Top frame system at tail end of supporting beam and cantilever beam construction formwork

Abstract

The utility model discloses a top frame system at the tail end of a supporting beam and a cantilever beam construction formwork, the top frame system comprises a front top frame and a back top frame, the front top frame is located above the joint of the supporting beam and a floor, the upper end of the front top frame abuts against the upper floor, and the lower end of the front top frame abuts against the supporting beam; the jacking frame is located below the joint of the supporting beam and the floor, the upper end of the jacking frame abuts against the floor connected with the supporting beam, and the lower end of the jacking frame abuts against the lower floor. The supporting area of the back-jacking frame is not smaller than that of the front-jacking frame. The front jacking frame and the back jacking frame are arranged above and below the joint of the supporting beam and the floor slab, so that the stability and the safety in the construction process are improved. The front jacking frame directly bears the vertical load of the cantilever part of the cantilever beam, and the back jacking frame provides additional supporting force, so that the whole structure is kept stable in the construction process.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever beam construction, and more specifically, to a top frame system for supporting the tail end of a beam and a cantilever beam construction template. Background Art

[0002] In modern building construction, cantilever beams are a common building structural element, and their design and construction are of great significance to the safety and stability of the entire building. However, since cantilever beams usually extend beyond the main body of the building, their operation during construction becomes complicated. Especially when a climbing frame system is used for the main construction of the building, the extended part of the cantilever beam often becomes an obstacle for the climbing frame to climb. Therefore, in order to ensure the construction progress and work safety, the construction team usually casts the cantilever beams for the second time after the main building is completed.

[0003] The secondary pouring requires the construction of pouring formwork and formwork support to ensure the smooth progress of the pouring process. The pouring formwork and formwork support are set at the cantilevered part of the support beam. The support beam is connected to the main body of the building. The pouring formwork and formwork support are heavy, which makes the load on the support beam heavy. The support beam and the main body of the building are connected by bolts or wire ropes. The stress point at the connection position is small and easy to loosen, causing the support beam to tilt, affecting the stability and safety of the pouring formwork and formwork support.

[0004] The above shortcomings need to be improved. Utility Model Content

[0005] In order to solve or alleviate the problem in the above-mentioned prior art that the stress point at the connection between the support beam and the building body is small and easy to loosen, thereby causing the support beam to tilt and affecting the stability and safety of the casting formwork and the formwork support, the utility model provides a top frame system at the tail end of the support beam and a cantilever beam construction formwork.

[0006] The technical solution of the utility model is as follows:

[0007] A top frame system for the rear end of a supporting beam, comprising a main top frame and a return top frame, wherein the main top frame is located above the connection between the supporting beam and the floor slab, the upper end of the main top frame abuts the upper floor slab, and the lower end of the main top frame abuts the supporting beam; the return top frame is located below the connection between the supporting beam and the floor slab, the upper end of the return top frame abuts the floor slab connected to the supporting beam, and the lower end of the return top frame abuts the lower floor slab; the supporting area of ​​the return top frame is not smaller than the supporting area of ​​the main top frame.

[0008] Furthermore, the positive top frame is close to the first end of the support beam, which is an end away from the cantilevered portion of the support beam, and the first end of the return top frame is aligned with the first end of the positive top frame.

[0009] Furthermore, the main frame and the return frame both include vertical poles, horizontal poles and longitudinal poles, the vertical poles, the horizontal poles and the longitudinal poles are connected by connecting buckles, and the vertical poles of the main frame are aligned with the vertical poles of the return frame.

[0010] Furthermore, the vertical bars, horizontal bars and longitudinal bars of the main frame and the return frame are evenly arranged.

[0011] Furthermore, the spacing between the first end uprights of the main frame and the return frame is smaller than the spacing between the second end uprights.

[0012] Furthermore, a first adjusting member is provided on the top of the main frame, and the first adjusting member is used to adjust the length of the vertical poles of the main frame so that the two ends of the vertical poles of the main frame are tightly pressed against each other.

[0013] Furthermore, the first adjusting member includes a supporting block, a screw connected to the supporting block, and an adjusting block threadedly connected to the screw, the top of the supporting block contacts the upper floor, the bottom of the screw is inserted into the vertical pole, and the adjusting block abuts against the top of the vertical pole.

