CN217500786U

CN217500786U - Assembled steel beam combination fire prevention structure

Info

Publication number: CN217500786U
Application number: CN202220746170.4U
Authority: CN
Inventors: 于鹏; 贾仁勇; 张维喜; 高美
Original assignee: Zhejiang Dadi Steel Structure Co ltd; Longyuan Mingzhu Science And Technology Co ltd
Current assignee: Zhejiang Dadi Steel Structure Co ltd; Longyuan Mingzhu Science And Technology Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-09-27
Anticipated expiration: 2032-04-01

Abstract

The utility model relates to an assembled steel beam combination fire prevention structure relates to building engineering's technical field, it includes the girder steel, set up the mounting hole on the girder steel, wear to establish the connecting rod in the mounting hole, fixed mounting is at the mounting at connecting rod both ends, the PLASTIC LAMINATED of fixed mounting in the girder steel both sides and the fireproof paint layer of spraying at the girder steel outer wall, the connecting rod stretches in the both sides of girder steel, and the both ends of connecting rod are worn out from two PLASTIC LAMINATES respectively, the mounting supports tightly on the outer wall of PLASTIC LAMINATED. According to the steel beam fireproof treatment method, the fireproof coating layer and the fireproof plate are used for fireproof treatment of the steel beam, and the fireproof performance of the steel beam is improved; utilize the connecting rod to wearing the PLASTIC LAMINATED to use the mounting to lock the PLASTIC LAMINATED in the both sides of web, easy operation is convenient, the problem that the girder steel fire prevention processing work load is big, construction cycle is long has been improved.

Description

Assembled steel beam combination fire prevention structure

Technical Field

The application relates to the technical field of constructional engineering, in particular to an assembly type steel beam combined fireproof structure.

Background

The steel structure building is one of three major systems of assembly type buildings which clearly require development in China, has the advantages of high prefabrication and assembly rate, mature structural design and construction system, quick construction period, light dead weight, less waste discharge, good durability and the like, and has very wide application in the fields of industrial buildings and civil industrial buildings in China. In recent years, technical research and development and project demonstration of steel structures are emerging, and the steel structures become an important system and development direction in the field of assembly type buildings in China.

The steel beam of the steel structure building has poor fire resistance, and reliable fire prevention measures must be taken to improve the overall fire resistance of the member. The most common methods at present are a fireproof coating and a direct coating method of a fireproof plate, and can match the fireproof requirements of buildings. Namely, the outer surface of the steel structure is sprayed with fireproof paint or is coated with a fireproof plate so as to achieve the purpose of fire prevention.

Aiming at the related technologies, the inventor finds that when the steel beam in the related technologies is subjected to fire prevention treatment by using a fire-proof plate coating method, a light steel keel needs to be welded on the steel beam, and then the fire-proof plate is fixedly installed on the light steel keel by using bolts.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the girder steel fire prevention treatment work volume is big, construction cycle length, this application provides an assembled girder steel combination fire prevention structure.

The application provides a fabricated steel beam combination fire prevention structure adopts following technical scheme:

the utility model provides an assembled steel beam combination fire prevention structure, includes the girder steel, sets up mounting hole on the girder steel, wear to establish connecting rod, fixed mounting in the mounting hole are in the mounting and the fixed mounting at connecting rod both ends are in the PLASTIC LAMINATED of girder steel both sides, the connecting rod stretch in the both sides of girder steel, just two are followed respectively at the both ends of connecting rod the PLASTIC LAMINATED wears out, the mounting supports tightly on the outer wall of PLASTIC LAMINATED.

Through adopting above-mentioned technical scheme, when being fire prevention to the girder steel and handling, hug closely the PLASTIC LAMINATED respectively on the both sides wall of girder steel, then wear to establish the connecting rod and install in the mounting hole, the tip of connecting rod is worn out from the PLASTIC LAMINATED this moment, uses mounting and connecting rod fixed connection at last, compresses tightly the PLASTIC LAMINATED and fixes on the girder steel, realizes the fire prevention to the girder steel and handles. Through set up the mounting hole on the girder steel to wear to establish the connecting rod in the mounting hole, utilize the fixed fit of connecting rod and mounting, realize the fixed mounting of PLASTIC LAMINATED on the girder steel, realize the fire prevention to the girder steel and handle, need not to carry out fixed mounting to the girder steel through fossil fragments, the installation is simple and convenient, has improved the problem that girder steel fire prevention processing work volume is big, construction cycle is long.

