Precast concrete simply supported composite beam

Abstract

The utility model relates to a precast concrete simply supported composite beam, and relates to the technical field of precast concrete components. The beam comprises a beam body, and end sealing plates are embedded in the two ends of the beam body respectively. A plurality of longitudinal reinforcing ribs are embedded in the beam body and arranged in the length direction of the beam body. A plurality of stirrups are further embedded in the beam body and arranged in an array mode in the length direction of the beam body. The top ends of the stirrups are located in the beam body. A connecting piece used for being connected with a prefabricated floor plate is pre-buried in the beam body, and the top of the connecting piece extends out of the upper surface of the beam body. The method has the effect that the prefabricated floor plate is rapidly installed and fixed, and therefore the construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of precast concrete components, and particularly to a precast concrete simply supported composite beam. Background Art

[0002] A simply supported beam is a beam structure in building construction that is supported at both ends on supports and is used to bear vertical loads.

[0003] In the prior art, there is a designed simply supported beam, which includes a beam body. Head plates are fixedly connected to both ends of the beam body respectively. Inside the beam body, multiple longitudinal reinforcing bars penetrating the beam body are embedded along its length direction; multiple stirrups are also embedded inside the beam body along the direction of its cross-section, and the stirrups are arranged in an array along the length direction of the beam body; the top ends of the stirrups extend out of the upper surface of the beam body to facilitate bonding and fixing with the cast-in-place concrete.

[0004] Regarding the above related technology, the inventor found that the stirrups inside the beam body extending out of the upper surface of the beam body make it difficult for the beam body to directly bear the floor slab. Therefore, when using this related technology, construction workers need to build a formwork and then cast concrete to fix the floor slab to the beam body. This construction method is time-consuming and laborious, so improvement is needed. Utility Model Content

[0005] In order to improve construction efficiency, this application provides a precast concrete simply supported composite beam.

[0006] The precast concrete simply supported composite beam provided by this application adopts the following technical scheme:

[0007] A precast concrete simply supported composite beam includes a beam body. Head plates are embedded at both ends of the beam body respectively; several longitudinal reinforcing bars are embedded inside the beam body, and the longitudinal reinforcing bars are arranged along the length direction of the beam body; several stirrups are also embedded inside the beam body, and the stirrups are arranged in an array along the length direction of the beam body; the top ends of the stirrups are located inside the beam body; a connecting piece for connecting with a precast floor slab is embedded inside the beam body, and the top of the connecting piece extends out of the upper surface of the beam body.

[0008] By adopting the above technical scheme, the stirrups with their top ends embedded inside the beam body, on the one hand, enhance the overall stiffness of the beam body, and on the other hand, can make the upper surface of the beam body flatter, that is, the precast floor slab can be quickly and stably placed on the beam body; in addition, the setting of the connecting piece can position the precast floor slab, thus realizing rapid construction, that is, improving construction efficiency.

[0009] Preferably, the connecting member includes a transition plate and connecting rods oppositely arranged on both sides of the transition plate. The transition plate is embedded in the beam body. One end of the connecting rod is fixedly connected to the wide surface of the transition plate. The connecting rod located above the transition plate extends out of the beam body, and the connecting rod located below the transition plate is embedded in the beam body.

[0010] By adopting the above technical solution, the transition plate embedded in the beam body can effectively improve the structural stability between the connecting member and the beam body, ensuring the connection reliability between the precast floor slab and the beam body; the setting of the connecting rod can improve the connection strength between the connecting member and the beam body, as well as between the connecting member and the precast floor slab, thereby further improving the connection reliability between the precast floor slab and the beam body.

[0011] Preferably, multiple groups of the connecting members are provided.

[0012] By adopting the above technical solution, providing multiple groups of connecting members can significantly improve the connection strength and stability between the precast concrete simply supported composite beam and the precast floor slab, effectively disperse the load, and enhance the integrity and safety of the structure.

[0013] Preferably, a reinforcing plate is fixedly connected to one side of each end plate close to the beam body, and the reinforcing plate is embedded in the beam body.

[0014] By adopting the above technical solution, the setting of the reinforcing plate improves the structural strength at the connection between the end plate and the beam body, thereby enhancing the overall stability and load-bearing capacity of the precast concrete simply supported composite beam; in addition, the reinforcing plate is embedded in the beam body, effectively improving the stability at the connection between the end plate and the beam body.

[0015] Preferably, a connecting plate is fixedly connected to one side of each end plate facing away from the beam body.

[0016] By adopting the above technical solution, the setting of the connecting plate enhances the connection stability between the end plate and the support for bearing the beam body, further improving the overall structural strength and reliability of the precast concrete simply supported composite beam.

