Support system and construction method for super-high-rise residential transfer layer super-heavy cantilevered components

Abstract

The present invention discloses a super-high-rise residential conversion layer overweight cantilevered component support system and a construction method thereof. The method adopts reinforced load-bearing steel pipe columns, steel box beam corbels, Bailey frames, I-beam distribution beams, and intensive steel pipe fastener-type support frames to form a cantilevered component support system. The component load is evenly transmitted to the cantilevered steel platform through the intensive steel pipe fastener-type support frame. The steel platform can be flexibly designed to meet the requirements according to the actual load, span, and cantilever length on site; the present invention uses less materials and can be used in a turnover manner. There is no bearing capacity requirement for the lower horizontal structure and the impact on the construction of the surrounding podium and underground structure area is reduced. The construction process is safe, reliable, green and environmentally friendly, with a high promotion and popularization rate, and is very suitable for construction tasks similar to overweight cantilevered suspended components.

Description

Technical Field

[0001] The invention relates to a super-high-rise residential transfer layer super-heavy cantilevered component support system and a construction method, belonging to the technical field of building construction. Background Art

[0002] With the rapid development of the national economy and the advancement of design-construction technology, my country's urban construction has also made great strides. Various super-high-rise and large-scale complex projects have continuously innovated structural types and refreshed building heights. Among them, the frame-supported shear wall super-high-rise residential complex adopts a frame structure at the bottom, and the upper part needs to be converted to a shear wall structure at a high position; and the structural deadweight corresponding to the super-high building height and the requirements for the lower building layout often easily cause the conversion layer to require an oversized, overweight, complex structure and external cantilevered situation. Conventional ground-type full-height formwork (this structure occupies a large area, has a complex structure, and is very high) can no longer meet the progress, safety and economic requirements of similar project construction tasks. Summary of the invention

[0003] The purpose of the present invention is to provide a support system and construction method for overweight external cantilevered components of a super high-rise residential conversion layer, which has a simple construction process, is safe and reliable, and has a high turnover rate. It can not only safely and efficiently ensure the construction task of the conversion layer structure in the cramped space of a super high-rise residential complex project, but also does not affect the construction of the podium and large basement. At the same time, it saves a lot of manpower and material input, avoids the waste caused by the need to permanently strengthen the support structure over a large area due to accidental temporary load loading during the construction stage, solves the construction problem of overweight external cantilevered components, and overcomes the shortcomings of the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A construction method for a support system for an overweight cantilevered component of a super-high-rise residential transfer layer. The method transfers the construction load of the overweight cantilevered component of the super-high-rise residential transfer layer to a cantilevered steel platform through a balanced load-bearing system, and the cantilevered steel platform bears the construction load, so that the overweight cantilevered component of the super-high-rise residential transfer layer has no bearing capacity requirement for the structure below it. While solving the problem of no reliable structural support below the suspended component during the construction stage, the impact of its construction on the construction of surrounding podium buildings and underground structures below it is greatly reduced.

[0006] Preferably, the balanced load-bearing system comprises a dense steel pipe fastener-type support frame;

[0007] The cantilever steel platform comprises a steel box girder corbel, a Bailey frame and an I-beam distribution beam, wherein the Bailey frame is laid on the steel box girder corbel and fixed to each other, the I-beam distribution beam is laid on the Bailey frame and fixed to each other, and the inner end of the steel box girder corbel is fixed to a reinforced load-bearing steel pipe column;

[0008] The balanced load-bearing system is laid on the cantilever steel platform and fixed to each other (their horizontal displacement is limited by rivets). The construction load of the overweight cantilevered suspended component is evenly transmitted to the I-beam distribution beam through the dense steel pipe fastener support frame, then to the Bailey frame, then to the steel box beam corbel, and finally to the reinforced load-bearing steel pipe column.