Optionally, the girder steel includes parallel arrangement's top flange and bottom flange, and fixed connection be in the top flange with web between the bottom flange, the mounting hole is seted up on the web, the connecting rod stretch in the both sides of girder steel web, the outer wall of PLASTIC LAMINATED supports tightly the top flange the lateral wall that the bottom flange is close to each other and on the lateral wall of web.

Through adopting above-mentioned technical scheme, the PLASTIC LAMINATED is installed in the recess that top flange, bottom flange and web formed, and top flange, bottom flange and web carry out fixed stay to the PLASTIC LAMINATED jointly, have improved the stability of PLASTIC LAMINATED installation on the girder steel, have reduced the risk that PLASTIC LAMINATED and girder steel take place to break away from.

Optionally, the outer wall on the lower flange with the top flange all sprays fireproof coating layer.

Through adopting above-mentioned technical scheme, through the outer wall spraying fireproof coating layer at the girder steel, fireproof coating layer carries out the cladding to all the other outer walls that are not wrapped up by the PLASTIC LAMINATED of girder steel, further improves the fire behavior of girder steel.

Optionally, the fireproof plate is far away from the end face of the web plate is provided with an avoiding groove, the end part of the connecting rod penetrates into the avoiding groove, and the fixing part is abutted to the groove bottom of the avoiding groove.

Through adopting above-mentioned technical scheme, the tip of mounting and connecting rod is worn to establish and is dodged the inslot, dodges the groove and provides the accommodation space who holds the mounting, avoids mounting and connecting rod to wear out the PLASTIC LAMINATED, improves the clean and tidy degree on fire prevention processing back girder steel surface, the later stage decoration panel of being convenient for mat formation.

Optionally, the avoiding groove is filled with repair mortar.

By adopting the technical scheme, the avoiding groove is filled and sealed by using the repair mortar, and the connecting rod and the fixing piece are embedded in the fireproof plate by the repair mortar, so that the connecting strength of the fixing piece and the connecting rod is improved, and the fixing stability of the fixing piece and the connecting rod to the fireproof plate is improved; avoid connecting rod tip and mounting to expose outside, reduce connecting rod and mounting and receive the risk of corruption, improve the roughness on fire prevention treatment back girder steel surface, the later stage decoration panel of being convenient for mat formation.

Optionally, a bonding mortar layer is filled between the steel beam and the fireproof plate.

Through adopting above-mentioned technical scheme, combine the mortar layer to bond girder steel and PLASTIC LAMINATED fixed, further improve the joint strength between girder steel and the PLASTIC LAMINATED, reduce the risk that takes place to break away from between girder steel and the PLASTIC LAMINATED.

Optionally, the number of the connecting rods penetrating through any one of the fireproof plates is at least two.

Through adopting above-mentioned technical scheme, two and a plurality of connecting rod carry out fixed stay to the PLASTIC LAMINATED, have improved the stability that the PLASTIC LAMINATED is connected on the girder steel, reduce the risk that the PLASTIC LAMINATED rocked or take place to break away from on the girder steel, improve the fire prevention effect after the girder steel fire prevention is handled.

Optionally, the fire retardant panel is an ALC panel.

Through adopting above-mentioned technical scheme, ALC board self has good sound insulation, refractiveness, durability, frost resistance, impermeability, constructability, supporting nature, and the construction is simple and convenient, and the cost is low, and surface quality is good is difficult to the fracture for the girder steel after the fire prevention is handled possesses above-mentioned technological effect equally, and the construction is simple and convenient, and the weatherability is strong, is suitable for various environment, long service life.

In summary, the present application includes at least one of the following beneficial technical effects:

the steel beam is provided with the mounting hole, the connecting rod penetrates through the mounting hole, and the fixed mounting of the fireproof plate on the steel beam is realized by utilizing the fixed matching of the connecting rod and the fixing piece, so that the fireproof treatment of the steel beam is realized, the mounting is simple and convenient, and the problems of large workload and long construction period of the fireproof treatment of the steel beam are solved;

the fireproof coating layer is sprayed on the outer wall of the steel beam, and the fireproof coating layer coats the rest outer wall of the steel beam, which is not wrapped by the fireproof plate, so that the fireproof performance of the steel beam is further improved;

the avoiding groove is filled and sealed by using repair mortar, and the connecting rod and the fixing piece are embedded in the fireproof plate by using the repair mortar, so that the connecting strength of the fixing piece and the connecting rod is improved, and the fixing stability of the fixing piece and the connecting rod to the fireproof plate is improved; avoid connecting rod tip and mounting to expose outside, reduce connecting rod and mounting and receive the risk of corruption, improve the roughness on fire prevention treatment back girder steel surface, the later stage decoration panel of being convenient for mat formation.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram illustrating a mounting hole according to an embodiment of the present application.

