One-time pouring construction method for non-full-shear elevator shaft constructional column along with main body

Abstract

The invention relates to the technical field of building structure design, in particular to a one-time pouring construction method of a non-full-shear elevator shaft constructional column along with a main body, which comprises the following steps: S1, confirming the position of a deepened constructional column; s2, template adaptation is carried out; s3, a working platform is erected; s4, moving and fixing the working platform; s5, construction and formwork installation; S6, concrete pouring and maintenance. And S7, the formwork and the working platform are dismantled. According to the construction method for the non-full-shear elevator shaft constructional column along with one-time pouring of the main body, the working platform is installed at the position of the building structure elevator shaft construction face, different from the construction procedures in the prior art, after the working platform is installed, turnover is conducted on each layer of working face, the construction procedures of the elevator shaft are reduced, and the construction efficiency is improved. And the construction period is further shortened.

Description

Technical Field

[0001] The invention relates to the technical field of building structure design, in particular to a construction method for pouring a non-full-shear elevator shaft structural column with a main body at one time. Background Art

[0002] At present, the elevator shaft in residential projects usually adopts the structure of masonry plus ring beam. This type of structure requires that after the main structure is completed, brick walls must be built in the elevator shaft first, and then the ring beam reinforcement, formwork and concrete pouring are separately tied, forming a multi-step process. After the above construction steps are completed, the formal elevator handover can be carried out.

[0003] Since this construction process requires repeated investment in formwork, formwork removal and concrete curing, and forms multiple independent processes, the construction period is extended.

[0004] Therefore, how to shorten the construction process of elevator shaft and reduce the construction period is a technical problem to be solved urgently in the prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that there are many elevator shaft construction processes in the prior art, and how to reduce the construction processes of the elevator shaft and thus reduce the construction period. A construction method for pouring the structural columns of a non-full-shear elevator shaft with the main body at one time is provided.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A construction method for pouring a non-full-shear elevator shaft structural column with a main body at one time comprises the following steps: S1. Confirm the position of the structural column: According to the drawings and the structural layout of the elevator shaft on site, confirm the position of the masonry area that needs to be deepened into the structural column, measure and record the dimensions, and mark the area; S2. Formwork adaptation: According to the detailed area and size confirmed on the drawings and on-site, communicate with the aluminum formwork unit to design the corresponding size template when using aluminum formwork, and cut the corresponding size on-site when using wooden formwork; Carry out the manufacturer's procurement work in advance, determine the elevator model of this project and the reinforcement requirements of its attachment rods, deepen the structural columns of the hoistway and feedback the original structural design to review the stress impact; S3. Work platform construction: The location where the formal elevator is installed in the on-site elevator shaft is an area where it is impossible to stand for construction. A work platform is set up in the area where the formal elevator is installed in the elevator shaft; After the working platform is set up, a scaffolding platform is set up towards the top floor of the building for construction workers to climb and construct; S4. Moving and fixing the working platform: Use a tower crane to move the working platform to the working surface in the elevator shaft and fix it to the next level of the working surface; S5. Construction and formwork installation: After the work platform is set up, the construction personnel are located on the work platform for construction. The formwork is transported to the elevator shaft by a tower crane or by hand. After the reinforcement is tied, the formwork is closed and reinforced. The reinforcement is tied together with the floor structure. The structural column reinforcement is reserved from the bottom plate. The construction process is as follows: install the transverse seam plate when pouring the upper layer of concrete → tie the structural column reinforcement skeleton → trim the structural column lap reinforcement extending from the bottom layer → install the structural column reinforcement skeleton → tie the stirrups at the lap joint → tie the protective layer pad; When assembling the structural column formwork, it is necessary to assemble it according to the formwork assembly diagram and in combination with the number. The cross-sectional width of the structural column should be matched with the width of the standard aluminum formwork plate as much as possible. The height direction is segmented according to the floor height to reduce the joints. The assembly should start from the end of the structural column. The pins do not need to be fully driven before closing. 50% is appropriate. After the other side of the formwork is assembled and closed, all the pins need to be tightened. The special structural column components provided by the manufacturer are used to improve the assembly efficiency. Adjustable steel diagonal braces (angle 45°~60°) are set on both sides of each structural column, and the support point spacing is ≤1.5m; S6. Concrete pouring and maintenance: There is a difference in the grades of concrete between the structural column and the beam and slab. The concrete is poured in a time difference manner. The structural column concrete is poured first, and the low-grade concrete of the beam and slab is poured after the initial setting. The time interval is strictly controlled to avoid the formation of cold joints, and at the same time, ensure that the structural column concrete does not flow into the beam and slab area. Combined with vibration control, the mixing risk is reduced; S7. Dismantling of formwork and working platform: After all concrete pouring of the elevator shaft is completed and the formwork is removed, the working platform is transported to the ground by means of a tower crane, and the dismantling of the working platform is completed on the ground; When dismantling the aluminum formwork of the column, the concrete strength must reach the design allowable value. Under normal circumstances, the column side formwork can be removed 12 hours after the concrete is poured. The removal order is: first remove the diagonal support, then remove the through-wall bolts and other connectors, and finally use a crowbar to pry the formwork apart from the wall. Support rod protection: During the dismantling process, the support rod must not be loosened or collided to avoid affecting the safety of the structure. Formwork cleaning: The removed formwork should be cleaned of dirt immediately and checked for deformation or damage. If necessary, it should be corrected or replaced in time. Accessories management: The removed accessories should be cleaned and counted in time, and transferred to the upper layer or designated location through the material transfer port to avoid loss or confusion.

