Construction method of high-altitude conversion of building machine of variable cross-section shear wall

Abstract

The application discloses a high-altitude conversion construction method of a building machine of a variable cross-section shear wall, belongs to the technical field of super-high building construction, and is applied to the construction condition that continuous inclined cut corners appear at the corner part of the building structure of the Nth floor and the N+1th floor of a high-rise building and comprises the following steps: S1, pouring N-1th floor concrete; S2, installing a stabilizing column at the corner part of the building structure of the Nth floor; S3, pouring Nth floor concrete; S4, respectively installing temporary beams between the two shear walls close to the corner part of the building structure of the Nth floor and the stabilizing column; and S5, integrally jacking up the building machine, and the inner frame body of the building machine is connected with the temporary beams at the inclined cut corner position of the building structure of the Nth floor. The building machine can adapt to the construction environment of the shear wall variable cross-section in various forms such as the inclined cut corner of the corner part of the building structure, shear wall expansion and shear wall shrinkage, the building machine structure is avoided from being greatly disassembled and reconstructed, the conversion of the building machine on the high-rise building is efficiently and safely realized, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of construction technology for super high-rise buildings, and specifically relates to a high-altitude conversion construction method for building machines using variable cross-section shear walls. Background Technology

[0002] The construction of supertall buildings represents the highest level of architectural technology; their architectural designs represent the aesthetic preferences and design standards of the architectural community, and to a certain extent, reflect societal trends in architectural aesthetics. In the past decade or so, supertall buildings in major Chinese cities have amplified their role as architectural brands, becoming unique calling cards for the cities. Therefore, higher demands have been placed on the diversity and aesthetics of supertall building designs.

[0003] Sky-building machines are a crucial technology in the construction of super high-rise buildings. Developed independently in China, these machines utilize a large, intelligently controlled, modular mechanical platform with advantages such as high construction speed, high safety, high mechanization, and labor savings. Externally, the machine resembles a large, curtain-like platform encircling the building, creating a closed, safe working space where workers construct various modules. The machine connects to the building structure via pre-positioned support points. After one floor is completed, engineers control the machine from a central control center, lifting it to allow workers to continue building upwards.

[0004] To meet design requirements, more and more super high-rise buildings have changes in the cross-section of the shear walls between floors. However, when the cross-section of the shear walls in super high-rise buildings changes, the specifications and dimensions of the building construction machine are fixed, and the changes in the shear wall cross-section often occur during high-altitude construction. This increases the difficulty of modifying the building construction machine, causes certain construction difficulties, delays the construction progress, and can easily lead to safety hazards if not handled properly. Summary of the Invention

[0005] The purpose of this invention is to provide a high-altitude conversion construction method for building construction machines with variable cross-section shear walls, in order to solve the problems that building construction machines are difficult to adapt to the construction scenarios of ultra-high-rise variable cross-section shear walls, the high difficulty of high-altitude conversion, the delay in construction period, and the existence of safety hazards.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-altitude conversion construction method for variable cross-section shear walls, applied to the construction of high-rise buildings where continuous oblique angles appear at the corners of the building structure on the Nth and N+1th floors, includes the following steps:

[0008] S1. Pour N-1 layer of concrete;

[0009] After the concrete of layers S2 and N-1 solidifies, stabilizing columns are installed at the corners of the building structure corresponding to layer N, and the bottom of the stabilizing columns is fixedly connected to the concrete structure of layer N-1.

[0010] S3, pour N layers of concrete;

[0011] After the concrete of S4 and N layers has solidified, temporary beams are installed between the two shear walls and the stabilizing columns near the corner of the N-layer building structure.

[0012] S5. The overall lifting building machine, the inner frame of the building machine is connected to the temporary beam at the oblique angle position of the Nth floor of the building structure;

[0013] S6. Set N+1 layers of stabilizing columns on top of the N-layer stabilizing columns;

[0014] S7. Pour N+1 layers of concrete;

[0015] After the concrete of S8 and N+1 layers has solidified, temporary beams of N+1 layer are installed between the two shear walls near the corner of the N+1 layer building structure and the N+1 layer stabilizing column, respectively.

[0016] S9. Carry out subsequent building structure construction. When the building machine corresponds to the N+1 floor building structure, the inner frame 1 is connected to the N+1 floor temporary beam at the oblique angle position of the N+1 floor building structure.

