Prefabricated T-beam diaphragm plate pouring mold

Abstract

The utility model discloses a prefabricated T-beam diaphragm plate casting mould, relates to T-beam diaphragm plate technical field, including T-beam, also including casting mould, support bottom platform and self-matching regulation mechanism, the casting mould includes fixed side template and end template, the end template is provided at the bottom, fixed side template is symmetrically provided at the front side and the rear side of end template, the support bottom platform is provided with the self-matching regulation mechanism, and the support bottom platform is provided with the self-matching regulation mechanism. By using the prefabricated T-beam diaphragm plate pouring mold, the time and labor force for erecting and dismantling a scaffold in a traditional construction method can be reduced, so that the construction efficiency is improved, the design of the mold is allowed to be adjusted according to the sizes and shapes of different T-shaped beams, and the construction efficiency is improved. And the self-matching regulation and control mechanism can automatically adjust the position of the movable side template, so that the template is completely attached to the side wall of the T-shaped beam, the quality problems of slurry leakage, slab staggering, bubbles and the like of the contact surface of new and old concrete are reduced, and the construction quality is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of T-beam diaphragms, and particularly relates to a casting mold for precast T-beam diaphragms. Background Art

[0002] A diaphragm is a member arranged between beams to maintain the cross-sectional shape and enhance the lateral stiffness. It acts on the live load distributed on the bridge. Cast-in-place concrete diaphragms are usually used for precast prestressed concrete T-beams. The T-beam includes an intermediate beam extending along the longitudinal bridge direction and a top beam connected to the upper end of the intermediate beam. The top beam extends the intermediate beam on both sides along the transverse bridge direction. The intermediate beam includes an intermediate beam steel skeleton and intermediate beam concrete cast in the intermediate beam steel skeleton. The diaphragm includes a diaphragm steel skeleton and diaphragm concrete cast in the diaphragm steel skeleton. The diaphragm steel skeleton is connected to the intermediate beam steel, and the intermediate beam concrete is cast together with the diaphragm concrete. For a T-beam with a diaphragm, the diaphragm and the intermediate beam are not cast together at one time, but the diaphragm casting mold is subsequently built and fixed on both sides of the intermediate beam for casting. Therefore, it is necessary to build a diaphragm casting mold on both sides of the intermediate beam after the T-beam is built to cast the diaphragm.

[0003] At present, there are mainly two methods for the construction of the cast-in-place section of the diaphragm. One is to support the bottom mold by erecting a scaffold under the bridge and use the scaffold as an operation platform for construction pouring; the other is to hang the bottom mold with iron wires and fix it on the bridge deck, and the construction workers carry out steel bar and formwork construction through a simple hanging basket. Among them, in the first method, the erection and removal of the scaffold take a long time and cost a lot; in the second method, due to the large height of the diaphragm, the binding force of the iron wire on the bottom mold is limited, which easily leads to quality problems such as leakage of mortar, offset, and air bubbles at the interface between the new and old concrete at the junction of the diaphragm and the T-beam. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a casting mold for precast T-beam diaphragms. By using the casting mold for precast T-beam diaphragms, the time and labor for erecting and removing the scaffold in the traditional construction method can be reduced, thereby improving the construction efficiency. Moreover, the design of the mold enables the connection between the diaphragm and the T-beam to fit tightly, reducing quality problems such as leakage of mortar, offset, and air bubbles at the interface between the new and old concrete, and ensuring the construction quality.

