Winter high-rise building template construction method

Abstract

The invention relates to a winter high-rise building template construction method which comprises the following steps: arranging a liftable thermal insulation system around a building main body, continuing to construct a building main body structure, and reserving a mounting hole in the main body structure; the frame body units are lifted, guide supports are installed at the two layers of installation holes respectively, guide rails are installed on the two layers of guide supports, and supporting devices are installed on the guide supports; the building main body structure continues to be constructed for one layer, the heating formwork is used for erecting the formwork, concrete is poured, steam is introduced into the heating formwork, and heat preservation curing is conducted on the concrete; after the concrete strength of the top plate beam meets the requirement, the formwork is removed, and a guide support is installed at the installation hole; a lifting unit is installed, the frame body unit is lifted by the height of one floor through the lifting unit, a guide rail is installed on the guide support on the uppermost layer, a jacking device is installed on the guide support, and the guide rail is fixed through the jacking device; and repeatedly lifting the liftable thermal insulation system until the construction of the building structure main body is completed.

Description

Technical Field

[0001] The invention relates to a template construction technology, in particular to a winter high-rise building template construction method. Background Art

[0002] For areas with cold winters, carrying out construction projects in winter is a thorny problem faced by engineers, especially for high-rise and super-high-rise buildings. When entering winter construction, many projects under main structure construction are forced to enter winter break due to their large size, high altitude and strong impact from weather, difficulty in insulation and large investment, resulting in a significant extension of the construction period. Construction units and construction units will face huge pressure on the construction period, and rushing to finish the work in the later stage will cause a series of risks such as increased costs and reduced quality.

[0003] Therefore, there is an urgent need for a formwork system construction technology that can provide heating and insulation, so that the main structure of a high-rise building with shear wall structure can be constructed normally in the severe winter, so that the construction period, cost, quality and safety of the project can be under control. Summary of the Invention

[0004] The purpose of the present invention is to provide a winter high-rise building formwork construction method to solve the problem that the main structure of the building cannot be constructed in the cold winter weather.

[0005] The present invention is achieved in this way: a winter high-rise building formwork construction method comprises the following steps.

[0006] a. The main building structure is constructed layer by layer.

[0007] b. When entering the winter construction period, a liftable insulation system is set up around the main body of the building. The liftable insulation system includes a guide support, a guide rail, a frame unit and a lifting unit. The height of the frame unit is greater than the height of a three-story building. A protective insulation board is set on the outside of the frame unit. The guide rail is vertically set on the inside of the frame unit. A sliding frame for sliding connection with the guide rail is set at the end of the guide support, and horizontal support rods are evenly arranged on the guide rail along the height direction; the main structure of the building continues to be constructed, and installation holes for the guide supports are reserved when pouring concrete for the top plate beams of two consecutive layers of the main structure.

[0008] c. Lift the frame unit to the top of the constructed part of the building main body, install guide supports at the two-layer installation holes respectively, and install the guide rails on the two-layer guide supports. Install the top supports on the guide supports, and use the top supports to support the support rods to support the guide rails and the frame unit.

[0009] d. Continue to construct one floor of the main building structure. Use heated formwork with cavities to set up shear wall formwork and top slab formwork, pour concrete for the shear walls and top slab, and introduce steam into the heated formwork with cavities to insulate and maintain the concrete.

[0010] e. When the concrete strength of the top plate beam reaches the requirement, remove the formwork and install the guide support at the installation hole.

[0011] f. Install the lifting unit, use the lifting unit to lift the frame unit to the height of one floor, install the guide rail on the topmost guide support, and install the top support on the guide support to fix the guide rail.

[0012] g. Repeat steps d to f until the main structure of the building is completed.

[0013] Furthermore, in step b, the installation process of the liftable thermal insulation system is as follows: First, lay the first scaffolding board, then install the lower guide rail and the lower vertical pole on the first scaffolding board, install the second scaffolding board on the top of the lower guide rail and the lower vertical pole, install the first protective insulation board on the outside of the first and second scaffolding boards, install the middle guide rail and the middle vertical pole on the second scaffolding board, install the third scaffolding board on the top of the middle guide rail and the middle vertical pole, install the second insulation board on the outside of the second and third scaffolding boards, install the upper guide rail and the upper vertical pole on the third scaffolding board, install the fourth scaffolding board on the top of the upper guide rail and the upper vertical pole, and install the third insulation board on the outside of the third and fourth scaffolding boards.

