Construction method for core area commercial building without dismantling and erecting

Abstract

The application discloses a construction method for demolishing a core area commercial building without falling off a frame, which comprises the following steps: erecting an outer scaffold on the outer side of the building, and connecting the outer scaffold with the frame columns of the building; removing the building from top to bottom, and reserving at least four frame columns arranged in a matrix at the opposite ends of the street side of the building and the plate strips between the at least four frame columns; erecting a full scaffold on the at least four frame columns, and connecting the full scaffold with the outer scaffold; and removing the at least four frame columns and the plate strips by taking the full scaffold as a construction platform. The application solves the problem that the skyline of the building is gradually lowered, which influences the overall image of the core area commercial building.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a construction method for demolishing commercial buildings in core areas without dismantling the scaffolding. Background Technology

[0002] When demolishing existing buildings, scaffolding is typically erected first, and then gradually removed as the building is dismantled. Therefore, demolition lowers the building's skyline, which is detrimental to the overall commercial image of the core area.

[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 construction method for demolishing commercial buildings in core areas without dismantling the scaffolding is provided. This method addresses the problem that the gradual reduction of the building's skyline during demolition negatively impacts the overall image of the core commercial area.

[0005] To achieve the above objectives, a construction method for demolishing commercial buildings in core areas without dismantling the scaffolding is provided, comprising the following steps:

[0006] An external scaffold is erected on the outside of the building, and the external scaffold is tied to the frame columns of the building;

[0007] The building is demolished from top to bottom, while retaining at least four frame columns arranged in a matrix at opposite ends of the street-facing side of the building and the slab strip between the at least four frame columns.

[0008] Erect full-span scaffolding on the at least four frame columns and connect the full-span scaffolding to the external scaffolding;

[0009] Using the full-span scaffolding as a construction platform, the at least four frame columns and the slab strips are dismantled.

[0010] Furthermore, a doorway is formed at the bottom of the external scaffolding.

[0011] Furthermore, the aspect ratio of the full-span scaffolding is less than 3.

[0012] Furthermore, the full-span scaffolding is locally reinforced at the positions corresponding to the board strips.

[0013] Furthermore, the strip is manually broken and dismantled.

[0014] Furthermore, the at least four frame columns were dismantled using a truck crane after static cutting.

[0015] Furthermore, a fence is installed on the outside of the external scaffolding.

[0016] The beneficial effects of this invention are as follows: the construction method of demolishing commercial buildings in the core area without dismantling the scaffolding is achieved through fully enclosed demolition, thus maintaining the building's skyline, which is beneficial to the overall image of the core area's commerce and greatly meets the needs of urban renewal. The disc-lock scaffolding is fast, clean, and reusable, while the outer steel mesh can be used for advertising as needed, avoiding the commercial void during the demolition and reducing the impact of traditional demolition construction on people's lives. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figures 1 to 4 This is a schematic diagram illustrating the construction steps of a construction method for demolishing commercial buildings in the core area of ​​the present invention without dismantling the scaffolding.

[0019] Figure 5 This is a schematic diagram of the doorway of the external scaffolding according to an embodiment of the present invention. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figures 1 to 5 As shown, the present invention provides a construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, including the following steps:

[0023] S1. An external scaffold 1 is erected on the outer side of the street-facing side of building A, and the external scaffold 1 is connected to the frame columns 2 of building A.

[0024] A doorway 10 is formed at the bottom of the external scaffold 1. A fence 6 is installed on the outside of the external scaffold 1.

[0025] S2. Demolish building A from top to bottom, while retaining at least four frame columns 2 and the slab strip 3 between the opposite ends of the street-facing side of building A, which are arranged in a matrix.

[0026] S3. Erect full-span scaffolding 4 on at least four frame columns 2, and connect full-span scaffolding 4 to external scaffolding 1.

[0027] The aspect ratio of the full-span scaffolding 4 is less than 3.

[0028] The full-span scaffolding 4 is locally reinforced at the position corresponding to the board strip 3.

