Fabricated building beam column connecting structure

Abstract

The utility model discloses an assembly type building beam column connecting structure, relates to the field of assembly type building structures, and provides the following scheme aiming at the problem that in the prior art, it is difficult to ensure that steel bar outlet parts of all lower-layer prefabricated columns correspond to preformed holes of upper-layer prefabricated columns one to one. Anchor bolts and angle steel are arranged on one side of the upper end of the prefabricated column, and the anchor bolts and the angle steel are mutually connected and fixed; through holes are formed in the two sides of the superposed beam; anchor bolts and angle steel are reserved on the prefabricated part of the composite beam, the cross-shaped steel is connected to the upper end of the prefabricated column, the lower end of the cross-shaped steel is connected with a steel flat plate, and high-strength bolts are connected in the steel flat plate. And the prefabricated columns are fixed by adopting high-strength bolts through the pre-buried cross-shaped steel and the superposed beams on the cross-shaped steel, so that the construction process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building structures, and in particular to a prefabricated building beam-column connection structure. Background Technology

[0002] In the field of prefabricated building structures, the connection nodes of prefabricated components are a critical link concerning the safety and stability of the entire structure. Prefabricated column connection nodes in prefabricated structures typically employ a sleeve grouting method, which requires high verticality and precision of the exposed reinforcing steel sections of the prefabricated column.

[0003] However, in actual construction, due to the need for hoisting the upper precast columns, if there are many longitudinal steel bars in the lower columns, it is difficult to ensure that all the steel bar protrusions of the lower precast columns and the reserved holes of the upper precast columns can correspond one by one. This undoubtedly increases the difficulty and complexity of construction. Utility Model Content

[0004] This utility model proposes a prefabricated building beam-column connection structure, which solves the existing problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated building beam-column connection structure, comprising a lower prefabricated column, a composite beam and an upper prefabricated column, wherein the lower prefabricated column and the composite beam are connected, and the lower prefabricated column is provided with anchor bolts and angle steel, and the prefabricated part of the composite beam is also provided with anchor bolts, and the prefabricated part of the composite beam is placed on the angle steel for fixation;

[0006] The lower and upper precast columns are connected, and both the lower and upper precast columns have embedded cross-shaped steel inside. A steel plate is added to the end of the cross-shaped steel. The lower and upper precast columns are fixed with high-strength bolts through the steel plate.

[0007] Preferably, a number of lower column reinforcing bars are evenly distributed around the outer perimeter of the lower precast column, and the lower column reinforcing bars are connected by cast-in-place reinforced concrete or steel-concrete composite.

[0008] Preferably, the composite beam has bottom reinforcement bars at the bottom and top reinforcement bars at the top, with the bottom reinforcement bars directly welded to the cross-shaped steel to form a welded part.

[0009] Preferably, the cross-shaped steel has pre-drilled holes at both the upper and lower ends, with the beam reinforcement passing through the upper pre-drilled hole and the anchor bolt passing through the lower pre-drilled hole.

[0010] Preferably, a number of upper column reinforcing bars are evenly distributed on the outer periphery of the inner part of the upper precast column, and the upper column reinforcing bars are connected by cast-in-place reinforced concrete or steel-concrete composite.

[0011] Preferably, the upper column reinforcement area outside the high-strength bolt is welded or lapped.

[0012] The beneficial effects of this utility model are as follows: The prefabricated building beam-column connection structure uses pre-embedded anchor bolts and angle steel in the lower prefabricated columns, pre-embedded anchor bolts in the prefabricated cross-shaped steel, and the prefabricated composite beam is fixed on the angle steel. The upper prefabricated columns are fixed with high-strength bolts through the pre-embedded cross-shaped steel and the steel plate on top. This simplifies the construction process, reduces construction difficulty, and improves construction efficiency. The column reinforcement connected on one side of the upper and lower prefabricated columns can be connected using conventional cast-in-place reinforced concrete or steel-concrete composite, further enhancing the integrity and stability of the beam-column joint. The direct welding of the protruding reinforcement of the prefabricated composite beam to the cross-shaped steel ensures the quality of the connection joint, enhances the safety and stability of the entire prefabricated building structure, avoids overlapping at locations with large bending moments, facilitates the hoisting, splicing, and construction of prefabricated components, and further improves construction efficiency and quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This utility model Figure 1 A schematic diagram of the structure of AA.

[0015] Figure 3 This utility model Figure 1 A schematic diagram of the structure of BB.

[0016] Figure 4 This utility model Figure 1 A schematic diagram of the structure of CC.

[0017] Figure 5 This is a schematic diagram of a partial connection structure of the present invention.

