Suspended lifting type horizontal pushing formwork system suitable for reverse building method construction

Abstract

The utility model discloses a suspension lifting type horizontal pushing formwork system suitable for reverse building method construction, which comprises a plurality of upper horizontal steel beams and a suspension platform connected with the upper horizontal steel beams in a suspension mode through suspension rods, and the suspension platform is located below the elevation of a lower floor slab to be constructed. The suspension sliding rails are connected to the upper horizontal steel beams through lifting devices, the lifting devices are vertically connected to the upper horizontal steel beams, the suspension sliding rails are located between a lower floor slab to be constructed and the suspension platform, and the lifting devices and the suspension sliding rails connected with the lifting devices form a suspension lifting subsystem; the hanging platform is connected to the hanging sliding rail in a sliding mode, the hanging platform is a horizontal pushing subsystem, the framed bent is arranged on the hanging platform in a supporting mode, and the top formwork is arranged on the framed bent. Construction of a concrete cushion layer is replaced, repeated building of a suspension platform is avoided, cost is reduced, construction efficiency of underground floor slabs is improved, earthwork overexcavation depth is reduced, foundation pit deformation control is facilitated, and safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a suspended lifting and pushing formwork system suitable for reverse construction. Background Technology

[0002] In reverse construction, the upper floor slab is constructed first, followed by the lower floor slab. When constructing the floor slabs below the top floor slab, the earthwork needs to be over-excavated to a certain depth to construct a concrete foundation. Then, a short formwork of 1.5–2m is erected on the foundation for reinforcement binding and concrete pouring to form the floor slab. During foundation construction, a large amount of concrete is consumed, increasing material and labor costs, and the flatness of the foundation needs to be controlled. Furthermore, the over-excavation depth before the short formwork is erected is detrimental to controlling foundation pit deformation. Utility Model Content

[0003] The purpose of this invention is to provide a suspended lifting and pushing formwork system suitable for reverse construction, so as to solve the problems of high material cost, high labor cost, high flatness requirements of the concrete subbase, and large over-excavation depth that are not conducive to the control of foundation pit deformation when constructing floor slabs by pouring concrete subbase in the traditional reverse construction method.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a suspended lifting and horizontal pushing formwork system suitable for reverse construction, comprising multiple parallel horizontal steel beams spaced apart on the upper floor slab, a suspended platform suspended below each of the upper horizontal steel beams by multiple detachably connected rods passing through the upper floor slab, the suspended platform being located below the elevation of the lower floor slab to be constructed; a suspended slide rail vertically connected to each of the upper horizontal steel beams by a lifting device, the lifting device being vertically connected to the upper horizontal steel beams by a connector passing through the upper floor slab, the suspended slide rail being located between the lower floor slab to be constructed and the suspended platform, the lifting device and the connected suspended slide rail constituting a suspended lifting subsystem; when the rods are removed or disconnected, the suspended platform is slidably connected to the suspended slide rail, the suspended platform being a horizontal pushing subsystem, a frame supported on the suspended platform, and a top formwork set on the frame.

[0005] Furthermore, the suspended lifting and pushing formwork system for reverse construction provided by this utility model includes a suspended platform comprising multiple lower horizontal steel beams vertically connected by multiple detachably connected suspension rods, multiple sliders slidably connected to each of the suspended rails, connectors suspended between each slider and the corresponding lower horizontal steel beam, multiple longitudinal joists vertically arranged on each of the lower horizontal steel beams, multiple transverse joists vertically arranged on each of the longitudinal joists, several wooden blocks placed on each of the transverse joists, and floor slab formwork laid on the wooden blocks.

[0006] Furthermore, in the suspended lifting type flat push formwork system suitable for reverse construction provided by this utility model, the slider is connected to the connector through a suspension structure.

[0007] Furthermore, in the suspended lifting and pushing formwork system suitable for reverse construction provided by this utility model, the connecting component is a telescopic component.

