Lifter reinforcing structure based on multi-floor overlapping bearing and construction method thereof

Abstract

The invention discloses a lifter reinforcing structure based on multi-floor overlapping bearing and a construction method thereof. The lifter reinforcing structure comprises a lifter mounting support, and a lifter is mounted at the end, extending out of a floor, of the lifter mounting support; the plurality of groups of structural connecting and bearing assemblies are respectively fixed on the structural wall / structural column and the lower floor slab; the lifter mounting bracket of the upper floor and the structural connecting and bearing component of the lower floor are connected into a whole through the H-shaped steel; the reinforcing structure further comprises a reinforcing steel wire rope assembly connected between the end, away from the lifter mounting support, of the upper floor and the lifter mounting support. According to the reinforcing structure, the fabricated embedded parts and the finished steel plate connecting assemblies are adopted, and the upper floor and the lower floor are connected together through the I-shaped steel, so that the upper floor can bear more loads, reinforcing steel bars additionally arranged due to the fact that temporary load bearing is only considered during design can be reduced, the cost is saved, and most of materials can be recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, and in particular to a riser reinforcement structure based on multi-floor superimposed bearing and a construction method thereof. Background Art

[0002] For large-span steel structure corridors / roofs, during the overall lifting construction process, the hydraulic lifters are generally set at the upper part of the steel corridor structure. In order to ensure that there is a reliable supporting structure at the installation position of the hydraulic lifter, a cantilever structure is usually set on the roof floor or floor part for the installation of the hydraulic lifter. As a result, the floor structure needs to be reinforced to meet the lifting requirements, which increases the construction period and the cost of reinforcement measures, and causes unnecessary damage to the main structure.

[0003] Prior art: A Chinese invention patent application with publication number CN105781124A entitled "A method for installing a steel structure corridor of a super high-rise twin tower building" discloses a reinforcement structure of a riser, see Figure 1 As shown, a lifting device and a hydraulic pump station are installed on the top of the twin towers, and a lifting bracket and a lifting point are set; the lifting bracket is set on the top of the tower structure, and the lifting bracket is fixed by welding to the embedded steel plate.

[0004] However, after careful analysis, it is not difficult to see that the above existing technologies still have shortcomings:

[0005] 1. The H-shaped steel of the lifting frame is fixed by welding with the embedded steel plate, and the embedded steel plate cannot be reused later.

[0006] 2. The embedded steel plate part must be a load-bearing structural wall or structural column, otherwise it will be difficult for the embedded steel plate part to meet the requirements of lifting heavy steel structures.

[0007] Therefore, based on the above technical problems, technicians in this field urgently need to develop a lift reinforcement structure based on multi-floor overlapping load-bearing and a construction method thereof. Summary of the invention

[0008] The purpose of the present invention is to provide a hoist reinforcement structure based on multi-story overlapping load-bearing and a construction method thereof. The reinforcement structure adopts assembled embedded parts and finished steel plate connection components, and connects the upper and lower floor slabs together through I-beams, so that the upper floor can bear more loads, which can reduce the steel bars added for temporary load-bearing considerations during the design, save costs, and most of the materials can be reused.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] The present invention discloses a reinforcement structure for a riser based on multi-floor stacking load-bearing, the reinforcement structure comprising:

[0011] A lifter mounting bracket fixed to the upper floor, wherein the front end of the lifter mounting bracket extends to the outside of the floor, and a lifter is mounted on the end of the lifter mounting bracket extending to the outside of the floor;

[0012] A structural connection and load-bearing component fixed to the lower floor, and the structural connection and load-bearing component are multiple groups, and the multiple groups of structural connection and load-bearing components are respectively fixed to the structural wall / structural column and the lower floor slab;

[0013] A plurality of H-shaped steels connected between the upper floor and the lower floor, the upper floor's hoist mounting bracket and the lower floor's structural connection and load-bearing components are connected as a whole through the H-shaped steels;

[0014] The reinforcement structure also includes:

[0015] A reinforcement wire rope assembly is connected between one end of the upper floor away from the elevator mounting bracket and the elevator mounting bracket.

