Construction method for newly adding ground ring beam for transforming old wall

Abstract

The invention relates to a construction method for newly adding a ground ring beam for transforming an old wall. The construction method comprises the following steps that S1, a supporting position is determined and marked; s2, manufacturing a supporting device; s3, chiseling off the wall body at the supporting position; s4, adjusting the pressure value of the jack; s5, chiseling away the remaining wall between the supporting devices; and S6, the newly-added ground ring beam is poured. After the upper wall body is supported through the supporting devices, the newly-added ground ring beam is integrally poured, segmented construction is not needed, the continuity of the newly-added ground ring beam can be guaranteed, and therefore the construction quality is guaranteed, and the construction period is shortened; and the pressure value of the jack is adjusted to the load value to be borne, so that the supporting stability can be ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and particularly relates to a construction method for renovating an old wall and adding a new ground ring beam. Background Art

[0002] With the development of social economy and the continuous expansion of urban scale, the use functions of some existing buildings that have been built for a long time can no longer meet the current needs. Although these buildings are old, their architectural style and facades highlight the local cultural history and architectural development level and have high artistic value. Therefore, they need to be preserved and their walls reinforced. The commonly used reinforcement method for walls is to add new ground ring beams. At present, the new ground ring beams are usually constructed in sections, that is, the lower part of the wall where the ground ring beams are needed are dismantled and the ground ring beams are cast in sections. This method has a long construction period and the construction quality is not easy to guarantee. Summary of the invention

[0003] The main purpose of the present invention is to propose a construction method for renovating an old wall and adding a new ground ring beam, which can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A construction method for renovating an old wall and adding a new ground ring beam comprises the following steps:

[0006] S1. Determine the support position and mark it: Calculate the upper wall load according to the construction drawings, and then plan the position and quantity of the support devices at reasonable intervals in the area of ​​the ring beam at the bottom of the wall according to the upper wall load, and mark them;

[0007] S2. Make a supporting device: The supporting device includes a top plate and a bottom plate, both sides of the top plate and the bottom plate are connected by support rods, a jack is arranged between the top plate and the bottom plate, and a pressure sensor is fixed on the top of the output shaft of the jack;

[0008] S3, chiseling away the wall at the support position: chiseling away the wall at the marked support position, and after chiseling away the wall, inserting a support device to support the upper wall;

[0009] S4. Adjust the pressure value of the jack: calculate the force of each supporting device according to the upper wall load, support the top plate with the jack, and adjust the pressure value of the jack to the load value that should be borne;

[0010] S5. Chisel out the remaining wall between the supporting devices: After all supporting devices have completed temporary support, chisel out the remaining wall in the newly added ring beam area, and only support the upper wall by the supporting devices;

[0011] S6. Casting of newly added ground ring beam: Tie steel bars in the newly added ground ring beam area, support formwork, and cast the newly added ground ring beam as a whole.

[0012] Preferably, in step S2, the top plate and the bottom plate are steel plates, the steel plates adopt a square size of 350mm×350mm×15mm, and the support rods are steel bars, preferably 4 or more steel bars.

[0013] Preferably, in step S2, the chiseling range is determined according to the size of the supporting device.

[0014] The present invention provides a construction method for renovating an old wall and adding a new ground ring beam, which has the following beneficial effects:

[0015] After the upper wall is supported by the supporting device, the newly added ground ring beam is integrally cast without segmented construction, thereby ensuring the continuity of the newly added ground ring beam, thereby ensuring the construction quality and shortening the construction period. During construction, the force of each supporting device is calculated according to the load of the upper wall, and the pressure value of the jack is adjusted to the load value that should be borne, thereby ensuring the stability of the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a construction schematic diagram of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the supporting device of the present invention.

