Construction method for protecting buildings from renovation outside

Abstract

The application provides a construction method for protecting a building from repair outside a site, which comprises the following steps: moving the protected building to a position of an intermediate site outside the site, supporting the protected building by using temporary supports; reserving grouting sleeves on a top plate of a basement; building a pier column support; constructing a support platform on the pier column support, and embedding threaded sleeves on a top surface and a bottom surface of the support platform at positions corresponding to permanent structure columns; jacking the protected building to the support platform, installing first permanent column steel bars in the first threaded sleeves, and constructing an internal frame structure of the protected building; moving back the support platform and the protected building, connecting second permanent column steel bars with the grouting sleeves by installing the second permanent column steel bars in second threaded sleeves, and fixing the support platform and the top plate of the basement; and repairing an outer facade and a decoration of the protected building. The application places the repair process in advance, greatly shortens a repair construction period, and facilitates the transportation of construction tools and materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and in particular to a construction method for repairing a protected building outside a construction site. BACKGROUND

[0002] Since the protected building not only needs to be repaired in terms of its own structure, but also needs to be developed in terms of the underground space of the protected building, the protected building needs to be moved and then repaired. A common construction method for repairing a protected building generally involves moving the protected building to an intermediate site (i.e., a site where the protected building is temporarily placed), completing the underground structure, moving the protected building back to the original site, repairing the protected building on the original site, removing the excess structure of the protected building to retain the outer wall, then constructing the internal frame structure (permanent structure columns, beams, and plates) to meet the support requirements of the protected building structure, and finally performing facade repair and decoration construction. Therefore, this construction method has a long construction period. After the protected building is moved back to the original site, the repair work is performed on the original site. However, due to the small spacing between the protected buildings, the transportation of large machinery and materials is not possible, which greatly affects the safety, progress, and cost of the construction. SUMMARY

[0003] In view of the above, the present application provides a construction method for repairing a protected building outside a construction site to solve the problems of a long construction period in the existing repair construction method and the small spacing between protected buildings when the protected building is moved back to the original site and the repair is performed on the original site, which makes it inconvenient to transport construction tools.

[0004] To achieve the above object, the technical solution adopted by the present application is to provide a construction method for repairing a protected building outside a construction site, which comprises the following steps:

[0005] The protected building was moved to an off-site intermediate location, and temporary supports were used to support it, creating a support space beneath it. Basement construction was carried out at the original site location, with grouting sleeves pre-installed on the basement's roof slab. Pier supports were constructed within the support space. A support platform was built on the pier supports, positioned directly opposite the protected building. A first threaded sleeve was pre-embedded on the top surface of the support platform at the location corresponding to a permanent structural column of the protected building, and a second threaded sleeve was pre-embedded on the bottom surface of the support platform at the location corresponding to the first threaded sleeve. The protected building was then... The protective building is then moved onto the supporting platform; a first permanent column reinforcement is installed in the first threaded sleeve, and the first permanent column reinforcement is tied to the permanent column structural column reinforcement and concrete is poured, followed by the construction of the internal frame structure of the protective building; the supporting platform and the protective building are moved back to the top slab of the basement, a second permanent column reinforcement is installed in the second threaded sleeve, and the second permanent column reinforcement is inserted into the grouting sleeve, grouting is performed on the grouting sleeve to fix the supporting platform to the top slab of the basement; the exterior facade of the protective building is repaired and decorated.

[0006] Preferably, before moving the protected building to the location of the off-site intermediate site, a plain concrete cushion layer is laid at the location of the off-site intermediate site, and a foundation slab is constructed on the plain concrete cushion layer.

[0007] Preferably, before the protected building is moved to the off-site intermediate location, a jacking and support system is constructed for the protected building; when temporary supports are used to support the protected building, the jacking and support system is used to support the protected building onto the temporary supports.

[0008] Preferably, when constructing the pier supports in the support space, multiple pier supports are constructed in a matrix arrangement.

