Split type prefabricated superposed frame beam

Abstract

The utility model provides a split type prefabricated composite frame beam which comprises two split type frame beam units which are symmetrically arranged and a connecting mechanism which is arranged between the two split type frame beam units and used for connecting the two split type frame beam units. Each split frame beam unit comprises a concrete structure, a plurality of waist bars located above the concrete structure and a plurality of bottom outwards-extending longitudinal steel bars located below the concrete structure are arranged in the concrete structure, and the waist bars and the bottom outwards-extending longitudinal steel bars are sleeved with stirrups extending to the top of the concrete structure. The composite frame beam is divided into the two split frame beam units, so that when a single split frame beam unit is hoisted, only steel bar collision at one end of a beam column joint needs to be controlled, the other end of the beam column joint can be freely adjusted, mounting and positioning construction of the composite frame beam is simplified, meanwhile, butt joint of the two split frame beam units is conducted through a steel structure, and the construction efficiency is improved. Therefore, the steel plate has better ductility and rigidity characteristics.

Description

Technical Field

[0001] The utility model relates to the field of assembled frame beams, in particular to a split prefabricated composite frame beam. Background Art

[0002] The composite frame beam is a beam structure that uses a two-time concrete pouring process. The first pouring is carried out at the prefabrication site to make a prefabricated beam; after the prefabricated beam is hoisted and positioned at the construction site, the second pouring is carried out to connect the upper concrete and the prefabricated beam into a whole. In this design, the longitudinal steel bars at the bottom of both sides of the prefabricated composite frame beam must follow the specifications and extend to the beam-column node for anchoring. However, since the protruding steel bars at the ends of the beams and columns are usually large in diameter and dense in number, these longitudinal steel bars are prone to collision during the hoisting process, which not only affects the accuracy of the hoisting operation, but also reduces the construction efficiency. Therefore, a split prefabricated composite frame beam is proposed to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a split prefabricated composite frame beam to solve the problem that the protruding steel bars at the beam ends and column ends are usually large in diameter and dense in number, which makes these longitudinal steel bars prone to collision with each other during the lifting process, which not only affects the accuracy of the lifting operation, but also reduces the construction efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a split prefabricated composite frame beam, comprising two symmetrically arranged split frame beam units, and a connecting mechanism arranged between the two split frame beam units for connecting each other;

[0005] The split frame beam unit includes a concrete structure, in which a plurality of waist bars located above the concrete structure and a plurality of bottom protruding longitudinal steel bars located below the concrete structure are respectively arranged, and the waist bars and the bottom protruding longitudinal steel bars are externally sheathed with stirrups extending to the top of the concrete structure, wherein both ends of the bottom protruding longitudinal steel bars respectively penetrate the concrete structure, and the waist bars penetrate the concrete structure from the butt ends of the two split frame beam units, and the bottom protruding longitudinal steel bars and waist bars passing through the butt ends are used for mutual binding of the two split frame beam units and binding of the stirrups, and a steel structure for butt connection is pre-embedded in the concrete structure, and the other end of the steel structure extends from the butt ends of the two split frame beam units, and a connecting mechanism is used for connecting the steel structures of the two split frame beam units.

[0006] In the preferred embodiment, the steel structure includes a connecting steel plate, one end of which is embedded in the concrete structure, and a plurality of embedded steel plates are provided. The embedded steel plates are provided with through holes for the bottom extending longitudinal steel bars and waist bars to pass through. The other end of the connecting steel plate extends from the butt ends of the two split frame beam units and is connected to a butt steel plate. The butt steel plate and the connecting steel plate form a T-shaped structure.

[0007] In a preferred embodiment, the connection mechanism includes two symmetrically arranged set blocks, a connection block is arranged between the two set blocks, and a T-shaped groove adapted to the butted steel plates is arranged on the set blocks.

[0008] In a preferred embodiment, the set block is fixedly connected to the steel structure by welding.