Description of reference numerals: 1. a steel beam; 11. an upper flange; 12. a lower flange; 13. a web; 2. mounting holes; 3. a connecting rod; 4. a fixing member; 5. a fire-proof plate; 6. a fire retardant coating layer; 7. an avoidance groove; 8. repairing mortar; 9. and combining the mortar layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses assembled girder steel combination fire prevention structure.

Referring to fig. 1, an assembled steel beam combination fire prevention structure includes that girder steel 1, fixed mounting carry out fire protection to girder steel 1 jointly at the PLASTIC LAMINATED 5 and the application of 1 lateral wall of girder steel 6 of fireproof plate of girder steel 1 lateral wall, and 5 and fireproof paint layer realize handling the fire prevention of girder steel 1, improve girder steel 1's fire behavior.

The steel beam 1 comprises an upper flange 11 and a lower flange 12 which are arranged in parallel and a web 13 which is integrally formed between the upper flange 11 and the lower flange 12, and the steel beam 1 is H-shaped steel.

The terminal surface that top flange 11 and lower flange 12 are close to each other and the lateral wall of web 13 form two recesses, 5 fixed mounting of PLASTIC LAMINATED in the recess, and it has combination mortar layer 9 to fill between the cell wall of 5 outer walls of PLASTIC LAMINATED and recess, combines mortar layer 9 to bond PLASTIC LAMINATED 5 and fix in the recess of girder steel 1, improves the stability that PLASTIC LAMINATED 5 and girder steel 1 are connected.

Referring to fig. 1 and 2, a plurality of mounting holes 2 are opened along the length direction of the web 13, a connecting rod 3 is arranged in any one of the mounting holes 2, and fixing parts 4 are fixedly mounted at two ends of the connecting rod 3. Preferably, the connecting rod 3 is an M12 straight bolt, and the fixing member 4 is a washer nut screwed at both ends of the straight bolt.

The fire-proof plate 5 is an ALC plate, the ALC plate has good sound insulation, fire resistance, durability, frost resistance, impermeability, constructability and matching performance, the construction is simple and convenient, the manufacturing cost is low, the surface quality is good, the fire-proof plate 5 is not easy to crack, the fire-proof plate is integrated on the steel beam 1 to perform fire-proof treatment, and the processed steel beam 1 has the same technical effect. The end face, far away from the web 13, of each fireproof plate 5 is provided with a plurality of avoiding grooves 7, and preferably, the number of avoiding grooves 7 in any fireproof plate 5 is set to be 2.

The connecting rods 3 extend to two sides of the web plate 13, the end portions of the connecting rods 3 located on the same side penetrate through different avoidance grooves 7 of the same fireproof plate 5, the end portion of the other side penetrates through different avoidance grooves 7 of the other fireproof plate 5, the end face of the gasket nut abuts against the groove bottom of the avoidance groove 7, and reinforcement of the fireproof plate 5 on the steel beam 1 is achieved. And the avoiding groove 7 is filled with repair mortar 8, and the end face of the repair mortar 8 is flush with the outer end face of the fireproof plate 5. A plurality of connecting rods 3 carry out fixed connection to same PLASTIC LAMINATED 5, further improve the stability of PLASTIC LAMINATED 5 installation in girder steel 1. Repair mortar 8 and bury connecting rod 3 and mounting 4 in PLASTIC LAMINATED 5, avoid connecting rod 3 tip and mounting 4 to expose outside, reduce connecting rod 3 and mounting 4 and receive the risk of corruption, improve the roughness on 1 surperficial of girder steel after the fire prevention is handled, the later stage decoration panel of being convenient for mat formation. Utilize 3 mountings 4 of connecting rod to realize the installation of prefabricated PLASTIC LAMINATED 5 on girder steel 1, accomplished girder steel 1's fire prevention and handled, easy operation makes things convenient for construction period short, has improved the problem that girder steel 1 fire prevention processing work volume is big, construction period is long.