[0008] Furthermore, in the suspended lifting and pushing formwork system suitable for reverse construction provided by this utility model, the connecting component is a steel wire rope.

[0009] Furthermore, the suspended lifting type flat push formwork system for reverse construction provided by this utility model has the suspension rod passing through the suspension slide rail and connected to the lower horizontal steel beam.

[0010] Furthermore, the suspended lifting type flat push formwork system suitable for reverse construction provided by this utility model has a hoist lifting device.

[0011] Furthermore, in the suspended lifting and pushing formwork system suitable for reverse construction provided by this utility model, the chain of the hoist is connected to the suspension slide rail by a fixing member.

[0012] Furthermore, the suspended lifting type flat push formwork system for reverse construction provided by this utility model has a suspension rod consisting of a threaded upper rod and a lower rod, with the threaded connection of the upper and lower rods located between the lower floor slab to be constructed and the floor slab formwork.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model provides a suspended lifting type horizontal pushing formwork system suitable for reverse construction. It uses a suspended platform as the supporting foundation for the scaffolding, replacing the concrete foundation. Floor slab formwork is then installed on the scaffolding for construction of the lower floor slab within the specified horizontal area. After the lower floor slab construction in the specified horizontal area is completed, the scaffolding and floor slab formwork are removed. The suspended platform, acting as a horizontal pushing subsystem, is then moved horizontally to the next horizontal area via a slider sliding on a suspended rail. After connecting the hangers, re-erecting the scaffolding and floor slab formwork, construction of the lower floor slab in the next horizontal area is then carried out. This process is repeated. The ring-driven horizontal displacement subsystem completes the overall construction of the lower floor slab within the foundation pit area. This eliminates the need for a concrete foundation layer before the lower floor slab construction, saving on concrete material costs and labor costs associated with pouring the concrete foundation. It also eliminates the need to control the flatness of the concrete foundation and precisely control the flatness of the excavated earthwork, thus improving the construction efficiency of the lower floor slab. Furthermore, the absence of a concrete foundation layer reduces the over-excavation depth before the lower floor slab construction, facilitating foundation pit deformation control and ensuring the safety of the reverse construction method for the lower floor slab within the foundation pit. After the current lower floor slab construction is completed, the suspension lifting subsystem lowers the suspended rails and platform below the elevation of the next floor slab to be constructed, enabling rapid and low-cost construction of intermediate floor slabs between the top and bottom floors. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the elevation structure of a suspended lifting and pushing formwork system suitable for reverse construction.

[0016] Figure 2 This is a facade structural diagram showing the dismantled state of the scaffolding and disconnected state of the suspended lifting and pushing formwork system after the completion of a horizontal section of the lower floor slab.

[0017] Figure 3 This is a schematic diagram of the elevation structure of the horizontal section to be constructed in the next horizontal area of ​​the suspended lifting type formwork system.

[0018] Figure 4 This is a schematic diagram of the process of connecting the suspension rods to the horizontal push subsystem of the suspended lifting horizontal push formwork system after horizontal movement.

[0019] Figure 5 This is a schematic diagram of the process of installing the frame and top template on the translated push subsystem;

[0020] Figure 6 This is a schematic diagram illustrating the process of constructing the lower floor slab between the top formwork and the floor slab formwork after the formwork has been moved.

[0021] Figure 7This is a schematic diagram of the process by which the horizontal push subsystem is lowered to a floor level below the next floor slab elevation via the suspension lifting subsystem.

[0022] Figure 8 This is a schematic diagram illustrating the process of installing the upper horizontal steel beam and the connecting rods between it and the lower horizontal steel beam.

[0023] Figure 9 This is a schematic diagram of the process of erecting the scaffolding and top formwork on the flat-push subsystem;

[0024] Figure 10 This is a schematic diagram illustrating the process of constructing the lower floor slab in the horizontal section between the floor slab formwork and the top formwork.

