Column foot structure with lateral force resistance

Abstract

The utility model discloses a column foot structure with lateral force resistance in the technical field of steel structures, which comprises a precast concrete base, a bottom rod is arranged at the top of the precast concrete base, a plurality of reinforcing plates are uniformly and fixedly connected to the outer wall of the bottom end of the bottom rod, and the reinforcing plates are arranged in a triangular structure. The bottoms of the multiple reinforcing plates are fixedly connected with the top of the prefabricated concrete base. The structural strength of the concrete embedded part is improved by matching the precast concrete base with the internal foundation pile, the foundation pile reinforcing ribs and the base reinforcing ribs, meanwhile, the vertical pressure resistance of the bottom rod is improved by matching the reinforcing rod with the fixed connection of the bottom plate, meanwhile, the lateral force resistance effect of the bottom rod is improved by matching the reinforcing plate with the reinforcing part, and in actual use, the structural strength of the concrete embedded part is improved. The reinforcing pieces are connected with the prefabricated concrete bases on the two sides of the bottom rod, side pulling force is formed on the bottom rod, and therefore the side force resistance of the bottom rod and the stability of the bottom rod are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structures, in particular to a column foot structure with lateral force resistance. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings, bridges and other fields. Steel structures are prone to rust. Generally, steel structures need to be rust-free, galvanized or painted, and maintained regularly.

[0003] When the steel structure is installed, in order to improve the firmness of the steel structure, a column foot needs to be installed at the bottom of the steel structure to improve the connection strength of the steel structure. For example, Patent No.: 202120663026.X proposes a steel structure column foot structure, including a fixing component for fixing the steel structure column to the building foundation, the fixing component includes an embedded steel column and a fixing plate, the embedded steel column includes an embedded part and a fixed part, the embedded part is embedded in the building foundation, the fixed part is exposed outside the building foundation, the fixing plate is horizontally arranged on the building foundation and fixedly connected to the fixing part, and the top of the fixing plate is fixedly connected to the steel structure column.

[0004] In this patent, the lateral force resistance of the column base is improved by increasing the connection strength between the column base and the embedded parts. However, in actual use, if the lateral force applied to the column base is large, the connection strength between the column base and the embedded parts cannot provide effective lateral force resistance and can only ensure the connection strength of the column base in the vertical direction. Utility Model Content

[0005] The utility model aims to provide a column base structure with lateral force resistance, which improves the structural strength of concrete embedded parts by cooperating with internal foundation piles, pile reinforcement ribs and base reinforcement ribs through a precast concrete base, and at the same time, improves the vertical compressive resistance of the bottom bar by cooperating with the fixed connection of the reinforcing rod and the bottom plate, and at the same time, increases the lateral force resistance of the bottom bar by cooperating with the reinforcing plate and the reinforcing member. In actual use, the reinforcing member is connected to the precast concrete bases on both sides of the bottom bar to form a lateral pulling force on the bottom bar, thereby realizing the lateral force resistance and stability of the bottom bar, so as to solve the problem raised in the above-mentioned background technology that in actual use, if the lateral force applied to the column base is large, the connection strength between the column base and the embedded parts cannot provide effective lateral force resistance and can only ensure the connection strength problem of the column base in the vertical direction.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a column base structure with lateral force resistance, comprising a precast concrete base, a bottom rod is arranged on the top of the precast concrete base, a plurality of reinforcing plates are evenly fixedly connected to the outer wall of the bottom end of the bottom rod, the plurality of reinforcing plates are arranged in a triangular structure, the bottoms of the plurality of reinforcing plates are fixedly connected to the top of the precast concrete base, a reinforcing member is arranged on the outer wall of the top end of the bottom rod, the reinforcing member comprises a connecting ring, the connecting ring is sleeved on the outer wall of the bottom rod, a plurality of locking bolts are threadedly connected to the outer walls at both ends of the connecting ring, and auxiliary support rods are arranged on the side walls on both sides of the connecting ring.

[0007] As a further solution of the utility model: the two auxiliary support rods are respectively provided with telescopic grooves at one end close to the connecting ring, the auxiliary support rods are respectively provided with telescopic rods movably connected at one end close to the connecting ring, the top of the auxiliary support rod close to one end of the telescopic rod is threaded with a limiting bolt, and the two limiting bolts pass through one end of the auxiliary support rod and touch the outer wall of the telescopic rod.

[0008] As a further solution of the utility model: both ends of the two auxiliary support rods are fixedly connected with a rotating block, and a connecting groove is opened inside the rotating block.

[0009] As a further solution of the utility model: the outer wall of the connecting ring close to one end of the auxiliary support rod is fixedly connected with a fixing block, the two auxiliary support rods are respectively provided with a fixing plate at one end away from the connecting ring, the two fixing plates are respectively fixedly connected with one end of the auxiliary support rod, and the side walls of the two fixing plates located on both sides of the movable plates are threaded with multiple fixing bolts.

