Steel structure davit and construction method thereof

Abstract

The embodiment of the invention provides a steel structure davit and a construction method thereof, the steel structure davit is applied to hoisting of a cantilever concrete plate, and the steel structure davit comprises a davit body, a connecting assembly, an upper concrete structure plate, a cantilever structure beam plate and a jack; the top of the davit body is connected with the upper concrete structural slab through the connecting assembly. The bottom of the davit body is connected with the cantilever structure beam plate through the connecting assembly. The two ends of the jack are perpendicularly connected to the connecting assembly and the cantilever structure beam plate correspondingly. And the davit body, the upper concrete structural slab and the cantilever structural beam slab are vertically and coaxially arranged. In the embodiment, the cantilever structure beam plate is connected with the concrete structure plate above through the davit body, the perpendicularity of the davit body is rechecked through the jack while it is ensured that the cantilever structure beam plate, the concrete structure plate and the davit body are vertically coaxial, the cantilever structure beam plate and the davit body are suitable for hoisting various cantilever concrete plates, and the construction quality and reliability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a steel structure hanging column and a construction method thereof. Background Art

[0002] In recent years, with the rapid development of my country's construction industry, various types of buildings have sprung up like mushrooms after rain. In pursuit of the integration of beauty and practicality, many buildings have designed unique shapes, and cantilevered panels of various lengths are one of them. As a special form of building structure, cantilevered panels need to meet the functional requirements of large space structures below, and there are no structural columns. Therefore, they rely on the upper suspension columns to ensure the structural force safety of the panels, and have been widely used in modern buildings.

[0003] Due to the diversity of cantilever slab structures, the construction methods of each project are different, so it is difficult to unify and standardize the construction quality. Especially in the installation of hanging columns, concrete pouring, tension control, etc., if the construction technology is not in place (for example, the balance control is not up to standard, the tension is insufficient), it is easy to cause structural instability and safety hazards. Summary of the invention

[0004] The embodiments of the present invention provide a steel structure hanging column and a construction method thereof, aiming to solve the problems of low construction quality and unreliability caused by the structural diversity of cantilever hanging plates.

[0005] In the first aspect, an embodiment of the present invention provides a steel structure suspension column, which is used for the lifting of cantilevered concrete slabs, and includes a suspension column body, a connecting assembly, an upper concrete structure slab, a cantilevered structural beam slab and a jack; the top of the suspension column body is connected to the upper concrete structure slab through the connecting assembly; the bottom of the suspension column body is connected to the cantilevered structural beam slab through the connecting assembly; the two ends of the jack are respectively vertically connected to the connecting assembly and the cantilevered structural beam slab; the suspension column body, the upper concrete structure slab and the cantilevered structural beam slab are vertically coaxially arranged.

[0006] In some embodiments, the connection assembly includes embedded parts, connecting plates and end plates; the embedded parts are connected to the end plates through the connecting plates; the connecting plates are vertically connected to the end plates; the end plates are respectively connected to the top and bottom of the suspension column body; the embedded parts are respectively connected to the upper concrete structure plate and the cantilever structure beam plate.

[0007] In some embodiments, the end plate includes an upper end plate and a lower end plate; the upper end plate is connected to the upper concrete structure plate and the top of the suspension column body on two opposite sides; the lower end plate is connected to the cantilever structure beam plate and the bottom of the suspension column body on two opposite sides.

[0008] In some embodiments, the connecting plate includes an upper connecting plate and a lower connecting plate; one side of the upper connecting plate is vertically connected to the end surface of the upper end plate facing the upper concrete structure plate, and the other side is connected to the embedded part; one side of the lower connecting plate is vertically connected to the end surface of the lower end plate facing the cantilever structure beam plate, and the other side is connected to the embedded part; a first through hole is provided on the upper connecting plate; and a second through hole is provided on the lower connecting plate.

[0009] In some embodiments, the embedded parts include upper embedded parts and lower embedded parts; the upper embedded parts are connected to the lower embedded parts through the suspension column body; the upper embedded parts are connected to the interior of the upper concrete structural slab; and the lower embedded parts are connected to the cantilever structural beam slab.

[0010] In some embodiments, the upper embedded parts include a top plate, a bottom plate and a plurality of vertical plates; the top plate is vertically connected to the tops of the plurality of vertical plates; the bottom plate is vertically connected to the bottoms of the plurality of vertical plates; the plurality of vertical plates are spaced between the top plate and the bottom plate; the top plate is adjacent to the upper surface of the upper concrete structural plate; the bottom plate is adjacent to the lower surface of the upper concrete structural plate.

[0011] In some embodiments, the lower embedded parts include a transverse plate, a fixed plate, a plurality of anchor plates and a plurality of anchor bars; the bottom of the fixed plate is vertically connected to the upper surface of the transverse plate; the fixed plate is connected to the lower end plate through the lower connecting plate; the lower surface of the transverse plate is adjacent to the bottom of the cantilevered structural beam plate; a plurality of the anchor plates are perpendicular to the upper surface of the transverse plate; a plurality of the anchor plates are spaced apart on opposite sides of the fixed plate; a plurality of the anchor bars are spaced apart on the fixed plate; the transverse plate, a plurality of the anchor plates and a plurality of the anchor bars are all arranged inside the cantilevered structural beam plate.

[0012] In some embodiments, the connecting assembly also includes a connecting piece and an upper lifting ear; the upper lifting ear is vertically connected to the bottom of the fixing plate; a third through hole is provided on the upper lifting ear; the third through hole is opposite to the first through hole to form a first connecting hole; the second through hole is opposite to the fourth through hole on the fixing plate to form a second connecting hole; the connecting piece is respectively passed through the first connecting hole and the second connecting hole.

[0013] In some embodiments, the top of the jack abuts against the lower end plate, and the bottom of the jack abuts against the cantilever structure beam plate.

[0014] In a second aspect, an embodiment of the present invention further provides a construction method of a steel structure suspender column, which is applied to the steel structure suspender column in any of the aforementioned embodiments, and the method comprises:

[0015] The deflection of the cantilever structure beam under its own weight is calculated by using the calculation software, and the beam is pre-arched during construction according to the deflection value;

[0016] The suspender body, embedded parts, structural steel bars and prestressed corrugated pipes are designed in depth through the building information model;

[0017] Transporting the first integrated body consisting of the suspender body, the upper end plate and the upper connecting plate, as well as other components constituting the steel structure suspender;

[0018] Fix the cantilever structure beam slab and the embedded parts below, as well as the upper concrete structure slab and the embedded parts above in sequence;

[0019] Lifting the first integrated body and correcting the verticality of the sling body, connecting and fixing the upper connecting plate in the first integrated body to the upper embedded part through the upper lifting lug, and checking the verticality of the sling body;

[0020] A second integrated body is formed by a lower end plate and a lower connecting plate, and one end of the second integrated body is connected to a lower embedded part through a connecting piece;

[0021] The second integrated body is leveled by a jack, and the other end of the second integrated body is fixed to the suspension column body.