[0014] Furthermore, the lifting unit includes a fall chain and a steel wire rope. In step f, the fall chain is installed on the guide support of the uppermost layer. The fall chain is connected to the lower part of the frame unit through the steel wire rope, and multiple fall chains are lifted synchronously.

[0015] Furthermore, a material transfer hole is reserved on the frame unit of the liftable insulation system, and a template transfer device is set on the main body of the building structure at the material transfer hole. The template transfer device is lifted synchronously with the liftable insulation system and is used for transferring the heated template between layers.

[0016] Furthermore, the template unloading device includes a fixed support, a sliding frame, a material platform and a lifting device. Two fixed supports are respectively arranged on the continuous multi-layer floor slabs of the building structure main body, a guide frame is arranged on the fixed support, the material platform is arranged on the sliding frame, and two vertical slide rails are arranged on the sliding frame. The two vertical slide rails are respectively slidably connected to multiple guide frames, and a lifting device is arranged on the floor slabs of the building structure main body, and the sliding frame is driven up and down by the lifting device.

[0017] Furthermore, the vertical slide rail is composed of multiple segmented slide rails, and the length of each slide rail is greater than the height of one floor. When the liftable insulation system is lifted to the height of one floor, a fixed support and a new lifting device are installed on the upper floor, the new lifting device is connected to the sliding frame and the sliding frame is lifted to the height of one floor so that it is connected to the newly installed fixed support, and the original fixed support and the original lifting device on the lowest floor are removed.

[0018] Furthermore, the heating template is a steel template, which includes two panels, a partition rib plate located between the two panels, and side rib plates located around the panels. Pulling holes are opened on the panels, and ventilation holes are opened on the partition rib plate and the side rib plates.

[0019] Furthermore, when heat-insulating and curing the concrete, an insulation layer is set up on the top of the liftable insulation system, and the insulation layer is removed when pouring the concrete.

[0020] The present invention adopts a liftable insulation system to insulate the floors of a high-rise building under construction, and can be lifted upward synchronously with the progress of construction. At the same time, steam can be introduced into the heating template with a cavity during construction to insulate and maintain the concrete, thereby quickly improving the concrete strength. The present invention can enable the main structure of a high-rise building with a shear wall structure to be constructed normally in severe winter, thereby improving construction efficiency and keeping the project schedule, cost, quality and safety under control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the liftable thermal insulation system of the present invention.

[0022] Figure 2 yes Figure 1 A partial enlarged view of .

[0023] Figure 3 It is a structural diagram of the template transfer device of the present invention.

[0024] Figure 4 It is a structural diagram of the heating template of the present invention.

[0025] In the figure: 1. Main body of building structure; 2. Guide support; 3. Guide rail; 4. Frame unit; 5. Scaffolding board; 6. Top support; 7. Horizontal support rod; 8. Fixed support; 9. Guide frame; 10. Sliding frame; 11. Vertical slide rail; 12. Material table; 13. Lifting device; 14. Heating formwork; 15. Protective insulation board; 14-1. Panel; 14-2. Side rib plate; 14-3. Partition rib plate; 14-4. Pull hole; 14-5. Vent. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, terms such as "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] like Figure 1 、 Figure 2 As shown, the winter high-rise building formwork construction method of the present invention specifically includes the following steps.

[0029] a. The main building structure is constructed layer by layer.

[0030] b. When entering the winter construction period, a liftable insulation system is set up around the main body of the building. The liftable insulation system includes a guide support 2, a guide rail 3, a frame unit 4 and a lifting unit. The height of the frame unit 4 is greater than the height of a three-story building. A protective insulation board 15 is set on the outside of the frame unit 4. The guide rail 3 is vertically set on the inside of the frame unit 4. A sliding frame 10 for sliding connection with the guide rail 3 is set at the end of the guide support 2, and horizontal support rods 7 are evenly arranged on the guide rail 3 along the height direction; the main structure of the building continues to be constructed, and the installation holes of the guide support 2 are reserved when pouring the top plate beam concrete of two consecutive layers of the main structure.