[0009] Preferably, the support platform includes longitudinally and transversely connected connecting beams. When constructing the support platform on the pier support, the inner side of the connecting beam is flush with the inner side of the permanent structural column, and the first threaded sleeve is pre-embedded on the top surface of the connecting beam, and the second threaded sleeve is pre-embedded on the bottom surface of the connecting beam.

[0010] Preferably, when constructing the support platform on the pier support, the bottom surface of the connection point between the longitudinal connecting beam and the transverse connecting beam is supported on the pier support.

[0011] Preferably, when constructing the support platform on the pier support, the connecting beam is positioned below the permanent structural column and the wall of the protective building.

[0012] Preferably, after the protective building is transferred to the support platform, and before the first permanent column reinforcement is installed in the first threaded sleeve, the walls of the protective building are reinforced.

[0013] Preferably, when the top surface of the support platform is pre-embedded with the first threaded sleeve at the position corresponding to the permanent structural column of the protected building, the pre-embedded first threaded sleeve is temporarily sealed with concrete; after the protected building is placed on the support platform and before the first permanent column reinforcement is installed in the first threaded sleeve, the concrete on the surface of the first threaded sleeve is removed.

[0014] Preferably, after the basement construction is carried out at the original site location, and after the construction of the internal frame structure of the protected building is carried out, before the support platform and the protected building are moved back to the top slab of the basement, the pier support and the support platform are cut and separated by static cutting.

[0015] The beneficial effects of this invention are as follows: The construction method for off-site repair of a protected building, with its pier support and support platform, allows the protected building to not only be moved to the support platform for temporary storage, but also to have permanent structural columns installed in threaded sleeves on the support platform, enabling the construction of both the permanent structural columns and the internal frame structure of the protected building. Furthermore, during the relocation of the protected building and the building platform, the permanent structural columns are connected to the grouting sleeves in the basement roof slab through the installation of permanent structural columns in the threaded sleeves, achieving connection between the protected building and the basement roof slab. This invention allows for repair work to be carried out during the window period when the protected building is moved to an intermediate off-site location, thus advancing the repair process and significantly shortening the construction cycle. Moreover, it allows for the design of transportation conditions at the intermediate off-site location according to construction needs, improving construction conditions, efficiently utilizing construction machinery, rationally allocating labor, solving the problem of transporting construction materials for the protected building repair, and reducing project costs to a certain extent. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the supporting platform structure in the construction method for protecting off-site building repairs according to the present invention.

[0018] Figure 2 This is a schematic diagram showing the positional relationship between the connecting beams, permanent structural columns, and retained walls in the construction method for off-site renovation of protected buildings according to the present invention.

[0019] Figure 3 This is a schematic diagram of the distribution of connecting beams in the construction method for protecting off-site building repairs according to the present invention.

[0020] Figure 4 This is a schematic diagram of the distribution of pier supports in the construction method for off-site repair of protected buildings according to the present invention.

[0021] Figure 5 This is a schematic diagram showing the distribution of the first and second threaded sleeves in the construction method for protecting off-site building repairs according to the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the construction method for off-site repair of protected buildings according to the present invention, which involves lifting and supporting the protected building onto a support platform.

[0023] Figure 7 This is a structural schematic diagram of the permanent structural columns and permanent structural beams of the construction method for protecting off-site building repairs according to the present invention.

[0024] Figure 8 This is a schematic diagram of the structure connecting the protected building and the basement roof slab in the construction method for off-site repair of protected buildings according to the present invention.