[0014] Furthermore, a limit seat is arranged at the bottom of the main frame, and a longitudinal connecting piece is arranged at the bottom of the limit seat, and the longitudinal connecting piece is connected to the same row of vertical poles of the main frame.

[0015] Furthermore, the longitudinal connecting member includes a supporting member, a reinforcing member is arranged inside the supporting member, and the supporting member and the reinforcing member are cross-armed on the supporting beam.

[0016] Furthermore, the support member is a channel steel, the opening of the channel steel is facing, and the reinforcement member is a steel pipe, and two steel pipes are arranged in the channel steel.

[0017] Furthermore, a second adjusting member is provided on the top of the return frame, and the second adjusting member is used to adjust the length of the vertical rod of the return frame so that the two ends of the vertical rod of the return frame are tightly pressed.

[0018] A cantilever beam construction template comprises the above-mentioned top frame system at the rear end of the supporting beam.

[0019] Furthermore, the cantilever beam construction formwork includes a supporting beam, which includes a plurality of cantilevered main beams. The cantilevered main beams include a connecting portion connected to the main building body and a supporting portion extending out of the main building body for supporting the formwork bracket. A height adjusting member is provided at the bottom of the connecting portion, and the height adjusting member is used to raise the height of the cantilevered main beam so that the bottom elevation of the supporting portion is not lower than the top elevation of the balcony inverted beam.

[0020] Furthermore, the supporting portion of the cantilevered main beam is provided with a longitudinal connecting beam, and the longitudinal connecting beam is used to connect each of the cantilevered main beams and support the formwork support.

[0021] Furthermore, a plurality of first connecting members are provided on the connecting portion, and the first connecting members penetrate and connect the supporting portion, the adjusting member and the floor slab of the building body.

[0022] Furthermore, a second connecting member is provided on the supporting portion, and the second connecting member connects the supporting portion and an upper cross beam of the building body.

[0023] Furthermore, the second connecting member is a steel wire rope.

[0024] The utility model according to the above scheme has the following beneficial effects:

[0025] 1. The utility model significantly improves the stability and safety during construction by arranging a top frame and a return frame above and below the connection between the support beam and the floor slab. The top frame directly bears the vertical load of the cantilevered part of the cantilever beam, while the return frame provides additional support to ensure that the entire structure remains stable during construction. The top frame and the return frame effectively disperse the load at the connection of the support beam, reduce the local stress concentration of the support beam, and thus reduce the risk of tilting or breaking of the support beam.

[0026] 2. The utility model adjusts the height of the cantilevered main beam through a height adjusting member so that the bottom elevation of the supporting part is not lower than the top elevation of the balcony inverted beam, thereby avoiding direct pressure on the balcony structure by the casting formwork, formwork support and concrete slurry, which not only ensures the quality of the cantilever beam casting, but also ensures the safety and stability of the balcony structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the top frame in Example 1 of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the top return frame in Example 1 of the utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the utility model when the first embodiment is applied;

[0031] Figure 4 for Figure 3 A magnified view of the structure at center;

[0032] Figure 5This is a schematic diagram of the structure of Example 2 of the utility model.

[0033] Among them, the reference numerals in the figure are: 1. main frame; 101. vertical pole; 102. horizontal pole; 103. longitudinal pole; 104. first adjusting member; 105. limiting seat; 106. longitudinal connecting member; 107. supporting member; 108. reinforcing member; 2. return frame; 201. second adjusting member; 3. supporting beam; 301. cantilevered main beam; 302. height adjusting member; 303. longitudinal connecting beam; 304. first connecting member; 305. second connecting member; 4. formwork support; 5. casting formwork; 6. building main body; 7. cantilever beam. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.

[0035] It should be noted that when a component is referred to as being "fixed" or "set" or "connected" to another component, it may be located directly or indirectly on the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and should not be construed as limitations on the present technical solution. The terms "first", "second", etc. are only used for the convenience of description and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0036] Example 1

[0037] like Figures 1 to 3 As shown, a top frame system for the tail end of a supporting beam described in an embodiment of the utility model includes a main top frame 1 and a return top frame 2. The main top frame 1 is located above the connection between the supporting beam 3 and the floor slab, the upper end of the main top frame 1 abuts the upper floor slab, and the lower end of the main top frame 1 abuts the supporting beam 3; the return top frame 2 is located below the connection between the supporting beam 3 and the floor slab, the upper end of the return top frame 2 abuts the floor slab connected to the supporting beam 3, and the lower end of the return top frame 2 abuts the lower floor slab; the supporting area of ​​the return top frame 2 is not smaller than the supporting area of ​​the main top frame 1.