[0022] The embodiment of the present invention provides a steel structure hanging column and a construction method thereof, which are applied to the hoisting of cantilevered concrete slabs, and include a hanging column body, a connection assembly, an upper concrete structure slab, a cantilevered structural beam slab, and a jack; the top of the hanging column body is connected to the upper concrete structure slab through the connection assembly; the bottom of the hanging column body is connected to the cantilevered structural beam slab through the connection assembly; the two ends of the jack are respectively vertically connected to the connection assembly and the cantilevered structural beam slab; the hanging column body, the upper concrete structure slab, and the cantilevered structural beam slab are vertically coaxially arranged. In this embodiment, the cantilevered structural beam slab is connected to the upper concrete structure slab through the hanging column body, and the verticality of the hanging column body is checked by the jack while ensuring the vertical coaxiality of the three. It is suitable for hoisting various types of cantilevered concrete slabs, and improves the construction quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the main structure of a steel structure suspender provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the side structure of a steel structure suspender provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of a partial structure of a steel structure suspender provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of the connection between the lower connecting plate, the lower end plate and the sling body in the steel structure sling provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the main structure of the connection between the upper embedded part and the upper lifting ear in the steel structure suspension column provided by an embodiment of the present invention;

[0029] Figure 6 A schematic side view of the structure of the connection between the upper embedded part and the upper lifting ear of the steel structure suspension column provided in an embodiment of the present invention;

[0030] Figure 7 A schematic side view of the structure of the lower embedded parts in the steel structure suspension column provided in an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the main structure of the lower embedded parts in the steel structure suspension column provided in an embodiment of the present invention;

[0032] Fig. 9 A schematic flow chart of a construction method for a steel structure suspension column provided in an embodiment of the present invention.

[0033] The figures are as follows:

[0034] 100. Column body; 200. Connection assembly; 210. Embedded parts; 211. Upper embedded parts; 2111. Top plate; 2112. Bottom plate; 2113. Vertical plate; 212. Lower embedded parts; 2121. Horizontal plate; 2122. Fixed plate; 2123. Anchor plate; 2124. Anchor bar; 220. Connecting plate; 221. Upper connecting plate; 222. Lower connecting plate; 230. End plate; 231. Upper end plate; 232. Lower end plate; 240. Connecting parts; 250. Upper lifting lug; 300. Upper concrete structural plate; 400. Cantilevered structural beam plate; 500. Jack. DETAILED DESCRIPTION

[0035] 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 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.

[0036] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0037] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0038] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] See also Figures 1 to 9 , Figure 1 A schematic diagram of the main structure of a steel structure suspender provided in an embodiment of the present invention; Figure 2 A schematic diagram of the side structure of a steel structure suspender provided in an embodiment of the present invention; Figure 3 A schematic diagram of a partial structure of a steel structure suspender provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the connection between the lower connecting plate, the lower end plate and the sling body in the steel structure sling provided by an embodiment of the present invention; Figure 5 A schematic diagram of the main structure of the connection between the upper embedded part and the upper lifting ear in the steel structure suspension column provided by an embodiment of the present invention; Figure 6 A schematic side view of the structure of the connection between the upper embedded part and the upper lifting ear of the steel structure suspension column provided in an embodiment of the present invention; Figure 7 A schematic side view of the structure of the lower embedded parts in the steel structure suspension column provided in an embodiment of the present invention;

[0040] Figure 8 A schematic diagram of the main structure of the lower embedded parts in the steel structure suspension column provided in an embodiment of the present invention; Fig. 9 A schematic flow chart of a construction method for a steel structure suspension column provided in an embodiment of the present invention.

[0041] See again Figures 1 to 3The steel structure suspension column provided in an embodiment of the present invention is applied to the lifting of cantilevered concrete slabs, and includes a suspension column body 100, a connecting assembly 200, an upper concrete structure slab 300, a cantilevered structural beam slab 400 and a jack 500; the top of the suspension column body 100 is connected to the upper concrete structure slab 300 through the connecting assembly 200; the bottom of the suspension column body 100 is connected to the cantilevered structural beam slab 400 through the connecting assembly 200; the two ends of the jack 500 are respectively vertically connected to the connecting assembly 200 and the cantilevered structural beam slab 400; the suspension column body 100, the upper concrete structure slab 300 and the cantilevered structural beam slab 400 are vertically coaxially arranged.

[0042] In this embodiment, the column body 100, the upper concrete structure plate 300 and the cantilever structure beam plate 400 are coaxially arranged in the vertical direction, ensuring that the force axes between the column body 100, the upper concrete structure plate 300 and the cantilever structure beam plate 400 are consistent, avoiding asymmetric force or tilt in the structure, and improving the verticality and stability of the overall structure. Specifically, the column body 100 is arranged between the upper concrete structure plate 300 and the cantilever structure beam plate 400, wherein the top thereof is connected to the upper concrete structure plate 300 through the connecting assembly 200, and the bottom thereof is connected to the cantilever structure beam plate 400 through the connecting assembly 200. That is, in the vertical direction, the upper concrete structure plate 300 is located directly above the top of the column body 100, and the cantilever structure beam plate 400 is located directly below the bottom of the column body 100. On the one hand, the upper concrete structure plate 300 connected to the top of the column body 100 ensures the stability of the column body 100 when subjected to force, and can effectively disperse external forces to avoid deformation or tilting due to uneven force; on the other hand, the bottom of the column body 100 is connected and fixed to the cantilever structure beam plate 400 through the connecting component 200, and the stability of the entire cantilever structure beam plate 400 can be effectively ensured by transmitting tension in the vertical direction.

[0043] In addition, the jack 500 can be a small jack, and its number is set according to actual needs. The top of the jack 500 abuts on the connection assembly 200, and the bottom abuts on the end surface of the cantilever structure beam plate 400 facing the upper concrete structure plate 300. By flexibly adjusting the jack 500, the verticality of the hanging column body 100 in the vertical direction can be checked, so as to ensure that it reaches the verticality required for construction and maintains vertical force, effectively avoiding the problem of poor construction quality of the cantilever structure beam plate 400 caused by insufficient verticality.

[0044] In one embodiment, if Figure 1 to Figure 2As shown, the connection assembly 200 includes an embedded part 210, a connecting plate 220 and an end plate 230; the embedded part 210 is connected to the end plate 230 through the connecting plate 220; the connecting plate 220 is vertically connected to the end plate 230; the end plate 230 is respectively connected to the top and bottom of the suspension column body 100; the embedded part 210 is respectively connected to the upper concrete structure plate 300 and the cantilever structure beam plate 400.

[0045] In this embodiment, the prefabricated end plate 230 can be a metal plate connected to the top or bottom of the suspender body 100, and its vertical section is in the shape of an inverted "I". The connecting plate 220 can be a metal plate of moderate thickness, and its flatness and verticality are ensured by precision processing. One side of the connecting plate 220 is fixed to the end plate 230 by welding or high-strength bolts to ensure a firm vertical connection between the two. The embedded part 210 is usually pre-processed and formed, and has a fixed end surface connected to the concrete structure (such as the upper concrete structure plate 300 or the cantilever structure beam plate 400), and often adopts an anchoring or embedded connection design. The prefabricated end plate 230 is fixed at the top and bottom of the suspender body 100 respectively. The connection between the end plate 230 and the suspender body 100 provides stable support and constraint for the suspender, makes the force of the entire structural system more reasonable, and improves the bearing capacity of the structure. The installation of the end plate 230 ensures that it is consistent with the central axis of the suspender to ensure the overall vertical coaxiality.

