High-temperature-resistant fiber reinforced concrete profile steel combination column

Abstract

The utility model discloses a high-temperature-resistant fiber reinforced concrete section steel combination column, which relates to the technical field of concrete section steel combination columns and comprises two fireproof shells, connecting plates are arranged on the side surfaces of the fireproof shells, heat-proof layers are fixedly connected to the inner sides of the fireproof shells, and fiber reinforced pipes are fixedly connected to the inner sides of the heat-proof layers. A profile steel body is arranged between the two fiber reinforced pipes, and a concrete body is arranged between the two fiber reinforced pipes. According to the utility model, through the cooperation of the fiber reinforced pipe, the profile steel body, the longitudinal steel bars, the stirrups and the prompt board, the concrete body can be well supported and protected when the device is used, and the node of the concrete body is treated when the concrete body is poured; the problems that a steel reinforced concrete column is low in node bearing capacity, prone to cracking and insufficient in earthquake resistance are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete-steel combination, and more specifically to a high-temperature resistant fiber-reinforced concrete-steel combination column. Background Art

[0002] The hybrid structure of steel-concrete column and steel beam has the characteristics of high bearing capacity and good seismic performance. However, when the steel-concrete column is connected to the steel beam, the core area of ​​the node needs to be arranged with denser stirrups to constrain the concrete and ensure that the longitudinal steel bars, steel and concrete work together. The arrangement of stirrups in the core area of ​​the node requires drilling holes in the steel beam, which weakens the bearing capacity of the steel beam. At the same time, the density of stirrups makes it difficult to pour and vibrate the concrete in the core area of ​​the node, making it difficult to ensure the quality of the concrete pouring in the core area of ​​the node, resulting in reduced bearing capacity of the node, easy cracking, and insufficient seismic performance.

[0003] In the Chinese invention patent application No. 201110050228.8, a fiber reinforced plastic-steel composite tube constrained steel high-strength concrete column is disclosed, which includes longitudinal reinforcement, stirrups, high-strength concrete, steel and fiber reinforced plastic-steel composite tube. The fiber reinforced plastic-steel composite tube constrained steel high-strength concrete column solves the problems of large steel consumption and troublesome connection with reinforced concrete beams in steel tube steel high-strength concrete columns. However, when the device is in use, the fiber reinforced plastic tube is located at the outermost part and cannot effectively isolate the external high temperature. When in use, the concrete temperature inside it is easy to rise and crack.

[0004] Therefore, it is necessary to propose a high temperature resistant fiber reinforced concrete steel composite column to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to solve the problems that the nodes of steel-concrete columns are prone to cracking and have insufficient seismic resistance, and that the steel-concrete columns cannot be effectively protected and insulated when affected by the outside world, thereby causing the concrete temperature to rise and crack. The utility model provides a high-temperature resistant fiber-reinforced concrete-steel composite column.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0009] A high-temperature resistant fiber-reinforced concrete-steel composite column comprises two fireproof shells, the sides of the fireproof shells are provided with connecting plates, the inner sides of the fireproof shells are fixedly connected with a heat-proof layer, the inner sides of the heat-proof layer are fixedly connected with a fiber-reinforced tube, a steel body is provided between the two fiber-reinforced tubes, a concrete body is provided between the two fiber-reinforced tubes, a sliding groove is provided on the side of one of the fiber-reinforced tubes and a plurality of lifting blocks are slidably connected thereto.

[0010] Furthermore, the material of the fireproof shell is a flame-retardant material, and the exterior of the fireproof shell is provided with a fireproof coating, so that the fiber-reinforced layer can be prevented from burning.

[0011] Furthermore, threaded holes are provided on the sides of the connection plate and the fireproof shell, and the two fireproof shells are fixedly connected by the connection plate and bolts, and the two fireproof shells can be fixed by the mounting plate.

[0012] Furthermore, the heat-proof layer is made of rock wool material, and the heat-proof layer can prevent the concrete body from being overheated.