[0007] Preferably, in step S3, the working platform comprises a plane plate and a supporting rod, the plane plate is used to provide a construction operation platform for construction personnel, the plane plate is kept at the same horizontal plane as the bottom plate of the building working surface, the supporting rod is used to support the plane plate to keep the plane plate balanced, the distance between the supporting rod and the ground is less than the distance between the plane plate and the ground, the supporting rod comprises an oblique supporting rod, a transverse supporting rod and a vertical supporting rod, one end of the oblique supporting rod is connected to the side of the plane plate facing the elevator door of the elevator shaft, and the oblique supporting rod is connected to the side of the plane plate facing the elevator door of the elevator shaft. The support rod is abutted against the inner wall of the elevator shaft, the other end of the oblique support rod is connected to the transverse support rod, one end of the transverse support rod is connected to the oblique support rod, the other end of the transverse support rod is abutted against the bottom plate of the elevator shaft facing the elevator door, one end of the vertical support rod is connected to the plane plate, the other end of the vertical support rod is connected to the transverse support rod, the vertical support rod is kept perpendicular to the building bottom plate facing the elevator shaft door, and the support rod members maintain a stable state when construction workers stand on the plane plate through the above-mentioned connection and cooperation relationship.

[0008] Preferably, a telescopic rod is provided on the side of the vertical support rod facing the elevator shaft chamber, one end of the telescopic rod is connected to the vertical support rod, the other end of the telescopic rod is a free end, the free end of the telescopic rod extends into the elevator shaft chamber, and the telescopic rod abuts against the cross beam in the elevator shaft chamber.

[0009] Preferably, the telescopic rod includes a first telescopic rod and a second telescopic rod, one end of the first telescopic rod is connected to the vertical support rod, the other end of the first telescopic rod is a free end, one end of the second telescopic rod is connected to the first telescopic rod, the other end of the second telescopic rod abuts against a ceiling in the room, the first telescopic rod and the second telescopic rod are connected and cooperated to remain vertical, and the telescopic rod increases the force transmitted by the vertical support rod toward the transverse support rod.

[0010] Preferably, the first telescopic rod and the vertical support rod are detachably connected.

[0011] Preferably, the transverse support rod comprises a first transverse rod, a second transverse rod and a third transverse rod, one end of the first transverse rod is connected to the oblique support rod, the other end of the first transverse rod is connected to one end of the second transverse rod, the other end of the second transverse rod is connected to one end of the third transverse rod, the other end of the third transverse rod abuts against the building, the first transverse rod, the second transverse rod and the third transverse rod are slidably connected, the second transverse rod is connected to the vertical support rod, the transverse support rod has a first matching form and a second matching form, in the first matching form, the central axis of the first transverse rod, the central axis of the second transverse rod and the central axis of the third transverse rod remain parallel and in the same straight line, in the second matching form, the central axis of the first transverse rod and the central axis of the third transverse rod remain parallel and in the same straight line, the central axis of the second transverse rod and the central axis of the first transverse rod remain parallel and the distance from the central axis of the second transverse rod to the bottom plate of the building is greater than the distance from the central axis of the first transverse rod to the bottom plate of the building, when the transverse support rod is transformed from the first matching form to the second matching form, the first transverse rod and the third transverse rod exert a force on the second transverse rod to make the second transverse rod vertically displaced on the vertical support rod.

