CN212772494U

CN212772494U - Split type anti-floating anchor rod

Info

Publication number: CN212772494U
Application number: CN202021053504.7U
Authority: CN
Inventors: 李忠辉; 秦珊; 许爱华
Original assignee: Rizhao Xingye Real Estate Development Co ltd
Current assignee: Rizhao Xingye Real Estate Development Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-03-23
Anticipated expiration: 2030-06-10

Abstract

Split type anti-floating anchor rod relates to construction technical field, especially belongs to the anti-floating anchor rod of a components of a whole that can function independently installation construction. The anchor rod is characterized by comprising an anchor rod body, an upper connector and a lower connector which are sequentially arranged, wherein the upper connector and the lower connector are hollow cylinders with two through ends, and the upper connector is in threaded connection with the lower connector; the anchor rod body is a steel bar, and the steel bar is connected with the bottom of the lower connecting body in a sealing mode through the connecting end plate at the top. Has the positive effects of strong practicability, shortening the construction period, improving the waterproof effect, reducing the thickness of the raft foundation and the like.

Description

Split type anti-floating anchor rod

Technical Field

The utility model relates to a construction technical field especially belongs to an anti-floating anchor rod of components of a whole that can function independently installation and construction.

Background

The anti-floating anchor rod, also called anti-floating pile, is one of the anti-floating measures for underground structure in building engineering.

Along with economic construction's development, in order to make full use of limited land resource, urban building constantly develops toward eminence and depths, and high-rise building must be along with deep foundation construction, causes the destruction in order to prevent the buoyancy of groundwater to waterproof bottom plate structure, and the thickness of multiplicable raft foundation during the design also can adopt anti-floating stock to resist the buoyancy of groundwater. The thickness of the raft foundation is increased, and the cost increase and the mass common fault of mass concrete construction are inevitably brought.

At present, an anchor rod device capable of being directly installed and constructed does not exist, the anti-floating of the underground structure of the building engineering is realized through the anchor rod pouring and the complex waterproof process, and the waterproof method is as follows:

firstly, a circular groove is formed around the anchor rod, and then cement with the radius of 400 and permeable crystallization type waterproof coating with the thickness of 1mm are formed on the periphery of the anchor rod.

And secondly, brushing 905 paint or other waterproof paint with the radius of 250 along the periphery of the anchor rod, and coating 50mm along the anchor rod.

And thirdly, wrapping the reinforcing steel bars by using a 1.5mm double-sided self-adhesive waterproof coiled material (or other waterproof materials), and enabling the cylinder to be in close contact with the reinforcing steel bars.

Fourthly, filling the double-sided self-adhesive coiled material cylinder with non-cured waterproof paint, and spraying an additional layer of liquid SSE (or other waterproof materials) on the outer side of the double-sided self-adhesive coiled material cylinder to turn over for 50 mm.

Fifthly, the whole cushion layer is sprayed with water-proof paint.

However, the following problems are easy to occur in the actual operation process:

1. the site construction process is complex, and the construction period is long when large-area construction is carried out;

2. when the coiled material is used for waterproof construction, the coiled material is extremely difficult to construct at the top of the anchor rod, and the waterproof effect is poor;

3. according to the requirement of the method on page 104 of the atlas 16G101-3, the vertical anchoring length of the anchor rod main reinforcement in the raft foundation is not less than 20d (d is the diameter of the steel bar), the influence on the thickness of the raft foundation is large, and the cost is increased;

4. because the construction period is long, the external leakage anchoring steel bar is easy to rust, the later construction increases the derusting link, wastes time and energy and increases the cost.

Disclosure of Invention

An object of the utility model is to provide a split type anti-floating anchor rod promptly to reach and to reduce engineering cost, can avoid raft foundation too thick again for the purpose of the quality hidden danger that the concrete construction brought.

The utility model provides a split type anti-floating anchor rod, which is characterized in that the anchor rod comprises an anchor rod body, an upper connector and a lower connector which are arranged in sequence, the upper connector and the lower connector are hollow cylinders with two through ends, and the upper connector is in threaded connection with the lower connector; the anchor rod body is a steel bar, and the steel bar is connected with the bottom of the lower connecting body in a sealing mode through the connecting end plate at the top.

Furthermore, a plurality of connecting wing plates arranged in an annular array are arranged along the outer circumferential direction of the upper connecting body.