[0046] The connecting plate 220 is vertically connected to the end plate 230. On-site welding or high-strength bolt connection can be used here, and it is ensured that the connecting plate 220 is perpendicular to the end plate 230, so as to form a vertical force transmission channel. The setting of the connecting plate 220 and the end plate 230 further enhances the reliability of the connection, and at the same time disperses the force transmission path to avoid the force being concentrated at a certain point. The embedded part 210 is fixed to the end plate 230 through the connecting plate 220, wherein the installation position of the embedded part 210 should correspond to the upper concrete structure plate 300 and the cantilever structure beam plate 400, so as to facilitate the subsequent connection of the upper concrete structure plate 300 or the cantilever structure beam plate 400 with the embedded part 210 through anchoring or other fixing methods. In the construction of the concrete structure, the upper concrete structure plate 300 and the cantilever structure beam plate 400 are respectively firmly connected to the embedded part 210 through reserved holes or welding interfaces, so as to form an integral force-bearing structure.

[0047] In one embodiment, if Figures 1 to 4 As shown, the end plate 230 includes an upper end plate 231 and a lower end plate 232; the upper end plate 231 is connected to the upper concrete structure plate 300 and the top of the suspension column body 100 on two opposite sides; the lower end plate 232 is connected to the cantilever structure beam plate 400 and the bottom of the suspension column body 100 on two opposite sides.

[0048] In this embodiment, the upper end plate 231 and the lower end plate 232 have the same size, which can be set according to actual construction needs, and no specific restrictions are made on their sizes. The upper end plate 231 is located above the lower end plate 232, wherein one side of the upper end plate 231 is fixed to the top of the suspender body 100, and the other side thereof is connected to the embedded part 210 in the upper concrete structure plate 300 through the connecting plate 220; one side of the lower end plate 232 is fixed to the bottom of the suspender body 100, and the other side thereof is connected to the embedded part 210 in the cantilever structure beam plate 400 through the connecting plate 220.

[0049] The upper end plate 231 and the lower end plate 232 are connected to different structural components, respectively, so that various loads (such as vertical gravity, horizontal wind force and earthquake force) borne by the suspender body 100 can be effectively transmitted to the upper concrete structure plate 300 and the cantilever structure beam plate 400 through the upper end plate 231, the lower end plate 232 and the connecting plate 220. This transmission path evenly disperses the stress, avoids single-point stress concentration, significantly improves the bearing capacity of the connection part, and effectively guarantees the stability of the overall structure of the building. In addition, the end plate 230 increases the connection contact area, making the force transmission smoother, and different structures work together to enhance the rigidity and stability of the overall structure of the building.

[0050] Specifically, during the prefabrication stage in the factory, the upper end plate 231 and the lower end plate 232 can be modeled in detail through Computer Aided Design (CAD) software and Building Information Modeling (BIM) software to clarify the size of each connection part and the installation hole position. Then, in a professional workshop, the upper end plate 231 and the lower end plate 232 with the required precision are manufactured through CNC cutting, welding and drilling processes. The upper end plate 231, the lower end plate 232 and the connecting plate 220 are prefabricated in the factory, and their precision is easy to control. During on-site installation, it is only necessary to connect the prefabricated upper end plate 231, the lower end plate 232 and the connecting plate 220 with other components according to the design, which reduces the complex processing on site and improves the construction efficiency.

[0051] During the assembly stage at the construction site, the prefabricated upper end plate 231 is installed on the top of the column body 100, and high-strength bolts or on-site welding can be used to fix it, and a mounting surface that is connected to the upper concrete structure plate 300 is reserved in advance. After being installed and fixed to the top of the column body 100, a positioning instrument can be used to ensure that the central axis of the upper end plate 231 and the column body 100 coincide. Similarly, the lower end plate 232 is installed on the bottom of the column body 100, and high-strength bolts or on-site welding can be used to connect and fix it to the bottom of the column body 100, and a mounting surface that is connected to the cantilever structure beam plate 400 is reserved at the same time, and the overall verticality of the lower end plate 232 and the column body 100 is checked to ensure its installation accuracy.

[0052] Whether it is a connection method using high-strength bolts or a connection method using on-site welding, the tightness of the connection between the upper end plate 231 and the column body 100, and the lower end plate 232 and the column body 100 can be ensured, and the stress can be effectively transmitted to improve the overall stability and reliability of the structure. In addition, the guarantee of installation accuracy and the standardized connection method make it easier to inspect and evaluate the connection parts in subsequent structural inspection and maintenance.

[0053] In one embodiment, if Figures 1 to 4 As shown, the connecting plate 220 includes an upper connecting plate 221 and a lower connecting plate 222; one side of the upper connecting plate 221 is vertically connected to the end surface of the upper end plate 231 facing the upper concrete structure plate 300, and the other side is connected to the embedded part 210; one side of the lower connecting plate 222 is vertically connected to the end surface of the lower end plate 232 facing the cantilever structure beam plate 400, and the other side is connected to the embedded part 210; a first through hole is provided on the upper connecting plate 221; and a second through hole is provided on the lower connecting plate 222.

[0054] In this embodiment, the upper connecting plate 221 and the lower connecting plate 222 are usually made of steel that matches the material of the end plate 230 and the embedded parts 210, such as Q345B low-alloy high-strength structural steel, to ensure good mechanical properties and welding properties. The upper connecting plate 221 and the lower connecting plate 222 have the same size and can be set according to actual construction needs. Among them, taking the setting of the upper connecting plate 221 as an example, the number of the upper connecting plates 221 is two, and the two upper connecting plates 221 are relatively spaced and both are perpendicular to the end surface of the upper end plate 231 facing the upper concrete structure plate 300. The upper connecting plate 221 is vertically connected to the upper end plate 231 to ensure that the load of the upper concrete structure plate 300 can be directly transmitted to the suspension column body 100 in the vertical direction, thereby realizing the continuity of the vertical force transmission path. A first through hole is provided on the upper connecting plate 221 . The position of the first through hole is determined according to the force transmission and installation alignment requirements. The first through hole is used to penetrate a high-strength bolt or a butt pin to achieve precise connection between the upper embedded part 211 and the upper connecting plate 221 .

[0055] Similarly, there are two lower connecting plates 222, which are arranged at intervals relative to each other and are both perpendicular to the end surface of the lower end plate 232 facing the cantilevered structural beam plate 400. The lower connecting plate 222 is vertically connected to the lower end plate 232 to ensure that the load of the cantilevered structural beam plate 400 can be directly transmitted to the hanging column in the vertical direction, reducing the bending moment and improving the overall stability. A second through hole is provided on the lower connecting plate 222, and the position of the second through hole is determined according to the force transmission and installation alignment requirements. Its function is the same as that of the first through hole, so as to achieve accurate connection between the lower embedded part 212 and the lower connecting plate 222.

