One-time forming assembly for cooperation of secondary structure and main body structure of elevator shaft and construction method
By using standardized formwork with hidden wall tensioning and optimizing construction sequence, the problem of low construction efficiency of the secondary structure and main structure of the elevator shaft is solved, and the rapid and efficient forming and quality assurance of the shaft is achieved.
Patent Information
- Application Number
- CN202510610624.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2045-05-13
AI Technical Summary
The construction of the secondary structure and main structure of the existing elevator shaft has problems such as low construction efficiency, difficult quality, high technical requirements for workers and long construction time, especially in the installation and disassembly of the formwork of the ring beam and structural column.
Standardized embedded formwork with hidden wall tensioning is adopted to optimize its butt combination structure and hook and fixing components. By optimizing the construction sequence, the shaft wall is typed and deepened in advance, and the structural column and the main structure are poured at the same time. The longitudinal ribs and stirrups of the structural column are tied to form a support frame, and fixed with iron hooks, retractable wire ropes and adjustment fixing knobs.
It realizes rapid and efficient construction of elevator shafts, improves construction efficiency and processing accuracy, reduces the cost and working hours of reinforcement, ensures the accuracy of wall reinforcement positions and the quality of concrete pouring, and simplifies the installation and disassembly of formwork.
Smart Images

Figure CN120443822A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of elevator shaft brickwork structure construction, and in particular relates to an elevator shaft secondary structure coordinated with a main structure one-time forming component and a construction method. Background Art
[0002] With the development of the economy and society, high-rise buildings are gradually increasing, people's demand for convenient travel is also increasing, the number of buildings that need to be equipped with elevators is increasing, and there are new requirements for the safety and speed of elevator shafts.
[0003] The elevator shaft structure is mainly composed of shear walls, brick masonry, structural columns, and ring beams. The construction of ring beams and structural columns is generally carried out after the main structure is cast and the brick wall under the ring beam is completed. The ring beams, structural columns and the main structure are connected by anchoring, and the quality of anchoring cannot be guaranteed, and the construction time is long. At the same time, the secondary casting of ring beams and structural columns requires the re-installation of structural column formwork. The formwork feed port is narrow, making manual pouring of concrete difficult, and the quality of concrete construction cannot be guaranteed. The use of formwork for construction has high technical requirements for workers, low construction efficiency, and affects the construction period. In addition, the formwork needs to be removed after the construction of the structural columns and ring beams is completed, which can easily damage the secondary structure concrete and extend the construction time.
[0004] For example, the Chinese patent application with application number 202311716691.0 discloses a formwork system and a construction method for synchronous construction of the secondary structure of an elevator shaft and the main body; the formwork system includes a structural column outer layer structure, a ring beam outer layer structure and a ring beam support structure; the structural column outer layer structure includes a plurality of structural column steel plates, and the structural column outer layer structure is used to form a whole with the structural column concrete; the structural column steel plate includes a tooth joint steel plate, which is arranged on the side where the structural column is connected to the brick masonry, and the tooth joint steel plate is provided with a plurality of horizontal tie bar reserved holes, and the horizontal tie bar reserved holes are reserved with structural column horizontal tie bars, and the structural column horizontal tie bars are used for subsequent binding with the brick masonry steel bars; the ring beam support structure includes a plurality of ring beam formwork frames, and the plurality of ring beam formwork frames support the ring beam outer layer structure, and the ring beam outer layer structure is used to form a whole with the ring beam concrete; the ring beam outer layer structure is located between the structural column outer layer structure and the main structure formwork assembly, or between two structural column outer layer structures. In actual use, this solution requires that the horizontal tie bars of the structural columns be inserted into the reserved holes for the horizontal tie bars on the structural column steel plates in sequence, and a lap length be reserved to construct the ring beam reinforcement. When one side of the ring beam is the main structure, the ring beam reinforcement is tied and fixed to the main structure reinforcement to ensure that the ring beam reinforcement is anchored into the main structure. Such operation poses problems for the formwork installation and disassembly process before and after pouring concrete, is inconvenient to operate on site, and the waiting time for the entire process is long, requiring further improvement in construction efficiency.
[0005] Therefore, it is necessary to research and develop one-time forming components and construction methods of the secondary structure of the elevator shaft in coordination with the main structure to solve the above problems. Summary of the Invention
[0006] In order to solve the above technical problems, the present invention provides a one-time forming component and construction method for the secondary structure of the elevator shaft in coordination with the main structure. By optimizing the construction sequence, adjusting the construction deployment, and carrying out secondary deepening in advance, it can achieve efficient construction of the elevator shaft while ensuring quality, thereby improving construction efficiency and reducing costs.