[0038] During the construction of the cantilever beam 7, the connection position between the support beam 3 and the floor slab is first determined, and the main frame 1 and the return frame 2 are respectively arranged above and below the main frame 1. The main frame 1 is arranged directly above the connection between the support beam 3 and the floor slab, with its upper end tightly abutting against the upper floor slab and its lower end connecting with the support beam 3, so that the main frame 1 can bear the vertical load from the cantilevered part of the cantilever beam 7. Next, the return frame 2 is arranged below the connection between the support beam 3 and the floor slab, with its upper end abutting against the floor slab connected to the support beam 3 and its lower end connecting with the lower floor slab. The return frame 2 supports the floor slab connected to the support beam 3 through the lower floor slab, shares the load of the connected floor slab through the lower floor slab, reduces the deformation of the floor slab connected to the support beam 3, and thus indirectly maintains the stability of the support beam 3. In addition, the support area of ​​the return frame 2 is not less than the support area of ​​the main frame 1, and the support area is larger, so as to ensure that the return frame 2 can provide sufficient support force during the construction of the cantilever beam 7 to prevent the support beam 3 from tilting or displacement.

[0039] In this embodiment, by arranging the main frame 1 and the return frame 2 above and below the connection between the support beam 3 and the floor slab, the stability and safety during the construction process are significantly improved. The main frame 1 directly bears the vertical load of the cantilevered part of the cantilever beam 7, while the return frame 2 provides additional support force to ensure that the entire structure remains stable during the construction process. The main frame 1 and the return frame 2 effectively disperse the load at the connection of the support beam 3, reduce the local stress concentration of the support beam 3, and thus reduce the risk of tilting or breaking of the support beam 3. At the same time, since the support area of ​​the return frame 2 is not less than that of the main frame 1, the support area of ​​the return frame 2 is larger, which can provide greater support force to ensure the stability of the connection floor slab, and the part of the support area of ​​the return frame 2 that exceeds the support area of ​​the main frame 1 can generate torque, and the torque can be adjusted to start the support effect on the support beam 3 by adjusting the position, further preventing the support beam 3 from tilting. In the extension direction of the support beam 3, the second end of the return frame 2 exceeds the second end of the main frame 1. In addition, the support beam top frame system can maintain the stability of the formwork support 4 and the casting formwork 5, which improves construction safety while ensuring construction efficiency and casting quality.

[0040] like Figure 3 As shown, in a preferred embodiment, the main frame 1 is close to the first end of the support beam 3, the first end of the support beam 3 is that end away from the cantilevered portion of the support beam 3, and the first end of the return frame 2 is aligned with the first end of the main frame 1.

[0041] During the construction process, first of all, the installation construction requirements determine the installation positions of the main frame 1 and the return frame 2. The first end of the main frame 1 and the first end of the return frame 2 are 700mm away from the first end of the support beam 3. After determining the installation position, build it on the main frame 1 at the preset position. Then build the return frame 2, and align the first end of the return frame 2 with the first end of the main frame 1, so that the return frame 2 can share the load from the main frame 1 and provide additional support through the lower floor. In actual application, the distance between the first end of the main frame 1 and the first end of the return frame 2 and the first end of the support beam 3 can be set according to the actual construction conditions, generally 200mm to 700mm.

[0042] By controlling the positions of the first ends of the main frame 1 and the return frame 2, balanced support is achieved for both ends of the support beam 3, thereby improving the stability and safety of the entire cantilever beam 7 structure. The main frame 1 is close to the first end of the support beam 3, and the force acting on the first end of the support beam 3 is relatively large, so that the main frame 1 can better bear the vertical load of the cantilevered part of the cantilever beam 7, and the first end of the return frame 2 is aligned with the main frame 1. The two frames are structurally consistent and synergistic, which not only improves the stability during construction, but also shares the load of the main frame 1 through the support area of ​​the return frame 2, thereby reducing the local stress concentration of the support beam 3 and reducing the risk of tilting or displacement of the support beam 3. In addition, the alignment of the two frames makes the entire support system more balanced in mechanical properties, which is conducive to maintaining the stability of the formwork support 4 and the casting formwork 5, and improving construction safety.