[0025] The correspondence between the reference numerals and components in the attached drawings is as follows:

[0026] 1-Protected building; 2-Supporting platform; 21-Connecting beam; 3-First threaded sleeve; 4-Second threaded sleeve; 5-First permanent column reinforcement; 6-Second permanent column reinforcement; 7-Permanent structural column; 8-Permanent structural beam; 9-Basement roof slab; 10-Grouting sleeve; 11-Off-site intermediate site; 12-Plain concrete cushion layer; 13-Foundation base slab; 14-Jumping and supporting system; 15-Pier support; 16-Retained wall. Detailed Implementation

[0027] To facilitate understanding of the present invention, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0028] Please see Figures 1 to 8 This invention provides a construction method for protecting buildings during off-site repairs, comprising the following steps:

[0029] The protected building 1 is moved to the off-site intermediate location 11. Temporary supports are used to support the protected building 1, creating a support space beneath it. Basement construction is carried out at the original site location, with grouting sleeves 10 pre-installed on the basement roof slab 9. Pier supports 15 are constructed within the support space. A support platform 2 is constructed on the pier supports 15, directly facing the protected building 1. A first threaded sleeve 3 is pre-embedded on the top surface of the support platform 2 at the location corresponding to the permanent structural column 7 of the protected building 1, and a second threaded sleeve 4 is pre-embedded on the bottom surface of the support platform 2 at the location corresponding to the first threaded sleeve 3. The protective building 1 is then moved onto the support platform 2. The first permanent column reinforcement 5 is installed in the first threaded sleeve 3, and the first permanent column reinforcement 5 is tied to the permanent column structural column reinforcement and concrete is poured. Then, the internal frame structure of the protective building 1 is constructed. The support platform 2 and the protective building 1 are moved back to the top slab 9 of the basement. The second permanent column reinforcement 6 is installed in the second threaded sleeve 4 and inserted into the grouting sleeve 10. Grouting is performed on the grouting sleeve 10 to fix the support platform 2 to the top slab 9 of the basement. The exterior facade of the protective building 1 is repaired and decorated.

[0030] As a preferred implementation method, such as Figure 1 As shown, before moving the protected building 1 to the location of the off-site intermediate site 11, a plain concrete cushion layer 12 is laid at the location of the off-site intermediate site 11, and the foundation slab 13 is constructed on the plain concrete cushion layer 12.

[0031] As a preferred implementation method, such as Figure 1 As shown, before moving the protected building 1 to the off-site intermediate site 11, the jacking and support system 14 is constructed for the protected building 1. When supporting the protected building 1 with temporary supports, the protected building 1 is lifted onto the temporary supports using jacks and the jacking and support system 14.

[0032] As a preferred implementation method, such as Figure 4 As shown, when constructing the pier support 15 in the supporting space, multiple pier supports 15 are constructed in a matrix arrangement.

[0033] As a preferred implementation method, such as Figure 2 and Figure 3 As shown, the support platform 2 includes longitudinally and transversely connected connecting beams 21. When constructing the support platform 2 on the pier support 15, the inner side of the connecting beams 21 is flush with the inner side of the permanent structural column 7. A first threaded sleeve 3 is pre-embedded on the top surface of the connecting beams 21, and a second threaded sleeve 4 is pre-embedded on the bottom surface of the connecting beams 21. Figure 5 As shown.

[0034] As a preferred implementation method, such as Figure 4As shown, when constructing the support platform 2 on the pier support 15, the bottom surface of the connection point of the longitudinal connecting beam 21 and the transverse connecting beam 21 is supported on the pier support 15.

[0035] As a preferred implementation method, such as Figure 4 As shown, when constructing the support platform 2 on the pier support 15, the connecting beam 21 is positioned to correspond to the permanent structural column 7 and the wall below, and the width of the connecting beam 21 is not less than the sum of the width of the wall of the protected building 1 and the width of the permanent structural column 7.

[0036] As a preferred implementation method, after the protective building 1 is transferred to the support platform 2, the wall of the protective building 1 is reinforced before the first permanent column steel bar 5 is installed in the first threaded sleeve 3.

[0037] As a preferred implementation, when the top surface of the support platform 2 is pre-embedded with the first threaded sleeve 3 at the position of the permanent structural column 7 of the corresponding protected building 1, the pre-embedded first threaded sleeve 3 is temporarily sealed with concrete.