[0005] The solution adopted by the present utility model to solve its technical problems is as follows: A precast T-beam diaphragm pouring mold, including a T-beam, further includes a pouring mold, a supporting base platform and a self-matching regulation mechanism. The pouring mold includes a fixed side formwork and an end formwork. The end formwork is arranged at the bottom, and the fixed side formworks are symmetrically arranged on the front and rear sides of the end formwork. The left and right ends of the end formwork are symmetrically sleeved with movable side formworks through a guiding assembly, and the movable side formworks can be controlled to move outwards by the self-matching regulation mechanism. The supporting base platform includes a fixed oil tank arranged below the end formwork. A pushing platform is vertically sleeved below the fixed oil tank. A piston plate matched with the fixed oil tank is installed above the pushing platform. A sealed oil cavity is formed between the piston plate and the fixed oil tank. A pushing seat is fixed on the outer side of the movable side formwork. The self-matching regulation mechanism includes an oil cylinder horizontally fixed at the outer center of the fixed side formwork. Two piston blocks are symmetrically arranged left and right in the oil cylinder. An adjusting oil cavity is hermetically formed between the adjacent piston blocks and the oil cylinder. The adjusting oil cavity is connected to the sealed oil cavity through an oil pipe, and a pressure control valve is installed on the oil pipe. A piston rod is fixed on the outer side of the piston block, and the outer end of the piston rod is connected to the pushing seat on the same side of the movable side formwork.

[0006] Further, a connecting section extending outwards is arranged at the lower end of the fixed side formwork. Corresponding threaded holes are provided on the connecting section and the end formwork. The fixed side formwork and the end formwork can be installed as a whole through installation bolts.

[0007] Further, the guiding assembly includes two sliding rods horizontally arranged above and below the outer side of the fixed side formwork. Sliding sleeves are fixed above and below the pushing seat, and the sliding sleeves are slidably sleeved on the sliding rods.

[0008] Further, stepped convex portions inclined outwards are symmetrically arranged at positions near the lower part of the longitudinal beam support end of the T-beam. A stepped concave portion is arranged below the outer end of the end formwork, and the stepped concave portion can be completely matched and attached to the stepped convex portion.

[0009] Further, two limiting ring seats are symmetrically fixed at positions near the center in the oil cylinder.

[0010] Further, a pouring port is arranged on the fixed side formwork.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The utility model improves the construction efficiency by reducing the time and labor for erecting and dismantling scaffolding in the traditional construction method through the provision of a casting mold, a supporting base platform and a self-matching regulation mechanism. By using the precast T-beam diaphragm casting mold, the design of the mold allows for adjustment according to different T-beam sizes and shapes, with strong adaptability and versatility. The supporting base platform and the jacking mechanism are used for positioning and supporting the mold, reducing the risk of high-altitude operations and improving construction safety. When jacking the casting mold, the jacking mechanism can cooperate with the self-matching regulation mechanism, which can automatically adjust the position of the movable side formwork to make the formwork fit perfectly with the side wall of the T-beam, reducing quality problems such as leakage of mortar, offset and air bubbles at the contact surface between the new and old concrete, ensuring construction quality, reducing the need for manual adjustment, simplifying construction operations, and automatically increasing the thickness of the concrete at the connection part between the diaphragm and the T-beam, thereby improving the strength at the connection and enhancing the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic structural diagram of the utility model in the use state;

[0014] Figure 2 FIG. is a three-dimensional structural diagram of the utility model;

[0015] Figure 3 FIG. is an exploded structural diagram of the utility model;

[0016] Figure 4 FIG. is a partial sectional structural diagram of the utility model.

[0017] In the figure: 1, T-beam; 1a, step convex part; 2, casting mold; 21, fixed side formwork; 22, movable side formwork; 23, end formwork; 24, cushion platform; 25, pouring port; 2a, step concave part; 3, guiding assembly; 31, sliding rod; 32, pushing seat; 33, sliding sleeve; 4, supporting base platform; 41, fixed oil tank; 42, jacking platform; 43, piston plate; 5, self-matching regulation mechanism; 51, oil cylinder; 52, oil pipe; 53, pressure control valve; 54, piston block; 55, piston rod; 56, limit ring seat; 6, installation bolt; 7, jacking mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the utility model in conjunction with the drawings and embodiments.