[0016] Furthermore, the lifter mounting bracket includes:

[0017] A bottom H-shaped steel fixed to the upper floor, wherein the length of the bottom H-shaped steel is greater than 1 / 2 of the width of the upper floor, one end of the bottom H-shaped steel is flush with the edge of the upper floor, and the other end of the bottom H-shaped steel extends toward the other end of the upper floor;

[0018] A first inclined H-shaped steel and a second inclined H-shaped steel are obliquely disposed on the bottom H-shaped steel; and

[0019] A horizontal H-shaped steel connected to the upper ends of the first inclined H-shaped steel and the second inclined H-shaped steel, the horizontal H-shaped steel and the second inclined H-shaped steel both extend toward the outer side of the upper floor, and the hoist is fixed at a position near the end of the horizontal H-shaped steel;

[0020] A column is fixed between the first inclined H-shaped steel and the second inclined H-shaped steel.

[0021] Furthermore, reinforcement plates are welded and fixed at intervals on the surface of the H-shaped steel of the lifter mounting bracket.

[0022] Furthermore, the structural connection and load-bearing components are installed between the bottom H-shaped steel and the upper floor;

[0023] The structural connection and load-bearing components are also arranged at the position of the structural wall / structural column of the lower floor close to the lower floor, as well as at both ends and the middle of the lower floor;

[0024] The structural connection and load-bearing components include:

[0025] A plurality of slotted steel plates arranged at intervals, wherein the slotted steel plates are arranged on the outer sides of the structural walls / structural columns or corresponding floor plates; and

[0026] A rectangular steel plate connected to the inner side of the channel-shaped steel plate;

[0027] Embedded parts are provided at the overlapping positions of the grooved steel plate and the rectangular steel plate, and at the overlapping positions of the rectangular steel plate and the structural wall / structural column or the corresponding floor plate, and a threaded portion is processed at one end of the embedded part extending to the outside.

[0028] Furthermore, the multiple H-shaped steels connected between the upper floor and the lower floor are divided into:

[0029] Vertical H-beams located midway between the upper and lower floors; and

[0030] H-beams with inclined arrangement;

[0031] End plates are welded and fixed at both ends of the vertical H-shaped steel, and the end plates are connected to the rectangular steel plates of the structural connection and load-bearing components located in the middle of the upper floor and the lower floor, and the corresponding embedded parts pass through the end plates and are assembled and fixed by fastening nuts;

[0032] The end plate is provided with a circular through hole which matches with the corresponding embedded part.

[0033] Furthermore, one end of the connecting H-shaped steel is connected to the rectangular steel plate of the structural connection and load-bearing component at the middle position of the upper floor, and the other end is connected to the rectangular steel plate of the structural connection and load-bearing component of the lower floor and the structural wall / structural column;

[0034] The lower end of the connecting H-shaped steel is welded and fixed with a lower end connecting plate that matches the rectangular steel plates of the lower floor and the structural wall / structural column respectively, and the upper end of the connecting H-shaped steel is welded and fixed with an upper end connecting plate that is connected to the structural connection of the upper floor and the rectangular steel plates of the load-bearing components;

[0035] The lower end connecting plate and the upper end connecting plate are both provided with oblong holes matched with corresponding embedded parts, and are assembled and fixed by fastening nuts.

[0036] Furthermore, the lower end of the connecting H-shaped steel is processed with two mutually perpendicular inclined surfaces, and each inclined surface is welded and fixed with a lower end connecting plate, and the lower end connecting plate is parallel to the corresponding rectangular steel plate;

[0037] The upper end of the connecting H-shaped steel is processed with an inclined surface, and the inclined surface is welded and fixed with an upper end connecting plate.

[0038] Furthermore, the reinforcement wire rope assembly comprises:

[0039] Structural connections and load-bearing components between upper floors and structural walls / structural columns; and

[0040] At least two steel cables are connected between the structural connection and the load-bearing assembly and the riser mounting bracket.

[0041] Furthermore, a lifting ring is fixed to the outer end of the embedded part of the rectangular steel plate of the structural connection and load-bearing assembly;

[0042] One end of one of the steel wire ropes is connected to the lifting ring, and the other end is connected to the middle position of the first inclined H-shaped steel;

[0043] Another steel wire rope has one end connected to the lifting ring, and the other end connected to the connection between the first inclined H-shaped steel and the horizontal H-shaped steel.