[0017] S10. After the overall frame construction is completed, the building machine, stabilizing columns and temporary beams are removed, and the oblique angle positions are sealed.

[0018] Furthermore, when the oblique angle of the N+1 floor of the building structure is relatively inward relative to the N floor, that is, when the upper and lower shear walls are stepped, step S6 also includes: setting stabilizing columns on the top surface of the two shear walls near the corner of the N floor building structure and staggered from the N+1 floor shear wall, the stabilizing columns at the top of the N floor shear wall are used for supporting the connection of the temporary beams of the N+1 floor.

[0019] Furthermore, a first embedded part is set at the bottom of the stable column corresponding to the Nth floor of the building structure; a second embedded part is set on the side of the shear wall corresponding to the temporary beam.

[0020] Furthermore, in step S10, the sealing construction at the oblique angle position involves setting up a crossbeam or shear wall at the oblique angle position.

[0021] Furthermore, the stabilizing columns are cross-shaped columns, and the temporary beams are box-shaped crossbeams.

[0022] Furthermore, when the width of the shear wall in the M-th floor structure is greater than the width of the shear wall in the M-1 floor structure, the shear wall in the M-1 floor consists of a thickened section and a regular section from top to bottom, and includes the following construction steps:

[0023] A1. When installing the building construction machine, reserve space for thickening the shear wall of the Mth floor when laying out the internal frame and external hanging frame;

[0024] Construction of shear walls on floors A2 and M-1;

[0025] A21. Install the formwork, with the top of the formwork flush with the top of the regular section of the shear wall on floor M-1 and the bottom extending to the shear wall on floor M-2.

[0026] A22. Install the formwork for the thickened section of the shear wall corresponding to floor M-1;

[0027] A23. Cast the shear wall of floor M-1;

[0028] After the shear walls of floors A3 and M-1 have solidified, the loose formwork and the whole formwork are removed, and then the whole formwork is hoisted to floor M.

[0029] A4. Install the formwork for the corresponding M-story shear wall and pour the M-story shear wall.

[0030] After the shear walls of layers A5 and M have solidified, subsequent building construction will continue.

[0031] Furthermore, the thickness of the thickened section of the shear wall in the M-1 layer is the same as the thickness of the shear wall in the M layer, and the thickness of the regular section is the same as the thickness of the shear wall in the M-2 layer.

[0032] Furthermore, in step A3, when it is difficult to hoist the entire formwork upward due to the thickening of the shear wall, the walers at the interference positions on the outside of the entire formwork are removed, and the walers are reinstalled after the entire formwork is installed.

[0033] Furthermore, when the shear walls of the P-th floor building structure contract inward, the following steps are included:

[0034] B1. When installing the building construction machine, the formwork opposite the shear wall adjacent to the inward-shrinking shear wall is made up of the main formwork and the side formwork. The width of the side formwork is adapted to the inward-shrinking dimension of the adjacent shear wall.

[0035] After the concrete of the shear wall on floors B2 and P-1 has solidified, the entire formwork is removed from floor P-1, and the side formwork is dismantled. Then the main formwork is lifted up to floor P for installation and fixation.

[0036] B3. Cast the P-layer shear wall;

[0037] After the shear walls of B4 and P layers solidify, the entire structure is lifted by the building machine to continue pouring the shear walls of P+1 layers.

[0038] B5. Repeat step B4. When the bottom of the external bracket is higher than the top of the P-1 floor, move the external bracket inward and continue the subsequent building construction.

[0039] Furthermore, the top of the external bracket is bolted to the top platform.

[0040] The present invention has the following beneficial effects:

[0041] 1. The present invention provides a high-altitude conversion construction method for building construction machines with variable cross-section shear walls, which enables the building construction machine to adapt to various construction environments with variable cross-section shear walls, such as corners of building structures being set at beveled angles, shear wall widening, and shear wall inward reduction. This avoids large-scale demolition and modification of the building construction machine structure, and achieves efficient and safe conversion of the building construction machine on high-rise buildings, thereby improving construction efficiency.

