A concrete foundation anchorage node with a dowel

Abstract

The application discloses a kind of concrete foundation anchorage nodes of inserting reinforcing bar, belong to building construction technical field, including concrete foundation, shear wall includes wall body, vertical steel plate is installed in the two sides of combined wall body in parallel, horizontal steel plate is fixedly arranged in the outside of vertical steel plate, horizontal steel plate is made of spring steel material, the outer end of horizontal steel plate extends outward along horizontal direction and exceeds the junction of elastic concrete block and concrete foundation, horizontal steel plate is fixedly connected with elastic concrete block, the distal end of horizontal steel plate is fixedly connected with concrete foundation by anchor bar;Wall body is provided with inserting reinforcing bar, inserting reinforcing bar is arranged in shear wall along vertical direction, the lower end of inserting reinforcing bar is deeply into concrete foundation after passing through elastic concrete block.The device can effectively protect anchorage node main structure from being damaged when natural disaster occurs, avoid the problem that shear wall and concrete foundation interface are opened too much after impact.This node realizes the super-strong connection of strong node weak component.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a dowel-type concrete foundation anchoring node. Background Technology

[0002] In recent years, double-steel-plate concrete composite shear walls have attracted widespread attention as a novel lateral force resisting system. Double-steel-plate concrete composite shear walls typically consist of two steel plates, a core concrete core, studs, and tie rods. Compared to traditional reinforced concrete shear walls, double-steel-plate concrete composite shear walls offer advantages such as high load-bearing capacity, good ductility, and ease of modular construction. However, because existing concrete foundation anchoring joints directly install the steel plates on the upper side of the foundation, the connection performance between the steel plates and the concrete foundation is poor. After the foundation is subjected to impact, excessive opening at the joint interface is a common problem. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a reinforcing bar type concrete foundation anchorage node, which can solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses a reinforced concrete foundation anchoring node, comprising a concrete foundation with a recess on its upper side filled with an elastic concrete block. A shear wall is vertically inserted into the elastic concrete block. The shear wall includes a wall body, vertical steel plates installed parallel to both sides of the combined wall body, and a horizontal steel plate fixedly disposed outside the vertical steel plates. The horizontal steel plate is made of spring steel, and its outer end extends outward in the horizontal direction beyond the junction of the elastic concrete block and the concrete foundation. The horizontal steel plate is fixedly connected to the elastic concrete block, and its distal end is fixedly connected to the concrete foundation via anchor bars. Reinforcing bars are provided within the wall body, arranged vertically within the shear wall, with their lower ends passing through the elastic concrete block and extending into the concrete foundation.

[0006] Furthermore, an upper inclined beam connects the vertical steel plate and the horizontal steel plate. The upper inclined beam is installed obliquely on the upper side of the horizontal steel plate. A reaction support frame is fixed in the middle of the upper inclined beam. At least one elastic support unit is installed on the lower side of the reaction support frame. The elastic support unit is used to provide elastic support for the horizontal steel plate at the junction of the elastic concrete block and the concrete foundation.

[0007] Furthermore, the elastic support unit includes several arc-shaped steel plates stacked vertically in sequence, a central pin connecting the arc-shaped steel plates together, the outer ends of the arc-shaped steel plates being limited by steel plate sleeves, the curvature of each arc-shaped steel plate being consistent, the length of each arc-shaped steel plate gradually increasing from the bottom layer to the top layer, and the bottommost arc-shaped steel plate abutting against the upper surface of the horizontal steel plate.

[0008] Furthermore, a vertical support rod is fixedly connected to the outer end of the arc-shaped steel plate, the upper end of the vertical support rod is fixedly connected to the arc-shaped steel plate, and the lower end of the vertical support rod is fixedly connected to the horizontal steel plate.

[0009] Furthermore, a downward inclined beam is connected between the vertical steel plate and the horizontal steel plate. The downward inclined beam is installed obliquely on the lower side of the horizontal steel plate and is embedded inside the elastic concrete block.

[0010] Furthermore, a guide rod is fixed in the middle of the horizontal steel plate, and the lower end of the guide rod extends downward into the sleeve installed at the bottom of the concrete foundation. Damping cavities are evenly spaced vertically on the inner side of the sleeve. The guide rod and the partition plates at both ends of the damping cavity are in sliding sealing fit. The damping cavity is filled with damping fluid. Damping blocks are fixed on the guide rod, and each damping block corresponds to a damping cavity. A vertical through hole is opened on the damping block.

[0011] Furthermore, vertical angle steel is fixed to the inner side of the vertical steel plate, the vertical angle steel is arranged vertically, and channel steel is connected between the vertical angle steel of the two vertical steel plates.

