Assembly type steel structure auxiliary connecting system

Abstract

The utility model belongs to the technical field of assembly type steel truss auxiliary connection nodes, particularly relates to an assembly type steel structure auxiliary connection system, and aims to solve the problem of node stress concentration when an assembly type steel structure cooling tower is assembled. The grouting device comprises a lower sleeve filled with grouting materials and an upper inserting rod with one end inserted into the lower sleeve. The lower sleeve is fixed on a lower-layer component; and the upper inserting rod is fixed on a component on the upper layer. According to the utility model, the problem of stress concentration of the assembly type node of the assembly type steel structure cooling tower can be well solved, the stress of the structural load on the main node, especially the vertical pressure, can be effectively shared, and the vertical bearing of the sleeve grouting node has obvious advantages.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary connection nodes of assembled steel trusses, and specifically relates to an auxiliary connection system of assembled steel structures. Background Art

[0002] The steel structure cooling tower is mainly formed by splicing and fixing multiple triangular brackets during construction, and during the splicing process, the corners of the three triangular brackets are connected together.

[0003] When the triangular brackets are connected together, an assembled bolting method is generally used, and the corners of the three triangular brackets are connected together, which will cause stress concentration problems at the connection points, and easily cause the triangular brackets to undergo sudden changes in shape. Utility Model Content

[0004] In order to solve the above-mentioned problem in the prior art, namely, the problem of stress concentration at nodes when assembling an assembled steel structure cooling tower, the utility model provides an assembled steel structure auxiliary connection system.

[0005] The present application discloses an auxiliary connection system for assembled steel structures, which adopts the following technical solutions:

[0006] An assembled steel structure auxiliary connection system comprises a lower casing filled with grouting material and an upper plug rod with one end inserted into the lower casing;

[0007] The lower sleeve is fixed on the component of the lower layer; the upper insertion rod is fixed on the component of the upper layer.

[0008] By adopting the above technical solution, the lower sleeve and the upper socket rod are pre-fixed on the upper and lower hoisted components. When installing the upper hoisting unit, the lower unit has been installed and the lower sleeve has been completely fixed. The upper plug rod slowly descends with the hoisting unit and is inserted into the lower sleeve to complete the connection of the connection system. After the main node is installed, the grouting material is injected into the lower sleeve and cured. After the grouting material solidifies, the connection between the lower sleeve and the upper plug rod is strengthened. By setting up a connection system, the stress of the structural load on the main node can be effectively shared, especially the vertical pressure. The sleeve grouting node has obvious advantages in vertical bearing.

[0009] Optionally, a lower connecting plate is fixedly connected to the lower side of the lower sleeve, and the lower sleeve is connected to the lower component via the lower connecting plate; the lower connecting plate seals the lower end of the lower sleeve.

[0010] By adopting the above technical solution, the lower connecting plate seals the lower end of the lower casing, so that the grouting material filled in the lower casing will not flow out from the lower side of the lower casing.

[0011] Optionally, the edge of the lower connecting plate exceeds the edge of the lower sleeve.

[0012] By adopting the above technical solution, when the lower connecting plate is connected to the lower component, the portion of the lower connecting plate that extends beyond the lower sleeve can be used as a force point for connecting the lower connecting plate and the lower component, and can be connected by bolts, so that the lower sleeve can be conveniently installed on the lower component without welding.

[0013] Optionally, a tensile member is provided on the outer wall of the upper insertion rod.

[0014] By adopting the above technical solution, the tensile member increases the anti-pulling effect between the upper plug rod and the solidified grouting material, so that the upper plug rod is not easy to fall out of the lower casing.

[0015] Optionally, the tensile member is configured to be ring-shaped.

[0016] By adopting the above technical solution, the grouting material can wrap the tensile member in both the inner and outer directions, thereby increasing the strength of the connection between the tensile member and the grouting material.

[0017] Optionally, the ring opening of the tensile member faces the horizontal direction.

[0018] By adopting the above technical solution, when the grouting material wraps the tensile member, the tensile member can be more restricted.

[0019] Optionally, an upper connecting plate is fixedly connected to the upper side of the upper plug rod, and the upper plug rod is connected to the upper component via the upper connecting plate.

[0020] By adopting the above technical solution, it is convenient to connect the upper plug rod with the upper component.

[0021] Optionally, the edge of the upper connecting plate exceeds the edge of the upper insertion rod.

[0022] By adopting the above technical solution, when the upper connecting plate is connected to the upper component, the portion of the upper connecting plate that extends beyond the upper plug rod can be used as a force point for connecting the upper connecting plate and the upper component, and can be connected by bolts, so that the upper plug rod can be conveniently installed on the upper component without welding.

[0023] Optionally, the upper insertion rod is tubular.

[0024] By adopting the above technical solution, when the grouting material is injected into the lower casing, the grouting material can enter the upper plug rod, increasing the contact area between the upper plug rod and the grouting material, so that the upper plug rod can be firmly arranged in the lower casing.

[0025] Beneficial effects of the utility model: the auxiliary node solution proposed in the present application solves the stress concentration problem of the assembled nodes of the assembled steel structure cooling tower well. The auxiliary node can effectively share the stress of the structural load on the main node, especially the vertical pressure. The sleeve grouting node has obvious advantages in vertical bearing, and the on-site operation avoids welding and fire, which is more environmentally friendly. At the same time, the node has good adaptability and can flexibly adjust the sleeve size according to the on-site installation accuracy to make adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 Schematic diagram of the auxiliary connection system of the assembled steel structure in this embodiment;

[0028] Figure 2 Schematic diagram of the structure of the auxiliary connection system of the prefabricated steel structure in this embodiment.

