Building curtain wall interlayer fireproof blocking structure node

Abstract

The utility model relates to the technical field of external envelope fireproof structures, in particular to a building curtain wall interlayer fireproof plugging construction node, which solves the technical problem that a fireproof plugging structure is lacked between a solid wall steel beam bearing structure and a curtain wall, and comprises an angle steel bracket fixed between the side surface of a concrete layer and the curtain wall, a fireproof gypsum board is fixed to the outer side wall of the angle steel support, the fireproof gypsum board is wrapped with an upper galvanized iron sheet, an opening of the upper galvanized iron sheet is sealed through fireproof sealant, and the fireproof gypsum board is filled with mineral wool; the steel beam is coated with a fireproof coating layer; the channel steel is welded to the lower surface of the steel beam, the lower galvanized iron sheet is fixed to the channel steel and a lower transverse frame of the curtain wall, an opening of the lower galvanized iron sheet is sealed through fireproof sealant, and mineral wool is arranged above the lower galvanized iron sheet. According to the utility model, fire and smoke are effectively prevented from moving upwards from gaps, the life and property safety of adjacent layers on fire is ensured, and the building safety in a fire disaster is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of external fire protection structure, especially relates to a building curtain wall interlayer fireproof plugging structure node. BACKGROUND

[0002] The external fire protection structure of high-rise and super high-rise buildings generally adopts a curtain wall system, the solid wall comprises a steel beam and a concrete layer connected to the top of the steel beam, and whether the gap between the building curtain wall and the solid wall can be effectively prevented from fire and smoke from the gap is directly related to the overall building fire safety.

[0003] According to article 6.2.5 of GB50016-2014 "Building Design Fire Code" (2018 edition), a solid wall with a height not less than 1.2m should be arranged between the upper and lower openings of the building external wall, and when an automatic water spray fire extinguishing system is arranged indoors, the height of the solid wall between the upper and lower openings should not be less than 0.8m.

[0004] According to article 6.2.5 of the national standard atlas "18J811-1 Building Design Fire Code Atlas", the upper and lower gaps between the building curtain wall and the solid wall should be plugged, but the specific method is not proposed.

[0005] T / CECS806-2021 "Building Curtain Wall Fire Protection Technical Specification" provides a node schematic diagram of a non-combustible solid wall with a concrete beam load of less than 800mm, but only provides a schematic diagram of the curtain wall fireproof plugging structure. When the height from the concrete top surface to the steel beam bottom surface is less than 1.2m, and the automatic water spray fire extinguishing system is arranged indoors, the height is less than 0.8m, the concrete height requirement is greater than 250mm, and the specific method of the fireproof plugging structure between the steel beam load and the curtain wall is not provided. UTILITY MODEL CONTENTS

[0006] In order to overcome the technical defects of the prior art that the solid wall height between the upper and lower openings in the building curtain wall does not meet 1.2m and 0.8m, and the fireproof plugging structure is lacking between the solid wall steel beam load structure and the curtain wall, the utility model provides a building curtain wall interlayer fireproof plugging structure node.

[0007] The utility model provides a kind of building curtain wall interlayer fireproof plugging construction node, between the side surface of concrete layer and curtain wall is fixed angle steel support by expansion bolt, the top of angle steel support extends to the lower side of upper horizontal frame of curtain wall, at least two layers of rustproof paint are coated on angle steel support, fireproof gypsum board is fixed on the outer side wall of angle steel support, upper galvanized iron sheet is covered outside fireproof gypsum board, and opening of upper galvanized iron sheet is sealed using fireproof sealant, mineral wool with thickness greater than 200mm is filled in fireproof gypsum board;Steel beam is coated with fire retardant coating layer;Channel steel is welded on the lower surface of steel beam, lower galvanized iron sheet is fixed to the lower horizontal frame of curtain wall by screw, opening of lower galvanized iron sheet is sealed using fireproof sealant, mineral wool with thickness greater than 200mm is arranged above lower galvanized iron sheet, and heat insulation cotton layer is arranged on the inner side of curtain wall between fireproof rock wool at lower galvanized iron sheet and the bottom of upper galvanized iron sheet.

[0008] Preferably, the mineral wool is rock wool or aluminum silicate wool.

[0009] Preferably, the thickness of the upper galvanized iron sheet and the lower galvanized iron sheet is 1.5mm, the thickness of the fireproof gypsum board is 12mm, and the thickness of the fire retardant coating layer is at least 3mm.

[0010] The technical scheme provided by the utility model has the following technical effects compared with the prior art: the utility model provides a detailed method of fireproof plugging construction of building curtain wall interlayer opening between upper and lower layers of solid wall height not satisfying 1.2m and 0.8m, which effectively prevents fire and smoke from rising through the gap, ensures the safety of life and property of adjacent layers in case of fire, and ensures the safety of building in case of fire. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings incorporated into the specification and forming a part thereof show, by way of illustration, embodiments in which the principles of the utility model are applied, and together with the description, serve to explain the principles of the utility model.