[0038] After the protected building 1 is transferred to the support platform 2, and before the first permanent column reinforcement 5 is installed in the first threaded sleeve 3, the concrete on the surface of the first threaded sleeve 3 is removed.

[0039] As a preferred implementation method, after the basement construction is carried out at the original site location, and after the construction of the internal frame structure of the protected building 1 is carried out, before the support platform 2 and the protected building 1 are moved back to the top slab 9 of the basement, the pier support 15 and the support platform 2 are cut and separated by static cutting.

[0040] The specific steps of the construction method for off-site repair of protected buildings according to the present invention are as follows:

[0041] Step 1: Temporary reinforcement and jacking replacement system 14 construction for protected building 1;

[0042] Furthermore, during the repair of the protected building 1 at the off-site intermediate site 11, the temporary reinforcement and jacking and replacement system 14 of the protected building 1 shall not be damaged. This is a prerequisite for the relocation of the protected building 1 after the off-site repair is completed. After the temporary reinforcement of the protected building 1 is carried out, the protected building is cut off from the original foundation, and a replacement beam, i.e., the jacking and replacement system 14 used in conjunction with jacks, is set on the cut section.

[0043] Step 2: Construct the foundation for off-site intermediate site 11;

[0044] First, level the land of the off-site intermediate site 11 to ensure that the foundation is solid and reliable. Then, lay a 100mm thick plain concrete cushion layer 12 on the land of the off-site intermediate site 11. Construct a 300mm thick foundation slab 13 on the land of the off-site intermediate site 11 as the foundation of the intermediate site. The foundation slab 13 is reinforced with double-layer bidirectional steel bars. The foundation of the intermediate site must meet the off-site repair requirements of the protected building 1.

[0045] Next, construct temporary supports for the protective structure 1.

[0046] Step 3: Protect the building by moving it horizontally;

[0047] The protective building 1 was moved to an off-site intermediate site 11 using building translation construction technology. Then, the protective building 1 was lifted onto a temporary support using jacks and a lifting and replacement system 14, forming a support space below the protective building 1.

[0048] After the protected building 1 was moved to an intermediate site 11 off-site, basement construction was carried out at the original site location. For example... Figure 8 As shown, during the construction of the basement structure, the permanent structural columns 7 of the protected building 1 are laid out so that the top slab 9 of the basement is reserved with grouting sleeves 10 and grouting ports at the positions corresponding to the permanent structural columns 7.

[0049] Step 4: Construct pier support platform 2 (15-piece support platform);

[0050] like Figure 1 As shown, the reinforcement, formwork, and concrete pouring of the concrete support platform 2 and the pier support 15 are carried out in the support space. The pier support 15 is constructed first within the support space, and then the support platform 2 is constructed on the pier support 15. In this embodiment, the design elevation of the support platform 2 is 500mm.

[0051] The pier supports are constructed in a matrix arrangement.

[0052] The support platform 2 consists only of longitudinal and transverse reinforced concrete connecting beams 21. There are no structural slabs between the connecting beams 21. The planar position of the connecting beams 21 needs to be determined in conjunction with the later renovation drawings of the protected building 1.

[0053] The principle behind the design of coupling beam 21 is as follows:

[0054] (1) The width of the connecting beam 21 needs to take into account the permanent structural column 7 of the protected building 1. The inner side of the connecting beam 21 is flush with the inner side of the permanent structural column 7, such as Figure 2 As shown.

[0055] (2) The connecting beam 21 is located below the preserved wall 16 and the permanent structural column 7 of the protected building 1, and the width of the connecting beam 21 is not less than the sum of the width of the preserved wall 16 and the width of the permanent structural column 7, such as... Figure 2 and Figure 3As shown.