[0007] The present invention provides the following technical solutions: The secondary structure of the elevator shaft cooperates with the main structure to form a one-time component, including structural column longitudinal reinforcement and structural column stirrups, which are tied together by steel bars to form a structural column support frame. A first embedded template and a second embedded template are provided on the outside of the structural column support frame. Wall reinforcement is passed through the first embedded template and the second embedded template. The outer wall of the first embedded template is integrally provided with an insertion strip, and the outer wall of the second embedded template is integrally provided with a fastening opening. The first embedded template is affixed to the adjacent side of the second embedded template and is connected to the fastening opening through the insertion strip. The first embedded formwork and the second embedded formwork are each provided with a storage groove on the side away from the structural column support frame for accommodating wall reinforcement. The top of the first embedded formwork and the second embedded formwork are each provided with an iron hook and a retractable steel wire rope, and the iron hook is fixed to the top of the retractable steel wire rope. Adjustment and fixing knobs are each installed on the side walls of the first embedded formwork and the second embedded formwork, and the retractable length of the retractable steel wire rope is adjusted by adjusting the fixing knob at the bottom end of the retractable steel wire rope.
[0008] Preferably, the number of the structural column longitudinal reinforcements is set to four, and the four structural column longitudinal reinforcements are distributed in a matrix shape, the number of structural column stirrups is set to multiple, and the multiple structural column stirrups are distributed in a linear array and are sleeved on the outside of the four structural column longitudinal reinforcements. The cross-sectional shape of the formed structural column support frame is rectangular, so that the first embedded template and the second embedded template are distributed vertically.
[0009] Preferably, the inserting strip and the cage opening are respectively located on one side of the first embedded template and the second embedded template that are attached to the structural column support frame, and the inserting strip is fixed on the first embedded template and at a side position adjacent to the second embedded template, so that the inserting strip is inserted into the cage opening when the first embedded template and the second embedded template are combined.
[0010] Preferably, the number of the cuttings is at least two, the number of the cage openings is twice that of the cuttings, the cage openings correspond to the installation positions of the cuttings, and the outer diameter of the cuttings matches the inner diameter of the cage openings.
[0011] Preferably, the number of the storage grooves located on the first embedded template and the second embedded template is set to two, and the two storage grooves in the same group are distributed in parallel, through holes are provided at both ends of the inner side of the storage groove, and the wall reinforcement penetrates the through holes, and the two wall reinforcements in the same storage groove are staggered.
[0012] Preferably, after the wall reinforcement is combined with the first embedded template or the second embedded template, the distances extending from both sides of the through hole are respectively recorded as l 1 and l 2, among which l 1 represents the local distance between the wall reinforcement and the structural column support frame. l 2 represents the local distance between the wall reinforcement and the structural column support frame, and l 1≥100mm, l 2≥600mm; The diameter of the wall reinforcement is d , the inner diameter length of the receiving groove is a , the inner diameter width of the receiving groove is b , the depth of the storage groove is c ,but a ≥ l 2. b ≥2 d 、 c ≥ d .
[0013] Preferably, the through hole is configured as a circular through hole that matches the outer diameter of the wall reinforcement.
[0014] Preferably, the two adjusting and fixing knobs are rotatably connected to the first embedded template and the second embedded template respectively, and the end of the retractable steel wire rope away from the iron hook is wound around the adjusting and fixing knob, and the first embedded template and the second embedded template are both provided with a tightening bolt for switching the adjusting and fixing knob between a fixed state and an active state.