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 It is a structural schematic view of the building curtain wall interlayer fireproof plugging construction node described in an embodiment of the utility model.

[0014] In the figure: 1, concrete layer; 2, curtain wall; 3, expansion bolt; 4, angle steel support; 5, upper horizontal frame; 6, fireproof gypsum board; 7, upper galvanized iron sheet; 8, fireproof sealant; 9, mineral wool; 10, channel steel; 11, lower galvanized iron sheet; 12, thermal insulation cotton layer; 13, steel beam; 14, lower horizontal frame. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the following will further describe the scheme of the present application. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the description, it should be noted that the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. It should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0017] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein; Obviously, the examples in the specification are only a part of the embodiments of the present application, not all the embodiments.

[0018] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0019] In one embodiment, as Figure 1As shown, a building curtain wall interlayer fireproof plugging structure node is disclosed, the upper plugging place is: the side of the concrete layer 1 and the curtain wall 2 are fixed by the expansion bolt 3 angle steel support 4, the top of the angle steel support 4 extends to the lower side of the upper horizontal frame 5 of the curtain wall 2, the angle steel support 4 is coated with at least two layers of anti-rust paint, the outer side wall of the angle steel support 4 is fixed with the fireproof gypsum board 6, the outside of the fireproof gypsum board 6 is covered with the upper galvanized iron sheet 7, and the opening of the upper galvanized iron sheet 7 is sealed with the fireproof sealant 8, and the fireproof gypsum board 6 is filled with the mineral wool 9 with a thickness greater than 200mm; the steel beam 13 fireproof place: the steel beam 13 is coated with a fireproof paint layer; the lower plugging place is: the lower surface of the steel beam 13 is welded with the channel steel 10, the lower galvanized iron sheet 11 is fixed to the channel steel 10 and the lower horizontal frame 14 of the curtain wall 2 through the screw, the opening of the lower galvanized iron sheet 11 is sealed with the fireproof sealant 8, the upper side of the lower galvanized iron sheet 11 is provided with the mineral wool 9 with a thickness greater than 200mm, and the inside of the curtain wall 2 between the fireproof rock wool at the lower galvanized iron sheet 11 and the bottom of the upper galvanized iron sheet 7 is provided with the thermal insulation cotton layer 12.

[0020] On the basis of the above-mentioned embodiments, in a preferred embodiment, the mineral wool 9 is rock wool or aluminum silicate wool.

[0021] On the basis of the above-mentioned embodiments, in a preferred embodiment, the thickness of the upper galvanized iron sheet 7 and the lower galvanized iron sheet 11 is 1.5mm, the thickness of the fireproof gypsum board 6 is 12mm, and the thickness of the fireproof paint layer is at least 3mm.

[0022] The above only is the specific implementation manner of the present application, so that the person skilled in the art can understand or realize the present application. Although the foregoing embodiments are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should be covered in the protection scope of the claims.

Claims

1. A fireproof sealing structural node between layers of a building curtain wall, characterized in that, Angle steel brackets (4) are fixed between the side of the concrete layer (1) and the curtain wall (2) by expansion bolts (3). The top of the angle steel brackets (4) extends to the lower side of the upper horizontal frame (5) of the curtain wall (2). The angle steel brackets (4) are coated with at least two layers of anti-rust paint. Fireproof gypsum board (6) is fixed on the outer wall of the angle steel brackets (4). The fireproof gypsum board (6) is covered with an upper galvanized iron sheet (7), and the opening of the upper galvanized iron sheet (7) is sealed with fireproof sealant (8). The fireproof gypsum board (6) is filled with mineral wool with a thickness greater than 200mm. 9); fireproof coating is applied to the steel beam (13); channel steel (10) is welded to the lower surface of the steel beam (13), and the lower galvanized iron sheet (11) is fixed to the channel steel (10) and the lower horizontal frame (14) of the curtain wall (2) by screws. The opening of the lower galvanized iron sheet (11) is sealed with fireproof sealant (8). A mineral wool (9) with a thickness greater than 200mm is installed above the lower galvanized iron sheet (11). A thermal insulation layer (12) is installed on the inner side of the curtain wall (2) between the fireproof rock wool at the lower galvanized iron sheet (11) and the bottom of the upper galvanized iron sheet (7).

2. The fireproof sealing structural node between layers of a building curtain wall according to claim 1, characterized in that, Mineral wool (9) is rock wool or aluminum silicate wool.

3. A fireproof sealing structural node for interlayer curtain walls according to claim 1, characterized in that, The thickness of the upper galvanized iron sheet (7) and the lower galvanized iron sheet (11) is 1.5 mm, the thickness of the fireproof gypsum board (6) is 12 mm, and the thickness of the fireproof coating layer is at least 3 mm.

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