[0029] S4. Using the full-span scaffolding 4 as a construction platform, remove at least four frame columns 2 and slab strips 3.

[0030] The strip 3 was dismantled manually by breaking it apart.

[0031] At least four frame columns 2 were dismantled using a truck crane 5 after static cutting.

[0032] Before demolishing the building, external scaffolding was erected on the exterior of the building. The external scaffolding used a double-row disc-lock system. Steel mesh was hung on the outer side of the external scaffolding. The positions of the scaffolding uprights were designed to avoid the existing frame columns of the building on the inner side. Each layer of the external scaffolding was tied to the frame columns, and the scaffolding was maintained approximately 300mm away from the outer side of the new building.

[0033] See Figure 5 As shown, a 6m wide × 4.5m high doorway is reserved at the bottom of the external scaffolding as the construction entrance and exit on site. The uprights and horizontal bars on both sides of the doorway are reinforced, and I-beams are placed on the top. Channel steel is used to connect the I-beams together.

[0034] During the demolition of the building, the demolition work is carried out from top to bottom. On the street-facing side of the building, two rows of frame columns are retained without being demolished, and the slab strips between the two rows of frame columns are also retained to form an overall stable structure. The frame columns and slab strips are used to create a relatively stable post-demolition building structure.

[0035] After the building is demolished down to the ground floor, full-span scaffolding is erected between the remaining frame columns on the street-facing side of the building. This full-span scaffolding is connected to the external scaffolding. The height-to-width ratio of the full-span scaffolding is kept below 3 to ensure the smooth removal of columns and slabs.

[0036] The scaffolding needs to be reinforced in certain areas. The slabs and strips are removed manually by breaking them apart, and the concrete columns are statically cut and then lifted by a truck crane to complete the demolition of the structure.

[0037] The construction method for demolishing commercial buildings in the core area of ​​this invention, which allows for enclosed demolition and minimizes the impact on the surrounding environment, combines external scaffolding with internal full-span scaffolding, using the internal scaffolding as the tie point for the external scaffolding, ensuring safety and reliability.

[0038] The scaffolding uses a disc-lock type, which is reusable, aesthetically pleasing, clean, and environmentally friendly.

[0039] The construction method of demolishing commercial buildings in the core area without removing the scaffolding in this invention achieves demolition without removing the scaffolding through fully enclosed demolition, maintaining the building's skyline, which is beneficial to the overall image of the core area's commerce and greatly meets the needs of urban renewal. The disc-lock scaffolding construction is fast, clean and tidy, and can be reused. At the same time, the outer steel mesh can be used for advertising as needed, avoiding the commercial blank period during demolition and reducing the impact of traditional demolition construction on people's lives.

[0040] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A construction method for demolishing commercial buildings in a core area without dismantling the scaffolding, characterized in that, Includes the following steps: An external scaffold is erected on the outside of the building, and the external scaffold is tied to the frame columns of the building; The building is demolished from top to bottom, while retaining at least four frame columns arranged in a matrix at opposite ends of the street-facing side of the building and the slab strip between the at least four frame columns. A full-span scaffold is erected between the at least four frame columns, and the full-span scaffold is connected to the external scaffold; Using the full-span scaffolding as a construction platform, the at least four frame columns and the slab strips are dismantled.

2. The construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, as described in claim 1, is characterized in that... The bottom of the external scaffolding has a doorway.

3. The construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, as described in claim 1, is characterized in that... The aspect ratio of the full-span scaffolding is less than 3.

4. The construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, as described in claim 1, is characterized in that... The full-span scaffolding is locally reinforced at the positions corresponding to the board strips.

5. The construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, as described in claim 1, is characterized in that... The strip was manually broken and dismantled.

6. The construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, as described in claim 1, is characterized in that... The at least four frame columns were dismantled using a truck crane after static cutting.

7. The construction method for demolishing commercial buildings in the core area without dismantling the scaffolding, as described in claim 1, is characterized in that... The outer side of the external scaffolding is equipped with a fence.

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