A construction method for fireproofing, heat insulation and sound insulation of H-shaped steel beams

Abstract

The present invention belongs to the technical field of H-shaped fireproof, heat-insulating and sound-insulating steel beams, and particularly relates to a construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams, which includes preparing multiple interlayers - cleaning the surface of the H-shaped steel beam - installing each interlayer between the flanges of the H-shaped steel beam - spraying fireproof coating - and detecting after spraying; the interlayer is a fireproof, heat-insulating and sound-insulating board; each interlayer is installed between the flanges of the H-shaped steel beam through a connecting buckle of a layer-like object; compared with the prior art, the construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams of the present invention (1) changes from the traditional installation of fireproof, heat-insulating and sound-insulating fillers using adhesives to the installation using a connecting buckle of a layer-like object, greatly reducing the amount of adhesives used, being more friendly to the indoor environment of the building, and at the same time saving the time for waiting for the adhesives on the interlayer (fireproof, heat-insulating and sound-insulating filler) to dry, improving the construction efficiency; (2) the connecting buckle of the layer-like object has a stable and reliable connection to adjacent interlayers, and the second engaging tooth can cooperate with the first engaging tooth to limit the first clamping plate.

Description

Technical Field

[0001] The invention belongs to the technical field of H-shaped fireproof, heat-insulating and sound-insulating steel beams, and particularly relates to a construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams. Background Art

[0002] In steel structure buildings, H-shaped steel members have become an important component of the building steel structure system due to their reasonable cross-section economy, excellent performance, simple, convenient and fast processing, manufacturing, construction and installation processes. They account for more than 80% and are widely used in various fields of national economic construction, such as load-bearing frame beams and columns in industrial factories, especially heavy industrial factories, and the steel structure prefabricated housing system strongly advocated by the country. However, when applying H-shaped steel members to prefabricated structure houses, the disadvantages are poor fire resistance (strength reduction and creep phenomena occur under high-temperature conditions) and poor sound insulation effect.

[0003] In order to improve the fire resistance and sound insulation performance of H-shaped steel beams, it is necessary to install fireproof, heat-insulating and sound-insulating fillers in the H-shaped steel beams and spray fireproof coatings on the outer surface of the H-shaped steel beams. In the prior art, in order to avoid damaging the H-shaped steel beams and avoiding stress concentration, drilling and welding are generally not allowed on the H-shaped steel beams, but a wet construction method is adopted, that is, adhesives are applied to the upper and lower surfaces of the fireproof, heat-insulating and sound-insulating fillers, and then the fireproof, heat-insulating and sound-insulating fillers are installed between the wing plates of the H-shaped steel beams by using the adhesives.

[0004] In the prior art, using adhesives to install fireproof, heat-insulating and sound-insulating fillers results in a large amount of adhesives in the H-shaped steel beams, and it is easy to exceed the standard of formaldehyde in the building internal environment. At the same time, after using adhesives to install fireproof, heat-insulating and sound-insulating fillers, a process of drying the adhesives must be experienced, and during the drying process, observation is required to ensure that there are no cracks at the bonding parts between the H-shaped steel members and the fireproof, heat-insulating and sound-insulating fillers. Summary of the Invention

[0005] The invention aims at the above problems and provides a construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams.

[0006] To achieve the above purpose, the technical solution adopted by the invention is: a construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams, including preparing a plurality of interlayers - cleaning the surface of the H-shaped steel beam - installing each interlayer between the wing plates of the H-shaped steel beam - spraying fireproof coatings - detecting after spraying; the interlayer is a fireproof, heat-insulating and sound-insulating board; and each interlayer is installed between the wing plates of the H-shaped steel beam through a layer connection buckle.

[0007] The layer connection buckle includes a chassis, a plug board, and a first clamping plate; the plug board is fixedly connected to the surface of the chassis, the plug board is perpendicular to the chassis, and a plurality of first locking teeth are evenly fixed along the length direction of the plug board; a slot is provided on the first clamping plate, and the plug board can pass through the slot; the first clamping plate can move unidirectionally along the plug board towards the chassis direction; a second locking tooth is fixed on the first clamping plate;

[0008] The side of the chassis away from the plug board is bonded to the surface of the web of the H-shaped steel beam through an adhesive; the plug board is perpendicular to the web and the flange of the H-shaped steel beam; the end of the sandwich in the length direction is installed between the chassis and the first clamping plate, and two adjacent sandwiches are connected by the layer connection buckle; the second locking tooth can cooperate with the first locking tooth to limit the first clamping plate; the outer surface of the installed sandwich is flush with the side surface of the flange of the H-shaped steel beam.