[0025] As shown in the figure:

[0026] 1. Upper floor slab; 2. Lower floor slab;

[0027] 100. Suspended lifting type flat push formwork system; 110. Upper horizontal steel beam; 120. Hanging rod; 121. Upper rod; 122. Lower rod; 130. Suspended platform; 131. Lower horizontal steel beam; 132. Longitudinal keel; 133. Transverse keel; 134. Timber; 135. Flat formwork; 136. Sliding block; 137. Hook; 138. Connector; 140. Lifting device; 141. Lifting rope; 142. Fixture; 150. Suspension rail; 160. Frame; 170. Floor slab formwork. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0029] Please refer to Figure 1This utility model provides a suspended lifting type flat-push formwork system 100 suitable for reverse construction, including multiple parallel horizontal steel beams 110 arranged at intervals on the upper floor slab 1, and a suspension platform 130 suspended below each of the upper horizontal steel beams 110 through multiple detachably connected suspension rods 120 passing through the upper floor slab. The suspension platform 130 is located below the elevation of the lower floor slab 2 to be constructed, and is vertically connected to the suspension rails 150 on each of the upper horizontal steel beams 110 by a lifting device 140. The lifting device 140 is connected by... The connector 138 passes through the upper floor slab 1 and is vertically connected to the upper horizontal steel beam 110. The suspension rail 150 is located between the lower floor slab 2 to be constructed and the suspension platform 130. The lifting device 140 and the suspension rail 150 connected thereto constitute a suspended lifting subsystem. When the hanger 120 is removed or disconnected, the suspension platform 130 is slidably connected to the suspension rail 150. The suspension platform 150 is a flat push subsystem. The frame 160 is supported on the suspension platform 150, and the floor slab formwork 170 is set on the frame 160.

[0030] Please refer to Figures 1 to 10 The suspended lifting and horizontal pushing formwork system 100 provided in this embodiment of the utility model, suitable for reverse construction, uses a suspended platform 130 as the supporting foundation of the frame 160, replacing the concrete pad. Then, floor slab formwork 170 is set on the frame 160 for the construction of the lower floor slab 2 within the horizontal area. Figure 1 As shown; after the lower floor slab 2 in this horizontal area is completed, the scaffolding 160 and floor slab formwork 170 are removed. The suspended platform 130, which serves as the horizontal pusher subsystem, is then moved horizontally to the next horizontal area via the slider 136 sliding horizontally on the suspended slide rail 150. Figures 2 to 3 As shown; after connecting the hanger 120, re-erecting the scaffolding 160 and the floor slab formwork 170, proceed with the construction of the lower floor slab 2 in the next horizontal area, as follows. Figures 4 to 6 As shown; the translation of the cyclical push subsystem completes the overall construction of the lower floor slab 2 within the foundation pit area; there is no need to construct a concrete cushion layer before the construction of the lower floor slab 2, saving concrete material costs, reducing labor costs for pouring the concrete cushion layer, eliminating the need to control the flatness of the concrete cushion layer, and eliminating the need to precisely control the flatness of the earthwork excavation, thus improving the construction efficiency of the lower floor slab 2. Since no concrete cushion layer is poured, the over-excavation depth of the earthwork before the construction of the lower floor slab 2 is also reduced, which is beneficial for controlling the deformation of the foundation pit and ensuring the safety of the reverse construction method for the lower floor slab 2 within the foundation pit. After the current lower floor slab 2 construction is completed, the lifting device 140 of the suspension lifting subsystem controls the suspension rail 150 and its suspended platform to descend below the elevation of the next floor slab to be constructed, and the construction of the next floor slab begins. Figures 7 to 10As shown, this allows for rapid and low-cost construction of intermediate floor slabs between the top and bottom floor slabs.