[0009] Preferably, the method comprises the following steps:

[0010] Step 1: Determine the specific position of the steel box girder corbel according to the engineering design drawing and actual site conditions;

[0011] Step 2: pre-weld a reinforced steel ring plate on the inner wall of the reinforced load-bearing steel pipe column corresponding to the position of the steel box girder corbel, and the reinforced steel ring plate corresponds to the upper and lower wings of the steel box girder corbel; at the same time, an arc-shaped triangular support plate with a positioning function is arranged at the position of the outer wall of the reinforced load-bearing steel pipe column corresponding to the steel box girder corbel, and then hoist the reinforced load-bearing steel pipe column to the engineering design position (located on the internal support layer structure of the next layer of the external cantilevered suspended component), and pour concrete into the steel pipe column;

[0012] The reinforced load-bearing steel pipe column generally adopts the original steel pipe column structure of the structural design to strengthen the lateral stiffness. Two layers of reinforcing steel ring plates are added to the upper and lower flanges of the box girder at the position of the butt steel box girder corbel to enhance the lateral stiffness of the steel pipe column. The top plate and bottom plate of the corresponding steel pipe column section structure have been completed (see the construction of steel pipe columns and their bottom plates and top plates in the prior art. The internal support layer structure in this application is the unified name for the bottom plate and the top plate, that is, every two internal support layer structures have steel pipe columns, and the internal support layer structures above and below the steel pipe columns are respectively called the bottom plate and top plate of the corresponding steel pipe columns), providing reliable lateral force transmission for them.

[0013] Step three, hoist the steel box girder corbel and fully penetrate weld it to the reinforced load-bearing steel pipe column, then hoist the steel box girder corbel and weld it to the reinforced load-bearing steel pipe column, and then fill in the remaining arc-shaped triangular support plates, and use the same welding method to make it have a reinforced connection function. The flange width of the steel box girder corbel must be ≥600mm, so that the Bailey frame can be simply supported in sections on the flange of the steel box girder corbel, reducing the length and weight of the high-altitude hoisting Bailey frame. At the same time, the cantilevered end of the steel box girder corbel extends beyond the projection range of the upper overweight cantilevered suspended component, so that the Bailey frame can directly transfer the load downward to the corresponding position.

[0014] Step 4: Install the Bailey frame and fix it on the steel box girder corbel through standardized clamps; the Bailey frame adopts the ordinary 321 type highway bridge Bailey frame, and the span and number of frames are determined according to actual needs. The Bailey frame is supported on the aforementioned steel box girder corbel as a simply supported beam or continuous beam according to the lifting capacity of the project's lifting equipment, and is fixed by welding with standardized clamps.

[0015] Step 5: Lay an I-beam distribution beam, which is simply supported between the internal support layer structure and the Bailey frame platform, and is fixed to the Bailey frame and the internal support layer structure respectively through round steel U-shaped clips and round steel embedded clips; if there is no reliable internal support layer structure (the said no reliable internal support layer structure means that the plane of the internal support layer structure after casting (or the corresponding top plate or bottom plate on the steel pipe column) is not in the same horizontal plane as the designed Bailey frame 4), it can be directly supported on the Bailey frame platform and the length of the Bailey frame platform is widened;

[0016] According to the actual situation of the project, the I-beam distribution beam can be supported on the internal supporting layer structure at one end and on the Bailey frame platform at the other end, or it can be fully supported on the Bailey frame platform (the platform width is ≥1.5m and aligned with the upper components). It is preferred to support one end of the internal supporting layer structure and the other end of the Bailey frame platform. It is fixed to the internal supporting layer structure with a fixed embedded clip and fixed to the Bailey frame with a fixed U-shaped clip to prevent rollover and ensure its reliable fixation. The cantilevered end of the I-beam distribution beam exceeds the supported overweight cantilevered suspended component by 1m to provide a working surface for erecting the external frame.

[0017] Step 6: Fix the upper intensive steel pipe fastener support frame and the external scaffolding poles on the I-beam distribution beam, and set up the external scaffolding at the same time;

[0018] Steel rivets are set on the upper flange of the I-beam distribution beam, and steel rivets are inserted into the upper intensive steel pipe fastener type support frame and the external scaffolding uprights to facilitate the support of the frame on the platform and prevent the steel pipe from sliding to ensure the stability of the frame; the main material of the intensive steel pipe fastener type support frame is ordinary steel pipe fastener type scaffolding, and the longitudinal and transverse spacing of the uprights is ≯450mm to ensure that the upper overweight load is evenly transferred to the lower platform to avoid local stress concentration. At the same time, the longitudinal and transverse spacing should be the module to facilitate the alignment and adjustment of the uprights under the beam.

[0019] Step seven: Set up dense steel pipe fastener-type support frames, lay the formwork required for cantilevered components, tie steel bars, and cast overweight cantilevered components.

