Connecting joint structure of newly added shear wall and existing frame beam

Abstract

The utility model discloses a newly-added shear wall and existing frame beam connecting node structure which comprises a frame beam, the bottom of the frame beam is provided with concave flat steel, the outer walls of the three sides of the flat steel are respectively provided with three anchor bolts, the flat steel is connected with channel steel through the anchor bolts at the bottom, vertical ribs are welded to the outer walls of the channel steel, and the vertical ribs are connected with the flat steel. Horizontal bars and tie bars are welded to the outer walls of the vertical bars respectively, shear walls are poured outside the vertical bars, the horizontal bars and the tie bars, flat steel and channel steel are adopted to reinforce an existing frame beam, and meanwhile fixing points are provided for a steel bar structure in the newly-added shear walls. The newly-added shear wall and the existing frame beam are tightly connected into a whole, the structural stability is enhanced, meanwhile, the overall structure is easy to construct and high in speed, connecting points are firm and reliable, the working requirements of people are met, and the connecting structure is worthy of application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical direction of construction engineering, and specifically relates to a connection node structure of a newly added shear wall and an existing frame beam. Background Art

[0002] With the rapid development of social modernization, many old house structures are affected by various factors such as the natural environment and the use environment, showing defects such as low lateral stiffness and insufficient seismic resistance to varying degrees. It is necessary to add a certain number of shear walls to improve the lateral stiffness and seismic resistance of the structure. The conventional method of connecting the newly added wall structure steel bars with the frame beams is to use embedded steel bars, which will cause great damage to the existing frame beam interface. Utility Model Content

[0003] The purpose of the utility model is to add a shear wall and an existing frame beam connection node structure to the existing device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a newly added shear wall and existing frame beam connection node structure, including a frame beam, a concave flat steel is arranged at the bottom of the frame beam, three side outer walls of the flat steel are respectively provided with three anchor bolts, the flat steel is connected to the channel steel through the anchor bolts at the bottom, the outer wall of the channel steel is welded with vertical reinforcement, the outer wall of the vertical reinforcement is respectively welded with horizontal reinforcement and tie reinforcement, and the shear wall is cast outside the vertical reinforcement, horizontal reinforcement and tie reinforcement.

[0005] Preferably, the frame beam is a reinforced concrete frame beam with a concrete strength grade of C35 and a size of 300×450 mm.

[0006] Preferably, the shear wall is a reinforced concrete wall with a concrete strength grade of C40 and a width of 240 mm.

[0007] Preferably, the flat steel has a width of 100 mm and a thickness of 10 mm, and is connected to the frame beam by adhesive, the contact height between the two sides of the flat steel and the two sides of the bottom of the frame beam is 100 mm, and the flat steel is arranged in an array with a spacing of 500 mm along the length of the frame beam.

[0008] Preferably, the channel steel is of model 20#, the waist and back of the channel steel are welded to the flat steel, and the channel steel is arranged along the length direction of the frame beam.

[0009] Preferably, the anchor bolt model is D16 expansion type, and the two sides of the flat steel are connected to the two sides of the bottom of the frame beam through anchor bolts, and the flat steel and the bottom and the top of the channel steel are connected to the bottom of the frame beam through anchor bolts.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] (1) The utility model uses flat steel and channel steel to reinforce the existing frame beams, and at the same time provides fixing points for the steel structure in the newly added shear wall, so that the newly added shear wall and the existing frame beam are tightly connected to form a whole, thereby enhancing the stability of the structure. At the same time, the overall structure is simple to construct with high speed, and the connection points are firm and reliable, which meets people's work needs and is worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the connection node structure of the newly added shear wall and the existing frame beam of the utility model.

[0014] In the figure: 1. Frame beam; 2. Flat steel; 3. Anchor bolt; 4. Channel steel; 5. Vertical reinforcement; 6. Horizontal reinforcement; 7. Tie reinforcement; 8. Shear wall. DETAILED DESCRIPTION

[0015] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1 The utility model provides a technical solution: a newly added shear wall and an existing frame beam connection node structure, including a frame beam 1, a concave flat steel 2 is arranged at the bottom of the frame beam 1, three side outer walls of the flat steel 2 are respectively provided with three anchor bolts 3, the flat steel 2 is connected to a channel steel 4 through the bottom anchor bolts 3, the outer wall of the channel steel 4 is welded with a vertical rib 5, the outer wall of the vertical rib 5 is respectively welded with a horizontal rib 6 and a tie rib 7, and a shear wall 8 is cast outside the vertical rib 5, the horizontal rib 6 and the tie rib 7.

[0017] Furthermore, the frame beam 1 is a reinforced concrete frame beam with a concrete strength grade of C35 and a size of 300×450 mm.

[0018] Furthermore, the shear wall 8 is a reinforced concrete wall with a concrete strength grade of C40 and a width of 240 mm, which is used to enhance the lateral stiffness and earthquake resistance of the structure.

[0019] Furthermore, the width of the flat steel 2 is 100 mm and the thickness is 10 mm, and the flat steel 2 is connected to the frame beam 1 by adhesive, the contact height between the two sides of the flat steel 2 and the two sides of the bottom of the frame beam 1 is 100 mm, and the flat steel 2 is arranged in an array with a spacing of 500 mm along the length of the frame beam 1, which can be used to reinforce the existing frame beam 1 and provide a fixing point for the channel steel 4.