[0012] Preferably, a groove is provided at the connection between the second transverse rod and the vertical support rod, and the groove keeps the vertical support rod in abutment with the second transverse rod. In the first matching form, the plane plate is inclined toward the inner side of the elevator shaft room, and in the second matching form, the plane plate and the bottom plate of the elevator shaft room are kept horizontal. When the transverse support rod is transformed from the second matching form to the first matching form, the connection between the plane plate and the vertical support rod produces a vertical displacement to cause the plane plate to tilt, and a gap is maintained between the edge of the plane plate and the vertical building structure of the elevator shaft. The third transverse rod and the second transverse rod are detachably connected and matched.

[0013] Preferably, a baffle is arranged around the edge of the flat plate, the baffle is arranged toward the side where the construction workers stand, and the baffle is used to prevent the material on the flat plate from falling into the elevator shaft.

[0014] Preferably, the baffle plate uses the connection between the baffle plate and the plane plate as a rotation axis, and the baffle plate rotates toward the edge of the plane plate as a rotation direction.

[0015] Preferably, a hook is provided on the flat plate, and the hook is used for connecting with a tower crane for lifting, so that the flat plate is kept stable when the tower crane lifts the working platform.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention discloses a method for pouring the structural columns of a non-full-shear elevator shaft at the same time as the main body. A working platform is set at the corresponding working surface of the building to facilitate the construction workers in the elevator shaft. The working platform includes the supporting plane plate and supporting rods. The supporting plane plate is used for the construction workers to work, and the supporting rods are used to support the supporting plane plate to protect the construction workers from working safely. Different from the construction methods of the prior art, the method adopted by the present invention safely and efficiently ensures the safety environment of the construction workers, speeds up the construction workers' work, and thus speeds up the overall progress of the project. 2. The non-full shear elevator shaft structural column is cast with the main body at one time. Through the transformation of the first matching form and the second matching form, the stable state of the working platform is further maintained. At the same time, such a transformation method ensures the safety environment of the construction personnel. The groove reduces the wear of the supporting plane plate and the supporting rod, thereby increasing the service life of the working platform and reducing the overall construction cost of the project. 3. In the construction method of a non-full-shear elevator shaft structural column being cast at one time with the main body described in the present invention, the hook further maintains the stability of the supporting plane plate, and the baffle further enhances the safety of the actual use of the working platform, while improving the practicability of the method described in the present invention during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flow chart of a construction method for pouring the structural columns of a non-full shear elevator shaft along with the main body at one time; Figure 2 It is a structural diagram of the working platform; Figure 3 is a structural schematic diagram of a partial cross section of the transverse support rod in a second matching state; Figure 4 is a structural schematic diagram of a partial cross section of the transverse support rod in a first matching state; Figure 5 It is a structural schematic diagram of the tower crane hoisting the working platform in Example 2.