[0056] Specifically, the upper end plate 231 and the lower end plate 232 are fixed at the top and bottom of the suspension column body 100, respectively, to ensure that the upper end plate 231 and the lower end plate 232 are coaxial with the suspension column body 100, and the reserved installation surface of the upper end plate 231 faces the upper concrete structure plate 300, and the reserved installation surface of the lower end plate 232 faces the cantilever structure beam plate 400. One side of the upper connecting plate 221 is vertically fixed to the upper end plate 231, ensuring that the installation surface is completely in contact with the contact surface of the upper end plate 231; at the same time, the first through hole on the upper connecting plate 221 is used to dock with the upper embedded part 211, and can be fixed and connected by high-strength bolts. Similarly, the lower connecting plate 222 is fixed to the installation surface of the lower end plate 232. One side of it is set to be vertically fixed to the lower end plate 232, and fixed to the lower embedded part 212 through the second through hole on the lower connecting plate 222, and can be specifically connected and fixed by high-strength bolts penetrating the second through hole and the fourth through hole on the lower embedded part 212 to achieve connection and fixation between the two. During the installation process of the upper connecting plate 221 and the upper end plate 231, and the lower connecting plate 222 and the lower end plate 232, a total station or a laser level can be used to detect the verticality and coaxiality between the upper connecting plate 221, the lower connecting plate 222, the upper end plate 231, the lower end plate 232, the suspension column body 100 and the embedded part 210 to ensure that all components are arranged along the same force axis.

[0057] For the first through hole, a docking pin or a positioning bolt can be temporarily installed, and after the first through hole is aligned with the connection position of the embedded part 210 (specifically the upper embedded part 211 here) (i.e., the third through hole on the upper lifting ear 250), it can be tightened to ensure that there is no deviation between the upper connecting plate 221 and the upper embedded part 211, forming a stable force transmission channel. Similarly, for the second through hole, the same operation as the first through hole can be taken, and after the second through hole is aligned with the connection position of the embedded part 210 (specifically, the lower embedded part 212 here) (i.e., the fourth through hole on the lower embedded part 212), it can be tightened to form a tight force transmission channel.

[0058] In one embodiment, if Figures 1 to 3 As shown, the embedded part 210 includes an upper embedded part 211 and a lower embedded part 212; the upper embedded part 211 is connected to the lower embedded part 212 through the suspension column body 100; the upper embedded part 211 is connected to the interior of the upper concrete structure plate 300; the lower embedded part 212 is connected to the cantilever structure beam plate 400.

[0059] In this embodiment, the upper embedded part 211 and the lower embedded part 212 can be made of steel that can meet the requirements of long-term stress and corrosion resistance, such as Q235B or Q345B steel, which has good strength and weldability. Its size is set according to the actual construction needs. Before the upper concrete structure slab 300 is poured, the line is accurately laid out on the template according to the design drawings, and the position of the upper embedded part 211 is determined to ensure that the upper hanging ear 250 at the bottom of the upper embedded part 211 can be matched with the installation position reserved between the two upper connecting plates 221. The upper embedded part 211 is fixed to the template by the positioning steel bar inside the upper concrete structure slab 300 to prevent the upper embedded part 211 from shifting during the concrete pouring process. For example, spot welding is used to fix the positioning steel bar at the intersection with the template, and the upper embedded part 211 is connected by binding or welding. During the concrete pouring process, the vibrator avoids directly touching the upper embedded part 211 to prevent its position from changing, thereby realizing the internal integral connection between the upper concrete structure slab 300 and the upper embedded part 211.

[0060] After the cantilever structure beam 400 is supported, before the steel bars are tied, the lower embedded part 212 is installed on the template according to the designed position and fixed by the positioning steel bars. During the steel bar tying process, pay attention to avoid the position of the lower embedded part 212 to ensure that the steel bar arrangement around the lower embedded part 212 meets the design requirements. When pouring concrete, strengthen the vibration of the lower embedded part 212 to ensure that the concrete is tightly combined with the lower embedded part 212.

[0061] After the concrete pouring and fixing between the upper embedded parts 211 and the upper concrete structural plate 300, and between the lower embedded parts 212 and the cantilever structural beam plate 400 is completed, a total station or a laser level is promptly used to check whether the upper embedded parts 211 at the top of the suspension column body 100 and the lower embedded parts 212 at the bottom thereof are arranged along the same central axis to ensure that the forces of the upper concrete structural plate 300 and the cantilever structural beam plate 400 can be transmitted along the vertical axis to achieve stable lifting of the cantilever structural beam plate 400.

[0062] After the upper embedded part 211 and the lower embedded part 212 are integrally connected through the suspender body 100, a continuous force transfer path is formed from the upper concrete structure plate 300 to the cantilever structure beam plate 400, ensuring that the load is evenly transferred along the design direction and reducing local stress concentration.

[0063] Specifically, Figures 5 and 6As shown, the upper embedded part 211 includes a top plate 2111, a bottom plate 2112 and a plurality of vertical plates 2113; the top plate 2111 is vertically connected to the tops of the plurality of vertical plates 2113; the bottom plate 2112 is vertically connected to the bottoms of the plurality of vertical plates 2113; the plurality of vertical plates 2113 are spaced apart between the top plate 2111 and the bottom plate 2112; the top plate 2111 is adjacent to the upper surface of the upper concrete structure plate 300; the bottom plate 2112 is adjacent to the lower surface of the upper concrete structure plate 300.

[0064] In this embodiment, the top plate 2111, the bottom plate 2112 and the plurality of vertical plates 2113 can be made of high-strength steel of the same material, such as Q345B steel. The sizes of the top plate 2111, the bottom plate 2112 and the plurality of vertical plates 2113 are set according to actual construction needs. In the factory workshop, the top plate 2111, the bottom plate 2112 and the plurality of vertical plates 2113 can be processed by CNC cutting, punching, welding and other processes, and polishing and pretreatment are performed at each connection part to ensure that the connection surface is flat and the dimensional tolerance is controlled within ±1mm. The upper embedded parts 211 prefabricated in the factory can be strictly controlled in size and processing accuracy, and only positioning and docking are required during on-site installation, which reduces on-site construction errors and improves overall installation accuracy and construction efficiency.

[0065] Specifically, the lower surface of the top plate 2111 is fixed to the top of each vertical plate 2113 by vertical welding or high-strength bolts. The weld or bolt connection positions should be evenly distributed to ensure uniform force. Similarly, the upper surface of the bottom plate 2112 is vertically connected and fixed to the bottom of each vertical plate 2113. When connecting, it should be ensured that each vertical plate 2113 is kept vertical to the top plate 2111 and the bottom plate 2112 to form a solid frame structure. Several vertical plates 2113 are evenly spaced between the top plate 2111 and the bottom plate 2112 according to design requirements, which not only ensures the rigidity of the overall component, but also facilitates the subsequent binding and docking with the internal steel bars or anchors of the upper concrete structure plate 300.

