A construction structure and method for residential exterior thermal insulation rock wool board and fireproof and soundproofing package

Abstract

The invention discloses a construction structure and method for a residential exterior thermal insulation rock wool board and fireproof and soundproof encapsulation, wherein the outer side of the I-beam of the steel structure is installed with a thermal insulation rock wool board through an inverted T-shaped galvanized steel plate, and the inner side is installed with a flame retardant plate of an encapsulation structure through a U-shaped plate, the horizontal plate of the inverted T-shaped galvanized steel plate is fixedly connected to the lower wing plate of the I-beam, and the vertical plate extends upward, and the outer belly of the I-beam is filled with fireproof and soundproof rock wool, the thermal insulation rock wool board is fixed to the outer side of the vertical plate of the inverted T-shaped galvanized steel plate through anchor bolts, the U-shaped plate is fixedly arranged at the bottom of the lower wing plate of the I-beam, the outer end of each U-shaped plate is connected with a lower keel, the bottom of the top wall is installed with an upper keel, the side flame retardant plate is installed between the lower keel and the upper keel, the bottom flame retardant plate is installed at the bottom of the lower keel, and the flame retardant plate is filled with fireproof and soundproof rock wool. This construction structure and method have high fixing strength for the thermal insulation rock wool board, are convenient for the pre-buried pipe of the pipeline to pass through, and the construction process is simple and easy.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular provides a construction structure and method for external thermal insulation rock wool panels and fireproof and soundproof encapsulation of assembled steel structure houses. Background Art

[0002] During the construction of prefabricated steel structure houses, the anchoring of thermal insulation rock wool boards in the exterior wall insulation system is a key process in the construction of thermal insulation rock wool boards. In the reinforced concrete frame shear wall structure of traditional houses, thermal insulation rock wool boards are generally anchored by "adhesive + anchor bolts". However, in prefabricated steel structure houses, the thermal insulation rock wool boards at the I-beams cannot be directly anchored by the above method. The thermal insulation rock wool boards can only be bonded to the outer side of the wing plate of the I-beams with adhesives. The bonding surface is small and the bonding is not strong. The structural strength of the thermal insulation rock wool boards installed at the I-beams cannot be guaranteed, and the thermal insulation rock wool boards and I-beams are prone to cracking.

[0003] At the same time, for prefabricated steel structure houses, I-beams have strict fire prevention and sound insulation requirements. The general construction practice at this stage is to spray the steel beams with fire retardant coating, fill them with fire-proof and sound-insulating rock wool, and then carry out plastering construction. With this construction method, the pre-buried pipes on the roof top wall cannot pass through the I-beams and enter the wall to lead to the electrical switch control box, which causes serious difficulties for the interior decoration of steel structure houses and affects the overall decoration effect. In addition, the internal and external construction structures of the I-beams cannot be tightly connected with the doors and windows to form an overall structure, and the "thermal bridge" phenomenon is prone to occur, affecting the living comfort. Summary of the invention

[0004] Based on this, the present invention provides a construction structure and method for external thermal insulation rock wool boards and fireproof and soundproof enclosures of prefabricated steel structure houses, so that the thermal insulation rock wool boards on the outside of the I-beam are firmly connected, and a fireproof enclosure structure is formed on the inside to facilitate the passage of pre-buried pipelines on the roof top wall, and the construction structures on the outside and inside of the I-beam are integrated to avoid the "thermal bridge" phenomenon and improve the decorative aesthetics.