[0018] In the figure: 1, top plate; 2, bottom plate; 3, support rod; 4, jack; 5, pressure sensor; 100, upper wall; 200, newly added ground ring beam area. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments 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.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] Reference Figure 1-2 A construction method for renovating an old wall and adding a new ground ring beam comprises the following steps:

[0025] S1. Determine the support position and mark it: Calculate the load of the upper wall 100 according to the construction drawings, and then according to the load of the upper wall 100, add a ring beam area 200 at the bottom of the wall to plan the position and number of the support devices at reasonable intervals and mark them;

[0026] Because the ground ring beam is arranged at the bottom of the wall, the newly added ground ring beam needs to bear the load of the upper wall 100, and a certain method must be adopted to support the upper wall 100 to ensure the effective transfer of the upper load during the construction of the newly added ground ring beam;

[0027] The wall load can be calculated according to the bulk density of the specific structural materials of the wall. For example, for a brick wall, it is 18 kN per square meter * 0.24 brick load + plaster surface mortar bulk density 17 kN per square meter * 0.02 plaster layer load. Calculate the load per square meter, and then calculate the area on the beam.

[0028] S2. Make a supporting device: The supporting device includes a top plate 1 and a bottom plate 2. Both sides of the top plate 1 and the bottom plate 2 are connected by a supporting rod 3. A jack 4 is arranged between the top plate 1 and the bottom plate 2. A pressure sensor 5 is fixed to the top of the output shaft of the jack 4.

[0029] The top plate 1 and the bottom plate 2 are steel plates with a square size of 350mm×350mm×15mm. The support rods 3 are steel bars, and 4 or more steel bars are preferably used. The pressure sensor 5 can be used to detect the supporting force of the jack 4 on the top plate 1.

[0030] S3, chiseling away the wall at the support position: chiseling away the wall at the marked support position, and after chiseling away the wall, inserting a support device to support the upper wall 100, and the chiseling away range is determined according to the size of the support device;

[0031] S4, adjusting the pressure value of the jack 4: calculating the force of each supporting device according to the load of the upper wall 100, supporting the top plate 1 through the jack 4, and adjusting the pressure value of the jack 4 to the load value that should be borne;

[0032] S5. Chisel out the remaining wall between the supporting devices: After all supporting devices have completed temporary support, chisel out the remaining wall in the newly added ring beam area 200, and only support the upper wall 100 by the supporting devices;

[0033] S6. Casting of newly added ground ring beam: tie steel bars within 200 of the newly added ground ring beam area, support formwork, and cast the newly added ground ring beam as a whole.

[0034] After the present invention supports the upper wall 100 through the supporting device, the newly added ground ring beam is cast as a whole without segmented construction, which can ensure the continuity of the newly added ground ring beam, thereby ensuring the construction quality and shortening the construction period. During construction, the force of each supporting device is calculated according to the load of the upper wall 100, and the pressure value of the jack 4 is adjusted to the load value that should be borne, which can ensure the stability of the support.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction method for renovating an old wall and adding a new ground ring beam, It is characterized in that The following steps are involved: S1. Determine the support position and mark it: Calculate the upper wall load according to the construction drawings, and then plan the position and quantity of the support devices at reasonable intervals in the area of ​​the ring beam at the bottom of the wall according to the upper wall load, and mark them; S2. Make a supporting device: The supporting device includes a top plate and a bottom plate, both sides of the top plate and the bottom plate are connected by support rods, a jack is arranged between the top plate and the bottom plate, and a pressure sensor is fixed on the top of the output shaft of the jack; S3, chiseling away the wall at the support position: chiseling away the wall at the marked support position, and after chiseling away the wall, inserting a support device to support the upper wall; S4. Adjust the pressure value of the jack: calculate the force of each supporting device according to the upper wall load, support the top plate with the jack, and adjust the pressure value of the jack to the load value that should be borne; S5. Chisel out the remaining wall between the supporting devices: After all supporting devices have completed temporary support, chisel out the remaining wall in the newly added ring beam area, and only support the upper wall by the supporting devices; S6. Casting of newly added ground ring beam: Tie steel bars in the newly added ground ring beam area, support formwork, and cast the newly added ground ring beam as a whole.

2. A construction method for renovating an old wall and adding a new ring beam according to claim 1, Features: In step S2, the top plate and the bottom plate are steel plates with a square size of 350 mm × 350 mm × 15 mm. The support rods are steel bars, and 4 or more steel bars are preferably used.

3. A construction method for renovating an old wall and adding a new ring beam according to claim 1, Features: In step S2, the chiseling range is determined according to the size of the supporting device.

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