displacing due to lateral pressure during concrete pouring, ensure the dimensional accuracy and structural stability of the T-beam, and through the reinforcement assembly composed of the second hydraulic cylinder and the gantry reinforcement ribs, the horizontal position of the gantry reinforcement ribs can be adjusted under the action of the second hydraulic cylinder, which can specifically reinforce the side formwork support frame, effectively resist the lateral pressure of the concrete, ensure the overall stability of the formwork structure, and ensure the pouring quality of the T-beam.

[0021] 6. By setting slide rails on the hardened ground, the side formwork units are slidably arranged on the slide rails through bases, and adjacent side formwork units are fixedly connected by bolts. This design makes the installation, disassembly and movement of the side formwork units extremely convenient, with assembly convenience and flexibility. Under different construction sites or T-beam size requirements, the formwork structure layout can be quickly adjusted. For example, when the length of the T-beam needs to be changed, the number of side formwork units can be conveniently increased or decreased without large-scale modification of the overall structure, significantly improving the construction efficiency and reducing the construction difficulty and labor cost. Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional structure schematic diagram of an assembled T-beam formwork structure of the present invention; Figure 2 is a side formwork unit structure schematic diagram of an assembled T-beam formwork structure of the present invention; Figure 3 is a front view of an assembled T-beam formwork structure of the present invention; Figure 4 is a structure schematic diagram of the air inflation assembly of an assembled T-beam formwork structure of the present invention; Figure 5 is a structure schematic diagram of the web frame and demolding form of an assembled T-beam formwork structure of the present invention; Figure 6 is a front sectional view of the web frame of an assembled T-beam formwork structure of the present invention; Figure 7 is a structure schematic diagram of the fixing plate and slide rail of an assembled T-beam formwork structure of the present invention; Figure 8 is a structure schematic diagram of the airbag and support plate of an assembled T-beam formwork structure of the present invention; Figure 9 is a structure schematic diagram of the second spring and through hole of an assembled T-beam formwork structure of the present invention; Figure 10 is a structure schematic diagram of the mounting seat and clamping groove of an assembled T-beam formwork structure of the present invention.

[0023] Description of reference numerals in the figure: 1. Hardened ground; 2. Slide rail; 3. Bottom film; 4. Side mold unit; 5. Base; 6. L-shaped side plate; 7. First hydraulic cylinder; 8. Side mold support frame; 9. Second hydraulic cylinder; 10. Gantry reinforcement rib; 11. Tie rod; 12. Web formwork; 1201. Web frame; 1202. Connection seat; 1203. Demolding plate; 1204. Groove; 1205. Support plate; 1206. First spring; 1207. Push-pull plate; 1208. Slide roller; 1209. Fixed plate; 1210. Airbag; 1211. Lifting frame; 1212. Guide rail; 1213. Movable frame; 1214. Metal bellows; 1215. Second spring; 1216. Through hole; 13. Air inflation assembly; 1301. Air pump; 1302. Exhaust pipe; 1303. Hose; 14. Reinforcing nut; 15. Mounting seat; 16. Card slot. Detailed implementation manners

