A quick installation structure for a concrete filled steel tube foot

Abstract

The application provides a quick installation structure for a steel pipe concrete foot, and particularly relates to the field of building construction. The structure comprises a steel pipe concrete and an anchoring device; the top of the anchoring device is provided with a plurality of support assemblies, and the steel pipe concrete is fixedly connected with the support assemblies through installation heads. The number, size and installation angle of the anchoring device, the steel pipe concrete, the installation heads and the support assemblies can be designed according to actual construction needs, and quick installation can be achieved through simple processes such as insertion, threaded connection and welding between the parts. In addition, the steel pipe concrete adopts a multi-layer wall design, effectively solves the problems of easy debonding, cracking and cavity in conventional steel pipe concrete structures, and can improve the construction efficiency, the bearing capacity and the stability of the structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a quick installation structure for the foot of a steel pipe concrete. BACKGROUND

[0002] As a composite structure, steel pipe concrete can fully utilize the performance advantages of steel and concrete, and has higher bearing capacity, stability and economy compared to single material, so it is widely used in large structures. However, the steel pipe concrete currently generally faces problems such as interfacial debonding and durability damage, which affect the service safety of this structure. The reasons for the debonding and voiding of steel pipe concrete are numerous, including axial compression, concrete shrinkage and creep, and internal and external temperature changes. In addition, as a composite structure, the connection structure of the foot of the steel pipe concrete and the ground is relatively complex and prone to various damage, which is the area of concern in actual engineering construction. With the continuous increase of construction span and the continuous popularization of steel pipe concrete, large-diameter steel pipe concrete will inevitably be widely used. How to achieve anti-debonding and anti-cracking of super-large diameter steel pipe concrete while completing quick installation and improving on-site construction efficiency is a technical problem that the engineering field is concerned about and urgently needs to solve. SUMMARY

[0003] In order to overcome the shortcomings of the prior art and solve the problems of interfacial debonding and durability damage of traditional single material concrete and the inconvenience of steel pipe concrete foot construction, the present application provides a quick installation structure for the foot of a steel pipe concrete, and the specific technical solutions are as follows:

[0004] A quick installation structure for the foot of a steel pipe concrete, comprising a steel pipe concrete and an anchoring device; the top of the anchoring device is provided with a plurality of support assemblies, and the steel pipe concrete is connected with the support assemblies through a mounting head.

[0005] Preferably, the size of the steel pipe concrete is matched with the size of the mounting head, and the two ends of the steel pipe concrete are provided with connecting heads.

[0006] Preferably, the mounting head comprises a hollow and circular truncated cone-shaped plug, a steel support and a flange plate; the outer surface of the side wall of the plug is provided with a rubber layer; the steel support comprises a support rod, a support piece and a connecting piece; the support piece is fixed on the side wall of the inner cavity of the plug; one end of the support rod is fixed at the bottom of the connecting piece, and the other end is fixed at the bottom of the inner cavity of the plug; the flange plate is connected with the steel support through the connecting piece; one side of the flange plate close to the connecting piece is provided with a connecting protrusion, and the other side is provided with a first groove matched with the connecting head; the connecting piece is provided with a second groove matched with the connecting protrusion.

[0007] Preferably, the connecting head, connecting protrusion and connecting piece are uniformly distributed with a plurality of corresponding threaded holes in the circumferential direction, and the steel pipe concrete, flange plate and steel support are fixed through bolts.

[0008] Further preferably, the support assembly comprises a plurality of foot sleeves and a plurality of supports arranged at the bottom of the foot sleeves.

[0009] Further preferably, the anchoring device comprises a base plate and a plurality of anchor rods arranged at the bottom of the base plate; the anchor rods are connected with the base plate through threads; and the lower parts of the anchor rods are each provided with an anti-disengagement piece.

[0010] Further preferably, the size of the plug-in head is matched with the inner size of the foot sleeve; and the plug-in head is plugged into the foot sleeve.

[0011] Further preferably, the steel pipe concrete is sequentially divided into a steel pipe layer, a plastic layer, a reinforcing layer and a core layer from outside to inside.

[0012] Further preferably, the plastic layer is made of polyurethane material; the reinforcing layer is made of UHPC material; and the core layer is made of ordinary concrete material.

[0013] Further preferably, the base plate and the plug-in head are both made of steel material

[0014] The present application has the following beneficial effects:

[0015] 1. The multi-layer structure of the steel pipe concrete in the present application can effectively reduce the problems of easy debonding, cracking and cavity in conventional steel pipe concrete structures, and is more stable in stress and has good bearing capacity.