[0043] like Figures 1 to 3 As shown, in a preferred embodiment, the main frame 1 and the return frame 2 are both scaffolding, including vertical poles 101, horizontal poles 102 and longitudinal poles 103, and the vertical poles 101, horizontal poles 102 and longitudinal poles 103 are connected by connecting buckles, and the vertical poles 101 of the main frame 1 are aligned with the vertical poles 101 of the return frame 2 in the vertical direction.

[0044] During the construction process, first determine the position and spacing of the poles 101 based on the design drawings and on-site measurement data. As the main load-bearing component of the top frame, the poles 101 are accurately placed to ensure the stability of the entire structure. Subsequently, the crossbars 102 and the longitudinal bars 103 are connected to the poles 101 in accordance with predetermined design requirements to form a solid grid structure. During the construction of the main top frame 1 and the return top frame 2, pay attention to the alignment of the poles 101 of the two top frames in the vertical direction to ensure that the transmission and distribution of force between the two top frames is uniform and effective. In actual applications, steel pipe scaffolding, bamboo scaffolding, etc. can be used, and the specific material of the scaffolding can be selected according to the construction conditions.

[0045] In this embodiment, the main frame 1 and the return frame 2 are formed by connecting the vertical poles 101, the horizontal poles 102 and the longitudinal poles 103 through the connecting buckles. The support system structure is stable and easy to adjust, which is convenient for construction personnel to flexibly adjust the size and shape of the top frame according to the actual situation on site to meet different construction needs. The vertical poles 101 of the main frame 1 and the vertical poles 101 of the return frame 2 are aligned in the vertical direction, that is, the vertical poles 101 of the return frame 2 can support the vertical poles 101 of the main frame 1, preventing the main frame 1 from having too much force, which causes the connecting floor to deform greatly, thereby ensuring the stability of the support beam 3. In addition, the vertical poles 101, the horizontal poles 102 and the longitudinal poles 103 are connected by connecting buckles, which is convenient for installation and disassembly, simplifies the construction process, improves construction efficiency, and enables construction personnel to quickly build and adjust the top frame, thereby speeding up the construction progress.

[0046] like Figure 1 and Figure 2 As shown, in a preferred embodiment, the vertical bars 101, the horizontal bars 102 and the longitudinal bars 103 of the main frame 1 and the return frame 2 are evenly arranged.

[0047] During construction, construction workers evenly arrange the vertical poles 101, horizontal poles 102 and longitudinal poles 103 of the main frame 1 and the return frame 2 above and below the connection between the support beam 3 and the floor slab according to the predetermined spacing. Specifically, the longitudinal distance, step distance and horizontal distance are all 1000mm. Subsequently, the horizontal poles 102 and the longitudinal poles 103 are connected to the vertical poles 101 through connecting buckles to form a stable frame structure. In actual application, the longitudinal distance, step distance and horizontal distance are determined according to the actual construction requirements, so that the main frame 1 and the return frame 2 meet the load requirements.

[0048] In this embodiment, the evenly arranged vertical poles 101, horizontal poles 102 and longitudinal poles 103 help to simplify the construction process. Construction workers do not need to adjust the spacing between the vertical poles 101 according to the load changes at different parts of the cantilever beam 7, thereby saving construction time and cost. It is suitable for construction scenarios where the load changes are not large.

[0049] Alternatively, in a preferred embodiment, the spacing between the first end uprights 101 of the main frame 1 and the return frame 2 is smaller than the spacing between the second end uprights 101 .

[0050] During construction, first determine the layout of the uprights 101 of the main frame 1 and the return frame 2 according to the construction drawings. The spacing of the uprights 101 at the first end is smaller than the spacing of the uprights 101 at the second end, in order to optimize the bearing capacity and stability of the supporting structure. At the first end, since it is far away from the cantilevered end of the support beam 3 and close to the connection point between the support beam 3 and the floor slab, the load is large, and a smaller spacing of the uprights 101 is used to provide a stronger support force. As it moves toward the cantilevered end of the support beam 3, the load gradually decreases, so the spacing of the uprights 101 at the second end can be increased accordingly to adapt to the change in load.