[0019] Please refer to Figures 1-4 , the utility model provides a technical solution for a precast T-beam diaphragm casting mold: Embodiment

[0020] According to Figure 1As shown in the figure, the pouring mold 2 is matched and located in the middle of the T-shaped beam 1. A supporting base 4 is arranged below the pouring mold 2. The pushing mechanism 7 provides pushing support for the pouring mold 2 through the supporting base 4, pushes the pouring mold 2 into the partition space between the adjacent longitudinal beams of the T-shaped beam 1, and supports the pouring mold 2 to be stably in the partition space between the adjacent longitudinal beams. The cross partition can be poured and formed between the adjacent longitudinal beams of the T-shaped beam 1 through the pouring mold 2.

[0021] The specific structure of the pouring mold 2 is as Figure 2 and Figure 3 shown, including a fixed side template 21 and an end template 23. The end template 23 is arranged at the bottom and has a length equal to the distance between the adjacent longitudinal beams. The end template 23 can extend between the adjacent longitudinal beams. A cushion table 24 is arranged on the end template 23. The lower end of the fixed side template 21 is provided with an outwardly extending connecting section. Threaded holes are opened on both sides of the connecting section and the cushion table 24. The fixed side template 21 can be symmetrically installed on the front and rear sides of the cushion table 24 on the end template 23 through mounting bolts 6. The basic pouring mold can be formed by the fixed side template 21 and the end template 23. Two groups of movable side templates 22 are symmetrically slidably sleeved on the left and right ends of the end template 23 through a guiding assembly 3, and the movable side templates 22 can be controlled to move outward through a self-matching adjustment mechanism 5, so that the movable side templates 22 can be completely attached to the side walls of the adjacent longitudinal beams without gaps. An integral pouring mold can be formed by the fixed side template 21, the movable side templates 22, the end template 23 and the side walls of the longitudinal beams. A pouring port 25 is arranged on one of the fixed side templates 21. Concrete can be introduced into the pouring mold through the pouring port 25 to pour the cross partition on the T-shaped beam 1.

[0022] According to Figure 4As shown in the figure, the supporting base 4 includes a fixed oil tank 41 arranged below the end formwork 23. A pushing platform 42 is vertically and slidably sleeved below the fixed oil tank 41. A piston plate 43 is installed above the pushing platform 42. The piston plate 43 can be arranged in the fixed oil tank 41 in a matching manner and form a sealed oil chamber with the fixed oil tank 41. The oil chamber is filled with hydraulic oil. The pushing mechanism 7 can choose to use a lift or a jack to support the casting mold 2 according to the actual bridge construction situation. Here, a scissor lift is taken as an example. When in use, the pushing platform 42 is fixed on the lifting platform of the scissor lift by bolts or other means. Then, the pushing mechanism 7 pushes the supporting base 4 to drive the casting mold 2 to move upward into the space between adjacent longitudinal beams. When the casting mold 2 has not contacted the cross beam of the T-shaped beam 1, the supporting base 4 maintains a stable pressure state and steadily drives the casting mold 2 to move upward. When the top end of the fixed side formwork 21 contacts the cross beam of the T-shaped beam 1, at this time, the pushing mechanism 7 continues to push the supporting base 4 and the casting mold 2 upward for a certain distance. Due to the buffering effect of the sealed oil chamber, it can ensure that the top of the casting mold 2 is completely in contact with the lower wall of the cross beam, preventing a gap from remaining between the top of the casting mold 2 and the lower wall of the cross beam.

[0023] A pushing seat 32 is vertically welded and fixed on the outer side of the movable side formwork 22. The self-matching regulation mechanism 5 includes an oil cylinder 51 and an oil pipe 52. The oil cylinder 51 is horizontally fixed at the central position on the outer side of the fixed side formwork 21, and the two ends of the oil cylinder 51 are open and facing the two pushing seats 32. Two piston blocks 54 are symmetrically arranged in the oil cylinder 51 in a left-right matching manner. An adjusting oil chamber is sealed between the adjacent piston blocks 54 and the oil cylinder 51. A piston rod 55 is fixed on the outer side of the piston block 54, and the piston rod 55 extends outward through the two ends of the oil cylinder 51. The outer end of the piston rod 55 is connected to the pushing seat 32 on the same side of the movable side formwork 22. The adjusting oil chamber is connected to the sealed oil chamber of the supporting base 4 through the oil pipe 52, and a pressure control valve 53 is installed on the oil pipe 52. When the upper part of the casting mold 2 contacts the lower wall of the cross beam and the pressure in the sealed oil chamber reaches the set value during the continuous pushing process of the pushing mechanism 7, the pressure control valve 53 can automatically open to press the oil in the sealed oil chamber into the adjusting oil chamber, pushing the piston blocks 54 to move to both sides, and then pushing the piston rods 55 to extend to both sides, driving the two ends of the movable side formwork 22 to move to both sides to be completely in contact with the side walls of the longitudinal beams of the T-shaped beam 1, avoiding a gap remaining between the two ends of the side formwork and the side walls of the longitudinal beams, resulting in concrete leakage.

