Steel structure suspension column and construction method thereof

Abstract

The embodiment of the application provides a steel structure hoisting column and a construction method thereof, which are applied to hoisting of a cantilever concrete slab, and comprise a hoisting column body, a connecting assembly, an upper concrete structure slab, a cantilever structure beam slab and a jack; the top of the hoisting column body is connected with the upper concrete structure slab through the connecting assembly; the bottom of the hoisting column body is connected with the cantilever structure beam slab through the connecting assembly; the two ends of the jack are vertically connected with the connecting assembly and the cantilever structure beam slab respectively; the hoisting column body, the upper concrete structure slab and the cantilever structure beam slab are vertically coaxially arranged. In the embodiment, the cantilever structure beam slab is connected with the upper concrete structure slab through the hoisting column body, the verticality of the hoisting column body is rechecked through the jack while the vertical coaxiality of the three is ensured, the hoisting column body is suitable for hoisting various cantilever concrete slabs, and the construction quality and reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and particularly relates to a steel structure hanging column and a construction method thereof. BACKGROUND

[0002] In recent years, with the rapid development of the construction industry in China, various buildings have sprung up like mushrooms. In order to pursue the integration of beauty and practicality, many building designs have unique shapes, and cantilevered hanging plates of different lengths are one of them. As a special building structure form, cantilevered hanging plates do not have structural columns below to meet the functional requirements of large space structures, and therefore rely on the upper hanging column to pull together to ensure the safety of the structure under stress, and have been widely used in modern buildings.

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

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

[0005] In a first aspect, the embodiments of the present application provide a steel structure hanging column applied to the hoisting of a cantilevered concrete plate, which comprises 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 with the upper concrete structure plate through the connecting assembly; the bottom of the hanging column body is connected with the cantilevered structure beam plate through the connecting assembly; the two ends of the jack are respectively connected vertically 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 arranged vertically coaxially.

[0006] In some embodiments, the connecting assembly comprises a buried part, a connecting plate, and an end plate; the buried part is connected with the end plate through the connecting plate; the connecting plate is connected vertically to the end plate; the end plate is connected respectively with the top and the bottom of the hanging column body; the buried part is connected respectively with the upper concrete structure plate and the cantilevered structure beam plate.

[0007] In some embodiments, the end plate comprises an upper end plate and a lower end plate; the opposite sides of the upper end plate are connected respectively to the upper concrete structure plate and the top of the hanging column body; the opposite sides of the lower end plate are connected respectively to the cantilevered structure beam plate and the bottom of the hanging column body.

[0008] In some embodiments, the connecting plate comprises an upper connecting plate and a lower connecting plate; one side of the upper connecting plate is connected perpendicularly 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 connected perpendicularly 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; the upper connecting plate is provided with a first through hole; and the lower connecting plate is provided with a second through hole.

[0009] In some embodiments, the embedded part comprises an upper embedded part and a lower embedded part; the upper embedded part is connected to the lower embedded part through the column body; the upper embedded part is connected to the inside of the upper concrete structure plate; and the lower embedded part is connected to the cantilever structure beam plate.

[0010] In some embodiments, the upper embedded part comprises a top plate, a bottom plate and a plurality of vertical plates; the top plate is connected perpendicularly to the top of the plurality of vertical plates; the bottom plate is connected perpendicularly to the bottom of the plurality of vertical plates; the plurality of vertical plates are arranged in a spaced manner between the top plate and the bottom plate; the top plate is adjacent to the upper surface of the upper concrete structure plate; and the bottom plate is adjacent to the lower surface of the upper concrete structure plate.

[0011] In some embodiments, the lower embedded part comprises a horizontal plate, a fixed plate, a plurality of anchor plates and a plurality of anchor bars; the bottom of the fixed plate is connected perpendicularly to the upper surface of the horizontal plate; the fixed plate is connected to the lower end plate through the lower connecting plate; the lower surface of the horizontal plate is adjacent to the bottom of the cantilever structure beam plate; the plurality of anchor plates are perpendicular to the upper surface of the horizontal plate; the plurality of anchor plates are arranged in a spaced manner on the opposite sides of the fixed plate; the plurality of anchor bars are arranged in a spaced manner on the fixed plate; and the horizontal plate, the plurality of anchor plates and the plurality of anchor bars are arranged in the inside of the cantilever structure beam plate.

