High-strength steel column base connection structure

By introducing a sealing box and rotating cap design into the high-strength steel column base connection structure, the problems of oxidation, rust, and loosening of anchor bolts and nuts were solved, thereby improving the protection and safety of the structure.

CN224412805UActive Publication Date: 2026-06-26CHENGDU LINGFENG ARCHITECTURAL DESIGN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU LINGFENG ARCHITECTURAL DESIGN CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Common high-strength steel column base connection structures are prone to oxidation and rust under long-term use, and nuts may loosen, posing safety hazards.

Method used

The structure employs a sealing box, a first sealing plate, and a second sealing plate, combined with a rotating cap and arrow design to prevent liquid from entering and to allow for direct observation of the nut's looseness, thereby enhancing connection stability.

Benefits of technology

It effectively prevents anchor bolts and nuts from oxidizing and rusting, ensures the stability and reliability of the connection structure, facilitates the detection of loose nuts, and reduces safety risks.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of building construction discloses a high -strength steel column column foot connecting structure, including steel column body, a plurality of rotating cap, sealing box, first sealing plate and second sealing plate, the steel column body outer wall lower end face fixedly set up trapezoidal stiffening rib, trapezoidal stiffening rib outer wall front and rear end and outer wall both sides all are set up first hole, a plurality of rotating cap upper end face all are fixedly set up arrow, a plurality of rotating cap lower end face all are set up hexagon hole, sealing box inner bottom surface sets up a plurality of second hole, first sealing plate and second sealing plate upper end face all set up a plurality of third hole, first sealing plate and second sealing plate lower end face all are fixedly set up second sealing pad, in the utility model, the device can effectively avoid nut and anchor bolt oxidation rust, still can more directly observe whether the nut is loose.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a high-strength steel column base connection structure. Background Technology

[0002] High-strength steel column base connection structures are the connection nodes between steel columns and foundations or substructures, transferring the column load and ensuring the stability and reliability of the structure. This connection structure directly affects the overall structural load-bearing performance and construction convenience. High-strength column bases can transmit greater axial forces, bending moments, and shear forces, making them suitable for high-load scenarios such as stadiums, airport terminals, and super high-rise buildings.

[0003] However, common high-strength steel column base connection structures, under long-term use, are prone to oxidation, causing anchor bolts or nuts to rust and affecting their service life. Furthermore, if these common high-strength steel column base connection structures are exposed to environments with prolonged vibration, the nuts may loosen, posing a safety risk if not detected and addressed promptly.

[0004] Therefore, this application provides a high-strength steel column base connection structure to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength steel column base connection structure. This device can effectively prevent the nuts and anchors from oxidizing and rusting, and also allows for more intuitive observation of whether the nuts are loose.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-strength steel column base connection structure includes a steel column body, multiple rotating caps, a sealing box, a first sealing plate, and a second sealing plate. A trapezoidal stiffening rib is fixedly provided on the lower end face of the outer wall of the steel column body. First holes are provided at the front and rear ends and on both sides of the outer wall of the trapezoidal stiffening rib. Arrows are fixedly provided on the upper end faces of the multiple rotating caps, and hexagonal holes are provided on the lower end faces of the multiple rotating caps. Multiple second holes are provided on the inner bottom surface of the sealing box. Multiple third holes are provided on the upper end faces of both the first and second sealing plates. Second sealing gaskets are fixedly provided on the lower end faces of both the first and second sealing plates. A steel column groove is provided on one side of the outer wall of the first sealing plate. First sealing gaskets are fixedly provided on the inner walls at the front and rear ends and on one side of the inner wall of the steel column groove, and on one side of the outer wall of the second sealing plate.

[0008] Furthermore, a first fixing block is fixedly provided on the other side of the outer wall at both the front and rear ends of the first sealing plate, and a second fixing block is fixedly provided on the other side of the outer wall at both the front and rear ends of the second sealing plate.