[0044] The present invention also discloses a construction method of a lift reinforcement structure based on multi-floor superposition bearing. The construction method of the lift reinforcement structure as described above mainly comprises the following steps:

[0045] Step S1, laying the elevator installation bracket: after the civil construction is completed, the position of the elevator installation bracket is positioned on the lifting floor with ink lines and markings, and the bottom H-shaped steel is laid at the designed position;

[0046] Step S2, erecting a riser mounting bracket;

[0047] Step S3, installing structural connections and load-bearing components at the designed position of the lower floor;

[0048] Step S4, connecting three H-shaped steels between the upper floor and the lower floor, and assembling and fixing them through embedded parts and fasteners;

[0049] Step S5, connecting the reinforcement wire rope assembly;

[0050] Step S6, finally installing the lifters. When in use, a set of lifters is set on the towers on the left and right sides, and the two sets of lifters are used to hoist and lift the main body of the ground-assembled steel structure.

[0051] In the above technical solution, the present invention provides a reinforcement structure and construction method of a riser based on multi-floor superposition load-bearing, which has the following beneficial effects:

[0052] The reinforcement structure provided by the present invention adopts assembled embedded parts and finished steel plate connection components, and connects the upper and lower floor slabs together through I-beams, so that the upper floor can bear more loads, which can reduce the steel bars added for temporary load-bearing considerations during design, save costs, and most of the materials can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0054] Figure 1 It is a structural schematic diagram of a lift bracket in the prior art;

[0055] Figure 2 It is a structural schematic diagram of a riser reinforcement structure based on multi-floor superposition load-bearing disclosed in an embodiment of the present application;

[0056] Figure 3 A cross-sectional view of the structural connection and load-bearing components of the riser reinforcement structure based on multi-floor superposition load-bearing disclosed in the embodiment of the present application;

[0057] Figure 4 It is a schematic diagram of the arrangement of the connection plates connecting the H-shaped steels of the riser reinforcement structure based on multi-floor superposition load-bearing disclosed in the embodiment of the present application;

[0058] Figure 5 It is a schematic diagram of the usage status of the riser reinforcement structure based on multi-floor overlapping load-bearing disclosed in an embodiment of the present application.

[0059] Description of reference numerals:

[0060] 101, upper floor; 102, lower floor; 103, structural wall / structural column;

[0061] 2. Riser mounting bracket;

[0062] 201, bottom H-shaped steel; 202, first inclined H-shaped steel; 203, second inclined H-shaped steel; 204, horizontal H-shaped steel; 205, column;

[0063] 3. Lifter;

[0064] 4. Structural connections and load-bearing components;

[0065] 401, channel steel plate; 402, rectangular steel plate; 403, embedded parts;

[0066] 501, vertical H-shaped steel; 502, connecting H-shaped steel;

[0067] 50201, lower end connecting plate; 50202, upper end connecting plate;

[0068] 11. Left tower; 12. Right tower; 13. Suspension rope; 14. Ground-assembled steel structure. DETAILED DESCRIPTION

[0069] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0070] See also Figures 2 to 5 As shown;

[0071] This embodiment discloses a riser reinforcement structure based on multi-floor superposition bearing, the reinforcement structure comprising:

[0072] A lifter mounting bracket 2 fixed to the upper floor 101, the front end of the lifter mounting bracket 2 extending to the outside of the floor, and a lifter 3 is mounted on the end of the lifter mounting bracket 2 extending to the outside of the floor;

[0073] A structural connection and load-bearing component 4 fixed to the lower floor 102, and the structural connection and load-bearing component 4 is a plurality of groups, and the plurality of groups of structural connection and load-bearing components 4 are respectively fixed to the structural wall / structural column 103 and the lower floor 102;

[0074] A plurality of H-shaped steels are connected between the upper floor 101 and the lower floor 102, and the structure connection and the load-bearing component 4 of the upper floor 101 and the lower floor 102 are connected as a whole through the H-shaped steels;

[0075] The reinforced structure also includes:

[0076] A reinforcement wire rope assembly is connected between one end of the upper floor 101 away from the lifter mounting bracket 2 and the lifter mounting bracket 2 .

