CN217652193U - Fire prevention glass connection structure of subway station access & exit steel construction canopy - Google Patents

Abstract

The utility model provides a subway station access & exit steel construction canopy's fire prevention glass connection structure to effectively guarantee the fastness and the fire prevention seal of fire prevention glass installation, and simple structure, construction convenience. Steel construction canopy beam column skeleton includes the canopy steel column that transverse interval set up, the welding of the lateral wall of canopy steel column sets up rectangle galvanized steel pipe, sets up the U type galvanized steel sheet of welded fastening on the canopy steel column outside rectangle galvanized steel pipe both sides, constitutes installation intermediate layer fire prevention glass's draw-in groove, and embedded PLASTIC LAMINATED in the U type galvanized steel sheet inner chamber adopts fire prevention inflation sealing strip caulking between intermediate layer fire prevention glass and fire prevention inter-plate, forms the complete hot wall that prevents.

Description

Fire prevention glass connection structure of subway station access & exit steel construction canopy

Technical Field

The utility model relates to a subway station, in particular to subway station access & exit steel construction canopy's fire prevention glass connection structure.

Background

The subway station needs to be provided with enough personnel entrances and exits, and the subway entrances and exits arranged on old streets are limited by the space of ground, so that the subway station has to be arranged close to the existing buildings. According to the relevant provisions of building fire protection regulations, when the distance between an entrance and an existing building is smaller than the corresponding fire protection distance, the glass of the entrance and the exit of the subway needs to be fireproof glass so as to meet the fire protection requirement.

The special fireproof glass consists of a plurality of interlayers, the thickness of the special fireproof glass is much thicker than that of common toughened glass, the common toughened glass is fixed on a steel column by adopting a connection grab and weather-resistant glue, and the fixing mode is not suitable for the fireproof glass with very thick thickness and cannot effectively ensure the firmness of the installation of the fireproof glass.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a subway station access & exit steel construction canopy's fire prevention glass joint construction is provided to the fastness and the fire prevention seal of effective guarantee fire prevention glass installation, and simple structure, construction convenience.

The utility model provides a technical scheme as follows that above-mentioned technical problem took:

the utility model discloses a subway station access & exit steel construction canopy's fire prevention glass joint construction, steel construction canopy beam column skeleton include the canopy steel column that transverse separation set up, characterized by: the fireproof awning comprises an awning steel column, a U-shaped galvanized steel plate, fireproof plates, fireproof expansion sealing strips and fireproof plates, wherein the rectangular galvanized steel plate is welded and arranged on the transverse side wall of the awning steel column, the U-shaped galvanized steel plate welded and fixed on the awning steel column is arranged outside the two sides of the rectangular galvanized steel plate to form a clamping groove for installing interlayer fireproof glass, the fireproof plates are embedded in the inner cavity of the U-shaped galvanized steel plate, and the fireproof expansion sealing strips are used for caulking between the interlayer fireproof glass and the fireproof plates to form a complete fireproof wall.

The fireproof glass mounting structure has the beneficial effects that the mode that the rectangular galvanized steel pipe and the U-shaped galvanized steel plate form the groove bayonet is adopted, so that the mounting firmness and fireproof tightness of the fireproof glass are effectively guaranteed; simple structure and convenient construction.

Drawings

The specification includes the following three drawings:

FIG. 1 is a schematic view of a fire-proof glass connection structure of a steel structure canopy at an entrance and an exit of a subway station;