[0009] Preferably, a clamping plate is fixed on the surface of the first clamping plate facing the chassis, and the clamping plate is parallel to the plug board; the clamping plate is at the edge of the slot; one or more second locking teeth are fixed on the surface of the clamping plate close to the slot, and the second locking teeth face the slot.

[0010] Preferably, the layer connection buckle further includes a second clamping plate, and the shape and specifications of the second clamping plate are the same as those of the first clamping plate; the end of the sandwich in the length direction is installed between the second clamping plate and the first clamping plate.

[0011] Preferably, the side of the plug board is marked with scales.

[0012] Preferably, the outer surface of the first clamping plate is flush with the side surface of the flange of the H-shaped steel beam; the layer connection buckle is made of polymer material, and the part of the plug board extending beyond the flange of the H-shaped steel beam is cut off.

[0013] Preferably, a plurality of the sandwiches are installed in sequence along the length direction of the H-shaped steel beam, and the layer connection buckle is installed at the joint of two adjacent sandwiches.

[0014] Preferably, the sandwich is a cut EPS board, XPS board, vitrified microbead inorganic board, or rock wool board.

[0015] Preferably, the corresponding part of the sandwich and the first clamping plate is polished.

[0016] Preferably, the outer surfaces of the H-shaped steel beam, the sandwich, and the first clamping plate are all sprayed with gypsum-based non-expansive steel structure fireproof coating.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0018] (1) The construction method of fireproof, heat-insulating and sound-insulating H-shaped steel beams of the present invention is changed from the traditional wet construction (installing fireproof, heat-insulating and sound-insulating fillers using adhesives) to installing using layer connection buckles, which greatly reduces the amount of adhesives used, is more friendly to the indoor environment of buildings, and at the same time saves the time for waiting for the adhesives on the interlayer (fireproof, heat-insulating and sound-insulating fillers) to dry, improving the construction efficiency;

[0019] (2) The layer connection buckle has a stable and reliable connection to adjacent interlayers, and the second buckle teeth can cooperate with the first buckle teeth to limit the first splint;

[0020] (3) The corresponding parts of the interlayer and the first splint are polished to ensure that the outer surface of the installed interlayer is flush with the side surface of the flange of the H-shaped steel beam;

[0021] (4) The side of the insertion plate is marked with scales, so the layer connection buckle can be used to completely fill the cavity between the flanges of the H-shaped steel beam or to achieve partial filling, that is, only fill the part close to the outside in the cavity;

[0022] (5) The layer connection buckle is made of polymer material. Cut off the part of the insertion plate that exceeds the flange of the H-shaped steel beam to ensure that the outer surface of the filled H-shaped steel beam is straight. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments:

[0024] Figure 1 Schematic diagram after pasting the layer connection buckle to the web of the H-shaped steel beam;

[0025] Figure 2 Schematic diagram of installing the interlayer to the H-shaped steel beam using the layer connection buckle;

[0026] Figure 3 Schematic diagram of the layer connection buckle;

[0027] Figure 4 Schematic diagram of the insertion plate and the first buckle teeth of the layer connection buckle;

[0028] Figure 5 Schematic diagram of the first splint of the layer connection buckle Figure 1 ;

[0029] Figure 6 Schematic diagram of the first splint of the layer connection buckle Figure 2 ;

[0030] Figure 7 Schematic diagram of the cooperation between the first buckle teeth and the second buckle teeth in the layer connection buckle to limit the first splint.

[0031] Description of the Reference Numerals:

[0032] 1 - H - shaped steel beam;

[0033] 2 - Layer connection buckle, 21 - Chassis, 22 - Insertion plate, 221 - First buckle tooth, 23 - First clamping plate, 231 - Buckle plate, 232 - Slot, 233 - Second buckle tooth, 24 - Second clamping plate;

[0034] 3 - Interlayer. Specific implementation mode

[0035] In order to more clearly understand the above - mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments.