[0077] Specifically, this embodiment discloses a hoist reinforcement structure based on multi-floor superposition bearing, which includes a hoist installation bracket 2, a plurality of structural connections and load-bearing components 4, and an H-shaped steel as a connection between the upper floor 101 and the lower floor 102; wherein the hoist installation bracket 2 is integrated on the upper floor 101 and close to one side edge, and according to the connection position requirements of the upper floor 101 and the lower floor 102, a plurality of structural connections and load-bearing components 4 are respectively installed on the lower floor 102 and the structural wall / structural column 103; after being connected by three H-shaped steels, the upper floor 101 and the lower floor 102 are connected as a whole, thereby forming a reinforced structure with high stability and will not damage the foundation of the building structure. In order to further improve the stability, a reverse force is provided to one end of the hoist to pull the hoist installation bracket 2, and the device of this embodiment also includes a reinforcement wire rope assembly.

[0078] Preferably, the lifter mounting bracket 2 of this embodiment includes:

[0079] The bottom H-shaped steel 01 is fixed to the upper floor 101, and the length of the bottom H-shaped steel 201 is greater than 1 / 2 of the width of the upper floor 101, one end of the bottom H-shaped steel 201 is flush with the edge of the upper floor 101, and the other end of the bottom H-shaped steel 201 extends toward the other end of the upper floor 101; firstly, the length of the bottom H-shaped steel 201 of the present embodiment is greater than 1 / 2 of the width of the upper floor 101, so that when connected with the H-shaped steel of the lower floor 102, a larger effective area and higher structural stability can be ensured.

[0080] Secondly, it also includes a first inclined H-shaped steel 202 and a second inclined H-shaped steel 203 which are obliquely arranged on the bottom H-shaped steel 201; and

[0081] A horizontal H-shaped steel 204 connected to the upper ends of the first inclined H-shaped steel 202 and the second inclined H-shaped steel 203, the horizontal H-shaped steel 204 and the second inclined H-shaped steel 203 both extend toward the outside of the upper floor 101, and a lifter 3 is fixed near the end of the horizontal H-shaped steel 204;

[0082] A column 205 is fixed between the first inclined H-shaped steel 202 and the second inclined H-shaped steel 203 .

[0083] Based on the structure of the lifter mounting bracket 2 of the present embodiment, reinforcement plates are welded and fixed at intervals on the surface of the H-shaped steel 203 of the lifter mounting bracket 2 of the present embodiment.

[0084] The lifter mounting bracket 2 of the present embodiment is built on the upper floor 101 by welding, screw connection, fastener connection, etc.; according to the layout position, the position is planned and then built layer by layer.

[0085] Preferably, a structural connection and load-bearing component 4 is installed between the bottom H-shaped steel 201 and the upper floor 101 of this embodiment;

[0086] The structural connection and load-bearing components 4 are also arranged at the positions of the structural walls / structural columns 103 of the lower floor 102 close to the lower floor 102, as well as at both ends and the middle of the lower floor 102;

[0087] The structural connection and load-bearing components 4 include:

[0088] A plurality of slotted steel plates 401 arranged at intervals, wherein the slotted steel plates 401 are arranged on the outer sides of the structural wall / structural column 103 or the corresponding floor slab; and

[0089] A rectangular steel plate 402 connected to the inner side of the channel steel plate 401;

[0090] Embedded parts 403 are provided at the overlapping positions of the grooved steel plate 401 and the rectangular steel plate 402, and at the overlapping positions of the rectangular steel plate 402 and the structural wall / structural column 103 or the corresponding floor plate, and a threaded portion is processed at one end of the embedded part 403 extending to the outside.

[0091] First, the present embodiment sets the structural connection and load-bearing components 4 of the present application at multiple locations of the building, which are mainly composed of multiple grooved steel plates 401 and two symmetrically arranged rectangular steel plates 402. The grooved steel plates 401 are arranged at intervals along the width direction of the rectangular steel plates 402, and the rectangular steel plates 402 on both sides are fixed to the upper surface of the building by multiple grooved steel plates 401, and then multiple embedded parts 403 are arranged, and the ends of the embedded parts 403 extend to the outside, and the threaded parts are processed according to the installation requirements to provide convenient conditions for subsequent assembly.