FIG. 2 is a cross-sectional structural view of a fire-proof glass connection structure of a steel structural canopy at an entrance and an exit of a subway station according to the present invention;

fig. 3 is a schematic elevation view of the fireproof glass installed on the steel column at the entrance and exit in the fireproof glass connection structure of the steel structure canopy at the entrance and exit of the subway station according to the present invention;

the figure shows the names of the main parts and the corresponding labels: 10 of a rainshed steel column, 11 of a rectangular galvanized steel pipe, 12 of a fireproof plate, 13 of a U-shaped galvanized steel plate, 14 of a fireproof expansion sealing strip, 20 of sandwich fireproof glass, 30 of an entrance/exit reinforced concrete side wall, 31 of an anchor bolt, 32 of a nut, 33 of a non-shrinkage fine stone concrete layer and 34 of a concrete plugging layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 3, the utility model discloses a fire prevention glass connection structure of subway station access & exit steel construction canopy, steel construction canopy beam column skeleton include canopy steel column 10 that transverse separation set up, the welding of the horizontal lateral wall of canopy steel column 10 sets up rectangle galvanized steel pipe 11, sets up the U type galvanized steel sheet 13 of welded fastening on the canopy steel column 10 outside rectangle galvanized steel pipe 11 both sides, constitutes the draw-in groove of installation intermediate layer fire prevention glass 20, and embedded PLASTIC LAMINATED 12 in the U type galvanized steel sheet 13 inner chamber adopts the 14 fillets of fire prevention expansion sealing strip between intermediate layer fire prevention glass 20 and PLASTIC LAMINATED 12, forms complete fire prevention wall, can effectively ensure the fastness and the fire prevention seal of fire prevention glass installation, and simple structure, convenient construction.

Referring to fig. 2, the lower ends of the rainshelter steel columns 10 are fixedly mounted on the reinforced concrete side walls 30 of the doorway through anchor bolts 31.

Referring to fig. 1 to 3, the construction steps of the fire-proof glass connection structure of the steel structure canopy at the entrance and exit of a subway station are as follows:

1. constructing reinforced concrete side walls 30 at the entrances and exits of the subway station, and embedding anchor bolts 31 in the reinforced concrete side walls 30 at the entrances and exits;

2. leveling the entrance and exit reinforced concrete side walls 30 by adopting a non-shrinkage fine stone concrete layer 33, and installing and fixing the rainshed steel column 10 through a nut 32; after the rainshed steel column 10 is installed, pouring low-grade concrete to form a concrete blocking layer 34, so that the bottom of the rainshed steel column 10 and connecting members are prevented from rusting;

3. welding a rectangular galvanized steel pipe 11 on a rainshed steel column 10, installing a fireproof plate 12 on the side surface of the rectangular galvanized steel pipe 11, wrapping the outer side of the fireproof plate 12 by a U-shaped galvanized steel plate 13, and welding the U-shaped galvanized steel plate 13 on the rainshed steel column 10;

4. the rectangular galvanized steel pipe 11 and the U-shaped galvanized steel plate 13 form a groove bayonet, the interlayer fireproof glass 20 is installed, and a fireproof expansion sealing strip 14 is used for caulking between the interlayer fireproof glass 20 and the fireproof plate 12 to form a complete fireproof glass wall.

The above is only used for illustrating the utility model relates to a some principles of fire prevention glass connection structure of subway station access & exit steel construction canopy, not will the utility model discloses the limitation show with concrete structure and application scope in, so all corresponding revisions and equivalents that probably are utilized all belong to the utility model discloses the patent range who applies for.

Claims (2)

1. The utility model provides a subway station access & exit steel construction canopy's fire prevention glass joint construction, steel construction canopy beam column skeleton include canopy steel column (10) that transverse separation set up, characterized by: the welding of the transverse side wall of canopy steel column (10) sets up rectangle galvanized steel pipe (11), sets up U type galvanized steel sheet (13) welded fastening on canopy steel column (10) outside rectangle galvanized steel pipe (11) both sides, constitutes the draw-in groove of installation intermediate layer fire prevention glass (20), and embedded PLASTIC LAMINATED (12) in U type galvanized steel sheet (13) inner chamber adopt fire prevention inflation sealing strip (14) caulking between intermediate layer fire prevention glass (20) and PLASTIC LAMINATED (12), forms complete hot wall.

2. The fire-proof glass connection structure of the steel structure canopy at the entrance and exit of the subway station as claimed in claim 1, wherein: the lower ends of the canopy steel columns (10) are fixedly installed on the access reinforced concrete side walls (30) through embedded anchor bolts (31).

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