[0042] 2. The present invention provides a high-altitude conversion construction method for building construction machines using variable cross-section shear walls. Construction is carried out in sections at the oblique angle position. First, the shear wall in the conventional direction is poured, and stabilizing columns and temporary beams are set to provide attachment points for the building construction machine without changing the size of the building construction machine. After the overall frame construction is completed, the oblique position at the oblique angle is supplemented by construction, and additional shear walls or structural beams are made. The overall construction is simple and quick, and can efficiently adapt to oblique angle building structures in different situations.

[0043] 3. The present invention provides a high-altitude conversion construction method for building construction of variable cross-section shear walls. The shear wall of the next layer of the thickened shear wall is divided into a thickened section and a regular section. The whole formwork is sunk and the loose formwork is assembled separately for the corresponding thickened section to achieve efficient transition of the variable cross-section position. The whole formwork can be used for the shear wall pouring of the whole building structure. The installation is simple and quick.

[0044] 4. The present invention provides a high-altitude conversion construction method for building construction of variable cross-section shear walls. When the shear wall is retracted, the adjacent whole formwork is divided into main formwork and side formwork. The side formwork is adapted to the retraction size. Before the cross-section is changed, the main formwork and the side formwork are assembled as a whole and used together for the pouring of the shear wall. After the cross-section is changed, the side formwork is disassembled and the main formwork is used as the pouring formwork alone, which facilitates the closing of the formwork and improves the formwork installation efficiency. Attached Figure Description

[0045] Figure 1 This is a schematic diagram illustrating the application state of the building construction machine involved in this invention;

[0046] Figure 2 This is a schematic diagram of the installation of the stabilizing column and temporary beam in Embodiment 1 of the present invention;

[0047] Figure 3 For the present invention Figure 2 Top view;

[0048] Figure 4 This is a schematic diagram of the installation of the stabilizing column and temporary beam in Embodiment 2 of the present invention;

[0049] Figure 5 For the present invention Figure 4 Top view;

[0050] Figure 6 This is a schematic diagram of the installation of the stabilizing column and temporary beam in Embodiment 3 of the present invention;

[0051] Figure 7 This is a schematic diagram of the formwork for the M-1 layer shear wall in Embodiment 4 of the present invention.

[0052] In the diagram: 1-Inner frame, 2-Top platform, 3-External hanging frame, 4-Complete template. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Example 1:

[0055] like Figure 1 As shown, this invention provides a high-altitude conversion construction method for a variable cross-section shear wall using a building construction machine. The building construction machine includes an inner frame 1, a top platform 2, an outer hanging frame 3, a formwork 4, and a climbing system. The inner frame 1 is installed inside the building structure and connected to it. The top platform 2 is located on top of the outer hanging frame 3, with its ends extending to the outside of the building structure. The outer frame is located on the outside of the building structure, with its top connected to the top platform 2 and its sides connected to the building structure. The formwork 4 is installed at the location of the concrete wall to be poured in the building structure and connected to the top platform 2. The formwork 4 is reinforced with walers on its outside, and its dimensions are adapted to the dimensions of the shear wall. The climbing system is installed on the building structure and connected to the inner frame 1 for overall lifting control. The climbing system is preferably a hydraulic system.

[0056] like Figure 2 , 3 As shown, in a high-rise building, when a beveled angle appears at the corner of the Nth floor structure, i.e., when a shear wall has a beveled angle, a high-altitude conversion construction method for a variable cross-section shear wall is described, including the following steps:

[0057] S1. After the building construction machine is installed in place, the first embedded part is set at the corner of the building structure at the oblique angle position corresponding to the N-1 floor, and then the N-1 floor concrete is poured.

[0058] After the concrete of layers S2 and N-1 has solidified, a stabilizing column is set on the first embedded part of layer N-1, corresponding to layer N, and the bottom of the stabilizing column is fixed to the first embedded part to achieve connection with the building structure.

[0059] S3. Install the second embedded part on the top of the two shear walls near the corner of the N-story building structure, and then pour the N-story concrete.

[0060] After the concrete of layers S4 and N solidifies, a temporary beam is installed between the second embedded part and the stabilizing column. The temporary beam is set horizontally, and its two ends are fixed to the second embedded part and the stabilizing column, respectively. The two stabilizing columns extend along the directions of the two shear walls and intersect with the stabilizing column.

[0061] S5. The overall lifting building machine is used for the construction of the building structure of subsequent floors. The inner frame 1 of the building machine is connected to the temporary beam at the oblique angle position of the Nth floor of the building structure. The temporary beam provides an attachment point for the inner frame 1.