[0092] Preferably, the multiple H-shaped steels connected between the upper floor 101 and the lower floor 102 of this embodiment are divided into:

[0093] A vertical H-shaped steel 501 located between the upper floor 101 and the lower floor 102; and

[0094] The connecting H-beam 502 is arranged obliquely;

[0095] End plates are welded and fixed at both ends of the vertical H-shaped steel 501, and the end plates are connected to the rectangular steel plates 402 of the structural connection and load-bearing assembly 4 located in the middle of the upper floor 101 and the lower floor 102, and the corresponding embedded parts 403 pass through the end plates and are assembled and fixed by fastening nuts;

[0096] The end plate is provided with a circular through hole that matches the corresponding embedded part 403 .

[0097] Preferably, one end of the connecting H-shaped steel 502 of this embodiment is connected to the rectangular steel plate 402 of the structural connection and load-bearing component 4 at the middle position of the upper floor 101, and the other end is connected to the rectangular steel plate 402 of the structural connection and load-bearing component 4 of the lower floor 102 and the structural wall / structural column 103;

[0098] The lower end of the H-shaped steel 502 is welded and fixed with a lower end connecting plate 50201 that matches the rectangular steel plates 402 of the lower floor 102 and the structural wall / structural column 103 respectively, and the upper end of the H-shaped steel 502 is welded and fixed with an upper end connecting plate 50202 that is connected to the structural connection of the upper floor 101 and the rectangular steel plate 402 of the load-bearing component 4;

[0099] The lower connecting plate 50201 and the upper connecting plate 50202 are both provided with oblong holes that match the corresponding embedded parts 403 and are assembled and fixed by fastening nuts.

[0100] In order to meet the assembly requirements of the vertical H-shaped steel 501 and the connecting H-shaped steel 502 and the corresponding structural connection and the load-bearing component 4, the lower end of the connecting H-shaped steel 502 of this embodiment is processed with two mutually perpendicular inclined surfaces, and each inclined surface is welded and fixed with a lower end connecting plate 50201, and the lower end connecting plate 50201 is parallel to the corresponding rectangular steel plate 402;

[0101] The upper end of the connecting H-shaped steel 502 of this embodiment is processed with an inclined surface, and the upper end connecting plate 50201 is welded and fixed to the inclined surface.

[0102] This embodiment further defines the connection method of the three H-shaped steels and the structural connection and load-bearing components 4 that connect the upper floor 101 and the lower floor 102 as a whole. The three H-shaped steels are arranged between the upper floor 101 and the lower floor 102, directly connected to the bottom of the lift installation bracket 2 of the upper floor 101, and act on the front and rear sides of the lower floor 102 in a large span manner, forming a large-span, high-stability connection structure, which effectively acts on the lift installation bracket 2 of the upper floor 101.

[0103] In order to further improve the structural stability and form a reverse tensile force on the hoist mounting bracket 2 to ensure that the end of the hoist 3 at the front end of the hoist mounting bracket 2 has higher stability, the present embodiment designs a reinforced wire rope assembly, which is specifically: the reinforced wire rope assembly includes a structural connection and load-bearing assembly 4 arranged between the upper floor 101 and the structural wall / structural column 103; and at least two steel ropes 602 connected between the structural connection and load-bearing assembly 4 and the hoist mounting bracket 2.

[0104] Different from the structure of the structural connection and load-bearing assembly 4 arranged at various positions of the above-mentioned lower floor 102, in this embodiment, a lifting ring 601 is fixed to the outer end of the embedded part 403 of the rectangular steel plate 402 of the structural connection and load-bearing assembly 4 of the upper floor 101;

[0105] One end of one of the steel wire ropes 602 is connected to the lifting ring 601, and the other end is connected to the middle position of the first inclined H-shaped steel 202;

[0106] Another steel wire rope 602 has one end connected to the lifting ring 601 , and the other end connected to the connection between the first inclined H-shaped steel 202 and the horizontal H-shaped steel 204 .