[0020] Step 8: Remove the formwork required for the cantilevered components, remove the intensive steel pipe fastener support frame, remove the external scaffolding, remove the distribution beam, remove the Bailey frame, and remove the steel box beam corbel in sequence.

[0021] According to the above construction method, a super high-rise residential conversion layer super heavy cantilevered component support system is provided, which comprises a reinforced load-bearing steel pipe column located below the cantilevered component and an internal support layer structure below the projection of the internal structure of the conversion layer cantilevered component, characterized in that:

[0022] A cantilever steel platform is fixedly set on one side of the reinforced load-bearing steel pipe column, a balanced load-bearing system composed of a dense steel pipe fastener type support frame is laid on the cantilever steel platform and its horizontal displacement is restricted, an external scaffolding is erected on the cantilever steel platform outside the balanced load-bearing system and fixed to each other, the dense steel pipe fastener type support frame and the external scaffolding are parallel to each other, the balanced load-bearing system is located directly below the cantilevered suspended component, and the balanced load-bearing system is used to support the cantilevered suspended component during the construction phase.

[0023] Preferably, a reinforced steel ring plate is fixedly provided on the inner wall of the reinforced load-bearing steel pipe column at the connection with the cantilever steel platform, and the reinforced load-bearing steel pipe column is filled with concrete;

[0024] Grouting holes are evenly distributed around the reinforced steel ring plate, and a grouting hole is formed in the middle of the reinforced steel ring plate.

[0025] Preferably, the cantilever steel platform comprises a steel box girder corbel, a Bailey frame, and an I-beam distribution beam, wherein the Bailey frame is fixed on the steel box girder corbel, and the I-beam distribution beam is fixed on the Bailey frame;

[0026] An additional arc-shaped triangular support plate is provided at the connection between the steel box girder corbel and the reinforced load-bearing steel pipe column in the cantilever steel platform to improve the connection strength.

[0027] Preferably, the steel box girder corbel adopts a rectangular box girder cross-section, and a sliding disassembly platform is added at the cantilevered end, the upper flange of the sliding disassembly platform is consistent with the upper flange of the steel box girder corbel, the webs on both sides are cut into triangles, and there is no lower flange. The sliding disassembly platform can be integrally processed with the steel box girder corbel, and can also be connected to the corbel by welding; no load should be applied to it during the construction stage of the cantilevered suspended component, and it is only used to facilitate the Bailey frame to be pushed outward when dismantling it, thereby facilitating the lifting machinery to dismantle the Bailey frame.

[0028] Preferably, a shaped clamp is evenly arranged between the bottom of the Bailey frame and the steel box girder corbel; the shaped clamp is a "[" structure, the shaped clamp spans the bottom support rod of the Bailey frame and the two ends are fixedly welded to the steel box girder corbel, and the shaped clamp is kept parallel to the steel box girder corbel;

[0029] Steel rivets are evenly arranged on the wing plates of the I-beam distribution beams, and the uprights of the intensive steel tube fastener type support frames and the external scaffolding are inserted into the steel rivets to facilitate the support of the intensive steel tube fastener type support frames and the external scaffolding, while preventing sliding to ensure the stability of the intensive steel tube fastener type support frames and the external scaffolding.

[0030] Preferably, the upper part of the Bailey frame and the I-beam distribution beam are fixed in such a manner that the I-beam distribution beam is fully supported on the Bailey frame platform, or one end of the I-beam distribution beam is supported on the internal support layer structure, and the other end is supported on the Bailey frame platform;

[0031] The I-beam distribution beam is fully supported on the Bailey frame platform, which means that a fixed U-shaped card is arranged between the upper part of the Bailey frame and the I-beam distribution beam, and a connecting plate with connecting holes is fixedly arranged at the gap between the I-beam distribution beams. The fixed U-shaped card is buckled to fix the top support of the Bailey frame in the fixed U-shaped card, and the two legs of the fixed U-shaped card extend out of the gap between the I-beam distribution beams and cooperate with the connecting plate with connecting holes at the same time, and the I-beam distribution beam is connected and fixed to the Bailey frame by bolts and the legs of the fixed U-shaped card, so that the I-beam distribution beam is fully supported on the Bailey frame platform;

