Concrete combination column

Abstract

The utility model relates to the technical field of structural members, in particular to a concrete combination column which comprises a pultrusion fiber pipe, a peripheral framework and a concrete filling area, the peripheral framework comprises longitudinal steel bars and transverse stirrups, the longitudinal steel bars and the transverse stirrups are arranged in a staggered mode, a core area is arranged in the pultrusion fiber pipe, and the core area is filled with phosphogypsum. Through the combined structure of the pultrusion fiber pipe, the peripheral framework, the concrete filling area and the core area filled with the ardealite, the bearing capacity of an existing concrete column is effectively improved, meanwhile, the solid waste ardealite is well utilized, and negative influences on the ecological environment are reduced in an auxiliary mode.

Description

Technical Field

[0001] The present application relates to the technical field of structural components, and in particular to a concrete composite column. Background Art

[0002] With the rapid development of industrialization, phosphogypsum, as a common solid waste, is produced in large quantities in the processes of phosphorus chemical industry and fertilizer production. However, phosphogypsum contains harmful components such as heavy metals and radioactive elements. Its improper treatment or utilization may lead to the pollution of soil and groundwater, posing a serious threat to the ecological environment. At the same time, in infrastructure construction, especially driven by urbanization, the demand for concrete is increasing day by day, leading to the continuous consumption of resources such as ore, river sand, and cement. This large-scale mining and use not only aggravates the depletion of natural resources, but also causes many ecological and environmental problems. Therefore, if phosphogypsum can be used to replace part of the concrete in the building structure, it will achieve a win-win situation of solid waste utilization and reduced concrete consumption.

[0003] The prior art application date is March 20, 2018, the publication number is CN208280457U, and the Chinese utility model patent named "A Concrete Composite Column" discloses a concrete composite column, including a main body and a first reinforcing structure unit, the first reinforcing structure unit is arranged on the outside of the main body; the main body is a hollow structure, and building materials are poured inside it; the main body is a high-density polyethylene material component; the first reinforcing structure unit is a fiber-reinforced composite material component. Under the joint action of the first reinforcing structure unit and the high-density polyethylene material main body, the concrete composite column of the above technology has further improved bearing capacity, good seismic performance and ductility, reduced cross-sectional size, improved bending resistance of the cross-section, and good corrosion resistance. It is particularly suitable for buildings, bridges and special structures in harsh environments such as oceans, moisture and saline-alkali land.

[0004] In the above technology, concrete columns mainly rely on the bearing capacity of concrete itself when under pressure. In today's increasingly complex construction field, concrete alone cannot be used in more scenarios. At the same time, the above technology will still consume a lot of concrete and have a negative impact on the ecological environment. Utility Model Content

[0005] The inventors discovered through research that core-constrained concrete columns are a technology that uses tubular materials inside concrete columns to constrain concrete. This constraining force enables the concrete to fully utilize its compressive strength, delay the destruction process of the column, and give it better deformation and energy absorption capabilities.

[0006] The purpose of the present application is to provide a concrete composite column to solve the technical problem that the prior art cannot provide a column that can be used under low axial compression ratio conditions.

[0007] According to one aspect of the present application, a concrete composite column is provided, comprising a pultruded fiber tube, a peripheral skeleton, and a concrete filling area, wherein the peripheral skeleton comprises longitudinal steel bars and transverse stirrups, wherein the longitudinal steel bars and the transverse stirrups are alternately arranged, and a core area is arranged in the pultruded fiber tube, and the core area is filled with phosphogypsum.

[0008] In some embodiments, the concrete type filled in the concrete filling area is C15 to C60.

[0009] In some embodiments, the cross-sectional shape of the pultruded fiber tube is circular.

[0010] In summary, the present application effectively improves the bearing capacity of existing concrete columns through the combined structure of pultruded fiber tubes, outer skeletons, concrete filling areas, and core areas filled with phosphogypsum, while also making better use of solid waste phosphogypsum, helping to reduce the negative impact on the ecological environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 is a schematic cross-sectional view of a concrete composite column according to some embodiments of the present application;

[0013] Figure 2 is a schematic axial cross-sectional view of a concrete composite column in some embodiments of the present application;

[0014] Figure 3 It is another cross-sectional schematic diagram of a concrete composite column according to some embodiments of the present application.

[0015] Legend:

[0016] 1-core area; 2-pultruded fiber tube; 3-peripheral skeleton; 31-longitudinal reinforcement; 32-transverse stirrups; 4-concrete filling area; In order to avoid interference with technical features, Figure 1 -Attached Figure 3 The middle guide line is a dotted line. DETAILED DESCRIPTION

[0017] The following will be a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the present application and its application or use.

[0018] This embodiment provides a concrete composite column, which is already in use. Figure 1-3 It is described that based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0019] In order to better understand this application, some explanations are as follows:

[0020] The pultruded fiber tube in the present application is GFRP, CFRP or BFRP.

[0021] Example 1

[0022] Reference Figure 1 -Attached Figure 2 The present embodiment provides a concrete composite column, comprising a pultruded fiber tube 2, a peripheral skeleton 3, and a concrete filling area 4. The peripheral skeleton 3 comprises longitudinal steel bars 31 and transverse stirrups 32. The longitudinal steel bars 31 and the transverse stirrups 32 are alternately arranged. A core area 1 is arranged in the pultruded fiber tube 2, and the core area 1 is filled with phosphogypsum. The model of the concrete filled in the concrete filling area 4 is C15 to C60.

[0023] The pultruded fiber tube 2 provides radial restraint for the core area 1, and the outer concrete filling area 4 can prevent the pultruded fiber tube 2 from being locally damaged and fatigue damaged under pressure, while facilitating the compressed component to meet the load-bearing requirements.

[0024] At the same time, the compressive strength of the phosphogypsum in this embodiment is 20MPa, and the tensile strength is 3MPa; the diameter of the pultruded fiber tube 2 is to The column side length of the composite column is 5mm, the wall thickness is 5mm, the ultimate tensile strength of the pultruded fiber tube 2 is between 400MPa and 3000MPa, and the tensile fracture strain is between 1.5% and 4%; the concrete in the concrete filling area 4 is obtained by mixing cement, coarse aggregate, fine aggregate and water according to actual needs. The preferred model in this embodiment is C30.

[0025] The cross-sectional shape of the pultruded fiber tube 2 is circular.

[0026] Example 2

[0027] This embodiment only provides the contents different from the embodiment 1, and the other similarities are not repeated here. Figure 3 The overall shape of the concrete composite column in this embodiment can be cylindrical, the cross-sectional shape of the pultruded fiber tube 2 is circular, and the cross-sectional shape of the concrete filling area 4 is circular.

[0028] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete composite column, comprising a pultruded fiber tube (2), an outer frame (3), and a concrete filling area (4), characterized in that: The outer frame (3) comprises longitudinal steel bars (31) and transverse stirrups (32), wherein the longitudinal steel bars (31) and the transverse stirrups (32) are arranged in a staggered manner. A core area (1) is arranged in the pultruded fiber tube (2), and the core area (1) is filled with phosphogypsum.

2. The concrete composite column according to claim 1, characterized in that: The concrete type filled in the concrete filling area (4) is C15 to C60.

3. The concrete composite column according to claim 1, characterized in that: The cross-sectional shape of the pultruded fiber tube (2) is circular.

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