[0005] In order to achieve the above-mentioned purpose, in the first aspect, the present invention provides a construction structure of an external thermal insulation rock wool board and a fireproof and soundproof enclosure for a prefabricated steel structure residential building, wherein the outer side of the I-beam of the steel structure is installed with a thermal insulation rock wool board through an inverted T-shaped galvanized steel plate, and the inner side is installed with a flame retardant plate of an enclosure structure through a U-shaped plate; the inverted T-shaped galvanized steel plate includes a plurality of plates arranged in an array along the length direction of the I-beam, and the transverse plates of each inverted T-shaped galvanized steel plate are fixedly connected to the lower wing plate of the I-beam and the outer ends are uniformly extended from the outer edge of the lower wing plate, and the vertical plates extend upward and are located in the same plane as the outer surface of the wall above the I-beam; the outer belly of the I-beam and the vertical plates of the inverted T-shaped galvanized steel plates are filled with fireproof and soundproof rock wool, and the outer side of the fireproof and soundproof rock wool is coated with an inner glass fiber mesh through slurry; the thermal insulation rock wool board is fixed to the outer side of the vertical plate of the inverted T-shaped galvanized steel plate through anchor bolts, and the bottom is fixed to the outer side of the vertical plate of the inverted T-shaped galvanized steel plate through the inverted T-shaped galvanized steel plates. The horizontal plate supports, and the outer side of the thermal insulation rock wool board is coated with an outer glass fiber mesh through slurry; the U-shaped plate includes a plurality of plates arranged in an array along the length direction of the I-beam, and each U-shaped plate is fixedly arranged at the bottom of the lower wing plate of the I-beam and the outer ends thereof extend out of the inner edge of the lower wing plate with the same length, and the outer ends of each U-shaped plate are commonly connected to a lower keel arranged in parallel with the I-beam, and an upper keel arranged opposite to the lower keel is installed at the bottom of the top wall above the I-beam, and the electrical pre-buried pipe of the top wall passes through the gap between the upper keel and the upper wing plate of the I-beam and is led out downward; the flame retardant plate includes a side flame retardant plate and a bottom flame retardant plate, and the side flame retardant plate is vertically installed between the lower keel and the upper keel, and the bottom flame retardant plate is horizontally installed at the bottom of the lower keel and the inner side thereof contacts the wall surface at the bottom of the I-beam, and the side flame retardant plate, the bottom flame retardant plate and the inner belly of the I-beam constitute an encapsulation structure, and the encapsulation structure is filled with fireproof and soundproof rock wool.

[0006] Optionally, the outer glass fiber mesh includes a first outer glass fiber mesh and a second outer glass fiber mesh arranged in a stacked manner, the first outer glass fiber mesh is applied to the outside of the thermal insulation rock wool board through slurry, and the second glass fiber mesh is applied to the outside of the first outer glass fiber mesh through slurry.

[0007] Optionally, the anchor bolt is connected between the first outer glass fiber mesh and the vertical plate of the inverted T-shaped galvanized steel plate, and the rear end of the anchor bolt is buried between the first outer glass fiber mesh and the second outer glass fiber mesh.

[0008] Optionally, the vertical plate of the inverted T-shaped galvanized steel plate is provided with a connecting hole, and the front end of the anchor bolt is connected to the connecting hole through an expandable sleeve.

[0009] Optionally, the bottom of the thermal insulation rock wool board is provided with a slot structure adapted to the transverse plate of each inverted T-shaped galvanized steel plate.

[0010] Optionally, the upper edge of the side flame retardant plate is connected to the bottom of the top wall, and the inner edge of the bottom flame retardant plate is connected to the wall, so that the side flame retardant plate and the bottom flame retardant plate form a false beam structure enclosed outside the I-beam.

[0011] Optionally, a gap for the electrical pre-buried pipe to pass through is provided between the lower keel and the inner edge of the waist plate of the I-beam, and the gap is ≥20 mm.

[0012] Optionally, doors and windows are arranged below the I-beam, the bottom flame retardant plate is connected to the inner surface of the doors and windows, and the I-beam and the doors and windows are tightly connected via a U-shaped plate to form a tightly connected whole to avoid the "thermal bridge" phenomenon.

[0013] In order to achieve the above-mentioned purpose, in a second aspect, the present invention provides a construction method for an external thermal insulation rock wool board and a fireproof and soundproof package for a prefabricated steel structure residence, wherein a plurality of inverted T-shaped galvanized steel plates are arranged in an array along the length direction on the outside of an I-beam, and the transverse plate of each inverted T-shaped galvanized steel plate is connected to the lower wing plate of the I-beam and the outer ends thereof extend out of the outer edge of the lower wing plate with the same length, and the vertical plate extends upward and is located in the same plane as the outer surface of the wall above the I-beam; fireproof and soundproof rock wool is filled between the outer belly of the I-beam and the vertical plate; an inner glass fiber mesh is laid on the outside of the fireproof and soundproof rock wool by slurry; the thermal insulation rock wool board is fixed to the outer side of the vertical plate of the inverted T-shaped galvanized steel plate by anchor bolts, and the bottom of the thermal insulation rock wool board is fixed by the inverted T-shaped The galvanized steel plate is supported by a horizontal plate; an outer glass fiber mesh is laid on the outside of the thermal insulation rock wool plate by slurry; a plurality of U-shaped plates are arranged in an array along the length direction on the inside of the I-beam, each of the U-shaped plates is fixedly arranged at the bottom of the lower wing plate of the I-beam and the outer ends thereof extend out of the inner edge of the lower wing plate with the same length; a lower keel arranged parallel to the I-beam is installed on the outer edge of each U-shaped plate, and an upper keel arranged opposite to the lower keel is installed on the top wall above the I-beam; a side flame retardant plate is vertically installed between the lower keel and the upper keel, and a bottom flame retardant plate is horizontally installed at the bottom of the lower keel to contact the wall below the I-beam, and the side flame retardant plate, the bottom flame retardant plate and the outer belly of the I-beam constitute an encapsulation structure; and fireproof and soundproof rock wool is filled in the encapsulation structure.

