CN219753517U - Cable and steel pipe connection node - Google Patents

Abstract

The utility model provides a connection node between a cable and a steel pipe, which relates to the field of steel structures and includes a steel pipe, an inner pipe, a lower sealing plate, an upper sealing plate and several groups of external stiffening plates, connecting plates and cables. The steel pipe, lower sealing plate The plate, inner tube and upper sealing plate are connected in sequence from bottom to top. A number of the external stiffening plates are arranged outside the inner tube and distributed at different angles around its center. The upper and lower sides of the external stiffening plate are connected with the upper sealing plate and the lower sealing plate. The plates are connected, the sum of the radius of the inner tube and the width of the outer stiffening plate is less than or equal to the radius of the steel pipe, the connecting plates are arranged one by one on the outer stiffening plate, and the stay cables are hinged on the connecting plates one by one. The cable is connected to the steel pipe node, the size of the inner pipe at the cable connection is reduced, and the connecting plate connecting the cable is built between the upper and lower sealing plates. The upper and lower sealing plates are welded to the upper and lower ends of the connecting plate to ensure that the tensile force in the node area is effective. Transferred to the steel pipe, on the premise of ensuring the tensile strength, the size of the connection node between the cable and the steel pipe is reduced, and the node is beautiful and practical.

Description

A cable-to-steel pipe connection node

Technical field

The utility model relates to the technical field of steel structures, and is specifically a connection node between a cable and a steel pipe.

Background technique

In prestressed structures, it is a common connection method to use ear plates to connect cables and steel members. The design of ear plates mainly includes ear plates welded on the outer surface of steel members, ear plates using cast steel nodes, etc. These two The connection method has certain shortcomings in some prestressed structural systems. The ear plate connection on the outer surface of the steel component results in a node size that is too large, which affects the appearance. When the ear plate is made of cast steel, the node weight is large and the cost is high. .

Therefore, it is necessary to study a node connection method that is simple to produce, safe and reliable, and can take into account the beauty of the nodes and economy.

Utility model content

(1) Technical problems solved

In view of the shortcomings of the existing technology, the present utility model provides a connection node between a cable and a steel pipe, which solves the problems raised in the above background technology.

(2) Technical solutions

In order to achieve the above objectives, the utility model is realized through the following technical solutions: a cable-to-steel pipe connection node, including a steel pipe, an inner pipe, a lower sealing plate, an upper sealing plate and several sets of external stiffening plates, connecting plates and cables. The steel pipe, lower sealing plate, inner tube, and upper sealing plate are connected in sequence from bottom to top. Several of the external stiffening plates are arranged outside the inner tube and distributed at different angles around its center. The upper and lower surfaces of the external stiffening plates are connected to The upper sealing plate and the lower sealing plate are connected. The sum of the radius of the inner tube and the width of the outer stiffening plate is less than or equal to the radius of the steel pipe. The connecting plates are arranged one by one on the outer stiffening plate, and the cables are hinged on the connecting plates one by one. superior.

Preferably, an inner stiffening plate is provided at the bottom of the lower sealing plate in the steel pipe.

Preferably, the radius of the inner tube is half of the radius of the steel tube.

Preferably, the steel pipe is a round steel pipe or a rectangular steel pipe.

Preferably, the pulling cable is hinged on the connecting plate through an anchor.

Preferably, the pulling cable is a PE cable or a pickaxe vanadium cable.

(3) Beneficial effects

The utility model provides a connection node between a cable and a steel pipe. It has the following beneficial effects:

1. The cable is connected to the steel pipe node. The size of the inner pipe at the cable connection is reduced, and the connecting plate connecting the cable is built between the upper and lower sealing plates. The upper and lower sealing plates are welded to the upper and lower ends of the connecting plate to ensure the joint area. The tensile force is effectively transmitted to the steel pipe. On the premise of ensuring the tensile strength, the size of the connection node between the cable and the steel pipe is reduced, and the node is beautiful and practical.

Description of the drawings

Figure 1 is an isometric view of the utility model;

Figure 2 is a front cross-sectional view of the utility model;

Figure 3 is a top cross-sectional view of the utility model.