[0066] During on-site installation, the upper embedded part 211 is installed as a whole in the upper concrete structural plate 300. Specifically, the upper surface of the top plate 2111 is adjacent to the upper surface of the concrete structural plate, and a rigid embedding is formed with the steel mesh or binding parts in the concrete by using the reserved holes. The lower surface of the bottom plate 2112 is adjacent to the lower surface of the upper concrete structural plate 300, and is also connected to the steel bars in the concrete by chemical anchors or high-strength bolts. Thus, the upper embedded part 211 and the upper concrete structural plate 300 can form an integral force system. After the upper embedded part 211 prefabricated by the bottom plate 2112, the top plate 2111 and a number of vertical plates 2113 are transported to the site, they are accurately placed in the preset position in the upper concrete structural plate 300 by hoisting equipment according to the design of the construction drawings. Use a total station or a laser level to perform precise positioning to ensure that the top plate 2111 is in full contact with the upper surface of the concrete plate and the bottom plate 2112 is in contact with the lower surface.

[0067] In one embodiment, if Figures 7 and 8 As shown, the lower embedded part 212 includes a transverse plate 2121, a fixed plate 2122, a plurality of anchor plates 2123 and a plurality of anchor bars 2124; the bottom of the fixed plate 2122 is vertically connected to the upper surface of the transverse plate 2121; the fixed plate 2122 is connected to the lower end plate 232 through the lower connecting plate 222; the lower surface of the transverse plate 2121 is adjacent to the bottom of the cantilever structure beam plate 400; a plurality of the anchor plates 2123 are perpendicular to the upper surface of the transverse plate 2121; a plurality of the anchor plates 2123 are arranged at intervals on the opposite sides of the fixed plate 2122; a plurality of the anchor bars 2124 are arranged at intervals on the fixed plate 2122; the transverse plate 2121, a plurality of the anchor plates 2123 and a plurality of the anchor bars 2124 are all arranged inside the cantilever structure beam plate 400.

[0068] In this embodiment, high-strength steel (such as Q345 or structural steel of equivalent strength grade) can be used for the horizontal plate 2121, the fixed plate 2122, the anchor plate 2123 and the anchor bar 2124 to ensure that they have sufficient bearing capacity and durability. Anti-rust treatment (such as hot-dip galvanizing or epoxy coating) is performed on the surface of the horizontal plate 2121, the fixed plate 2122, the anchor plate 2123 and the anchor bar 2124 to ensure corrosion resistance and long-term reliability. The size specifications of the horizontal plate 2121, the fixed plate 2122, the anchor plates 2123 and the anchor bars 2124 are set according to actual construction needs.

[0069] Specifically, professional cutting equipment (such as a CNC laser cutting machine) can be used to accurately cut out the cross plate 2121, the fixed plate 2122 and several anchor plates 2123 according to the preset size, and deburr each plate surface. Through the welding process, the bottom of the fixed plate 2122 is vertically welded to the upper surface of the cross plate 2121, wherein the upper surface of the cross plate 2121 is the surface facing the bottom of the column body 100, and its lower surface is opposite to the upper surface (that is, its lower surface is adjacent to the bottom of the cantilever structure beam plate 400). The connection between the cross plate 2121 and the fixed plate 2122 forms a rigid frame, which ensures that the load is evenly transferred to the cantilever structure beam plate 400 through the anchor plate 2123 and the anchor bar 2124, preventing local stress concentration. During the prefabrication process in the factory, the fixed plate 2122 is reserved with welding holes or bolt holes (that is, the fourth through hole) according to the construction drawings.

[0070] The size and shape of the anchor plate 2123 are designed to meet the requirements for binding the steel bars in the cantilever structure beam slab 400. Through CNC cutting, several anchor plates 2123 that meet the design requirements are prefabricated. Prefabrication design helps to reduce on-site construction errors and ensure that each connection part meets high precision requirements. The number of anchor plates 2123 is set according to actual construction needs. Several anchor plates 2123 are arranged at intervals on the opposite sides of the fixed plate 2122 by welding or high-strength bolts, and ensure that they are perpendicular to the upper surface of the cross plate 2121. Multiple anchor plates 2123 increase the contact area between the lower embedded parts 212 and the concrete, which can effectively resist the pull-out force. The anchor bars 2124 are arranged vertically at intervals on the fixed plate 2122 by welding or bolting to ensure uniform distribution, which is convenient for subsequent connection with the steel bars of the concrete-cast cantilever structure beam slab 400. The design of the anchor plate 2123 and the anchor bars 2124 can effectively increase the bonding force with the concrete structure, thereby improving the overall stability of the lower embedded parts 212.

[0071] During the on-site construction and installation process, the prefabricated cross plate 2121 is first fixed to the bottom of the fixed plate 2122 by welding or high-strength bolts. Then, the anchor plate 2123 is vertically fixed to the upper surface of the cross plate 2121, and it is evenly arranged on both sides of the fixed plate 2122, and can be connected to the fixed plate 2122 by welding or high-strength bolts. Then, a number of anchor bars 2124 are fixed to the fixed plate 2122, ensuring that they are evenly spaced to facilitate the subsequent connection with the concrete structure steel bars. Finally, the entire lower embedded part 212 is installed as a whole to the bottom of the suspension column body 100, and its position is ensured to be accurate (that is, to ensure that the fourth through hole on the fixed plate 2122 can be aligned with the second through hole on the lower connecting plate 222), so that the subsequent fixed plate 2122 is fixedly connected to the lower end plate 232 through the lower connecting plate 222.

[0072] The fixed plate 2122 is connected to the lower end plate 232 through the lower connecting plate 222 to form a stable connection system. When the overall structure is subjected to horizontal forces (such as earthquake forces or wind loads), the fixed plate 2122 can transfer the horizontal forces to the lower connecting plate 222 and the lower end plate 232, and then transfer them to the upper structure through the suspender body 100. At the same time, the distribution of the anchor plate 2123 and the anchor bar 2124 in the concrete can effectively resist the shear force and improve the shear resistance of the structure. Therefore, the overall structural form of the lower embedded part 212 enhances the bending resistance of the cantilever structure beam slab 400, so that the structure can still remain stable under complex stress conditions, and improves the safety of the hoisting of the entire cantilever structure beam slab 400.

[0073] During the concrete pouring process, the cross plate 2121, anchor plate 2123 and anchor bar 2124 inside the cantilever structure beam 400 are combined with the concrete through the steel mesh. After the concrete pouring is completed, the anchor plate 2123 and anchor bar 2124 are fixed in the concrete structure. This setting method realizes the formation of a strong anchoring force between the poured concrete and the embedded parts 212 below.

[0074] In one embodiment, if Figure 1 to Figure 2 As shown, the connecting component 200 also includes a connecting piece 240 and an upper lifting ear 250; the upper lifting ear 250 is vertically connected to the bottom of the fixing plate 2122; a third through hole is arranged on the upper lifting ear 250; the third through hole is opposite to the first through hole to form a first connecting hole; the second through hole is opposite to the fourth through hole on the fixing plate 2122 to form a second connecting hole; the connecting piece 240 is respectively passed through the first connecting hole and the second connecting hole.