Furthermore, the anchor rod body is composed of a plurality of reinforcing steel bars which are arranged in parallel.

The utility model provides a split type anti-floating anchor rod, structural design is simple, reasonable, has following advantage:

1. the split installation construction is simple and easy to operate on site, the construction process is simplified, the construction efficiency can be improved, and the construction period can be shortened;

2. the waterproof method is optimized, the working procedures are greatly reduced, and the waterproof effect is effectively improved;

3. effectively reduce the requirement of anti-floating anchor rod anchoring length to raft foundation thickness, can greatly save raft foundation cost.

4. But stock component industrial standardization volume production reduces on-the-spot manufacturing procedure, and the component quality obtains effective guarantee, and simultaneously, the stock is gone up the connector and is all adopted the stainless steel processing with lower connector, and the later stage need not to carry out the rust cleaning work. To sum up, the utility model discloses have the positive effect that the practicality is strong, shorten the engineering time limit for a project and improve water-proof effects, reduce positive effects such as raft foundation thickness.

Drawings

The accompanying drawings partially disclose embodiments of the present invention, in which,

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partial schematic view of the anchor rod body of the present invention;

FIG. 3 is a partial schematic view of the present invention;

fig. 4 is a partial schematic view of the upper connecting body of the present invention;

fig. 5 is an application state diagram of the present invention.

Detailed Description

As shown in fig. 1-5, the split anti-floating anchor rod provided by the present invention comprises an anchor rod body 1, an upper connector 3 and a lower connector 2, which are connected in sequence from bottom to top. The upper connector and the lower connector are both hollow cylinders with two through ends, and are made of stainless steel materials, and the later derusting operation is not needed. Specifically, the method comprises the following steps: wherein the stock body of rod comprises many parallel arrangement's reinforcing bar, and many reinforcing bars all weld on a connection end plate 5 at the top to through the bottom sealing connection of connecting end plate and lower connector, simultaneously, the top of lower connector has the external screw thread section, and the bottom of going up the connector has interior screw thread section, goes up the connector and realizes the connection fixedly through screw-thread fit with lower connector. In addition, for the convenience of strengthening the anchor effect of this device of later stage concrete placement process, still have a plurality of connection pterygoid lamina 4 that are the annular array and arrange on the outer circumferencial direction of upper connector, the centre of connecting the pterygoid lamina has the through-hole, will connect pterygoid lamina and raft board reinforcement through the reinforcing bar and be connected.

The device will be further described with reference to an embodiment of the device.

The anchor rod body is made of steel bars with the diameter of 25 or 28, and the top ends of the steel bars are connected with the connecting end plate through plug welding; the connecting end plate and the lower connecting body are connected by circumferential groove welding, no gap can be left, and the circumferential ring is polished to be smooth after welding is completed. After the clear hole of foundation soil body A is accomplished, put into the stock body of rod to downthehole pouring concrete, after the concrete reaches specified intensity, pour concrete cushion B, after the concrete cushion is accomplished, lower connector is with the same spraying SSE waterproof coating of concrete cushion B, then the connector is installed on the upper portion of connector down, simultaneously, it penetrates 300mm anchor reinforcing bar D to go up the connection pterygoid lamina in the connector periphery, be connected with raft board reinforcement, after the installation, pour the raft foundation can. The split type anti-floating anchor rod of the device can realize quantitative production, improves the quality of the anchor rod, strengthens the waterproof effect, simplifies the construction process and can promote the optimization development of anchor rod construction.

Claims

1. A split type anti-floating anchor rod is characterized by comprising an anchor rod body (1), an upper connecting body (3) and a lower connecting body (2) which are sequentially arranged, wherein the upper connecting body and the lower connecting body are hollow cylinders with two through ends, and the upper connecting body is in threaded connection with the lower connecting body; the anchor rod body is a steel bar, and the steel bar is hermetically connected with the bottom of the lower connecting body at the top through a connecting end plate (5).

2. The split type anti-floating anchor rod according to claim 1, further characterized in that a plurality of connection wings (4) are further provided in an annular array in the direction of the outer circumference of the upper connection body.

3. The split anti-floating anchor rod according to claim 1, further characterized in that the anchor rod body is composed of a plurality of reinforcing bars arranged in parallel.