Elevator shaft secondary structure collaborative primary body structure one-time forming assembly and construction method

Abstract

This invention discloses a one-time molding component and construction method for the secondary structure and main structure of an elevator shaft. The molding component includes longitudinal reinforcement and stirrups for the structural columns. The longitudinal reinforcement and stirrups are tied together to form a structural column support frame. A first and second pre-embedded template are set on the outside of the structural column support frame, and wall tie bars penetrate both the first and second pre-embedded templates. This invention uses pre-embedded templates with concealable wall tie bars and optimizes their docking and fixing structures and hanging components, which facilitates on-site construction. It further optimizes the construction sequence by pre-laying out and refining the shaft walls, and pouring the structural columns and main structure simultaneously, reducing the time for subsequent secondary structure reinforcement installation and pulling. It can accurately determine the position of the wall tie bars, resulting in better molding quality and no interference with concrete pouring. The installation and dismantling of the templates are convenient and quick, significantly improving construction efficiency and processing accuracy, and realizing rapid and efficient construction of the shaft.

Description

Technical Field

[0001] This invention belongs to the field of construction technology of brick masonry structure of elevator shaft, specifically involving the one-time molding components and construction method of secondary structure and main structure of elevator shaft. Background Technology

[0002] With economic and social development, high-rise buildings are gradually increasing, and people's demand for convenient travel is also increasing. As a result, more and more buildings need to be equipped with elevators, which also places new demands on the safety and speed of elevator shafts.

[0003] The elevator shaft structure mainly consists of shear walls, brick masonry, structural columns, and ring beams. The ring beams and structural columns are typically constructed after the main structure has been poured and the brickwork beneath them has been completed. The connection between the ring beams / structural columns and the main structure uses rebar anchoring, which cannot guarantee the quality of the anchoring and is time-consuming. Furthermore, the secondary pouring of ring beams and structural columns requires the re-establishment of structural column formwork. The narrow material inlet of the formwork makes manual concrete pouring difficult and compromises the quality of the concrete. Using formwork in conjunction with construction requires highly skilled workers, has low efficiency, and impacts the construction period. In addition, the formwork needs to be removed after the structural columns and ring beams are constructed, which can easily damage the secondary structural concrete and further prolongs the construction time.

[0004] For example, Chinese patent application No. 202311716691.0 discloses a formwork system and construction method for the simultaneous construction of the secondary structure and main structure of an elevator shaft. The formwork system includes an outer structure of structural columns, an outer structure of ring beams, and a ring beam support structure. The outer structure of structural columns includes multiple structural column steel plates, which are used to form an integral whole with the concrete of the structural columns. The structural column steel plates include toothed steel plates, which are set on the side where the structural column connects with the brick masonry. Multiple horizontal tie bar reserved holes are opened on the toothed steel plates, and horizontal tie bars of the structural columns are reserved in the horizontal tie bar reserved holes. The horizontal tie bars of the structural columns are used for subsequent binding with the brick masonry reinforcement. The ring beam support structure includes multiple ring beam formwork frames, which support the outer structure of the ring beams, which are used to form an integral whole with the concrete of the ring beams. The outer structure of the ring beams is located between the outer structure of the structural columns and the formwork components of the main structure, or between two outer structures of structural columns. In practical application, this scheme requires sequentially inserting the horizontal tie bars of the structural column into the pre-drilled holes for the horizontal tie bars on the structural column steel plate, with a lap length reserved. For the construction of 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 the ring beam reinforcement is anchored into the main structure. This operation presents problems for the installation and dismantling of formwork before and after concrete pouring, is inconvenient to operate on-site, and results in a long overall waiting time, necessitating further improvements in construction efficiency.

[0005] Therefore, it is necessary to research and develop components for the secondary structure of elevator shaft to be formed in conjunction with the main structure in one step and construction methods to solve the above problems. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a one-time molding component and construction method for the secondary structure and main structure of elevator shafts. By optimizing the construction sequence, adjusting the construction deployment, and advancing the secondary detailing, it achieves efficient construction of the elevator shaft while meeting quality requirements, thereby improving construction efficiency and reducing costs.