[0009] Furthermore, internal threads are provided on one side of the outer wall of both first fixing blocks and both second fixing blocks. One of the first fixing blocks and one of the second fixing blocks form a group, and the other of the first fixing blocks and the other of the second fixing blocks form a group. Bolts are threaded onto the two internal threads in each group of the two first fixing blocks and the two second fixing blocks.

[0010] Furthermore, anchor bolts are slidably disposed inside the multiple second holes, the trapezoidal stiffening ribs are slidably disposed inside the sealing box, and the multiple first holes are respectively slidably disposed around the multiple anchor bolts. Nuts are threaded onto the upper end face of the outer wall of the multiple anchor bolts, and the multiple nuts are respectively located on the upper end face of the multiple first holes.

[0011] Furthermore, the front and rear corners of the upper surface of the first sealing plate on the side near the outer wall and the front and rear corners of the upper surface of the second sealing plate on the other side near the outer wall are both fixedly connected to the sealing box by bolts.

[0012] Furthermore, the plurality of nuts are slidably disposed inside the plurality of hexagonal holes, and the upper ends of the outer walls of the plurality of rotating caps are slidably disposed inside the plurality of third holes.

[0013] Furthermore, acrylic plates are fixedly installed on the upper end face of the inner wall of each of the third holes.

[0014] This utility model has the following beneficial effects:

[0015] 1. The present invention proposes a high-strength steel column base connection structure. When using this high-strength steel column base connection structure, the sealing box, the first sealing plate and the second sealing plate can effectively prevent liquid from entering the interior, and can also prevent internal air circulation and sunlight exposure, and can effectively prevent anchor bolts and nuts from oxidizing and rusting.

[0016] 2. The present invention proposes a high-strength steel column base connection structure. When using this high-strength steel column base connection structure, multiple rotating caps are inserted into the upper ends of multiple nuts respectively. Each rotating cap has an arrow on its upper surface. During inspection, the looseness of the nuts can be checked by observing whether the arrow rotates. Attached Figure Description

[0017] Figure 1 This is an overall isometric schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the steel column body connection structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the rotating cap connection structure of this utility model;

[0020] Figure 4 This is a top view of the sealing box of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the first sealing plate and the second sealing plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the anchor bolt connection structure of this utility model.

[0023] Legend:

[0024] 101. Steel column body; 102. Trapezoidal stiffening rib; 103. First hole; 104. Hexagonal hole; 105. Arrowhead; 106. Rotating cap; 107. Sealing box; 108. Second hole; 109. First sealing plate; 110. Second sealing plate; 111. Third hole; 112. Steel column groove; 113. First fixing block; 114. Second fixing block; 115. First sealing gasket; 116. Second sealing gasket; 117. Anchor bolt; 118. Nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6This utility model provides an embodiment of a high-strength steel column base connection structure, comprising a steel column body 101, multiple rotating caps 106, a sealing box 107, a first sealing plate 109, and a second sealing plate 110. A trapezoidal stiffening rib 102 is fixedly provided on the lower end face of the outer wall of the steel column body 101. First holes 103 are provided at the front and rear ends and on both sides of the outer wall of the trapezoidal stiffening rib 102. Arrowheads 105 are fixedly provided on the upper end faces of the multiple rotating caps 106, and hexagonal holes 104 are provided on the lower end faces of the multiple rotating caps 106. Multiple nuts 118 are slidably disposed in the multiple hexagonal holes. Inside 104, multiple rotating caps 106 are slidably disposed inside multiple third holes 111 near the upper end of the outer wall. Multiple second holes 108 are opened on the bottom surface of the inner side of the sealing box 107. Multiple third holes 111 are opened on the upper end surfaces of the first sealing plate 109 and the second sealing plate 110. Second sealing gaskets 116 are fixedly disposed on the lower end surfaces of the first sealing plate 109 and the second sealing plate 110. A steel column groove 112 is opened on one side of the outer wall of the first sealing plate 109. The inner walls of the front and rear ends and one side of the inner wall of the steel column groove 112 are fixedly disposed with the first sealing gaskets 115 on one side of the outer wall of the second sealing plate 110.