[0012] In some embodiments, the connecting assembly further comprises a connecting piece and an upper lifting lug; the upper lifting lug is connected perpendicularly to the bottom of the fixed plate; the upper lifting lug is provided with a third through hole; the third through hole is opposite to the first through hole to form a first connecting hole; the second through hole is opposite to a fourth through hole on the fixed plate to form a second connecting hole; and the connecting piece is respectively arranged in 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, the embodiments of the present application further provide a construction method of a steel structure column, which is applied to the steel structure column in any one of the foregoing embodiments, and the method comprises the following steps:

[0015] The deflection of the cantilever structure beam plate under the dead weight is calculated by the ZJ calculation software, and the deflection value is used to pre-arch the cantilever structure beam plate during construction;

[0016] The hoisting column body, the embedded part, the structural steel bar and the prestressed corrugated pipe are deepened designed through the building information model;

[0017] The first integrated body composed of the hoisting column body, the upper end plate and the upper connecting plate is transported, and other components of the steel structure hoisting column are transported;

[0018] The cantilever structure beam plate and the lower embedded part, and the upper concrete structure plate and the upper embedded part are fixed in sequence;

[0019] The first integrated body is hoisted, the verticality of the hoisting column body is corrected, the upper connecting plate in the first integrated body is connected and fixed with the upper embedded part through the upper lifting lug, and the verticality of the hoisting column body is rechecked;

[0020] The second integrated body composed of the lower end plate and the lower connecting plate is connected with the lower embedded part through a connecting piece;

[0021] The second integrated body is leveled through the jack, and the other end of the second integrated body is fixed with the hoisting column body.

[0022] The embodiment of the present application provides a steel structure hoisting column and a construction method thereof, which are applied to hoisting of a cantilever concrete plate, and comprise a hoisting column body, a connecting assembly, an upper concrete structure plate, a cantilever structure beam plate and a jack; the top of the hoisting column body is connected with the upper concrete structure plate through the connecting assembly; the bottom of the hoisting column body is connected with the cantilever structure beam plate through the connecting assembly; the two ends of the jack are vertically connected to the connecting assembly and the cantilever structure beam plate respectively; and the hoisting column body, the upper concrete structure plate and the cantilever structure beam plate are vertically coaxially arranged. In the embodiment, the cantilever structure beam plate is connected with the upper concrete structure plate through the hoisting column body, the verticality of the hoisting column body is rechecked through the jack while ensuring that the three are vertically coaxial, the hoisting column body is suitable for hoisting various cantilever concrete plates, and the construction quality and reliability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 The front view structural schematic diagram of the steel structure hoisting column provided by the embodiment of the present application;

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

[0026] Figure 3 A schematic diagram of the 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 lug in the steel structure suspender 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 lug of the steel structure suspension column provided by 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 suspender provided by 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 suspender provided by an embodiment of the present invention;

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

[0033] The accompanying figures are as follows:

[0034] 100. Hanging column body; 200. Connecting 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 structure plate; 400. Cantilevered structural beam plate; 500. Jack. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

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

[0037] It should also be understood that the terms used in the specification and the appended claims are intended to describe particular embodiments and do not intend to limit the present application. As used in the specification and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0038] It should further be understood that the term "and / or" used in the specification and the appended claims means one or more of the associated listed items as well as all possible combinations of the items and includes the combinations.

[0039] Please refer to Figures 1 to 9 , Figure 1 A front view structural schematic diagram of a steel structure lifting column provided by an embodiment of the present application; Figure 2 A side view structural schematic diagram of a steel structure lifting column provided by an embodiment of the present application; Figure 3 A partial structural schematic diagram of a steel structure lifting column provided by an embodiment of the present application; Figure 4 A structural schematic diagram of a lower connecting plate, a lower end plate and a lifting column body in a steel structure lifting column provided by an embodiment of the present application; Figure 5 A front view structural schematic diagram of an upper embedded part and an upper lifting lug in a steel structure lifting column provided by an embodiment of the present application; Figure 6 A side view structural schematic diagram of an upper embedded part and an upper lifting lug in a steel structure lifting column provided by an embodiment of the present application; Figure 7 A side view structural schematic diagram of a lower embedded part in a steel structure lifting column provided by an embodiment of the present application;

[0040] Figure 8 A front view structural schematic diagram of a lower embedded part in a steel structure lifting column provided by an embodiment of the present application; Figure 9 A flowchart of a construction method of a steel structure lifting column provided by an embodiment of the present application.