[0032] The I-beam distribution beam is supported at one end on the internal support layer structure and at the other end on the Bailey frame platform, which means that a fixed embedded card is pre-embedded in the internal support layer structure, and the inner end of the I-beam distribution beam is embedded in the fixed embedded card and fixed by bolts, a fixed U-shaped card is arranged between the other side of the I-beam distribution beam and the upper part of the Bailey frame, a connecting plate with connecting holes is fixedly arranged at the gap between the I-beam distribution beams, the fixed U-shaped card is inverted to fix the top support of the Bailey frame in the fixed U-shaped card, and the two legs of the fixed U-shaped card extend out of the gap between the I-beam distribution beams and cooperate with the connecting plate with connecting holes at the same time, and are tightened by bolts and the fixed U-shaped card legs, so that one end of the I-beam distribution beam is supported on the internal support layer structure and the other end is supported on the Bailey frame platform.

[0033] Compared with the existing common high-support formwork technology, the present invention greatly reduces the turnover materials used for support, the force transmission system is safe and reliable, and the impact on the construction of the surrounding podium and underground structure areas is reduced. At the same time, the present invention has no bearing capacity requirements for the lower horizontal structure, avoiding the waste caused by the permanent reinforcement of the supporting layer structure due to the one-time overweight accidental load formed during the construction stage. In addition, the customized / existing materials used in the present invention are all turnover materials, green and environmentally friendly, the construction process is safe and reliable, and the promotion and popularization rate is high, which is very suitable for construction tasks such as overweight cantilevered components. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 is the front view of the attached drawing;

[0036] Figure 3 For attachment Figure 2 AA section view;

[0037] Figure 4 It is a schematic diagram of the connection between the reinforced load-bearing steel pipe column and the steel box beam corbel in the present invention;

[0038] Figure 5 It is a schematic diagram of the connection between the steel box girder corbel, Bailey frame and I-beam distribution beam in the present invention;

[0039] Figure 6 It is a schematic diagram of the connection between the I-beam distribution beam and the intensive steel pipe fastener type support frame and the external scaffolding in the present invention.

[0040] 1-Reinforced load-bearing steel pipe column, 2-Reinforced steel ring plate, 3-Steel box girder corbel, 4-Bailey frame, 5-I-beam distribution beam, 6-Dense steel pipe fastener support frame, 7-External scaffolding, 8-Overweight cantilevered suspended component, 9-Triangular support plate, 10-Formed clamp, 11-Formed U-shaped clamp, 12-Formed embedded clamp, 13-Rebar rivet, 14-Slurry hole, 15-Grouting hole, 17-Internal support layer structure, 18-Sliding disassembly platform. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-6 , the present invention provides a technical solution:

[0043] A construction method for a support system for an overweight cantilevered component of a super-high-rise residential transfer layer. The method transfers the construction load of the overweight cantilevered component of the super-high-rise residential transfer layer to a cantilevered steel platform through a balanced load-bearing system, and the cantilevered steel platform bears the construction load, so that the overweight cantilevered component of the super-high-rise residential transfer layer has no bearing capacity requirement for the structure below it. While solving the problem of no reliable structural support below the suspended component during the construction stage, the impact of its construction on the construction of surrounding podium buildings and underground structures below it is greatly reduced.

[0044] Preferably, the balanced load-bearing system comprises a dense steel pipe fastener-type support frame 6;

[0045] The cantilever steel platform comprises a steel box girder corbel 3, a Bailey frame 4 and an I-beam distribution beam 5, wherein the Bailey frame 4 is laid on the steel box girder corbel 3 and fixed to each other, the I-beam distribution beam 5 is laid on the Bailey frame 4 and fixed to each other, and the inner end of the steel box girder corbel 3 is fixed to a reinforced load-bearing steel pipe column 1;

[0046] The balanced load-bearing system is laid on a cantilever steel platform and fixed to each other by rivets to limit its horizontal displacement. The construction load of the overweight cantilevered suspended component 8 is evenly transmitted to the I-beam distribution beam 5 through the dense steel pipe fastener support frame 6, then to the Bailey frame 4, and then to the steel box beam corbel 3, and finally to the reinforced load-bearing steel pipe column 1.

