CN205205847U - Frame construction of stake cushion cap - Google Patents

Abstract

The utility model relates to a frame construction of stake formula cushion cap, including foundation pile, structure post and cushion cap, the structure post passes the cushion cap and is connected with the foundation pile, the foundation pile is by the at least three pile body frames that the main muscle of stake encloses, be provided with on the outer lane of the pile body frame that encloses around the main muscle of stake with the pile ring muscle that the main muscle of stake is connected, the structure post encloses into the cylinder frame by post owner muscle, is provided with the ties muscle of being connected with post owner muscle on the outer lane of the cylinder frame that encloses around cylinder owner muscle. The utility model discloses a whole component of stake is connected with the cushion cap, and the pressure -bearing mechanical properties of full play structure stake improves the bearing capacity and the efficiency of construction of foundation pile, strengthens the rigidity nodal connection of cushion cap and stake through the node design, thereby the full play cushion cap improves the compound bearing capacity of stake as the bearing plate, the bearing capacity obtain full play, effectively reduce long, the improvement efficiency of construction, reduction construction costs, economic benefits is showing more.

Description

Frame structure of pile caps

technical field

The utility model relates to a frame structure of a pile cap, which belongs to the construction field.

Background technique

Pile cap structures often appear in the foundation structures of pipe corridors, finger corridors, and underground passages. It is common to use extruded piles as the pile foundation, and choose to change the diameter of the pile body at different positions according to the soil layer conditions to form a bearing plate to improve the pile foundation. Bearing capacity, the load of the whole pile is jointly borne by the friction force around the pile and the supporting force of the enlarged area. The traditional cap is composed of three main structural components and processes. The construction sequence is to construct the pile first, then construct the cap, and finally construct the structural column. The processing is cumbersome, time-consuming and labor-intensive, and the bearing capacity of the cap is limited, the height of the pile must be deep enough, the amount of steel and concrete used is large, and the cost is too high. The Chinese patent with the patent number CN201241335 discloses a pile-column integrated foundation structure in underground engineering, including a concrete foundation pile at the lower part of the pile hole and a steel pipe column connected to the upper part. The concrete foundation pile is composed of concrete, steel casing and steel bars The cage is poured into one body. At the junction of the concrete foundation pile and the steel pipe column, the upper part of the longitudinal reinforcement of the steel cage is welded to the lower part of the steel casing. The inner wall of the lower part of the steel casing is fixedly connected with the pre-embedded anchor feet. The central anchorage concrete fixes the pile and the column interface positioning device. Although the problem of accurate positioning of the steel pipe column and the foundation pile is solved and the process is simplified, the integrity of the pile and the column is poor, the strength is not high, and the cost has not been reduced.

Utility model content

The purpose of the utility model is to provide a frame structure of pile caps in order to solve the defects of cumbersome processing, poor strength and high construction cost in the existing caps.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the frame structure of the pile cap, including foundation piles, structural columns and caps, and the structural columns pass through the caps to connect with the foundation piles; The foundation pile is a pile body frame surrounded by at least three pile main reinforcements, and the outer ring of the pile body frame surrounded by the pile main reinforcements is provided with pile stirrups connected with the pile main reinforcements; the structural column The column frame is surrounded by the column main reinforcement, and the column stirrup connected with the column main reinforcement is arranged on the outer ring of the column frame surrounded by the column main reinforcement.

The above-mentioned technical scheme adopts the connection between the integral component of the pile and the cap, reducing the three structural components from the traditional design to two components, giving full play to the mechanical performance of the structural pile and improving the bearing capacity and construction efficiency of the foundation pile; The connection between the cap and the pile forms a rigid node, and the cap is fully used as a bearing plate to improve the composite bearing capacity of the pile.

Preferably, the inner diameter of the pile frame of the foundation pile is 1-2 times the inner diameter of the column frame of the structural column. It can not only ensure high support strength, improve the composite bearing capacity of piles, but also save materials and reduce construction costs.

Preferably, the structural column protrudes into the foundation pile, and the protruding height is H.

Preferably, H is 1/20-1/10 of the height of the foundation pile. On the premise of ensuring the bearing capacity, the cost is saved and the construction efficiency is improved.

As a preference, the outer ring of the pile body frame at the top of the foundation pile is provided with auxiliary ribs, the auxiliary ribs are polygonal stirrups, and the connection strength is increased at the nodes to ensure the firmness of the connection and give full play to the strength of each part. Features.