[0010] As a further solution of the utility model: the two fixed blocks and the movable plate are both arranged in connecting grooves that match each other in position, and the inner walls of the plurality of connecting grooves are all penetrated by a rotating shaft that is rotatably connected.

[0011] As a further solution of the utility model: foundation piles are fixed to the bottom of the precast concrete base, base reinforcement ribs are fixed inside the precast concrete base, the bottom of the bottom rod is fixed to the inside of the precast concrete base, and the inside of the bottom rod is fixedly connected to a bottom plate.

[0012] As a further solution of the utility model: a reinforcing rod is fixed inside the foundation pile, the top of the reinforcing rod is fixedly connected to the bottom of the base plate, and a plurality of foundation pile reinforcing ribs are fixedly connected inside the foundation pile located outside the reinforcing rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, the structural strength of the concrete embedded parts is improved by cooperating the precast concrete base with the internal foundation piles, pile reinforcement ribs and base reinforcement ribs; at the same time, the vertical compressive resistance of the bottom bar is improved by the fixed connection of the reinforcing rod with the bottom plate; at the same time, the lateral force resistance of the bottom bar is increased by cooperating the reinforcing plate with the reinforcing member; in actual use, the reinforcing member is connected to the precast concrete bases on both sides of the bottom bar to form a lateral pulling force on the bottom bar, thereby achieving the lateral force resistance and stability of the bottom bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of a column base structure with lateral force resistance according to the utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of a prefabricated concrete base in a column foot structure with lateral force resistance of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the structure of a reinforcement member in a column base structure with lateral force resistance of the utility model;

[0017] Figure 4 The utility model is a column foot structure with lateral force resistance Figure 3 A schematic diagram of the structure enlargement at the center A;

[0018] Figure 5 The utility model is a column foot structure with lateral force resistance Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0019] In the figure: 1. precast concrete base; 2. bottom rod; 21. bottom plate; 3. reinforcement; 31. connecting ring; 311. fixing block; 32. locking bolt; 33. telescopic rod; 34. auxiliary support rod; 35. rotating block; 36. rotating shaft; 37. connecting groove; 38. limiting bolt; 4. reinforcement plate; 5. foundation pile; 51. reinforcement rod; 52. foundation pile reinforcement rib; 6. base reinforcement rib; 7. fixing plate; 71. fixing bolt; 72. movable plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", 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 present invention and simplifying the description, rather than indicating or implying 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 present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figures 1 to 5 In an embodiment of the utility model, a column foot structure with lateral force resistance includes a precast concrete base 1, a bottom rod 2 is arranged on the top of the precast concrete base 1, and a plurality of reinforcing plates 4 are evenly fixedly connected to the outer wall of the bottom end of the bottom rod 2, and the plurality of reinforcing plates 4 are arranged in a triangular structure, and the bottoms of the plurality of reinforcing plates 4 are fixedly connected to the top of the precast concrete base 1, and a reinforcing member 3 is arranged on the outer wall of the top end of the bottom rod 2. The reinforcing member 3 includes a connecting ring 31, and the connecting ring 31 is sleeved on the outer wall of the bottom rod 2. The outer walls at both ends of the connecting ring 31 are threaded with a plurality of locking bolts 32, and the side walls on both sides of the connecting ring 31 are provided with auxiliary support rods 34.

[0025] Preferably, in this embodiment, when the steel frame is connected, the connection is performed by cooperating with the precast concrete base 1 through the bottom bar 2. At the same time, the connection strength and lateral force resistance of the bottom bar 2 are improved by the reinforcing plate 4. In combination with the reinforcing members 3 on both sides, lateral pulling force can be formed on both sides of the bottom bar 2, thereby further improving the lateral force resistance of the bottom bar 2.

[0026] The two auxiliary support rods 34 are respectively provided with telescopic grooves at one end close to the connecting ring 31, and the auxiliary support rods 34 are respectively passed through one end close to the connecting ring 31 and are movably connected with the telescopic rod 33. The top of the auxiliary support rod 34 close to one end of the telescopic rod 33 is threadedly connected with a limiting bolt 38, and the two limiting bolts 38 pass through one end of the auxiliary support rod 34 and touch the outer wall of the telescopic rod 33.

[0027] Both ends of the two auxiliary support rods 34 are fixedly connected to a rotating block 35 , and a connecting groove 37 is formed inside the rotating block 35 .

[0028] A fixing block 311 is fixedly connected to the outer wall of the connecting ring 31 near one end of the auxiliary support rod 34, and a fixing plate 7 is provided at one end of the two auxiliary support rods 34 away from the connecting ring 31. The two fixing plates 7 are fixedly connected to one end of the auxiliary support rod 34 near one end of the auxiliary support rod 34, and a plurality of fixing bolts 71 are threadedly connected through the side walls of the two fixing plates 7 on both sides of the movable plate 72.

[0029] The two fixed blocks 311 and the movable plate 72 are both disposed in the connection grooves 37 that match each other in position, and the inner walls of the plurality of connection grooves 37 are all penetrated by the rotating shafts 36 that are rotatably connected.

