Connecting device and method for connecting latticed column and reinforcement cage

Abstract

The invention provides a connecting device and method for connecting a latticed column and a reinforcement cage, the connecting device comprises two connecting assemblies, each connecting assembly comprises an arc-shaped plate, a chord plate, at least two bolt holes and fixing components matched with the bolt holes, the two ends of the chord plate abut against the arc-shaped plate, and the two ends of the chord plate abut against the arc-shaped plate; and the bolt hole is formed in the chord plate. The structure of the connecting device is designed according to the shape of the gap between the latticed column and the reinforcement cage, the connecting device serves as a connecting medium to establish connection between the latticed column and the reinforcement cage, the connecting efficiency of the latticed column and the reinforcement cage is effectively improved, inward bending construction does not need to be conducted on main reinforcements of the reinforcement cage, and the construction cost is reduced. And the construction quality is improved while the connection construction efficiency of the latticed column and the reinforcement cage is improved.

Description

Technical Field

[0001] The invention relates to the technical field of underground building construction, and in particular to a connecting device and a connecting method for connecting a lattice column and a steel cage. Background Art

[0002] The column pile mainly consists of two parts: lattice column and reinforced concrete cast-in-place pile. The upper lattice column is a steel component, and the lower part is a reinforced concrete bored cast-in-place pile steel cage foundation. Usually the lattice column and the bored cast-in-place pile steel cage are connected by welding. The specific method is as follows:

[0003] After the bored pile reinforcement cage is lowered into place, the main reinforcement of the cage top is bent inward to adapt to the shape of the lattice column, and then the bored pile reinforcement cage is welded to the lattice column. However, due to the high rigidity of the main reinforcement of the bored pile reinforcement cage, it is difficult to operate the inward bending of the main reinforcement, resulting in a certain angle between the main reinforcement of the reinforcement cage and the lattice column, and the welding quality between the bored pile reinforcement cage and the steel lattice column cannot be guaranteed.

[0004] With regard to the connection between lattice columns and bored pile reinforcement cages in the prior art, the main reinforcement of the bored pile reinforcement cage is difficult to be bent inward, resulting in a problem of low welding quality between the main reinforcement of the bored pile reinforcement cage and the steel lattice column. Technical personnel in this field have been looking for solutions. Summary of the invention

[0005] The object of the present invention is to provide a connecting device and a connecting method for connecting a lattice column and a reinforcement cage, which can improve the welding quality between the bored pile reinforcement cage and the steel lattice column.

[0006] In order to solve the above technical problems, the present invention provides a connecting device for connecting a lattice column and a steel cage, wherein the connecting device for connecting a lattice column and a steel cage comprises: two connecting components, each connecting component comprises: an arc plate, a chord plate, at least two bolt holes and a fixing member matching the bolt holes, the two ends of the chord plate abut against the arc plate, and the bolt holes are opened on the chord plate.

[0007] Optionally, in the connecting device for connecting the lattice column and the steel cage, the outer diameter of the arc plate is equal to the inner diameter of the steel cage.

[0008] Optionally, in the connecting device for connecting a lattice column and a steel cage, the arc-shaped plate is a semicircular arc-shaped steel plate.

[0009] Optionally, in the connecting device for connecting the lattice column and the steel cage, it is characterized in that the fixing member includes: high-strength bolts and nuts matched therewith.

[0010] Optionally, in the connecting device for connecting the lattice column and the steel cage, the number of the bolt holes is two.

[0011] The present invention also provides a method for connecting a lattice column and a steel cage, wherein the method for connecting a lattice column and a steel cage comprises the following steps:

[0012] Hoist and lower the steel cage until the main reinforcement of the steel cage reaches the predetermined elevation, and temporarily stabilize the steel cage;

[0013] After lifting the lattice column and inserting it into the steel cage to the designed elevation, adjust the verticality and plane position of the lattice column;

[0014] According to the specifications of the lattice column and the steel cage, a matching connection device as described above is selected, and according to the bolt holes opened on the chord plate of the connection device, bolt holes of the same specifications are opened on two oppositely distributed gusset plates at the same elevation of the lattice column and the top of the steel cage;

[0015] The two connection components of the connection device are arranged opposite to each other so as to be located between the main reinforcement of the steel cage and the lattice column, and the bolt holes on the two chord plates of the connection device are respectively aligned with the bolt holes on the two oppositely distributed gusset plates of the lattice column, and the bolt holes on the gusset plates are bolted to the bolt holes on the chord plates based on the fixing components to establish the connection between the connection device and the lattice column;

[0016] Welding the arc-shaped plate of the connecting device to the main reinforcement of the steel cage on its outer side to establish a connection between the connecting device and the steel cage;

[0017] Lift the lattice column and the steel cage as a whole, pull out the shoulder pole, and slowly lower them to the designed elevation to complete the connection and installation of the lattice column and the steel cage.

