Hidden steel column base

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a hidden type steel column base which comprises a base and a steel column body and further comprises foundation bolts and fixing nuts, the foundation bolts are arranged in the reinforced concrete base, the upper ends of the foundation bolts are hidden in the steel column base, and the steel column body is hollow. Connecting holes allowing the foundation bolts to be installed are formed in a bottom plate of the steel column body, a sealing plate is arranged on the side wall of the steel column body, and installing grooves allowing the sealing plate to be clamped are correspondingly formed in the side wall of the steel column body.

Description

Technical Field

[0001] The present application relates to the technical field of construction engineering, and particularly relates to a concealed steel column base. Background Art

[0002] In construction engineering, as an important component connecting the steel structure and the foundation, the performance of the steel column base directly affects the stability and safety of the entire structure.

[0003] In the currently common connection of steel column bases, the steel column base and the base are mainly connected by embedded anchor bolts and nuts. Specifically, the base bolts are pre-cast in the base, and a bottom plate is fixed at the bottom of the steel column base. When the steel column base is placed on the base, the bottom plate abuts against the base, and the upper end of the anchor bolt passes through the bottom plate and is connected and fixed by a nut.

[0004] In view of the above related technologies, although the connection method of the steel column base is relatively convenient, the bolt heads are exposed outside, which not only affects the appearance of the building, but also may cause safety hazards such as pedestrians tripping; and the bolt heads are exposed outside and are easily damaged and unscrewed, posing a safety hazard. Utility Model Content

[0005] In order to reduce the safety hazards at the connection of the steel column base and improve the neatness and aesthetics, the present application provides a concealed steel column base.

[0006] The present application provides a concealed steel column base, adopting the following technical solutions:

[0007] A concealed steel column base includes a base and a steel column body, and further includes anchor bolts and fixing nuts. The anchor bolts are arranged in the base, the upper ends of the anchor bolts expose the base, the steel column body is hollow inside, a connection hole for the upper end of the anchor bolt to pass through is opened on the bottom plate of the steel column body, a sealing plate is arranged on the side wall of the steel column body, and an installation groove for the sealing plate to be clamped is correspondingly opened on the side wall of the steel column body.

[0008] By adopting the above technical solutions, through opening the installation groove and the connection hole, the upper end of the anchor bolt is inserted into the steel column body and fixed, and then the sealing plate is welded to the installation groove; through this connection method, not only can the stability of the connection be ensured, but also the upper end of the anchor bolt can be hidden in the steel column body, avoiding pedestrians from being tripped and the fixing nut from being unscrewed, improving the overall stability and safety of the steel column base.

[0009] Optionally, a plurality of the anchor bolts are arranged on the base, and a plurality of the connection holes are correspondingly opened for the anchor bolts.

[0010] By adopting the above technical solution, multiple anchor bolts are provided, and the pressure of the steel column body on the column base bolts is dispersed through multi-point connection, improving the stability and reliability of the connection.

[0011] Optionally, it further includes washers, which are provided in one-to-one correspondence with the anchor bolts. The upper end of the anchor bolt can sequentially pass through the bottom plate of the steel column body and the washer and be threadedly connected to the fixing nut.

[0012] By adopting the above technical solution, setting washers can increase the tightness of the connection, reduce the possibility of loosening and slipping, and improve the stability and durability of the connection.

[0013] Optionally, a plurality of sealing plates are arranged at intervals along the side wall of the steel column body, and a plurality of installation grooves are correspondingly opened for the sealing plates.

[0014] By adopting the above technical solution, a plurality of sealing plates are arranged at intervals on the side wall of the steel column body, and a plurality of installation grooves are correspondingly opened. This design facilitates the construction inside the steel column body.

[0015] Optionally, a grouting hole is opened on the side wall of the steel column body. The grouting hole is opened at the end of the steel column body close to the base, and the opening position of the grouting hole is higher than the opening position of the installation groove.

[0016] By adopting the above technical solution, a grouting hole is opened at the end of the steel column body close to the base. Through grouting, the grouting material can fill the gap between the steel column body and the base, improving the tightness and stability of the connection.