[0024] Two limit ring seats 56 are symmetrically fixed at a position close to the center in the oil cylinder 51. The movement of the piston blocks 54 can be limited through the limit ring seats 56 to prevent the hydraulic oil from not being able to enter the oil cylinder 51 after the two piston blocks 54 are in contact.

[0025] Since the movable side formwork 22 is arranged outside the fixed side formwork 21, there is a step that extends on both sides between the movable side formwork 22 and the fixed side formwork 21. In this way, when the diaphragm is poured, the thickness of the concrete at the part connected to the side wall of the longitudinal beam will increase to a certain extent, thereby improving the strength of the connection part.

[0026] The guiding assembly 3 includes two sliding rods 31 horizontally arranged above and below the outside of the fixed side formwork 21. Sliding sleeves 33 are respectively fixed above and below the two pushing seats 32, and the sliding sleeves 33 are slidably sleeved on the sliding rods 31. The position of the movable side formwork 22 can be limited through the sliding sleeves 33 and the sliding rods 31, ensuring that the movable side formwork 22 is always in seamless fit with the fixed side formwork 21. And when the self-matching control mechanism 5 controls the movable side formwork 22 to move to both sides, the sliding rods 31 and the sliding sleeves 33 can also provide guidance for the movement of the movable side formwork 22, so that the movable side formwork 22 moves in contact with the side wall of the T-shaped beam 1 in a predetermined direction, improving the stability of the movement of the movable side formwork 22.

[0027] During specific use, for a precast T-beam diaphragm pouring mold of the present utility model, first, the fixed side formwork 21 is installed on the end formwork 23 through the installation bolts 6 to form a basic pouring mold. Then, the pouring mold 2 is fixed above the jacking mechanism 7 through the support base 4 and the pouring mold 2 is located in the middle of adjacent longitudinal beams. Then, the jacking mechanism 7 is controlled to start, pushing the support base 4 and the pouring mold 2 to move upward, so that the pouring mold 2 enters between adjacent longitudinal beams. When the top of the pouring mold 2 contacts the lower wall of the cross beam, the jacking mechanism 7 continues to apply force. Since the pouring mold 2 has been in complete fit with the lower wall of the cross beam and cannot move upward any further, when the pressure of the support base 4 reaches the preset value, the pressure control valve 53 will automatically open, and the hydraulic oil in the fixed oil tank 41 will be pressed into the oil cylinder 51, and simultaneously push the two piston blocks 54 to move outward, and then push the movable side formworks 22 at both ends to move to both sides through the piston rods 55, so that they are in fit with the side walls of the longitudinal beams of the T-shaped beam 1. When the pouring mold 2 is in complete fit with the side walls of the longitudinal beams, the jacking mechanism 7 stops operating and remains in the current state to provide support for the pouring mold 2. Since the upper part and both sides of the pouring mold 2 are in complete fit and contact with the side walls of the T-shaped beam 1 without gaps, it can avoid the occurrence of slurry leakage when pouring concrete. Finally, concrete is poured into the mold through the pouring port 25. After the concrete is formed, the side formwork and the end formwork are separated through the installation bolts 6, the mold is removed and taken away, and a diaphragm can be poured on the T-shaped beam 1. Embodiment

