Urban updated glass curtain wall structure of existing building and construction method of urban updated glass curtain wall structure

Abstract

The invention discloses an urban updated glass curtain wall structure of an existing building and a construction method thereof.The urban updated glass curtain wall structure of the existing building comprises an attached plate assembly and a fireproof plate, the attached plate assembly comprises a plurality of base plates, a bearing beam and the fireproof plate, the base plates are installed on the outer side of an existing structural floor, the base plates are arranged in the circumferential direction of the existing structural floor, and the bearing beam is installed on the base plates; a plurality of supports are arranged on the bearing beam, the fireproof plate comprises a formwork, a steel grating and concrete, the formwork is laid on the supports, the grating plate is installed on the formwork and abuts against the outer side of the existing structural floor slab, the concrete wraps the grating plate, and the top of the fireproof plate is flush with the top of the existing structural floor slab; the curtain wall body and the attached plate assembly are installed on the multi-layer existing structure floor slab, and the side portion of the fireproof plate abuts against the inner side of the curtain wall body. The problem that a large gap exists between a curtain wall and a floor structure and cannot bear load when the curtain wall is installed on the outer vertical face of an existing building is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an urban renewal glass curtain wall structure of an existing building and a construction method thereof. Background Art

[0002] Many buildings in cities are gradually entering the "middle age" or "old age", and the facades of existing buildings can no longer meet people's daily use needs. According to the needs of urban renewal of buildings, large-area curtain walls have greatly improved the lighting and quality of office buildings, but this also brings a problem: since there is usually a gap of more than 200mm between the curtain wall and the floor structure, although the curtain wall can complete the fireproof closure between each floor, it usually has a poor appearance and cannot bear weight. If the extension of the fine decoration floor is directly carried out on it, there will be quality and safety hazards, thus affecting the quality requirements of the office building. Therefore, the construction of structural components between the urban renewal glass curtain wall and the existing building is a practical method.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] In order to overcome the defects of the prior art, a glass curtain wall structure for urban renewal of an existing building and a construction method thereof are provided to solve the problem that when curtain walls are installed on the facades of existing buildings, there is a large gap between the curtain walls and the floor structure, which makes it unable to bear weight.

[0005] In order to achieve the above-mentioned purpose, a glass curtain wall structure for urban renewal of an existing building is provided, comprising:

[0006] The attached plate assembly includes a plurality of base plates, a load-bearing beam and a fireproof plate, wherein the base plates are installed on the outer side of the existing structural floor plate, the plurality of base plates are arranged along the circumferential direction of the existing structural floor plate, the load-bearing beam is installed on the plurality of base plates, a plurality of brackets are arranged on the load-bearing beam, the fireproof plate includes a template, a steel grille and concrete, the template is laid on the plurality of brackets, the grille plate is installed on the template and abuts against the outer side of the existing structural floor plate, the concrete is coated on the grille plate, and the top of the fireproof plate is flush with the top of the existing structural floor plate;

[0007] The curtain wall body is an attached plate assembly installed on the existing structural floor of multiple layers, and the side of the fireproof plate is against the inner side of the curtain wall body.

[0008] Furthermore, the base plate is installed on the existing structural floor through expansion bolts.

[0009] Furthermore, the load-bearing beam is a channel steel or a square tube.

[0010] Furthermore, the channel steel or the square tube is filled with sound insulation cotton.

[0011] Furthermore, the width of the load-bearing beam is adapted to the width of the fireproof board.

[0012] Furthermore, the support comprises:

[0013] A column, vertically arranged on the load-bearing beam, the upper end of the column being supported on the template;

[0014] The stiffening rib plate is obliquely supported on the upper part of the column and the formwork.

[0015] The present invention provides a construction method for an urban renewal glass curtain wall structure of an existing building, comprising the following steps:

[0016] Installing a plurality of base plates on the outer side of the existing structural floor slab, so that the plurality of base plates are arranged along the circumferential direction of the existing structural floor slab;

[0017] Installing load beams on the plurality of substrates;

[0018] placing a plurality of brackets on the load-bearing beam;

[0019] Laying templates on the multiple supports;

[0020] Installing a grid plate on the template;

[0021] Pouring concrete on the formwork, the concrete covering the grid plate and solidifying to form a fireproof board, so that the top of the fireproof board is flush with the top of the existing structural floor;

[0022] The curtain wall body is installed on the attached plate assembly on the multi-layer existing structural floor slab, so that the side of the fireproof plate is against the inner side of the curtain wall body.