[0024] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0025] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0026] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0027] The first implementation manner: Please refer to Figures 1 - 10, the present invention provides an assembled T-beam formwork structure, including a hardened ground 1, a bottom formwork 3 is arranged on the hardened ground 1, and a plurality of slide rails 2 installed on the hardened ground 1 are symmetrically arranged on both sides of the bottom formwork 3. The slide rails 2 are arranged in parallel along the length direction of the T-beam. A plurality of side formwork units 4 slidably arranged on the slide rails 2 are also symmetrically arranged on both sides of the bottom formwork 3. Adjacent two side formwork units 4 are fixedly connected by bolts; Each side formwork unit 4 includes a base 5 slidably arranged on the slide rail 2, and an L-shaped side plate 6 is fixedly installed on the top of the base 5. Two mounting seats 15 are fixed on one side of the top of the L-shaped side plate 6, and a side formwork support frame 8 and a web formwork 12 are respectively rotatably connected to the two mounting seats 15. Both ends of one side of the side formwork support frame 8 are hinged to both ends of one side of the L-shaped side plate 6 by first hydraulic cylinders 7; The web formwork 12 is composed of a plurality of hinged web frames 1201. The inner walls around the web frames 1201 are fitted with demolding plates 1203, and the top surfaces of the demolding plates 1203 are flush with the top surfaces of the web frames 1201. A movable frame 1213 inserted into the web frames 1201 is fixed at the bottom of the demolding plates 1203. An air-powered demolding assembly for adjusting the heights of the movable frame 1213 and the demolding plates 1203 is arranged in the side formwork unit 4. The air-powered demolding assembly includes a fixing plate 1209 fixed between the inner walls at both ends of the web frames 1201. An airbag 1210 is fixedly installed at the bottom of the fixing plate 1209. A lifting frame 1211 for squeezing the movable frame 1213 for height adjustment is fixedly installed at the bottom of the airbag 1210. The top surface of the lifting frame 1211 is in contact with the bottom surface of the fixing plate 1209. Second springs 1215 are installed at equal intervals between the bottom of the movable frame 1213 and the inner wall at the bottom of the web frames 1201. Guide grooves are formed at both ends of the outer walls on both sides of the fixing plate 1209, and guide rails 1212 inserted into the guide grooves are fixed at both ends of the inner walls on both sides of the movable frame 1213. A same air-blowing assembly 13 is arranged at the bottom of the airbag 1210. The air-blowing assembly 13 includes a metal bellows 1214 fixedly installed at the middle of the bottom of the airbag 1210. One end of each metal bellows 1214 is fixedly installed with a hose 1303. Through holes 1216 for the metal bellows 1214 and the hoses 1303 to pass through are formed at the middle of the bottom of the movable frame 1213 and the middle of the bottom of the web frames 1201 respectively. An air pump 1301 is fixedly installed on the inner wall at the bottom of the L-shaped side plate 6. A control valve is installed at the exhaust end of the air pump 1301. An exhaust pipe 1302 is fixedly installed at the exhaust end of the control valve. A plurality of branch pipes are fixed on one side of the exhaust pipe 1302. One end of each branch pipe is fixedly connected to one end of the hose 1303. The hose 1303 is made of a stretchable and high-pressure-resistant rubber material. The quick connectors at both ends of the hose 1303 are detachably connected to the air ports of the branch pipes and the metal bellows 1214 respectively. Support assemblies for supporting the demolding plates 1203 are arranged on the inner walls on both sides of the web frames 1201. When demolding is to be carried out, the airbag 1210 expands and then pushes the lifting frame 1211 to squeeze the movable frame 1213 downward, driving the demolding plates 1203 to descend smoothly to complete demolding. Compared with the traditional vibration demolding, this air-powered demolding method can provide a uniform and stable demolding force, with gentle and smooth actions, no high-decibel noise generated, effectively reducing the pollution of the construction to the surrounding environment, avoiding noise nuisance disputes, and at the same time avoiding the problem of fine cracks inside the concrete that may be caused by vibration, protecting the T-beam in all aspects.

[0028] In the present invention, a connecting seat 1202 is provided between two web formworks 12 located at the inner corner. One end of the connecting seat 1202 is fixed to one side of the horizontal web formwork 12, and the bottom of the connecting seat 1202 is hinged to the top of the vertical web formwork 12. Between two web formworks 12 located at the outer corner, they are rotatably connected by a rotating member, and the rotating member is composed of two rotating seats connected by a pin shaft. Other adjacent two web frames 1201 are all hinged to each other. The top of the side form support frame 8 is hinged to the top of the uppermost web frame 1201. When adjusting the angle of the side form support frame 8, the web formwork 12 hinged to the side form support frame 8 will sequentially and orderly separate from the surface of the T-beam from top to bottom. Compared with the large-area instantaneous separation of the formwork that may occur in the traditional demoulding method, it greatly reduces the pulling and impact forces on the surface of the T-beam, avoiding serious damage problems such as scratches, chipping of edges and corners caused by stress concentration on the surface of the T-beam during the instantaneous demoulding.

