Urban renewal glass curtain wall structure of existing building and construction method thereof

Abstract

The application discloses a kind of urban renewal glass curtain wall structure of existing building and its construction method, comprising: plate assembly, including multiple substrates, bearing beam and fireproof plate, substrate is installed on the outside of existing structure floor, multiple substrates are arranged along the circumferential direction of existing structure floor, bearing beam is installed on multiple substrates, bearing beam is equipped with multiple supports, fireproof plate includes formwork, steel grid and concrete, formwork is laid on multiple supports, grid plate is installed on formwork and abuts on the outside of existing structure floor, concrete is covered in grid plate, the top of fireproof plate is flush with the top of existing structure floor;Curtain wall body is installed on the plate assembly of multiple layers existing structure floor, and the side of fireproof plate abuts on the inside of curtain wall body.The application solves the problem that curtain wall cannot be installed on the outer facade of existing building, and there is a large gap between curtain wall and floor structure, which cannot bear weight.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a glass curtain wall structure for urban renewal of existing buildings and its construction method. Background Technology

[0002] Many urban buildings are gradually entering their "middle age" or "old age," and their facades can no longer meet people's daily needs. Based on the requirements of urban renewal, large-area curtain walls have greatly improved the lighting and quality of office buildings. However, this also brings a problem: because there is usually a gap of more than 200mm between the curtain wall and the floor structure, although the curtain wall can achieve fireproof sealing between each floor, the appearance is usually poor and it cannot bear weight. Extending the finished floor directly on top would pose quality and safety hazards, thus affecting the quality requirements of the office building. Therefore, constructing the structural components between the glass curtain wall and the existing building during urban renewal is a practical and feasible method.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a glass curtain wall structure for urban renewal of existing buildings and its construction method are provided to solve the problem of large gaps between the curtain wall and the floor structure when installing curtain walls on the exterior facade of existing buildings, making it unable to bear the load.

[0005] To achieve the above objectives, a glass curtain wall structure for urban renewal of existing buildings is provided, comprising:

[0006] The auxiliary panel assembly includes multiple base plates, a load-bearing beam, and a fireproof panel. The base plates are installed on the outside of the existing structural floor slab, and the multiple base plates are arranged along the circumferential direction of the existing structural floor slab. The load-bearing beam is installed on the multiple base plates, and multiple supports are provided on the load-bearing beam. The fireproof panel includes a template, a steel grating, and concrete. The template is laid on the multiple supports, the grating is installed on the template and abuts against the outside of the existing structural floor slab, the concrete covers the grating, and the top of the fireproof panel is flush with the top of the existing structural floor slab.

[0007] The curtain wall body is an attached panel assembly installed on the existing multi-story structural floor slab, with the side of the fireproof panel abutting against the inner side of the curtain wall body.

[0008] Furthermore, the substrate is mounted to the existing structural floor slab using expansion bolts.

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

[0010] Further, the channel steel or the square tube is filled with soundproof cotton.

[0011] Further, the width of the load bearing beam is adapted to the width of the fireproof plate.

[0012] Further, the support comprises:

[0013] a column vertically arranged on the load bearing beam, the upper end of the column being supported on the formwork;

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

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

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

[0017] a load bearing beam is installed on the plurality of base plates;

[0018] a plurality of supports are arranged on the load bearing beam;

[0019] a formwork is laid on the plurality of supports;

[0020] a grating plate is installed on the formwork;

[0021] concrete is cast on the formwork, the concrete is wrapped on the grating plate to form a fireproof plate, so that the top of the fireproof plate is flush with the top of the existing structure floor;

[0022] a curtain wall body is installed on the plurality of attachment plate assemblies on the existing structure floor, so that the side of the fireproof plate abuts against the inner side of the curtain wall body.

[0023] The present application has the beneficial effect that the urban renewal glass curtain wall structure of existing building of the present application uses the outer side of the existing structure floor to erect a fireproof plate through a base plate and a load bearing beam, on the one hand, a curtain wall body is installed subsequently, on the other hand, the fireproof closure of upper and lower layers is realized, and the aesthetic degree of curtain wall installation is improved. In addition, the construction period of the urban renewal glass curtain wall structure of existing building of the present application is short, the construction is convenient, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

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

[0025] Figure 1A structural schematic view of a glass curtain wall structure for urban renewal of an existing building according to an embodiment of the present application.

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

[0027] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation on the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0029] Referring to Figure 1 and Figure 2 , the present application provides a glass curtain wall structure for urban renewal of an existing building, comprising: a sub-plate assembly 1 and a curtain wall body 2.

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

[0031] Specifically, the number of base plates is a plurality. The base plates 11 are installed on the outer side of the existing structure floor slab 3. The outer side of the existing structure floor slab of each floor is provided with a plurality of base plates. The base plates are vertically arranged and attached to the side of the existing structure floor slab. The plurality of base plates 11 are arranged along the circumferential direction of the existing structure floor slab 3. The load-bearing beam 12 is installed on the plurality of base plates 11.