[0007] The present invention provides the following technical solution: The elevator shaft secondary structure and the main structure are formed in one piece, including the longitudinal reinforcement of the structural column and the stirrup of the structural column. The longitudinal reinforcement of the structural column and the stirrup of the structural column are tied together by steel bars to form a structural column support frame. A first pre-embedded template and a second pre-embedded template are set on the outside of the structural column support frame. Wall tie bars are passed through the first pre-embedded template and the second pre-embedded template. An insert is integrally set on the outer wall of the first pre-embedded template and a retaining groove is integrally set on the outer wall of the second pre-embedded template. The first pre-embedded template and the second pre-embedded template are attached to each other on the adjacent side and are connected and combined by insert and retaining groove. Both the first and second embedded templates have storage grooves on the side away from the structural column support frame for storing wall tie bars. Both the first and second embedded templates have iron hooks and retractable steel wire ropes at the top, with the iron hooks fixed to the top of the retractable steel wire ropes. Both the first and second embedded templates have adjustment and fixing knobs installed on their side walls, and the retractable steel wire ropes can be adjusted in length by adjusting the bottom of the retractable steel wire ropes using the adjustment and fixing knobs.

[0008] Preferably, the number of longitudinal reinforcement bars of the structural column is set to four, and the four longitudinal reinforcement bars of the structural column are distributed in a matrix. The number of stirrups of the structural column is set to multiple, and the multiple stirrups of the structural column are distributed in a linear array and are sleeved on the outside of the four longitudinal reinforcement bars of the structural column. The cross-sectional shape of the structural column support frame is rectangular, so that the first pre-embedded template and the second pre-embedded template are distributed perpendicularly.

[0009] Preferably, the insert and the retaining hole are located on one side of the first and second pre-embedded templates that fit into the structural column support frame, and the insert is fixed on the first pre-embedded template at a side position adjacent to the second pre-embedded template, so that the insert is inserted into the retaining hole when the first and second pre-embedded templates are combined.

[0010] Preferably, the number of inserts is at least two, the number of retaining holes is twice the number of inserts, the retaining holes correspond to the installation positions of the inserts, and the outer diameter of the inserts matches the inner diameter of the retaining holes.

[0011] Preferably, the number of the storage slots on the first and second pre-embedded templates is set to two, and the two storage slots in the same group are distributed in parallel. Both ends of the inner side of the storage slot are provided with through holes, and the wall tie rods penetrate the through holes. The two wall tie rods in the same storage slot are staggered.

[0012] Preferably, after the wall tie bar is combined with the first or second embedded template, the distances extending from both sides of the through hole are denoted as follows: l 1 and l 2, of which l 1 indicates the local distance of the wall tie bar near the structural column support frame. l 2 indicates the distance of the wall tie bar from the structural column support frame in a local section, and l 1≥100mm, l 2≥600mm; The diameter of the wall tie rod is d The inner diameter of the storage slot is [length missing]. a The inner diameter of the storage slot is b The depth of the storage slot is c ,but a ≥ l 2. b ≥2 d , c ≥ d .

[0013] Preferably, the through hole is a circular through hole that matches the outer diameter of the wall tie rod.

[0014] Preferably, the two adjustment and fixing knobs are rotatably connected to the first pre-embedded template and the second pre-embedded template respectively, and the end of the retractable steel wire rope away from the iron hook is wound around the adjustment and fixing knob. Both the first pre-embedded template and the second pre-embedded template are provided with abutting bolts to switch the adjustment and fixing knob between a fixed state and an active state.