[0018] Markings in the figure: 1-working platform, 2-plane board, 3-support rod, 4-oblique support rod, 5-lateral support rod, 6-vertical support rod, 7-telescopic rod, 8-first telescopic rod, 9-second telescopic rod, 10-first transverse rod, 11-second transverse rod, 12-third transverse rod, 13-groove, 14-baffle, 15-hook. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Example 1 like Figure 1 to Figure 2 As shown, a construction method for pouring a non-full-shear elevator shaft structural column with a main body at one time according to the present invention comprises the following steps: S1. Confirm the position of the structural column: According to the drawings and the structural layout of the elevator shaft on site, confirm the position of the masonry area that needs to be deepened into the structural column, measure and record the dimensions, and mark the area; S2. Formwork adaptation: According to the detailed area and size confirmed on the drawings and on-site, communicate with the aluminum formwork unit to design the corresponding size template when using aluminum formwork, and cut the corresponding size on-site when using wooden formwork; Carry out the manufacturer's procurement work in advance, determine the elevator model of this project and the reinforcement requirements of its attachment rods, deepen the structural columns of the hoistway and feedback the original structural design to review the stress impact; S3. Work platform construction: The location where the formal elevator is installed in the on-site elevator shaft is an area where it is impossible to stand for construction. A work platform is set up in the area where the formal elevator is installed in the elevator shaft; After the working platform is set up, a scaffolding platform is set up towards the top floor of the building for construction workers to climb and construct; S4. Moving and fixing the working platform: The working platform is moved to the working surface in the elevator shaft by means of a tower crane, and the supporting rods and the working platform are fixed and moved synchronously to the next level of the working surface; S5. Construction and formwork installation: After the work platform is set up, the construction personnel are located on the work platform for construction. The formwork is transported to the elevator shaft by a tower crane or by hand. After the reinforcement is tied, the formwork is closed and reinforced. The reinforcement is tied together with the floor structure. The structural column reinforcement is reserved from the bottom plate. The construction process is as follows: install the transverse seam plate when pouring the upper layer of concrete → tie the structural column reinforcement skeleton → trim the structural column lap reinforcement extending from the bottom layer → install the structural column reinforcement skeleton → tie the stirrups at the lap joint → tie the protective layer pad; When assembling the structural column formwork, it is necessary to assemble it according to the formwork assembly diagram and in combination with the number. The cross-sectional width of the structural column should be matched with the width of the standard aluminum formwork plate as much as possible. The height direction is segmented according to the floor height to reduce the joints. The assembly should start from the end of the structural column. The pins do not need to be fully driven before closing. 50% is appropriate. After the other side of the formwork is assembled and closed, all the pins need to be tightened. The special structural column components provided by the manufacturer are used to improve the assembly efficiency. Adjustable steel diagonal braces (angle 45°~60°) are set on both sides of each structural column, and the support point spacing is ≤1.5m; S6. Concrete pouring and maintenance: There is a difference in the grades of concrete between the structural column and the beam and slab. The concrete is poured in a time difference manner. The structural column concrete is poured first, and the low-grade concrete of the beam and slab is poured after the initial setting. The time interval is strictly controlled to avoid the formation of cold joints, and at the same time, ensure that the structural column concrete does not flow into the beam and slab area. Combined with vibration control, the mixing risk is reduced; S7. Dismantling of formwork and working platform: After all concrete pouring of the elevator shaft is completed and the formwork is removed, the working platform is transported to the ground by means of a tower crane, and the dismantling of the working platform is completed on the ground; When dismantling the aluminum formwork of the column, the concrete strength must reach the design allowable value. Under normal circumstances, the column side formwork can be removed 12 hours after the concrete is poured. The removal order is: first remove the diagonal support, then remove the through-wall bolts and other connectors, and finally use a crowbar to pry the formwork apart from the wall. Support rod protection: During the dismantling process, the support rod must not be loosened or collided to avoid affecting the safety of the structure. Formwork cleaning: The removed formwork should be cleaned of dirt immediately and checked for deformation or damage. If necessary, it should be corrected or replaced in time. Accessories management: The removed accessories should be cleaned and counted in time, and transferred to the upper layer or designated location through the material transfer port to avoid loss or confusion.

[0022] A non-full shear elevator shaft structural column is cast at one time with the main body according to the present invention. In the step S3, the working platform 1 includes a plane plate 2 and a support rod 3. The plane plate 2 is used to provide a construction operation platform for construction personnel. The plane plate 2 is kept at the same horizontal plane as the bottom plate of the building working surface. The support rod 3 is used to support the plane plate 2 so that the plane plate 2 is balanced. The distance between the support rod 3 and the ground is less than the distance between the plane plate 2 and the ground. The support rod 3 includes an oblique support rod 4, a transverse support rod 5 and a vertical support rod 6. One end of the oblique support rod 4 is opposite to the plane plate 2 in the direction of the electric The ladder shaft is connected to one side of the elevator door and the oblique support rod 4 abuts against the inner wall of the elevator shaft, the other end of the oblique support rod 4 is connected to the transverse support rod 5, one end of the transverse support rod 5 is connected to the oblique support rod 4, and the other end of the transverse support rod 5 abuts on the bottom plate of the elevator shaft facing the elevator door. One end of the vertical support rod 6 is connected to the plane plate 2, and the other end of the vertical support rod 6 is connected to the transverse support rod 5. The vertical support rod 6 remains vertical to the bottom plate of the building toward the elevator door side of the elevator shaft. The support rod member 3 maintains a stable state when the construction workers stand on the plane plate 2 through the above-mentioned connection and cooperation relationship.