[0031] Please refer to this carefully. Figure 1 This utility model provides a suspended lifting type flat-push formwork system 100 suitable for reverse construction. The suspended platform 150 includes multiple lower horizontal steel beams 131 vertically connected by multiple detachably connected suspension rods 120, multiple sliders 136 slidably connected to each of the suspension rails 150, connectors 138 suspended between each slider 136 and the corresponding lower horizontal steel beam 131, multiple longitudinal joists 132 vertically arranged on each of the lower horizontal steel beams 131, multiple transverse joists 133 vertically arranged on each of the longitudinal joists 132, several wooden blocks 134 placed on each of the transverse joists 133, and a flat formwork 135 laid on the wooden blocks 134. The sliders 136 can be automatically controlled sliding trolleys or manually controlled sliders; for easy dismantling later, the sliders 136 can be connected to the connectors 138 via a suspension mechanism 137. The automatically controlled sliding trolley can be program-controlled or remotely controlled. The planar formwork 135 can be used as the bottom formwork for the lowest elevation of the beams in the lower floor slab 2, in which case there is no scaffolding 160 at the beam. The connector 138 can be a wire rope, a vertical rod, or a telescopic rod, or other vertically adjustable component. The connector 138 ensures that the lower horizontal steel beam 131 can be suspended when the upper and lower rods 121 and 122 of the suspension rod 120 are disconnected, so as to ensure that the lower horizontal steel beam 131 and the suspended platform 130 can move horizontally in a reliable connected state. When the connector 138 is a wire rope or a telescopic rod, the suspension height of the lower horizontal steel beam 131 can be adjusted, which facilitates smooth assembly and disassembly.

[0032] Please refer to Figure 1 To ensure the stability of the suspended slide rail 150, this embodiment of the invention provides a suspended lifting and pushing formwork system 100 suitable for reverse construction, in which the suspension rod 120 passes through the suspension slide rail 150 and connects to the lower horizontal steel beam 131. The suspension rod 120 restricts the displacement of the suspension slide rail 150, thereby improving the stability of the suspended slide rail 150.

[0033] Please refer to Figure 1To achieve lifting control of the suspended slide rail 150 and its connected horizontal pushing subsystem, this utility model provides a suspended lifting horizontal pushing formwork system 100 suitable for reverse construction. The lifting device 140 can be a hoist or a wire rope lifting controller. The figure illustrates a wire rope lifting controller, whose lifting rope 141 connects to the suspended slide rail 150. To ensure the reliability of the connection between the lifting rope 141 and the suspended slide rail 150, the rope 141 can be connected to the suspended slide rail 150 via a fixing member 142. When the lifting device 140 is a hoist, one end of the chain on the hoist is connected to the suspended slide rail 150, and the other end is connected to the upper horizontal steel beam 110.

[0034] Please refer to Figures 2 to 3 In order to disconnect the connection between the hanger 120 and the lower horizontal steel beam 131 before the horizontal push subsystem is moved, and to facilitate the disassembly and assembly of the hanger 120, the suspended lifting type horizontal push formwork system 100 suitable for reverse construction provided in this utility model embodiment can be a threaded upper rod 121 and a lower rod 122, and the threaded connection of the upper and lower rods 122 is located between the lower floor slab 2 to be constructed and the flat formwork 135.

[0035] Please refer to Figures 1 to 10 The suspended lifting and pushing formwork system 100 provided in this embodiment of the utility model, which is suitable for reverse construction, can eliminate the need for a concrete pad for short formwork used in the formation of multi-story underground slabs, greatly saving concrete usage, eliminating the generation of concrete waste, and eliminating noise and dust pollution during the removal of the concrete pad. It can also reduce the repeated erection of the suspended platform for short formwork in most reverse construction of underground slabs, reduce labor and material input, lower costs, facilitate the construction of the suspended platform, and improve the construction efficiency of the suspended platform.