[0075] In this embodiment, the surfaces of the connector 240 and the upper lifting ear 250 are subjected to anti-corrosion treatment, such as hot-dip galvanizing or epoxy coating, to ensure durability during long-term use. The size specifications of the upper lifting ear 250 are determined based on the load-bearing requirements of the construction. A third through hole is processed on the upper lifting ear 250 using high-precision drilling equipment, and its aperture is determined based on the diameter of the connector 240, and is generally 1mm-2mm larger than the diameter of the connector 240. For example, if the connector 240 uses a pin with a diameter of 20mm, the diameter of the third through hole is processed to 21mm-22mm. The drilling position must be strictly in accordance with the design drawings to ensure that it can be accurately aligned with the first through hole at the corresponding position on the fixed plate 2122.

[0076] The connector 240 may be a high-strength bolt, and its diameter, length, and thread specifications are determined according to the structural force calculation and the size of the connection part. For example, if the connection part needs to withstand a large shear force, a pin with a diameter of 25 mm and a length that meets the connection requirements can be selected.

[0077] Specifically, the factory-prefabricated upper lifting lug 250 is vertically welded to the bottom of the fixed plate 2122, and a positioning fixture is used to ensure that the upper lifting lug 250 is vertical and accurately positioned with the fixed plate 2122. The prefabricated upper lifting lug 250 and the connector 240 only need to be simply assembled and installed at the construction site, reducing the complex processing and welding procedures on site. Construction personnel can quickly connect the various components according to the design requirements, thereby improving construction efficiency. After welding is completed, the weld is visually inspected and non-destructively tested, such as ultrasonic testing, to ensure that the weld quality meets the requirements.

[0078] When installing the lower connecting plate 222 and the fixed plate 2122, first align the second through hole on the lower connecting plate 222 with the fourth through hole on the fixed plate 2122, and use the positioning pin to temporarily fix it to ensure that the hole position is accurate. At the same time, align the third through hole on the upper ear 250 with the first through hole on the upper connecting plate 221. Then, pass the connecting member 240 (such as a pin or a bolt) through the first connecting hole (composed of the third through hole and the first through hole) and the second connecting hole (composed of the second through hole and the fourth through hole) in sequence. If a pin is used for connection, install a cotter pin or other locking device at both ends of the pin to prevent the pin from falling off; if a bolt is used for connection, install a nut on the bolt and tighten it according to the specified torque value to ensure a tight connection.

[0079] During the installation process, the verticality and hole position deviation of the connector 240 are checked with a measuring tool to ensure that the installation accuracy meets the design requirements. Due to the use of a pin or bolt connection method, if position deviation or other problems are found in the connection part during the construction process, adjustments can be made conveniently. During the later maintenance of the building structure, the connector 240 can also be easily disassembled and replaced, reducing maintenance costs and difficulties.

[0080] In addition, as a key force transmission component, the connector 240 can effectively withstand shear and tension due to its high-strength material and reasonable design. During the stress process of the structure, the pin or bolt can directly transmit the shear force to prevent relative sliding of the connection part; at the same time, the friction between the connector 240 and the hole wall and the pre-tightening force of the nut can resist the tension and ensure the reliability of the connection.

[0081] In one embodiment, if Figure 3 As shown, the top of the jack 500 abuts against the lower end plate 232 , and the bottom of the jack 500 abuts against the cantilever structure beam plate 400 .

[0082] In this embodiment, the load-bearing capacity of the required jack 500 is accurately calculated based on the weight of the suspension column body 100 and the embedded parts 212 below, the lower end plate 232 and the lower connecting plate 222, as well as the dynamic load and additional load that may be generated during the construction process. At the same time, the stroke of the required jack 500 is determined based on the maximum adjustment height requirement between the lower end plate 232 and the cantilever structure beam plate 400. After a large number of actual construction operations, it is found that a small jack 500 is preferably used in this embodiment. On the one hand, since the jack 500 is easy to operate, it can quickly complete the height adjustment and support work, which greatly shortens the construction time; on the other hand, compared with some large and complex support equipment, the jack 500 is relatively low in price and has strong versatility. The small jack can reduce the equipment investment cost while meeting the construction requirements.

[0083] In the actual construction process, for the cantilever structural beam 400 of the concrete structure, if its upper surface is uneven, cement mortar or thin steel plate can be used for leveling to ensure that the bottom of the jack 500 can reliably contact the cantilever structural beam 400. Two small jacks are set at symmetrical positions on the end surface of the cantilever structural beam 400 facing the bottom of the suspending column body 100. The levelness of the bottom of the small jack can be checked with a spirit level, and the deviation is controlled within a very small range, such as within ±2mm, to avoid failure or safety accidents caused by tilting force on the jack 500. Raise the lifting rod of the jack 500 to an appropriate height, and adjust the position of the jack 500 so that the lower surface of the lower end plate 232 is in close contact with the top of the lifting rod. By adjusting the jack 500, the integration of the lower end plate 232 of the suspending column and the lower connecting plate 220 of the suspending column can be leveled. After the jack 500 is installed, in order to prevent it from shifting during the construction process, wooden wedges or steel wedges can be used to fix it around the bottom of the jack 500. The wedges are inserted into the gap between the bottom of the jack 500 and the beam plate, and gently tapped to make the jack 500 stable.

[0084] like Fig. 9 As shown, an embodiment of the present invention further provides a construction method of a steel structure hanging column, which is applied to the steel structure hanging column in any of the above embodiments, and the method includes:

[0085] S1. Calculate the deflection of the cantilever structure beam under its own weight through the calculation software, and pre-arch it during construction according to the deflection value.

[0086] In this embodiment, when using the rational calculation software, the detailed parameters of the cantilever structure beam slab 400, such as the size of the cantilever structure beam slab 400, the concrete strength grade, the steel type (if there is a steel beam), etc., must be accurately entered into the software. Based on the principles of structural mechanics, the software simulates and calculates the deflection values ​​of the cantilever structure beam slab 400 at different positions under the action of deadweight. During construction, according to the calculated maximum deflection value, the cantilever structure beam slab 400 formwork is pre-arched during the stage of supporting the formwork. The arching method can be achieved by setting an adjustable top support in the formwork support system, and by adjusting the top support height, the formwork forms an upward arc according to the designed arching value. For example, if it is calculated that the maximum deflection of a cantilever beam in the mid-span under deadweight is 20mm, the mid-span formwork can be arched by 25mm during construction (considering a certain construction margin).

[0087] Pre-arching can effectively offset the deflection of the cantilever structure beam slab 400 under its own weight and subsequent use load, ensuring the smooth appearance and normal function of the structure during use. It avoids the impact of excessive deflection of the beam slab on the use of the building space, such as causing deformation of the ceiling and difficulty in equipment installation, and improves the overall quality of the building structure.

[0088] S2. Use the building information model to further design the column body, embedded parts, structural steel bars and prestressed corrugated pipes.