The fireproof coating layer 6 is gypsum-based fireproof coating, is sprayed on the end surface and two side walls of the lower flange 12 far away from the upper flange 11 and two side walls of the upper flange 11, and has a heat conductivity coefficient of 0.079. The place spraying fire protection coating of inconvenient installation PLASTIC LAMINATED 5 of girder steel 1 realizes the further fire protection to girder steel 1, improves girder steel 1's fire prevention treatment effeciency, improves the fire prevention effect. The gypsum-based fireproof coating has the advantages of rapider construction, no cracking, better fireproof performance, better friendliness and convenience for subsequent installation. Preferably, the thickness of the gypsum-based fireproof coating is 15-25 mm.

The implementation principle of the assembled steel beam combination fireproof structure in the embodiment of the application is as follows: when carrying out fire prevention processing to girder steel 1, at first full coat on the inside wall of girder steel 1 combines mortar 9, paste PLASTIC LAMINATED 5 tightly on the both sides wall of web 13, combine mortar layer 9 with PLASTIC LAMINATED 5 and girder steel 1 adhesive bonding, then use connecting rod 3 to pass PLASTIC LAMINATED 5 in proper order, web 13 and another PLASTIC LAMINATED 5, and use mounting 4 and the cooperation of connecting rod 3 to realize the further fixed of PLASTIC LAMINATED 5 in web 13 both sides, later pack in dodging groove 7 and repair mortar 8, bury mounting 4 in dodging groove 7 underground, improve the roughness on the back of handling girder steel 1 surface, it can all the other outer walls spraying fireproof paint layer 6 that are not covered by PLASTIC LAMINATED 5 at last.

The fireproof coating layer 6 and the fireproof plate 5 are used for carrying out fireproof treatment on the steel beam 1, so that the fireproof performance of the steel beam 1 is improved; connecting rod 3 is to wearing PLASTIC LAMINATED 5 to use mounting 4 to lock PLASTIC LAMINATED 5 in the both sides of web 13, easy operation is convenient, improved the problem that 1 fire prevention of girder steel handled work load is big, construction cycle is long.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an assembled girder steel combination fire prevention structure which characterized in that: including girder steel (1), set up mounting hole (2), wear to establish on girder steel (1) connecting rod (3), fixed mounting in mounting hole (2) are in mounting (4) and the fixed mounting at connecting rod (3) both ends are in PLASTIC LAMINATED (5) of girder steel (1) both sides, connecting rod (3) stretch in the both sides of girder steel (1), just two are followed respectively at the both ends of connecting rod (3) PLASTIC LAMINATED (5) are worn out, mounting (4) support tightly on the outer wall of PLASTIC LAMINATED (5).

2. The assembled steel beam combination fireproof construction of claim 1, wherein: girder steel (1) including parallel arrangement's top flange (11) and bottom flange (12), and fixed connection be in top flange (11) with web (13) between bottom flange (12), mounting hole (2) are seted up on web (13), connecting rod (3) stretch in the both sides of girder steel (1) web (13), the outer wall of PLASTIC LAMINATED (5) supports tightly top flange (11) the lateral wall that bottom flange (12) are close to each other and on the lateral wall of web (13).

3. The assembled steel beam combination fireproof construction of claim 2, wherein: and the outer walls of the lower flange (12) and the upper flange (11) are sprayed with fireproof coating layers (6).

4. The assembled steel beam combination fireproof construction of claim 2, wherein: keep away from PLASTIC LAMINATED (5) the terminal surface of web (13) has been seted up and has been dodged groove (7), the tip of connecting rod (3) is worn extremely in dodging groove (7), mounting (4) butt is in dodge the tank bottom of groove (7).

5. The assembled steel beam combination fireproof construction of claim 4, wherein: and the avoiding groove (7) is filled with repair mortar (8).

6. The assembled steel beam combination fireproof construction of claim 1, wherein: and a bonding mortar layer (9) is filled between the steel beam (1) and the fireproof plate (5).

7. The assembled steel beam combination fireproof construction of claim 1, wherein: the number of the connecting rods (3) penetrating through the fireproof plate (5) is at least two.

8. The assembled steel beam combination fireproof construction of claim 1, wherein: the fireproof plate (5) is an ALC plate.