A prefabricated composite beam and double T-plate combined structure

Abstract

The present invention discloses a prefabricated composite beam and double T-plate combined structure, comprising a prefabricated beam and a plate body, wherein an embedded part is fixedly provided on the prefabricated beam, a fine-tuning block is slidably provided on the embedded part, a square tube is fixedly provided on the plate body, a strut is slidably provided on the square tube, the strut is abutted against the fine-tuning block; a pull rod is slidably provided on the square tube, a fastener is fixedly provided on the prefabricated beam, a bayonet is provided on the fastener, and the pull rod is located in the bayonet; by arranging the fine-tuning block on the embedded part of the prefabricated beam, during the hoisting process of the plate body, the strut is first abutted against the fine-tuning block, and with the cooperation of the lifting device, the plate body is fine-tuned to be aligned with the adjacent plate body, so that the plate body can be aligned during the laying process, and in the fine-tuning process, excessive friction or even collision between the plate body and the prefabricated beam is avoided, thereby improving the laying effect of the plate body, facilitating subsequent construction, and improving the quality and safety of the project.

Description

Technical Field

[0001] The invention relates to the technical field of concrete structures in civil engineering, and in particular to a prefabricated composite beam and double T-plate combined structure. Background Art

[0002] Precast composite beams and double T-plates (also called double T-beams or double T-plates) are commonly used structural components in modern construction projects. The combination of the two can effectively improve the bearing capacity and construction efficiency of the building. Precast composite beams are a kind of concrete beams prefabricated in a factory with high strength and stability. Double T-plates are a kind of prestressed concrete components with a double T-shaped section, which are mainly used for floor or roof systems.

[0003] Prefabricated composite beams and double T-plates are usually used in large-span buildings, industrial plants and high-rise buildings. During construction, anchors are generally set on the prefabricated beams, and then the double T-plates are placed in a fixed position so that their bottoms are aligned with the beams, and then the double T-plates and prefabricated beams are fixed by anchors.

[0004] In the prior art, after the double T-plate and the bottom of the precast beam are aligned, it is difficult to align and fine-tune the double T-plate due to its heavy weight, resulting in that multiple double T-plates on the precast beam are difficult to align accurately. Thus, after multiple double T-plates are installed, although the adjacent double T-plates are almost the same, the separated double T-plates are difficult to align, resulting in a gap between the double T-plates on the beam and the beam, which leads to construction difficulties in the subsequent sealing, caulking, and pouring processes, and even affects the quality and safety of the project. Summary of the invention

[0005] The object of the present invention is to provide a prefabricated composite beam and double T-plate combined structure to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A prefabricated composite beam and double T-plate combined structure, comprising a prefabricated beam and a plate body, wherein an embedded part is fixedly arranged on the prefabricated beam, a fine-tuning block is slidably arranged on the embedded part, a square tube is fixedly arranged on the plate body, a support rod is slidably arranged on the square tube, and the support rod abuts against the fine-tuning block;

[0008] A pull rod is slidably arranged on the square tube, a fastener is fixedly arranged on the prefabricated beam, a bayonet is arranged on the fastener, and the pull rod is located in the bayonet;

[0009] It also includes a pressing piece, which is used to lock the support rod while tightening the pull rod;

[0010] The reinforcement piece is used to further fix the pull rod.

[0011] Preferably, a spring is provided between the support rod and the square tube, and two ends of the spring are fixedly connected to the support rod and the square tube respectively.

[0012] Preferably, the pressing member comprises a pressing block slidably disposed on the square tube, a protrusion is fixedly disposed on the pressing block, an inclined groove is disposed on the pull rod, and the protrusion is slidably disposed in the inclined groove.

[0013] Preferably, a locking block is fixedly provided on the pull rod, a locking groove is provided on the support rod, the locking block is in an inverted T shape, and the locking groove includes an inserting portion and a locking portion.

[0014] Preferably, a pin is fixedly provided on the square tube, a through hole is provided on the support rod, a calibration hole is provided on the fine-tuning block, and the pin passes through the through hole and is plugged into the calibration hole.

[0015] Preferably, the reinforcement member comprises a threaded tube fixed on the square tube, a clamping bolt is threadedly connected to the threaded tube, and the clamping bolt is in abutment with the pull rod.