[0062] S6. After the overall frame construction of the building structure is completed, the building machine, stabilizing columns and temporary beams are removed, and the oblique corner positions are sealed. Horizontal beams or shear walls can be set at the oblique corner positions.

[0063] The stabilizing columns are cross-shaped columns, and the temporary beams are box-shaped crossbeams.

[0064] Example 2:

[0065] like Figure 1 As shown, this invention provides a high-altitude conversion construction method for a variable cross-section shear wall using a building construction machine. The building construction machine includes an inner frame 1, a top platform 2, an outer hanging frame 3, a formwork 4, and a climbing system. The inner frame 1 is installed inside the building structure and connected to it. The top platform 2 is located on top of the outer hanging frame 3, with its ends extending to the outside of the building structure. The outer frame is located on the outside of the building structure, with its top connected to the top platform 2 and its sides connected to the building structure. The formwork 4 is installed at the location of the concrete wall to be poured in the building structure and connected to the top platform 2. The formwork 4 is reinforced with walers on its outside, and its dimensions are adapted to the dimensions of the shear wall. The climbing system is installed on the building structure and connected to the inner frame 1 for overall lifting control. The climbing system is preferably a hydraulic system.

[0066] like Figure 4 , 5 As shown, when the corners of the N+1 and N-story building structures are continuously set as beveled angles, and the N+1 story is relatively recessed from the N-story, i.e., the upper and lower shear walls are stepped, a high-altitude conversion construction method for variable cross-section shear walls includes the following steps:

[0067] S1. After the building machine is installed in place, the first embedded part is set at the corner of the building structure corresponding to the N-1 floor, and then the N-1 floor concrete is poured.

[0068] After the concrete of layers S2 and N-1 has solidified, a stabilizing column is set on the first embedded part of layer N-1, corresponding to layer N, and the bottom of the stabilizing column is fixed to the first embedded part to achieve connection with the building structure.

[0069] S3. Set a second embedded part on the top of the two shear walls near the corner of the N-story building structure, and set a first embedded part on the top surface of the two shear walls near the corner of the N-story building structure and the shear wall staggered at the corner of the N+1 floor.

[0070] After the concrete of S4 and N layers has solidified, a temporary beam is installed between the second embedded part and the stabilizing column corresponding to the N layer. The temporary beam is set horizontally and its two ends are fixedly connected to the second embedded part and the stabilizing column, respectively.

[0071] S5. The overall lifting building machine, the inner frame 1 of the building machine is connected to the temporary beam at the oblique angle position of the Nth floor of the building structure, and the temporary beam provides the attachment point for the inner frame 1;

[0072] S6. On the first embedded part of the N-story shear wall, a stabilizing column is set at the top of the N-story stabilizing column corresponding to the N+1-story level.

[0073] S7. Install the second embedded part on the top of the two shear walls near the corner of the N+1 floor building structure, and then pour the N+1 floor of concrete.

[0074] After the concrete of S8 and N+1 layers has solidified, a temporary beam is installed between the second embedded part of the N+1 layer and the N+1 layer stabilizing column located at the corner of the building structure. The N+1 layer stabilizing column located on the shear wall supports the temporary beam.

[0075] S9. Carry out subsequent building structure construction. During the subsequent building structure construction, when the building machine corresponds to the N+1 floor building structure, the inner frame 1 of the building machine is connected to the temporary beam at the oblique angle position of the N+1 floor of the building structure, and the temporary beam provides an attachment point for the inner frame 1.

[0076] S10. After the overall frame construction of the building structure is completed, the building machine, stabilizing columns and temporary beams are removed, and the oblique corner positions are sealed. Horizontal beams or shear walls can be set at the oblique corner positions.

[0077] Example 3:

[0078] like Figure 1As shown, this invention provides a high-altitude conversion construction method for a variable cross-section shear wall using a building construction machine. The building construction machine includes an inner frame 1, a top platform 2, an outer hanging frame 3, a formwork 4, and a climbing system. The inner frame 1 is installed inside the building structure and connected to it. The top platform 2 is located on top of the outer hanging frame 3, with its ends extending to the outside of the building structure. The outer frame is located on the outside of the building structure, with its top connected to the top platform 2 and its sides connected to the building structure. The formwork 4 is installed at the location of the concrete wall to be poured in the building structure and connected to the top platform 2. The formwork 4 is reinforced with walers on its outside, and its dimensions are adapted to the dimensions of the shear wall. The climbing system is installed on the building structure and connected to the inner frame 1 for overall lifting control. The climbing system is preferably a hydraulic system.