[0051] By setting the spacing between the vertical poles 101 of the main frame 1 and the return frame 2, the optimal distribution of the structural support force of the cantilever beam 7 is achieved, so that the construction personnel can adjust the density and strength of the support structure according to the load requirements of different parts of the support beam 3. At the first end with a larger load, the dense vertical poles 101 can provide greater support and better stability, which helps prevent the support beam 3 from tilting or deforming in the high-load area. At the second end with a smaller load, appropriately increasing the spacing between the vertical poles 101 can reduce the use of materials while maintaining sufficient support and improve construction efficiency.

[0052] like Figure 1 and Figure 3 As shown, in a preferred embodiment, a first adjusting member 104 is provided on the top of the main frame 1, and the first adjusting member 104 is used to adjust the length of the vertical pole 101 of the main frame 1 so that the two ends of the vertical pole 101 of the main frame 1 are tightly pressed.

[0053] The first adjusting member 104 includes a supporting block, a screw connected to the supporting block, and an adjusting block threadedly connected to the screw. The top of the supporting block contacts the upper floor slab, the bottom of the screw is inserted into the vertical pole 101, and the adjusting block abuts against the top of the vertical pole 101.

[0054] During construction, when constructing the main frame 1, the construction workers first determine the initial length of the pole 101 according to the construction drawings and the actual situation on site. Then, the pole 101 is placed in the installation position, and the length of the pole 101 is adjusted using the first adjustment member 104 to ensure that the two ends of the pole 101 of the main frame 1 can be tightly pressed against the upper floor and the support beam 3. The construction workers rotate the adjustment block to change the position of the adjustment block on the screw rod, thereby adjusting the effective length of the pole 101. In actual application, the first adjustment member 104 can also use a hydraulic telescopic rod, an electric telescopic rod, etc.

[0055] By setting the first adjusting member 104 on the top of the main frame 1, the length of the vertical pole 101 of the main frame 1 can be precisely adjusted, thereby ensuring the close fit between the top frame and the upper floor and the support beam 3, improving the flexibility and adaptability of the first bracket during construction, and enabling the main frame 1 to adapt to different construction environments and structural requirements. The first adjusting member 104 allows both ends of the vertical pole 101 to be evenly pressed together, preventing problems such as insufficient support force or structural instability caused by mismatched lengths of the vertical pole 101. In addition, the first adjusting member 104 also helps to improve construction efficiency, because construction personnel can quickly adjust the length of the vertical pole 101 as needed, reducing the time and cost required to remake or replace the vertical pole 101 due to inappropriate lengths.

[0056] like Figure 1 , Figure 3 and Figure 4As shown, in a preferred embodiment, a limit seat 105 is provided at the bottom of the main frame 1, and a longitudinal connecting member 106 is provided at the bottom of the limit seat 105, and the longitudinal connecting member 106 is connected to the same row of vertical poles 101 of the main frame 1. The limit seat 105 has a similar structure to the first adjusting member 104, and also includes a support block, a screw rod, and an adjusting block. The difference is that a card slot is provided below the support block of the limit seat 105, and the card slot is engaged with the longitudinal connecting member 106.

[0057] During construction, the construction personnel first place the longitudinal connector 106 at a predetermined position according to the construction drawings and design requirements, and then place the limit seat 105 on the longitudinal connector 106, and the slot of the support block is engaged with the longitudinal connector 106. The longitudinal connector 106 is arranged in the longitudinal direction, and the vertical poles 101 in the same row are connected to the same longitudinal connector 106, thereby connecting the vertical poles 101 in the same row of the main top frame 1. During the connection process, the limit seat 105 is pressed against the longitudinal connector 106, or the construction personnel connect the limit seat 105 to the longitudinal connector 106 through fasteners or welding.

[0058] By setting a limit seat 105 and a longitudinal connector 106 at the bottom of the main frame 1, the vertical poles 101 of the main frame 1 can be accurately positioned in the horizontal direction, preventing displacement or tilting caused by external factors during the construction process. The longitudinal connector 106 connects the vertical poles 101 in the same row, enhancing the overall rigidity and bearing capacity of the top frame, so that the top frame can more effectively withstand the vertical load of the cantilevered part of the cantilever beam 7. At the same time, the support block, screw rod and adjustment block of the limit seat 105 enable it to have a length adjustment function, and the construction personnel can fine-tune the length and position of the vertical pole 101 according to the actual situation to adapt to different construction conditions and requirements.