[0031] The installation process of the liftable insulation system is as follows: First, lay the first scaffolding board 5, then install the lower guide rail 3 and the lower vertical pole on the first scaffolding board 5, install the second scaffolding board 5 on the top of the lower guide rail 3 and the lower vertical pole, install the first protective insulation board 15 on the outside of the first scaffolding board 5 and the second scaffolding board 5, install the middle guide rail 3 and the middle vertical pole on the second scaffolding board 5, install the third scaffolding board 5 on the top of the middle guide rail 3 and the middle vertical pole, install the second insulation board on the outside of the second scaffolding board 5 and the third scaffolding board 5, install the upper guide rail 3 and the upper vertical pole on the third scaffolding board 5, install the fourth scaffolding board 5 on the top of the upper guide rail 3 and the upper vertical pole, and install the third insulation board on the outside of the third scaffolding board 5 and the fourth scaffolding board 5.

[0032] If winter construction begins or is approaching when the main structure of the building is due to begin construction, the liftable insulation system can be installed directly on the ground while the main structure of the building is being constructed at the same time.

[0033] The process of synchronous construction of the liftable insulation system and the main building structure 1 is as follows: First, lay the first scaffolding board 5, then install the lower guide rail 3 and the lower vertical pole on the first scaffolding board 5, install the second scaffolding board 5 on the top of the lower guide rail 3 and the lower vertical pole, install the first protective insulation board 15 on the outside of the first scaffolding board 5 and the second scaffolding board 5, install the first guide support 2 on the top plate of the first layer of the building structure main body 1, and install the top support 6 on the guide support 2, and bear the load through the top support 6, install the middle guide rail 3 and the middle vertical pole on the second scaffolding board 5, and install the middle guide rail 3 and the middle vertical pole on the middle guide rail. A third scaffolding board 5 is installed on the top of the rail 3 and the middle vertical pole, a second insulation board is installed on the outside of the second scaffolding board 5 and the third scaffolding board 5, a second guide support 2 is installed on the top plate of the second layer of the building structure main body 1, and a top support 6 is installed on the guide support 2, the load is borne by the top support 6, the upper guide rail 3 and the upper vertical pole are installed on the third scaffolding board 5, the fourth scaffolding board 5 is installed on the top of the upper guide rail 3 and the upper vertical pole, and the third insulation board is installed on the outside of the third scaffolding board 5 and the fourth scaffolding board 5.

[0034] The two scaffolding boards 5 are butt-connected with bolts, and then placed parallel to the building structure according to the layout dimensions of the plan layout drawing, and fixed horizontally with reinforcement fasteners. The vertical poles are placed according to the layout dimensions of the plan layout drawing, and the first hole at the bottom of the vertical pole is connected to the scaffolding board 5 with a hexagonal bolt with a large washer and nut.

[0035] c. Lift the frame unit 4 to the top of the constructed part of the building main body, install the guide supports 2 at the two-layer installation holes respectively, and install the guide rail 3 on the two-layer guide supports 2, and install the support device 6 on the guide support 2. The support device 6 supports the support rod to support the guide rail 3 and the frame unit 4.

[0036] After checking that the mounting hole position is correct, install the guide support 2 in the mounting hole of the structure with a fully threaded bolt, and add a gasket and two nuts at each end of the bolt; then insert the left and right guide wheels into the guide rail 3, and install the guide wheel frame to the guide wheel frame connecting plate of the guide support 2 with bolts and nuts; then install the adjustable support 6 on the guide support 2.

[0037] After the frame unit 4 is lifted, its lower part is connected to the two layers of guide supports 2 at the same time, which can ensure the stability of the frame unit 4. At the same time, the upper part of the frame unit 4 exceeds the height of one layer of the completed building. The protective insulation board 15 can be used to enclose, windproof and cold-proof the internal construction space, thereby preventing the construction work from being affected by severe cold weather.