[0016] 2. The installation head, support assembly and anchoring device are arranged in the present application, and the components are simply combined, plugged and welded on the construction site, so that the steel pipe concrete foot structure can be quickly installed on the construction site, the construction difficulty is reduced, and the construction efficiency is improved.

[0017] 3. The installation head, support assembly and anchoring device in the present application can be flexibly arranged in number, geometric size and installation angle according to the actual needs of the project. DETAILED DESCRIPTION

[0018] The drawings constituting the specification of the present application are used to provide further understanding of the present application and do not constitute undue limitation on the present application.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is an exploded view of the overall structure of the present application;

[0021] Figure 3This is a schematic diagram of the anchoring device.

[0022] Figure 4 This is a schematic diagram of the mounting head structure;

[0023] Figure 5 for Figure 4 Cross-sectional view of the center connector;

[0024] Figure 6 This is a cross-sectional view of concrete-filled steel tubing.

[0025] In the diagram, 1. Steel-concrete composite pipe; 1-1. Connector; 2. Foot sleeve; 2-1. Bracket; 3. Mounting head; 4. Anchoring device; 5. Base plate; 6. Anchor bolt; 6-1. Anti-detachment component; 7. Plug joint; 8. Steel support; 8-1. Support component; 8-2. Connector; 8-3. Support rod; 9. Flange; 9-1. Connecting protrusion; 10. Steel pipe layer; 11. Plastic layer; 12. Reinforcement layer; 13. Core layer. Detailed Implementation

[0026] The specific implementation of a rapid installation structure for steel-concrete composite pipe footing provided by the present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 1-3 As shown, a quick-installation structure for steel-concrete composite pipe feet includes a steel-concrete composite pipe 1 and an anchoring device. The anchoring device includes a base plate 5 and several anchor rods 6 disposed at the bottom of the base plate 5. Preferably, to prevent the anchor rods 6 from tilting or easily detaching from the construction ground, an anti-detachment component 6-1 is provided at the lower part of each anchor rod 6. The anchor rods 6 are fixed to the base plate 5 by threaded connection. Several support components are provided at the top of the anchoring device. Each support component includes several foot sleeves 2 and a bracket 2-1 disposed at the bottom of each foot sleeve 2. Preferably, the brackets 2-1 can be set with different angles or numbers according to installation and construction requirements. The steel-concrete composite pipe 1 is fixed by inserting an installation head 3 into the foot sleeve 2 of the support component.

[0028] Preferably, for ease of installation and connection, each steel pipe concrete 1 is provided with a connector 1-1 at both ends.

[0029] Preferably, such as Figures 4-5As shown, the mounting head 3 comprises an internally hollow and frustoconical plug 7, a steel support 8 and a flange 9; the steel support 8 comprises a support 8-1, a connecting piece 8-2 and a support rod 8-3; wherein the support 8-1 is used to support the hollow plug 7 inner cavity sidewall, one end of the support rod 8-3 is fixed at the bottom of the connecting piece 8-2, and the other end is fixed at the inner cavity bottom of the plug 7, so that the overall structure is more stable. The flange 9 is connected with the steel support 8 through the connecting piece 8-2; the side of the flange 9 close to the connecting piece 8-2 is provided with a connecting protrusion 9-1, and the other side is provided with a first groove matched with the end connecting head 1-1 of the steel pipe concrete 1; similarly, the connecting piece 8-2 is also provided with a second groove matched with the connecting protrusion 9-1. The connecting piece 8-2, the connecting protrusion 9-1 and the connecting head 1-1 are uniformly distributed with a plurality of corresponding threaded holes in the circumferential direction, and the steel pipe concrete 1, the steel support 8 and the flange 9 are fixedly connected through the threaded holes and bolts matched with the threaded holes. This connecting mode of adding grooves and protrusions at the connecting part can make the stability of the structure connecting part more stable.

[0030] Preferably, in order to increase the friction between the plug 7 and the inner cavity of the foot sleeve 2 and make the plug more stable, a thin rubber layer is arranged on the outer surface of the sidewall of the plug 7.

[0031] It is also preferred that the size of the steel pipe concrete 1 is matched with the size of the mounting head 3, and the outer size of the plug 7 is matched with the inner size of the foot sleeve 2.

[0032] It is further preferred that in order to ensure the strength of the key stress part of the structure, the bottom plate 5 and the plug 7 are made of steel materials with good tensile, compressive, bending and shear strength.