[0036] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0037] Embodiment 1

[0038] The following combines the attached Figures 1-7 To further describe the present invention, the technical solution adopted by the present invention to solve its technical problems is:

[0039] A construction method for fire - prevention, heat - insulation and sound - insulation of H - shaped steel beams, as Figure 1 and Figure 2 shown, includes preparing multiple interlayers 3 - surface cleaning of H - shaped steel beam 1 - installing each interlayer 3 between the flanges of H - shaped steel beam 1 - spraying fire - retardant coating - detecting after spraying; the interlayer 3 is a fire - prevention, heat - insulation and sound - insulation board. Each interlayer 3 is installed between the flanges of H - shaped steel beam 1 through the layer connection buckle 2. Figure 1 What is shown in is the longitudinal section of the interlayer 3, and the physical object of the interlayer 3 is strip - shaped.

[0040] As Figure 3 shown, the layer connection buckle 2 includes a chassis 21, an insertion plate 22 and a first clamping plate 23.

[0041] As Figure 4 shown, the insertion plate 22 is fixedly connected to the surface of the chassis 21, the insertion plate 22 is perpendicular to the chassis 21, and a plurality of first buckle teeth 221 are evenly fixedly arranged along the length direction of the insertion plate 22.

[0042] As Figure 5 and Figure 6 shown, the first clamping plate 23 is provided with a slot 232, and the insertion plate 22 can pass through the slot 232; the first clamping plate 23 can move unidirectionally along the insertion plate 22 towards the chassis 21 direction; a second buckle tooth 233 is fixedly arranged on the first clamping plate 23.

[0043] As Figure 1 andFigure 2 As shown, one side of the chassis 21 away from the plug-in plate 22 is adhesively bonded to the surface of the web of the H-shaped steel beam 1; the plug-in plate 22 is perpendicular to the web and the flange of the H-shaped steel beam 1; the end of the sandwich 3 in the length direction is installed between the chassis 21 and the first clamping plate 23; as Figure 7 shown, two adjacent sandwiches 3 are connected by a layer connection buckle 2; the second buckle teeth 233 can cooperate with the first buckle teeth 221 to limit the position of the first clamping plate 23 (the inner side of the first clamping plate 23 contacts the sandwich 3, and the first clamping plate 23 cannot move outward due to the cooperation between the second buckle teeth 233 and the first buckle teeth 221); the outer surface of the installed sandwich 3 is flush with the side surface of the flange of the H-shaped steel beam 1, which is convenient for subsequent spraying of fireproof coating.

[0044] As Figure 7 shown, on the surface of the first clamping plate 23 facing the chassis 21, a buckle plate 231 is fixedly provided, and the buckle plate 231 is parallel to the plug-in plate 22; the buckle plate 231 is at the edge of the slot 232; one or more second buckle teeth 233 are fixedly provided on the surface of the buckle plate 231 close to the slot 232, and the second buckle teeth 233 face the slot 232.

[0045] As Figures 1-3 shown, the layer connection buckle 2 further includes a second clamping plate 24, and the shape and specifications of the second clamping plate 24 are the same as those of the first clamping plate 23; the end of the sandwich 3 in the length direction is installed between the second clamping plate 24 and the first clamping plate 23.

[0046] The side of the plug-in plate 22 is marked with scales.

[0047] As Figure 1 and Figure 2 shown, the outer surface of the first clamping plate 23 is flush with the side surface of the flange of the H-shaped steel beam 1; the layer connection buckle 2 is made of polymer material, and the part of the plug-in plate 22 exceeding the flange of the H-shaped steel beam 1 is cut off.

[0048] A plurality of sandwiches 3 are sequentially installed along the length direction of the H-shaped steel beam 1, and a layer connection buckle 2 is installed at the connection of two adjacent sandwiches 3.

[0049] In this embodiment, the sandwich 3 is a cut EPS board.

[0050] The corresponding part of the sandwich 3 and the first clamping plate 23 is polished to ensure that the outer surface of the installed sandwich 3 is flush with the side surface of the flange of the H-shaped steel beam 1.

[0051] Gypsum-based non-expanding steel structure fireproof coating is sprayed on the outer surfaces of the H-shaped steel beam 1, the sandwich 3 and the first clamping plate 23.