[0016] Preferably, a tightening bolt is rotatably provided on the square tube, and the tightening bolt is threadedly connected to the lower pressing block.

[0017] Preferably, the bayonet radius is larger than the pull rod.

[0018] Preferably, the pin is provided with a frustum surface, and is plugged into the calibration hole through the frustum surface.

[0019] Preferably, the embedded parts and the fine-tuning blocks are lower than the contact surface between the prefabricated beam and the plate body.

[0020] In the above technical solution, the prefabricated composite beam and double T-plate combined structure provided by the present invention has the following beneficial effects:

[0021] By setting fine-tuning blocks on the embedded parts of the precast beams, during the hoisting process of the plate, the support rods are first abutted against the fine-tuning blocks, and with the cooperation of the lifting device, the plate is fine-tuned to align it with the adjacent plates, so that the plates can be aligned during the laying process. During the fine-tuning process, excessive friction or even collision between the plate and the precast beams is avoided, thereby improving the laying effect of the plate, facilitating subsequent construction, and improving the quality and safety of the project.

[0022] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0023] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of a prefabricated beam and plate structure provided in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the bottom structure of the prefabricated beam and the plate provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of a square tube provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of the lower pressing block provided in an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of a pull rod structure provided by an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the structure of a reinforcement member provided in an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of a support rod structure provided by an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of a fastener structure provided by an embodiment of the present invention;

[0033] Fig. 9 A schematic diagram of the embedded component structure provided in an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Precast beam; 2. Plate; 3. Fastener; 31. Bayonet; 4. Embedded part; 41. Fine-tuning block; 42. Proofing hole; 5. Square tube; 51. Threaded tube; 52. Tightening bolt; 53. Pin; 6. Pull rod; 61. Bevel groove; 62. Locking block; 7. Strut; 71. Spring; 72. Locking groove; 73. Through hole; 8. Pressing block; 81. Bump; 9. Tightening bolt. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0037] Please refer to 1-9, a prefabricated composite beam and double T-plate combination structure, including a prefabricated beam 1 and a plate body 2, an embedded part 4 is fixedly provided on the prefabricated beam 1, a fine-tuning block 41 is slidably provided on the embedded part 4, a square tube 5 is fixedly provided on the plate body 2, a support rod 7 is slidably provided on the square tube 5, and the support rod 7 abuts against the fine-tuning block 41; a pull rod 6 is slidably provided on the square tube 5, a fastener 3 is fixedly provided on the prefabricated beam 1, a bayonet 31 is provided on the fastener 3, and the pull rod 6 is located in the bayonet 31; it also includes a pressing member, which is used to lock the support rod 7 while tightening the support rod 6; a reinforcing member, which is used to further fix the support rod 6, so that the support rod 7 abuts against the fine-tuning block 41 on the embedded part 4 when the plate body 2 is arranged and fixed, and when the support rod 7 and the fine-tuning block By cooperating with 41, the plate body 2 can be moved and fine-tuned through the lifting device to align it with the adjacent plate body 2 that has been laid out, thereby improving the neatness of the plate body 2 during the laying process and the convenience of subsequent construction. In the process of fine-tuning, excessive friction or even collision between the plate body 2 and the precast beam 1 is avoided, and damage to the plate body 2 and the precast beam 1 is avoided, thereby improving the quality of the project. After the fine-tuning, the plate body 2 and the precast beam 1 are fixed by the tightening effect of the pull rod 6 and the bayonet 31. At the same time, by setting a downward pressure piece, the support rod 7 is fixed in the process of sliding the pull rod 6 and tightening the bayonet 31, thereby improving the stability of the plate body 2 after laying out, and then the pull rod 6 is further fixed by the reinforcement member to improve the connection stability between the pull rod 6 and the fastener 3.

[0038] Specifically, a spring 71 is provided between the support rod 7 and the square tube 5, and the two ends of the spring 71 are fixedly connected to the support rod 7 and the square tube 5 respectively. When the support rod 7 contacts with the fine-tuning block 41, under the action of the gravity of the plate body 2, the support rod 7 slides in the square tube 5, and the spring 71 stretches. The restoring force of the spring 71 after the extension further improves the abutment stability of the support rod 7 and the fine-tuning block 41, so that during the fine-tuning process of the plate body 2, the synchronous movement of the support rod 7 and the fine-tuning block 41 is more stable.