[0015] Furthermore, this invention also provides a construction method for the elevator shaft secondary structure and main structure integral molding assembly as described above. The construction process is as follows: Step 1: Based on the building structure and elevator detailed drawings, refine the layout and arrangement of the shaft, determine the wall layout, the cross-section and position of the structural columns, the width and height of the door openings, and determine the specifications and positions of the longitudinal reinforcement and stirrups of the structural columns. Step 2: When constructing the floor slab, pre-embed the longitudinal reinforcement of the structural column to a depth of 300mm and set a 150mm bend. Tie the stirrups of the structural column according to the structural column drawings. The stirrups of the structural column should be appropriately densified within 600mm of the bottom of the longitudinal reinforcement of the structural column. The number of stirrups in the densified area should be ≥4 and the spacing between two adjacent stirrups should be ≤200mm. Step 3: Combine the first and second pre-embedded templates by connecting them with the insert strips and the joint, and attach them to the outside of the structural column support frame at a 90° angle. Extend one end of the wall tie bar into the structural column support frame, and bend the other end into the storage groove. Fill with foam to seal it. After the foam has cured, install it according to the position in the detailed drawings, and use iron hooks, retractable steel wire ropes and adjusting and fixing knobs for auxiliary fixing. Step 4: Apply release agent to the surface of the support formwork and use it to seal the structural column support frame. Then, use a laser instrument to correct the support formwork so that its verticality deviation is ≤3mm / m and the cross-sectional dimensions are ±3mm. Step 5: After the concrete strength reaches 75% of the standard value of the design concrete cube compressive strength, remove the support formwork, remove the foaming material from the storage tank, and straighten the wall tie rods with tools to keep them horizontal with the masonry wall. Step 6: Planting the ring beam reinforcement. Drill holes in the structural column. The hole diameter should be 1.5-2 times the diameter of the reinforcement, and the hole depth should be ≥15 times the diameter of the reinforcement. Step 7: Transport the factory-processed blocks to the site and construct the elevator shaft wall structure according to the layout and detailed drawings.

[0016] The improvement of this invention compared to the prior art lies in: By adopting standardized pre-embedded templates with concealable wall tie structures, optimizing their docking and assembly structures and hanging and fixing components, and simultaneously installing multiple wall ties, the fixing is simple and efficient compared to traditional methods. This reduces the cost and time required for subsequent rebar installation and facilitates on-site construction. During use, the construction sequence is optimized, allowing for pre-layout and refinement of the shaft walls, and simultaneous pouring of structural columns and the main structure. This reduces the time required for subsequent secondary structure rebar installation and pulling, and enables precise determination of the wall tie positions, resulting in better forming quality and eliminating interference with concrete pouring. The templates are easy and quick to install and dismantle, significantly improving construction efficiency and processing precision, thus achieving rapid and efficient shaft construction.

[0017] Pre-embedded components, manufactured using standardized processes, are mass-produced in the workshop and are simple and quick to install, without occupying on-site equipment resources. During construction, assembly and connection are performed directly, simplifying the process, reducing construction difficulty and costs, and greatly improving construction efficiency.

[0018] The elevator shaft structural columns are formed in one piece along with the main structure, resulting in greater integrity and solving the problem of difficulty in controlling construction quality when the structural columns are constructed separately from the main structure. The pre-planning, detailing, and processing of masonry reduces the on-site loss rate of masonry materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the elevator shaft secondary structure and main structure one-time molding component (wall tie bar pulled out state) provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the elevator shaft secondary structure and main structure one-time molding component (wall tie rod storage state) provided by the present invention.

[0021] Figure 3 For the present invention Figure 1 Top view of the structure shown.

[0022] Figure 4 For the present invention Figure 1 The front view of the structure shown.

[0023] Figure 5 This is a first-view perspective perspective view of the first pre-embedded template in this invention.

[0024] Figure 6 This is a second-view perspective perspective view of the first pre-embedded template in this invention.

[0025] Figure 7 This is a first-view perspective perspective view of the second pre-embedded template in this invention.

[0026] Figure 8 This is a second-view perspective perspective view of the second pre-embedded template in this invention.

[0027] Marked in the image: Longitudinal reinforcement of structural column-1; Stirrups of structural column-2; First embedded template-3; Second embedded template-4; Wall tie bar-5; Insert strip-6; Iron hook-7; Telescopic steel wire rope-8; Adjustment and fixing knob-9; Storage groove-10; Secure jaw-11. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] like Figure 1-8 The elevator shaft secondary structure and main structure are integrated into a single-piece molding component, including the longitudinal reinforcement 1 and the stirrup 2 of the structural column. The longitudinal reinforcement 1 and the stirrup 2 of the structural column are tied together with steel bars to form a structural column support frame. A first embedded template 3 and a second embedded template 4 are set on the outside of the structural column support frame. Wall tie bars 5 penetrate the first embedded template 3 and the second embedded template 4. An insert 6 is integrally set on the outer wall of the first embedded template 3. A retaining groove 11 is integrally set on the outer wall of the second embedded template 4. The first embedded template 3 and the second embedded template 4 are attached to each other on the adjacent side and are connected and combined by the insert 6 and the retaining groove 11. Both the first embedded template 3 and the second embedded template 4 have a storage groove 10 on the side away from the structural column support frame to store the wall tie rods 5. Both the first embedded template 3 and the second embedded template 4 have an iron hook 7 and a retractable steel wire rope 8 at their top, with the iron hook 7 fixed to the top of the retractable steel wire rope 8. Adjustment and fixing knobs 9 are installed on the side walls of both the first embedded template 3 and the second embedded template 4, and the retractable steel wire rope 8's extension length is adjusted by the adjustment and fixing knobs 9. After the first embedded template 3 and the second embedded template 4 are combined, they are fixed to the structural column support frame by adjusting the length of the retractable steel wire rope 8 using the iron hook 7. Specifically, the iron hook 7 is hooked onto the structural column stirrups 2.