[0015] In addition, an embodiment of the present invention further provides a method for constructing the above-mentioned elevator shaft secondary structure in coordination with the main structure one-step forming assembly, and the construction process is as follows: Step 1: Based on the building structure and elevator detailed drawings, deepen the shaft layout and layout, determine the wall layout, structural column cross-section and position, door opening width and height, and determine the specifications and position of the structural column longitudinal reinforcement and structural column stirrups; Step 2: During the construction of the floor slab, the longitudinal reinforcement of the structural column shall be embedded in advance to a depth of 300mm, with a bending section of 150mm. The structural column stirrups shall be tied according to the structural column structural drawings. The stirrups within 600mm of the bottom of the longitudinal reinforcement of the structural column shall be appropriately increased. The number of stirrups in the increased area shall be ≥4, and the spacing between two adjacent stirrups shall be ≤200mm. Step 3: Assemble the first embedded template and the second embedded template by connecting the inserts and the fastening, and fit them at 90 degrees to the outside of the structural column support frame. One end of the first embedded template and the second embedded template extends into the structural column support frame, and the other end is bent and embedded in the wall reinforcement. Fill with foam for sealing. After the foam is cured, install it according to the detailed drawing position, and use iron hooks, retractable steel wire ropes and adjustment knobs for auxiliary fixing; Step 4: Apply a release agent to the surface of the support formwork and use it to seal the structural column support frame. Then use a laser to calibrate the support formwork so that its verticality deviation is ≤3mm / m and the cross-sectional size is ±3mm; Step 5: After the concrete strength reaches 75% of the designed concrete cube compressive strength standard value, remove the support formwork, remove the foam material in the storage groove, and use tools to straighten the wall reinforcement and keep it level with the masonry wall; Step 6: Planting the ring beam reinforcement: Drill holes on the structural columns with a hole diameter of 1.5-2 times the diameter of the reinforcement and a hole depth of ≥15 times the diameter of the reinforcement. Step 7: Transport the blocks processed in the factory to the site and build the elevator shaft wall structure according to the layout and detailed drawing.
[0016] Compared with the prior art, the present invention has the following improvements: By adopting standardized embedded formwork, which is embedded with a concealed wall reinforcement structure, optimizing its docking combination structure and hanging and fixing components, multiple wall reinforcements can be installed at the same time, which is simple to fix and more efficient than traditional methods, reducing the cost and labor hours of later reinforcement planting, and facilitating on-site construction. When in use, the construction sequence is optimized, the shaft wall is laid out and deepened in advance, and the structural columns and the main body are cast at the same time, which reduces the time for later secondary structure reinforcement and pulling, and can accurately determine the position of the wall reinforcement, resulting in better molding quality and no problem of interfering with concrete pouring. The installation and disassembly of the formwork is convenient and quick, and the construction efficiency and processing accuracy are significantly improved, thus realizing fast and efficient construction of the shaft. Standardized pre-embedded components are mass-produced in the workshop and are quick and easy to install, eliminating the need for on-site equipment. During construction, direct assembly and docking can be performed, simplifying the process, reducing both construction difficulty and costs, and significantly improving efficiency. The elevator shaft structural columns are formed at the same time as the main structure, which enhances the integrity and solves the difficulty of separate construction of structural columns and main body, which makes it difficult to control the construction quality. The masonry is arranged, deepened and processed in advance, which reduces the on-site loss rate of masonry materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the elevator shaft secondary structure provided by the present invention cooperating with the main structure one-time formed assembly (wall reinforcement pulled out state).
[0018] Figure 2 Schematic diagram of the elevator shaft secondary structure provided by the present invention cooperating with the main structure one-time formed assembly (wall reinforcement storage state).
[0019] Figure 3 For the present invention Figure 1 Top view of the structure shown.
[0020] Figure 4 For the present invention Figure 1 Front view of the structure shown.
[0021] Figure 5 This is a first perspective stereoscopic image of the first embedded template in the present invention.
[0022] Figure 6 This is a second perspective stereoscopic image of the first embedded template in the present invention.
[0023] Figure 7 This is a first perspective stereoscopic image of the second embedded template in the present invention.
[0024] Figure 8 This is a second perspective stereoscopic image of the second embedded template in the present invention.