[0056] like Figure 5 As shown, during the construction of the connecting beam 21, a first threaded sleeve 3 is pre-embedded on the top surface of the connecting beam 21 at the position corresponding to the permanent structural column 7, and a second threaded sleeve 4 is pre-embedded on the bottom surface of the connecting beam 21 at the position corresponding to the permanent structural column 7. The first threaded sleeve 3 and the second threaded sleeve 4 are temporarily sealed to avoid contamination of the threaded sleeves.

[0057] like Figure 4 As shown, when constructing the support platform 2 on the pier support 15, the connection point of the longitudinal connecting beam 21 and the transverse connecting beam 21 is supported on the pier support 15.

[0058] Step 5: Transfer the protected structure 1 onto the support platform 2;

[0059] like Figure 6 As shown, once the support platform 2 and the pier support 15 reach 100% strength, the protective building 1 will be lifted onto the support platform 2 using jacks and the lifting and replacement system 14.

[0060] Step 6: Demolish the excess walls of protected building 1 and carry out internal frame structure construction;

[0061] like Figure 7 As shown, after the protected building 1 is transferred to the support platform 2, the excess structure of the protected building 1 is demolished. During the demolition, care should be taken to protect the remaining wall 16, and a steel structure can be used for temporary reinforcement.

[0062] After the redundant structure of Protected Building 1 is demolished, the construction of the permanent structure of Protected Building 1 (i.e., permanent structural columns 7 and permanent structural beams 8) can begin. The concrete on the surface of the first threaded sleeve 3 of the supporting platform 2 is removed, and the first permanent column reinforcing bars 5 are tied inside the first threaded sleeve 3. These first permanent column reinforcing bars 5 are then tied to the reinforcing bars of the permanent structural column 7, and concrete is poured. After the construction of the permanent structural column 7 is completed, the construction of the permanent structural beams 8 is carried out on top of the permanent structural column 7, further completing the construction of the second floor and roof structure of Protected Building 1, thereby achieving the repair of the internal frame structure of Protected Building 1.

[0063] Step 6: Relocate the protected building 1 back to its original location;

[0064] Using jacks and a lifting and supporting system 14, the protective building 1 and the supporting platform 2 are lifted. Then, static cutting is used to separate the pier support 15 from the supporting platform 2. Following this, building translation construction technology is used to move the protective building 1 into place. Static cutting is a demolition method that does not generate vibration or noise. It uses specialized cutting equipment and tools to cut the wall and does not affect the surrounding environment or personnel. The commonly used static cutting tool is a static cutting machine.

[0065] Step 7: Connect the protected building 1 to the basement roof slab 9;

[0066] After the protected building 1 is moved to the designated position, the protected building 1 is temporarily lifted using jacks and the lifting and supporting system 14. The surface concrete of the second threaded sleeve 4 is chipped away, and the second permanent column steel bar 6 is installed on the second threaded sleeve 4.

[0067] Then, using jacks and the lifting and supporting system 14, the protective building 1 and the supporting platform 2 are lowered, and the second permanent column steel bar 6 is inserted into the reserved grouting sleeve 10. Finally, high-pressure grouting is performed in the grouting sleeve 10 to achieve the connection between the protective building 1 and the basement roof slab 9.

[0068] Step 8: Repair and decorate the exterior of protected building 1.

