High-temperature-resistant steel structural member

Abstract

The utility model relates to the technical field of building structures, in particular to a high-temperature-resistant steel structural member which comprises an I-shaped steel column, and a plurality of sets of connecting holes are formed in the surface of the I-shaped steel column. A first angle steel; the first angle steel is arranged on the front face and the back face of the lower end of the I-shaped steel column through locking nuts. The I-shaped steel column is sleeved with the high-strength steel sleeve, and the high-strength steel sleeve is fixed in the mode that a screw penetrates out of the connecting hole to be locked with a matched nut; the connecting plates are fixedly connected to the two sides of the high-strength steel sleeve; and the I-shaped steel beam is connected with the connecting plate in an inserting manner and is further fastened by a bolt. The fireproof plate and the rock wool material on the surface of the component are combined for use, a multi-layer fireproof heat insulation design is formed, a more durable heat insulation effect can be provided, the transmission speed of heat to an internal steel structure is remarkably reduced, in addition, the fireproof plate is assembled with the component in the mode that the clamping blocks are connected with the connecting holes and the clamping grooves in a clamped mode, the time of site construction is shortened, and the complexity of site construction is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of high-temperature-resistant steel structural member, belong to building structure technical field. BACKGROUND

[0002] Steel structural member is the structural assembly such as steel beam, steel column, steel truss made of section steel, steel plate etc., and is one of main building structure types, with its high strength, light weight, fast construction speed and the significant advantages such as reusability, is widely applied in modern building, bridge, industrial plant etc.

[0003] In high-temperature environment, steel structure material can occur thermal expansion, strength reduction, plastic deformation etc. Especially when temperature exceeds certain limit, yield strength and ultimate strength of steel will significantly drop, possibly leading to structural instability even collapse, in addition, high temperature can accelerate oxidation corrosion of steel, further weaken its mechanical properties, in order to improve the high-temperature-resistant performance of steel structure, traditional method is to coat fireproof paint, this kind of paint can expand and form heat insulation layer when encountering high temperature, thereby delaying heat transfer to steel interior, protect structure from high-temperature damage, but this protection mode has some deficiencies: 1, effective time of fireproof paint is limited, once exceeding its fire resistance limit, heat insulation layer fails, steel will be directly exposed to high-temperature environment;2, in long-term use process, fireproof paint can be aged or peeled off due to environmental factors, lose protection function, to maintain protection effect, fireproof paint must be regularly inspected and repaired, increase maintenance cost;3, construction of fireproof paint needs to strictly follow specific process requirements, to ensure that coating thickness is uniform and has no defect, which puts forward higher requirements to construction condition and technology.

[0004] Therefore, it is urgent to provide a kind of high-temperature-resistant steel structural member with persistent and efficient heat insulation, fireproof performance and convenient construction. SUMMARY

[0005] The utility model solves the technical problems: the way of traditional coating fireproof paint for heat insulation protection, the shortcomings of limited heat insulation effective time, poor fireproof effect and complex construction.

[0006] The utility model provides a kind of steel structural member of high temperature resistance to solve the above technical problems, including I-shaped steel column, the I-shaped steel column surface is equipped with multiple groups of connecting holes;First angle steel;The first angle steel is set in the front and back of the lower end of the I-shaped steel column by locking nut;High-strength steel sleeve, the high-strength steel sleeve is sleeved in the I-shaped steel column outside, and fixed by the screw rod and matched nut locking that passes out connecting hole;Connecting plate, the connecting plate is fixed to the high-strength steel sleeve both sides;I-shaped steel beam, the I-shaped steel beam is connected with the connecting plate plug-in, further fastened by bolt;Fireproof plate, the fireproof plate covers the I-shaped steel column surface and I-shaped steel beam top surface, front and back;Rock wool material, the rock wool material is laid as heat insulation layer on the back of the fireproof plate;Circular clamping block, the circular clamping block is fixed to the back of fireproof plate on I-shaped steel column, and is clamped with the connecting hole on the surface of the I-shaped steel column;Square clamping block, the square clamping block is fixed to the back of fireproof plate on the I-shaped steel beam, and is matched with the square clamping groove preset on the I-shaped steel beam.