[0017] Preferably, reinforcement members are respectively arranged on both sides of the reinforcing plate, and one end of the reinforcement member is fixedly connected to the reinforcing plate.

[0018] By adopting the above technical solution, the reinforcement members arranged on both sides of the reinforcing plate can further enhance the connection strength between the end plate and the beam body, thereby improving the overall structural stability of the precast concrete simply supported composite beam.

[0019] Preferably, a stabilizing member is further arranged inside the beam body, and the stabilizing member is fixed to the waist of the stirrup.

[0020] By adopting the above technical solution, the stabilizing member is fixed to the waist of the stirrup. On the one hand, it can effectively improve the stability of the internal structure of the beam body and further enhance the overall bearing capacity of the precast concrete simply supported composite beam; on the other hand, the setting of the stabilizing member can effectively reduce the displacement or deformation of the stirrup when subjected to external loads, thereby ensuring the structural stability and safety of the beam body.

[0021] Preferably, a reinforcement member is embedded in the beam body, and the reinforcement member is located on a side of the stabilizing member away from the connecting member.

[0022] By adopting the above technical solution and setting the reinforcement, the overall stability and bearing capacity of the internal structure of the beam body are improved, and the structural strength and reliability of the precast concrete simply supported composite beam are further enhanced.

[0023] Preferably, the reinforcement is steel section.

[0024] By adopting the above technical solution, the use of steel sections as reinforcements can improve the overall stability and load-bearing capacity of the internal structure of the beam body, thereby enhancing the structural strength and service life of the precast concrete simply supported composite beam.

[0025] Preferably, the reinforcement member is a hollow tube.

[0026] By adopting the above technical solution, the reinforcement is a hollow tube, which effectively improves the stability of the internal structure of the beam body. In addition, the hollow reinforcement can also reduce the use of concrete, thereby reducing production costs, while reducing the weight of the beam body and facilitating transportation.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The stirrups embedded in the top of the beam body not only enhance the overall rigidity of the beam body, but also make the upper surface of the beam body smoother, that is, the prefabricated floor slab can be quickly and stably placed on the beam body; in addition, the setting of the connector can position the prefabricated floor slab, thereby realizing rapid construction, that is, improving construction efficiency;

[0029] 2. The transition plate embedded in the beam body can effectively improve the structural stability between the connecting piece and the beam body, and ensure the connection reliability between the prefabricated floor slab and the beam body; and the setting of the connecting rod can improve the connection strength between the connecting piece and the beam body, and between the connecting piece and the prefabricated floor slab, thereby further improving the connection reliability between the prefabricated floor slab and the beam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a precast concrete simply supported composite beam of the present application.

[0031] Figure 2 is Figure 1 the A-A cross-sectional view in [the figure] for embodying Embodiment 1 of the present application.

[0032] Figure 3 is Figure 1 the A-A cross-sectional view in [the figure] for embodying Embodiment 2 of the present application.

[0033] Figure 4 is Figure 1 the A-A cross-sectional view in [the figure] for embodying Embodiment 3 of the present application.

[0034] Explanation of reference numerals:

[0035] 1. Beam body; 2. Head plate; 21. Connecting plate; 211. Connecting hole; 22. Reinforcing plate; 3. Reinforcement member; 4. Longitudinal reinforcing rib; 5. Stirrup; 6. Connecting member; 61. Transition plate; 62. Connecting rod; 7. Stabilizing member; 71. Waist reinforcement; 72. Tension reinforcement; 8. Reinforcing member. Detailed implementation manners

[0036] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings.

[0037] Embodiment 1

[0038] Embodiment 1 of the present application discloses a precast concrete simply supported composite beam. Referring to Figure 1 , the precast concrete simply supported composite beam includes a beam body 1, and the beam body 1 is preferably cast with ultra-high performance concrete (UHPC). Head plates 2 are respectively embedded at both ends of the beam body 1, and the head plates 2 can protect the concrete at the ends of the beam body 1 and improve the waterproof performance.

[0039] Referring to Figure 1 , on the side of each head plate 2 facing away from the beam body 1, a connecting plate 21 is fixedly welded; when the beam body 1 is placed on a support for assembling the beam body 1, the connecting plate 21 can be snapped into a groove pre-opened on the support, thereby completing the rapid assembly of the beam body 1. A connecting hole 211 is also penetrated through the wide surface of the connecting plate 21 to facilitate construction workers to lock and fix the beam body 1 to the support by passing anchor bolt fasteners through the connecting hole 211.

