Local dismantling and building method for historical building

Abstract

A local dismantling and building method of a historical building comprises the following steps that a local damaged area of a brick masonry is determined, and temporary reinforcement is carried out according to the situation of the local damaged area; the old bricks in the local damage area of the masonry are dismantled, and a joint is dismantled at the joint of the local damage area and the intact area of the brick masonry; and building back in the local damaged area according to the original state. According to the local dismantling and building method for the historical building, for the historical building with serious local damage, the mode of dismantling the old bricks in the local area is adopted, reinforcement can be conducted during dismantling, the connecting rafts are dismantled, the firmness of connection between the historical building and the old bricks can be well improved, the overall workload is reduced, and the method better conforms to the repairing principle of the historical building.

Description

Technical Field

[0001] The invention relates to the technical field of historical building repair, and in particular to a method for partially dismantling and rebuilding a historical building. Background Art

[0002] The damage in historical buildings generally includes local damage, which does not require demolition and reconstruction, and only requires partial repairs based on the original appearance. There are also some local damages that are relatively serious, such as cracks, dislocations and partial collapses, and overall damage. For some local damages that are serious and overall damage, in many cases, overall reconstruction will be carried out, that is, the original building will not be retained. For some local damages that are relatively serious, this demolition and reconstruction method will lead to an increase in the overall workload and does not conform to the principles of repair. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a method for partial dismantling and rebuilding of historical buildings, which can greatly improve the reliability of the connection with the old brickwork, reduce the overall workload, and be more in line with the renovation principles of historical buildings.

[0004] The present invention provides a method for partially dismantling and rebuilding a historical building, comprising the following steps:

[0005] Identify the local damaged area of ​​the brickwork and perform temporary reinforcement according to the condition of the local damaged area;

[0006] The old bricks in the locally damaged area of ​​the masonry are removed, and the joints are removed at the junction of the locally damaged area and the intact area of ​​the brick masonry;

[0007] Rebuild the local damaged area in accordance with the original state.

[0008] In one embodiment, the step of confirming the local damaged area of ​​the brickwork and performing temporary reinforcement according to the condition of the local damaged area further comprises:

[0009] marking the localized damaged area on said brickwork;

[0010] According to the conditions of the local damaged area, unloading, supporting and top-up methods are selected for temporary reinforcement.

[0011] In one embodiment, the method of removing old bricks in the locally damaged area of ​​the brickwork and removing the joints at the junction of the locally damaged area and the intact area of ​​the brickwork further includes:

[0012] The old bricks in the locally damaged area are removed piece by piece until the intact area of ​​the brickwork is reached;

[0013] Remove the joint at the junction of the locally damaged area and the intact area.

[0014] In one embodiment, the step of re-paving the locally damaged area in its original state further comprises:

[0015] Re-obtain new bricks according to the material, color and size of the brickwork;

[0016] The recovered bricks are laid back into the local damaged area in their original state.

[0017] In one embodiment, the step of retrieving new bricks according to the material, color and size of the brickwork further comprises:

[0018] Determine the condition of the removed bricks, and if the removed old bricks are unusable, replace them with new bricks according to the material, color and size of the masonry;

[0019] In case the removed old bricks are available, the old bricks are cleaned.

[0020] In one embodiment, the dismantling method further comprises:

[0021] If the masonry is damaged by plant roots, the plant roots that have invaded the brick masonry must be completely removed.

[0022] In one embodiment, the masonry method further comprises:

[0023] Add tie bars at weak locations of brick masonry.

[0024] The partial dismantling and rebuilding method of historical buildings provided by the present invention adopts a method of dismantling old bricks in local areas for those with serious local damage, and reinforcement is carried out during the dismantling. In addition, the joints are removed, which can greatly improve the reliability of the connection with the old brickwork body, reduce the overall workload, and be more in line with the repair principles of historical buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic flow chart of the partial dismantling and rebuilding method of a historical building provided by the present invention. DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0031] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0032] See also Figure 1 The method for partial dismantling and rebuilding of a historical building provided by the present invention comprises the following steps:

[0033] S1, confirm the local damaged area of ​​the brickwork and carry out temporary reinforcement according to the situation of the local damaged area.

[0034] It is understandable that the above steps may further include:

[0035] S101, marking localized damaged areas on brickwork.

[0036] It is understandable that the local damaged area may be loose, cracked, severely dislocated, on the verge of partial collapse or has already collapsed. In this case, the damage can no longer be restored to its original state by repair. The above-mentioned method of judging the local damaged area can basically be achieved visually. Of course, some known visual recognition algorithms can also be used to judge the damage results. For some areas that cannot be well judged visually, the rebound method and penetration method can also be used to determine whether the strength of some areas can meet the requirements. Of course, the actual conditions on site can also be combined with thickness gauges, coring machines, vernier calipers, etc. to sample and measure the conditions of some areas.

[0037] S102: According to the situation of the local damaged area, temporary reinforcement is carried out by unloading, supporting and top-up methods.

[0038] It can be known that for the middle area of ​​the damaged area close to the brickwork, the support and top method can be used for reinforcement. The shape and structure of the support and top components can be selected according to the damaged area. For the edge area of ​​the damaged area close to the brickwork, the unloading method can be used, that is, the old bricks on the upper part of the damaged area are also removed.