[0007] The steel structural member of high temperature resistance, the I-shaped steel column and the I-shaped steel beam are made of high-temperature-resistant steel material.

[0008] The steel structural member of high temperature resistance further includes support steel plate, the support steel plate is arranged on the both sides of the I-shaped steel column, and the upper end is fixed to the bottom of I-shaped steel beam by T-type screw to support.

[0009] The steel structural member of high temperature resistance further includes second angle steel, and the second angle steel is fixed to the bottom end of the support steel plate.

[0010] The steel structural member of high temperature resistance further includes connecting rod, and the connecting rod is arranged at the lower end of the I-shaped steel column, and the both ends extend out of the I-shaped steel column and are connected with the second angle steel on both sides, and are locked by locking block.

[0011] The steel structural member of high temperature resistance further includes heat insulation plate, and the heat insulation plate covers the surface of the support steel plate.

[0012] The steel structural member of high temperature resistance further includes first expansion screw, and the first expansion screw is assembled on the first angle steel.

[0013] The steel structural member of high temperature resistance further includes second expansion screw, and the second expansion screw is assembled on the second angle steel.

[0014] The utility model discloses beneficial effect has: 1, through the component surface fireproof board and rock wool material combination use, form multilayer fireproof heat insulation design, can provide more durable heat insulation effect, the transmission rate of heat to interior steel structure is reduced significantly, in addition, the fireproof board adopts the mode of jointing block and connecting hole, card slot jointing and component assembly, reduce the time and complexity of on -the -spot construction.

[0015] 2, through the support of the support steel sheet of adding on the both sides of component, strengthen the connecting strength between I -steel column and I -steel beam, the rigidity and deformation resistance of whole structure are improved significantly, make component can effectively resist thermal expansion and plastic deformation under high temperature environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is the three-dimensional structure schematic diagram of I -steel column, high strength steel sleeve and I -steel beam and other parts of the utility model.

[0018] Figure 3 It is the partial sectional view of high strength steel sleeve, connecting plate and I -steel beam and other parts of the utility model.

[0019] Figure 4 It is the partial sectional view of I -steel column, I -steel beam and fireproof board and other parts of the utility model.

[0020] Figure 5 It is the three-dimensional sectional view of fireproof board, jointing block and rock wool material and other parts of the utility model.

[0021] Figure 6 It is the three-dimensional sectional view of I -steel column, support steel sheet and heat insulation plate and other parts of the utility model.

[0022] Figure 7 It is the partial sectional view of support steel sheet, T type screw frame and connecting rod and other parts of the utility model.