[0018] Optionally, in the method for connecting the lattice column and the steel cage, selecting a connecting device matching the lattice column and the steel cage according to their specifications comprises the following steps:

[0019] The connecting device is selected according to the inner diameter of the steel cage, and the outer diameter of the arc plate of the selected connecting device is equal to the inner diameter of the steel cage;

[0020] The connection device is selected according to the distance between the lattice column and the same elevation position of the top of the steel cage, and the distance between the chord plate and the arc plate of the selected connection device is equal to the distance between the lattice column and the same elevation position of the top of the steel cage.

[0021] Optionally, in the method for connecting the lattice column and the steel cage, the bolt holes with the same specifications are opened on two relatively distributed tie plates at the same elevation of the lattice column and the top of the steel cage according to the bolt holes opened on the chord plate of the connecting device, which comprises the following steps:

[0022] Obtain the size of the bolt holes on the chord plate and the spacing data between two adjacent bolt holes;

[0023] According to the obtained size of the bolt holes on the chord plate and the spacing data, bolt holes with the same specifications are opened on two relatively distributed tie plates at the same elevation of the lattice column and the top of the steel cage.

[0024] Optionally, in the method for connecting the lattice column and the steel cage, welding the arc-shaped plate of the connecting device to the main reinforcement of the steel cage on its outer side comprises the following steps:

[0025] When welding steel bars on one side, the welding length should be 10 times the diameter of the main reinforcement of the steel cage;

[0026] When double-sided welding of steel bars is performed, the welding length must reach 5 times the diameter of the main reinforcement of the steel cage.

[0027] In the connection device and connection method for connecting the lattice column and the steel cage provided by the present invention, the connection device includes two connection components, each of which includes: an arc plate, a chord plate, at least two bolt holes and a fixing member matched with the bolt holes, the two ends of the chord plate abut against the arc plate, and the bolt holes are opened on the chord plate. By designing the structure of the connection device of the present invention according to the gap morphology between the lattice column and the steel cage, the connection between the lattice column and the steel cage is established with the connection device as a connection medium, which effectively improves the connection efficiency between the lattice column and the steel cage, and does not require the main reinforcement of the steel cage to be bent inwardly, thereby improving the construction efficiency of the connection between the lattice column and the steel cage while improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0029] Figure 1 It is a structural schematic diagram of a connection assembly of a connection device for connecting a lattice column and a steel cage in one embodiment of the present invention;

[0030] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the present invention in which a connecting device is applied to connect a lattice column and a steel cage;

[0031] Figure 3 It is a plan view of a connection device used to connect a lattice column and a steel cage in one embodiment of the present invention;

[0032] Figure 4 The present invention is a flowchart of a method for connecting a lattice column and a steel cage according to an embodiment of the present invention.

[0033] In the figure:

[0034] 1-connecting device; 10-connecting assembly; 101-arc plate; 102-chord plate; 103-bolt hole; 104-fixing member;

[0035] 2- lattice column; 21- gusset plate; 22- angle steel;

[0036] 3-reinforcement cage; 31-main reinforcement; 32-hoops. DETAILED DESCRIPTION

[0037] The following is a further detailed description of the connection device and method for connecting a lattice column and a steel cage proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] In the description of the invention, it is necessary to understand that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to the specific circumstances.

[0042] Please refer to Figure 1 The connection device 1 for connecting the lattice column and the steel cage includes: two connection components 10, each connection component 10 includes: an arc plate 101, a chord plate 102, at least two bolt holes 103 and a fixing member 104 matching the bolt holes 103, the two ends of the chord plate 102 are abutted on the arc plate 101, and the bolt holes 103 are opened on the chord plate 102.

[0043] By designing the structure of the connecting device of the present invention according to the gap morphology between the lattice column and the steel cage, the connection between the lattice column and the steel cage is established using the connecting device as a connecting medium, thereby effectively improving the connection efficiency between the lattice column and the steel cage, eliminating the need to bend the main bars of the steel cage inward, thereby improving the construction efficiency of the connection between the lattice column and the steel cage and improving the construction quality.

[0044] In addition, the connection device is designed to consist of two connection components, which can make it easier to install the connection device in the gap between the lattice column and the steel cage. The installation process is simple and the construction time is reduced.

[0045] In this embodiment, the number of the bolt holes 103 is preferably two, and the two points are collinear, which is sufficient to stably bolt the two components together.