[0012] Furthermore, a reinforcing cage is provided inside the concrete foundation, and the lower end of the reinforcing bar is bent outward into an L-shape and embedded inside the reinforcing cage.

[0013] Furthermore, the upper end of the reinforcing bar is connected to an anchor plate, which is installed on the upper side of the wall.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention discloses a reinforced concrete foundation anchorage joint. By installing an elastic concrete block on the upper side of the concrete foundation, in the event of strong winds or earthquakes, the elastic concrete block and the shear wall can displace together as a whole, thus allowing the interface between the elastic concrete block and the concrete foundation to shift outwards. Furthermore, the deformation at the interface is limited by a horizontal steel plate, effectively protecting the main structure of the anchorage joint from damage and preventing excessive opening at the interface between the shear wall and the concrete foundation after impact. This joint achieves a super-strong connection between a strong node and a weak component.

[0016] In the structure disclosed in this invention, an elastic concrete block is installed between the shear wall and the concrete foundation. The elastic concrete block has a certain degree of elasticity, which can adapt to the damage caused by hard contact between the shear wall or the concrete foundation to a certain extent, and can ensure the service life of the device after the disaster.

[0017] In the structure disclosed in this invention, by directly inserting the lower end of the vertical steel plate into the elastic concrete, the vertical steel plate can directly bear the force, which can reduce the mutual influence between the shear wall and the elastic concrete.

[0018] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0020] Figure 1 This is a schematic diagram of the anchoring node of the present invention;

[0021] Figure 2 This is a schematic diagram of the steel mesh structure of the present invention;

[0022] Figure 3 for Figure 2 The main view;

[0023] Figure 4 for Figure 1 Enlarged view at point A;

[0024] Figure 5 This is a schematic diagram of the structure of the elastic support unit;

[0025] Figure 6 This is a schematic diagram of the deformation of a horizontal steel plate.

[0026] The following are labeled in the attached diagram: 1. Concrete foundation; 2. Recess; 3. Elastic concrete block; 4. Shear wall; 5. Wall; 6. Vertical steel plate; 7. Horizontal steel plate; 8. Anchor bar; 9. Insert bar; 10. Upper inclined beam; 12. Reaction support frame; 13. Elastic support unit; 14. Curved steel plate; 15. Center pin; 16. Steel plate sleeve; 17. Vertical support rod; 18. Lower inclined beam; 19. Guide rod; 20. Sleeve; 21. Damping cavity; 22. Partition plate; 23. Damping block; 24. Through hole; 25. Vertical angle steel; 26. Channel steel; 27. Reinforcing cage; 28. Anchor plate. Detailed Implementation

[0027] like Figures 1-6As shown, this invention discloses a reinforced concrete foundation anchoring node, comprising a concrete foundation 1, which is cast in place. A recess 2 is formed on the upper side of the concrete foundation 1, and the recess 2 is generally rectangular. The recess 2 is filled with an elastic concrete block 3, which is made of elastic concrete material and is cast separately from the concrete foundation 1. In the event of natural disasters such as strong winds or earthquakes, the elastic concrete block 3 will first separate at the junction of the two.

[0028] A shear wall 4 is vertically inserted into the elastic concrete block 3. The shear wall 4 is entirely inserted into the elastic concrete block 3. The shear wall 4 includes a wall body 5, vertical steel plates 6 installed parallel to both sides of the combined wall body 5, and a horizontal steel plate 7 fixedly installed on the outside of the vertical steel plates 6. Of course, both the wall body 5 and the vertical steel plates 6 are inserted into the elastic concrete block 3. The horizontal steel plate 7 is made of spring steel and can deform to a certain extent under the action of external force. The horizontal steel plate 7 is parallel to the horizontal plane, that is, the horizontal steel plate 7 is perpendicular to the vertical steel plates 6.

[0029] Specifically, the outer end of the horizontal steel plate 7 extends outward along the horizontal direction and beyond the interface between the elastic concrete block 3 and the concrete foundation 1. When a relative displacement occurs due to deflection, the deformation at the interface can be limited by the horizontal steel plate 7, thereby effectively protecting the main structure of the anchoring node from damage and avoiding the problem of excessive opening at the interface between the shear wall 4 and the concrete foundation 1 after impact. As a constraint on the horizontal steel plate 7, the horizontal steel plate 7 is fixedly connected to the elastic concrete block 3, so that the inner part of the horizontal steel plate 7 can move together with the elastic concrete block 3. The far end of the horizontal steel plate 7 is fixedly connected to the concrete foundation 1 through the anchor bar 8 to limit the displacement of the outer end of the horizontal steel plate 7.