[0023] By adopting the non-full-shear elevator shaft structural column and main body casting construction method described in the present invention, the working platform 1 is installed at the position of the elevator shaft construction surface of the building structure. Different from the construction process of the prior art, the present invention further reduces the elevator shaft construction process and speeds up the construction progress by installing the working platform 1 and rotating it on each working surface.

[0024] Specifically, the transverse support rods 5 , the vertical support rods 6 and the oblique support rods 4 are mechanically connected, and the support rods 3 abut against the building to improve the balance of the flat panel 2 .

[0025] As a preferred embodiment, based on the above method, further, a telescopic rod 7 is provided on the side of the vertical support rod 6 facing the elevator shaft room, one end of the telescopic rod 7 is connected to the vertical support rod 6, and the other end of the telescopic rod 7 is a free end. The free end of the telescopic rod 7 extends into the elevator shaft room, and the telescopic rod 7 abuts against the crossbeam in the elevator shaft room.

[0026] Specifically, the telescopic rod 7 is mechanically connected to the vertical support rod 6. When the transverse support rod 5 abuts against the bottom plate in the elevator shaft room, it transmits a force to the vertical support rod 6 to the telescopic rod 7, so that the telescopic rod 7 abuts against the top plate or cross beam in the elevator shaft room, further improving the balance of the support rod 3.

[0027] As a preferred embodiment, based on the above method, further, the telescopic rod 7 includes a first telescopic rod 8 and a second telescopic rod 9, one end of the first telescopic rod 8 is connected to the vertical support rod 6, the other end of the first telescopic rod 8 is a free end, one end of the second telescopic rod 9 is connected to the first telescopic rod 8, the other end of the second telescopic rod 9 abuts against the ceiling in the room, the first telescopic rod 8 and the second telescopic rod 9 are connected and cooperated to remain vertical, and the telescopic rod 7 increases the force transmitted by the vertical support rod 6 toward the transverse support rod 5.

[0028] Specifically, the force transmitted from the vertical support rod 6 to the telescopic rod 7 is transmitted from the first telescopic rod 8 to the second telescopic rod 9, so that the second telescopic rod 9 abuts against the indoor ceiling of the elevator shaft. At the same time, when the weight of the flat panel 2 increases toward the opposite side of the elevator shaft, the second telescopic rod 9 can reduce the overturning of the vertical support rod 6 toward the elevator shaft, thereby further improving the balance of the support rod 3.

[0029] As a preferred embodiment, based on the above-mentioned manner, further, the first telescopic rod 8 and the vertical support rod 6 are detachably connected.

[0030] Specifically, the first telescopic rod 8 and the vertical support rod 6 are detachable and can adapt to beams of different widths, thereby enhancing the practicality of the telescopic rod 7. The detachable connection between the first telescopic rod 8 and the vertical support rod 6 can be mechanically connected, bolted, or the like.

[0031] Example 2 like Figures 2 to 5 As shown, a non-full-shear elevator shaft structural column is cast once with the main body in the present invention. On the basis of the above method, further, the transverse support rod 5 includes a first transverse rod 10, a second transverse rod 11 and a third transverse rod 12, one end of the first transverse rod 11 is connected to the oblique support rod 4, the other end of the first transverse rod 10 is connected to one end of the second transverse rod 11, the other end of the second transverse rod 11 is connected to one end of the third transverse rod 12, the other end of the third transverse rod 12 is abutted against the building, the first transverse rod 10, the second transverse rod 11 and the third transverse rod 12 are slidably connected, the second transverse rod 11 is connected to the vertical support rod 6, the transverse support rod 5 has a first matching form and a second matching form, in the first In the mating form, the central axis of the first transverse rod 10, the central axis of the second transverse rod 11 and the central axis of the third transverse rod 12 remain parallel and are in the same straight line. In the second mating form, the central axis of the first transverse rod 10 and the central axis of the third transverse rod 12 remain parallel and are in the same straight line. The central axis of the second transverse rod 11 remains parallel to the central axis of the first transverse rod 10 and the distance from the central axis of the second transverse rod 11 to the building floor is greater than the distance from the central axis of the first transverse rod 10 to the building floor. When the transverse support rod 5 is transformed from the first mating form to the second mating form, the first transverse rod 10 and the third transverse rod 12 apply a force to the second transverse rod 11 to make the second transverse rod 11 vertically displaced on the vertical support rod 6.