[0023] The beneficial effect of the present invention is that the glass curtain wall structure for urban renewal of existing buildings of the present invention uses the outer side of the existing structural floor slab to set up the fireproof board through the base plate and the load-bearing beam, on the one hand, the curtain wall body is subsequently installed, and on the other hand, the fireproof sealing of the upper and lower layers is realized, thereby improving the aesthetics of the curtain wall installation. In addition, the glass curtain wall structure for urban renewal of existing buildings of the present invention has a short construction period, convenient construction and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1It is a structural schematic diagram of the urban renewal glass curtain wall structure of an existing building according to an embodiment of the present invention.

[0026] Figure 2 This is a top view of the urban renewal glass curtain wall structure of an existing building according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Reference Figure 1 and Figure 2 As shown, the present invention provides a glass curtain wall structure for urban renewal of an existing building, comprising: an attached plate assembly 1 and a curtain wall body 2.

[0030] The additional plate assembly 1 includes a plurality of base plates 11 , a load-bearing beam 12 and a fireproof plate 13 .

[0031] Specifically, there are multiple substrates. The substrate 11 is installed on the outside of the existing structural floor 3. Multiple substrates are arranged on the outside of the existing structural floor of each layer. The substrate is arranged vertically and attached to the side of the existing structural floor. Multiple substrates 11 are arranged along the circumferential direction of the existing structural floor 3. The load-bearing beam 12 is installed on the multiple substrates 11.

[0032] In this embodiment, the base plate 11 is installed on the existing structural floor 3 by means of expansion bolts.

[0033] A plurality of brackets 14 are provided on the load-bearing beam 12. The plurality of brackets are used for casting the fireproof board. The fireproof board is formed by cast-in-place.

[0034] In this embodiment, the load-bearing beam 12 is a channel steel or a square tube, and the channel steel or the square tube is filled with sound insulation cotton.

[0035] As a preferred embodiment, the width of the load-bearing beam 12 is adapted to the width of the fireproof board 13 .

[0036] The fireproof board 13 includes a template 131, a steel grid and concrete. The template 131 is laid on a plurality of brackets 14. The grid plate is installed on the template 131 and abuts against the outer side of the existing structural floor 3. Concrete is coated on the grid plate. The top of the fireproof board 13 is flush with the top of the existing structural floor 3.

[0037] In this embodiment, the bracket 14 includes a column 141 and a stiffening rib plate 142 .

[0038] The column 141 is vertically arranged on the load-bearing beam 12 . The upper end of the column 141 is supported on the template 131 .

[0039] The stiffening rib plate 142 is obliquely supported on the upper portion of the column 141 and the formwork 131 .

[0040] The curtain wall body 2 is installed on the attached board assembly 1 on the multi-layer existing structural floor 3. The side of the fireproof board 13 is against the inner side of the curtain wall body 2.

[0041] In this embodiment, the thickness of the existing structural floor is 250 mm, and the concrete strength grade is C30.

[0042] The base plate is a galvanized steel plate and is installed on the outer side of the existing structural floor through rear expansion bolts.

[0043] The load-bearing beam is a 16# channel steel. The load-bearing beam and the base plate are fully welded, and the weld foot height is 6mm.

[0044] The column is a galvanized square steel tube with a specification of 100mm×100mm×6mm. The bottom of the column is fully welded to the top of the galvanized load-bearing beam, and the weld foot height is 6mm. The stiffening rib is a galvanized steel plate rib with a specification of 6mm thick, which plays a reinforcing role. The top of the stiffening rib and the column are welded with a template. The template is made of galvanized steel plate with a thickness of 8mm and is set throughout the length. The bottom of the template is fully welded to the top of the column. The template plays the role of supporting the steel grille.