[0036] The suspended lifting and horizontal pushing formwork system 100 provided in this embodiment of the utility model, suitable for reverse construction, is divided into upper and lower parts by a suspension rail 150. After the construction of the current floor area is completed, the horizontal pushing subsystem can be pushed to the adjacent construction section by a slider installed on the suspension rail 150. After the scaffolding and top formwork are erected, the floor slab in the area after the horizontal movement is constructed. After the construction of all floor slabs on the current floor is completed, the horizontal pushing subsystem is lowered to the next floor for construction of the next floor slab, and so on. After the final intermediate floor slab is completed, the subsystem is dismantled to construct the basement floor slab.

[0037] The suspended lifting and pushing formwork system 100 provided in this embodiment of the utility model is suitable for the construction of intermediate floor slabs between the top and bottom slabs of a basement. It eliminates the need for pouring concrete cushion layers and reduces the erection height and repeated assembly and disassembly of short formwork supports, thereby reducing construction costs. By using a lower horizontal steel beam 131 to replace the traditional concrete cushion layer as the foundation for the floor slab formwork system, the construction efficiency of the underground floor slab is improved. The lower horizontal steel beam 131 is in contact with the excavation surface below, and there is no need to precisely control the elevation and flatness of the soil during the excavation process, further improving the construction efficiency of the floor slab.

[0038] This utility model is not limited to the specific embodiments described above. Obviously, the embodiments described above are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model. Those skilled in the art can make other levels of modifications and variations to this utility model. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model, this utility model also intends to include these modifications and variations.

Claims

1. A suspended and lifted flat push formwork system suitable for top-down construction, characterized in that, The upper horizontal steel beams are arranged in parallel and spaced on the upper floor, the suspension platform is suspended below each of the upper horizontal steel beams by a plurality of detachable connecting suspender rods, the suspension platform is located below the elevation of the lower floor to be constructed, the suspension slide rail is vertically connected to each of the upper horizontal steel beams by a lifting device, the lifting device is vertically connected to the upper horizontal steel beam by a connecting member, the suspension slide rail is located between the lower floor to be constructed and the suspension platform, the lifting device and the suspension slide rail connected thereto form a suspension lifting subsystem, when the suspender rods are removed or disconnected, the suspension platform is slidingly connected to the suspension slide rail, the suspension platform is a horizontal pushing subsystem, the bent frame is supported on the suspension platform, and the top formwork is arranged on the bent frame.

2. The suspended and lifted flat push formwork system suitable for top-down construction method according to claim 1, wherein, The suspension platform comprises a plurality of lower horizontal steel beams which are vertically connected by a plurality of detachable connecting suspender rods, a plurality of sliding blocks which are slidingly connected to each of the suspension slide rails, a connecting member which is suspendedly connected to each of the sliding blocks and the lower horizontal steel beam at the corresponding position, a plurality of longitudinal keels which are vertically arranged on each of the lower horizontal steel beams, a plurality of transverse keels which are vertically arranged on each of the longitudinal keels, a plurality of wooden blocks which are arranged on each of the transverse keels, and a floor formwork which is arranged on the wooden blocks.

3. The suspended and lifted flat push template system suitable for top-down construction method according to claim 2, wherein, The sliding block is connected to the connecting member by a lifting structure.

4. The suspended and lifted flat push template system suitable for top-down construction method according to claim 2, wherein, The connecting member is a telescopic member.

5. The suspended and lifted flat push template system suitable for top-down construction method according to claim 2, wherein, The connecting member is a steel wire rope.

6. The suspended and lifted flat push template system suitable for top-down construction method according to claim 1, wherein, The suspender rod is connected to the lower horizontal steel beam through the suspension slide rail.

7. The suspended and lifted flat push template system suitable for top-down construction according to claim 1, wherein, The lifting device is a chain hoist.

8. The suspended and lifted flat push template system suitable for top-down construction method according to claim 7, wherein, The chain of the chain hoist is connected to the suspension slide rail by a fixing member.

9. The suspended and lifted flat push template system suitable for top-down construction method according to claim 1, wherein, The suspender rod is a threaded upper rod and a threaded lower rod, and the threaded connection position of the upper rod and the lower rod is located between the lower floor to be constructed and the floor formwork.

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