[0038] When performing thermal insulation maintenance on concrete, an insulation layer is set up on the top of the liftable insulation system, and the insulation layer is removed when pouring concrete. By setting up an insulation layer on the top of the liftable insulation system to form an insulation shed, the temperature of the concrete after pouring can be further guaranteed.

[0039] d. Continue to construct one floor of the main structure of the building. Use the heated template 14 with a cavity to set up the shear wall template and the top plate template, pour the concrete of the shear wall and the top plate, and pass steam into the heated template 14 with a cavity to insulate and maintain the concrete.

[0040] The heating template 14 is a steel template, such as Figure 4 As shown, the heating template 14 includes two panels 14-1, a partition rib 14-3 located between the two panels 14-1, and side ribs 14-2 located around the panels 14-1. Pulling holes 14-4 are opened on the panels 14-1, and ventilation holes 14-5 are opened on the partition rib 14-3 and the side rib 14-2.

[0041] The heating template 14 is composed of standard plates and corner plates of different specifications, which are assembled and combined into a template that meets the needs of the project, thereby reducing the number of processing operations.

[0042] Steam can enter the inner cavity of the heating template 14 through the vent 14-5, and enter the adjacent heating template 14 through the vent 14-5, so that the high-temperature steam can insulate and maintain the concrete inside the entire template system.

[0043] e. When the concrete strength of the top beam reaches the requirement, remove the formwork and install the guide support 2 at the installation hole.

[0044] f. Install the lifting unit, lift the frame unit 4 by one floor through the lifting unit, install the guide rail 3 on the top guide support 2, and install the top support 6 on the guide support 2, and fix the guide rail 3 by the top support 6.

[0045] The lifting unit includes a fall chain and a steel wire rope. In step f, the fall chain is installed on the uppermost guide support 2. The fall chain is connected to the lower part of the frame unit 4 through the steel wire rope, and multiple fall chains are lifted synchronously.

[0046] g. Repeat steps d to f until the construction of the building structure main body 1 is completed.

[0047] In order to further improve construction efficiency, a material transfer hole is reserved on the frame unit 4 of the liftable insulation system, and a template transfer device is set on the building structure main body 1 at the material transfer hole. The template transfer device is lifted synchronously with the liftable insulation system and is used for transferring the heated template 14 between layers.

[0048] like Figure 3 As shown, the template unloading device includes a fixed support 8, a sliding frame 10, a material platform 12 and a lifting device 13. Two fixed supports 8 are respectively arranged on the continuous multi-layer floor slabs of the building structure main body 1, and a guide frame 9 is arranged on the fixed support 8. The material platform 12 is arranged on the sliding frame 10, and two vertical slide rails 11 are arranged on the sliding frame 10. The two vertical slide rails 11 are respectively slidably connected to multiple guide frames 9. A lifting device 13 is arranged on the floor slab of the building structure main body 1, and the sliding frame 10 is driven up and down by the lifting device 13.

[0049] The vertical slide rail 11 is composed of multiple segmented slide rails, and the length of each slide rail is greater than the height of one floor. When the liftable insulation system is lifted to the height of one floor, a fixed support 8 and a new lifting device 13 are installed on the upper floor, and the new lifting device 13 is connected to the sliding frame 10 and the sliding frame 10 is lifted to the height of one floor so that it is connected to the newly installed fixed support 8, and the original fixed support 8 and the original lifting device 13 on the lowest floor are removed.