[0046] Furthermore, the outer diameter of the arc plate 101 is equal to the inner diameter of the steel cage, so that the surface of the arc plate is consistent with the morphology of the steel cage, and the two fit together without gaps to improve welding quality. In this embodiment, the arc plate 101 is preferably a semicircular arc steel plate, so that the main reinforcement of the steel cage can be welded to it later.

[0047] Please refer to Figure 2 and Figure 3 The fixing member 104 includes: a high-strength bolt and a matching nut. By matching the high-strength bolt and the nut and opening bolt holes on the corresponding members of the lattice column, the connection assembly is bolted to the lattice column. The fixing member used has a low cost and is convenient to construct.

[0048] Accordingly, this embodiment also provides a method for connecting a lattice column and a steel cage. Figure 4The method for connecting the lattice column and the steel cage described in this embodiment is described in detail.

[0049] First, execute step S1, hoist and lower the steel cage 3 until the main reinforcement 31 of the steel cage reaches the predetermined elevation, and temporarily stabilize the steel cage 3; the steel cage 3 here includes main reinforcement 31 and stirrups 32, and the main reinforcement 31 and stirrups 32 together constitute the main structure of the steel cage 3, the main reinforcement 31 is usually evenly arranged around to form a circular steel cage, and the stirrups 32 are fixed around the outside of the steel cage, thereby increasing the stability and strength of the steel cage.

[0050] Next, execute step S2, lift the lattice column 2 and insert it into the steel cage 3 to the designed elevation, and then adjust the verticality and plane position of the lattice column 2; the lattice column 2 here includes: a gusset plate 21 and an angle steel 22, the gusset plates 21 are arranged at equal intervals along the longitudinal direction of the angle steel 22, and are connected to the angle steel 22 of the lattice column by welding, the gusset plates 21 with bolt holes are at the same elevation as the top of the steel cage, and at this time, the elevation of the main reinforcement 31 of the steel cage is the same as the elevation of the gusset plates 21 with bolt holes.

[0051] Next, step S3 is performed, wherein the connecting device 1 described above that matches the lattice column 2 and the steel cage 3 is selected according to the specifications thereof, and bolt holes of the same specifications are opened on two oppositely distributed gusset plates 21 at the same elevation position of the lattice column 2 and the top of the steel cage 3 according to the bolt holes 103 opened on the chord plate 102 of the connecting device 1;

[0052] Among them, the method of selecting the connecting device as described above that matches the specifications of the lattice column 2 and the steel cage 3 includes the following steps: selecting a connecting device according to the inner diameter of the steel cage 3, the outer diameter of the arc plate 101 of the selected connecting device is equal to the inner diameter of the steel cage 3; selecting a connecting device according to the distance between the lattice column 2 and the top of the steel cage 3 at the same elevation, the distance between the chord plate 102 and the arc plate 101 of the selected connecting device is equal to the distance between the lattice column 2 and the top of the steel cage 3 at the same elevation.

[0053] Among them, the bolt holes 103 opened on the chord plate of the connecting device and the bolt holes of the same specifications on the two relatively distributed gusset plates 21 at the same elevation position of the lattice column 2 and the top of the steel cage 3 include the following steps: obtaining the size of the bolt hole 103 on the chord plate and the spacing data between two adjacent bolt holes 103; according to the obtained size of the bolt hole 103 on the chord plate and the spacing data, bolt holes of the same specifications are opened on the two relatively distributed gusset plates 21 at the same elevation position of the lattice column 2 and the top of the steel cage 3.

[0054] Next, please refer to Figure 3, execute step S4, relatively dispose the two connection components of the connection device so that they are located between the main reinforcement 31 of the steel cage and the lattice column 2 (at this time, the main reinforcement of the steel cage is evenly arranged on the outer side of the arc plate 101 of the connection device, and the two chord plates 102 of the connection device are respectively vertically fitted with two relatively distributed gusset plates 21 of the lattice column at the same elevation as the top of the steel cage 3), and the bolt holes 103 on the two chord plates 102 of the connection device are respectively aligned with the bolt holes on the two relatively distributed gusset plates 21 of the lattice column 2, and the bolt holes on the gusset plates 21 and the bolt holes 103 on the chord plates 102 are bolted together based on the fixing member to establish the connection between the connection device and the lattice column 2;

[0055] Then, if Figure 2 and Figure 3 As shown, step S5 is performed to weld the arc-shaped plate 101 of the connecting device to the main reinforcement cage 31 on its outer side to establish a connection between the connecting device and the reinforcement cage 3.