[0013] Furthermore, the steel body is located inside the concrete body, and a plurality of longitudinal steel bars are arranged inside the concrete body. Stirrups are fixedly connected to the outer sides of the plurality of longitudinal steel bars. There are a plurality of stirrups, and the stability of the device can be increased by the longitudinal steel bars and stirrups.

[0014] Furthermore, a prompt plate is fixedly connected to the side of the lifting block, and the colors of the plurality of prompt plates are inconsistent, and the position of the node can be determined through the prompt plate.

[0015] Furthermore, sealing grooves are provided on both sides of one of the fiber-reinforced tubes, and sealing plates matching the sealing grooves are fixedly connected to both sides of the other fiber-reinforced tube, and the concrete body can be blocked by the sealing plates.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The utility model, through the cooperation among the fiber reinforced tube, the steel body, the longitudinal steel bar, the stirrup and the prompt plate, can make the device better support and protect the concrete body when in use and process the nodes when pouring the concrete body, effectively solving the problem of low bearing capacity, easy cracking and insufficient seismic resistance of the nodes of the steel concrete column.

[0019] 2. The utility model, through the cooperation between the fireproof outer shell and the heat-proof layer, can block the external fire source when in use, and isolate the heat generated by the fire source, effectively solving the problem that the steel concrete column cannot be effectively protected and insulated when affected by the outside world, which leads to the increase of concrete temperature and cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic axial view of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structural steel body of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of a fiber reinforced tube of the utility model structure;

[0023] Figure 4 It is a cross-sectional schematic diagram of the fireproof shell of the utility model structure.

[0024] Figure numerals: 1. fireproof shell; 2. connecting plate; 3. heat protection layer; 4. fiber reinforced tube; 5. steel body; 6. concrete body; 7. longitudinal reinforcement; 8. stirrups; 9. lifting block; 10. prompt plate; 11. sealing groove; 12. sealing plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-3A high temperature resistant fiber reinforced concrete steel composite column comprises two fireproof shells 1, characterized in that: a connecting plate 2 is provided on the side of the fireproof shell 1, a heat protection layer 3 is fixedly connected to the inner side of the fireproof shell 1, a fiber reinforced tube 4 is fixedly connected to the inner side of the heat protection layer 3, a steel body 5 is provided between the two fiber reinforced tubes 4, a concrete body 6 is provided between the two fiber reinforced tubes 4, a sliding groove is provided on the side of one of the fiber reinforced tubes 4 and a plurality of lifting blocks 9 are slidably connected, the steel body 5 is located inside the concrete body 6, a plurality of longitudinal steel bars 7 are provided inside the concrete body 6, and the outer sides of the plurality of longitudinal steel bars 7 are fixed It is connected with stirrups 8, and the number of stirrups 8 is multiple. A prompt plate 10 is fixedly connected to the side of the lifting block 9, and the colors of the multiple prompt plates 10 are inconsistent. Sealing grooves 11 are opened on both sides of one fiber reinforced tube 4, and sealing plates 12 matched with the sealing grooves 11 are fixedly connected on both sides of the other fiber reinforced tube 4. Through the cooperation between the two fiber reinforced tubes 4, the sealing plates 12 and the sealing grooves 11, the device can wrap the stirrups 8 from both sides of the stirrups 8 when in use, which effectively solves the problem that the fiber reinforced tube 4 needs to be sleeved on the outside of the stirrup 8, and it is not easy to sleeve the fiber reinforced tube 8 on the top of the stirrup 8 during sleeve connection.

[0028] In this embodiment, through the coordination among the fiber reinforced tube 4, the steel body 5, the longitudinal steel bar 7, the stirrups 8 and the reminder plate 10, the device can better support and protect the concrete body 6 when in use and process the nodes when pouring the concrete body 6, thereby effectively solving the problem of low bearing capacity, easy cracking and insufficient seismic resistance of the nodes of the steel concrete column.

[0029] Example 2

[0030] See also Figure 1 and 4 This embodiment is further optimized on the basis of embodiment 1. Specifically, the material of the fireproof shell 1 is flame retardant material, the outside of the fireproof shell 1 is provided with fire retardant coating, threaded holes are provided on the sides of the connecting plate 2 and the fireproof shell 1, the two fireproof shells 1 are fixedly connected by the connecting plate 2 and bolts, and the heat-proof layer 3 is composed of rock wool material.