[0050] The present invention adopts a liftable insulation system to insulate the floors of a high-rise building under construction, and can be lifted upward synchronously with the progress of construction. At the same time, steam can be introduced into the heating template 14 with a cavity during construction to insulate and maintain the concrete, thereby quickly improving the concrete strength. The present invention can enable the main structure of a high-rise building with a shear wall structure to be constructed normally in severe winter, improve construction efficiency, and keep the construction period, cost, quality, and safety of the project under control.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A winter high-rise building formwork construction method, characterized in that: The following steps are involved: a. The main structure of the building is constructed layer by layer; b. When entering the winter construction period, a liftable insulation system is set around the main body of the building. The liftable insulation system includes a guide support, a guide rail, a frame unit and a lifting unit. The height of the frame unit is greater than the height of a three-story building. A protective insulation board is set on the outside of the frame unit. The guide rail is vertically set on the inside of the frame unit. A sliding frame for sliding connection with the guide rail is set at the end of the guide support. Horizontal support rods are evenly set on the guide rail along the height direction; the main structure of the building continues to be constructed, and the installation holes of the guide support are reserved when pouring the top plate beam concrete of two consecutive main structures; c. Lift the frame unit to the top of the constructed part of the main building, install guide supports at the two-layer installation holes respectively, install the guide rails on the two-layer guide supports, install the top support on the guide supports, and use the top support to support the support rod to support the guide rails and the frame unit; d. The main structure of the building continues to be constructed for one floor. The shear wall formwork and the top plate formwork are set up using the heated formwork with cavities, the concrete of the shear wall and the top plate is poured, and steam is introduced into the heated formwork with cavities to insulate and maintain the concrete; e. When the concrete strength of the top beam reaches the requirement, remove the formwork and install the guide support at the installation hole; f. Install the lifting unit, lift the frame unit to the height of one floor through the lifting unit, install the guide rail on the guide support on the uppermost floor, and install the top support on the guide support to fix the guide rail by the top support; g. Repeat steps d to f until the main body of the building structure is completed.

2. The winter high-rise building formwork construction method according to claim 1 is characterized in that: In step b, the installation process of the liftable insulation system is as follows: First, lay the first scaffolding board, then install the lower guide rail and the lower vertical pole on the first scaffolding board, install the second scaffolding board on the top of the lower guide rail and the lower vertical pole, install the first protective insulation board on the outside of the lower vertical pole, install the middle guide rail and the middle vertical pole on the second scaffolding board, install the third scaffolding board on the top of the middle guide rail and the middle vertical pole, install the second insulation board on the outside of the middle vertical pole, install the upper guide rail and the upper vertical pole on the third scaffolding board, install the fourth scaffolding board on the upper part of the upper guide rail and the upper vertical pole, and install the third insulation board on the outside of the upper vertical pole.

3. The winter high-rise building formwork construction method according to claim 1 is characterized in that: The lifting unit includes a fall chain and a steel wire rope. In step f, the fall chain is installed on the uppermost guide support. The fall chain is connected to the lower part of the frame unit through the steel wire rope, and multiple fall chains are lifted synchronously.

4. The winter high-rise building formwork construction method according to claim 1 is characterized in that: A material transfer hole is reserved on the frame unit of the liftable thermal insulation system, and a template transfer device is arranged on the main body of the building structure at the material transfer hole. The template transfer device is lifted synchronously with the liftable thermal insulation system and is used for transferring the heating template between layers.

5. The winter high-rise building formwork construction method according to claim 4 is characterized in that: The template unloading device includes a fixed support, a sliding frame, a material platform and a lifting device. Two fixed supports are respectively arranged on the continuous multi-layer floor slabs of the building structure main body, and a guide frame is arranged on the fixed supports. The material platform is arranged on the sliding frame, and two vertical slide rails are arranged on the sliding frame. The two vertical slide rails are respectively slidably connected to multiple guide frames. A lifting device is arranged on the floor slab of the building structure main body, and the sliding frame is driven to move up and down by the lifting device.

6. The winter high-rise building formwork construction method according to claim 5 is characterized in that: The vertical slide rail is composed of multiple section slide rails, and the length of each section slide rail is greater than the height of one floor. When the liftable insulation system is lifted to the height of one floor, a fixed support and a new lifting device are installed on the upper floor, the new lifting device is connected to the sliding frame and the sliding frame is lifted to the height of one floor so that it is connected to the newly installed fixed support, and the original fixed support and the original lifting device on the lowest floor are removed.

7. The winter high-rise building formwork construction method according to claim 1 is characterized in that: The heating template is a steel template, which includes two panels, a rib plate between the two panels, and side rib plates around the panels. The panels are provided with pulling holes, and the rib plates and side rib plates are provided with ventilation holes.

8. The winter high-rise building formwork construction method according to claim 1 is characterized in that: When heat-insulating and curing concrete, a heat-insulating layer is set up on the top of the liftable heat-insulating system, and the heat-insulating layer is removed when pouring concrete.

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