[0018] The following labels are used in the diagram: 1. Lower precast column; 101. Anchor bolt; 102. Angle steel; 103. Lower column reinforcement; 2. Composite beam; 201. Beam bottom reinforcement; 202. Welded section; 203. Beam top reinforcement; 3. Upper precast column; 301. Upper column reinforcement; 4. Cross-shaped steel; 401. Steel section reserved hole; 5. Steel plate; 6. High-strength bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-5A prefabricated building beam-column connection structure includes a lower prefabricated column 1, a composite beam 2, and an upper prefabricated column 3. The lower prefabricated column 1 and the composite beam 2 are connected, and the lower prefabricated column 1 is pre-embedded with anchor bolts 101 and angle steel 102. The prefabricated part of the composite beam 2 is also pre-embedded with anchor bolts 101. The prefabricated part of the composite beam 2 is placed on the angle steel 102 for fixation. The lower prefabricated column 1 and the upper prefabricated column 3 are connected, and both the lower prefabricated column 1 and the upper prefabricated column 3 are pre-embedded with cross-shaped steel 4. A steel plate 5 is added to the end of the cross-shaped steel 4. The lower prefabricated column 1 and the upper prefabricated column 3 are fixed by high-strength bolts 6 through the steel plate 5.

[0021] Reference Figure 1 , Figure 2 The lower precast column 1 has several lower column reinforcement bars 103 evenly distributed around its outer perimeter, and the lower column reinforcement bars 103 are connected by cast-in-place reinforced concrete or steel-concrete composite. The bottom of the composite beam 2 is provided with bottom reinforcement bars 201, and the top of the composite beam 2 is provided with top reinforcement bars 203. The bottom reinforcement bars 201 are directly welded to the cross-shaped steel 4 to form a welded part 202. The cross-shaped steel 4 has steel reserved holes 401 at both ends. The top reinforcement bars 203 penetrate through the upper steel reserved hole 401, and the lower steel reserved hole 401... Anchor bolts 101 penetrate the hole 401. Several upper column steel bars 301 are evenly distributed on the outer periphery of the upper precast column 3. The upper column steel bars 301 are connected by cast-in-place reinforced concrete or steel-concrete composite. The lower precast column 1, composite beam 2 and cross-shaped steel 4 are dry-connected by components such as anchor bolts 101, angle steel 102 and high-strength bolts 6. This makes the beam-column connection structure of the prefabricated building simpler and faster to assemble, while ensuring the strength and stability of the connection parts.

[0022] Working principle: Anchor bolts 101 and angle steel 102 are reserved in the lower precast column 1. The precast part of the composite beam 2 is also connected with anchor bolts 101. During construction, angle steel 102 is placed on both sides of the composite beam 2 and fixed with anchor bolts 101. The upper precast column 3 is connected to the lower precast column 1. Cross-shaped steel 4 is connected between the upper precast column 3 and the lower precast column 1. Steel plate 5 is added to the end of the cross-shaped steel 4. The lower precast column 1 and the upper precast column 3 are fixed with high-strength bolts 6 through the steel plate 5. In addition, several lower column steel bars 103 are evenly distributed on the outer periphery of the lower precast column 1. The lower column steel bars 103 can be connected by conventional cast-in-place reinforced concrete or steel-concrete composite, which further enhances the integrity and stability of the beam-column joint. The cross-shaped steel 4 is reserved with steel reserved holes 401. At the same time, the steel bar part of the composite beam 2 can be directly welded to the cross-shaped steel 4, avoiding the lap joint at the position of large bending moment, thereby improving the stress performance of the connection joint.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A prefabricated building beam-column connection structure, comprising a lower prefabricated column (1), a composite beam (2), and an upper prefabricated column (3), characterized in that: The lower precast column (1) and the composite beam (2) are connected, and the lower precast column (1) is reserved with anchor bolts (101) and angle steel (102). The precast part of the composite beam (2) is also reserved with anchor bolts (101). The precast part of the composite beam (2) is placed on the angle steel (102) for fixing. The lower precast column (1) and the upper precast column (3) are connected, and both the lower precast column (1) and the upper precast column (3) have pre-embedded cross-shaped steel (4). A steel plate (5) is added to the end of the cross-shaped steel (4). The lower precast column (1) and the upper precast column (3) are fixed by high-strength bolts (6) through the steel plate (5).

2. The prefabricated building beam-column connection structure according to claim 1, characterized in that, The lower precast column (1) has a number of lower column steel bars (103) evenly distributed around its outer perimeter, and the lower column steel bars (103) are connected by cast-in-place reinforced concrete or steel-concrete composite.

3. The prefabricated building beam-column connection structure according to claim 1, characterized in that, The bottom of the composite beam (2) is provided with bottom reinforcement (201), and the top reinforcement (203) is provided on the top of the composite beam (2). The bottom reinforcement (201) is directly welded to the cross-shaped steel (4) to form a welded part (202).

4. The prefabricated building beam-column connection structure according to claim 3, characterized in that, The cross-shaped steel (4) has steel reserved holes (401) at both the upper and lower ends. The upper steel reserved hole (401) is penetrated by the beam reinforcement (203), and the lower steel reserved hole (401) is penetrated by the anchor bolt (101).

5. The prefabricated building beam-column connection structure according to claim 1, characterized in that, The upper precast column (3) has several upper column steel bars (301) evenly distributed on its inner outer perimeter, and the upper column steel bars (301) are connected by cast-in-place reinforced concrete or steel-concrete composite.

6. The prefabricated building beam-column connection structure according to claim 1, characterized in that, The upper column reinforcement (301) area outside the high-strength bolt (6) is welded or lapped.

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