[0047] Preferably, the construction method comprises the following steps:

[0048] Step 1: Determine the specific position of the steel box girder corbel 3 according to the engineering design drawing and the actual situation on site;

[0049] Step 2: pre-weld a reinforced steel ring plate 2 on the inner wall of the reinforced load-bearing steel pipe column 1 corresponding to the position of the steel box girder corbel 3, wherein the reinforced steel ring plate 2 corresponds to the upper and lower wings of the steel box girder corbel 3; at the same time, an arc-shaped triangular support plate 9 with a positioning function is arranged on the outer wall of the reinforced load-bearing steel pipe column 1 corresponding to the position of the steel box girder corbel 3, and then hoist the reinforced load-bearing steel pipe column 1 to the internal support layer structure 17 located on the lower layer of the cantilevered suspended component at the engineering design position, and pour concrete into the steel pipe column;

[0050] The reinforced load-bearing steel pipe column generally adopts the original steel pipe column structure of the structural design to strengthen the lateral stiffness. Two layers of reinforcing steel ring plates are added to the upper and lower flanges of the box girder at the position of the butt steel box girder corbel to enhance the lateral stiffness of the steel pipe column. The corresponding top plate and bottom plate of the steel pipe column section structure have been completed (see the construction of steel pipe columns and their bottom plates and top plates in the prior art. The internal support layer structure 17 in this application is a unified name for the bottom plate and the top plate, that is, every two internal support layer structures 17 have steel pipe columns, and the upper and lower internal support layer structures 17 of the steel pipe columns are respectively called the bottom plate and the top plate of the corresponding steel pipe columns) to provide reliable lateral force transmission.

[0051] Step three, hoist the steel box girder corbel 3 and fully penetrate weld it with the reinforced load-bearing steel pipe column 1, then hoist the steel box girder corbel 3 and weld it to the reinforced load-bearing steel pipe column 1, and then fill in the remaining arc-shaped triangular support plate 9, and use the same welding method to make it have a reinforced connection function. The flange width of the steel box girder corbel must be ≥600mm, so that the Bailey frame can be simply supported in sections on the flange of the steel box girder corbel, reducing the length and weight of the high-altitude hoisting Bailey frame. At the same time, the cantilevered end of the steel box girder corbel grows out of the projection range of the upper overweight cantilevered suspended component, so that the Bailey frame can directly transfer the load downward to the corresponding position.

[0052] Step 4: hoist the Bailey frame 4 and fix it on the steel box girder corbel 3 through the standardized clamp 10; the Bailey frame adopts the ordinary 321 type highway bridge Bailey frame, and the span and number of frames are determined according to actual needs. The Bailey frame is supported on the aforementioned steel box girder corbel as a simply supported beam or a continuous beam according to the lifting capacity of the project lifting equipment, and is fixed by welding with standardized clamps.

[0053] Step 5: Lay the I-beam distribution beam 5, which is simply supported between the internal support layer structure 17 and the Bailey frame 4 platform, and is fixed to the Bailey frame 4 and the internal support layer structure 17 respectively through the round steel U-shaped card 11 and the round steel embedded card 12; if there is no reliable internal support layer structure 17 (the said no reliable internal support layer structure 17 means that the plane of the internal support layer structure 17 after casting (or the corresponding top plate or bottom plate on the steel pipe column) is not in the same horizontal plane with the designed Bailey frame 4), it can be directly supported on the Bailey frame 4 platform and the length of the Bailey frame 4 platform is widened;

[0054] According to the actual situation of the project, the I-beam distribution beam can be supported on the internal supporting layer structure at one end and on the Bailey frame platform at the other end, or it can be fully supported on the Bailey frame platform (the platform width is ≥1.5m and aligned with the upper components). It is preferred to support one end of the internal supporting layer structure and the other end of the Bailey frame platform. It is fixed to the internal supporting layer structure with a fixed embedded clip and fixed to the Bailey frame with a fixed U-shaped clip to prevent rollover and ensure its reliable fixation. The cantilevered end of the I-beam distribution beam exceeds the supported overweight cantilevered suspended component by 1m to provide a working surface for erecting the external frame.

[0055] Step 6: Fix the upper intensive steel pipe fastener type support frame 6 and the outer scaffolding 7 uprights on the I-beam distribution beam 5, and set up the outer scaffolding 7 at the same time;

[0056] Steel rivets are set on the upper flange of the I-beam distribution beam, and steel rivets are inserted into the upper intensive steel pipe fastener type support frame and the external scaffolding uprights to facilitate the support of the frame on the platform and prevent the steel pipe from sliding to ensure the stability of the frame; the main material of the intensive steel pipe fastener type support frame is ordinary steel pipe fastener type scaffolding, and the longitudinal and transverse spacing of the uprights is ≯450mm to ensure that the upper overweight load is evenly transferred to the lower platform to avoid local stress concentration. At the same time, the longitudinal and transverse spacing should be the module to facilitate the alignment and adjustment of the uprights under the beam.