[0020] Furthermore, the model of the channel steel 4 is 20#, the waist and back of the channel steel 4 are welded to the flat steel 2, and the channel steel 4 is arranged along the length direction of the frame beam 1 to provide a connection point for the vertical reinforcement 5 of the newly added shear wall 8.

[0021] Furthermore, the model of the anchor bolt 3 is a D16 expanded hole type, and the two sides of the flat steel 2 are connected to the two sides of the bottom of the frame beam 1 through the anchor bolt 3, and the bottom of the flat steel 2 and the top of the channel steel 4 are connected to the bottom of the frame beam 1 through the anchor bolt 3, which facilitates the fixation of the flat steel 2 and the channel steel 4.

[0022] When in use, first use adhesive to stick the flat steel 2 along the length direction of the frame beam 1 at a spacing of 500mm, and tighten the two sides of the flat steel 2 through the anchor bolts 3, which can then be used to reinforce the existing frame beam 1 and provide a fixing point for the subsequent installation of the channel steel 4. Then, the channel steel 4 is welded to the bottom of the flat steel 2, and the channel steel 4 is distributed along the length direction of the frame beam 1. Then, the flat steel 2, the channel steel 4 and the frame beam 1 are fixed through the anchor bolts 3, which facilitates the provision of connection points for the vertical reinforcement 5 in the newly added shear wall 8. Then, the vertical reinforcement 5, the horizontal reinforcement 6 and the tie reinforcement 7 are bundled, and the vertical reinforcement 5 is welded to the bottom of the channel steel 4. Finally, the formwork is supported and concrete is poured to complete a series of work, thereby improving the construction efficiency and making the construction simple. At the same time, the connection points are firm and reliable after the construction is completed.

[0023] Next, the flat steel is fixed on both sides with anchor bolts, wherein the anchor bolts are D16 expanded hole anchor bolts, and the anchor bolts on both sides of the flat steel are fixed to the top of the flat steel.

[0024] The next step is to install the channel steel, which is 20# channel steel, fixed to the lower side of the flat steel. The back of the channel steel is welded to the flat steel and set along the length of the beam to provide a connection point for the newly added vertical reinforcement of the shear wall. Then, D16 anchor bolts are used to fix the middle part between the channel steel and the flat steel at the bottom of the beam.

[0025] The next step is to tie the structural steel bars. The structural steel bars are newly added shear wall structural reinforcements, including vertical bars, horizontal bars and tie bars. The vertical bars are C14@200, the horizontal bars are C14@200, and the tie bars are A8@600. Tie the vertical bars according to the design position of the drawings, weld the top of the vertical bars to the channel steel position, and fix the vertical bars. Tie the horizontal bars and tie bars according to the design requirements.

[0026] The next step is to install the new shear wall formwork and pour concrete, with the concrete strength grade being C35.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A connection node structure of a newly added shear wall and an existing frame beam, comprising a frame beam (1), characterized in that: A concave-shaped flat steel (2) is arranged at the bottom of the frame beam (1), and three anchor bolts (3) are respectively arranged on the three side outer walls of the flat steel (2). The flat steel (2) is connected to a channel steel (4) through the anchor bolts (3) at the bottom, and the outer wall of the channel steel (4) is welded with a vertical rib (5), and the outer wall of the vertical rib (5) is respectively welded with a horizontal rib (6) and a tie rib (7), and a shear wall (8) is cast outside the vertical rib (5), the horizontal rib (6) and the tie rib (7).

2. A connection node structure of a newly added shear wall and an existing frame beam according to claim 1, characterized in that: The frame beam (1) is a reinforced concrete frame beam with a concrete strength grade of C35 and a size of 300×450 mm.

3. According to claim 1, a connection node structure of a newly added shear wall and an existing frame beam is characterized in that: The shear wall (8) is a reinforced concrete wall with a concrete strength grade of C40 and a width of 240 mm.

4. A connection node structure of a newly added shear wall and an existing frame beam according to claim 1, characterized in that: The flat steel (2) has a width of 100 mm and a thickness of 10 mm, and the flat steel (2) is connected to the frame beam (1) by means of adhesive, the contact height between the two sides of the flat steel (2) and the two sides of the bottom of the frame beam (1) is 100 mm, and the flat steel (2) is arranged in an array with a spacing of 500 mm along the length of the frame beam (1).

5. The connection node structure of a newly added shear wall and an existing frame beam according to claim 1 is characterized in that: The model of the channel steel (4) is 20#, the waist and back of the channel steel (4) are welded to the flat steel (2), and the channel steel (4) is arranged along the length direction of the frame beam (1) in a continuous manner.

6. The connection node structure of a newly added shear wall and an existing frame beam according to claim 1 is characterized in that: The anchor bolt (3) is of D16 expansion type, and the two sides of the flat steel (2) are connected to the two sides of the bottom of the frame beam (1) through the anchor bolt (3), and the bottom of the flat steel (2) and the top of the channel steel (4) are connected to the bottom of the frame beam (1) through the anchor bolt (3).

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