Preferably, the pile stirrup adopts a spiral structure, so that the strength of the foundation pile is greater.

Preferably, a base plate is provided at the bottom of the column frame, and the area of the base plate is larger than the cross-sectional area of the column frame.

Preferably, the platform includes a main reinforcement of the platform connected to the main reinforcement of the structural column, and a rigid support plate is provided at a right angle between the main reinforcement of the platform and the main reinforcement of the structural column. Ensure the rigidity of the connection joints, give full play to the cap as a bearing plate to improve the composite bearing capacity of the pile, especially in the construction of the single-row pile cap, the bearing capacity of the pile is fully exerted, the pile length is effectively reduced, and the pile is doubled. construction efficiency.

As a preference, a column bolt is arranged on the main reinforcement of the structural column to strengthen the connection strength between the structural column and the concrete, and fully exert the function of the column.

Preferably, a bearing plate is arranged on the outside of the pile frame.

By implementing the above-mentioned technical scheme, the utility model has the following beneficial effects: the utility model adopts the integral component of the pile column to connect with the cap, fully exerts the pressure-bearing mechanical performance of the structural pile, and improves the bearing capacity and construction efficiency of the foundation pile. The integrity of the pile and column is strengthened, and the connection between the cap and the pile is strengthened through node design to form a rigid node, and the cap is used as a bearing plate to improve the composite bearing capacity of the pile. The bearing capacity of the pile is fully exerted, effectively The length of the pile is reduced, the construction efficiency is doubled, the construction cost is reduced, and the economic benefits are more significant.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the utility model embodiment 1;

Accompanying drawing 2 is the schematic diagram of the utility model embodiment 2;

Accompanying drawing 3 is the schematic diagram of the utility model embodiment 3;

Accompanying drawing 4 is the schematic diagram of the utility model embodiment 4.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Example 1:

The frame structure of the pile-type cap shown in Figure 1 is used in the foundation structure of pipe corridors, finger corridors, and underground passages. Taking steel pipe columns as an example, it includes foundation piles 11, structural columns 12 and caps 13, and structural columns 12 passes through the cap 13 and connects with the foundation pile 11; the foundation pile 11 is a pile body frame surrounded by at least three pile main reinforcements 111. The pile body frame can be a cylinder or a cuboid. In this embodiment, 6 pile main reinforcements 111 surrounded by a cylindrical shape. The outer ring of the pile body frame surrounded by the pile main reinforcement 111 is provided with a pile stirrup 112 connected with the pile main reinforcement 111, and the pile stirrup 112 adopts a spiral reinforcement with a spiral structure; the pile body frame outer ring at the top of the foundation pile 11 Auxiliary ribs 113 are provided, and the auxiliary ribs 113 are polygonal stirrups or circular stirrups, depending on the shape of the pile frame, and the latter circular stirrups are used in this embodiment. The cap 13 includes a cap main rib 131 connected to the column main rib 121 of the structural column 12 . The structural column 12 is surrounded by the column main reinforcement 121 to form a column frame, and the outer ring of the column frame surrounded by the column main reinforcement 121 is provided with a column stirrup 122 connected with the column main reinforcement 121; the inner diameter of the pile frame of the foundation pile 11 1-2 times the inner diameter of the column frame of the structural column 12, the structural column 12 can be the same thickness as the foundation column, or it can extend into the pile frame of the foundation pile 11, if it is extended into the interior, And the protruding height is H, and H is 1/20-1/10 of the height of the foundation pile 11 to be the best. In this embodiment, the structure in which the structural column 12 extends into the foundation pile 11 is adopted, and the inner diameter of the pile frame of the foundation pile 11 is 1.5 times the inner diameter of the column frame of the structural column 12 . The value of H is 1/15 of the height of the foundation pile 11 . The base plate 123 is provided at the bottom of the column frame, and the area of the base plate 123 is larger than the cross-sectional area of the column frame, and the pressure on the concrete below is small. During the construction process, concrete is poured into each frame with the help of formwork, and the formwork is removed after the concrete solidifies. A column bolt 1211 is arranged on the column main reinforcement 121 to strengthen the connection strength between the column frame and the concrete.