[0009] In the preferred embodiment, a plurality of butt bolt holes are arranged on the butt steel plate, plug-in bolt holes corresponding to the butt bolt holes are arranged on the set block, fixing bolts are arranged through the butt bolt holes and the plug-in bolt holes, and fixing nuts are arranged on the threads of the protruding ends of the fixing bolts.

[0010] In the preferred embodiment, the connecting block includes a U-shaped connecting seat arranged on one of the set blocks, and a plug-in plate inserted into the U-shaped connecting seat is arranged on the other set block. Sliding grooves are arranged on both side walls of the U-shaped connecting seat, and sliding screws passing through the sliding grooves are arranged on both sides of the plug-in plate, and a locking nut is arranged on the threaded end of the sliding screw.

[0011] In the preferred embodiment, a post-cast concrete structure is provided at the joint of the two split frame beam units.

[0012] The utility model provides a split prefabricated composite frame beam, which divides the composite frame beam into two split frame beam units. When a single split frame beam unit is hoisted, only the steel bar collision at one end of the beam-column node needs to be controlled, and the other end can be adjusted freely, thereby simplifying the installation and positioning construction of the composite frame beam. At the same time, the two split frame beam units are butt-jointed through a steel structure, so that the two split frame beam units have better ductility and stiffness characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 This is a structural diagram of the connection of two split frame beam units of the utility model;

[0015] Figure 2 This is a structural diagram of the split frame beam unit of the utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of a split frame beam unit of the utility model;

[0017] Figure 4It is the structural diagram of the steel structure of the utility model;

[0018] Figure 5 It is an exploded diagram of the connection structure of the split frame beam unit and the connection mechanism of the utility model;

[0019] Figure 6 This is an exploded view of the connection mechanism structure of the utility model;

[0020] Figure 7 This is a top view of the connecting mechanism of the utility model;

[0021] In the figure: split frame beam unit 1; bottom protruding longitudinal steel bar 101; waist reinforcement 102; stirrup 103; steel structure 104; connecting steel plate 1041; embedded steel plate 1042; through hole 1043; docking steel plate 1044; docking bolt hole 1045; concrete structure 105; connecting mechanism 2; set block 201; connecting block 202; U-shaped connecting seat 2021; plug-in plate 2022; sliding groove 2023; sliding screw 2024; locking nut 2025; T-slot 203; plug-in bolt hole 204; fixing bolt 205; fixing nut 206. DETAILED DESCRIPTION

[0022] like Figure 1-7 As shown, a split prefabricated composite frame beam comprises two symmetrically arranged split frame beam units 1, and a connecting mechanism 2 arranged between the two split frame beam units 1 for connecting each other.

[0023] By dividing the prefabricated composite frame beam into two independent split frame beam units 1, it is convenient to hoist them in two times. Therefore, when hoisting the split frame beam unit 1, it is only necessary to control the steel bar collision at the beam-column node at one end, and the other end can be freely adjusted until the split frame beam unit 1 and the beam-column node are installed. Then, the free end is adjusted to the specified position, which simplifies the installation and positioning construction of the composite frame beam. After the two split frame beam units 1 complete the hoisting work in turn, the two split frame beam units 1 are connected as a whole through the connecting mechanism 2.

[0024] The split frame beam unit 1 includes a concrete structure 105, in which a plurality of waist bars 102 located above the concrete structure 105 and a plurality of bottom outrigger longitudinal steel bars 101 located below the concrete structure 105 are respectively provided, and the waist bars 102 and the bottom outrigger longitudinal steel bars 101 are externally sheathed with stirrups 103 extending to the top of the concrete structure 105. The number of waist bars 102, the bottom outrigger longitudinal steel bars 101 and the stirrups 103 is determined according to design requirements. In this embodiment, the number of waist bars 102 is two, and the number of bottom outrigger longitudinal steel bars 101 is four, wherein the number of bottom outrigger longitudinal steel bars 101 is The two ends respectively pass through the concrete structure 105, and the two ends of the bottom protruding longitudinal steel bars 101 are L-shaped. The waist bars 102 pass through the concrete structure 105 from the butt ends of the two split frame beam units 1. The bottom protruding longitudinal steel bars 101 and the waist bars 102 passing through the butt ends are used for the mutual binding of the two split frame beam units 1 and the binding of the stirrups 103. A steel structure 104 for butt connection is pre-embedded in the concrete structure 105, and the other end of the steel structure 104 extends out from the butt ends of the two split frame beam units 1. The connecting mechanism 2 is used to connect the steel structures 104 of the two split frame beam units 1.