[0052] The surface of the H-shaped steel beam 1 is cleaned and degreased.

[0053] Embodiment 2

[0054] The difference between this embodiment and Embodiment 1 is that: a plurality of second locking teeth 233 are fixedly arranged on the surface of the buckling plate 231 close to the slot 232. The interlayer 3 is a cut XPS board.

[0055] As described above, it is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification and equivalent change made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A construction method for fire prevention, heat insulation and sound insulation of H-shaped steel beams, including preparing multiple interlayers (3) - cleaning the surface of the H-shaped steel beam (1) - installing each interlayer (3) between the flanges of the H-shaped steel beam (1) - spraying fireproof coating - detecting after spraying; the interlayer (3) is a fireproof, heat-insulating and sound-insulating board, characterized in that, Each sandwich layer (3) is installed between the flanges of the H-shaped steel beam (1) through the laminate connection buckle (2). The laminate connection buckle (2) includes a chassis (21), a plug board (22) and a first clamping plate (23); the plug board (22) is fixedly connected to the surface of the chassis (21), the plug board (22) is perpendicular to the chassis (21), and a plurality of first locking teeth (221) are evenly fixed along the length direction of the plug board (22); the first clamping plate (23) is provided with a slot (232), and the plug board (22) can pass through the slot (232); the first clamping plate (23) can move unidirectionally along the plug board (22) towards the chassis (21); a second locking tooth (233) is fixed on the first clamping plate (23). One side of the chassis (21) away from the plug board (22) is bonded to the web surface of the H-shaped steel beam (1) through an adhesive; the plug board (22) is perpendicular to the web and the flange of the H-shaped steel beam (1); the end of the sandwich layer (3) in the length direction is installed between the chassis (21) and the first clamping plate (23), and two adjacent sandwich layers (3) are connected through the laminate connection buckle (2); the second locking tooth (233) can cooperate with the first locking tooth (221) to limit the first clamping plate (23); the outer surface of the installed sandwich layer (3) is flush with the side surface of the flange of the H-shaped steel beam (1).

2. The construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams according to claim 1, characterized in that, A clamping plate (231) is fixed on the surface of the first clamping plate (23) facing the chassis (21), and the clamping plate (231) is parallel to the plug board (22); the clamping plate (231) is located at the edge of the slot (232); one or more second locking teeth (233) are fixed on the surface of the clamping plate (231) close to the slot (232), and the second locking teeth (233) face the slot (232).

3. The construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams according to claim 2, characterized in that, The laminate connection buckle (2) further includes a second clamping plate (24), and the shape and specifications of the second clamping plate (24) are the same as those of the first clamping plate (23); the end of the sandwich layer (3) in the length direction is installed between the second clamping plate (24) and the first clamping plate (23).

4. The construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams according to claim 1 is characterized in that, The side surface of the plug board (22) is marked with scales.

5. The construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams according to claim 3, characterized in that, The outer surface of the first clamping plate (23) is flush with the side surface of the flange of the H-shaped steel beam (1); the laminate connection buckle (2) is made of polymer material, and the part of the plug board (22) extending beyond the flange of the H-shaped steel beam (1) is cut off.

6. The construction method for fire prevention, heat insulation and sound insulation of H-shaped steel beams according to claim 1, characterized in that, A plurality of the sandwich layers (3) are sequentially installed along the length direction of the H-shaped steel beam (1), and the laminate connection buckle (2) is installed at the joint of two adjacent sandwich layers (3).

7. The construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams according to claim 1, characterized in that, The sandwich layer (3) is a cut EPS board, XPS board, vitrified microbead inorganic board or rock wool board.

8. The construction method for fireproof, heat-insulating and sound-insulating of H-shaped steel beams according to claim 5, characterized in that, The corresponding part of the sandwich layer (3) and the first clamping plate (23) is polished.

9. The construction method for fireproof, heat-insulating and sound-insulating H-shaped steel beams according to claim 5 or 8, characterized in that The outer surfaces of the H-shaped steel beam (1), the sandwich layer (3) and the first clamping plate (23) are all sprayed with gypsum-based non-expansive steel structure fireproof coating.

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