[0014] Optionally, a connecting hole is provided on the vertical plate of the inverted T-shaped galvanized steel plate, and an expandable sleeve is provided at the front end of the anchor bolt. The expandable sleeve in a contracted state is inserted into the connecting hole, and the expandable sleeve is driven by the anchor bolt to change from a contracted state to an expanded state and fixedly connected to the connecting hole.

[0015] The invention provides a construction structure and method for the external thermal insulation rock wool board and fireproof and soundproofing enclosure of a prefabricated steel structure residence. An inverted T-shaped galvanized steel plate is arranged on the outer side of the I-beam of the steel structure. The vertical plate of the inverted T-shaped galvanized steel plate is extended upward and arranged. The thermal insulation rock wool board is fixed to the outer side of the vertical plate of the inverted T-shaped galvanized steel plate by anchor bolts. The bottom is supported by the horizontal plate of each inverted T-shaped galvanized steel plate. At the same time, an inner glass fiber mesh cloth and an outer glass fiber mesh cloth are laid, thereby improving the firmness of the thermal insulation rock wool board and making the thermal insulation rock wool board firmly attached to the outer side of the I-beam. At the same time, a through hole is formed on the inner side of the I-beam of the steel structure. The flame retardant plate is installed through the U-shaped plate, so that the side flame retardant plate, the bottom flame retardant plate and the inner belly of the I-beam form an encapsulation structure, and the encapsulation structure is filled with fire-proof and sound-insulating rock wool, thereby forming an encapsulation structure that is convenient for the pre-buried pipelines of the roof top wall to pass through. With this construction structure and method, the interior and exterior decoration of the I-beam are integrated to form a solid overall structure, ensuring that no thermal bridge occurs at the window. The structure is beautiful, safe and reliable, and the hidden danger of cracking between the exterior wall fire-proof and sound-insulating rock wool insulation board and the steel beam bracket is solved. The construction process is simple and easy, and is suitable for use in prefabricated steel structure houses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0017] Figure 1 It is a schematic diagram of the construction structure of the provided prefabricated steel structure residential external insulation rock wool board and fireproof and soundproofing envelope.

[0018] Figure 2 This is a structural diagram of the installation of external insulation rock wool panels in the outdoor part.

[0019] Figure 3 This is a schematic diagram of the structure connecting the anchor bolt and the inverted T-shaped galvanized steel plate.

[0020] Figure 4 This is a schematic diagram of the structure of the flame retardant panel in the indoor part.

[0021] Figure 5 A flowchart of the construction method of the provided prefabricated steel structure residential external insulation rock wool board and fireproof and soundproof enclosure.

[0022] In the figure, 1 is an I-beam, 2 is an inverted T-shaped galvanized steel plate, 3 is an insulating rock wool plate, 4 is an anchor bolt, 5 is an inner glass fiber mesh, 6 is an outer glass fiber mesh, 7 is a U-shaped plate, 8 is an upper keel, 9 is a lower keel, 10 is a side flame retardant plate, 11 is a bottom flame retardant plate, 12 is a fireproof and soundproof rock wool, 13 is a wall, 14 is a top wall, 15 is a door and a window, 16 is an electrical embedded pipe, and 17 is an expandable sleeve. DETAILED DESCRIPTION

[0023] In the field of prefabricated steel structure residential buildings, during the outdoor insulation construction of the building, the fireproof and soundproof rock wool insulation board at the I-beam cannot be anchored with traditional anchor bolts. The insulation rock wool board at the I-beam can only be bonded to the outer side of the wing plate of the I-beam with adhesives. The bonding surface is small and the bonding is not strong, resulting in the structural strength of the fireproof and soundproof rock wool insulation board installed at the I-beam. It is easy to crack the insulation rock wool board and the I-beam. At the same time, for the indoor part of the prefabricated steel structure residential building, the steel beam is generally sprayed with fireproof paint, and then filled with fireproof and soundproof rock wool, and then plastering is carried out, so that the pre-buried pipeline of the roof top wall cannot pass through the I-beam into the wall and then lead to the electrical switch control box. There is no mature method for building interior decoration, especially for the intersection of the steel beam and the building wall panel and the top wall. The traditional decoration method cannot meet the requirements of water and electricity installation and beautiful decoration. This is a common problem of steel structure residential buildings, and there is currently no mature technology.