[0040] Referring to Figure 1, on one side of each end head plate 2 close to the beam body 1, a reinforcing plate 22 is fixed by welding. The reinforcing plate 22 is embedded in the beam body 1 to improve the connection strength between the end head plate 2 and the beam body 1. The reinforcing plate 22 is preferably a T-shaped steel. The end of the reinforcing plate 22 is welded and fixed to the end head plate 2. Reinforcing members 3 are respectively arranged on both sides of the web of the reinforcing plate 22. The reinforcing members 3 are preferably stud bolts, and the number of reinforcing members 3 on each side of the web of the reinforcing plate 22 is preferably two. One end of each reinforcing member 3 is fixed to the web of the reinforcing plate 22 by welding.

[0041] Refer to Figure 1 , a number of longitudinal reinforcing ribs 4 are embedded in the beam body 1. The longitudinal reinforcing ribs 4 are arranged along the length direction of the beam body 1. The longitudinal reinforcing ribs 4 are divided into two groups, and each group is composed of a number of longitudinal reinforcing ribs 4. One group is located at the upper part of the beam body 1, and the other group is located at the lower part of the beam body 1. In order to improve the stability of the overall structure, the longitudinal reinforcing ribs 4 located at the upper part are fixed to the upper surface of the flange of the reinforcing plate 22 by welding.

[0042] Refer to Figure 1 , a number of stirrups 5 are also embedded in the beam body 1. The stirrups 5 surround the outside of the two groups of longitudinal reinforcing ribs 4, and the stirrups 5 and the longitudinal reinforcing ribs 4 are preferably fixed by double-sided welding. In order to strengthen the overall strength and improve the load-bearing capacity of the beam body 1, the stirrups 5 are arranged in an array along the length direction of the beam body 1.

[0043] Refer to Figure 1 , in order to facilitate the construction workers to directly install the precast floor slab onto the beam body 1, thereby improving the construction efficiency, the top of the stirrup 5 is embedded in the beam body 1.

[0044] Refer to Figure 1 , in order to position the precast floor slab to further improve the construction efficiency, a connecting member 6 is also embedded in the beam body 1. The top of the connecting member 6 extends out of the upper surface of the beam body 1. The connecting member 6 is passed through the pre-opened hole in the precast floor slab, thereby realizing the rapid positioning and assembly of the precast floor slab.

[0045] Refer to Figure 1 , a plurality of groups of connecting members 6 are arranged along the length direction of the beam body 1, thereby further improving the connection reliability between the beam body 1 and the precast floor slab. The connecting member 6 includes a transition plate 61 and connecting rods 62 oppositely arranged on both sides of the transition plate 61. The transition plate 61 is embedded in the beam body 1. One end of each of the two connecting rods 62 is fixed to the wide surface of the transition plate 61 by welding. The connecting rod 62 located below the transition plate 61 is embedded in the beam body 1 to improve the connection strength between the connecting member 6 and the beam body 1; while the connecting rod 62 located above the transition plate 61 extends out of the beam body 1 to facilitate the connection between the connecting member 6 and the precast floor slab.

[0046] Reference Figure 1 The connecting rod 62 in the embodiment of the present application is preferably a bolt, and the connecting rod 62 located at the lower side of the two transition plates 61 at the end of the beam body 1 is fixed to the wing plate of the reinforcement plate 22 by welding.

[0047] Reference Figure 2 , a stabilizing member 7 is also provided inside the beam body 1, and the stabilizing member 7 is located at the waist of the stirrup 5. The stabilizing member 7 includes a waist reinforcement 71 and a tensioning member 72. Two waist reinforcements 71 are arranged opposite to each other, and the two waist reinforcements 71 are both located on the inner side of the stirrup 5 and arranged along the length direction of the beam body 1. The two waist reinforcements 71 in the embodiment of the present application are fixed to the stirrup 5 by welding. There are multiple tensioning members 72, and the tensioning members 72 are arranged in an array along the length direction of the beam body 1. Both ends of each tensioning member 72 are bent around the waist reinforcement 71, and are tied and fixed to the waist reinforcement 71 by steel wire. The tensioning member 72 can provide relative tension to the two waist reinforcements 71, thereby improving the stiffness of the stirrup 5 welded to the waist reinforcement 71, thereby improving the overall durability of the beam body 1.