[0029] Explanation of the reference numerals: 1. lower sleeve; 11. lower connecting plate; 2. upper plug rod; 21. tensile member; 22. upper connecting plate. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the relevant utility model are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] The utility model provides an auxiliary connection system for assembled steel structures. Figure 1 The prefabricated steel structure auxiliary connection system includes a lower casing 1 filled with grouting material and an upper plug rod 2 with one end inserted into the lower casing 1.

[0033] Reference Figure 1 , Figure 2The lower sleeve 1 is fixed on the lower component, and the lower side of the lower sleeve 1 is fixedly connected with a lower connecting plate 11, and the lower sleeve 1 is connected to the lower component through the lower connecting plate 11. The lower connecting plate 11 seals the lower end of the lower sleeve 1, so that the grouting material filled in the lower sleeve 1 will not flow out from the lower side of the lower sleeve 1. In addition, the edge of the lower connecting plate 11 is set to exceed the edge of the lower sleeve 1, so that when the lower connecting plate 11 is connected to the lower component, the part of the lower connecting plate 11 that exceeds the lower sleeve 1 can be used as the force application point for connecting the lower connecting plate 11 with the lower component, and can be connected by bolts, so that the lower sleeve 1 can be conveniently installed on the lower component without welding.

[0034] The grouting material may be concrete, which reinforces the connection between the lower sleeve 1 and the upper plug rod 2 when solidified.

[0035] The upper plug rod 2 is tubular as a whole. When the grouting material is injected into the lower casing 1, the grouting material can enter the upper plug rod 2, increasing the contact area between the upper plug rod 2 and the grouting material, so that the upper plug rod 2 can be firmly arranged in the lower casing 1.

[0036] A tensile member 21 is provided on the outer wall of the upper plug rod 2 , and the tensile member 21 increases the tensile resistance between the upper plug rod 2 and the solidified grouting material, so that the upper plug rod 2 is not easy to escape from the lower casing 1 .

[0037] The tensile member 21 is arranged in a ring shape, and the ring opening of the tensile member 21 faces the horizontal direction, so that the grouting material can wrap the tensile member 21 in both the inner and outer directions, thereby increasing the strength of the connection between the tensile member 21 and the grouting material.

[0038] The upper plug rod 2 is fixed on the upper component, and the upper side of the upper plug rod 2 is fixedly connected with the upper connecting plate 22, and the upper plug rod 2 is connected to the upper component through the upper connecting plate 22. The upper connecting plate 22 closes the upper end of the upper plug rod 2. In addition, the edge of the upper connecting plate 22 is set to exceed the edge of the upper plug rod 2, so that when the upper connecting plate 22 is connected to the upper component, the part of the upper connecting plate 22 that exceeds the upper plug rod 2 can be used as a force application point for the connection between the upper connecting plate 22 and the upper component, and a bolt connection can be provided, so that the upper plug rod 2 can be conveniently installed on the upper component without welding.

[0039] The lower casing 1 and the upper socket rod are pre-fixed on the upper and lower hoisted components. When installing the upper hoisting unit, the lower unit has been installed and the lower casing 1 has been completely fixed. The upper plug rod 2 slowly descends with the hoisting unit and is inserted into the lower casing 1 to complete the connection of the connection system. After the main node is installed, the grouting material is injected into the lower casing 1 and cured. After the grouting material solidifies, it strengthens the connection between the lower casing 1 and the upper plug rod 2. By setting up a connection system, the stress of the structural load on the main node can be effectively shared, especially the vertical pressure. The sleeve grouting node has obvious advantages in vertical bearing.

[0040] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0041] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. An auxiliary connection system for assembled steel structures, characterized in that: It comprises a lower casing (1) filled with grouting material and an upper insertion rod (2) with one end inserted into the lower casing (1); The lower sleeve (1) is fixed on the component of the lower layer; the upper insertion rod (2) is fixed on the component of the upper layer.

2. The prefabricated steel structure auxiliary connection system according to claim 1, characterized in that: A lower connecting plate (11) is fixedly connected to the lower side of the lower sleeve (1), and the lower sleeve (1) is connected to the lower component via the lower connecting plate (11); the lower connecting plate (11) seals the lower end of the lower sleeve (1).

3. The auxiliary connection system for assembled steel structures according to claim 2, characterized in that: The edge of the lower connecting plate (11) exceeds the edge of the lower sleeve (1).

4. The prefabricated steel structure auxiliary connection system according to claim 1, characterized in that: A tensile member (21) is provided on the outer wall of the upper insertion rod (2).

5. The auxiliary connection system for assembled steel structure according to claim 4, characterized in that: The tensile member (21) is arranged in a ring shape.

6. The auxiliary connection system for assembled steel structure according to claim 5, characterized in that: The ring opening of the tensile member (21) faces the horizontal direction.

7. The prefabricated steel structure auxiliary connection system according to claim 1, characterized in that: An upper connecting plate (22) is fixedly connected to the upper side of the upper plug rod (2), and the upper plug rod (2) is connected to the upper layer component via the upper connecting plate (22).

8. The auxiliary connection system for assembled steel structures according to claim 7, characterized in that: The edge of the upper connecting plate (22) exceeds the edge of the upper inserting rod (2).

9. The prefabricated steel structure auxiliary connection system according to claim 7, characterized in that: The upper insertion rod (2) is tubular.

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