[0024] In order to solve the above problems, the present invention provides a construction structure and method for an assembled steel structure residential exterior thermal insulation rock wool board and fireproof and soundproof enclosure. The construction structure and method provided by the present invention will be specifically described below in conjunction with the accompanying drawings of the specification. It should be noted that the specific implementation is only a partial preferred example, not all examples.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, the construction structure of the external thermal insulation rock wool board and fireproof and soundproofing package of the assembled steel structure residential building provided by the present invention, the outer side of the I-beam 1 of the steel structure is installed with the thermal insulation rock wool board 3 through the inverted T-shaped galvanized steel plate 2, and the inner side is installed with the flame retardant board through the U-shaped plate 7. Among them, the setting of the inverted T-shaped galvanized steel plate solves the problem of filling and fixing the fireproof and soundproof rock wool on the belly of the outer side of the I-beam and the problem of anchoring the fireproof and soundproof rock wool insulation board of the outer wall to the I-beam; the U-shaped plate 7 is installed on the inner side of the I-beam, and the upper keel 8 and the lower keel 9 are arranged at intervals, which solves the problem of fixing the flame retardant board, and reserves enough space for the installation of electrical pipelines, solving the problem that the electrical pre-buried pipe cannot directly enter the lower wall from the roof top wall 14 through the steel beam.

[0026] The inverted T-shaped galvanized steel plate 2 includes multiple plates and is arranged in an array along the length direction of the I-beam 1. The horizontal plate of each inverted T-shaped galvanized steel plate 2 is fixedly connected to the lower wing plate of the I-beam 1 and the outer end thereof extends out of the outer edge of the lower wing plate with the same length. The vertical plate extends upward and is located in the same plane as the outer surface of the wall 13 above the I-beam 1. The outer belly of the I-beam 1 and the vertical plate of the inverted T-shaped galvanized steel plate 2 are filled with fireproof and soundproof rock wool 12, and the outer side of the fireproof and soundproof rock wool 12 is coated with an inner glass fiber mesh 5 through slurry; the thermal insulation rock wool board 3 is fixed to the outer side of the vertical plate of the inverted T-shaped galvanized steel plate 2 through anchor bolts 4, and the bottom is supported by the horizontal plate of each inverted T-shaped galvanized steel plate 2, and the outer side of the thermal insulation rock wool board 3 is coated with an outer glass fiber mesh 6 through slurry.

[0027] In some preferred embodiments, the specific operation steps are as follows: an inverted T-shaped piece is welded on the lower flange plate of the I-beam, and the thermal insulation rock wool board filled in the belly of the I-beam is fixed to the belly plate of the I-beam by the vertical plate of the inverted T-shaped piece; then the inner glass fiber mesh is hung and the whole is leveled with 1:3 cement mortar. After the strength of the cement mortar reaches the design requirements, a 120mm thick TR10 thermal insulation rock wool board is installed, and the first layer of plastering mortar is applied, and the first layer of alkali-resistant glass fiber mesh is pressed in. Then, the thermal insulation rock wool board is fixed to the vertical plate of the inverted T-shaped galvanized steel plate with anchor bolts, and the second layer of plastering mortar is applied, and the second layer of alkali-resistant glass fiber mesh is pressed in, and the subsequent process construction is continued. According to the installation requirements of the fireproof and soundproof rock wool insulation board for the exterior wall, the spacing between the inverted T-shaped galvanized steel plates shall not exceed 400㎜; after the inverted T-shaped galvanized steel plates are welded to the steel beams, they shall be painted with anti-rust paint and sprayed with fire-retardant paint together with the steel beams to ensure that the fire resistance limit meets the design requirements; the size of the inverted T-shaped galvanized steel plates is determined according to the thickness of the fireproof and soundproof rock wool insulation board, and can be set to an asymmetric T-shaped structure according to the specific size. The upper and lower keels on the inside of the I-beam must be treated with anti-corrosion and anti-rust treatment. The flame-retardant board can be made of flame-retardant gypsum board and covered with the keel to ensure that the fire resistance limit of the keel meets the design requirements.

[0028] The above-mentioned structure of the present invention welds an inverted T-shaped galvanized steel plate on the steel beam, and gives full play to the pulling and supporting operations of the inverted T-shaped galvanized steel plate on the exterior wall insulation rock wool board. This method is simple and fast, with low construction cost and high fixing strength of the insulation rock wool board. The insulation rock wool board and the belly of the steel beam are filled with fireproof and sound-insulating rock wool, which is directly connected to the steel beam through the inverted T-shaped galvanized steel plate. The overall effect is good, and cracking between the insulation rock wool board and the steel beam can be effectively prevented.