[0048] Reference Figure 1 and Figure 2 A reinforcement member 8 is also embedded in the beam body 1, and the reinforcement member 8 is located on the side of the stabilizing member 7 away from the connecting member 6. The reinforcement member 8 in the first embodiment of the present application is made of profiled steel, and the profiled steel is T-shaped steel. The bottom of the reinforcement member 8 is fixed to the longitudinal reinforcement rib 4 located at the lower side by welding, and the two ends of the reinforcement member 8 are respectively fixed to the head plates 2 corresponding to the two ends of the beam body 1 by welding.

[0049] The implementation principle of a precast concrete simply supported composite beam in an embodiment of the present application is as follows: the top of the stirrups 5 inside the beam body 1 is pre-buried in the beam body 1, which makes it convenient for construction workers to directly place the precast floor slabs on the beam body 1; by arranging a number of connecting parts 6 on the beam body 1, the precast floor slabs can be quickly positioned, so that they can be assembled on the beam body 1 more efficiently; at the same time, after the connecting parts 6 complete the positioning of the precast floor slabs, the construction workers can also pour concrete, so as to further strengthen the connection strength between the beam body 1 and the precast floor slabs, and improve the stability of the overall building.

[0050] Embodiment 2

[0051] Reference Figure 1 and Figure 3 The difference between Example 2 of the present application and Example 1 is that the steel section used is H-shaped steel, the bottom of the reinforcement member 8 is fixed to the longitudinal reinforcement rib 4 located on the lower side by welding, and the two ends of the reinforcement member 8 are respectively fixed to the head plates 2 corresponding to the two ends of the beam body 1 by welding.

[0052] Embodiment 3

[0053] Reference Figure 1and Figure 4 , the difference between the third embodiment and the first embodiment of this application is that: the reinforcing member 8 is a hollow tube, and preferably a hollow tube with a rectangular cross-section, which can reduce the amount of concrete used in the beam body 1, thereby reducing costs. The bottom of the reinforcing member 8 is fixed to the longitudinal reinforcing rib 4 located on the lower side by welding, and both ends of the reinforcing member 8 are respectively fixed to the corresponding end plates 2 at both ends of the beam body 1 by welding.

[0054] The above are all preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A precast concrete simply supported composite beam, comprising a beam body (1), wherein end plates (2) are respectively embedded at both ends of the beam body (1); a plurality of longitudinal reinforcing ribs (4) are embedded inside the beam body (1), and the longitudinal reinforcing ribs (4) are arranged along the length direction of the beam body (1); a plurality of stirrups (5) are also embedded inside the beam body (1), and the stirrups (5) are arranged in an array along the length direction of the beam body (1); the characteristics are: The top end of the stirrup (5) is located inside the beam body (1); a connecting member (6) for connecting with a precast floor slab is embedded in the beam body (1), and the top of the connecting member (6) extends out of the upper surface of the beam body (1).

2. The precast concrete simply supported composite beam according to claim 1, characterized in that: The connecting member (6) includes a transition plate (61) and connecting rods (62) oppositely arranged on both sides of the transition plate (61). The transition plate (61) is embedded in the beam body (1), one end of the connecting rod (62) is fixedly connected to the wide surface of the transition plate (61), the connecting rod (62) located above the transition plate (61) extends out of the beam body (1), and the connecting rod (62) located below the transition plate (61) is embedded in the beam body (1).

3. A precast concrete simply supported composite beam according to claim 2, characterized in that: A plurality of groups of the connecting members (6) are provided.

4. A precast concrete simply supported composite beam according to claim 1, characterized in that: A reinforcing plate (22) is fixedly connected to one side of each end plate (2) close to the beam body (1), and the reinforcing plate (22) is embedded in the beam body (1).

5. A precast concrete simply supported composite beam according to claim 1 or 4, characterized in that: A connecting plate (21) is fixedly connected to one side of each end plate (2) facing away from the beam body (1).

6. A precast concrete simply supported composite beam according to claim 4, characterized in that: Reinforcing members (3) are respectively arranged on both sides of the reinforcing plate (22), and one end of the reinforcing member (3) is fixedly connected to the reinforcing plate (22).

7. A precast concrete simply supported composite beam according to claim 1, characterized in that: A stabilizing member (7) is further arranged inside the beam body (1), and the stabilizing member (7) is fixed to the waist of the stirrup (5).

8. A precast concrete simply supported composite beam according to claim 7, characterized in that: A reinforcing member (8) is further embedded inside the beam body (1), and the reinforcing member (8) is located on the side of the stabilizing member (7) away from the connecting member (6).

9. A precast concrete simply supported composite beam according to claim 8, characterized in that: The reinforcing member (8) is a profiled steel.

10. A precast concrete simply supported composite beam according to claim 8, characterized in that: The reinforcing member (8) is a hollow pipe.

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