Structure for additionally arranging cornice on existing building

Abstract

The utility model relates to a structure for additionally arranging a cornice on an existing building. The structure comprises an existing building roof; an existing building beam; one end of the cornice supporting rod is located above the existing building roof, and the other end of the cornice supporting rod extends out of the existing building roof and extends to the position below the existing building roof; the top of the existing parapet wall is detached to form a mounting surface parallel to the cornice supporting rods, and the mounting surface is parallel to the length direction of the existing parapet wall; the first mounting plate is arranged on the mounting surface, connected with the cornice and used for supporting the cornice; the supporting structure is installed on the outer side face of the existing building beam, and the supporting structure is connected with the cornice supporting rod and supports the cornice supporting rod. The supports are only installed on the existing parapet wall and the existing building beam to support the cornice, so that the cornice supporting structure does not need to damage an existing building roof and a waterproof layer, the existing parapet wall above the waterproof layer is locally dismantled, and the load of edge components can be reduced; and the increased load of the steel structure cornice is counteracted to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of building reconstruction, in particular to a structure for adding overhanging eaves to an existing building. Background Art

[0002] In accordance with the country's opinions on avoiding large-scale demolition and construction and promoting the renovation of old houses in cities and towns, many existing buildings have adopted the renovation idea of ​​"flat to slope" during the facade renovation process. Some of the projects have adopted the "full flat to slope" renovation, that is, adding a "steel slope roof" to the roof of the existing building as a whole. Another part of the projects, considering cost factors, only adds partial steel structure eaves around the roof layer of the existing building to enrich the facade shape.

[0003] In the renovation of adding steel structure cantilever eaves, the conventional practice is to use a local steel frame structure, using the structural members at the edge of the existing structure roof and the local support points added on the roof near the edge of the roof as the support points of the cantilever steel members. The added support points generally use independent column foundations.

[0004] The above approach has the following shortcomings: 1. In order to strengthen the connection between the newly added roof eaves and the existing main structure, the newly added independent column foundation needs to destroy the existing roof construction method and adopt treatments such as roughening the joint surface and embedding reinforcement with the main structure. The process is complicated and the construction is inconvenient; 2. The destruction of the existing roof method is a concave operation, which is very easy to damage the existing structural layer when mechanical cutting is used, and the efficiency is low when manual operation is used; 3. The existing building waterproof layer is destroyed, and even local repairs will bring leakage risks, affecting the use after the renovation; 4. The additional foundation and steel columns on the roof destroy the integrity of the roof and have a certain impact on the existing roof facilities; 5. The newly added independent column foundation and steel eaves load have a certain impact on the bearing capacity of the existing structural roof. The bearing capacity of the existing roof structure needs to be reviewed and reinforced when necessary. Utility Model Content

[0005] Based on the above description, the utility model provides a structure for adding an overhanging eave to an existing building, so as to solve the problem that the method of adding an overhanging eave to an existing building in the related art causes damage to the roof of the existing building.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] This application provides a structure for adding an overhanging eave to an existing building, and the technical solution adopted is as follows:

[0008] A structure for adding an overhanging eave to an existing building, comprising:

[0009] Existing building roofs;

[0010] An existing building beam located at the edge of the roof of the existing building;

[0011] An eaves support rod, one end of which is located above the roof of the existing building, and the other end of which extends outside the roof of the existing building and extends to below the roof of the existing building;

[0012] An existing parapet, wherein the top of the existing parapet is removed to form a mounting surface parallel to the overhanging eaves support rod, and the mounting surface is parallel to the length direction of the existing parapet;

[0013] A first mounting plate, which is disposed on the mounting surface and connected to the eaves support rod and supports the eaves support rod;

[0014] The supporting structure is installed on the outer side of the existing building beam, and the supporting structure is connected to the eaves supporting rod and supports the eaves supporting rod.

[0015] Preferably, the support structure comprises:

[0016] A second mounting plate is provided on the outer side of the existing building beam;

[0017] A vertical support rod, which is vertically arranged and has two ends respectively connected to the second mounting plate and the eaves support rod;

[0018] A horizontal support rod is perpendicular to the outer side surface of the existing building beam and has two ends respectively connected to the vertical support rod and the eaves support rod.

[0019] Preferably, the second mounting plate is parallel to and in contact with the outer side surface of the existing building beam, and the second mounting plate is anchored to the existing building beam by chemical anchor bolts.

[0020] Preferably, stiffening plates are provided between both sides of the vertical support rod and the second mounting plate.

[0021] Preferably, the horizontal support rod and the vertical support rod are square steel tubes or H-shaped steels.