[0032] Specifically, during the use of the flat panel 2, material accumulation causes the center of gravity of the flat panel 2 to shift toward the elevator shaft, causing the oblique support rod 4 to transmit a force to the first transverse rod 10, and the first transverse rod 10 transmits a force to the second transverse rod 11. The third transverse rod 12 abuts against the bottom plate of the building so that the third transverse rod 12 transmits a force to the second transverse rod 11. The first transverse rod 10 and the third transverse rod 12 cause the second transverse rod 11 to vertically displace toward the flat panel 2 until the second transverse rod 11 abuts against the vertical support rod 6. The vertical support rod 6 transmits a force to the telescopic rod 7, thereby strengthening the telescopic rod 7 and the building. The force of the top plate abutment further improves the stability of the support rod 3. When the material handling of the flat panel 2 is reduced, the force on the oblique support rod 4 is reduced, and the transverse support rod 5 is transformed from the second matching form to the first matching form, reducing the pressure of the telescopic rod 7 abutting the top plate of the building and the pressure of the third transverse rod 12 abutting the bottom plate of the building, further reducing the damage to the building by the telescopic rod 7 and the third transverse rod 12. At the same time, in the process of the flat panel 2 material being reduced and transported into the room, the vertical displacement of the second transverse rod 11 toward the ground can reduce the force on the transverse support rod 5, further reducing the possibility of the transverse support rod 5 breaking.

[0033] As a preferred embodiment, on the basis of the above method, further, a groove 13 is provided at the connection between the second transverse rod 11 and the vertical support rod 6, and the groove 13 keeps the vertical support rod 6 and the second transverse rod 11 in abutment. In the first matching form, the plane plate 2 is inclined toward the inner side of the elevator shaft room, and in the second matching form, the plane plate 2 and the bottom plate of the elevator shaft room are kept horizontal. When the transverse support rod 5 is transformed from the second matching form to the first matching form, the connection between the plane plate 2 and the vertical support rod 6 produces a vertical displacement, causing the plane plate 2 to tilt, and a gap is maintained between the edge of the plane plate 2 and the vertical building structure of the elevator shaft, and the third transverse rod 12 and the second transverse rod 11 are detachably connected and matched.

[0034] Specifically, the groove 12 reduces the deformation damage of the second transverse rod 11 to the vertical support rod 6 when the transverse support rod 5 is transformed from the first matching form to the second matching form, further improving the service life of the vertical support rod 6, and the groove 13 drives the vertical support rod 6 to move vertically toward the ground when the transverse support rod 5 is transformed from the second matching form to the first matching form, reducing the damage of the telescopic rod 7 to the top plate of the building. At the same time, the vertical support rod 6 moves downward to cause the plane plate 2 to tilt, and the plane plate 2 is smaller than the width of the elevator shaft. The third transverse rod 12 is separable from the second transverse rod 11, and the first telescopic rod 8 is separable from the vertical support rod 6. With the above arrangement, when the plane plate 2 is tilted and the working platform 1 is lifted to the next working surface by a tower crane, the damage of the working platform 1 to the elevator shaft is reduced and the transportation efficiency of the working platform is accelerated, further improving the construction efficiency and shortening the construction cost and construction progress.

[0035] Example 3 like Figures 2 to 5 As shown, the present invention describes a method for constructing a non-full-shear elevator shaft structural column by casting the structural column together with the main body at one time. On the basis of the above method, a baffle 14 is further arranged around the edge of the flat plate 2, and the baffle 14 is arranged toward the side where the construction workers stand. The baffle 14 is used to prevent the material of the flat plate 2 from falling into the elevator shaft.

[0036] Specifically, the baffle 14 can prevent the material on the flat plate 2 from falling into the inner side of the elevator shaft, thereby further enhancing the safety of the working platform during use.

[0037] As a preferred embodiment, based on the above method, further, the baffle 14 uses the connection between the baffle 14 and the flat plate 2 as a rotation axis, and the baffle 14 rotates toward the edge of the flat plate 2 as a rotation direction.

[0038] Specifically, the baffle 14 can be rotated to fall toward one side of the room, which improves the efficiency of construction workers in carrying materials. At the same time, it reduces the safety hazard caused by materials on the flat plate 2 falling into the elevator shaft during the transportation process.