[0025] In the preferred embodiment, the steel structure 104 includes a connecting steel plate 1041, one end of which is embedded in the concrete structure 105 and welded with a plurality of embedded steel plates 1042. In this embodiment, the number of embedded steel plates 1042 is four. The four embedded steel plates 1042 can improve the bonding strength between the steel structure 104 and the concrete structure 105. The embedded steel plates 1042 are provided with through holes 1043 for the bottom extending longitudinal steel bars 101 and waist bars 102 to pass through. The connection between the embedded steel plate 1042 and the bottom extending longitudinal steel bars 101 and waist bars 102 can be fixed by welding. The other end of the connecting steel plate 1041 extends from the butt joint end of the two split frame beam units 1 and is welded with a butt joint steel plate 1044. The butt joint steel plate 1044 and the connecting steel plate 1041 form a T-shaped structure. The butt joint steel plate 1044 is used for butt joint of the two split frame beam units 1.

[0026] In the preferred embodiment, the connecting mechanism 2 includes two symmetrically arranged set blocks 201, a connecting block 202 is arranged between the two set blocks 201, the set blocks 201 and the connecting blocks 202 are fixed by welding, and a T-shaped slot 203 adapted to the docking steel plate 1044 is arranged on the set block 201. The connecting mechanism 2 can be mounted on the outside of the two docking steel plates 1044 through the T-shaped slot 203, thereby connecting the two.

[0027] In a preferred embodiment, the set block 201 is fixedly connected to the steel structure 104 by welding or bolts.

[0028] Among them, the specific structure of the bolt connection is: a plurality of docking bolt holes 1045 are arranged on the docking steel plate 1044, and plug-in bolt holes 204 corresponding to the docking bolt holes 1045 are arranged on the set block 201, and fixing bolts 205 are arranged through the docking bolt holes 1045 and the plug-in bolt holes 204, and the threaded ends of the fixing bolts 205 are provided with fixing nuts 206, and the effect of locking the two docking steel plates 1044 is achieved by the fixing bolts 205 and the fixing nuts 206. In this embodiment, six docking bolt holes 1045 are arranged on the docking steel plate 1044, and the number of the plug-in bolt holes 204 on the set block 201 corresponds thereto.

[0029] In the preferred embodiment, the second embodiment of the connecting block 202 is: the connecting block 202 includes a U-shaped connecting seat 2021 welded on one of the set blocks 201, and a plug-in board 2022 is welded on the other set block 201 and plugged into the U-shaped connecting seat 2021. Sliding grooves 2023 are arranged on both side walls of the U-shaped connecting seat 2021. Sliding screws 2024 passing through the sliding grooves 2023 are welded on both sides of the plug-in board 2022. The threaded end of the sliding screw 2024 is provided with a locking nut 2025. When the locking nut 2025 is in a loosened state, the sliding screw 2024 can slide in the sliding groove 2023 to achieve the effect of adjusting the distance between the two set blocks 201. Therefore, during installation, the distance between the two set blocks 201 can be appropriately adjusted according to the distance between the two butting steel plates 1044. After the adjustment, the locking effect can be achieved by the locking nut 2025.

[0030] It should be noted that the specific position of the sliding screw 2024 should avoid the position of the fixing bolt 205 to avoid unnecessary interference.