[0059] like Figure 4 As shown, in a preferred embodiment, the longitudinal connector 106 includes a support member 107, a reinforcing member 108 is arranged inside the support member 107, and the support member 107 and the reinforcing member 108 are cross-armed on the support beam 3. Specifically, the support member 107 is a channel steel, the opening of the channel steel faces, and the reinforcing member 108 is a steel pipe, and two steel pipes are arranged in the channel steel.

[0060] During construction, the construction workers first select channel steel of appropriate size as the support member 107 according to the design requirements. The construction workers place two steel pipes as reinforcement members 108 accurately inside the channel steel and place the opening of the channel steel downward to support the limit stop seat 105 while protecting the reinforcement member 108 in the channel. The outer diameter of the two steel pipes is equivalent to the width of the notch of the channel steel, so that the steel pipe can be better limited. After the support member 107 and the reinforcement member 108 are installed in place, the entire structure is cross-armed on the support beam 3, and the longitudinal connector 106 is pressed against the support beam 3 by adjusting the length of the vertical pole 101 through the first adjustment member 104 or the limit seat 105 to provide a stable supporting force.

[0061] The stability of the main frame 1 is enhanced by providing support members 107 and longitudinal connectors 106. The structural characteristics of the channel steel enable it to effectively bear the vertical load from the uprights 101, and through its opening design, it provides a stable accommodation space for the steel pipe reinforcement 108. The addition of the steel pipe reinforcement 108 further enhances the bending and torsion resistance of the entire longitudinal connector 106, allowing the main frame 1 to withstand greater loads while maintaining the stability and durability of the structure. The effective contact area between the longitudinal connector 106 and the support beam 3 is larger, thereby distributing the load more evenly and reducing the local stress concentration of the support beam 3.

[0062] like Figure 2 and Figure 3 As shown, in a preferred embodiment, a second adjusting member 201 is provided on the top of the return frame 2, and the second adjusting member 201 is used to adjust the length of the vertical rod 101 of the return frame 2 so that the two ends of the vertical rod 101 of the return frame 2 are tightly pressed.

[0063] The structure of the second adjusting member 201 is similar to that of the first adjusting member 104, including a support block, a screw connected to the support block, and an adjusting block threadedly connected to the screw. In practical applications, the height adjusting member 302 can also use a hydraulic telescopic rod, an electric telescopic rod, etc. When a hydraulic or electric telescopic rod is used as the second adjusting member 201, the second adjusting member 201 can be set below the vertical pole 101 of the return frame 2. On the one hand, this type of telescopic rod is heavy and not easy to be placed on the top of the vertical pole 101. On the other hand, this type of telescopic rod can withstand a large load, and placing it at the bottom of the vertical pole 101 can also meet the use requirements.

[0064] During the construction process, the second adjusting member 201 is installed on the vertical pole 101 of the return top frame 2, and the initial length of the vertical pole 101 is adjusted according to the construction drawings and design requirements. Then, the vertical pole 101 is placed at the preset installation position, and the length of the vertical pole 101 is accurately adjusted using the second adjusting member 201, so that the two ends of the vertical pole 101 can be tightly connected to the floor slab and the lower floor slab. The construction personnel rotate the adjusting block to change the position of the adjusting block on the screw rod, thereby adjusting the effective length of the vertical pole 101.

[0065] By means of the second adjusting member 201 arranged at the top of the return frame 2, the length of the vertical pole 101 can be adjusted, so that the return frame 2 and the floor slab can be closely matched, thereby improving the stability and reliability of the entire support system. Construction personnel can make quick and precise adjustments according to different construction environments and floor slab conditions without having to replace the vertical pole 101 or perform complicated on-site processing, which helps to reduce material waste and improve construction efficiency. In addition, the length adjustment of the vertical pole 101 of the return frame 2 can adjust the support load, thereby achieving uniform distribution of the load, reducing local stress concentration, thereby reducing the risk of tilting of the support beam 3 and improving construction safety.

[0066] Example 2

[0067] like Figure 3 and Figure 5 As shown, a cantilever beam construction template in one embodiment of the utility model includes the above-mentioned top frame system at the rear end of the support beam.

[0068] In this embodiment, by arranging the top frame 1 and the return frame 2 above and below the support beam 3, the top frame 1 directly bears the vertical load of the cantilevered part of the cantilever beam 7, while the return frame 2 provides additional support force to ensure that the entire structure remains stable during construction. The top frame 1 and the return frame 2 effectively disperse the load at the connection of the support beam 3, reduce the local stress concentration of the support beam 3, and thus reduce the risk of the support beam 3 tilting or breaking.