[0029] The U-shaped plates 7 include a plurality of plates arranged in an array along the length direction of the I-beam 1, each U-shaped plate 7 is fixedly arranged at the bottom of the lower wing plate of the I-beam 1 and the outer ends thereof extend out of the inner edge of the lower wing plate with the same length, the outer ends of each U-shaped plate 7 are commonly connected to a lower keel 9 arranged in parallel with the I-beam 1, an upper keel 8 arranged opposite to the lower keel 9 is installed at the bottom of the top wall above the I-beam 1, and the electrical pre-buried pipe of the top wall passes through the gap between the upper keel 8 and the upper wing plate of the I-beam 1 and is led downward; the flame retardant plate includes a side flame retardant plate 10 and a bottom flame retardant plate 11, the side flame retardant plate 10 is vertically installed between the lower keel 9 and the upper keel 8, the bottom flame retardant plate 11 is horizontally installed at the bottom of the lower keel 9 and the inner side thereof abuts against the wall at the bottom of the I-beam 1, the side flame retardant plate 10, the bottom flame retardant plate 11 and the inner side abdomen of the I-beam 1 constitute an encapsulation structure with a fireproof function, and the fireproof encapsulation structure is filled with fireproof and soundproof rock wool 12. like Figure 1 As shown, doors and windows 15 are arranged below the I-beam 1, the bottom flame retardant plate 11 is connected to the inner surface of the doors and windows 15, and the I-beam 1 and the doors and windows 15 are tightly connected via a U-shaped plate 7 to form a tightly connected whole to avoid the "thermal bridge" phenomenon.

[0030] The above-mentioned fire-proof encapsulation structure is formed by installing side flame-retardant plates and bottom flame-retardant plates on the U-shaped plate, the upper keel and the lower keel. This fire-proof encapsulation structure solves the contradiction between fire-proof construction and decoration of steel beams in steel-structured houses, and closely links the internal and external decoration methods of steel beams and window installation as a whole to avoid the "thermal bridge" phenomenon. The inner side of the steel beam is constructed by fixing the flame-retardant plate with the keel, which provides space for the electrical pre-buried pipe to pass from the concrete top wall of the floor through the steel beam into the distribution box on the lower wall. The cost is low, the construction and installation are more economical and efficient, and the interior decoration effect is more beautiful.

[0031] like Figure 1 , Figure 2 As shown, for the construction structure of the outer glass fiber mesh 6, preferably, the outer glass fiber mesh 6 includes a first outer glass fiber mesh and a second outer glass fiber mesh arranged in layers, the first outer glass fiber mesh is laid on the outside of the thermal insulation rock wool board 3 through slurry, and the second glass fiber mesh is laid on the outside of the first outer glass fiber mesh through slurry. The anchor bolt 4 is connected between the first outer glass fiber mesh and the vertical plate of the inverted T-shaped galvanized steel plate 2, and the rear end of the anchor bolt 4 is buried between the first outer glass fiber mesh and the second outer glass fiber mesh. It can not only strengthen the firmness of the anchor bolt connection, prevent the rear end of the anchor bolt from sinking into the thermal insulation rock wool board and not playing a good fixing role, but also avoid the rear end of the anchor bolt being exposed to the outside, thereby improving the appearance of the building, and also avoid the metal material of the anchor bolt being exposed to the outside and rusting.

[0032] like Figure 3As shown, in order to facilitate the outdoor construction of anchor bolts and inverted T-shaped galvanized steel plates, in some preferred embodiments, the vertical plate of the inverted T-shaped galvanized steel plate 2 is provided with a connection hole, and the front end of the anchor bolt 4 is connected to the connection hole through the expandable sleeve 17. Specifically, a circular hole with a diameter of 18 mm is pre-processed on the vertical plate of the inverted T-shaped galvanized steel plate, and the circular hole is used for the anchor bolt to fix the thermal insulation rock wool board. The anchor bolt adopts a bolt part or a screw part, and the expandable sleeve adopts a plastic sleeve, which is similar to the expansion screw structure used in construction. The principle is the same and will not be repeated. After the bolt with the plastic sleeve is inserted into the circular hole, the bolt is tightened so that the plastic expansion plug outside the bolt is expanded and fixed on the vertical plate of the inverted T-shaped part, which is easy to operate and reliable in connection.

[0033] In order to improve the flexible adjustability of the position of the thermal insulation rock wool board, in some preferred embodiments, the bottom of the thermal insulation rock wool board 3 is provided with a slot structure adapted to the horizontal plate of each inverted T-shaped galvanized steel plate 2. Specifically, the outer end of the horizontal plate of the inverted T-shaped galvanized steel plate supports the outer thermal insulation rock wool board, and the thermal insulation rock wool board can be adjusted in the position of the inverted T-shaped galvanized steel plate by slotting, ensuring that the thermal insulation rock wool board is not only fixed by the tension of the anchor bolt, but also supported by the inverted T-shaped galvanized steel plate.