[0039] S2, remove the old bricks in the locally damaged area of ​​the masonry, and remove the joints at the junction of the locally damaged area and the intact area of ​​the brick masonry.

[0040] It is understandable that the above steps may further include:

[0041] S201, removing old bricks in the local damaged area piece by piece until reaching the intact area of ​​the brickwork.

[0042] It is understandable that the demolition can be done piece by piece from top to bottom. The reason for demolition piece by piece is that the local collapse caused by the demolition of multiple bricks will cause further damage to the old bricks. At the same time, it is also feared that personal injury will be caused. During demolition, the mortar joints around the old bricks to be replaced are removed, and then the severely damaged bricks are removed "piece by piece"; the surrounding debris is cleared, and the inlaid parts of the intact area are moistened and rinsed clean.

[0043] S202, removing the joint at the junction of the local damaged area and the intact area.

[0044] It is understandable that the purpose of removing the joints is to make the old bricks and new bricks overlap more closely, thereby improving the overall repair effect.

[0045] S3, re-build the local damaged area according to the original condition.

[0046] It is understandable that the above steps may further include:

[0047] S301, reacquire new bricks according to the material, color and size of the brickwork.

[0048] The above steps may further include:

[0049] S301a, determining the status of the removed bricks, and in the case where the removed old bricks are unusable, replacing new bricks according to the material, color and size of the masonry.

[0050] It is understandable that for the sake of overall consistency, the material of the brickwork can be the same as the old bricks, and the color and size can be consistent with the old bricks.

[0051] S301b, if the removed old bricks are available, clean up the old bricks.

[0052] It is understandable that cleaning can be to clean the mortar on the old bricks without affecting subsequent use.

[0053] S302, laying the recovered bricks back to the local damaged area in their original state.

[0054] It can be understood that whole bricks can be used for backlaying. It is advisable to choose lime-based or low-alkali masonry mortar. When laying, use a trowel to spread the mortar on the bottom and then lay the wet bricks. The whole bricks to be laid need to match and coordinate with the surrounding bricks, and the mortar joints should also be consistent. The mortar joints should be horizontal and vertical, uniform in thickness, and should be filled with mortar. The thickness of the flat joints is generally 10mm and should not be less than 8mm, and the thickness of the ingot joints is 5-6mm.

[0055] In some embodiments, the dismantling method further comprises:

[0056] If the masonry is damaged by plant roots, the plant roots that have invaded the brick masonry must be completely removed.

[0057] In some embodiments, the method further comprises:

[0058] Add tie bars at weak locations of brick masonry.

[0059] It is understandable that the tie bars may be placed in the new brick area in an embedded manner, thereby improving the overall reliability of the brickwork.

[0060] From the above description, it can be known that the partial dismantling and rebuilding method of historical buildings provided by the present invention adopts the method of dismantling old bricks in local areas for those with serious local damage, and reinforcement will be carried out during the dismantling, and the joints will be removed, which can greatly improve the reliability of the connection with the old brickwork body, reduce the overall workload, and be more in line with the repair principles of historical buildings.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A method for partial dismantling of a historical building, characterized in that: The steps include: Identify the local damaged area of ​​the brickwork and perform temporary reinforcement according to the condition of the local damaged area; The old bricks in the locally damaged area of ​​the masonry are removed, and the joints are removed at the junction of the locally damaged area and the intact area of ​​the brick masonry; Rebuild the local damaged area in accordance with the original state.

2. The method for partial dismantling and rebuilding of a historical building as claimed in claim 1, characterized in that: The step of confirming the local damaged area of ​​the brickwork and performing temporary reinforcement according to the condition of the local damaged area further comprises: marking the localized damaged area on said brickwork; According to the conditions of the local damaged area, unloading, supporting and top-up methods are selected for temporary reinforcement.

3. The method for partial dismantling of a historical building as claimed in claim 2, characterized in that: The method of removing old bricks in the locally damaged area of ​​the brickwork and removing the joints at the junction of the locally damaged area and the intact area of ​​the brickwork further includes: The old bricks in the locally damaged area are removed piece by piece until the intact area of ​​the brickwork is reached; Remove the joint at the junction of the locally damaged area and the intact area.

4. The method for partial dismantling and rebuilding of a historical building as claimed in claim 1, characterized in that: The step of restoring the locally damaged area in accordance with the original state further comprises: Re-obtain new bricks according to the material, color and size of the brickwork; The recovered bricks are laid back into the local damaged area in their original state.

5. The method for partial dismantling of a historical building as claimed in claim 4, characterized in that: The method of re-obtaining new bricks according to the material, color and size of the brickwork further includes: Determine the condition of the removed bricks, and if the removed old bricks are unusable, replace them with new bricks according to the material, color and size of the masonry; In case the removed old bricks are available, the old bricks are cleaned.

6. The method for partial dismantling and rebuilding of a historical building as claimed in claim 1, characterized in that: The dismantling method also includes: If the masonry is damaged by plant roots, the plant roots that have invaded the brick masonry must be completely removed.

7. The method for partial dismantling and rebuilding of a historical building as claimed in claim 1, characterized in that: The building method also includes: Add tie bars at weak locations of brick masonry.

Images