[0039] In an embodiment further provided by the present invention, the lower pressing member includes a lower pressing block 8 slidably arranged on the square tube 5, a protrusion 81 is fixedly arranged on the lower pressing block 8, an inclined groove 61 is arranged on the pull rod 6, the protrusion 81 is slidably arranged in the inclined groove 61, a tightening bolt 9 is rotatably arranged on the square tube 5, and the tightening bolt 9 is threadedly connected to the lower pressing block 8. After the plate body 2 is fine-tuned, the lower pressing block 8 is moved downward by rotating the tightening bolt 9, and the pull rod 6 is slid and clamped with the bayonet 31 through the cooperation of the protrusion 81 and the inclined groove 61, so that the plate body 2 is fixed through the pull rod 6 and the fastener 3.

[0040] Furthermore, a locking block 62 is fixedly provided on the pull rod 6, and a locking groove 72 is provided on the support rod 7. The locking block 62 is in an inverted T shape, and the locking groove 72 includes an inserting portion and a locking portion. When the plate body 2 is slowly lowered by the lifting device and the support rod 7 slides in the square tube 5, the locking block 62 is inserted into the inserting portion of the locking groove 72, and after the plate body 2 is fine-tuned, during the sliding process of the pull rod 6, the locking block 62 slides from the inserting portion of the locking groove 72 to the locking portion, thereby completing the fixation of the support rod 7 and avoiding the restoring force of the spring 71 after the extension directly acting on the support rod 7 and the fine-tuning block 41, thereby affecting the stability of the plate body 2 after layout.

[0041] Furthermore, a pin 53 is fixedly provided on the square tube 5, a through hole 73 is provided on the support rod 7, and a calibration hole 42 is provided on the fine-tuning block 41. The pin 53 passes through the through hole 73 and is plugged into the calibration hole 42. When the plate body 2 is slowly lowered by the lifting device, the pin 53 passes through the through hole 73 and is plugged into the calibration hole 42, and the plate body 2 is lifted. During the fine-tuning process, the fine-tuning block 41 moves with the plate body 2, so that the fine-tuning block 41 can better assist the lifting device, fine-tune the plate body 2, and enhance the supporting effect on the plate body 2.

[0042] In an embodiment further provided by the present invention, the reinforcement includes a threaded tube 51 fixed on the square tube 5, and a tightening bolt 52 is screwed on the threaded tube 51, and the tightening bolt 52 is in abutment with the pull rod 6. After the plate body 2 is laid out, the pull rod 6 is clamped with the bayonet 31 of the fastener 3, and the pull rod 6 is disengaged from the tightening bolt 52 due to its own sliding. At this time, the tightening bolt 52 is rotated, and under the action of the threaded tube 51, the tightening bolt 52 and the pull rod 6 are tightened again, thereby further fixing the pull rod 6 and improving the stability of the plate body 2 after layout.

[0043] In the embodiment provided by the present invention, the radius of the bayonet 31 is larger than the pull rod 6. The plate body 2 slowly descends under the action of the lifting device. When the pull rod 6 enters the bayonet 31, the plate body 2 is then fine-tuned. Because the radius of the bayonet 31 is larger than the radius of the pull rod 6, the pull rod 6 moves with the fine-tuning of the plate body 2 without affecting the fastener 3.

[0044] Specifically, a frustum is provided on the pin 53, and the frustum is connected to the proofreading hole 42 through the frustum. The frustum is provided on the pin 53 so that the pin 53 can pass through the through hole 73 and be connected to the proofreading hole 42 more smoothly, thus avoiding the pin 53 from being misaligned with the proofreading hole 42.

[0045] In the solution further provided by the present invention, the embedded part 4 and the fine-tuning block 41 are lower than the contact surface between the prefabricated beam 1 and the plate body 2, so that after the plate body 2 is fine-tuned and arranged, the plate body 2 can better contact with the prefabricated beam 1, thereby improving the stability of the arrangement of the plate body 2.