[0017] Optionally, it further includes longitudinal stiffeners arranged on the base. The upper end of the longitudinal stiffeners penetrates through the upper surface of the base, and through holes for the longitudinal stiffeners to penetrate are opened on the bottom plate of the steel column body.

[0018] By adopting the above technical solution, longitudinal stiffeners are arranged on the base, and their upper ends penetrate through the upper surface of the base and are connected to the through holes on the bottom plate of the steel column body, enhancing the connection strength between the steel column body and the base; at the same time, the arrangement of the longitudinal stiffeners can also disperse the vertical pressure of the steel column body on the base, improving the anti-overturning ability of the entire steel column foot.

[0019] Optionally, the through hole is a kidney-shaped hole.

[0020] By adopting the above technical solution, designing the through hole as a kidney-shaped hole enables the steel column body to have a certain adjustment space during installation, facilitating precise alignment and installation.

[0021] Optionally, a plurality of longitudinal stiffeners are arranged along the circumferential direction of the steel column body, and the upper ends of the longitudinal stiffeners extend along the inclined direction of the steel column body.

[0022] By adopting the above technical solution, a plurality of longitudinal reinforcing ribs are arranged circumferentially along the steel column body, and the upper ends thereof extend along the inclined direction of the steel column body, enhancing the lateral support capacity of the base for the steel column body and improving the safety of the entire structure.

[0023] Optionally, it further includes stirrups. The stirrups are wound and fixed on the outer side of the longitudinal reinforcing ribs, and a plurality of stirrups are arranged at intervals along the extending direction of the longitudinal reinforcing ribs.

[0024] By adopting the above technical solution, stirrups are wound and fixed on the outer side of the longitudinal reinforcing ribs, and a plurality of stirrups are arranged at intervals along the extending direction of the longitudinal reinforcing ribs, enhancing the connection strength and stability between the longitudinal reinforcing ribs.

[0025] In summary, the present application includes at least one of the following beneficial effects:

[0026] 1. By hiding the connection part of the anchor bolt and the fixing nut inside the steel column body, it can prevent pedestrians from tripping and avoid the fixing nut from being unscrewed, improving the connection safety at the joint of the steel column body.

[0027] 2. By adding grouting holes to grout the end of the steel column body and arranging longitudinal reinforcing ribs, the strength at the joint of the end of the steel column body can be improved, and the overall stability of the steel column base can be enhanced. Brief Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0029] Figure 2 is a perspective structural diagram of this embodiment;

[0030] Figure 3 is a schematic structural diagram of the bottom plate part of the steel column body.

[0031] Description of the reference numerals: 1, base; 2, steel column body; 21, connection hole; 22, sealing plate; 23, installation groove; 24, through hole; 3, anchor bolt; 4, fixing nut; 5, gasket; 6, grouting hole; 7, longitudinal reinforcing rib; 8, stirrup. Detailed Description of the Embodiment

[0032] The following will further describe the present application in detail with reference to the attached Figures 1-3 drawings.

[0033] The embodiment of the present application discloses a concealed steel column base. Refer to Figure 1 and Figure 2, The concealed steel column base includes a base 1, a steel column body 2, anchor bolts 3 and fixing nuts 4. Among them, the base 1 is a seat body cast from reinforced concrete, and the lower ends of the anchor bolts 3 are pre-cast and fixed in the base 1; the upper ends of the anchor bolts 3 protrude from the base 1. The main part of the steel column body 2 is a column body with both ends bent downward, its interior is hollow, and steel plates are fixedly connected to both ends. The plates are oval, and in other embodiments, they can also be circular, rectangular or other shapes; connection holes 21 for the upper ends of the anchor bolts 3 to pass through are provided on the base plates of the steel column body 2, a sealing plate 22 is arranged on the side wall of the steel column body 2, and an installation groove 23 for the sealing plate 22 to be clamped is correspondingly provided on the side wall of the steel column body 2.