[0039] As a preferred embodiment, based on the above-mentioned method, further, preferably, a hook 15 is provided on the flat plate 2, and the hook 15 is used for connecting with a tower crane for lifting, so as to keep the flat plate 2 stable when the tower crane lifts the working platform 1.

[0040] Specifically, the hook 15 and the flat plate 2 can be fixed by welding, bolt connection or the like.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction method for pouring structural columns of a non-full shear elevator shaft with the main body at one time, characterized in that: The steps include: S1. Confirm the position of the structural column: According to the drawings and the structural layout of the elevator shaft on site, confirm the position of the masonry area that needs to be deepened into the structural column, measure and record the dimensions, and mark the area; S2. Formwork adaptation: According to the detailed area and size confirmed on the drawings and on-site, communicate with the aluminum formwork unit to design the corresponding size template when using aluminum formwork, and cut the corresponding size on-site when using wooden formwork; Carry out the manufacturer's procurement work in advance, determine the elevator model of this project and the reinforcement requirements of its attachment rods, deepen the structural columns of the hoistway and feedback the original structural design to review the stress impact; S3. Work platform construction: The location where the formal elevator is installed in the on-site elevator shaft is an area where it is impossible to stand for construction. A work platform is set up in the area where the formal elevator is installed in the elevator shaft; After the working platform is set up, a scaffolding platform is set up towards the top floor of the building for construction workers to climb and construct; S4. Moving and fixing the working platform: Use a tower crane to move the working platform to the working surface in the elevator shaft and fix it to the next level of the working surface; S5. Construction and formwork installation: After the work platform is set up, the construction personnel are located on the work platform for construction. The formwork is transported to the elevator shaft by a tower crane or by hand. After the reinforcement is tied, the formwork is closed and reinforced. The reinforcement is tied together with the floor structure. The structural column reinforcement is reserved from the bottom plate. The construction process is as follows: install the transverse seam plate when pouring the upper layer of concrete → tie the structural column reinforcement skeleton → trim the structural column lap reinforcement extending from the bottom layer → install the structural column reinforcement skeleton → tie the stirrups at the lap joint → tie the protective layer pad; When assembling the structural column formwork, it is necessary to assemble it according to the formwork assembly diagram and in combination with the number. The cross-sectional width of the structural column should be matched with the width of the standard aluminum formwork plate as much as possible. The height direction is segmented according to the floor height to reduce the joints. The assembly should start from the end of the structural column. The pins do not need to be fully driven before closing. 50% is appropriate. After the other side of the formwork is assembled and closed, all the pins need to be tightened. The special structural column components provided by the manufacturer are used to improve the assembly efficiency. Adjustable steel diagonal braces (angle 45°~60°) are set on both sides of each structural column, and the support point spacing is ≤1.5m; S6. Concrete pouring and maintenance: There is a difference in the grades of concrete between the structural column and the beam and slab. The concrete is poured in a time difference manner. The structural column concrete is poured first, and the low-grade concrete of the beam and slab is poured after the initial setting. The time interval is strictly controlled to avoid the formation of cold joints, and at the same time, ensure that the structural column concrete does not flow into the beam and slab area. Combined with vibration control, the mixing risk is reduced; S7. Dismantling of formwork and working platform: After all concrete pouring of the elevator shaft is completed and the formwork is removed, the working platform is transported to the ground by means of a tower crane, and the dismantling of the working platform is completed on the ground; When dismantling the aluminum formwork of the column, the concrete strength must reach the design allowable value. Under normal circumstances, the column side formwork can be removed 12 hours after the concrete is poured. The removal order is: first remove the diagonal support, then remove the through-wall bolts and other connectors, and finally use a crowbar to pry the formwork apart from the wall. Support rod protection: During the dismantling process, the support rod must not be loosened or collided to avoid affecting the safety of the structure. Formwork cleaning: The removed formwork should be cleaned of dirt immediately and checked for deformation or damage. If necessary, it should be corrected or replaced in time. Accessories management: The removed accessories should be cleaned and counted in time, and transferred to the upper layer or designated location through the material transfer port to avoid loss or confusion.

2. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 1, characterized in that: In step S3, the working platform includes a plane board and a supporting rod, the plane board is used to provide a construction operation platform for construction workers, the plane board and the bottom plate of the building working surface are kept at the same horizontal plane, the supporting rod is used to support the plane board to keep the plane board balanced, the distance between the supporting rod and the ground is less than the distance between the plane board and the ground, the supporting rod includes an oblique supporting rod, a transverse supporting rod and a vertical supporting rod, one end of the oblique supporting rod is connected to the side of the plane board facing the elevator door of the elevator shaft, and the oblique supporting rod The vertical support rod is connected to the inner wall of the elevator shaft, and the other end of the diagonal support rod is connected to the transverse support rod. One end of the transverse support rod is connected to the diagonal support rod. The other end of the transverse support rod is connected to the bottom plate of the elevator shaft facing the elevator door. One end of the vertical support rod is connected to the plane plate, and the other end of the vertical support rod is connected to the transverse support rod. The vertical support rod is kept perpendicular to the bottom plate of the building toward the elevator door of the elevator shaft. The support rod members can maintain a stable state when the construction workers stand on the plane plate through the above-mentioned connection and cooperation relationship.

3. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 2, characterized in that: A telescopic rod is provided on the side of the vertical support rod facing the elevator shaft chamber, one end of the telescopic rod is connected to the vertical support rod, and the other end of the telescopic rod is a free end. The free end of the telescopic rod extends into the elevator shaft chamber, and the telescopic rod abuts against the crossbeam in the elevator shaft chamber.

4. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 3, characterized in that: The telescopic rod includes a first telescopic rod and a second telescopic rod, one end of the first telescopic rod is connected to the vertical support rod, the other end of the first telescopic rod is a free end, one end of the second telescopic rod is connected to the first telescopic rod, the other end of the second telescopic rod is abutted against a ceiling in the room, the first telescopic rod and the second telescopic rod are connected and cooperated to maintain verticality, and the telescopic rod increases the force transmitted by the vertical support rod toward the horizontal support rod.

5. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 4, characterized in that: The first telescopic rod and the vertical support rod are detachably connected.

6. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 5, characterized in that: The transverse support rod comprises a first transverse rod, a second transverse rod and a third transverse rod, one end of the first transverse rod is connected to the oblique support rod, the other end of the first transverse rod is connected to one end of the second transverse rod, the other end of the second transverse rod is connected to one end of the third transverse rod, the other end of the third transverse rod abuts against the building, the first transverse rod, the second transverse rod and the third transverse rod are slidably connected, the second transverse rod is connected to the vertical support rod, the transverse support rod has a first matching form and a second matching form, in the first matching form, the central axis of the first transverse rod, the central axis of the second transverse rod and the central axis of the third transverse rod remain parallel and in the same straight line, in the second matching form, the central axis of the first transverse rod and the central axis of the third transverse rod remain parallel and in the same straight line, the central axis of the second transverse rod and the central axis of the first transverse rod remain parallel and the distance from the central axis of the second transverse rod to the bottom plate of the building is greater than the distance from the central axis of the first transverse rod to the bottom plate of the building, when the transverse support rod is transformed from the first matching form to the second matching form, the first transverse rod and the third transverse rod exert a force on the second transverse rod to make the second transverse rod do vertical displacement on the vertical support rod.

7. A method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 6, characterized in that: A groove is provided at the connection between the second transverse rod and the vertical support rod, and the groove keeps the vertical support rod in abutment with the second transverse rod. In the first matching form, the plane plate is inclined toward the inner side of the elevator shaft room. In the second matching form, the plane plate and the bottom plate in the elevator shaft room remain horizontal. When the transverse support rod is transformed from the second matching form to the first matching form, the connection between the plane plate and the vertical support rod produces a vertical displacement to cause the plane plate to tilt. A gap is maintained between the edge of the plane plate and the vertical building structure of the elevator shaft. The third transverse rod and the second transverse rod are detachably connected and matched.

8. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 7, characterized in that: A baffle is arranged around the edge of the flat plate, the baffle is arranged toward the side where the construction workers stand, and the baffle is used to prevent the material on the flat plate from falling into the elevator shaft.

9. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 8, characterized in that: The baffle plate uses the connection between the baffle plate and the plane plate as a rotation axis, and the baffle plate rotates toward the edge of the plane plate as a rotation direction.

10. A construction method for pouring a non-full shear elevator shaft structural column with the main body at one time according to claim 9, characterized in that: The flat plate is provided with a hook, and the hook is used for connecting with a tower crane for lifting. The flat plate is kept stable when the tower crane lifts the working platform.

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