[0069] The construction method for off-site renovation of protected buildings according to this invention involves constructing a support platform at an intermediate off-site location. A first threaded sleeve and a second threaded sleeve are pre-embedded on the support platform. This allows the protected building to be moved to the support platform for temporary storage, and the first permanent reinforcing steel bar can be tied within the first threaded sleeve, thus completing the construction of the permanent structural columns. The superstructure is then constructed on the permanent structural columns, further realizing the construction of the internal frame of the protected building. The protected building, along with the support platform, is then moved back to its original location. A second permanent reinforcing steel bar is installed within the second threaded sleeve and inserted into a grouting sleeve pre-reserved in the basement roof slab. Grouting is then performed in the grouting sleeve, thus connecting the protected building to the basement floor slab. This off-site renovation method utilizes the window of opportunity during the relocation of the protected building to the intermediate off-site location for demolition and renovation work, bringing the renovation process forward and significantly shortening the renovation construction cycle. Furthermore, off-site renovation of protected buildings facilitates the transportation of construction tools and materials, improving construction conditions.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A construction method for protecting off-site building repairs, characterized in that, Includes the following steps: The protected building was moved to an off-site intermediate location, and temporary supports were used to support the protected building, creating a support space below it. Basement construction was carried out at the original site location, and grouting sleeves were reserved on the top slab of the basement. Pier columns are constructed to support the space in which they are supported; A support platform is constructed on the pier support, with the support platform facing the protected building. A first threaded sleeve is pre-embedded on the top surface of the support platform at the position corresponding to the permanent structural column of the protected building, and a second threaded sleeve is pre-embedded on the bottom surface of the support platform at the position corresponding to the first threaded sleeve. The protected building is then transferred to the supporting platform; Install the first permanent column reinforcement in the first threaded sleeve, tie the first permanent column reinforcement to the permanent column structural column reinforcement and pour concrete, and then carry out the construction of the internal frame structure of the protected building. The support platform and the protected building are moved back to the top slab of the basement. The second permanent column reinforcement is installed in the second threaded sleeve and inserted into the grouting sleeve. Grouting is performed on the grouting sleeve to fix the support platform to the top slab of the basement. Construction of exterior facade repair and decoration of the protected building.

2. The construction method for off-site repair of protected buildings as described in claim 1, characterized in that, Before moving the protected building to the location of the off-site intermediate site, a plain concrete cushion layer is laid at the location of the off-site intermediate site, and the foundation slab is constructed on the plain concrete cushion layer.

3. The construction method for off-site repair of protected buildings as described in claim 1, characterized in that, Before moving the protected building to the off-site intermediate location, a jacking and support system was constructed for the protected building; When temporary supports are used to support the protected building, the protected building is lifted and supported onto the temporary supports through the jacking and supporting system.

4. The construction method for off-site repair of protected buildings as described in claim 1, characterized in that, When constructing the pier support in the support space, multiple pier supports are constructed in a matrix arrangement.

5. The construction method for off-site repair of protected buildings as described in claim 4, characterized in that, The support platform includes longitudinally and transversely connected beams. When constructing the support platform on the pier support, the inner side of the connecting beam is made flush with the inner side of the permanent structural column, and the first threaded sleeve is pre-embedded on the top surface of the connecting beam, and the second threaded sleeve is pre-embedded on the bottom surface of the connecting beam.

6. The construction method for off-site repair of protected buildings as described in claim 5, characterized in that, When constructing a support platform on the pier support, the bottom surface of the connection point between the longitudinal connecting beam and the transverse connecting beam is supported on the pier support.

7. The construction method for off-site repair of protected buildings as described in claim 5, characterized in that, When constructing the support platform on the pier support, the connecting beam is positioned below the permanent structural column and the wall of the protected building.

8. The construction method for off-site repair of protected buildings as described in claim 1, characterized in that, After the protective building is transferred to the support platform, and before the first permanent column reinforcement is installed in the first threaded sleeve, the walls of the protective building are reinforced.

9. The construction method for off-site repair of protected buildings as described in claim 1, characterized in that, When embedding the first threaded sleeve on the top surface of the support platform at the location corresponding to the permanent structural column of the protected building, the first threaded sleeve is temporarily sealed with concrete. After the protective building is placed onto the support platform, and before the first permanent column reinforcement is installed inside the first threaded sleeve, the concrete on the surface of the first threaded sleeve is removed.

10. The construction method for off-site repair of protected buildings as described in claim 1, characterized in that, After the basement construction is carried out at the original site location, and after the construction of the internal frame structure of the protected building is carried out, before the support platform and the protected building are moved back to the top slab of the basement, the pier support and the support platform are cut and separated by static cutting.

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