[0028] On the basis of Embodiment 1, as Figure 1As shown in the figure, stepped convex portions 1a that are symmetrically arranged and inclined outward are provided at positions near the lower part of the longitudinal beam support end of the T-shaped beam 1. By means of the stepped convex portions 1a, the support range of the lower end face of the longitudinal beam of the T-shaped beam 1 can be increased, and the support stability effect of the T-shaped beam 1 can be improved. In order to enable the formed diaphragm to match the side wall of the longitudinal beam of the T-shaped beam 1, stepped concave portions 2a that are matched with the stepped convex portions 1a are provided below the outer end of the end formwork. When the movable side formwork 22 moves outward and fits against the side wall of the longitudinal beam, the stepped concave portions 2a can also completely match and fit with the stepped convex portions 1a. Moreover, regardless of the shape of the side wall of the longitudinal beam, the outer side of the movable side formwork 22 can be set to a shape structure that is complementary to and matches the side wall of the longitudinal beam, so as to ensure that the cast-in-place diaphragm can be completely and properly arranged between adjacent longitudinal beams to play a role in the live load of the bridge.

[0029] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A precast T-beam diaphragm casting mold, comprising a T-beam (1), characterized in that, It further includes a pouring mold (2), a supporting base (4) and a self-matching regulating mechanism (5). The pouring mold (2) includes a fixed side formwork (21) and an end formwork (23). The end formwork (23) is arranged at the bottom, and the fixed side formworks (21) are symmetrically arranged on the front and rear sides of the end formwork (23). The left and right ends of the end formwork (23) are symmetrically sleeved with movable side formworks (22) through guiding components (3), and the movable side formworks (22) can be controlled to move outwards by the self-matching regulating mechanism (5). The supporting base (4) includes a fixed oil tank (41) arranged below the end formwork (23). A pushing platform (42) is vertically sleeved below the fixed oil tank (41). A piston plate (43) that is matched and arranged in the fixed oil tank (41) is installed above the pushing platform (42). A sealed oil cavity is formed between the piston plate (43) and the fixed oil tank (41). A pushing seat (32) is fixed on the outer side of the movable side formwork (22). The self-matching regulating mechanism (5) includes an oil cylinder (51). The oil cylinder (51) is horizontally fixed at the outer center of the fixed side formwork (21). Two piston blocks (54) are symmetrically and matchedly arranged in the oil cylinder (51) from left to right. An adjusting oil cavity is hermetically formed between the adjacent piston blocks (54) and the oil cylinder (51). The adjusting oil cavity is communicated with the sealed oil cavity through an oil pipe (52), and a pressure control valve (53) is installed on the oil pipe (52). A piston rod (55) is fixed on the outer side of the piston block (54), and the outer end of the piston rod (55) is connected to the pushing seat (32) on the same-side movable side formwork (22).

2. The precast T-beam diaphragm casting mold according to claim 1, characterized in that: A connecting section extending outwards is arranged at the lower end of the fixed side formwork (21). Corresponding threaded holes are formed in the connecting section and the end formwork (23). The fixed side formwork (21) and the end formwork (23) can be installed as a whole through mounting bolts (6).

3. A precast T-beam diaphragm casting mold according to claim 1, characterized in that: The guiding component (3) includes two sliding rods (31) horizontally arranged above and below the outer side of the fixed side formwork (21). Sliding sleeves (33) are fixed above and below the pushing seat (32). The sliding sleeves (33) are slidably sleeved on the sliding rods (31).

4. A precast T-beam diaphragm casting mold according to claim 1, characterized in that: Step convex parts (1a) that are inclined outwards are symmetrically arranged at positions close to the lower part of the longitudinal beam supporting end of the T-shaped beam (1). A step concave part (2a) is arranged below the outer end of the end formwork (23). The step concave part (2a) can be completely matched and attached to the step convex part (1a).

5. A precast T-beam diaphragm casting mold according to claim 1, characterized in that: Two limiting ring seats (56) are symmetrically fixed at positions close to the center in the oil cylinder (51).

6. A precast T-beam diaphragm casting mold according to claim 1, characterized in that: A pouring port (25) is arranged on the fixed side formwork (21).

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