[0089] In this embodiment, Building Information Modeling (BIM) is a digital technology that can integrate information from various stages such as design, construction, and operation and maintenance into a three-dimensional model throughout the life cycle of a construction project, providing a collaborative work platform for all parties involved in the project. Using professional building information modeling software, the three-dimensional model of the column body 100 is accurately constructed, including information such as its cross-sectional dimensions, length, and material. For the embedded part 210, its shape, size, anchor bar 2124 layout, and connection method with the concrete structure are modeled in detail. The model, spacing, and layout of the structural steel bars are clearly presented in the model, and the position, length, and bending angle of the prestressed corrugated pipe are also accurately simulated. In the process of deepening the design, the spatial position relationship between the column body 100, the embedded part 210, the structural steel bars, and the prestressed corrugated pipe is checked through the collision check function of the BIM software to find and resolve potential collision conflicts. For example, if it is found that a certain structural steel bar conflicts with the anchor bar 2124 of the embedded part 210, the steel bar position can be adjusted in the model, and the impact of the adjustment on the overall structure can be viewed in real time.

[0090] The in-depth design improves the accuracy and coordination of the design of each component. Through the visual display of the BIM model, construction personnel can intuitively understand the spatial position of each component, discover design problems in advance, avoid errors and rework during construction, save construction time and costs, and improve construction efficiency. At the same time, it provides an accurate digital basis for quality control and safety management in the subsequent construction process.

[0091] S3, transporting the first integrated body consisting of the sling body, the upper end plate and the upper connecting plate, as well as other components constituting the steel structure sling.

[0092] In this embodiment, a suitable transport vehicle and lifting equipment are selected according to the size and weight of the first integrated body and other components. For relatively long components such as the davit body 100, a flatbed trailer can be used for transportation, and a dedicated fixing frame can be set on the transport vehicle, or tools such as wire ropes and hand winches can be used to firmly fix it to prevent displacement and collision during transportation. For example, for a davit body 100 with a length of 8m, a fixing frame is set every 2m on the flatbed trailer, and a wire rope with a diameter of 12mm is used to tie the davit body 100 to the fixing frame, and the wire rope is tightened by a hand winch.

[0093] The column body 100, the upper end plate 231 and the upper connecting plate 221 are transported as a first integrated body, which reduces the workload of on-site assembly and improves construction efficiency. Reasonable transportation planning and component fixing measures ensure the integrity of the components during transportation, reduce the risk of component damage, ensure the quality of construction materials, and thus guarantee the overall construction quality.

[0094] S4. Fix the cantilever structure beam slab and the embedded parts below, as well as the upper concrete structure slab and the embedded parts above in sequence.

[0095] In this embodiment, after the cantilever structure beam slab 400 template is set up, the template is accurately laid out according to the design drawings to determine the position of the lower embedded part 212. The lower embedded part 212 is fixed to the template by the positioning steel bar, and is reliably connected to the template and the lower embedded part 212 by the positioning steel bar, such as by spot welding or binding. Before pouring concrete, the position of the lower embedded part 212 is checked again to reduce the error between the position and the preset installation position. For the upper embedded part 211 of the upper concrete structure slab 300, during the template support and steel bar binding stage, the line is also accurately laid out and positioned, and the embedded part 210 is fixed in a suitable position by positioning measures. During the concrete pouring process, the vibrator avoids directly touching the embedded part 210 to prevent it from shifting. For example, when the steel bars of the upper concrete structure slab 300 are tied, the upper embedded part 211 is firmly tied to the steel bars at the bottom of the slab by the positioning steel bar, and a positioning steel bar is set every 200 mm.

[0096] The accurate fixing of the embedded part 210 ensures the accuracy of the subsequent installation of the suspension column, so that the suspension column body 100 can be reliably connected with the upper and lower structures, ensuring a smooth force transmission path of the structure and improving the stability and safety of the structure. The standardized fixing process and construction operation reduce quality problems such as displacement of the embedded part 210 and improve the construction quality.

[0097] S5. Hoist the first integrated body and correct the verticality of the column body, connect and fix the upper connecting plate in the first integrated body to the upper embedded parts through the upper lifting ears, and check the verticality of the column body.

[0098] In this embodiment, a suitable crane is selected to hoist the first integrated body, and the model and arm length of the crane are selected according to the weight and installation height of the first integrated body. Before hoisting, the hoist is inspected to ensure its safety. In addition, two temporary lifting ears can be welded on the lower surface of the upper embedded part 211, and the hanging column body 100 can be erected by using a fall chain. The hanging column body 100 is calibrated by a total station and a laser line-laying instrument to make it vertical, and ensure that the central axis of the hanging column body 100 coincides with the center of the fourth through hole on the lower embedded part 212 embedded in advance below. During the lifting process of the first integrated body, two theodolites are used to observe the verticality of the hanging column body 100 in mutually perpendicular directions. When the first integrated body is close to the installation position, the crane position and the arm angle are slowly adjusted to gradually bring the hanging column body 100 close to the upper embedded part 211. By adjusting the relative position of the upper lifting ear 250 and the upper connecting plate 221, align the third through hole on the upper lifting ear 250 with the first through hole on the upper connecting plate 221, insert the connecting member 240 (such as a high-strength latch bolt), and install the locking device (such as a nut adapted to the high-strength latch bolt). After the connection is completed, the verticality of the column body 100 is checked again using the theodolite. If there is a deviation, the verticality of the column body 100 is adjusted by fine-tuning the crane or using a small jack 500 until the verticality meets the design requirements. Generally, the verticality deviation is controlled within one thousandth.

[0099] Accurately calibrating and checking the verticality of the column body 100 ensures the correct stress state of the column body 100 in the structure, avoids eccentric stress caused by verticality deviation, and improves the bearing capacity and stability of the structure. Standardized connection operation enables the upper connection plate 221 to be reliably connected to the upper embedded part 211, enhances the firmness of the structural connection, and ensures the construction quality and structural safety.

[0100] S6. A second integrated body is formed by the lower end plate and the lower connecting plate, and one end of the second integrated body is connected to the lower embedded part through a connecting piece.

[0101] In this embodiment, the lower end plate 232 and the lower connecting plate 222 are assembled in the factory according to the design requirements to form a second integrated body, ensuring the assembly quality, such as the quality of the welds at the welding parts meet the standards. After being transported to the construction site, the second integrated body is hoisted to the installation position using a lifting device according to the position of the lower embedded part 212. The second through hole on the lower connecting plate 222 on the second integrated body is aligned with the corresponding hole position on the lower embedded part 212, and the connecting part 240 (such as a high-strength pin bolt) is inserted. The nut is tightened preliminarily to temporarily fix the second integrated body on the lower embedded part 212. During the installation process, a level and a plumb line are used to check the horizontality and verticality of the second integrated body to ensure the accuracy of the installation position.

[0102] The second integrated body is assembled in advance, which reduces the construction time on site and improves the construction efficiency. The accurate connection operation ensures the reliable connection between the second integrated body and the embedded part 212 below, provides a good foundation for the subsequent connection between the sling body 100 and the second integrated body, and helps to improve the installation quality of the entire steel structure sling.

[0103] S7. Level the second integrated body by using a jack, and fix the other end of the second integrated body to the suspension column body.