[0079] like Figure 6 As shown, when the corners of the N+1 and N-story building structures are continuously set as beveled angles, and the shear walls of the N+1 and N-story buildings are positioned in the same location (i.e., the outer edges of the upper and lower shear walls are flush), a high-altitude conversion construction method for variable cross-section shear walls in building construction includes the following steps:

[0080] S1. After the building machine is installed in place, the first embedded part is set at the corner of the building structure corresponding to the N-1 floor, and then the N-1 floor concrete is poured.

[0081] After the concrete of layers S2 and N-1 has solidified, a stabilizing column is set on the first embedded part of layer N-1, corresponding to layer N, and the bottom of the stabilizing column is fixed to the first embedded part to achieve connection with the building structure.

[0082] S3. Install the second embedded part on the top of the two shear walls near the corner of the N-story building structure, and then pour the N-story concrete.

[0083] After the concrete of layers S4 and N solidifies, a temporary beam is installed between the second embedded part and the stabilizing column. The temporary beam is set horizontally and its two ends are fixedly connected to the second embedded part and the stabilizing column, respectively.

[0084] S5. The overall lifting building machine: The inner frame 1 of the building machine is connected to a temporary beam at the corner of the Nth floor of the building structure, and the temporary beam provides an attachment point for the inner frame 1.

[0085] S6. Stabilizing columns are installed at the corner of the building structure corresponding to the N+1 floor, and the stabilizing columns are fixedly connected to the top of the stabilizing columns on the N floor.

[0086] S7. Install the second embedded parts on the top of the two shear wall sides at the corner of the N+1 floor building structure, and then pour the N+1 floor concrete.

[0087] After the concrete of the shear walls of S8 and N layers has solidified, a temporary beam is installed between the second embedded part of the N+1 layer and the stable column of the N+1 layer.

[0088] S9. Carry out subsequent building structure construction. During the subsequent building structure construction, when the building machine corresponds to the N+1 floor building structure, the inner frame 1 of the building machine is connected to the temporary beam at the oblique angle position of the N+1 floor of the building structure, and the temporary beam provides an attachment point for the inner frame 1.

[0089] S10. After the overall frame construction of the building structure is completed, the building machine, stabilizing columns and temporary beams are removed, and the oblique corner positions are sealed. Horizontal beams or shear walls can be set at the oblique corner positions.

[0090] Example 4:

[0091] like Figure 1 As shown, this invention provides a high-altitude conversion construction method for a variable cross-section shear wall using a building construction machine. The building construction machine includes an inner frame 1, a top platform 2, an outer hanging frame 3, a formwork 4, and a climbing system. The inner frame 1 is installed inside the building structure and connected to it. The top platform 2 is located on top of the outer hanging frame 3, with its ends extending to the outside of the building structure. The outer frame is located on the outside of the building structure, with its top connected to the top platform 2 and its sides connected to the building structure. The formwork 4 is installed at the location of the concrete wall to be poured in the building structure and connected to the top platform 2. The formwork 4 is reinforced with walers on its outside, and its dimensions are adapted to the dimensions of the shear wall. The climbing system is installed on the building structure and connected to the inner frame 1 for overall lifting control. The climbing system is preferably a hydraulic system.

[0092] In high-rise buildings, when the width of the shear wall on the M-th floor is greater than the width of the shear wall on the M-1-th floor, the shear wall is thickened. The shear wall on the M-1-th floor consists of a thickened section and a regular section from top to bottom. The thickness of the thickened section is the same as the thickness of the shear wall on the M-th floor, and the thickness of the regular section is the same as the thickness of the shear wall on the M-2-th floor. In this case, a high-altitude conversion construction method for a variable cross-section shear wall includes the following steps:

[0093] A1. When installing the building construction machine, when laying out the inner frame 1 and the outer hanging frame 3, reserve space for thickening the shear wall of the M floor;

[0094] Construction of shear walls on floors A2 and M-1;

[0095] A21. After the building construction machine is lifted into place, install the whole formwork 4. The top of the whole formwork 4 is flush with the top of the conventional section of the shear wall on the M-1 floor, and the bottom extends to the shear wall on the M-2 floor.