[0032] In this embodiment, the base plates 11 are installed on the existing structure floor slab 3 by expansion bolts.

[0033] The load-bearing beam 12 is provided with a plurality of supports 14. The plurality of supports are used for pouring the fireproof plate. The fireproof plate is formed by cast-in-place.

[0034] In this embodiment, the load-bearing beam 12 is a channel steel or a square tube. 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 plate 13.

[0036] The fireproof plate 13 comprises a formwork 131, a steel grid and concrete. The formwork 131 is laid on the plurality of supports 14. The grid plate is installed on the formwork 131 and abuts against the outer side of the existing structure floor slab 3. The concrete is wrapped around the grid plate. The top of the fireproof plate 13 is flush with the top of the existing structure floor slab 3.

[0037] In the embodiment, the support 14 comprises a column 141 and a stiffening rib plate 142.

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

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

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

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

[0042] The base plate is a galvanized steel plate. The base plate is installed on the outer side of the existing structure floor through post-expansion bolt.

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

[0044] The column is a galvanized square steel pipe with a size of 100 mm*100 mm*6 mm. The bottom of the column is fully welded with the top of the bearing beam, and the weld leg height is 6 mm. The stiffening rib plate is a galvanized steel rib with a thickness of 6 mm, which plays a reinforcing role. The formwork is welded at the top end of the stiffening rib plate and the column. The formwork is made of a galvanized steel plate with a thickness of 8 mm and is arranged along the length. The bottom of the formwork is fully welded with the upper end of the column. The formwork plays a role of supporting the steel grating.

[0045] The size of the steel grating is 250*80 mm, the steel grating plate has a width of 80 mm, a thickness of 6 mm, and a mesh of 125*100 mm. The surface treatment of the steel grating is carried out after acid and alkali soaking and surface zinc treatment, which plays a role of corrosion resistance and the like. The mesh of the steel grating plate is poured with C20 concrete to consolidate and form a fireproof plate. The fireproof plate plays a role of bearing and fireproof sealing between the upper and lower layers. The side of the fireproof plate away from the existing structure floor is installed with the curtain wall body, which is a unit glass curtain wall for urban renewal and reconstruction.

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

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

[0048] S2, a bearing beam 12 is installed on the plurality of base plates 11.

[0049] S3, a plurality of supports 14 are arranged on the bearing beam 12.

[0050] S4, laying a template 131 on the plurality of supports 14.

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

[0052] S6, pouring concrete on the template 131, the concrete being wrapped on the grid plate to form the fireproof plate 13, so that the top of the fireproof plate 13 is flush with the top of the existing structure floor 3.

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

[0054] The urban renewal glass curtain wall structure of the existing building of the present application uses the outer side of the existing structure floor to erect the fireproof plate through the base plate and the bearing beam, on the one hand, the curtain wall body is installed subsequently, on the other hand, the fireproof closure of the upper and lower layers is realized, and the aesthetic degree of the curtain wall installation is improved. In addition, the construction period of the urban renewal glass curtain wall structure of the existing building of the present application is short, the construction is convenient, and the cost is low.

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

Claims

1. A glass curtain wall structure for urban renewal of existing buildings, characterized in that, include: The auxiliary panel assembly includes multiple base plates, a load-bearing beam, and a fireproof panel. The base plates are installed on the outside of the existing structural floor slab, and the multiple base plates are arranged along the circumferential direction of the existing structural floor slab. The load-bearing beam is installed on the multiple base plates, and multiple supports are provided on the load-bearing beam. The fireproof panel includes a template, a steel grating, and concrete. The template is laid on the multiple supports, the steel grating is installed on the template and abuts against the outside of the existing structural floor slab, the concrete covers the steel grating, and the top of the fireproof panel is flush with the top of the existing structural floor slab. The curtain wall body is an attached panel assembly installed on the existing multi-story structural floor slab, with the side of the fireproof panel abutting 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 slab using 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-insulating 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 includes: The column is erected on the supporting beam, and the upper end of the column is supported by the template; Stiffening ribs are diagonally supported on the upper part of the column and the template.

7. A construction method for an urban renewal glass curtain wall structure of an existing building as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Multiple base plates are installed on the outside of the existing structural floor slab, such that the multiple base plates are arranged along the circumferential direction of the existing structural floor slab. The load-bearing beams are mounted on the plurality of base plates; Multiple supports are installed on the load-bearing beam; Templates are laid on the multiple supports; Install steel grating on the template; Concrete is poured onto the template, and the concrete covers and solidifies the steel grating to form a fireproof board, so that the top of the fireproof board is flush with the top of the existing structural floor slab. The curtain wall body is installed on the attached plate assembly on the multi-layer existing structural floor slab, such that the side of the fireproof plate abuts against the inside of the curtain wall body.

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