[0029] In the present invention, the support assembly includes grooves 1204 opened on both inner sidewalls of the web frame 1201, and support plates 1205 are slidably arranged on the inner walls of the grooves 1204. On one side of the support plates 1205 and one side inner wall of the grooves 1204, first springs 1206 are fixedly installed at equidistant intervals. On the other sides of the two support plates 1205, push-pull plates 1207 are respectively hinged to both sides of the lifting frame 1211. At the top corners of the support plates 1205, sliding rollers 1208 are rotatably connected at equidistant intervals, and the demoulding plate 1203 is attached to the sliding rollers 1208. A wear-resistant rubber layer is provided on the surface of the sliding rollers 1208. The support assembly provides reliable support for the demoulding plate 1203, effectively preventing the problem that the demoulding plate 1203 is deformed or displaced due to the concrete pressure, ensuring the smooth progress of the pouring work. When the airbag 1210 expands to start the demoulding procedure, the lifting frame 1211 will first drive the support plates 1205 to retract into the grooves 1204 through the push-pull plates 1207, creating space for the lifting of the demoulding plate 1203. And a wear-resistant rubber layer is covered on the surface of the sliding rollers 1208, reducing the friction between the demoulding plate 1203 and the support plates 1205, making the movement of the demoulding plate 1203 smoother and silkier, and also effectively buffering the contact pressure to protect the surface of the demoulding plate 1203 in all directions.

[0030] In the present invention, a plurality of card slots 16 are opened at the tops of the two L-shaped side plates 6, and a pull rod 11 is inserted into two horizontally aligned card slots 16. High-strength reinforcing nuts 14 are screwed at both ends of the pull rod 11 for connection, and anti-loosening washers are provided at the connection points. Using the pull rod 11 and the high-strength reinforcing nuts 14 to reinforce the two L-shaped side plates 6 can effectively enhance the connection strength between the two L-shaped side plates 6, preventing the formwork from deforming or displacing due to the lateral pressure during the concrete pouring process, and ensuring the dimensional accuracy and structural stability of the T-beam.

[0031] In the present invention, the side formwork support frame 8 and the web formwork 12 are both Z-shaped, and the side formwork support frame 8 is attached to the outside of the web formwork 12, and the two web formworks 12 are attached to both sides of the bottom formwork 3.

[0032] The second implementation method: Please refer to Figure 1 and Figure 2 In this implementation method, on the basis of the implementation method 1, the following structure is added, so that the present application has the function of resisting the lateral pressure of concrete. The specific settings are as follows: a reinforcement component for reinforcing the side formwork support frame 8 is provided on the L-shaped side plate 6. The reinforcement component includes a second hydraulic cylinder 9 fixedly installed on the L-shaped side plate 6, and a same portal reinforcement rib 10 is fixedly installed at the piston end of the second hydraulic cylinder 9. The portal reinforcement rib 10 is attached to the top of one side of the side formwork support frame 8. The first hydraulic cylinder 7 is used to adjust the rotation of the side formwork support frame 8 around the hinge point with the L-shaped side plate 6, so as to adjust the inclination of the side formwork support frame 8. The second hydraulic cylinder 9 is used to adjust the horizontal position of the portal reinforcement rib 10, so as to adjust the supporting force of the side formwork support frame 8. By adjusting the horizontal position of the portal reinforcement rib 10 under the action of the second hydraulic cylinder 9, the side formwork support frame 8 can be specifically reinforced, effectively resisting the lateral pressure of concrete, ensuring the overall stability of the formwork structure, and ensuring the pouring quality of the T-beam.