Example 2:

The frame structure of the pile cap, as shown in accompanying drawing 2, is used in the foundation structure of the pier abutment of the bridge, is example with steel pipe column, comprises foundation pile 11, structural column 12 and cap 13, and structural column 12 wears The overcap 13 is connected to the foundation pile 11; the foundation pile 11 is a pile body frame surrounded by at least three pile main reinforcements 111, and the pile body frame can be a cylinder or a cuboid. into a cuboid. The outer ring of the pile body frame surrounded by the pile main reinforcement 111 is provided with a pile stirrup 112 connected with the pile main reinforcement 111, and the pile stirrup 112 adopts a spiral reinforcement with a spiral structure; the pile body frame outer ring at the top of the foundation pile 11 Auxiliary ribs 113 are provided, and the auxiliary ribs 113 are polygonal stirrups or circular stirrups, depending on the shape of the pile frame, and the latter quadrilateral stirrups are used in this embodiment. The cap 13 includes a cap main rib 131 connected to the column main rib 121 of the structural column 12 , and a rigid support plate 132 is provided at a right angle between the cap cap main rib 131 and the column main rib 121 of the structural column 12 . The structural column 12 is surrounded by the column main reinforcement 121 to form a column frame, and the column stirrup 122 connected with the column main reinforcement 121 is arranged on the outer ring of the column frame surrounded by the column main reinforcement 121 . The structural column 12 extends into the structure of the foundation pile 11 , and the inner diameter of the pile frame of the foundation pile 11 is twice the inner diameter of the column frame of the structural column 12 . The value of H is 1/10 of the height of the foundation pile 11 . The base plate 123 is provided at the bottom of the column frame, and the area of the base plate 123 is larger than the cross-sectional area of the column frame, and the pressure on the concrete below is small. During the construction process, concrete is poured into each frame with the help of formwork, and the formwork is removed after the concrete solidifies. A column bolt 1211 is arranged on the column main reinforcement 121 to strengthen the connection strength between the column frame and the concrete.

Example 3:

The frame structure of the pile cap shown in Figure 3 is used in the foundation structure of the pipe gallery, finger gallery, and underground passage. Taking the steel pipe column as an example, it includes foundation piles 11, structural columns 12 and caps 13, and the structural columns 12 passes through the cap 13 and connects with the foundation pile 11; the foundation pile 11 is a pile body frame surrounded by at least three pile main reinforcements 111. The pile body frame can be a cylinder or a cuboid. In this embodiment, 6 pile main reinforcements 111 surrounded by a cylindrical shape. The outer ring of the pile body frame surrounded by the pile main reinforcement 111 is provided with a pile stirrup 112 connected with the pile main reinforcement 111, and the pile stirrup 112 adopts a spiral reinforcement with a spiral structure; the pile body frame outer ring at the top of the foundation pile 11 Auxiliary ribs 113 are provided, and the auxiliary ribs 113 are polygonal stirrups or circular stirrups, depending on the shape of the pile frame, and the latter circular stirrups are used in this embodiment. The cap 13 includes a cap main rib 131 connected to the column main rib 121 of the structural column 12 . The structural column 12 is surrounded by the column main reinforcement 121 to form a column frame, and the outer ring of the column frame surrounded by the column main reinforcement 121 is provided with a column stirrup 122 connected with the column main reinforcement 121; the inner diameter of the pile frame of the foundation pile 11 1-2 times the internal diameter of the column frame of the structural column 12, the structural column 12 can be the same thickness as the foundation pile, or it can extend into the pile frame of the foundation pile 11, if it extends into the interior, And the protruding height is H, and H is 1/20-1/10 of the height of the foundation pile 11 to be the best. In this embodiment, the structure in which the structural column 12 extends into the foundation pile 11 is adopted, and the inner diameter of the pile frame of the foundation pile 11 is 1.2 times the inner diameter of the column frame of the structural column 12 . The value of H is 1/20 of the height of the foundation pile 11. The base plate 123 is provided at the bottom of the column frame, and the area of the base plate 123 is larger than the cross-sectional area of the column frame, and the pressure on the concrete below is small. During the construction process, concrete is poured into each frame with the help of formwork, and the formwork is removed after the concrete solidifies.