[0030] Specifically, in the above technical solution, the number of longitudinal reinforcement bars 1 of the structural column is set to four, and the four longitudinal reinforcement bars 1 of the structural column are distributed in a matrix. The number of stirrup bars 2 of the structural column is set to multiple, and the multiple stirrup bars 2 of the structural column are distributed in a linear array and are sleeved on the outside of the four longitudinal reinforcement bars 1 of the structural column. The cross-sectional shape of the structural column support frame is rectangular, so that the first pre-embedded template 3 and the second pre-embedded template 4 are distributed perpendicularly.

[0031] Specifically, in the above technical solution, the insert 6 and the retaining opening 11 are located on one side of the first pre-embedded template 3 and the second pre-embedded template 4 that are attached to the structural column support frame, and the insert 6 is fixed on the first pre-embedded template 3 and at the side position adjacent to the second pre-embedded template 4, so that when the first pre-embedded template 3 and the second pre-embedded template 4 are combined, the insert 6 is inserted into the retaining opening 11.

[0032] Specifically, in the above technical solution, the number of inserts 6 is at least two, and the number of locking jaws 11 is twice that of the inserts 6. The locking jaws 11 correspond to the installation positions of the inserts 6, and the outer diameter of the inserts 6 matches the inner diameter of the locking jaws 11. This improves the accuracy of the connection and the stability after insertion.

[0033] Specifically, in the above technical solution, the number of storage slots 10 on the first embedded template 3 and the second embedded template 4 is set to two, and the two storage slots 10 in the same group are distributed in parallel. Through holes are provided at both ends of the inner side of each storage slot 10, and wall tie bars 5 penetrate the through holes. The two wall tie bars 5 in the same storage slot 10 are staggered. This ensures that all the wall tie bars 5 are completely embedded in the storage slots 10 and buried by the foam filling.

[0034] Specifically, in the above technical solution, after the wall tie bar 5 is combined with the first embedded template 3 or the second embedded template 4, the distances extending to both sides of the through hole are respectively denoted as... l 1 and l 2, of which l 1 indicates the distance of the wall tie bar 5 near the structural column support frame in a local section. l 2 indicates the distance of the wall tie bar 5 from the structural column support frame in a local section, and l1≥100mm, l 2≥600mm; The diameter of wall tie 5 is d The inner diameter length of the storage slot 10 is a The inner diameter width of the storage slot 10 is b The depth of the storage slot 10 is c ,but a ≥ l 2. b ≥2 d , c ≥ d The vertical distance between two wall tie rods 5 located in the same storage slot 10 is at least 600mm, and the horizontal distance between two wall tie rods 5 located in adjacent storage slots 10 is at least 140mm.

[0035] Specifically, in the above technical solution, the through hole is set as a circular through hole that matches the outer diameter of the wall tie 5. As an alternative, the through hole can also be set as a strip-shaped through hole, allowing the installation position of the wall tie 5 to be adjusted.

[0036] Specifically, in the above technical solution, two adjusting 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 adjusting and fixing knob 9. Both the first embedded template 3 and the second embedded template 4 are equipped with locking bolts to switch the adjusting and fixing knob 9 between a fixed state and a movable state. In use, the combined structure of the first embedded template 3 and the second embedded template 4 is hooked onto the structural column support frame via the retractable steel wire rope 8 and the iron hook 7, facilitating pre-positioning and subsequent reinforcement, and simplifying operation.