[0025] Markings in the figure: Structural column longitudinal reinforcement - 1; structural column stirrups - 2; first embedded formwork - 3; second embedded formwork - 4; wall reinforcement - 5; insertion strip - 6; iron hook - 7; retractable steel wire rope - 8; adjustment and fixing knob - 9; storage slot - 10; fastening opening - 11. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0027] like Figure 1-8 The secondary structure of the elevator shaft shown cooperates with the main structure to form a one-time assembly, including structural column longitudinal reinforcement 1 and structural column stirrups 2. The structural column longitudinal reinforcement 1 and the structural column stirrups 2 are tied together by steel bars to form a structural column support frame. A first embedded template 3 and a second embedded template 4 are provided on the outside of the structural column support frame. Wall reinforcement 5 runs through the first embedded template 3 and the second embedded template 4. The outer wall of the first embedded template 3 is integrally provided with an insertion strip 6, and the outer wall of the second embedded template 4 is integrally provided with a cage opening 11. The first embedded template 3 and the second embedded template 4 are adjacent to each other on one side and are connected to the cage opening 11 through the insertion strip 6. The first embedded formwork 3 and the second embedded formwork 4 are both provided with a receiving groove 10 on the side away from the structural column support frame for receiving the wall reinforcement 5. The tops of the first embedded formwork 3 and the second embedded formwork 4 are both provided with an iron hook 7 and a retractable steel wire rope 8, and the iron hook 7 is fixed to the top of the retractable steel wire rope 8. The side walls of the first embedded formwork 3 and the second embedded formwork 4 are both installed with an adjustment and fixing knob 9, and the bottom end of the retractable steel wire rope 8 is adjusted by adjusting the fixing knob 9 to adjust the retractable length of the retractable steel wire rope 8. After the first embedded formwork 3 and the second embedded formwork 4 are combined, the iron hook 7 is used to adjust the length of the retractable steel wire rope 8 and then fix it to the structural column support frame. Specifically, the iron hook 7 is hung on the structural column stirrup 2.
[0028] Specifically, in the above technical solution, the number of structural column longitudinal reinforcements 1 is set to four, and the four structural column longitudinal reinforcements 1 are distributed in a matrix shape, the number of structural column stirrups 2 is set to multiple, and the multiple structural column stirrups 2 are distributed in a linear array and are sleeved on the outside of the four structural column longitudinal reinforcements 1. The cross-sectional shape of the formed structural column support frame is rectangular, so that the first embedded template 3 and the second embedded template 4 are distributed vertically.
[0029] Specifically, in the above technical solution, the insertion strip 6 and the cage opening 11 are respectively located on one side of the first embedded template 3 and the second embedded template 4 that are attached to the structural column support frame, and the insertion strip 6 is fixed on the first embedded template 3 and at a side position adjacent to the second embedded template 4, so that the insertion strip 6 is inserted into the cage opening 11 when the first embedded template 3 and the second embedded template 4 are combined.
[0030] Specifically, in the above technical solution, the number of the inserts 6 is at least two, the number of the openings 11 is twice that of the inserts 6, the openings 11 correspond to the installation positions of the inserts 6, and the outer diameter of the inserts 6 matches the inner diameter of the openings 11, thereby improving the docking accuracy and stability after insertion.
[0031] Specifically, in the above technical solution, the number of receiving grooves 10 on the first embedded template 3 and the second embedded template 4 is set to two, and the two receiving grooves 10 in the same group are arranged in parallel. Through holes are provided at both ends of the inner side of the receiving grooves 10, and the wall reinforcement 5 passes through the through holes. The two wall reinforcements 5 in the same receiving groove 10 are staggered. The multiple wall reinforcements 5 are completely embedded in the receiving grooves 10 and buried by the filling foam.
[0032] Specifically, in the above technical solution, after the wall reinforcement 5 is combined with the first embedded template 3 or the second embedded template 4, the distances extending from both sides of the through hole are respectively recorded as l 1 and l 2, among which l 1 represents the local distance between the wall reinforcement 5 and the structural column support frame. l 2 represents the local distance between the wall reinforcement 5 and the structural column support frame, and l1≥100mm, l 2≥600mm; The diameter of the wall reinforcement 5 is d , the inner diameter length of the receiving groove 10 is a The inner diameter width of the receiving groove 10 is b , the depth of the storage groove 10 is c ,but a ≥ l 2. b ≥2 d 、 c ≥ d The vertical spacing between two wall reinforcement bars 5 in the same receiving slot 10 is at least 600 mm, and the horizontal spacing between two wall reinforcement bars 5 in two adjacent receiving slots 10 is at least 140 mm.
[0033] Specifically, in the above technical solution, the through hole is set as a circular through hole that matches the outer diameter of the wall reinforcement 5. As an alternative, the through hole can also be set as a strip-shaped through hole so that the installation position of the wall reinforcement 5 can be adjusted.
[0034] Specifically, in the above technical solution, two adjustment and fixing knobs 9 are rotatably connected to the first embedded template 3 and the second embedded template 4, respectively. The end of the retractable steel wire rope 8, away from the iron hook 7, is wound around the adjustment and fixing knobs 9. The first and second embedded templates 3 and 4 are both provided with a tightening bolt for switching the adjustment and fixing knobs 9 between a fixed state and a movable state. During use, the combined structure of the first and second embedded templates 3 and 4 is hung on the structural column support frame via the retractable steel wire rope 8 and the iron hook 7, facilitating pre-positioning and subsequent reinforcement, and convenient operation.