[0034] like Figure 1 and Figure 4 As shown, for the indoor part of the I-beam, in some preferred embodiments, the upper edge of the side flame retardant plate 10 is connected to the bottom of the top wall, and the inner edge of the bottom flame retardant plate 11 is connected to the wall, so that the side flame retardant plate 10 and the bottom flame retardant plate 11 form a false beam structure enclosed outside the I-beam. The part of the indoor steel beam enclosed and protruding from the inside of the steel beam is made into a false beam to ensure the beauty of the interior decoration.

[0035] like Figure 4 As shown, in order to facilitate the insertion of the electrical pre-buried pipe, in some preferred embodiments, a gap for the electrical pre-buried pipe to pass through is provided between the lower keel 9 and the inner edge of the waist plate of the I-beam 1, and the gap is ≥20mm. The upper keel on the inner side of the steel beam is fixed to the concrete top wall 14 of the floor, and the lower keel is fixed to the U-shaped plate and protrudes 20mm from the inner side of the steel beam, providing space for the electrical pre-buried pipe to pass through the concrete top wall 14 of the floor through the steel beam and enter the distribution box on the lower wall.

[0036] like Figure 5 As shown, the construction method of the external thermal insulation rock wool board and fireproof and soundproofing package of the assembled steel structure residential building provided by the present invention comprises the following steps:

[0037] S01: Arrange multiple inverted T-shaped galvanized steel plates 2 in an array along the length direction on the outside of the I-beam 1, wherein the horizontal plate of each inverted T-shaped galvanized steel plate 2 is connected to the lower wing plate of the I-beam 1 and the outer ends thereof extend out of the outer edge of the lower wing plate with the same length, and the vertical plate extends upward and is located in the same plane as the outer surface of the wall 13 above the I-beam 1;

[0038] S02: Fill the fireproof and soundproof rock wool 12 between the outer web of the I-beam 1 and the vertical plate;

[0039] S03: Laying inner glass fiber mesh 5 on the outside of the fireproof and soundproof rock wool 12 through slurry;

[0040] S04: Fix the thermal insulation rock wool board 3 to the outer side of the vertical board of the inverted T-shaped galvanized steel plate 2 through the anchor bolts 4, and the bottom of the thermal insulation rock wool board 3 is supported by the horizontal boards of each inverted T-shaped galvanized steel plate 2;

[0041] S05: Laying an outer glass fiber mesh 6 on the outer side of the thermal insulation rock wool board 3 through slurry;

[0042] S06: Arrange a plurality of U-shaped plates 7 in an array along the length direction on the inner side of the I-beam 1, wherein each U-shaped plate 7 is fixedly disposed at the bottom of the lower wing plate of the I-beam 1 and the outer ends thereof extend out of the inner edge of the lower wing plate with the same length;

[0043] S07: A lower keel 9 arranged parallel to the I-beam 1 is installed on the outer edge of each U-shaped plate 7, and an upper keel 8 arranged opposite to the lower keel 9 is installed on the top wall above the I-beam 1. The electrical pre-buried pipe on the top wall passes through the gap between the upper keel 8 and the upper wing plate of the I-beam 1 and is led out downward;

[0044] S08: A side flame retardant plate 10 is vertically installed between the lower keel 9 and the upper keel 8, and a bottom flame retardant plate 11 is horizontally installed at the bottom of the lower keel 9 to abut against the wall 13 below the I-beam 1. The side flame retardant plate 10, the bottom flame retardant plate 11 and the outer belly of the I-beam 1 form an encapsulation structure;

[0045] S09: Fill the encapsulation structure with fireproof and soundproof rock wool 12.

[0046] like Figure 3 As shown, in some preferred embodiments, S04 includes: setting a connecting hole on the vertical plate of the inverted T-shaped galvanized steel plate 2, setting an expandable sleeve 17 at the front end of the anchor 4, inserting the expandable sleeve in a contracted state into the connecting hole, and driving the expandable sleeve to change from a contracted state to an expanded state by rotating the anchor 4 to be fixedly connected to the connecting hole.