In the picture: 1 connecting plate, 2 steel pipe, 3 cable, 4 inner tube, 5 external stiffening plate, 6 lower sealing plate, 8 anchor, 7 upper sealing plate, 9 inner stiffening plate.

Detailed ways

The embodiment of the utility model provides a connection node between a cable and a steel pipe, as shown in Figure 1-3, including a steel pipe 2, an inner pipe 4, a lower sealing plate 6, an upper sealing plate 7 and several sets of external stiffening plates 5 and connecting plates. 1 and cable 3.

The steel pipe 2 is a pressure-bearing member of a prestressed structure, and can be a round steel pipe or a rectangular steel pipe. The cross-section size of the steel pipe 2 is determined based on the calculated stress of the prestressed structure.

As shown in Figure 2, the cable 3 is a tension member of the prestressed structure. The cable 3 is a PE cable or a vanadium cable. The cross-section size of the cable 3 is determined based on the calculated stress of the prestressed structure. The cable 3 is hinged to the connecting plate 1 through the anchor 8 . The connecting plate 1 is the key component connecting the cable 3 and the steel pipe 2.

As shown in Figure 3, the steel pipe 2, lower sealing plate 6, inner pipe 4, and upper sealing plate 7 are connected in sequence from bottom to top. Several external stiffening plates 5 are arranged outside the inner pipe 4 and distributed at different angles around its center. The upper and lower sides of the stiffening plate 5 are connected to the upper sealing plate 7 and the lower sealing plate 6. The inner end of the outer stiffening plate 5 is welded to the inner tube 4. The connecting plate 1 and the outer stiffening plate 5, the inner steel pipe 4, the upper sealing plate 7 and the lower The sealing plate 6 is assembled into the entire node through welding, and the lower sealing plate 6 is connected to the steel pipe 2 through welding. In order to ensure that the internal force in the node area is effectively transmitted to the steel pipe 2, an internal stiffening plate 9 is provided at the bottom of the lower sealing plate 6 in the steel pipe 2. The connecting plates 1 are arranged on the external stiffening plates 5 one by one.

The sum of the radius of the inner tube 4 and the width of the outer stiffening plate 5 is less than or equal to the radius of the steel tube 2 . The external stiffening plate 5 is embedded between the upper sealing plate 7 and the lower sealing plate 6, so that the size of the connection node between the cable 3 and the steel pipe 2 is reduced, and the node is beautiful. The preferred radius of inner tube 4 is half of the radius of steel tube 2. The radius of the inner tube 4 can also be less than half of the steel tube 2. The increased width of the external stiffening plate 5 can improve the stress bearing capacity and enhance the connection strength of the cable nodes.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A cable and steel pipe connected node, its characterized in that: including steel pipe (2), inner tube (4), lower shrouding (6), go up shrouding (7) and a plurality of outer strong board (5) of group, connecting plate (1) and cable (3), steel pipe (2), lower shrouding (6), inner tube (4), go up shrouding (7) and link to each other from bottom to top in proper order, a plurality of outer strong board (5) set up outside inner tube (4) and around its center according to different angular distribution, the upper and lower two sides of outer strong board (5) link to each other with last shrouding (7), lower shrouding (6), the radius of inner tube (4) and the sum of outer strong board (5) width less than or equal to the radius of steel pipe (2), connecting plate (1) one-to-one sets up on outer strong board (5), cable (3) one-to-one articulates on connecting plate (1).

2. A cable and steel pipe connection node according to claim 1, characterized in that: an inner stiffening plate (9) is arranged at the bottom of the lower sealing plate (6) in the steel pipe (2).

3. A cable and steel pipe connection node according to claim 1, characterized in that: the radius of the inner pipe (4) is half of that of the steel pipe (2).

4. A cable and steel pipe connection node according to claim 1, characterized in that: the steel pipe (2) is a round steel pipe or a rectangular steel pipe.

5. A cable and steel pipe connection node according to claim 1, characterized in that: the inhaul cable (3) is hinged on the connecting plate (1) through an anchor (8).

6. A cable and steel pipe connection node according to claim 5, wherein: the inhaul cable (3) is a PE cable or a pickaxe vanadium cable.