[0033] In summary, the working principle of the present invention: the bottom formwork 3 is laid on the hardened ground 1 as the bottom forming basis of the T-beam. The slide rails 2 are symmetrically installed on both sides. The base 5 of the side formwork unit 4 is slidably arranged on the slide rails 2. By sliding the base 5, the position of the side formwork unit 4 can be conveniently adjusted. The adjacent side formwork units 4 are fixedly connected by bolts, thus completing the assembly of the side of the formwork; The top of the L-shaped side plate 6 in the side formwork unit 4 is rotationally connected to the side formwork support frame 8 and the web formwork 12 through the mounting seat 15. The first hydraulic cylinder 7 is hinged between the side formwork support frame 8 and the L-shaped side plate 6. During work, the first hydraulic cylinder 7 extends or contracts, driving the side formwork support frame 8 to rotate around the hinge point, and then adjusting the angle of the web formwork 12 to make it fit the designed shape of the T-beam. At the same time, the reinforcement component composed of the second hydraulic cylinder 9 and the portal reinforcement rib 10 plays a role. The second hydraulic cylinder 9 adjusts the horizontal position of the portal reinforcement rib 10 to reinforce the side formwork support frame 8 and enhance the ability of the formwork structure to resist lateral pressure during concrete pouring; Since the web formwork 12 is composed of a plurality of hinged web frames 1201, the inner corners are connected by the connecting seat 1202, and the outer corners are connected by rotating parts. This hinged structure enables the web formwork 12 to adapt to the complex corners and curved parts of the T-beam. In the inner wall grooves 1204 on both sides of the web frame 1201, the support plates 1205 are connected by the first springs 1206. During concrete pouring, the support plates 1205 extend under the action of the first springs 1206 to provide support for the demoulding plate 1203 to prevent it from deforming or moving downward; During pouring, card slots 16 are provided at the tops of the two L-shaped side plates 6. They are connected by tie rods 11 and high-strength reinforcement nuts 14, and anti-loosening washers are provided to enhance the connection strength of the two L-shaped side plates 6, further resisting the lateral pressure of the concrete, ensuring the stability of the formwork structure, and guaranteeing the dimensional accuracy of the T-beam. At this time, all parts of the formwork structure work together to provide a stable space for concrete pouring; After the pouring is completed, the air pump 1301 is started. The gas enters the airbag 1210 through the exhaust pipe 1302, the manifold pipe, the hose 1303, and the metal bellows 1214. The airbag 1210 expands to push the lifting frame 1211 to squeeze the movable frame 1213. The movable frame 1213 drives the demoulding plate 1203 to descend to achieve demoulding. At the same time, the lifting frame 1211 previously drives the support plate 1205 to retract into the groove 1204 through the push-pull plate 1207 to avoid hindering the movement of the demoulding plate 1203. After demoulding, the movable frame 1213 resets under the action of the second spring 1215, driving the demoulding plate 1203 back to the initial position. When the first hydraulic cylinder 7 drives the angle adjustment of the side formwork support frame 8, since the web formwork 12 is hinged to the side formwork support frame 8, the web formwork 12 will sequentially separate from the surface of the T-beam from top to bottom in an orderly manner, reducing the pulling and impact on the surface of the T-beam and protecting the appearance and structural integrity of the T-beam.

[0034] Combined with the current actual needs, the above-described implementation manner adopted in this application is not limited to this scope. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An assembled T-beam formwork structure, comprising a hardened ground (1), characterized in that, A bottom film (3) is arranged on the hardened ground (1), and a plurality of slide rails (2) installed on the hardened ground (1) are symmetrically arranged on both sides of the bottom film (3). The slide rails (2) are arranged in parallel along the length direction of the T-beam. A plurality of side form units (4) slidably arranged on the slide rails (2) are also symmetrically arranged on both sides of the bottom film (3). Adjacent two side form units (4) are fixedly connected by bolts. Each of the side form units (4) includes a base (5) slidably arranged on the slide rail (2), and an L-shaped side plate (6) is fixedly installed on the top of the base (5). Two mounting seats (15) are fixed on one side of the top of the L-shaped side plate (6), and a side form support frame (8) and a web form (12) are respectively rotatably connected to the two mounting seats (15). One end of each of the two sides of the side form support frame (8) is hinged to one end of each of the two sides of the L-shaped side plate (6) by a first hydraulic cylinder (7). The web form (12) is composed of a plurality of hinged web frames (1201), and a demolding plate (1203) is attached to the inner walls around the web frame (1201). The top surface of the demolding plate (1203) is flush with the top surface of the web frame (1201). A movable frame (1213) inserted into the web frame (1201) is fixed to the bottom of the demolding plate (1203). An air-powered demolding assembly for adjusting the heights of the movable frame (1213) and the demolding plate (1203) is arranged in the side form unit (4). Support assemblies for supporting the demolding plate (1203) are arranged on the inner walls on both sides of the web frame (1201).

