Concrete filled steel tubular column for high-rise building
The design of the support frame and precast concrete base solved the problem of pouring concrete-filled steel tube columns in high-rise buildings, achieving stable connection and uniform pouring, and improving the stability and durability of the concrete-filled steel tube columns.
Patent Information
- Application Number
- CN202520468696.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing steel-concrete composite columns are difficult to control during pouring in high-rise buildings, and are prone to cracking later, resulting in insufficient stability and durability.
The design employs a support frame and precast concrete base, and through the connection of supporting and reinforcing steel bars, combined with bolt positioning and the pouring of cavity structures, stable connection and uniform pouring of steel-concrete composite columns are achieved.
It improves the quality control of concrete pouring, reduces the probability of later cracks, and enhances the stability and durability of steel-concrete composite columns.
Smart Images
Figure CN223880625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high -rise building construction technical field especially a high -rise building steel pipe concrete column. BACKGROUND
[0002] Steel pipe concrete column forms the state of three -way compression through the synergies of steel pipe and concrete, makes the core concrete have higher compressive strength and good plastic deformation ability, is widely used in high -rise building. However, the concrete pouring control of the prior art steel pipe concrete column is difficult, and if the crack and other problems appear in the later period, the maintenance is difficult. UTILITY MODEL CONTENTS
[0003] The utility model solves the technical problem to provide a kind of high -rise building steel pipe concrete column, can solve the deficiency of prior art, improve the stability and durability of steel pipe concrete column in high -rise building.
[0004] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.
[0005] A kind of high -rise building steel pipe concrete column, including steel pipe body, steel pipe body is poured with concrete part in it, the steel pipe body is provided with several support frames, each support frame includes two mutually perpendicular and lapped support steels, steel pipe body bottom is provided with prefabricated concrete pedestal, prefabricated concrete pedestal bottom is provided with the insertion hole for inserting the steel pipe body below, prefabricated concrete pedestal side wall is provided with positioning through hole and pouring hole, steel pipe body side wall is provided with the screw hole corresponding with positioning through hole, after steel pipe body is inserted in insertion hole, bolt is connected by passing through positioning through hole and screw hole, realize the positioning of prefabricated concrete pedestal and steel pipe body, prefabricated concrete pedestal is provided with pouring cavity, pouring cavity is located above insertion hole and is communicated with insertion hole, pouring hole and prefabricated concrete pedestal above steel pipe body are communicated with pouring cavity respectively.
[0006] As preferred, the steel pipe body is provided with a concrete layer outside.
[0007] As preferred, the concrete layer is provided with a steel reinforcement cage inside.
[0008] As preferred, the two mutually perpendicular and lapped support steels are connected by buckle at lapping place, buckle includes the upper shell and lower shell buckled together, lower shell is provided with the cross passage composed of four elastic flaps in it, support steel is cross lapped in cross passage, upper shell bottom is provided with the limit slot corresponding with elastic flap one by one, when upper shell and lower shell are buckled, the top of elastic flap is inserted in corresponding limit slot.
[0009] As preferred, reinforcing steel bars are fixed on the inner wall of the insertion hole, the top of the reinforcing steel bars is welded and fixed with the bottom of the steel pipe body above the prefabricated concrete base, and the side wall of the part of the reinforcing steel bars in the insertion hole is welded and fixed with the side wall of the steel pipe body inserted into the insertion hole.
[0010] The beneficial effects brought by the above technical scheme are that the structure of the steel pipe concrete column is optimized, the quality control level of the poured concrete is improved, and the probability of cracks in the later period is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is a structural diagram of one specific embodiment of the utility model.
[0012] Figure 2 is a top view structural diagram of a support frame in one specific embodiment of the utility model.
[0013] Figure 3 is a structural diagram of a buckle in one specific embodiment of the utility model.