[0022] Preferably, the first mounting plate is attached to the mounting surface and is anchored to the existing parapet by chemical anchor bolts.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0024] 1. The present application forms an installation surface by removing the top of the existing parapet wall, and arranges a first installation plate on the installation surface as a support for the cantilever eaves support rod, and arranges a support structure on the outer surface of the existing building beam as another support for the cantilever eaves support rod. The cantilever eaves support rod serves as an installation and support member for the cantilever eaves, and supports are installed on the existing parapet wall and the existing building beam to support the cantilever eaves, so that the cantilever eaves support structure does not need to damage the existing building roof and waterproof layer, thereby reducing damage to the existing building roof facilities, and partial removal of the existing parapet wall can be done by mechanical operation, which is highly efficient, and removal of the existing parapet wall above the height of the waterproof layer can reduce the load on the edge components, and offset the load increased by the steel structure cantilever eaves to a certain extent, thereby avoiding reinforcement of the existing structure as much as possible;

[0025] 2. The present application arranges a second mounting plate on the outer side of the existing building beam, and welds horizontal support rods and vertical support rods on the second mounting plate. The horizontal support rods and vertical support rods are used to support the eaves support rods, thereby improving the structural stiffness of the ends of the eaves support rods. At the same time, the slope of the eaves support rods can be changed by adjusting the lengths of the horizontal support rods and the vertical support rods, that is, the slope of the eaves and the visible width can be adjusted, and the application has strong adaptability to architectural shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of adding an overhanging eave to an existing building provided by an embodiment of the utility model;

[0027] Figure 2 A structural schematic diagram from another perspective of the structure of adding an overhanging eave to an existing building provided in an embodiment of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Existing building roof; 2. Existing building beams; 3. Existing parapet; 31. Installation surface; 4. Eaves support rod; 5. First installation plate; 6. Second installation plate; 7. Vertical support rod; 8. Horizontal support rod; 9. Stiffening plate; 10. Chemical anchor bolt. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0033] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0034] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0035] Reference Figure 1-2As shown, an embodiment of the present application provides a structure for adding an eave to an existing building, which includes an existing building roof 1, an existing building beam 2, an existing parapet 3, an eave support rod 4 and a supporting structure, wherein the existing building beam 2 is located at the edge of the existing building roof 1, one end of the eave support rod 4 is located above the existing building roof 1, and the other end extends outside the existing building roof 1 and extends to below the existing building roof 1. In order to support the eave support rod 4, the top of the existing parapet 3 is removed to form an installation surface 31 parallel to the eave support rod 4, and the installation surface 31 is parallel to the length direction of the existing parapet 3. At the same time, a first installation plate 5 is arranged on the installation surface 31, and the eave support rod 4 is connected to the first installation plate 5 and supports the eave support rod 4 through the first installation plate 5; the supporting structure is installed on the outer side of the existing building beam 2, and the supporting structure is connected to the eave support rod 4 and supports the eave support rod 4.

[0036] Reference Figure 1-2 As shown, specifically, the installation surface 31 is formed by dismantling the existing parapet 3 according to the designed eaves slope, so that the installation surface 31 is parallel to the eaves support rod 4 and the eaves to increase the support surface of the eaves support rod 4, and the first installation plate 5 is parallel to the installation surface 31 and is arranged in close contact with the installation surface 31. The first installation plate 5 is anchored on the existing parapet 3 by a plurality of chemical anchor bolts 10, and the upper end of the eaves support rod 4 is welded and fixed to the first installation plate 5.

[0037] Reference Figure 1-2 As shown, further, the supporting structure includes a second mounting plate 6, a vertical support rod 7 and a horizontal support rod 8. The second mounting plate 6 is arranged on the outer side surface of the existing building beam 2, the vertical support rod 7 is vertically arranged and the two ends are respectively connected to the second mounting plate 6 and the eaves support rod 4, and the horizontal support rod 8 is perpendicular to the outer side surface of the existing building beam 2 and the two ends are respectively connected to the vertical support rod 7 and the eaves support rod 4.

[0038] Reference Figure 1-2 As shown, specifically, the second mounting plate 6 is arranged in contact with the outer side of the existing building beam 2, and the second mounting plate 6 is anchored on the existing building beam 2 through a plurality of chemical anchor bolts 10, the lower end of the vertical support rod 7 is in contact with the second mounting plate 6 and is welded and fixed to the second mounting plate 6, and the upper end of the vertical support rod 7 is welded and fixed to the overhanging eaves support rod 4; one end of the horizontal support rod 8 is welded and fixed to the vertical support rod 7, and the other end is welded and fixed to the overhanging eaves support rod 4. The vertical support rod 7 and the horizontal support rod 8 form a triangular support structure to support the overhanging eaves support rod 4, thereby improving the structural strength of the overhanging eaves support rod 4, that is, improving the structural strength of the added overhanging eaves.