[0096] A22, such as Figure 7 As shown, loose formwork is installed on both sides of the thickened section of the shear wall corresponding to the M-1 floor. A horizontal formwork is set at the bottom of the thickened section that exceeds the regular section. The horizontal formwork abuts against the whole formwork 4, and its top surface contacts the bottom surface of the thickened section.

[0097] A23. Cast the shear wall of floor M-1;

[0098] After the shear walls of floors A3 and M-1 have solidified, remove the loose formwork and the whole formwork 4, and then hoist the whole formwork 4 to floor M.

[0099] A4. Install the complete formwork 4 corresponding to the shear wall of the M layer, and pour the shear wall of the M layer;

[0100] After the shear walls of layers A5 and M have solidified, subsequent building construction will continue.

[0101] Preferably, the height of the thickened section is 1m, and the entire template 4 is correspondingly offset downwards by 1m.

[0102] When it becomes difficult to hoist the entire formwork 4 upwards due to the thickening of the shear wall, remove the walers at the interference positions on the outside of the entire formwork 4. After the entire formwork 4 is installed, reinstall the walers for reinforcement.

[0103] Example 5:

[0104] like Figure 1 As shown, this invention provides a high-altitude conversion construction method for a variable cross-section shear wall using a building construction machine. The building construction machine includes an inner frame 1, a top platform 2, an outer hanging frame 3, a formwork 4, and a climbing system. The inner frame 1 is installed inside the building structure and connected to it. The top platform 2 is located on top of the outer hanging frame 3, with its ends extending to the outside of the building structure. The outer frame is located on the outside of the building structure, with its top connected to the top platform 2 and its sides connected to the building structure. The formwork 4 is installed at the location of the concrete wall to be poured in the building structure and connected to the top platform 2. The formwork 4 is reinforced with walers on its outside, and its dimensions are adapted to the dimensions of the shear wall. The climbing system is installed on the building structure and connected to the inner frame 1 for overall lifting control. The climbing system is preferably a hydraulic system.

[0105] In high-rise buildings, when the shear walls of the P-th floor structure contract inward, i.e., the shear wall thickness decreases, a high-altitude conversion construction method for variable cross-section shear walls is employed, comprising the following steps:

[0106] B1. Install the building construction machine, connect the top of the external frame 3 to the top platform 2 with bolts, and the whole formwork 4 opposite to the shear wall adjacent to the inward shear wall is composed of the main formwork and the side formwork spliced ​​together. The width of the side formwork is adapted to the inward dimension of the adjacent shear wall.

[0107] After the concrete of the shear wall on B2 and P-1 floors has solidified, the entire formwork 4 is removed from the P-1 floor, and the side formwork is dismantled. Then, the main formwork is lifted up to the P floor for installation and fixation.

[0108] B3. Cast the P-layer shear wall;

[0109] After the shear walls of B4 and P layers solidify, the entire structure is lifted by the building machine to continue pouring the shear walls of P+1 layers;

[0110] B5. Repeat step B4. When the bottom of the external bracket 3 is higher than the top of the P-1 floor, move the external bracket 3 inward to facilitate the connection and operation of the external bracket 3 with the contracted shear wall, and continue the subsequent building construction.

[0111] The top of the external bracket 3 is connected to the top platform 2 by bolts. The position of the external bracket 3 can be adjusted by adjusting the connection position of the bolts.

[0112] In step B1, if the shear wall on the north side shrinks inward by 100mm, the shear wall formwork 4 on the east and west sides is divided into main formwork and side formwork. The side formwork is 100mm wide. When construction reaches the shrinkage layer, the side formwork is removed to facilitate the formwork closure construction.