[0027] Specifically, when using this connection structure, the sealing box 107 is first slid vertically downwards, and multiple anchor bolts 117 are slid inside the second hole 108. The steel column body 101 and the trapezoidal stiffening rib 102 are then vertically placed inside the sealing box 107, and multiple anchor bolts 117 are slid inside the first hole 103. Then, multiple nuts 118 are threaded onto the multiple anchor bolts 117 at the upper end of the multiple first holes 103, and multiple rotating caps 106 are placed on the multiple nuts 118. The multiple nuts 118 are then placed inside the multiple hexagonal holes 104. The first sealing plate 109 and the second sealing plate 110 are placed on both sides of the outer wall of the steel column body 101, and both the first sealing plate 109 and the second sealing plate 110 are placed on the upper end of the sealing box 107. The steel column groove 112 is tightly attached to the steel column body 101, and the upper surfaces of multiple rotating caps 106 are placed inside multiple third holes 111. The two sets of first fixing blocks 113 and second fixing blocks 114 are fastened with two bolts. Then, the first sealing plate 109 and the second sealing plate 110 are fastened to the sealing box 107 with multiple bolts. The trapezoidal stiffening ribs 102 can more effectively enhance stability and reliability. The arrow 105 on the rotating cap 106 can be used to visually observe whether the nut 118 is loose or rotating. If the angle of the arrow 105 changes, it means that the nut 118 is loose and rotating. If the angle of the arrow 105 is normal, it means that the nut 118 is not loose. The hexagonal hole 104 allows for better connection with the nut 118. As long as the nut 118 is rotated, the rotating cap 106 will rotate. The first sealing plate 109 and the second sealing plate 110 can block the sun. The first sealing gasket 115 and the second sealing gasket 116 can prevent liquid from entering and also prevent the internal air from circulating with the external air.

[0028] Reference Figure 1 , Figure 5 , Figure 6 First fixing blocks 113 are fixedly installed on the other side of the outer wall at both ends of the first sealing plate 109. Second fixing blocks 114 are fixedly installed on the other side of the outer wall at both ends of the second sealing plate 110. Internal threads are opened on the outer wall of both the two first fixing blocks 113 and the two second fixing blocks 114. One of the two first fixing blocks 113 and one of the two second fixing blocks 114 form a group, and the other one of the two first fixing blocks 113 and the other one of the two second fixing blocks 114 form a group. Two internal threads in each group of the two first fixing blocks 113 and the two second fixing blocks 114 are threaded with bolts. The front and rear corners of the upper end face of the first sealing plate 109 on the side of the outer wall and the front and rear corners of the upper end face of the second sealing plate 110 on the other side of the outer wall are fixedly connected to the sealing box 107 by bolts. Acrylic plates are fixedly installed on the upper end face of the inner wall of the multiple third holes 111.

[0029] Specifically, the two first fixing blocks 113 and the two second fixing blocks 114 are divided into two groups. The internal threads of each group are connected by bolt threads to fasten the first sealing plate 109 and the second sealing plate 110 together. By fixing the first sealing plate 109 and the second sealing plate 110 to the sealing box 107 with multiple bolts, gaps at the connection point can be avoided. The arrow 105 at the top of the rotating cap 106 can be directly observed through the acrylic plate, while also preventing liquid from entering the interior.

[0030] Reference Figure 1 , Figure 2 , Figure 4 , Figure 6 Anchor bolts 117 are slidably installed inside the multiple second holes 108. Trapezoidal stiffening ribs 102 are slidably installed inside the sealing box 107, and multiple first holes 103 are slidably installed around the multiple anchor bolts 117. Nuts 118 are threaded onto the upper end face of the outer wall of the multiple anchor bolts 117, and the multiple nuts 118 are located on the upper end face of the multiple first holes 103.

[0031] Specifically, multiple anchor bolts 117 are slid into multiple second holes 108 and first holes 103 respectively, and then connected by multiple nuts 118 threaded together, so that the sealing box 107 and trapezoidal stiffening ribs 102 are more firmly connected to the concrete and are less likely to loosen.