[0107] The present invention also discloses a construction method of a lift reinforcement structure based on multi-floor superposition bearing. The construction method of the lift reinforcement structure as described above mainly comprises the following steps:

[0108] Step S1, laying the lift installation bracket 2: after the civil construction is completed, the position of the lift installation bracket 2 is positioned on the lifting floor with ink lines and the bottom H-shaped steel 201 is laid at the designed position;

[0109] Step S2, erecting a lifter mounting bracket 2;

[0110] Step S3, installing the structural connection and load-bearing components 4 at the designed position of the lower floor 102;

[0111] Step S4, connecting three H-shaped steels between the upper floor 101 and the lower floor 102, and assembling and fixing them through embedded parts 403 and fasteners;

[0112] Step S5, connecting the reinforcement wire rope assembly;

[0113] Step S6, finally installing the lifter 3. When in use, a set of lifters 3 is set on the towers on the left and right sides, and the ground-assembled steel structure body 13 is hoisted and lifted by the two sets of lifters 3.

[0114] In the above technical solution, the present invention provides a reinforcement structure and construction method of a riser based on multi-floor superposition load-bearing, which has the following beneficial effects:

[0115] The reinforcement structure provided by the present invention adopts assembled embedded parts and finished steel plate connection components, and connects the upper and lower floor slabs together through I-beams, so that the upper floor can bear more loads, which can reduce the steel bars added for temporary load-bearing considerations during design, save costs, and most of the materials can be reused.

[0116] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lifting device reinforcement structure based on multi-floor superposition bearing, characterized in that: The reinforcement structure includes: A lifter mounting bracket (2) fixed to the upper floor (101), the front end of the lifter mounting bracket (2) extending to the outside of the floor, and a lifter (3) being mounted on the end of the lifter mounting bracket (2) extending to the outside of the floor; A structural connection and load-bearing component (4) fixed to the lower floor (102), wherein the structural connection and load-bearing component (4) is a plurality of groups, and the plurality of groups of the structural connection and load-bearing components (4) are respectively fixed to the structural wall / structural column (103) and the lower floor (102); A plurality of H-shaped steels are connected between the upper floor (101) and the lower floor (102), and the lifter mounting bracket (2) of the upper floor (101) and the structural connection and load-bearing component (4) of the lower floor (102) are connected as a whole through the H-shaped steels; The reinforcement structure also includes: A reinforcement wire rope assembly is connected between an end of the upper floor (101) away from the lifter mounting bracket (2) and the lifter mounting bracket (2).

2. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 1 is characterized in that: The lifter mounting bracket (2) comprises: A bottom H-shaped steel (201) fixed to the upper floor (101), wherein the length of the bottom H-shaped steel (201) is greater than 1 / 2 of the width of the upper floor (101), one end of the bottom H-shaped steel (201) is flush with the edge of the upper floor (101), and the other end of the bottom H-shaped steel (201) extends toward the other end of the upper floor (101); a first inclined H-shaped steel (202) and a second inclined H-shaped steel (203) which are arranged obliquely on the bottom H-shaped steel (201); and a horizontal H-shaped steel (204) connected to the upper ends of the first inclined H-shaped steel (202) and the second inclined H-shaped steel (203), wherein the horizontal H-shaped steel (204) and the second inclined H-shaped steel (203) both extend toward the outside of the upper floor (101), and the lifter (3) is fixed at a position close to the end of the horizontal H-shaped steel (204); A column (205) is fixed between the first inclined H-shaped steel (202) and the second inclined H-shaped steel (203).

3. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 2 is characterized in that: Reinforcement plates are welded and fixed at intervals on the surface of the H-shaped steel of the lifter mounting bracket (2).

4. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 2 is characterized in that: The structural connection and load-bearing component (4) is installed between the bottom H-shaped steel (201) and the upper floor (101); The structural connection and load-bearing components (4) are also arranged at the position of the structural wall / structural column (103) of the lower floor (102) close to the lower floor (102), as well as at both ends and the middle of the lower floor (102); The structural connection and load-bearing component (4) comprises: A plurality of slotted steel plates (401) arranged at intervals, wherein the slotted steel plates (401) are arranged on the outer sides of the structural wall / structural column (103) or the corresponding floor slab; and A rectangular steel plate (402) connected to the inner side of the channel-shaped steel plate (401); Embedded parts (403) are provided at the overlapping positions of the grooved steel plate (401) and the rectangular steel plate (402), and at the overlapping positions of the rectangular steel plate (402) and the structural wall / structural column (103) or the corresponding floor plate, and one end of the embedded part (403) extending to the outside is processed with a threaded portion.

5. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 4 is characterized in that: The plurality of H-shaped steels connected between the upper floor (101) and the lower floor (102) are divided into: A vertical H-shaped steel (501) located between the upper floor (101) and the lower floor (102); and An inclined connecting H-shaped steel (502); End plates are welded and fixed at both ends of the vertical H-shaped steel (501), and the end plates are connected to the rectangular steel plates (402) of the structural connection and load-bearing components (4) located in the middle of the upper floor (101) and the lower floor (102), and the corresponding embedded parts (403) pass through the end plates and are assembled and fixed by fastening nuts; The end plate is provided with a circular through hole which matches with the corresponding embedded part (403).

6. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 5 is characterized in that: One end of the connecting H-shaped steel (502) is connected to the rectangular steel plate (402) of the structural connection and load-bearing component (4) at the middle position of the upper floor (101), and the other end is connected to the rectangular steel plate (402) of the structural connection and load-bearing component (4) of the lower floor (102) and the structural wall / structural column (103); The lower end of the connecting H-shaped steel (502) is welded and fixed with a lower end connecting plate (50201) that matches the rectangular steel plates (402) of the lower floor (102) and the structural wall / structural column (103) respectively, and the upper end of the connecting H-shaped steel (502) is welded and fixed with an upper end connecting plate (50202) that is connected to the structural connection of the upper floor (101) and the rectangular steel plate (402) of the load-bearing component (4); The lower end connecting plate (50201) and the upper end connecting plate (50202) are both provided with oblong holes that match the corresponding embedded parts (403) and are assembled and fixed by fastening nuts.

7. The riser reinforcement structure based on multi-story superposition load-bearing according to claim 6 is characterized in that: The lower end of the connecting H-shaped steel (502) is processed with two mutually perpendicular inclined surfaces, and each inclined surface is welded and fixed with a lower end connecting plate (50201), and the lower end connecting plate (50201) is parallel to the corresponding rectangular steel plate (402); The upper end of the connecting H-shaped steel (502) is processed with an inclined surface, and the inclined surface is welded and fixed with an upper end connecting plate (50202).

8. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 4 is characterized in that: The reinforced steel wire rope assembly comprises: A structural connection and load-bearing assembly (4) disposed between the upper floor (101) and the structural wall / structural column (103); and At least two steel wire ropes (602) are connected between the structural connection and load-bearing component (4) and the lifter mounting bracket (2).

9. The riser reinforcement structure based on multi-floor superposition load-bearing according to claim 8 is characterized in that: A lifting ring (601) is fixed to the outer end of the embedded part (403) of the rectangular steel plate (402) of the structural connection and load-bearing component (4); One end of one of the steel wire ropes (602) is connected to the lifting ring (601), and the other end is connected to the middle position of the first inclined H-shaped steel (202); Another steel wire rope (602) has one end connected to the lifting ring (601), and the other end connected to the connection point between the first inclined H-shaped steel (202) and the horizontal H-shaped steel (204).

10. A construction method for a riser reinforcement structure based on multi-story superimposed load bearing, characterized in that: The construction method of the lift reinforcement structure according to any one of claims 1 to 9 mainly comprises the following steps: Step S1, laying the lift installation bracket (2): after the civil construction is completed, the position of the lift installation bracket (2) is positioned on the lifting floor using ink lines and markings, and the bottom H-shaped steel (201) is laid at the designed position; Step S2, erecting a lifter mounting bracket (2); Step S3, installing the structural connection and load-bearing components (4) at the designed position of the lower floor (102); Step S4, connecting three H-shaped steels between the upper floor (101) and the lower floor (102), and assembling and fixing them through embedded parts (403) and fasteners; Step S5, connecting the reinforcement wire rope assembly; Step S6, finally installing the lifter (3). When in use, a set of lifters (3) are arranged on the towers on the left and right sides, and the ground-assembled steel structure main body (14) is hoisted and lifted by the two sets of lifters (3).

Images