[0057] Step seven: Set up dense steel pipe fastener-type support frames, lay the formwork required for cantilevered components, tie steel bars, and cast overweight cantilevered components.

[0058] Step 8: Remove the formwork required for the cantilevered components, remove the intensive steel pipe fastener support frame, remove the external scaffolding, remove the distribution beam, remove the Bailey frame, and remove the steel box beam corbel in sequence.

[0059] According to the above construction method, a super high-rise residential conversion layer super heavy cantilevered component support system is provided, which comprises a reinforced load-bearing steel pipe column 1 located below the cantilevered component 8 and an internal support layer structure 17 below the projection of the internal structure of the conversion layer cantilevered component 8, characterized in that:

[0060] A cantilever steel platform is fixedly set on one side of the reinforced load-bearing steel pipe column 1, and a balanced load-bearing system composed of a dense steel pipe fastener type support frame 6 is laid on the cantilever steel platform to limit its horizontal displacement, and an external scaffolding 7 is erected on the cantilever steel platform outside the balanced load-bearing system and fixed to each other. The dense steel pipe fastener type support frame 6 and the external scaffolding 7 are parallel to each other. The balanced load-bearing system is located directly below the cantilevered suspended component, and the balanced load-bearing system is used to support the cantilevered suspended component during the construction phase.

[0061] Preferably, a reinforced steel ring plate 2 is fixedly provided on the inner wall of the reinforced load-bearing steel pipe column 1 at the connection with the cantilever steel platform, and the reinforced load-bearing steel pipe column 1 is filled with concrete;

[0062] Grouting holes 14 are evenly distributed around the reinforcing steel ring plate 2 , and a grouting hole 15 is formed in the middle of the reinforcing steel ring plate 2 .

[0063] Preferably, the cantilever steel platform comprises a steel box girder corbel 3, a Bailey frame 4, and an I-beam distribution beam 5, wherein the Bailey frame 4 is fixed on the steel box girder corbel 3, and the I-beam distribution beam 5 is fixed on the Bailey frame 4;

[0064] An additional arc-shaped triangular support plate 9 is provided at the connection between the steel box girder corbel 3 and the reinforced load-bearing steel pipe column in the cantilever steel platform to improve the connection strength.

[0065] Preferably, the steel box girder corbel 3 adopts a rectangular box girder cross-section, and a sliding disassembly platform 18 is added to the cantilevered end, the upper flange of the sliding disassembly platform 18 is consistent with the upper flange of the steel box girder corbel 3, the webs on both sides are cut into triangles, and there is no lower flange. The sliding disassembly platform 18 can be integrally processed with the steel box girder corbel 3, and can also be connected to the corbel by welding; no load should be applied to the cantilevered suspended component 8 during the construction stage, and the Bailey frame 4 is only used to facilitate the Bailey frame 4 to be pushed outward when disassembling it, thereby facilitating the lifting machinery to disassemble the Bailey frame 4.

[0066] Preferably, a shaped clamp 10 is evenly arranged between the bottom of the Bailey frame 4 and the steel box girder corbel 3; the shaped clamp 10 is a "[" structure, the shaped clamp 10 spans the bottom support rod of the Bailey frame 4 and the two ends are fixedly welded to the steel box girder corbel 3, and the shaped clamp 10 is kept parallel to the steel box girder corbel 3;

[0067] Steel rivets 13 are evenly arranged on the wing plates of the I-beam distribution beam 5, and the vertical poles of the intensive steel tube fastener type support frame 6 and the external scaffolding 7 are inserted into the steel rivets 13 to facilitate the support of the intensive steel tube fastener type support frame 6 and the external scaffolding 7, while preventing sliding and ensuring the stability of the intensive steel tube fastener type support frame 6 and the external scaffolding 7.