[0030] In this embodiment of the invention, a reinforcing bar 9 is provided inside the wall 5. The reinforcing bar 9 is arranged vertically within the shear wall 4, and its lower end passes through the elastic concrete block 3 and extends into the concrete foundation 1. By providing the reinforcing bar 9, the lower end of the shear wall 4 and the concrete foundation 1 can be effectively connected, effectively ensuring the strength and rigidity of the reinforcing bar 9 type joint.

[0031] In this embodiment, an upper inclined beam 10 connects the vertical steel plate 6 and the horizontal steel plate 7. The upper inclined beam 10 is installed obliquely on the upper side of the horizontal steel plate 7. The upper end of the upper inclined beam 10 is fixedly connected to the vertical steel plate 6, and the lower end of the upper inclined beam 10 is fixedly connected to the horizontal steel plate 7. The present invention has two sets of upper inclined beams 10. A reaction support frame 12 is fixed in the middle of the upper inclined beam 10. At least one elastic support unit 13 is installed on the lower side of the reaction support frame 12. The reaction support frame 12 has an L-shaped cross-section, providing vertical support for the elastic support unit 13. The elastic support unit 13 is used to provide elastic support for the horizontal steel plate 7 at the junction of the elastic concrete block 3 and the concrete foundation 1. This provides elastic support force to the horizontal steel plate 7 and acts as a buffer when the horizontal steel plate 7 undergoes abrupt deformation at the junction, effectively ensuring that the structure is not damaged.

[0032] In this embodiment, the elastic support unit 13 includes several vertically stacked arc-shaped steel plates 14 and a central pin 15 connecting the arc-shaped steel plates 14 together. The central pin 15 connects the arc-shaped steel plates 14 together, providing a buffering elastic support force. The outer ends of the arc-shaped steel plates 14 are simultaneously limited by steel plate sleeves 16, which further prevents the arc-shaped steel plates 14 from falling apart. The curvature of each arc-shaped steel plate 14 is consistent, and the length of each arc-shaped steel plate 14 gradually increases from the bottom layer to the top layer. The bottommost arc-shaped steel plate 14 abuts against the upper surface of the horizontal steel plate 7, providing downward elastic support for the horizontal steel plate 7.

[0033] In this embodiment, a vertical support rod 17 is fixedly connected to the outer end of the arc-shaped steel plate 14. The upper end of the vertical support rod 17 is fixedly connected to the arc-shaped steel plate 14, and the lower end of the vertical support rod 17 is fixedly connected to the horizontal steel plate 7. By setting multiple sets of vertical support rods 17, each vertical support rod 17 can correspond to an arc-shaped steel plate 14, thus providing multi-point longitudinal support for the horizontal steel plate 7, achieving a better support effect. By distributing the force through multi-point support, the deformation parts of the horizontal steel plate 7 can be better protected. A downward inclined beam 18 connects the vertical steel plate 6 and the horizontal steel plate 7. The downward inclined beam 18 is installed obliquely on the lower side of the horizontal steel plate 7 and is embedded in the inner side of the elastic concrete block 3. By setting the combination of the downward inclined beam 18 and the upward inclined beam 10 to connect the vertical steel plate 6 and the horizontal steel plate 7, the vertical steel plate 6 and the horizontal steel plate 7 can be tightly connected, facilitating the overall displacement of the shear wall 4 and the horizontal steel plate 7.

[0034] In this embodiment, a guide rod 19 is fixed in the middle of the horizontal steel plate 7. The lower end of the guide rod 19 extends downward into the sleeve 20 installed at the bottom of the concrete foundation 1. Damping cavities 21 are evenly spaced vertically on the inner side of the sleeve 20. The guide rod 19 and the partition plates 22 at both ends of the damping cavity 21 are slidably sealed together. The damping cavity 21 is filled with damping fluid. A damping block 23 is fixed on the guide rod 19. The damping block 23 corresponds one-to-one with the damping cavity 21. A vertical through hole 24 is opened on the damping block 23. When the shear wall 4 deflects under the action of the external force, the horizontal steel plate 7 drives the guide rod 19 to move upward. The guide rod 19 can be made of a material with a certain degree of elasticity and can adapt to bending. The displacement of the guide rod 19 can drive the damping block 23 to move, so that the damping fluid can continuously pass through the through hole 24 on the damping block 23. The damping fluid can provide damping force to the damping block 23, so as to achieve a better buffering effect on the guide rod 19 and the horizontal steel plate 7 connected to the guide rod 19.