[0034] During installation, first place the end of the steel column body 2 on the base 1, so that the upper end of the anchor bolt 3 passes through the connection hole 21 on the end of the steel column body 2, and then control the fixing nut 4 to be threadedly connected to the upper end of the anchor bolt 3 through the installation groove 23 on the steel column body 2, thereby fixing the end of the steel column body 2 on the base 1; finally, fix the sealing plate 22 on the steel column body 2 by welding to seal the installation groove 23, and the connection of the steel column body 2 can be completed; at the same time, the head of the anchor bolt 3 is hidden, and the safety of the connection of the steel column base is improved.

[0035] Refer to Figure 2 and Figure 3 , In this embodiment, specifically, the lower end of the anchor bolt 3 bends horizontally to form a bend to increase the stability of the anchor bolt 3 inserted into the base 1; multiple anchor bolts 3 can be arranged on the base 1, and preferably four are arranged. The concealed steel column base also includes gaskets 5, and the gaskets 5 can be rubber gaskets 5 or metal gaskets 5. Among them, the rubber gaskets 5 can be made of natural rubber or synthetic rubber materials, have good elasticity and wear resistance, and can effectively relieve the pressure concentration phenomenon during the tightening process of the anchor bolts 3; the metal gaskets 5 can be made of stainless steel or aluminum alloy materials, have high strength and corrosion resistance. The specific size of the gasket 5 can be matched according to the size of the anchor bolt 3 to ensure that the gasket 5 can cooperate reliably with the base plate of the steel column body 2 and the anchor bolt 3. After the upper end of the anchor bolt 3 passes through the connection hole 21, it first passes through the gasket 5 and then is threadedly connected to the fixing nut 4, thereby improving the stability of the connection part. Multiple connection holes 21 are provided corresponding to the anchor bolts 3, and multiple fixing nuts 4 and gaskets 5 are also provided corresponding to the anchor bolts 3.

[0036] Refer to Figure 2 and Figure 3, in this embodiment, the outer side of the sealing plate 22 has an arc-shaped structure, and its arc shape is the same as the outer wall of the steel column body 2; for the convenience of welding, the connection surface between the circumferential side of the sealing plate 22 and the installation groove 23 is set as an inclined surface, so that when the sealing plate 22 is clamped and placed on the installation groove 23, it can be sealed on the installation groove 23 and cannot slide into the interior of the steel column body 2 through the sealing groove. For the convenience of construction operations inside the steel column body 2, a plurality of sealing plates 22 are arranged at intervals along the side wall of the steel column body 2, and a plurality of installation grooves 23 are correspondingly opened for the sealing plates 22.

[0037] Refer to Figure 2 and Figure 3 , in order to further strengthen the strength of the connection of the steel column body 2, in this embodiment, a grouting hole 6 is opened on the side wall of the steel column body 2, and the opening position of the grouting hole 6 is slightly higher than the upper end position of the installation groove 23; when all the sealing plates 22 are welded, the end of the steel column body 2 can be enclosed and sealed. At this time, concrete mortar is injected at the grouting hole 6. When the concrete solidifies, it is integrated with the steel column body 2, which can not only increase the strength of the end of the steel column body 2, but also fix the fixing nut 4 to limit its rotation, further improving the stability of the connection of the steel column foot of the steel column body 2.

[0038] Refer to Figure 2 and Figure 3 , in order to further strengthen the strength of the connection of the steel column body 2, in an alternative embodiment, hidden longitudinal stiffeners 7 and stirrups 8 for the steel column foot. Specifically, the longitudinal stiffeners 7 can be made of high-strength materials such as steel bars, and their lower ends are also pre-cast in the base 1 and fixedly connected to the base 1; preferably, the bottom of the longitudinal stiffeners 7 has a bent portion in the horizontal direction to increase the tensile resistance between the longitudinal stiffeners 7 and the base 1; their upper ends penetrate through the upper surface of the base 1, and through holes 24 for the longitudinal stiffeners 7 to penetrate are provided at corresponding positions on the bottom plate of the steel column foot body. A plurality of longitudinal stiffeners 7 are arranged along the circumferential direction of the steel column foot body and extend along the inclined direction of the steel column foot body, improving the stability of the connection structure. For the convenience of the connection of the steel column body 2, the through holes 24 are preferably set as waist-shaped holes, so that the longitudinal stiffeners 7 can be more easily inserted into the through holes 24.