[0113] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method of a variable cross-section shear wall by a building machine high-altitude conversion construction, characterized in that, The application is applied to the construction of continuous bevel corner of high-rise building structure at Nth and N+1th floor, including the following steps: S1, pouring N-1th floor concrete; S2, after N-1th floor concrete solidifies, installing a stable column at the corner of the building structure corresponding to Nth floor, and the bottom of the stable column is fixedly connected with N-1th floor concrete structure; S3, pouring Nth floor concrete; S4, after Nth floor concrete solidifies, installing temporary beams between the two shear walls near the corner of Nth floor building structure and the stable column respectively; S5, integrally jacking up the building machine, and connecting the inner frame body (1) of the building machine with the temporary beam at the bevel corner position of the building structure of Nth floor; S6, setting N+1th floor stable column at the top of Nth floor stable column; S7, pouring N+1th floor concrete; S8, after N+1th floor concrete solidifies, installing N+1th floor temporary beams between the two shear walls near the corner of N+1th floor building structure and N+1th floor stable column respectively; S9, carrying out subsequent building structure construction, when the building machine corresponds to N+1th floor building structure, connecting the inner frame body (1) with N+1th floor temporary beam at the bevel corner position of N+1th floor building structure; S10, after the integral frame construction is completed, removing the building machine, stable column and temporary beam, and carrying out plugging construction at the bevel corner position; When the bevel corner of N+1th floor building structure is inlaid relative to Nth floor, that is, the upper and lower shear walls are in ladder type, step S6 further includes: setting stable columns on the top surfaces of the two shear walls near the corner of Nth floor building structure and staggered with N+1th floor shear wall, and the stable columns on the top of Nth floor shear wall are used for supporting and connecting N+1th floor temporary beam; The first embedded part is arranged at the bottom of the stable column corresponding to Nth floor of the building structure, and the second embedded part is arranged at the side of the shear wall corresponding to the temporary beam.

2. The method according to claim 1, wherein the method is characterized by: In step S10, the plugging construction at the bevel corner position is to set a horizontal beam or a shear wall at the bevel corner position.

3. The method according to claim 1, wherein the method is characterized by: The stable column is a cross-shaped column, and the temporary beam is a box-shaped horizontal beam.

4. The method according to claim 1, wherein the method is characterized by: When the shear wall width of Mth floor building structure is greater than that of M-1th floor building structure, the M-1th floor shear wall includes thickened sections and conventional sections from top to bottom, and the following construction steps are included: A1, installing the building machine, and reserving the thickened space of Mth floor shear wall when arranging the inner frame body (1) and the outer hanging frame (3); A2, constructing M-1th floor shear wall; A21, installing the whole formwork (4), and the top of the whole formwork (4) is flush with the top of the conventional section of M-1th floor shear wall, and the bottom extends to M-2th floor shear wall; A22, installing the scattered formwork corresponding to the thickened section of M-1th floor shear wall; A23, pouring M-1th floor shear wall; A3, after M-1th floor shear wall solidifies, removing the scattered formwork and the whole formwork (4), and then hoisting the whole formwork (4) to Mth floor; A4, installing the whole formwork (4) corresponding to Mth floor shear wall, and pouring Mth floor shear wall; A5, after Mth floor shear wall solidifies, continuing the subsequent building construction.

5. The method according to claim 4, wherein the method is characterized by: The thickness of the thickened section of M-1th floor shear wall is the same as that of Mth floor shear wall, and the thickness of the conventional section is the same as that of M-2th floor shear wall.

6. The method according to claim 4, wherein the method is characterized by: In step A3, when the whole formwork (4) is difficult to be hoisted upward due to the thickening of the shear wall, the surrounding purlin at the interference position outside the whole formwork (4) is removed, and then the surrounding purlin is reinstalled after the whole formwork (4) is installed.

7. The method according to claim 1, wherein the method is characterized by: The inwardly retracting of the shear walls of the Pth floor building structure comprises the following steps: B1. Installing the building machine, the opposite formwork (4) of the shear wall adjacent to the inwardly retracting shear wall is spliced by a main formwork and an edge formwork, the width of the edge formwork is adapted to the inwardly retracting size of the adjacent shear wall; B2. After the P-1th floor shear wall concrete is solidified, the formwork (4) is removed from the P-1th floor, the edge formwork is removed, and then the main formwork is lifted upward to the Pth floor for installation and fixation; B3. Pouring the Pth floor shear wall; B4. After the Pth floor shear wall is solidified, the building machine is lifted as a whole, and the P+1th floor shear wall is continuously poured; B5. Repeating step B4, when the bottom of the outer hanging frame (3) is higher than the top of the P-1th floor, the outer hanging frame (3) is moved inwardly, and the subsequent building construction is continuously carried out.

8. The method according to claim 7, wherein the method is characterized by: The top of the outer hanging frame (3) and the top platform (2) are bolted.

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