[0023] Marked in the drawing as: 1-I -steel column, 2-first angle steel, 3-high strength steel sleeve, 4-connecting plate, 5-screw rod, 6-nut, 7-I -steel beam, 8-bolt, 9-lock nut, 10-connecting hole, 11-fireproof board, 12-round jointing block, 1201-square jointing block, 13-rock wool material, 14-support steel sheet, 15-second angle steel, 16-T type screw, 17-connecting rod, 18-locking block, 19-heat insulation plate, 20-first expansion screw, 21-second expansion screw. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment 1: please refer to Figures 1-5 A high-temperature-resistant steel structural member, comprising an I-shaped steel column 1, three groups of connecting holes 10 are formed on the surface of the I-shaped steel column 1; a first angle steel 2; the first angle steel 2 is arranged on the front and back of the lower end of the I-shaped steel column 1 through a locking nut 9 to assist the installation of the I-shaped steel column 1; a first expansion screw 20 is assembled on the first angle steel 2, and the first expansion screw 20 is arranged to facilitate the connection of the first angle steel 2 with the ground or other components; a high-strength steel sleeve 3 is sleeved outside the I-shaped steel column 1, and is fixed by being locked through a screw rod 5 and a matched nut 6; two groups of connecting plates 4 are welded on the left and right sides of the high-strength steel sleeve 3; an I-shaped steel beam 7 is insertedly connected with the connecting plate 4 and is further fastened by a bolt 8 to realize stable connection, and the I-shaped steel column 1 and the I-shaped steel beam 7 are both made of high-temperature-resistant steel material to improve the high-temperature-resistant capability of the whole structure; a fireproof plate 11 covers the surface of the I-shaped steel column 1, the top surface, the front surface and the back surface of the I-shaped steel beam 7, is made of calcium silicate material and plays a fireproof protection role; a rock wool material 13 is laid on the back surface of the fireproof plate 11 as a heat insulation layer, the rock wool material 13 has good heat insulation and heat preservation properties and further improves the high-temperature-resistant performance of the structure; a circular clamping block 12 is welded on the back surface of the fireproof plate 11 on the I-shaped steel column 1 and is clamped with the connecting hole 10 on the surface of the I-shaped steel column 1; a square clamping block 1201 is welded on the back surface of the fireproof plate 11 on the I-shaped steel beam 7 and is matched with a square clamping groove preset on the I-shaped steel beam 7, and the design of the circular clamping block 12 and the square clamping block 1201 can ensure that the fireproof plate 11 is stably and correctly installed.

[0026] The high-temperature-resistant steel structural member assembly steps are as follows:

[0027] Step 1, first, the I-shaped steel column 1 is erected at a predetermined position, the first angle steel 2 is fixed on the front and back of the lower end of the I-shaped steel column 1 by using the locking nut 9, and the I-shaped steel column 1 is firmly connected with the ground or other components by using the second expansion screw 21, and the fixation of the I-shaped steel column 1 is completed.

[0028] Step 2, put on the high-strength steel sleeve 3, by inserting the screw rod 5 into the connecting hole 10 on the I-shaped steel column 1 and locking with the nut 6, to ensure that the high-strength steel sleeve 3 is firmly installed on the I-shaped steel column 1.

[0029] Step 3, the high-strength steel sleeve 3 with connecting plate 4 is inserted into the I-shaped steel beam 7, and then fastened with bolt 8, to realize the connection of I-shaped steel beam 7 and high-strength steel sleeve 3, and complete the basic assembly of steel structure components.

[0030] Step 4, finally, the fireproof plate 11 pre-laid with rock wool material 13 is installed on the surface of I-shaped steel column 1 and the top, front and back of I-shaped steel beam 7, and the round clamping block 12 and square clamping block 1201 are used to clamp with the connecting hole 10 and square slot on the I-shaped steel column 1 and I-shaped steel beam 7 respectively, to ensure the correct installation of the fireproof plate 11. Through the combination of fireproof plate 11 and rock wool material 13, an effective heat shield is formed, and through the fireproof plate 11, a strong physical fire protection is provided, and the rock wool is used to fill the gap between the fireproof plate 11 and the steel component, which enhances the overall heat insulation and fireproof performance, not only improves the high temperature resistance of steel structure components, but also provides additional safety protection and environmental protection measures.

[0031] Example 2: on the basis of example 1, please refer to Figure 6 and Figure 7 , also includes a support steel plate 14, which is arranged on the left and right sides of the I-shaped steel column 1, and the upper end is fixed on the bottom of the I-shaped steel beam 7 through T-shaped screw 16 for support; the second angle steel 15 is welded at the bottom end of the support steel plate 14; the connecting rod 17 is arranged at the lower end of the I-shaped steel column 1, and the two ends extend out of the I-shaped steel column 1 and connect with the second angle steel 15 on both sides, and are locked by locking block 18, so as to realize the connection of support steel plate 14 and I-shaped steel column 1; the heat insulation plate 19 covers the surface of the support steel plate 14, which provides additional fire protection for the support steel plate 14; the second expansion screw 21 is assembled on the second angle steel 15, which facilitates the connection of the second angle steel 15 with the ground or other components.