[0068] Preferably, the upper part of the Bailey frame 4 and the I-beam distribution beam 5 are fixed in such a manner that the I-beam distribution beam 5 is completely supported on the platform of the Bailey frame 4, or one end of the I-beam distribution beam 5 is supported on the internal support layer structure 17, and the other end is supported on the platform of the Bailey frame 4;

[0069] The I-beam distribution beam 5 is fully supported on the platform of the Bailey frame 4, which means that a fixed U-shaped card 11 is arranged between the upper part of the Bailey frame 4 and the I-beam distribution beam 5, and a connecting plate with a connecting hole is fixedly arranged at the gap between the I-beam distribution beams 5. The fixed U-shaped card 11 is buckled to fix the top support of the Bailey frame 4 in the fixed U-shaped card 11, and the two legs of the fixed U-shaped card 11 extend out of the gap between the I-beam distribution beams 5 and cooperate with the connecting plate with the connecting hole, and the bolts are tightened with the legs of the fixed U-shaped card 11 to realize the connection and fixation of the I-beam distribution beam 5 with the Bailey frame 4, so that the I-beam distribution beam 5 is fully supported on the platform of the Bailey frame 4;

[0070] The I-beam distribution beam 5 is supported at one end on the internal support layer structure 17 and at the other end on the platform of the Bailey frame 4, which means that a fixed embedded card 12 is pre-embedded in the internal support layer structure 17, and the inner end of the I-beam distribution beam 5 is embedded in the fixed embedded card 12 and fixed by bolts, a fixed U-shaped card 11 is arranged between the other side of the I-beam distribution beam 5 and the upper part of the Bailey frame 4, a connecting plate with connecting holes is fixedly arranged at the gap between the I-beam distribution beams 5, the fixed U-shaped card 11 is inverted to fix the top support of the Bailey frame 4 in the fixed U-shaped card 11, and the two legs of the fixed U-shaped card 11 extend out of the gap between the I-beam distribution beams 5 and cooperate with the connecting plate with connecting holes, and are tightened by bolts and the legs of the fixed U-shaped card 11, so that one end of the I-beam distribution beam 5 is supported on the internal support layer structure 17 and the other end is supported on the platform of the Bailey frame 4.

[0071] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction method for a super high-rise residential transfer layer super heavy cantilevered suspended component support system, characterized in that: The method adopts the method of transferring the construction load of the super-high-rise residential conversion layer's overweight external cantilevered suspended components to the cantilevered steel platform through a balanced load-bearing system, and the cantilevered steel platform bears the construction load, so that the super-high-rise residential conversion layer's overweight external cantilevered suspended components have no bearing capacity requirements on the structure below them. While solving the problem of no reliable structural support under the suspended components during the construction stage, the impact of their construction on the construction of the surrounding podium and the underground structure below them is greatly reduced. The balanced load-bearing system comprises a dense steel pipe fastener-type support frame (6); The cantilever steel platform comprises a steel box girder corbel (3), a Bailey frame (4) and an I-beam distribution beam (5), wherein the Bailey frame (4) is laid on the steel box girder corbel (3) and fixed to each other, the I-beam distribution beam (5) is laid on the Bailey frame (4) and fixed to each other, and the inner end of the steel box girder corbel (3) is fixed to a reinforced load-bearing steel pipe column (1); The balanced load-bearing system is laid on the cantilever steel platform and fixed to each other. The construction load of the super-heavy cantilevered member (8) is evenly transmitted to the I-beam distribution beam (5) through the dense steel pipe fastener support frame (6), then to the Bailey frame (4), then to the steel box beam corbel (3), and finally to the reinforced load-bearing steel pipe column (1); The construction process includes the following steps: Step 1: Determine the specific position of the steel box girder corbel (3) according to the engineering design drawing and the actual situation on site; Step 2: Strengthen the originally designed steel pipe column in the built internal support layer structure (17) at the lower part of the transfer layer to form a reinforced load-bearing steel pipe column (1), weld a reinforced steel ring plate (2) to the position of the steel bracket in the reinforced load-bearing steel pipe column (1), and then pour concrete into the steel pipe column; Step 3, hoisting the steel box girder corbel (3) and fully penetrating welding it with the reinforced load-bearing steel pipe column (1); Step 4: hoist the Bailey frame (4) and fix it on the steel box girder bracket (3) through the shaped clamp (10); Step 5: Lay an I-beam distribution beam (5), which is simply supported between the internal support layer structure (17) and the Bailey frame (4) platform, and is fixed to the Bailey frame (4) and the internal support layer structure (17) respectively by means of a round steel U-shaped clip (11) and a round steel embedded clip (12); if there is no reliable internal support layer structure (17), it can be directly supported on the Bailey frame (4) platform and the length of the Bailey frame (4) platform can be widened; Step 6: Fix the dense steel pipe fastener type support frame (6) and the external scaffolding (7) uprights on the I-beam distribution beam (5), and set up the external scaffolding (7) at the same time; Step 7: Set up dense steel pipe fastener support frame, lay the templates required for the cantilevered components, tie the steel bars, and cast the overweight cantilevered components; Step 8: Remove the templates required for the cantilevered components, remove the intensive steel pipe fastener support frame, remove the external scaffolding, remove the distribution beam, remove the Bailey frame, and remove the steel box beam bracket in sequence; In steps 2 and 3, a reinforced steel ring plate (2) is welded in advance on the inner wall of the reinforced load-bearing steel pipe column (1) corresponding to the position of the steel box girder corbel (3), and the reinforced steel ring plate (2) corresponds to the upper and lower wings of the steel box girder corbel (3); at the same time, an arc-shaped triangular support plate (9) with a positioning function is arranged on the outer wall of the reinforced load-bearing steel pipe column (1) at the position corresponding to the steel box girder corbel (3), and then the steel box girder corbel (3) is hoisted and welded to the reinforced load-bearing steel pipe column (1), and then the remaining arc-shaped triangular support plates (9) are filled in, and the same welding method is used to make them have a reinforcing connection function.