[0039] In the embodiment of the present application, the supporting components of the overhanging eaves are only arranged on the existing building beams 2 and the existing parapet 3, which are the edge structural members of the existing building roof 1. The existing parapet 3 is partially removed to form a mounting surface 31. A first mounting plate 5 is arranged on the mounting surface 31 as an overhanging eave support. A second mounting plate 6 is arranged on the outer surface of the existing building beam 2 to provide mounting points for the horizontal support rod 8 and the vertical support rod 7. The second mounting plate 6, the horizontal support rod 8 and the vertical support rod 7 serve as another overhanging eave support. The first mounting plate 5, the second mounting plate 6, the horizontal support rod 8 and the vertical support rod 7 jointly support the overhanging eave support rod 4 and the overhanging eaves. The existing parapet 3 and the existing building beam 2 are the edge components of the existing building roof 1. This structure does not need to destroy the existing roof structure and waterproof layer, etc., which reduces the damage to the facilities of the existing building roof 1. The partial removal of the existing parapet 3 can be carried out by mechanical operation, which is highly efficient. The removal of the existing parapet 3 above the height of the waterproof layer can reduce the load of the edge components, and offset the load increased by the steel structure overhanging eaves to a certain extent, so as to avoid reinforcing the existing structure as much as possible.

[0040] Furthermore, when the horizontal support rod 8 and the vertical support rod 7 support the eaves support rod 4, the slope of the eaves support rod 4 can be changed by adjusting the length of the horizontal support rod 8 and the vertical support rod 7, that is, the slope and visible width of the eaves can be adjusted, which has strong adaptability to architectural shape.

[0041] Reference Figure 2 As shown, further, in order to improve the structural strength of the supporting structure, a plurality of stiffening plates 9 are provided between the two sides of the vertical support rod 7 and the second mounting plate 6 to improve the horizontal rigidity of the vertical support rod 7 .

[0042] When designing the eaves support rod 4, the horizontal support rod 8 and the vertical support rod 7, a cross-sectional shape is selected that is convenient for the subsequent installation of secondary components, such as a rectangle, H-shape, etc. In this embodiment, the eaves support rod 4, the horizontal support rod 8 and the vertical support rod 7 can be made of square steel pipes or H-shaped steels, which can be selected according to actual conditions.

[0043] The sizes of the first mounting plate 5 and the second mounting plate 6 are set according to the sizes of the existing parapet 3 and the existing building beam 2, and the corresponding number and specifications of the chemical anchors 10 are set according to the design strength. Structural adhesive is poured between the first mounting plate 5 and the existing parapet 3 and between the second mounting plate 6 and the existing building beam 2 to ensure firm bonding.

[0044] In summary, the structure of adding eaves to the existing building of the present application only sets supporting structures on the existing parapet 3 and the existing building beams 2 to support the eaves support rods 4, without destroying the existing roof construction methods and waterproof layer, and the partial demolition of the existing parapet 3 can be carried out by mechanical operations, which is highly efficient; the horizontal support rods 8 and the vertical support rods 7 are connected to the eaves support pipe, which can improve the structural rigidity of the eaves end itself, and at the same time, the eaves slope and the visible width can be changed by adjusting the size and angle of the horizontal support rods 8 and the vertical support rods 7, and it has strong adaptability to the architectural shape; dismantling the existing parapet 3 above the height of the waterproof layer can reduce the load on the edge components, and offset the load increased by the steel structure eaves to a certain extent, avoiding reinforcement of the existing structure as much as possible.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for adding an overhanging eave to an existing building, characterized in that: include: Existing building roofs (1); An existing building beam (2), which is located at the edge of the existing building roof (1); An eaves support rod (4), one end of which is located above the existing building roof (1), and the other end of which extends outside the existing building roof (1) and extends to below the existing building roof (1); An existing parapet (3), wherein the top of the existing parapet (3) is removed to form a mounting surface (31) parallel to the overhanging eaves support rod (4), and the mounting surface (31) is parallel to the length direction of the existing parapet (3); A first mounting plate (5), which is arranged on the mounting surface (31) and is connected to the eaves support rod (4) and supports the eaves support rod (4); A support structure is installed on the outer side of an existing building beam (2); the support structure is connected to the eaves support rod (4) and supports the eaves support rod (4).

2. The structure for adding an overhanging eave to an existing building according to claim 1, characterized in that: The support structure comprises: A second mounting plate (6) is arranged on the outer side of the existing building beam (2); A vertical support rod (7), which is arranged vertically and has two ends respectively connected to the second mounting plate (6) and the eaves support rod (4); A horizontal support rod (8) is perpendicular to the outer side surface of the existing building beam (2) and its two ends are respectively connected to the vertical support rod (7) and the eaves support rod (4).

3. The structure for adding an overhanging eave to an existing building according to claim 2, characterized in that: The second mounting plate (6) is parallel to the outer side surface of the existing building beam (2) and fits the outer side surface of the existing building beam (2), and the second mounting plate (6) is anchored to the existing building beam (2) via chemical anchor bolts (10).

4. The structure for adding an overhanging eave to an existing building according to claim 3, characterized in that: Stiffening plates (9) are provided between the two sides of the vertical support rod (7) and the second mounting plate (6).

5. The structure for adding an overhanging eave to an existing building according to claim 2, characterized in that; The horizontal support rod (8) and the vertical support rod (7) are square steel tubes or H-shaped steels.

6. The structure for adding an overhanging eave to an existing building according to claim 1, characterized in that: The first mounting plate (5) is attached to the mounting surface (31) and is anchored to the existing parapet (3) via chemical anchor bolts (10).

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