[0031] In the preferred embodiment, a post-cast concrete structure is provided at the joint of the two split frame beam units 1. After the prefabricated composite frame beam is installed, the post-cast concrete is used to cast the joint of the two split frame beam units 1. The post-cast concrete structure wraps the bottom protruding longitudinal steel bars 101, waist bars 102 and steel structure 104 at the joint. The post-cast concrete structure can completely form the two split frame beam units 1 into a whole.

[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. Split prefabricated composite frame beam, characterized by: It comprises two symmetrically arranged split frame beam units (1), and a connection mechanism (2) arranged between the two split frame beam units (1) for connecting them to each other; The split frame beam unit (1) comprises a concrete structure (105), wherein a plurality of waist bars (102) located above the concrete structure (105) and a plurality of bottom outrigger longitudinal steel bars (101) located below the concrete structure (105) are respectively arranged, and the waist bars (102) and the bottom outrigger longitudinal steel bars (101) are externally sheathed with stirrups (103) extending to the top of the concrete structure (105), wherein both ends of the bottom outrigger longitudinal steel bars (101) respectively penetrate the concrete structure (105), and the waist bars (102) extend from the two split frame members. The butt joint ends of the beam units (1) penetrate the concrete structure (105); the bottom outwardly extending longitudinal steel bars (101) and waist bars (102) extending from the butt joint ends are used for binding the two split frame beam units (1) to each other and for binding the stirrups (103); a steel structure (104) for butt joint is pre-embedded in the concrete structure (105); the other end of the steel structure (104) extends from the butt joint ends of the two split frame beam units (1); and the connection mechanism (2) is used for connecting the steel structures (104) of the two split frame beam units (1).

2. The split prefabricated composite frame beam according to claim 1 is characterized in that: The steel structure (104) comprises a connecting steel plate (1041), one end of which is embedded in the concrete structure (105) and is provided with a plurality of embedded steel plates (1042). The embedded steel plates (1042) are provided with through holes (1043) for the bottom outwardly extending longitudinal steel bars (101) and waist bars (102) to pass through. The other end of the connecting steel plate (1041) extends from the butt joint ends of the two split frame beam units (1) and is connected to a butt joint steel plate (1044). The butt joint steel plate (1044) and the connecting steel plate (1041) form a T-shaped structure.

3. The split prefabricated composite frame beam according to claim 2 is characterized in that: The connection mechanism (2) comprises two symmetrically arranged set blocks (201), a connection block (202) is arranged between the two set blocks (201), and a T-shaped groove (203) adapted to the butt-jointed steel plate (1044) is arranged on the set blocks (201).

4. The split prefabricated composite frame beam according to claim 3 is characterized in that: The set block (201) is fixedly connected to the steel structure (104) by welding.

5. The split prefabricated composite frame beam according to claim 3 is characterized in that: The butt steel plate (1044) is provided with a plurality of butt bolt holes (1045), the set block (201) is provided with plug-in bolt holes (204) corresponding to the butt bolt holes (1045), fixing bolts (205) are provided through the butt bolt holes (1045) and the plug-in bolt holes (204), and fixing nuts (206) are provided on the threaded ends of the fixing bolts (205).

6. The split prefabricated composite frame beam according to claim 4 or 5 is characterized in that: The connecting block (202) comprises a U-shaped connecting seat (2021) arranged on one of the set blocks (201); a plug-in board (2022) plugged into the U-shaped connecting seat (2021) is arranged on the other set block (201); sliding grooves (2023) are arranged on both side walls of the U-shaped connecting seat (2021); sliding screws (2024) penetrating the sliding grooves (223) are arranged on both sides of the plug-in board (2022); and locking nuts (2025) are arranged on the threaded ends of the sliding screws (2024).

7. The split prefabricated composite frame beam according to claim 1 is characterized in that: A post-cast concrete structure is provided at the joint of the two split frame beam units (1).

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