[0014] Figure 4 is an internal structural diagram of a prefabricated concrete base in one specific embodiment of the utility model. DETAILED DESCRIPTION
[0015] In recent years, steel pipe concrete columns are commonly used in high-rise buildings as the main load-bearing structure of the building. The steel pipe concrete column has many advantages such as high bearing capacity, good toughness, and low construction cost. However, after the external steel pipe of the steel pipe concrete column is hoisted and positioned, the concrete is poured into the steel pipe body 1 to form a concrete part 2, and the length of the steel pipe concrete column used in high-rise buildings is generally 6-12 meters, which leads to the fact that when the concrete is poured into the steel pipe body 1, stress uneven areas are prone to occur inside the steel pipe body 1, and the connection position of the adjacent two steel pipe concrete columns is more prone to deviation and cracking due to the inconvenience of reinforcing the connection position by pouring concrete.
[0016] The research personnel of the architectural engineering department of Luohe Technical College and our company have proposed a new steel pipe concrete column structure, which has been used in the construction process of Luohe Hongcheng·Jiupu Residential District, effectively solving the problems of the prior art.
[0017] REFERENCE Figure 1The new type of steel pipe concrete column mainly comprises a steel pipe body 1, the length of the steel pipe body 1 is 7.5 meters, three support frames are horizontally arranged in the steel pipe body 1, the lowermost support frame is located at the bottom of the steel pipe body 1, and a prefabricated concrete base 4 is arranged at the bottom of the steel pipe body 1. The concrete part 2 is formed by pouring the concrete into the steel pipe body 1. The steel pipe body 1 serves as a load-bearing main body, and the prefabricated concrete base 4 is used for realizing the positioning and connection of different steel pipe concrete columns. The outer side of the steel pipe body 1 is provided with a concrete layer 11 with a steel reinforcement cage 12.
[0018] With reference to Figure 4 A plug hole 5 for inserting the lower steel pipe body 1 is reserved at the bottom of the prefabricated concrete base 4, positioning through holes 6 and pouring holes 7 are respectively arranged in the side walls of the prefabricated concrete base 4, a pouring cavity 10 is arranged in the prefabricated concrete base 4, the pouring cavity 10 is located above the plug hole 5 and is in communication with the plug hole 5, the pouring hole 7 and the steel pipe body 1 above the prefabricated concrete base 4 are respectively in communication with the pouring cavity 10. A reinforcing steel bar 14 is fixed to the inner wall of the plug hole 5, the top of the reinforcing steel bar 14 is welded and fixed to the bottom of the steel pipe body 1 above the prefabricated concrete base 4, and the side wall of the part of the reinforcing steel bar 14 located in the plug hole 5 is welded and fixed to the side wall of the steel pipe body 1 inserted into the plug hole 5.
[0019] The construction process of the utility model is as follows: the steel pipe body 1 with the prefabricated concrete base 4 is hoisted to the upper side of the steel pipe body 1 which has been poured, the lower steel pipe body 1 is inserted into the plug hole 5, the bolt 9 is used to connect the positioning through hole 6 and the threaded hole 8 on the side wall of the steel pipe body 1, so that the positioning of the prefabricated concrete base 4 and the steel pipe body 1 is realized. Then the concrete is poured into the steel pipe body 1 through the top of the steel pipe body 1 and the pouring hole 7 (firstly, the concrete is poured into the pouring cavity 10 through the pouring hole 7, when the concrete fills the plug hole 5, the pouring of the concrete from the top of the steel pipe body 1 is started, and the pouring speed of the pouring hole 7 is less than the pouring speed of the top of the steel pipe body 1). The concrete is solidified in the pouring cavity 10 and the plug hole 5, so that the reinforcing steel bar 14 and the steel pipe body 1 are solidified and connected together, and the stable connection of different steel pipe bodies 1 is realized. Then the steel reinforcement cage 12 is bound on the outer side of the steel pipe body 1 and the concrete layer 11 is poured, so that the steel pipe concrete column is reinforced. The utility model realizes the joint connection of the steel pipe concrete column while the concrete is poured, and is convenient for construction and has good connection stability.