[0047] The invention provides a construction structure and method for the external thermal insulation rock wool board and fireproof and soundproofing enclosure of a prefabricated steel structure residence. On the outside of the I-beam of the steel structure, the vertical plate of the inverted T-shaped galvanized steel plate is extended upward and arranged, and the thermal insulation rock wool board is fixed to the outside of the vertical plate of the inverted T-shaped galvanized steel plate by anchor bolts, and the bottom is supported by the horizontal plate of each inverted T-shaped galvanized steel plate, and the inner glass fiber mesh and the outer glass fiber mesh are laid at the same time, so as to improve the firmness of the thermal insulation rock wool board. At the same time, on the inside of the I-beam of the steel structure, the vertical plate of the inverted T-shaped galvanized steel plate is extended upward and arranged, and the thermal insulation rock wool board is fixed to the outside of the vertical plate of the inverted T-shaped galvanized steel plate by anchor bolts, and the bottom is supported by the horizontal plate of each inverted T-shaped galvanized steel plate, and the inner glass fiber mesh and the outer glass fiber mesh are laid at the same time, so as to improve the firmness of the thermal insulation rock wool board. The U-shaped plate is installed with a flame-retardant plate, so that the side flame-retardant plate, the bottom flame-retardant plate and the inner belly of the I-beam form an encapsulation structure, and the encapsulation structure is filled with fire-proof and sound-insulating rock wool, thereby forming an encapsulation structure that is convenient for the pre-buried pipelines of the roof top wall to pass through. The internal and external decoration of the I-beam is integrated to form a solid overall structure, ensuring that no thermal bridge occurs at the window, solving the hidden danger of cracking between the fire-proof and sound-insulating rock wool insulation board of the exterior wall and the steel beam bracket. The structure is beautiful and suitable for use in prefabricated steel structure houses.

[0048] The above are only preferred embodiments of the present invention and are not limited to the above examples. Improvements and modifications made by ordinary technicians in this field within the essential scope of the present invention also belong to the protection scope of the present invention.

Claims

1. A construction structure of residential exterior thermal insulation rock wool board and fireproof and soundproof encapsulation, characterized by: The outer side of the I-beam (1) of the steel structure is provided with a thermal insulation rock wool board (3) via an inverted T-shaped galvanized steel plate (2), and the inner side is provided with a flame retardant board of an encapsulation structure via a U-shaped plate (7); The inverted T-shaped galvanized steel plates (2) include a plurality of plates arranged in an array along the length direction of the I-beam (1), the transverse plates of each inverted T-shaped galvanized steel plate (2) being fixedly connected to the lower wing plate of the I-beam (1) and the outer ends thereof extending out of the outer edge of the lower wing plate with the same length, and the vertical plates extending upward and being located in the same plane as the outer surface of the wall (13) above the I-beam (1); The space between the outer belly of the I-beam (1) and the vertical plate of the inverted T-shaped galvanized steel plate (2) is filled with fireproof and soundproof rock wool (12), and the outer side of the fireproof and soundproof rock wool (12) is coated with an inner glass fiber mesh (5) through slurry; The thermal insulation rock wool board (3) is fixed to the outer side of the vertical board of the inverted T-shaped galvanized steel plate (2) by means of anchor bolts (4), and the bottom is supported by the horizontal board of each inverted T-shaped galvanized steel plate (2). The outer side of the thermal insulation rock wool board (3) is coated with an outer glass fiber mesh cloth (6) by means of slurry; The U-shaped plates (7) include a plurality of plates arranged in an array along the length direction of the I-beam (1), each U-shaped plate (7) is fixedly arranged at the bottom of the lower wing plate of the I-beam (1) and the outer ends thereof extend out of the inner edge of the lower wing plate with the same length, the outer ends of each U-shaped plate (7) are commonly connected to a lower keel (9) arranged parallel to the I-beam (1), an upper keel (8) arranged opposite to the lower keel (9) is installed at the bottom of the top wall (14) above the I-beam (1), and the electrical embedded pipe (16) of the top wall (14) passes through the gap between the upper keel (8) and the upper wing plate of the I-beam (1) and is led out downward; The flame retardant plate comprises a side flame retardant plate (10) and a bottom flame retardant plate (11); the side flame retardant plate (10) is installed vertically between the lower keel (9) and the upper keel (8); the bottom flame retardant plate (11) is installed horizontally at the bottom of the lower keel (9) and its inner side abuts against the wall surface at the bottom of the I-beam (1); the side flame retardant plate (10), the bottom flame retardant plate (11) and the inner belly of the I-beam (1) form an encapsulation structure; the encapsulation structure is filled with fireproof and soundproof rock wool (12).

2. The construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 1 is characterized by: The outer glass fiber mesh (6) comprises a first outer glass fiber mesh and a second outer glass fiber mesh which are stacked, the first outer glass fiber mesh being applied to the outside of the thermal insulation rock wool board (3) through slurry, and the second outer glass fiber mesh being applied to the outside of the first outer glass fiber mesh through slurry.