Example 4:

The frame structure of the pile cap shown in Figure 4 is used in the foundation structure of the pipe gallery, finger corridor and underground passage. Taking the steel pipe column as an example, it includes the foundation pile 11, the structural column 12 and the cap 13, and the structural column 12 passes through cap 13 and connects with foundation pile 11; Foundation pile 11 is the pile body framework that is surrounded by at least three pile main reinforcements 111, and the outside of pile body frame is provided with bearing plate 115; Pile body frame can be cylinder, also can It is a cuboid, and the present embodiment is a cylindrical shape surrounded by six pile main reinforcements 111. The outer ring of the pile body frame surrounded by the pile main reinforcement 111 is provided with a pile stirrup 112 connected with the pile main reinforcement 111, and the pile stirrup 112 adopts a spiral reinforcement with a spiral structure; the pile body frame outer ring at the top of the foundation pile 11 Auxiliary ribs 113 are provided, and the auxiliary ribs 113 are polygonal stirrups or circular stirrups, depending on the shape of the pile frame, and the latter circular stirrups are used in this embodiment. The cap 13 includes a cap main rib 131 connected to the column main rib 121 of the structural column 12 . The structural column 12 is surrounded by the column main reinforcement 121 to form a column frame, and the outer ring of the column frame surrounded by the column main reinforcement 121 is provided with a column stirrup 122 connected with the column main reinforcement 121; the inner diameter of the pile frame of the foundation pile 11 1-2 times the inner diameter of the column frame of the structural column 12, the structural column 12 can be the same thickness as the foundation pile 11, or it can extend into the pile frame of the foundation pile 11, if it extends into the interior , and the protruding height is H, and H is the best for 1/20-1/10 of the foundation pile 11 height. The present embodiment adopts the structure that the structural column 12 and the foundation pile have the same thickness. The inner diameter of the pile frame of the foundation pile 11 is equal to the inner diameter of the column frame of the structural column 12. connected. During the construction process, concrete is poured into each frame with the help of formwork, and the formwork is removed after the concrete solidifies.

Claims (10)

1. the frame construction of pile-column cushion cap, comprise foundation pile (11), structural column (12) and cushion cap (13), it is characterized in that, described structural column (12) is connected with described foundation pile (11) through described cushion cap (13); The pile body framework that described foundation pile (11) is surrounded by the main muscle of at least three pile (111), the outer ring of the described pile body framework surrounded around the main muscle of described stake (111) is provided with the pile ring muscle (112) be connected with the main muscle of described stake (111); Described structural column (12) surrounds cylinder framework by the main muscle of post (121), and the outer ring of the described cylinder framework surrounded around the main muscle of described cylinder (121) is provided with the column tie-bar (122) be connected with the main muscle of described post (121).

2. the frame construction of pile-column cushion cap according to claim 1, is characterized in that, the internal diameter of the described pile body framework of described foundation pile (11) be the 1-2 of the described cylinder framework internal diameter of described structural column (12) doubly.

3. the frame construction of pile-column cushion cap according to claim 1 or 2, it is characterized in that, described structural column (12) extend in described foundation pile (11), and stretching into is highly H.

4. the frame construction of pile-column cushion cap according to claim 3, is characterized in that, H is the 1/20-1/10 of described foundation pile (11) height.

5. the frame construction of pile-column cushion cap according to claim 1, it is characterized in that, the described pile body framework outer ring at the top of described foundation pile (11) is provided with auxiliary bar (113), and described auxiliary bar (113) is polygon stirrup or circular stirrups.

6. the frame construction of pile-column cushion cap according to claim 1, is characterized in that, described pile ring muscle (112) adopts helical structure.

7. the frame construction of pile-column cushion cap according to claim 1, it is characterized in that, the bottom of described cylinder framework is provided with substrate plate (123), and the area of described substrate plate (123) is greater than the cross-sectional area of described cylinder framework.

8. the frame construction of pile-column cushion cap according to claim 1, it is characterized in that, described cushion cap (13) comprises the main muscle of cushion cap (131) be connected with the main muscle of post (121) of described structural column (12), and the right angle that the main muscle of described cushion cap (131) is connected with the main muscle of post (121) of described structural column (12) is provided with rigid support plate (132).

9. the frame construction of pile-column cushion cap according to claim 1, is characterized in that, the main muscle of post (121) of described structural column (12) is provided with post bolt (1211).

10. the frame construction of pile-column cushion cap according to claim 1, it is characterized in that, the arranged outside of described pile body framework has force bearing disk (115).