[0069] like Figure 3 and Figure 5 As shown, in a preferred embodiment, the cantilever beam 7 construction formwork includes a support beam 3, the support beam 3 includes a plurality of cantilever main beams 301, the cantilever main beam 301 includes a connecting portion connected to the building body 6 and a supporting portion extending from the building body 6 for supporting the formwork bracket 4, and a height adjustment member 302 is provided at the bottom of the connecting portion, and the height adjustment member 302 is used to raise the height of the cantilever main beam 301 so that the bottom elevation of the support portion is not lower than the top elevation of the balcony inverted beam.

[0070] During the construction of the support beam 3, the connection point between the connection part of the cantilever main beam 301 and the building main body 6 is first determined, and the height adjustment member 302 is installed at the connection point. The height of the cantilever main beam 301 is adjusted by selecting the height adjustment member 302 of appropriate height, so that the top elevation of the height adjustment member 302 is higher than the top elevation of the balcony inverted beam, thereby making the bottom elevation of the support part higher than the top elevation of the balcony inverted beam, and then the connection part and the building main body 6 are firmly connected. At this time, the height of the cantilever main beam 301 is adjusted in place, and its support part also stably extends out of the building main body 6, providing solid support for the casting formwork 5.

[0071] In this embodiment, the support beam 3 effectively solves the problem of balcony structure damage in the traditional construction method by setting a cantilever main beam 301 and a height adjustment member 302. The height of the cantilever main beam 301 is adjusted by the height adjustment member 302, so that the bottom elevation of the support part is not lower than the top elevation of the balcony inverted beam, thereby avoiding the direct pressure of the casting formwork 5, the formwork support 4 and the concrete slurry on the balcony structure, which not only ensures the quality of the casting of the cantilever beam 7, but also ensures the safety and stability of the balcony structure. During the construction process, the structure is easy to install, flexible to adjust, and has high stability, providing a safer and more reliable support solution for the construction of the cantilever beam 7. In addition, the support beam 3 can be reused, which makes the construction cost low.

[0072] like Figure 3 and Figure 5 As shown, in a preferred embodiment, the supporting portion of the cantilevered main beam 301 is provided with a longitudinal connecting beam 303 , and the longitudinal connecting beam 303 is used to connect each cantilevered main beam 301 and support the formwork support 4 .

[0073] During the construction process, the position of the cantilever main beam 301 is first determined according to the design, and the prefabricated longitudinal connecting beam 303 is connected to each cantilever main beam 301. When connecting, the horizontality and verticality of the longitudinal connecting beam 303 are adjusted to meet the requirements of the supporting formwork bracket 4. The connection can be made by using high-strength connectors or welding to ensure a firm and reliable connection. In this example, the vertical pole 101 is welded to the longitudinal connecting beam. After the connection is completed, the connection part is reinforced and protective measures are taken to ensure construction safety.

[0074] In this embodiment, the longitudinal connecting beam 303 is provided to connect the cantilevered main beam 301 and support the formwork support 4. The use of the longitudinal connecting beam 303 enhances the integrity between the cantilevered main beams 301 and improves the stability and bearing capacity of the structure. Secondly, through the support of the longitudinal connecting beam 303, the formwork support 4 is more evenly stressed, thereby preventing deformation and damage of the formwork caused by uneven stress.

[0075] like Figure 3 and Figure 5 As shown, in a preferred embodiment, a plurality of first connecting members 304 are provided on the connecting portion, and the first connecting members 304 penetrate through the connecting support portion, the height adjusting member 302 and the floor of the building body 6 .

[0076] During the construction process, first, according to the support requirements of the support beam 3, the position of the connection point is pre-determined on the floor slab, so that the first connectors 304 can be reasonably distributed to stably support the cantilevered main beam 301. Subsequently, multiple first connectors 304 are arranged on the connection part, and the first connectors 304 can be made of high-strength materials to ensure the stability and safety of the connection. During installation, the first connectors 304 penetrate the floor slab connecting the support part, the height adjustment member 302 and the building body 6, and the first connectors 304 are ensured to be tightly combined with each part by welding, fastener connection or other reliable methods.