[0032] Working principle: When using this connection structure, the sealing box 107 is placed vertically from top to bottom. Multiple second holes 108 are slid around the anchor bolts 117. Then, the steel column body 101 and trapezoidal stiffening ribs 102 are placed inside the sealing box 107, and the anchor bolts 117 are slid into the first holes 103 and secured with nuts 118. Rotating caps 106 are placed on top of the nuts 118, ensuring they are positioned inside the hexagonal holes 104. First sealing plates 109 and 110 are placed on top of the sealing box 107, located on both sides of the outer wall of the steel column body 101. The upper outer walls of the rotating caps 106 are placed inside the third holes 111. The first sealing plates 109 and 110 are secured with two bolts, and then the first sealing plates 109 and 110 are secured to the sealing box 107 with multiple bolts. By rotating the arrow 105 on the cap 106, it can be observed whether the nut 118 is rotating. The first sealing gasket 115 and the second sealing gasket 116 can prevent liquid from entering the interior and prevent the flow of internal and external gases.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength steel column base connection structure, comprising a steel column body (101), multiple rotating caps (106), a sealing box (107), a first sealing plate (109), and a second sealing plate (110), characterized in that: The steel column body (101) has a trapezoidal stiffening rib (102) fixedly installed on the lower end face of its outer wall. The trapezoidal stiffening rib (102) has first holes (103) at its front and rear ends and on both sides of its outer wall. Multiple rotating caps (106) have arrows (105) fixedly installed on their upper ends. Multiple rotating caps (106) have hexagonal holes (104) on their lower ends. The sealing box (107) has multiple second holes (108) on its inner bottom surface. The first sealing... Multiple third holes (111) are provided on the upper end face of the sealing plate (109) and the second sealing plate (110). A second sealing gasket (116) is fixedly provided on the lower end face of the first sealing plate (109) and the second sealing plate (110). A steel column groove (112) is provided on one side of the outer wall of the first sealing plate (109). A first sealing gasket (115) is fixedly provided on the inner wall of the front and rear ends and one side of the inner wall of the steel column groove (112) and one side of the outer wall of the second sealing plate (110).

2. The high-strength steel column base connection structure according to claim 1, characterized in that: The first sealing plate (109) has a first fixing block (113) fixedly installed on the other side of the outer wall at both the front and rear ends. The second sealing plate (110) has a second fixing block (114) fixedly installed on the other side of the outer wall at both the front and rear ends.

3. The high-strength steel column base connection structure according to claim 2, characterized in that: The outer walls of the two first fixing blocks (113) and the two second fixing blocks (114) are provided with internal threads. One of the two first fixing blocks (113) and one of the two second fixing blocks (114) form a group, and the other of the two first fixing blocks (113) and the other of the two second fixing blocks (114) form a group. The two internal threads in each group of the two first fixing blocks (113) and the two second fixing blocks (114) are threaded with bolts.

4. The high-strength steel column base connection structure according to claim 1, characterized in that: Anchor bolts (117) are slidably disposed inside the multiple second holes (108). The trapezoidal stiffening ribs (102) are slidably disposed inside the sealing box (107), and multiple first holes (103) are slidably disposed around the multiple anchor bolts (117). Nuts (118) are threaded onto the upper end face of the outer wall of the multiple anchor bolts (117), and the multiple nuts (118) are located on the upper end face of the multiple first holes (103).

5. The high-strength steel column base connection structure according to claim 1, characterized in that: The front and rear corners of the upper end face of the first sealing plate (109) on the side near the outer wall and the front and rear corners of the upper end face of the second sealing plate (110) on the other side near the outer wall are both fixedly connected to the sealing box (107) by bolts.

6. The high-strength steel column base connection structure according to claim 4, characterized in that: Multiple nuts (118) are slidably disposed inside multiple hexagonal holes (104), and multiple rotating caps (106) are slidably disposed inside multiple third holes (111) near the upper end of their outer walls.

7. The high-strength steel column base connection structure according to claim 1, characterized in that: Acrylic plates are fixedly installed on the upper end face of the inner wall of each of the third holes (111).