[0104] In this embodiment, a jack 500 is placed on the upper surface of the cantilever structural beam 400, and the position of the jack 500 is reasonably determined according to the size and stress conditions of the second assembly. Operate the jack 500, slowly lift it, and observe the horizontality of the second assembly through a level to make the second assembly reach a horizontal state. During the leveling process, pay attention to the lifting speed of the jack 500 to avoid shaking the second assembly due to excessive lifting speed. When the second assembly is leveled, align it with the bottom of the column body 100, and fix the second assembly to the column body 100 by welding or bolting. If welding is used, the quality of the weld must be guaranteed, and the operation should be carried out in accordance with the welding process requirements; if bolting is used, the nuts should be tightened according to the specified torque value. After the overall structure is installed, remove the support frame template under the cantilever structural beam 400.

[0105] The second integrated body is leveled by the jack 500, which ensures the flatness of the connection between the bottom of the column body 100 and the second integrated body, so that the connection part is evenly stressed and the connection strength is improved. The standardized fixing operation ensures the reliability of the connection between the column body 100 and the second integrated body, enhances the stability of the entire steel structure column, and ensures the construction quality and structural safety.

[0106] An embodiment of the present invention provides a steel structure suspension column and a construction method thereof, which are applied to the lifting of cantilevered concrete slabs, and include a suspension column body 100, a connecting assembly 200, an upper concrete structure slab 300, a cantilevered structural beam slab 400 and a jack 500; the top of the suspension column body 100 is connected to the upper concrete structure slab 300 through the connecting assembly 200; the bottom of the suspension column body 100 is connected to the cantilevered structural beam slab 400 through the connecting assembly 200; the two ends of the jack 500 are respectively vertically connected to the connecting assembly 200 and the cantilevered structural beam slab 400; the suspension column body 100, the upper concrete structure slab 300 and the cantilevered structural beam slab 400 are vertically coaxially arranged. In this embodiment, the cantilever structural beam 400 is connected to the upper concrete structure slab 300 through the column body 100. While ensuring the vertical coaxiality of the three, the verticality of the column body 100 is checked by the jack 500. It is suitable for hoisting various types of cantilever concrete slabs, improving the construction quality and reliability.

[0107] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A steel structure hanging column, used for hanging a cantilevered concrete slab, characterized in that: It includes a hanging column body, a connecting assembly, an upper concrete structure plate, a cantilevered structure beam plate and a jack; the top of the hanging column body is connected to the upper concrete structure plate through the connecting assembly; the bottom of the hanging column body is connected to the cantilevered structure beam plate through the connecting assembly; the two ends of the jack are respectively vertically connected to the connecting assembly and the cantilevered structure beam plate; the hanging column body, the upper concrete structure plate and the cantilevered structure beam plate are vertically coaxially arranged.

2. The steel structure suspender according to claim 1, characterized in that: The connection assembly includes embedded parts, connecting plates and end plates; the embedded parts are connected to the end plates through the connecting plates; the connecting plates are vertically connected to the end plates; the end plates are respectively connected to the top and bottom of the suspension column body; the embedded parts are respectively connected to the upper concrete structure plate and the cantilever structure beam plate.

3. The steel structure suspender according to claim 2, characterized in that: The end plate includes an upper end plate and a lower end plate; the upper end plate is connected to the upper concrete structure plate and the top of the column body at two opposite sides; the lower end plate is connected to the cantilever structure beam plate and the bottom of the column body at two opposite sides.

4. The steel structure suspender according to claim 3, characterized in that: The connecting plate includes an upper connecting plate and a lower connecting plate; one side of the upper connecting plate is vertically connected to the end surface of the upper end plate facing the upper concrete structure plate, and the other side is connected to the embedded part; one side of the lower connecting plate is vertically connected to the end surface of the lower end plate facing the cantilever structure beam plate, and the other side is connected to the embedded part; a first through hole is provided on the upper connecting plate; and a second through hole is provided on the lower connecting plate.

5. The steel structure suspender according to claim 4, characterized in that: The embedded parts include upper embedded parts and lower embedded parts; the upper embedded parts are connected to the lower embedded parts through the suspension column body; the upper embedded parts are connected to the interior of the upper concrete structural plate; and the lower embedded parts are connected to the cantilever structural beam plate.

6. The steel structure suspender according to claim 5, characterized in that: The upper embedded parts include a top plate, a bottom plate and a plurality of vertical plates; the top plate is vertically connected to the tops of the plurality of vertical plates; the bottom plate is vertically connected to the bottoms of the plurality of vertical plates; the plurality of vertical plates are spaced between the top plate and the bottom plate; the top plate is adjacent to the upper surface of the upper concrete structure plate; The bottom plate is adjacent to the lower surface of the upper concrete structural plate.

7. The steel structure suspender according to claim 5, characterized in that: The lower embedded parts include a transverse plate, a fixed plate, a plurality of anchor plates and a plurality of anchor bars; the bottom of the fixed plate is vertically connected to the upper surface of the transverse plate; the fixed plate is connected to the lower end plate through the lower connecting plate; the lower surface of the transverse plate is adjacent to the bottom of the cantilevered structural beam plate; a plurality of the anchor plates are perpendicular to the upper surface of the transverse plate; a plurality of the anchor plates are spaced apart on opposite sides of the fixed plate; a plurality of the anchor bars are spaced apart on the fixed plate; the transverse plate, a plurality of the anchor plates and a plurality of the anchor bars are all arranged inside the cantilevered structural beam plate.

8. The steel structure suspender according to claim 7, characterized in that: The connecting assembly also includes a connecting piece and an upper lifting ear; the upper lifting ear is vertically connected to the bottom of the fixing plate; a third through hole is provided on the upper lifting ear; the third through hole is opposite to the first through hole to form a first connecting hole; the second through hole is opposite to the fourth through hole on the fixing plate to form a second connecting hole; the connecting piece is respectively passed through the first connecting hole and the second connecting hole.

9. The steel structure suspender according to claim 3, characterized in that: The top of the jack abuts against the lower end plate, and the bottom of the jack abuts against the cantilever structure beam plate.

10. A construction method for a steel structure suspension column, characterized in that: Applied to the steel structure suspender according to any one of claims 1 to 9, the method comprises: The deflection of the cantilever structure beam under its own weight is calculated by using the calculation software, and the beam is pre-arched during construction according to the deflection value; The suspender body, embedded parts, structural steel bars and prestressed corrugated pipes are designed in depth through the building information model; Transporting the first integrated body consisting of the suspender body, the upper end plate and the upper connecting plate, as well as other components constituting the steel structure suspender; Fix the cantilever structure beam slab and the embedded parts below, as well as the upper concrete structure slab and the embedded parts above in sequence; Lifting the first integrated body and correcting the verticality of the sling body, connecting and fixing the upper connecting plate in the first integrated body to the upper embedded part through the upper lifting lug, and checking the verticality of the sling body; A second integrated body is formed by a lower end plate and a lower connecting plate, and one end of the second integrated body is connected to a lower embedded part through a connecting piece; The second integrated body is leveled by a jack, and the other end of the second integrated body is fixed to the suspension column body.

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