[0032] After the high-temperature-resistant steel structural member is integrally assembled, the support steel plate 14 with the second angle steel 15 welded in advance is placed on both sides of the I-shaped steel column 1, the connecting rod 17 is passed through the second angle steel 15 on both sides and the I-shaped steel column 1 in the middle, then the locking block 18 is used to lock the two ends of the connecting rod 17, the lower end of the support steel plate 14 is fixed and installed, then the upper end of the support steel plate 14 is fixed to the bottom of the I-shaped steel beam 7 by using the T-shaped bolt 8, the integral installation of the support steel plate 14 is completed, the I-shaped steel column 1 and the I-shaped steel beam 7 are supported by using the support steel plate 14, so that the connecting strength between the I-shaped steel column 1 and the I-shaped steel beam 7 is enhanced, the rigidity and the anti-deformation capability of the whole structure are improved, and especially in a high-temperature environment, thermal expansion and plastic deformation can be effectively resisted.

[0033] The above merely describes the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high-temperature-resistant steel structural member, characterized by comprising: Include: I-shaped steel column (1), the I-shaped steel column (1) surface is provided with multiple groups of connecting holes (10); First angle steel (2), the first angle steel (2) is provided on the front and back of the lower end of the I-shaped steel column (1) by lock nut (9); High-strength steel sleeve (3), the high-strength steel sleeve (3) is sleeved on the outside of the I-shaped steel column (1), and is fixed by screw rod (5) passing through connecting hole (10) and matched with screw nut (6) locking; Connecting plate (4), the connecting plate (4) is fixed to the both sides of the high-strength steel sleeve (3); I-shaped steel beam (7), the I-shaped steel beam (7) is connected with the connecting plate (4) by plug-in connection, and is further fastened by bolt (8); Fireproof plate (11), the fireproof plate (11) covers the surface of the I-shaped steel column (1) and the top surface, front surface and back surface of the I-shaped steel beam (7); Rock wool material (13), the rock wool material (13) is laid as a heat insulation layer on the back of the fireproof plate (11); Round clamping block (12), the round clamping block (12) is fixed to the back of the fireproof plate (11) on the I-shaped steel column (1), and is clamped with the connecting hole (10) on the surface of the I-shaped steel column (1); Square clamping block (1201), the square clamping block (1201) is fixed to the back of the fireproof plate (11) on the I-shaped steel beam (7), and matches with the square clamping groove preset on the I-shaped steel beam (7).

2. The high-temperature-resistant steel structural member according to claim 1, characterized by The I-shaped steel column (1) and the I-shaped steel beam (7) are made of high-temperature-resistant steel material.

3. The high-temperature-resistant steel structural member according to claim 2, characterized by It also includes support steel plate (14), which is provided on both sides of the I-shaped steel column (1), and its upper end is fixed to the bottom of the I-shaped steel beam (7) by T-type screw (16) for support.

4. The high-temperature-resistant steel structural member according to claim 3, characterized by It also includes second angle steel (15), which is fixed to the bottom end of the support steel plate (14).

5. The high-temperature-resistant steel structural member according to claim 4, characterized by It also includes connecting rod (17), which is provided at the lower end of the I-shaped steel column (1), and its both ends extend out of the I-shaped steel column (1) and are connected with the second angle steel (15) on both sides, and are locked by locking block (18).

6. The high-temperature-resistant steel structural member according to claim 5, wherein It also includes heat insulation plate (19), which covers the surface of the support steel plate (14).

7. The high-temperature-resistant steel structural member according to claim 6, characterized by It also includes first expansion screw (20), which is assembled on the first angle steel (2).

8. The high-temperature-resistant steel structural member according to claim 7, characterized by It also includes second expansion screw (21), which is assembled on the second angle steel (15).

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