3. The construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 2 is characterized by: The anchor bolt (4) is connected between the first outer glass fiber mesh and the vertical plate of the inverted T-shaped galvanized steel plate (2), and the rear end of the anchor bolt (4) is buried between the first outer glass fiber mesh and the second outer glass fiber mesh.

4. A construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproof encapsulation according to claim 1 or 3, characterized in that: The vertical plate of the inverted T-shaped galvanized steel plate (2) is provided with a connection hole, and the front end of the anchor bolt (4) is connected to the connection hole through an expandable sleeve (17).

5. The construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 1 is characterized by: The bottom of the thermal insulation rock wool board (3) is provided with a slotted hole structure adapted to the horizontal plate of each inverted T-shaped galvanized steel plate (2).

6. The construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 1 is characterized by: The upper edge of the side flame retardant plate (10) is connected to the bottom of the top wall (14), and the inner edge of the bottom flame retardant plate (11) is connected to the wall, so that the side flame retardant plate (10) and the bottom flame retardant plate (11) form a false beam structure enclosed outside the I-shaped cylinder beam.

7. A construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 1 or 6, characterized in that: A gap is provided between the lower keel (9) and the inner edge of the waist plate of the I-beam (1) for the electrical pre-buried pipe (16) to pass through, and the gap is ≥ 20 mm.

8. The construction structure of the residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 1 is characterized by: At a position where doors and windows (15) are arranged below the I-beam (1), the bottom flame retardant plate (11) is connected to the inner surface of the doors and windows (15), and the I-beam (1) and the doors and windows (15) are tightly connected via a U-shaped plate (7) to form a tightly connected whole, thereby avoiding the occurrence of a "thermal bridge" phenomenon.

9. A construction method for a construction structure of a residential exterior thermal insulation rock wool board and fireproof and soundproof encapsulation, characterized in that: A plurality of inverted T-shaped galvanized steel plates (2) are arranged in an array along the length direction on the outside of the I-beam (1), wherein the horizontal plate of each inverted T-shaped galvanized steel plate (2) is connected to the lower wing plate of the I-beam (1) and the outer ends thereof extend out of the outer edge of the lower wing plate with the same length, and the vertical plates extend upward and are located in the same plane as the outer surface of the wall (13) above the I-beam (1); Filling fireproof and soundproof rock wool (12) between the outer belly of the I-beam (1) and the vertical plate; Laying an inner glass fiber mesh cloth (5) on the outside of the fireproof and soundproof rock wool (12) by means of slurry; The thermal insulation rock wool board (3) is fixed to the outer side of the vertical board of the inverted T-shaped galvanized steel board (2) by means of anchor bolts (4), and the bottom of the thermal insulation rock wool board (3) is supported by the horizontal board of each inverted T-shaped galvanized steel board (2); Laying an outer glass fiber mesh cloth (6) on the outer side of the thermal insulation rock wool board (3) using slurry; A plurality of U-shaped plates (7) are arranged in an array along the length direction on the inner side of the I-beam (1), each of the U-shaped plates (7) being fixedly arranged at the bottom of the lower wing plate of the I-beam (1) and having outer ends extending out of the inner edge of the lower wing plate with the same length; A lower keel (9) arranged parallel to the I-beam (1) is installed on the outer edge of each U-shaped plate (7), an upper keel (8) arranged opposite to the lower keel (9) is installed on the top wall (14) above the I-beam (1), and the electrical pre-buried pipe (16) of the top wall (14) passes through the gap between the upper keel (8) and the upper wing plate of the I-beam (1) and is led out downward; A side flame retardant plate (10) is vertically installed between the lower keel (9) and the upper keel (8), and a bottom flame retardant plate (11) is horizontally installed at the bottom of the lower keel (9) to contact the wall (13) below the I-beam (1), wherein the side flame retardant plate (10), the bottom flame retardant plate (11) and the outer belly of the I-beam (1) form an encapsulation structure; Fireproof and sound-insulating rock wool (12) is filled in the encapsulation structure.

10. The construction method of the construction structure of the residential exterior thermal insulation rock wool board and fireproof and soundproofing package according to claim 9, characterized in that: A connection hole is provided on the vertical plate of the inverted T-shaped galvanized steel plate (2), and an expandable sleeve (17) is provided at the front end of the anchor bolt (4). The expandable sleeve in a contracted state is inserted into the connection hole, and the expandable sleeve is driven by the anchor bolt (4) to change from a contracted state to an expanded state and is fixedly connected to the connection hole.

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