[0077] By arranging a plurality of first connectors 304 at the connection part, the connection between the cantilever main beam 301 and the building body 6 is made stable, effectively preventing structural deformation or damage caused by external loads, so that the casting formwork 5, the formwork support 4 and the concrete slurry can be stably supported. Secondly, the connector runs through the support part, the height adjustment member 302 and the floor slab to form an integral structure, which enhances the rigidity and stability of the entire support beam 3, improves the safety during the construction process, and ensures the quality of the casting of the cantilever beam 7.

[0078] like Figure 3 and Figure 5 As shown, in a preferred embodiment, a second connecting member 305 is provided on the support portion, and the second connecting member 305 connects the support portion and the upper cross beam of the building body 6.

[0079] During the construction process, the position and quantity of the second connector 305 are determined according to the design drawings, and are marked at appropriate positions of the support. Then, the second connector 305 is accurately installed on the support to ensure that the connector fits tightly with the support. Then, the other end of the second connector 305 is connected to the upper beam of the building body 6, usually by bolts, welding or other fastening methods.

[0080] In this embodiment, by providing a second connecting member 305 on the supporting part and connecting it to the upper cross beam of the building body 6, the connection strength between the supporting part and the building body 6 is enhanced, the stability and safety of the entire supporting structure are effectively improved, and it is able to resist the influence of external loads and vibrations, thereby ensuring the reliability and durability of the supporting beam 3 during use.

[0081] Specifically, the second connecting member 305 is a steel wire rope, which has high strength, corrosion resistance, excellent bearing capacity and durability, and can provide stable and reliable support for the formwork support 4, casting formwork 5, cantilever beam 7, etc.

[0082] 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 top frame system for supporting the tail end of a beam, characterized in that: include: A main frame, the main frame is located above the connection between the support beam and the floor slab, the upper end of the main frame abuts against the upper floor slab, and the lower end of the main frame abuts against the support beam; A return frame, the return frame is located below the connection between the support beam and the floor slab, the upper end of the return frame abuts against the floor slab connected to the support beam, and the lower end of the return frame abuts against the lower floor slab; The support area of ​​the return frame is not smaller than the support area of ​​the main frame.

2. A top frame system for supporting the tail end of a beam according to claim 1, characterized in that: The positive top frame is close to the first end of the support beam, and the first end of the return top frame is aligned with the first end of the positive top frame.

3. A top frame system for supporting the tail end of a beam according to claim 1 or 2, characterized in that: The main frame and the return frame both include vertical poles, horizontal poles and longitudinal poles. The vertical poles, horizontal poles and longitudinal poles are connected by connecting buckles. The vertical poles of the main frame are aligned with the vertical poles of the return frame.

4. A top frame system for supporting the tail end of a beam according to claim 3, characterized in that: The spacing between the first end uprights of the main frame and the return frame is smaller than the spacing between the second end uprights.

5. A top frame system for supporting the tail end of a beam according to claim 3, characterized in that: A first adjusting member is provided on the top of the main frame, and the first adjusting member is used to adjust the length of the vertical poles of the main frame so that two ends of the vertical poles of the main frame are tightly pressed against each other.

6. A top frame system for supporting the tail end of a beam according to claim 5, characterized in that: The first adjusting member includes a supporting block, a screw connected to the supporting block, and an adjusting block threadedly connected to the screw, the top of the supporting block contacts the upper floor, the bottom of the screw is inserted into the vertical pole, and the adjusting block abuts against the top of the vertical pole.

7. A top frame system for supporting the tail end of a beam according to claim 3, characterized in that: A limiting seat is arranged at the bottom of the main top frame, and a longitudinal connecting piece is arranged at the bottom of the limiting seat, and the longitudinal connecting piece is connected to the same row of vertical poles of the main top frame.

8. A top frame system for supporting the tail end of a beam according to claim 7, characterized in that: The longitudinal connecting member comprises a supporting member, a reinforcing member is arranged inside the supporting member, and the supporting member and the reinforcing member are cross-armed on a supporting beam.

9. A top frame system for supporting the tail end of a beam according to claim 3, characterized in that: A second adjusting member is provided on the top of the return frame, and the second adjusting member is used to adjust the length of the vertical rod of the return frame so that two ends of the vertical rod of the return frame are tightly pressed against each other.

10. A cantilever beam construction template, characterized in that: A top frame system comprising the rear end of a support beam as claimed in any one of claims 1 to 9.

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