[0035] In this embodiment, vertical angle steel 25 is fixed to the inner side of the vertical steel plate 6. The vertical angle steel 25 is arranged vertically, and a channel steel 26 connects the vertical angle steel 25 of the two vertical steel plates 6, which increases the overall structural strength of the shear wall 4. At the same time, the present invention installs horizontal angle steel on the outer side of the vertical steel plate 6. The horizontal angle steel is installed at the junction of the vertical steel plate 6 and the horizontal steel plate 7, which can not only effectively connect the two, but also further avoid the problem of excessive opening.

[0036] In this embodiment, a reinforcing cage 27 is installed inside the concrete foundation 1. The lower ends of the reinforcing bars 9 are bent outwards into an L-shape and embedded inside the reinforcing cage 27. By inserting the reinforcing bars 9 between the reinforcing cages 27, the reinforcing cages 27 can be used to limit the vertical movement of the reinforcing bars 9. In this embodiment, the upper ends of the reinforcing bars 9 are connected to anchor plates 28, which are installed on the upper side of the wall 5. By setting the anchor plates 28, a downward anchoring force can be applied to the concrete foundation 1 after it is poured, allowing the reinforced concrete foundation 1 and the shear wall 4 to be tightly connected and fitted together.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A type of dowel-reinforced concrete foundation anchorage joint, characterized in that: The system includes a concrete foundation with a recess on its upper side filled with an elastic concrete block. A shear wall is vertically inserted into the elastic concrete block. The shear wall comprises a wall body, vertical steel plates installed parallel to both sides of the composite wall body, and a horizontal steel plate fixedly installed on the outside of the vertical steel plates. The horizontal steel plate is made of spring steel, and its outer end extends horizontally outward beyond the junction of the elastic concrete block and the concrete foundation. The horizontal steel plate is fixedly connected to the elastic concrete block, and its distal end is fixedly connected to the concrete foundation via anchor bars. Inserted reinforcing bars are installed within the wall body, arranged vertically within the shear wall. The lower end of each reinforcing bar passes through the elastic concrete block. The vertical steel plate and the horizontal steel plate are connected by an upper inclined beam. The upper inclined beam is installed obliquely on the upper side of the horizontal steel plate. A reaction support frame is fixed in the middle of the upper inclined beam. At least one elastic support unit is installed on the lower side of the reaction support frame. The elastic support unit is used to provide elastic support for the horizontal steel plate at the junction of the elastic concrete block and the concrete foundation. The elastic support unit includes several arc-shaped steel plates stacked vertically and a central pin connecting the arc-shaped steel plates together. The outer ends of the arc-shaped steel plates are simultaneously limited by steel plate sleeves. The curvature of each arc-shaped steel plate is consistent. The length of each arc-shaped steel plate gradually increases from the bottom layer to the top layer. The bottom arc-shaped steel plate abuts against the upper surface of the horizontal steel plate.

2. The anchorage joint for a reinforced concrete foundation according to claim 1, characterized in that: A vertical support rod is fixedly connected to the outer end of the arc-shaped steel plate. The upper end of the vertical support rod is fixedly connected to the arc-shaped steel plate, and the lower end of the vertical support rod is fixedly connected to the horizontal steel plate.

3. The dowel-type concrete foundation anchorage joint according to claim 1, characterized in that: A downward inclined beam connects the vertical steel plate and the horizontal steel plate. The downward inclined beam is installed at an angle on the lower side of the horizontal steel plate and is embedded inside the elastic concrete block.

4. The dowel-type concrete foundation anchorage joint according to claim 1, characterized in that: A guide rod is fixed in the middle of the horizontal steel plate. The lower end of the guide rod extends downward into the sleeve installed at the bottom of the concrete foundation. Damping cavities are evenly spaced vertically on the inner side of the sleeve. The guide rod and the partition plates at both ends of the damping cavity are slidably sealed together. The damping cavity is filled with damping fluid. Damping blocks are fixed on the guide rod. Each damping block corresponds to a damping cavity. A vertical through hole is opened on the damping block.

5. The dowel-type concrete foundation anchorage joint according to claim 1, characterized in that: Vertical angle steel is fixed to the inner side of the vertical steel plate. The vertical angle steel is arranged vertically, and a channel steel connects the vertical angle steel of the two vertical steel plates.

6. A reinforced concrete foundation anchorage joint according to any one of claims 1-5, characterized in that: A reinforcing cage is installed inside the concrete foundation, and the lower end of the reinforcing bar is bent outward into an L-shape and embedded inside the reinforcing cage.

7. The dowel-type concrete foundation anchorage joint according to claim 6, characterized in that: The upper end of the reinforcing bar is connected to an anchor plate, which is installed on the upper side of the wall.

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