[0046] When the present invention is under construction, the plate body 2 is lifted by the lifting device. During the placement process, the support rod 7 is aligned with the fine-tuning block 41, and the plate body 2 is slowly lowered. During the lowering process, the pin 53 on the square tube 5 passes through the through hole 73 and is plugged into the proofreading hole 42, and the support rod 7 slides in the square tube 5 under the pressure of the plate body 2, and the spring 71 is stretched. When it is lowered to the plug-in portion where the locking block 62 is plugged into the locking groove 72, and the pull rod 6 is located inside the bayonet 31, the plate body 2 is laterally fine-tuned to align it with the adjacent arranged plate body 2. During this process, under the action of the pin 53, the fine-tuning block 41 slides with the fine-tuning of the plate body 2, and during the fine-tuning movement of the plate body 2, because the radius of the bayonet 31 is larger than the radius of the pull rod 6, the pull rod 6 moves with the fine-tuning of the plate body 2 without affecting the fastener 3.

[0047] After the position of the plate body 2 is adjusted, the tightening bolt 9 is rotated, the pressing block 8 is lowered, and under the cooperation of the protrusion 81 and the inclined groove 61, the pull rod 6 slides and is pressed against the bayonet 31, thereby completing the fixation of the plate body 2. In the sliding process of the pull rod 6, the locking block 62 on the pull rod 6 slides from the plug-in part of the locking groove 72 to the locking part, fixes the support rod 7, and prevents the restoring force of the spring 71 from being stretched and directly acting on the fine-tuning block 41 through the support rod 7 to generate a reverse force. Then, the tightening bolt 52 is rotated to cooperate with the threaded tube 51, and the pull rod 6 is further tightened to improve the stability of the clamping of the pull rod 6 and the bayonet 31.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prefabricated composite beam and double T-plate combined structure, comprising a prefabricated beam (1) and a plate body (2), characterized in that: An embedded part (4) is fixedly provided on the prefabricated beam (1), a fine-tuning block (41) is slidably provided on the embedded part (4), a square tube (5) is fixedly provided on the plate body (2), a support rod (7) is slidably provided on the square tube (5), and the support rod (7) is in contact with the fine-tuning block (41); A pull rod (6) is slidably provided on the square tube (5), a fastener (3) is fixedly provided on the prefabricated beam (1), a bayonet (31) is provided on the fastener (3), and the pull rod (6) is located in the bayonet (31); It also includes a pressing piece, which is used to lock the support rod (7) while tightening the pull rod (6); A reinforcement member, used to further fix the pull rod (6); The pressing member comprises a pressing block (8) slidably arranged on the square tube (5), a protrusion (81) being fixedly arranged on the pressing block (8), an inclined groove (61) being arranged on the pull rod (6), and the protrusion (81) being slidably arranged in the inclined groove (61); A locking block (62) is fixedly provided on the pull rod (6), and a locking groove (72) is provided on the support rod (7); the locking block (62) is in an inverted T shape, and the locking groove (72) comprises an inserting portion and a locking portion.

2. The prefabricated composite beam and double T-plate combined structure according to claim 1, characterized in that: A spring (71) is provided between the support rod (7) and the square tube (5), and two ends of the spring (71) are fixedly connected to the support rod (7) and the square tube (5) respectively.

3. The prefabricated composite beam and double T-plate combined structure according to claim 1, characterized in that: The square tube (5) is fixedly provided with a pin (53), the support rod (7) is provided with a through hole (73), the fine-tuning block (41) is provided with a calibration hole (42), and the pin (53) passes through the through hole (73) and is plugged into the calibration hole (42).

4. The prefabricated composite beam and double T-plate combined structure according to claim 1, characterized in that: The reinforcing member comprises a threaded tube (51) fixed on the square tube (5), a clamping bolt (52) being threadedly connected to the threaded tube (51), and the clamping bolt (52) is in abutment with the pull rod (6).

5. The prefabricated composite beam and double T-plate combined structure according to claim 3, characterized in that: A tensioning bolt (9) is rotatably provided on the square tube (5), and the tensioning bolt (9) is threadedly connected to the lower pressing block (8).

6. The prefabricated composite beam and double T-plate combined structure according to claim 1, characterized in that: The radius of the bayonet (31) is greater than that of the pull rod (6).

7. The prefabricated composite beam and double T-plate combined structure according to claim 3, characterized in that: The pin (53) is provided with a round table surface, and is plugged into the calibration hole (42) via the round table surface.

8. The prefabricated composite beam and double T-plate combined structure according to claim 1, characterized in that: The embedded part (4) and the fine-tuning block (41) are lower than the contact surface between the prefabricated beam (1) and the plate body (2).

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