2. The assembled T-beam formwork structure according to claim 1, characterized in that, A connecting seat (1202) is arranged between the two web forms (12) located at the inner corner. One end of the connecting seat (1202) is fixed to one side of the horizontally arranged web form (12), and the bottom of the connecting seat (1202) is hinged to the top of the vertically arranged web form (12). The two web forms (12) located at the outer corner are rotatably connected by a rotating member, and the rotating member is composed of two rotating seats connected by a pin shaft. Other adjacent two web frames (1201) are hinged to each other. The top of the side form support frame (8) is hinged to the top of the uppermost web frame (1201).

3. The assembled T-beam formwork structure according to claim 1, characterized in that, The air-powered demolding assembly includes a fixing plate (1209) fixed between the inner walls at both ends of the web frame (1201). An airbag (1210) is fixedly installed at the bottom of the fixing plate (1209). A lifting frame (1211) for squeezing the movable frame (1213) for height adjustment is fixedly installed at the bottom of the airbag (1210). The top surface of the lifting frame (1211) is attached to the bottom surface of the fixing plate (1209). A plurality of second springs (1215) are equidistantly distributed between the bottom of the movable frame (1213) and the inner wall at the bottom of the web frame (1201). A same air-blowing assembly (13) is arranged at the bottom of the airbag (1210).

4. The assembled T-beam formwork structure according to claim 3, characterized in that, The air inflation assembly (13) includes a metal bellows (1214) fixedly installed at the middle of the bottom of the airbag (1210). One end of each metal bellows (1214) is fixedly installed with a hose (1303). Through holes (1216) for the metal bellows (1214) and the hose (1303) to pass through are respectively formed at the middle of the bottom of the movable frame (1213) and the middle of the bottom of the web frame (1201). An air pump (1301) is fixedly installed on the inner wall of the bottom of the L-shaped side plate (6). A control valve is installed at the exhaust end of the air pump (1301). The exhaust end of the control valve is fixedly installed with an exhaust pipe (1302). A plurality of branch pipes are fixed on one side of the exhaust pipe (1302). One end of each branch pipe is fixedly connected with one end of the hose (1303).

5. The assembled T-beam formwork structure according to claim 4, characterized in that, The support assembly includes grooves (1204) formed on the inner walls of both sides of the web frame (1201). Support plates (1205) are slidably arranged on the inner walls of the grooves (1204). A first spring (1206) is fixedly installed between one side of each support plate (1205) and one side inner wall of the groove (1204) at equal intervals. Push-pull plates (1207) are respectively hinged between the two sides of the lifting frame (1211) and the other sides of the two support plates (1205).

6. The assembled T-beam formwork structure according to claim 5, characterized in that, Equidistantly distributed sliding rollers (1208) are respectively rotatably connected to the top corners of the support plates (1205). The stripping template (1203) is attached to the sliding rollers (1208).

7. The assembled T-beam formwork structure according to claim 6, characterized in that, Guide grooves are respectively formed at both ends of the outer walls on both sides of the fixed plate (1209). Guide rails (1212) inserted into the guide grooves are respectively fixed at both ends of the inner walls on both sides of the movable frame (1213).

8. The assembled T-beam formwork structure according to claim 1, characterized in that, A plurality of card slots (16) are respectively formed at the tops of the two L-shaped side plates (6). A pull rod (11) is inserted into two horizontally arranged card slots (16). High-strength reinforcing nuts (14) are screwed at both ends of the pull rod (11) for connection.

9. The assembled T-beam formwork structure according to claim 1, characterized in that, The side formwork support frame (8) and the web formwork (12) are both Z-shaped. The side formwork support frame (8) is attached to the outside of the web formwork (12). The two web formworks (12) are attached to both sides of the bottom film (3). A reinforcing assembly for reinforcing the side formwork support frame (8) is arranged on the L-shaped side plate (6).

10. The assembled T-beam formwork structure according to claim 9, characterized in that, The reinforcing assembly includes a second hydraulic cylinder (9) fixedly installed on the L-shaped side plate (6). The piston end of the second hydraulic cylinder (9) is fixedly installed with the same gantry reinforcing rib (10). The gantry reinforcing rib (10) is attached to one side top of the side formwork support frame (8).

Images