[0031] In this embodiment, the cooperation between the fireproof shell 1 and the heat-proof layer 3 can enable the device to block external fire sources when in use and isolate the heat generated by the fire source, effectively solving the problem that the steel-concrete column cannot be effectively protected and insulated when affected by the outside world, thereby causing the concrete temperature to rise and crack.

[0032] Working principle: When in use, the longitudinal steel bars 7 are distributed on the four sides of the steel body 5, and then the multiple longitudinal steel bars 7 are fixed by stirrups 8. After fixing, the position of the lifting block 9 is adjusted so that the prompt plate 10 is located at the node position, and then the two fireproof shells 1 are pushed to make the fiber reinforced tube 4 wrap the stirrups 8. When wrapping, the sealing plate 12 enters the inside of the sealing groove 11, and then the connecting plate 2 is fixedly connected to the two fireproof shells 1 by bolts to fix the two fireproof shells 1, and then the concrete body 6 can be poured between the two fiber reinforced tubes 4. During pouring, the pouring position can be determined according to the position of the prompt plate 10 until the node position.

[0033] In summary: the utility model, through the cooperation between the fiber reinforced tube 4, the steel body 5, the longitudinal steel bar 7, the stirrup 8 and the prompt plate 10, can make the device better support and protect the concrete body 6 when in use, and treat its nodes when pouring the concrete body 6, effectively solving the problem that the nodes of the steel concrete column have low bearing capacity, easy cracking and insufficient earthquake resistance. Through the cooperation between the fireproof shell 1 and the heat-proof layer 3, the device can block external fire sources when in use and isolate the heat generated by the fire source, effectively solving the problem that the steel concrete column cannot be effectively protected and insulated when affected by the outside world, thereby causing the concrete temperature to rise and crack.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high temperature resistant fiber reinforced concrete steel composite column, comprising two fireproof shells (1), characterized in that: A connecting plate (2) is provided on the side of the fireproof outer shell (1), a heat-proof layer (3) is fixedly connected to the inner side of the fireproof outer shell (1), a fiber-reinforced tube (4) is fixedly connected to the inner side of the heat-proof layer (3), a steel body (5) is provided between two of the fiber-reinforced tubes (4), a concrete body (6) is provided between the two fiber-reinforced tubes (4), and a sliding groove is provided on the side of one of the fiber-reinforced tubes (4) and is slidably connected to a plurality of lifting blocks (9).

2. The high temperature resistant fiber reinforced concrete steel composite column according to claim 1, characterized in that: The material of the fireproof outer shell (1) is a flame retardant material, and the exterior of the fireproof outer shell (1) is provided with a fireproof coating.

3. The high temperature resistant fiber reinforced concrete steel composite column according to claim 1, characterized in that: The connecting plate (2) and the side surfaces of the fireproof outer shell (1) are both provided with threaded holes, and the two fireproof outer shells (1) are fixedly connected via the connecting plate (2) and bolts.

4. The high temperature resistant fiber reinforced concrete steel composite column according to claim 1, characterized in that: The heat protection layer (3) is made of rock wool material.

5. The high temperature resistant fiber reinforced concrete steel composite column according to claim 1, characterized in that: The steel body (5) is located inside the concrete body (6), a plurality of longitudinal steel bars (7) are arranged inside the concrete body (6), stirrups (8) are fixedly connected to the outer sides of the plurality of longitudinal steel bars (7), and the number of the stirrups (8) is plural.

6. The high temperature resistant fiber reinforced concrete steel composite column according to claim 1, characterized in that: A prompt plate (10) is fixedly connected to the side of the lifting block (9), and the colors of the plurality of prompt plates (10) are inconsistent.

7. The high temperature resistant fiber reinforced concrete steel composite column according to claim 1, characterized in that: One of the fiber-reinforced tubes (4) is provided with sealing grooves (11) on both sides, and the other fiber-reinforced tube (4) is fixedly connected with sealing plates (12) matching the sealing grooves (11) on both sides.

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