[0037] Furthermore, this embodiment of the invention also provides a construction method for the above-mentioned elevator shaft secondary structure and main structure integral molding components, the construction process of which is as follows: Step 1: Based on the building structure and elevator detailed drawings, refine the layout and arrangement of the shaft, determine the wall layout, the cross-section and position of the structural columns, the width and height of the door openings, and determine the specifications and positions of the longitudinal reinforcement 1 and the stirrups 2 of the structural columns. Step 2: When constructing the floor slab, pre-embed the longitudinal reinforcement 1 of the structural column to a depth of 300mm and set a 150mm bend. Tie the stirrups 2 of the structural column according to the structural column drawings. The stirrups 2 of the structural column should be appropriately densified within the bottom 600mm of the longitudinal reinforcement 1 of the structural column. The number of stirrups 2 of the structural column in the densified area should be ≥4 and the spacing between two adjacent stirrups 2 of the structural column should be ≤200mm. Step 3: Connect the first embedded template 3 and the second embedded template 4 to the locking joint 11 via the insert 6, and fit them at a 90° angle to the outside of the structural column support frame. One end of the wall tie 5 extends into the structural column support frame, and the other end is bent and embedded into the storage groove 10. Fill with foam to seal it. When the embedded parts leave the factory, the wall tie is bent at a 90° angle into the storage groove 10 to prevent concrete from being poured into the storage groove 10. After the foam has cured, install it according to the position in the detailed drawings, and use iron hooks 7, retractable steel wire ropes 8 and adjusting and fixing knobs 9 for auxiliary fixing. Step 4: Apply release agent to the surface of the support formwork and use it to seal the structural column support frame. Then, use a laser instrument to correct the support formwork so that its verticality deviation is ≤3mm / m and the cross-sectional dimensions are ±3mm. Step 5: After the concrete strength reaches 75% of the standard value of the design concrete cube compressive strength, remove the support formwork, remove the foaming material in the storage trough 10, and straighten the wall tie bar 5 with a tool and keep it horizontal with the masonry wall. Step 6: Planting the ring beam reinforcement. Drill holes in the structural column. The hole diameter should be 1.5-2 times the diameter of the reinforcement, and the hole depth should be ≥15 times the diameter of the reinforcement. Step 7: Transport the factory-processed blocks to the site and construct the elevator shaft wall structure according to the layout and detailed drawings.

[0038] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A primary-formed component for the secondary structure of an elevator shaft in conjunction with the main structure, comprising longitudinal reinforcement bars (1) and stirrup bars (2) for structural columns, wherein the longitudinal reinforcement bars (1) and stirrup bars (2) are bound together with steel bars to form a structural column support frame, characterized in that: The outer side of the structural column support frame is provided with a first embedded template (3) and a second embedded template (4). Wall tie bars (5) are passed through both the first embedded template (3) and the second embedded template (4). An insert (6) is integrally provided on the outer wall of the first embedded template (3), and a retaining groove (11) is integrally provided on the outer wall of the second embedded template (4). The first embedded template (3) and the second embedded template (4) are attached to each other on the adjacent side and are connected and combined with the retaining groove (11) through the insert (6). The first embedded template (3) and the second embedded template (4) are provided with a storage groove (10) on the side away from the structural column support frame, for storing the wall tie rod (5). The first embedded template (3) and the second embedded template (4) are provided with an iron hook (7) and a retractable steel wire rope (8) on the top. The iron hook (7) is fixed to the top of the retractable steel wire rope (8). The first embedded template (3) and the second embedded template (4) are provided with an adjustment and fixing knob (9) on the side wall. The bottom of the retractable steel wire rope (8) is adjusted by adjusting the fixing knob (9) to adjust the length of the retractable steel wire rope (8).

2. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 1, characterized in that: The number of longitudinal reinforcement bars (1) of the structural column is set to four, and the four longitudinal reinforcement bars (1) of the structural column are distributed in a matrix. The number of stirrup bars (2) of the structural column is set to multiple, and the multiple stirrup bars (2) of the structural column are distributed in a linear array and are sleeved on the outside of the four longitudinal reinforcement bars (1). The cross-sectional shape of the structural column support frame is rectangular, so that the first pre-embedded template (3) and the second pre-embedded template (4) are distributed perpendicularly.

3. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 2, characterized in that: The insert (6) and the retaining hole (11) are respectively located on one side of the first pre-embedded template (3) and the second pre-embedded template (4) that are attached to the structural column support frame. The insert (6) is fixed on the first pre-embedded template (3) and at the side position adjacent to the second pre-embedded template (4), so that when the first pre-embedded template (3) and the second pre-embedded template (4) are combined, the insert (6) is inserted into the retaining hole (11).

4. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 1, characterized in that: The number of inserts (6) is at least two, and the number of slots (11) is twice that of inserts (6). The slots (11) correspond to the installation positions of the inserts (6), and the outer diameter of the inserts (6) matches the inner diameter of the slots (11).

5. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 1, characterized in that: The number of the storage slots (10) on the first pre-embedded template (3) and the second pre-embedded template (4) is set to two, and the two storage slots (10) in the same group are distributed in parallel. Both ends of the inner side of the storage slot (10) are provided with through holes, and the wall tie rods (5) penetrate through the through holes. The two wall tie rods (5) in the same storage slot (10) are staggered.

6. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 5, characterized in that: After the wall tie bar (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 denoted as . l 1 and l 2, of which l 1 indicates the distance of the wall tie bar (5) near the structural column support frame. l 2 indicates the distance of the wall tie bar (5) from the local section of the structural column support frame, and l 1≥100mm, l 2≥600mm; The diameter of the wall tie rod (5) is d The inner diameter length of the storage slot (10) is a The inner diameter width of the storage slot (10) is b The depth of the storage slot (10) is c ,but a ≥ l 2. b ≥2 d , c ≥ d .

7. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 5, characterized in that: The through hole is configured as a circular through hole that matches the outer diameter of the wall tie (5).

8. The elevator shaft secondary structure and main structure one-piece molding assembly according to claim 1, characterized in that: The two adjustment and fixing knobs (9) are rotatably connected to the first pre-embedded template (3) and the second pre-embedded template (4) respectively, and the end of the retractable steel wire rope (8) away from the iron hook (7) is wound around the adjustment and fixing knob (9). The first pre-embedded template (3) and the second pre-embedded template (4) are both provided with abutting bolts to switch the adjustment and fixing knob (9) between the fixed state and the movable state.

9. The construction method of the elevator shaft secondary structure and main structure integral molding component as described in any one of claims 1-8, characterized in that: The construction process is as follows: Step 1: Based on the building structure and elevator detailed drawings, refine the layout and arrangement of the shaft, determine the wall layout, the cross-section and position of the structural columns, the width and height of the door opening, and determine the specifications and positions of the longitudinal reinforcement (1) and the stirrups (2) of the structural columns. Step 2: When constructing the floor slab, embed the longitudinal reinforcement (1) of the structural column to a depth of 300mm and set a 150mm bend. Tie the stirrups (2) of the structural column according to the structural column drawings. The stirrups (2) of the structural column within 600mm of the bottom of the longitudinal reinforcement (1) of the structural column should be appropriately densified. The number of stirrups (2) of the structural column in the densified area should be ≥4 and the spacing between two adjacent stirrups (2) should be ≤200mm. Step 3: Connect the first embedded template (3) and the second embedded template (4) with the slot (6) and the fastener (11) and fit them at 90° to the outside of the structural column support frame. One end of the wall tie (5) extends into the structural column support frame, and the other end is bent and embedded into the storage groove (10). Fill with foam to seal it. After the foam has cured, install it according to the position of the detailed drawing, and use iron hook (7), retractable steel wire rope (8) and adjustment and fixing knob (9) for auxiliary fixing. Step 4: Apply release agent to the surface of the support formwork and use it to seal the structural column support frame. Then, use a laser instrument to correct the support formwork so that its verticality deviation is ≤3mm / m and the cross-sectional dimensions are ±3mm. Step 5: After the concrete strength reaches 75% of the standard value of the design concrete cube compressive strength, remove the support formwork, remove the foaming material in the storage groove (10), straighten the wall tie bar (5) with a tool and keep it horizontal with the masonry wall. Step 6: Planting the ring beam reinforcement. Drill holes in the structural column. The hole diameter should be 1.5-2 times the diameter of the reinforcement, and the hole depth should be ≥15 times the diameter of the reinforcement. Step 7: Transport the factory-processed blocks to the site and construct the elevator shaft wall structure according to the layout and detailed drawings.

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