[0020] With reference to Figures 2-3Each support frame comprises two mutually perpendicular overlapping support steels 3, the two mutually perpendicular overlapping support steels 3 are connected at the overlapping position by a buckle 13, the buckle 13 comprises an upper shell 13-1 and a lower shell 13-2 buckled together, the lower shell 13-2 is internally provided with a cross passage formed by four elastic stop flaps 13-3, the two support steels 3 cross and overlap in the cross passage, the bottom of the upper shell 13-1 is provided with a limiting slot 13-4 corresponding to the elastic stop flaps 13-3 one by one, and the top of the elastic stop flaps 13-3 is inserted into the corresponding limiting slot 13-4 when the upper shell 13-1 and the lower shell 13-2 are buckled. The support frame is used for strengthening the transverse tensile strength of the steel pipe body 1. The two support steels 3 forming the support frame adopt an elastic overlapping structure, and can fully buffer the transverse tension received by the steel pipe body 1 during pouring of concrete, and improve the stress uniformity of the steel pipe body 1. The support steel 3 located at the bottom of the steel pipe body 1 is welded to the top of the reinforcing steel 14 in contact therewith, a three-dimensional support framework is formed at the connecting part of the concrete filled steel tubular column, so that the tensile strength of the connecting part is strengthened.
[0021] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0022] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A high-rise building steel pipe concrete column comprising a steel pipe body (1) in which a concrete part (2) is cast, characterized in that: The steel pipe body (1) is provided with a plurality of support frames, each support frame comprising two mutually perpendicular and lapped support steels (3), the bottom of the steel pipe body (1) is provided with a prefabricated concrete base (4), the bottom of the prefabricated concrete base (4) is provided with a socket (5) for inserting the lower steel pipe body (1), the side wall of the prefabricated concrete base (4) is provided with a positioning through hole (6) and a pouring hole (7), the side wall of the steel pipe body (1) is provided with a threaded hole (8) corresponding to the positioning through hole (6), after the steel pipe body (1) is inserted into the socket (5), the bolt (9) is used to connect the positioning through hole (6) and the threaded hole (8), so as to realize the positioning of the prefabricated concrete base (4) and the steel pipe body (1), the prefabricated concrete base (4) is provided with a pouring cavity (10), the pouring cavity (10) is located above the socket (5) and communicates with the socket (5), the pouring hole (7) and the steel pipe body (1) above the prefabricated concrete base (4) respectively communicate with the pouring cavity (10).
2. The high-rise building steel pipe concrete column according to claim 1, characterized in that: The steel pipe body (1) is provided with a concrete layer (11) outside.
3. The high-rise building steel pipe concrete column according to claim 2, characterized in that: The concrete layer (11) is provided with a steel reinforcement cage (12) inside.
4. The high-rise building steel pipe concrete column according to claim 1, characterized in that: The two mutually perpendicular and lapped support steels (3) are connected by a buckle (13) at the lapped portion, the buckle (13) comprises an upper shell (13-1) and a lower shell (13-2) buckled together, the lower shell (13-2) is provided with a cross passage composed of four elastic flaps (13-3), the support steels (3) are cross-lapped in the cross passage, the bottom of the upper shell (13-1) is provided with a limiting groove (13-4) corresponding to the elastic flaps (13-3), and the top of the elastic flaps (13-3) is inserted into the corresponding limiting groove (13-4) when the upper shell (13-1) and the lower shell (13-2) are buckled.
5. The high-rise building steel pipe concrete column according to claim 1, characterized in that: The inner wall of the socket (5) is fixedly provided with a reinforcing steel bar (14), the top of the reinforcing steel bar (14) is welded and fixed with the bottom of the steel pipe body (1) above the prefabricated concrete base (4), and the side wall of the portion of the reinforcing steel bar (14) located in the socket (5) is welded and fixed with the side wall of the steel pipe body (1) inserted into the socket (5).