[0039] The stirrups 8 are also made of steel bar materials, and are wound and fixed outside the longitudinal stiffeners 7. After the stirrups 8 are wound around all the longitudinal stiffeners 7, the two ends are superposed and crossed with each other and fixed by welding. A plurality of stirrups 8 are arranged at intervals along the extending direction of the longitudinal stiffeners 7 to further enhance the stability and tensile resistance effect of the base 1.

[0040] The implementation principle of a concealed steel column base in an embodiment of this application is as follows: During construction, first, the longitudinal reinforcing bars 7 and the lower ends of the anchor bolts 3 are cast integrally with the base 1. Then, one end of the steel column body 2 is placed on the base 1. At this time, the longitudinal reinforcing bars 7 and the anchor bolts 3 respectively pass through the bottom plate of the steel column body 2 and are inserted into the steel column body 2. Next, the gasket 5 is sleeved on the upper end of the anchor bolt 3 and fixed by the fixing nut 4. Then, the stirrups 8 are wound around the outside of the longitudinal reinforcing bars 7 and welded in place. Then, the sealing plate 22 is welded to the side wall of the steel column body 2 to block the installation groove 23. Finally, the grout mortar is injected through the grouting hole 6.

[0041] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A concealed steel column base, comprising a base (1) and a steel column body (2), characterized in that: It further includes anchor bolts (3) and fixing nuts (4). The anchor bolts (3) are arranged inside the base (1), and the upper ends of the anchor bolts (3) protrude from the base (1). The steel column body (2) is hollow inside. A connection hole (21) for the upper end of the anchor bolt (3) to pass through is formed on the bottom plate of the steel column body (2). A sealing plate (22) is arranged on the side wall of the steel column body (2), and an installation groove (23) for the sealing plate (22) to be clamped is correspondingly formed on the side wall of the steel column body (2).

2. The concealed steel column base according to claim 1, characterized in that: A plurality of the anchor bolts (3) are arranged on the base (1), and a plurality of the connection holes (21) are correspondingly formed for the anchor bolts (3).

3. The concealed steel column base according to claim 2, characterized in that: It further includes gaskets (5). The gaskets (5) are correspondingly formed for the anchor bolts (3). The upper end of the anchor bolt (3) can sequentially pass through the bottom plate of the steel column body (2) and the gasket (5) and be threadedly connected with the fixing nut (4).

4. A concealed steel column base according to claim 1, wherein: A plurality of the sealing plates (22) are arranged at intervals along the side wall of the steel column body (2), and a plurality of the installation grooves (23) are correspondingly formed for the sealing plates (22).

5. The hidden steel column base according to claim 1, wherein: A grouting hole (6) is formed on the side wall of the steel column body (2). The grouting hole (6) is formed at the end of the steel column body (2) close to the base (1), and the position where the grouting hole (6) is formed is higher than the position where the installation groove (23) is formed.

6. The concealed steel column base according to claim 5, wherein: It further includes longitudinal stiffeners (7) arranged on the base (1). The upper ends of the longitudinal stiffeners (7) penetrate through the upper surface of the base (1). A through hole (24) for the longitudinal stiffeners (7) to pass through is formed on the bottom plate of the steel column body (2).

7. The concealed steel column base according to claim 6, characterized in that: The through hole (24) is an oval hole.

8. The concealed steel column base according to claim 6, wherein: A plurality of the longitudinal stiffeners (7) are arranged along the circumferential direction of the steel column body (2), and the upper ends of the longitudinal stiffeners (7) extend along the inclined direction of the steel column body (2).

9. A concealed steel column base according to claim 8, wherein: It further includes stirrups (8). The stirrups (8) are wound and fixed outside the longitudinal stiffeners (7), and a plurality of the stirrups (8) are arranged at intervals along the extending direction of the longitudinal stiffeners (7).

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