[0045] The size of the steel grid is 250×80mm, and the specifications of the steel grid plate are 80mm in width, 6mm in thickness, and 125×100mm in mesh. The surface treatment of the steel grid is acid-alkali soaking and zinc treatment, which has the effect of anti-corrosion. C20 concrete is poured into the mesh of the steel grid plate to consolidate and form a fireproof board. The fireproof board plays a load-bearing role and a fireproof seal between the upper and lower layers. The curtain wall body is installed on the side of the fireproof board away from the existing structural floor, which is the unit glass curtain wall after urban renewal and transformation.

[0046] The present invention provides a construction method for an urban renewal glass curtain wall structure of an existing building, comprising the following steps:

[0047] S1. Install a plurality of base plates 11 on the outer side of the existing structural floor 3 so that the plurality of base plates 11 are arranged along the circumferential direction of the existing structural floor 3.

[0048] S2 . Install the load beams 12 on the plurality of substrates 11 .

[0049] S3, placing a plurality of brackets 14 on the load-bearing beam 12.

[0050] S4, laying the template 131 on the multiple brackets 14.

[0051] S5. Install a grid plate on the template 131.

[0052] S6. Pour concrete on the formwork 131 , and the concrete is coated on the grid plate and solidified to form a fireproof board 13 , so that the top of the fireproof board 13 is flush with the top of the existing structural floor 3 .

[0053] S7, installing the curtain wall body 2 on the attached plate assembly 1 on the multi-story existing structural floor 3, so that the side of the fireproof board 13 abuts against the inner side of the curtain wall body 2.

[0054] The glass curtain wall structure for urban renewal of existing buildings of the present invention uses the outer side of the existing structural floor slab to set up the fireproof board through the base plate and the load-bearing beam. On the one hand, the curtain wall body is subsequently installed, and on the other hand, the fireproof sealing of the upper and lower layers is realized, thereby improving the aesthetics of the curtain wall installation. In addition, the glass curtain wall structure for urban renewal of existing buildings of the present invention has a short construction period, convenient construction and low cost.

[0055] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A glass curtain wall structure for urban renewal of an existing building, characterized in that: include: The attached plate assembly includes a plurality of base plates, a load-bearing beam and a fireproof plate, wherein the base plates are installed on the outer side of the existing structural floor plate, the plurality of base plates are arranged along the circumferential direction of the existing structural floor plate, the load-bearing beam is installed on the plurality of base plates, a plurality of brackets are arranged on the load-bearing beam, the fireproof plate includes a template, a steel grille and concrete, the template is laid on the plurality of brackets, the grille plate is installed on the template and abuts against the outer side of the existing structural floor plate, the concrete is coated on the grille plate, and the top of the fireproof plate is flush with the top of the existing structural floor plate; The curtain wall body is an attached plate assembly installed on the existing structural floor of multiple layers, and the side of the fireproof plate is against the inner side of the curtain wall body.

2. The glass curtain wall structure for urban renewal of existing buildings according to claim 1, characterized in that: The base plate is installed on the existing structural floor through expansion bolts.

3. The glass curtain wall structure for urban renewal of existing buildings according to claim 1, characterized in that: The load-bearing beam is a channel steel or a square tube.

4. The glass curtain wall structure for urban renewal of existing buildings according to claim 3, characterized in that: The channel steel or the square tube is filled with sound insulation cotton.

5. The glass curtain wall structure for urban renewal of existing buildings according to claim 3, characterized in that: The width of the load-bearing beam is adapted to the width of the fireproof board.

6. The glass curtain wall structure for urban renewal of existing buildings according to claim 1, characterized in that: The support comprises: A column, vertically arranged on the load-bearing beam, the upper end of the column being supported on the template; The stiffening rib plate is obliquely supported on the upper part of the column and the formwork.

7. A construction method for an urban renewal glass curtain wall structure of an existing building as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Installing a plurality of base plates on the outer side of the existing structural floor slab, so that the plurality of base plates are arranged along the circumferential direction of the existing structural floor slab; Installing load beams on the plurality of substrates; placing a plurality of brackets on the load-bearing beam; Laying templates on the multiple supports; Installing a grid plate on the template; Pouring concrete on the formwork, the concrete covering the grid plate and solidifying to form a fireproof board, so that the top of the fireproof board is flush with the top of the existing structural floor; The curtain wall body is installed on the attached plate assembly on the multi-layer existing structural floor slab, so that the side of the fireproof plate is against the inner side of the curtain wall body.

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