2. The construction method of a super high-rise residential transfer layer super heavy cantilevered suspended component support system according to claim 1, characterized in that: The Bailey frame (4) in step 4 is supported on the aforementioned steel box girder bracket (3) by a simply supported beam or a continuous beam, and is fixed to the steel box girder bracket by welding using a shaped clamp (10).

3. A super-high-rise residential transfer layer super-heavy cantilevered component support system required by the construction method of claim 1 or 2, comprising a reinforced load-bearing steel pipe column (1) located below the cantilevered cantilevered component (8), characterized in that: A cantilever steel platform is fixedly arranged on one side of the reinforced load-bearing steel pipe column (1); a balanced load-bearing system consisting of a dense steel pipe fastener-type support frame (6) is laid on the cantilever steel platform to limit its horizontal displacement; an external scaffolding (7) is erected on the cantilever steel platform outside the balanced load-bearing system and fixed to each other; the dense steel pipe fastener-type support frame (6) and the external scaffolding (7) are parallel to each other; the balanced load-bearing system is located directly below the external cantilever suspended component; the balanced load-bearing system is used to support the external cantilever suspended component during the construction stage.

4. The super-high-rise residential transfer layer super-heavy cantilevered component support system according to claim 3 is characterized by: A reinforced steel ring plate (2) is fixedly arranged on the inner wall of the reinforced load-bearing steel pipe column (1) at the connection with the cantilever steel platform, and the reinforced load-bearing steel pipe column (1) is filled with concrete; Grouting holes (14) are evenly distributed around the reinforced steel ring plate (2), and a grouting hole (15) is formed in the middle of the reinforced steel ring plate (2).

5. The super high-rise residential transfer layer super heavy cantilevered member support system according to claim 1 is characterized by: The steel box girder bracket (3) adopts a rectangular box girder cross-section, and a sliding disassembly platform (18) is added at the cantilever end. The upper flange of the sliding disassembly platform (18) is consistent with the upper flange of the steel box girder bracket (3), and the webs on both sides are cut into triangles without a lower flange.

6. The super-high-rise residential transfer layer super-heavy cantilevered component support system according to claim 1 is characterized by: A shaped clamp (10) is evenly arranged between the bottom of the Bailey frame (4) and the steel box girder corbel (3); the shaped clamp (10) is a "[" structure, the shaped clamp (10) spans the bottom support rod of the Bailey frame (4) and has both ends fixedly welded to the steel box girder corbel (3), and the shaped clamp (10) remains parallel to the steel box girder corbel (3); Steel bar rivets (13) are evenly arranged on the upper wing plate of the I-beam distribution beam (5), and the uprights of the dense steel tube fastener type support frame (6) and the external scaffolding (7) are inserted into the steel bar rivets (13) to facilitate the installation of the dense steel tube fastener type support frame (6) and the external scaffolding (7), while preventing sliding, thereby ensuring the stability of the dense steel tube fastener type support frame (6) and the external scaffolding (7).

Images