[0035] In addition, an embodiment of the present invention further provides a construction method for the above elevator shaft secondary structure to cooperate with the main structure of the one-time forming assembly, and the construction process is as follows: Step 1: Based on the building structure and elevator detailed drawings, deepen the shaft layout and layout, determine the wall layout, structural column cross-section and position, door opening width and height, and determine the specifications and position of structural column longitudinal reinforcement 1 and structural column stirrups 2; Step 2: During the construction of the floor slab, the structural column longitudinal reinforcement 1 is embedded in advance to a depth of 300mm, with a bending section of 150mm. The structural column stirrups 2 are tied according to the structural column structural drawings, and the structural column stirrups 2 within 600mm of the bottom of the structural column longitudinal reinforcement 1 are appropriately increased. The number of structural column stirrups 2 in the increased area is ≥4, and the spacing between two adjacent structural column stirrups 2 is ≤200mm. Step 3: Assemble the first embedded template 3 and the second embedded template 4 by connecting the insert 6 and the fastening 11, and fit them at 90 degrees to the outside of the structural column support frame. One end of the first embedded template 3 and the second embedded template 4 extends into the structural column support frame, and the other end is bent and embedded in the wall reinforcement 5, filled with foam for sealing. When the embedded parts leave the factory, the wall reinforcement is bent 90 degrees in the receiving groove 10 to prevent concrete from being poured into the receiving groove 10; after the foam is cured, install it according to the detailed drawing position, and use the iron hook 7, retractable wire rope 8 and adjustment and fixing knob 9 for auxiliary fixation; Step 4: Apply a release agent to the surface of the support formwork and use it to seal the structural column support frame. Then use a laser to calibrate the support formwork so that its verticality deviation is ≤3mm / m and the cross-sectional size is ±3mm; Step 5: After the concrete strength reaches 75% of the designed concrete cube compressive strength standard value, remove the support formwork, remove the foam material in the receiving groove 10, and use tools to straighten the wall reinforcement 5 and keep it level with the masonry wall; Step 6: Planting the ring beam reinforcement: Drill holes on the structural columns with a hole diameter of 1.5-2 times the diameter of the reinforcement and a hole depth of ≥15 times the diameter of the reinforcement. Step 7: Transport the blocks processed in the factory to the site and build the elevator shaft wall structure according to the layout and detailed drawing.
[0036] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.
Claims
1. An elevator shaft secondary structure cooperates with a main structure to form a one-step forming component, comprising a structural column longitudinal reinforcement (1) and a structural column stirrup (2), wherein the structural column longitudinal reinforcement (1) and the structural column stirrup (2) are tied together by steel bars to form a structural column support frame, characterized in that: A first embedded template (3) and a second embedded template (4) are provided on the outer side of the structural column support frame, and wall reinforcement (5) is passed through the first embedded template (3) and the second embedded template (4). The outer wall of the first embedded template (3) is integrally provided with an inserting strip (6), and the outer wall of the second embedded template (4) is integrally provided with a fastening opening (11), and the first embedded template (3) is fitted with the adjacent side of the second embedded template (4), and is connected to the fastening opening (11) through the inserting strip (6); The first embedded template (3) and the second embedded template (4) are both provided with a receiving groove (10) on a side away from the structural column support frame for receiving the wall reinforcement (5); the top of the first embedded template (3) and the second embedded template (4) are both provided with an iron hook (7) and a retractable steel wire rope (8), and the iron hook (7) is fixed to the top of the retractable steel wire rope (8); the side walls of the first embedded template (3) and the second embedded template (4) are both installed with an adjusting fixing knob (9), and the bottom end of the retractable steel wire rope (8) is adjusted by adjusting the fixing knob (9) to adjust the retractable length of the retractable steel wire rope (8).
2. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 1 is characterized by: The number of the structural column longitudinal bars (1) is set to four, and the four structural column longitudinal bars (1) are distributed in a matrix shape. The number of the structural column stirrups (2) is set to multiple, and the multiple structural column stirrups (2) are distributed in a linear array and are sleeved on the outside of the four structural column longitudinal bars (1). The cross-sectional shape of the formed structural column support frame is rectangular, so that the first embedded template (3) and the second embedded template (4) are distributed vertically.
3. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 2 is characterized by: The inserting strip (6) and the opening (11) are respectively located on one side of the first embedded template (3) and the second embedded template (4) that are in contact with the structural column support frame, and the inserting strip (6) is fixed on the first embedded template (3) at a side position adjacent to the second embedded template (4), so that the inserting strip (6) is inserted into the opening (11) when the first embedded template (3) and the second embedded template (4) are combined.
4. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 1 is characterized by: The number of the cutting strips (6) is at least two, the number of the openings (11) is twice the number of the cutting strips (6), the openings (11) correspond to the installation positions of the cutting strips (6), and the outer diameter of the cutting strips (6) matches the inner diameter of the openings (11).
5. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 1 is characterized by: The number of the receiving grooves (10) located on the first embedded template (3) and the second embedded template (4) is set to two, and the two receiving grooves (10) in the same group are distributed in parallel, and through holes are provided at both ends of the inner side of the receiving groove (10), and the wall reinforcement (5) penetrates the through holes, and the two wall reinforcements (5) in the same receiving groove (10) are staggered.
6. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 5 is characterized by: After the wall reinforcement (5) is combined with the first embedded template (3) or the second embedded template (4), the distances extending from both sides of the through hole are recorded as l 1 and l 2, among which l 1 represents the local distance between the wall reinforcement (5) and the structural column support frame. l 2 represents the local distance between the wall reinforcement (5) and the structural column support frame, and l 1≥100mm, l 2≥600mm; The diameter of the wall reinforcement (5) is d , the inner diameter length of the receiving groove (10) is a , the inner diameter width of the receiving groove (10) is b , the depth of the receiving groove (10) is c ,but a ≥ l 2. b ≥2 d 、 c ≥ d .
7. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 5 is characterized by: The through hole is configured as a circular through hole that matches the outer diameter of the wall reinforcement (5).
8. The elevator shaft secondary structure and main structure one-step forming assembly according to claim 1 is characterized by: The two adjusting and fixing knobs (9) are rotatably connected to the first embedded template (3) and the second embedded template (4), respectively, and one end of the retractable steel wire rope (8) away from the iron hook (7) is wound around the adjusting and fixing knob (9). The first embedded template (3) and the second embedded template (4) are both provided with a tightening bolt for switching the adjusting and fixing knob (9) between a fixed state and a movable state.
9. The method for constructing a primary molding assembly of an elevator shaft secondary structure in coordination with a main structure according to any one of claims 1 to 8, characterized in that: The construction process is as follows: Step 1: Based on the building structure and elevator detailed drawings, deepen the shaft layout and layout, determine the wall layout, structural column cross-section and position, door opening width and height, and determine the specifications and position of the structural column longitudinal reinforcement (1) and the structural column stirrups (2); Step 2: When constructing the floor slab, the structural column longitudinal reinforcement (1) is pre-buried to a depth of 300 mm, a bending section of 150 mm is set, and the structural column stirrups (2) are tied according to the structural column structural drawing. The structural column stirrups (2) within 600 mm of the bottom of the structural column longitudinal reinforcement (1) are appropriately densified. The number of structural column stirrups (2) in the densified area is ≥4, and the spacing between two adjacent structural column stirrups (2) is ≤200 mm. Step 3: The first embedded template (3) and the second embedded template (4) are docked and assembled through the insert (6) and the fastening (11), and are fitted at 90 degrees to the outside of the structural column support frame. One end of the first embedded template (3) and the second embedded template (4) extends into the structural column support frame, and the other end is bent and embedded in the wall reinforcement (5), and is filled with foam for sealing. After the foam is cured, it is installed according to the position of the deepening drawing, and is auxiliary fixed with the iron hook (7), the retractable steel wire rope (8) and the adjustment and fixing knob (9); Step 4: Apply a release agent to the surface of the support formwork and use it to seal the structural column support frame. Then use a laser to calibrate the support formwork so that its verticality deviation is ≤3mm / m and the cross-sectional size is ±3mm; Step 5: After the concrete strength reaches 75% of the designed concrete cube compressive strength standard value, remove the support formwork, remove the foaming material in the receiving groove (10), and use tools to straighten the wall reinforcement (5) and keep it level with the masonry wall; Step 6: Planting the ring beam reinforcement: Drill holes on the structural columns with a hole diameter of 1.5-2 times the diameter of the reinforcement and a hole depth of ≥15 times the diameter of the reinforcement. Step 7: Transport the blocks processed in the factory to the site and build the elevator shaft wall structure according to the layout and detailed drawing.
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