[0030] The side pull angle of the reinforcement 3 can be adjusted by the retractable auxiliary support rod 34 and the telescopic rod 33, and then the angle can be adjusted by cooperating with the rotating blocks 35, the fixed blocks 311, the movable plates 72 and the rotating shafts 36 on both sides to ensure that the reinforcement 3 can be connected at different angles, thereby forming different side pull angles.

[0031] A foundation pile 5 is fixed to the bottom of the precast concrete foundation 1 , a foundation reinforcement rib 6 is fixed inside the precast concrete foundation 1 , the bottom of the bottom rod 2 is fixed inside the precast concrete foundation 1 , and a bottom plate 21 is fixedly connected inside the bottom rod 2 .

[0032] A reinforcing rod 51 is fixed inside the foundation pile 5 , the top of the reinforcing rod 51 is fixedly connected to the bottom of the base plate 21 , and a plurality of foundation pile reinforcing ribs 52 are fixedly connected inside the foundation pile 5 located outside the reinforcing rod 51 .

[0033] The working principle of the utility model is: when using the device, it is only necessary to cast the foundation pile 5 and the precast concrete base 1 to the installation position. When the foundation pile 5 and the precast concrete base 1 are cast, the bottom rod 2 and the floor 21 are installed, and then the connecting ring 31 is sleeved to the appropriate height of the bottom rod 2, and the connecting ring 31 is locked by the locking bolt 32, and then the angles of the auxiliary support rod 34 and the telescopic rod 33 are adjusted by the rotating shaft 36, and the fixing plate 7 is connected and limited to the top of the precast concrete base 1 by the fixing bolt 71, and the reinforcing member 3 is connected and limited to increase the lateral force resistance of the bottom rod 2, and then the steel structure is installed on the top of the bottom rod 2.

[0034] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0035] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A column foot structure with lateral force resistance, comprising a prefabricated concrete base (1), characterized in that: The top of the precast concrete base (1) is provided with a bottom rod (2), the bottom outer wall of the bottom end of the bottom rod (2) is evenly fixedly connected with a plurality of reinforcing plates (4), the plurality of reinforcing plates (4) are all arranged in a triangular structure, the bottoms of the plurality of reinforcing plates (4) are all fixedly connected with the top of the precast concrete base (1), the top outer wall of the bottom rod (2) is provided with a reinforcing member (3), the reinforcing member (3) comprises a connecting ring (31), the connecting ring (31) is sleeved on the outer wall of the bottom rod (2), the outer walls at both ends of the connecting ring (31) are threadedly connected with a plurality of locking bolts (32), and the side walls on both sides of the connecting ring (31) are provided with auxiliary support rods (34).

2. A column base structure with lateral force resistance according to claim 1, characterized in that: The two auxiliary support rods (34) are each provided with a telescopic groove at one end close to the connecting ring (31), and the two auxiliary support rods (34) are each provided with a telescopic rod (33) at one end close to the connecting ring (31). The top of the auxiliary support rod (34) close to one end of the telescopic rod (33) is provided with a threaded limit bolt (38), and the two limit bolts (38) pass through one end of the auxiliary support rod (34) and contact the outer wall of the telescopic rod (33).

3. The column base structure with lateral force resistance according to claim 1, characterized in that: Both ends of the two auxiliary support rods (34) are fixedly connected to a rotating block (35), and a connecting groove (37) is provided inside the rotating block (35).

4. The column base structure with lateral force resistance according to claim 1, characterized in that: A fixing block (311) is fixedly connected to the outer wall of the connecting ring (31) close to one end of the auxiliary support rod (34); a fixing plate (7) is provided at one end of each of the two auxiliary support rods (34) away from the connecting ring (31); a movable plate (72) is fixedly connected to one end of each of the two fixing plates (7) close to the auxiliary support rod (34); and a plurality of fixing bolts (71) are threadedly connected to the side walls of the two fixing plates (7) located on both sides of the movable plate (72).

5. The column base structure with lateral force resistance according to claim 4, characterized in that: The two fixed blocks (311) and the movable plate (72) are both arranged in matching connection grooves (37), and the inner walls of the plurality of connection grooves (37) are all penetrated by a rotating shaft (36) for rotational connection.

6. The column base structure with lateral force resistance according to claim 1, characterized in that: A foundation pile (5) is fixed to the bottom of the precast concrete base (1), a base reinforcement rib (6) is fixed inside the precast concrete base (1), the bottom of the bottom rod (2) is fixed to the inside of the precast concrete base (1), and a bottom plate (21) is fixedly connected to the inside of the bottom rod (2).

7. The column base structure with lateral force resistance according to claim 6, characterized in that: A reinforcing rod (51) is fixed inside the foundation pile (5), the top of the reinforcing rod (51) is fixedly connected to the bottom of the base plate (21), and a plurality of foundation pile reinforcing ribs (52) are fixedly connected inside the foundation pile (5) located outside the reinforcing rod (51).

Images