[0033] As shown in the figure, Figure 6 In order to solve the problems of easy debonding, cracking and cavity in the conventional steel pipe concrete structure, the steel pipe concrete 1 is designed as a structure, which is sequentially divided into a steel pipe layer 10, a plastic layer 11, a reinforcing layer 12 and a core layer 13 from outside to inside. The plastic layer 11 is made of polyurethane material; the reinforcing layer 12 is made of UHPC material; the core layer 13 is made of ordinary concrete material; the arrangement of the multi-layer structure makes the steel pipe concrete 1 more stable in stress and better in bearing capacity.

[0034] In use, first, the anchor rod 6 is rotated into the construction ground according to the installation position, and then the top of each anchor rod 6 is fixed to the chassis 5 through bolts; then, the mounting head 3 and the steel pipe concrete 1 are fixed through bolts, and one end of the plug-in head 7 provided with a rubber layer is rotated and inserted into the inside of the foot sleeve 2, so that the rapid installation of the steel pipe concrete foot is completed; finally, on the basis of the installation, the required building structure is gradually built on the upper surface of the steel pipe concrete 1 according to the construction requirement. The present application mainly aims at the current complex structure and construction problem of the steel pipe concrete structure foot, and provides a simplified and optimized structure for the rapid installation of the steel pipe concrete foot, which can be applied to small power transmission towers, signal pole towers, small space net racks and other building constructions; for small self-weight civil engineering structures, the rapid installation structure can greatly reduce the construction difficulty, improve the work efficiency, and also improve the industrialization and productization of the engineering project.

[0035] In the present application, the terms such as "upper", "lower", "bottom", "top" and the like indicate the orientation or positional relationship shown in the drawings, which is only a relationship word determined for the purpose of describing the structural relationship of the components or elements of the present application, and cannot be understood as a limitation of the present application. The terms such as "connected", "connected" and the like should be understood broadly, which means that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For the relevant scientific research or technical personnel in the field, the specific meaning of the above terms in the present application can be determined according to the specific circumstances, and cannot be understood as a limitation of the present application.

[0036] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. The changes, modifications, additions or replacements made by the technical personnel in the technical field within the essential scope of the present application should also belong to the protection scope of the present application.

Claims

1. A quick installation structure for a concrete filled steel tube foot, characterized by, The application relates to a steel pipe concrete and an anchoring device; the top of the anchoring device is provided with a plurality of support assemblies, and the steel pipe concrete is connected with the support assemblies through mounting heads; The size of the steel pipe concrete is matched with the size of the mounting head, and the two ends of the steel pipe concrete are provided with connecting heads; The mounting head comprises a hollow and circular truncated cone-shaped plug-in head, a steel support and a flange plate; the outer surface of the side wall of the plug-in head is provided with a rubber layer; the steel support comprises a support rod, a support piece and a connecting piece; the support piece is fixed on the side wall of the inner cavity of the plug-in head; one end of the support rod is fixed on the bottom of the connecting piece, and the other end is fixed on the bottom of the inner cavity of the plug-in head; the flange plate is connected with the steel support through the connecting piece; one side of the flange plate close to the connecting piece is provided with a connecting protrusion, and the other side is provided with a first recess matched with the connecting head; the connecting piece is provided with a second recess matched with the connecting protrusion.

2. The rapid installation structure for a concrete filled steel tube leg according to claim 1, wherein The connecting head, the connecting protrusion and the connecting piece are uniformly distributed with a plurality of corresponding threaded holes in the circumferential direction, and the steel pipe concrete, the flange plate and the steel support are fixed through bolts.

3. The rapid installation structure for a concrete filled steel tube leg according to claim 1, wherein The support assembly comprises a plurality of foot sleeves and a plurality of supports arranged at the bottom of the foot sleeves.

4. The rapid installation structure for a concrete filled steel tube leg according to claim 3, wherein The anchoring device comprises a bottom plate and a plurality of anchor rods at the bottom of the bottom plate; the anchor rods are connected with the bottom plate through threads; the lower parts of the anchor rods are provided with anti-falling pieces.

5. The rapid installation structure for a concrete filled steel tube leg according to claim 4, wherein The size of the plug-in head is matched with the inner size of the foot sleeve; the plug-in head is inserted into the foot sleeve.

6. The rapid installation structure for a concrete filled steel tube leg according to claim 1, wherein The steel pipe concrete is sequentially divided into a steel pipe layer, a plastic layer, a reinforcing layer and a core layer from outside to inside.

7. The quick installation structure for a concrete filled steel tube leg according to claim 6, wherein The plastic layer is made of polyurethane material; the reinforcing layer is made of UHPC material; and the core layer is made of ordinary concrete material.

8. The rapid installation structure for a concrete filled steel tube leg according to claim 5, wherein The bottom plate and the plug-in head are made of steel material.

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