[0056] Among them, the welding of the arc plate 101 of the connecting device with the main reinforcement cage 31 on its outer side includes the following steps: when single-sided welding of the steel bar is performed, the welding length must reach 10 times the diameter of the main reinforcement cage 31; when double-sided welding of the steel bar is performed, the welding length must reach 5 times the diameter of the main reinforcement cage 31.

[0057] Next, step S6 is executed to hoist the lattice column 2 and the steel cage as a whole, pull out the shoulder pole, and slowly lower them to the designed elevation to complete the connection and installation of the lattice column 2 and the steel cage.

[0058] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0059] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A connecting device for connecting a lattice column and a steel cage, characterized in that: include: Two connection assemblies, each connection assembly (10) comprises: an arc-shaped plate (101), a chord plate (102), at least two bolt holes (103) and a fixing member (104) matched with the bolt holes (103), the two ends of the chord plate (102) abut against the arc-shaped plate (101), and the bolt holes (103) are opened on the chord plate (102).

2. The connecting device for connecting a lattice column and a steel cage according to claim 1, characterized in that: The outer diameter of the arc-shaped plate (101) is equal to the inner diameter of the steel cage.

3. The connecting device for connecting a lattice column and a steel cage according to claim 2, characterized in that: The arc-shaped plate (101) is a semicircular arc-shaped steel plate.

4. The connecting device for connecting a lattice column and a steel cage according to any one of claims 1 to 3, characterized in that: The fixing member comprises: a high-strength bolt and a matching nut.

5. The connecting device for connecting a lattice column and a steel cage according to any one of claims 1 to 3, characterized in that: The number of the bolt holes (103) is two.

6. A method for connecting a lattice column and a steel cage, characterized in that: The steps include: The steel cage (3) is hoisted and lowered until the main reinforcement (31) of the steel cage reaches a predetermined elevation, and the steel cage is temporarily stabilized; After the lattice column (2) is lifted and inserted into the steel cage (3) to the designed elevation, the verticality and plane position of the lattice column (2) are adjusted; According to the specifications of the lattice column (3) and the steel cage (2), a connecting device (1) as described in any one of claims 1 to 4 is selected to match them, and according to the bolt holes (103) opened on the chord plate (102) of the connecting device (1), bolt holes of the same specifications are opened on two oppositely distributed tie plates (21) at the same elevation of the lattice column and the top of the steel cage; The two connection components of the connection device are arranged opposite to each other so as to be located between the main reinforcement (31) of the steel cage and the lattice column, and the bolt holes (103) on the two chord plates (102) of the connection device are respectively aligned with the bolt holes on the two oppositely distributed tie plates (21) of the lattice column, and the bolt holes (103) on the tie plates (21) and the chord plates (102) are bolted together based on the fixing components to establish the connection between the connection device and the lattice column; Welding the arc-shaped plate (101) of the connecting device to the main reinforcement (31) of the reinforcement cage on its outer side to establish a connection between the connecting device and the reinforcement cage; Lift the lattice column and the steel cage as a whole, pull out the shoulder pole, and slowly lower them to the designed elevation to complete the connection and installation of the lattice column and the steel cage.

7. The method for connecting a lattice column and a steel cage according to claim 6, characterized in that: The following steps are involved in selecting a matching connection device according to the specifications of the lattice column and the reinforcement cage: A connecting device is selected according to the inner diameter of the steel cage, wherein the outer diameter of the arc-shaped plate (101) of the selected connecting device is equal to the inner diameter of the steel cage; The connection device is selected according to the distance between the lattice column and the same elevation position of the top of the steel cage, and the distance between the chord plate (102) and the arc plate (101) of the selected connection device is equal to the distance between the lattice column and the same elevation position of the top of the steel cage.

8. The method for connecting a lattice column and a steel cage according to claim 6, characterized in that: The method of opening bolt holes of the same specification on two relatively distributed tie plates (21) at the same elevation of the lattice column and the top of the steel cage according to the bolt holes (103) opened on the chord plate (102) of the connecting device comprises the following steps: Obtaining the size of the bolt hole (103) on the chord plate and the spacing data between two adjacent bolt holes (103); According to the obtained size of the bolt hole (103) on the chord plate and the spacing data, bolt holes with the same specifications are opened on two relatively distributed tie plates (21) at the same elevation of the lattice column and the top of the steel cage.

9. The method for connecting a lattice column and a steel cage according to claim 6, characterized in that: The welding of the arc-shaped plate (101) of the connecting device with the main reinforcement (31) of the reinforcement cage outside the arc-shaped plate (101) comprises the following steps: When performing single-sided welding of the steel bars, the welding length should be 10 times the diameter of the main reinforcement (31) of the steel cage; When double-sided welding of the steel bar is performed, the welding length should reach 5 times the diameter of the main reinforcement (31) of the steel cage.

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