[0041] Please refer to Figures 1 to 3The steel structure hoisting column provided by the embodiment of the present application is applied to hoisting of a cantilever concrete slab, and comprises a hoisting column body 100, a connecting assembly 200, an upper concrete structure slab 300, a cantilever structure beam slab 400 and a jack 500; the top of the hoisting column body 100 is connected with the upper concrete structure slab 300 through the connecting assembly 200; the bottom of the hoisting column body 100 is connected with the cantilever structure beam slab 400 through the connecting assembly 200; the two ends of the jack 500 are respectively connected perpendicularly to the connecting assembly 200 and the cantilever structure beam slab 400; the hoisting column body 100, the upper concrete structure slab 300 and the cantilever structure beam slab 400 are arranged coaxially in the vertical direction.

[0042] In the embodiment, the hoisting column body 100, the upper concrete structure slab 300 and the cantilever structure beam slab 400 are arranged coaxially in the vertical direction, which ensures that the force axes of the hoisting column body 100, the upper concrete structure slab 300 and the cantilever structure beam slab 400 are consistent, avoids asymmetric force or inclination in the structure, and improves the verticality and stability of the overall structure. Specifically, the hoisting column body 100 is arranged between the upper concrete structure slab 300 and the cantilever structure beam slab 400, wherein the top of the hoisting column body 100 is connected with the upper concrete structure slab 300 through the connecting assembly 200, and the bottom of the hoisting column body 100 is connected with the cantilever structure beam slab 400 through the connecting assembly 200. That is, in the vertical direction, the upper concrete structure slab 300 is located directly above the top of the hoisting column body 100, and the cantilever structure beam slab 400 is located directly below the bottom of the hoisting column body 100. On the one hand, the upper concrete structure slab 300 connected to the top of the hoisting column body 100 ensures the stability of the hoisting column body 100 when it is under stress, can effectively disperse external force, and avoids deformation or inclination caused by uneven stress; on the other hand, the bottom of the hoisting column body 100 is connected and fixed with the cantilever structure beam slab 400 through the connecting assembly 200, and the stability of the entire cantilever structure beam slab 400 can be effectively ensured through force transmission in the vertical direction.

[0043] In addition, the jack 500 can be a small jack, and the number thereof is set according to actual needs. The top of the jack 500 abuts against the connecting assembly 200, and the bottom of the jack 500 abuts against the end face of the cantilever structure beam slab 400 facing the upper concrete structure slab 300. Through flexible adjustment of the jack 500, the perpendicularity of the hoisting column body 100 in the vertical direction can be checked, so that the hoisting column body 100 reaches the required perpendicularity for construction and maintains vertical stress, effectively avoiding the problem of poor construction quality of the cantilever structure beam slab 400 caused by insufficient perpendicularity of the hoisting column body 100.

[0044] In an embodiment, as shown in FIG. 1, the connecting assembly 200 comprises a connecting plate 210 and a connecting rod 220. Figures 1 to 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 cross-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 face 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 to 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, making the force of the entire structural system more reasonable and improving the bearing capacity of the structure. The installation of the end plate 230 ensures consistency with the central axis of the suspender to ensure 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, thereby forming a vertical force transmission channel. The setting of the connecting plate 220 and the end plate 230 further enhances the reliability of the connection, while dispersing the force transmission path and avoiding the concentration of force 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. During the construction of the concrete structure, the upper concrete structure plate 300 and the cantilever structure beam plate 400 are firmly connected to the embedded part 210 through reserved holes or welding interfaces, thereby forming 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 the 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 the size is not limited herein. 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 hanging column body 100, and the other side is connected with the embedded part 210 in the upper concrete structure slab 300 through the connecting plate 220; one side of the lower end plate 232 is fixed to the bottom of the hanging column body 100, and the other side is connected with the embedded part 210 in the cantilever structure beam slab 400 through the connecting plate 220.

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

[0050] Specifically, in the factory prefabrication stage, the upper end plate 231 and the lower end plate 232 can be modeled in detail by using computer aided design (CAD) software and building information modeling (BIM) software, respectively, to determine the size and mounting hole position of each connection part. Then, the upper end plate 231 and the lower end plate 232 with precision up to standard are manufactured by using numerical control cutting, welding and drilling processes in a professional workshop. 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, the prefabricated upper end plate 231, the lower end plate 232 and the connecting plate 220 are connected with other components according to the design, which reduces complex on-site processing and improves construction efficiency.

[0051] During the construction site assembly stage, the prefabricated upper end plate 231 is installed on the top of the hanging column body 100, which can be fixed by using high-strength bolts or on-site welding, and the mounting surface for abutting with the upper concrete structure slab 300 is pre-reserved. After being fixed on the top of the hanging column body 100, the positioning instrument can be used to ensure that the central axis of the upper end plate 231 coincides with that of the hanging column body 100. Similarly, the lower end plate 232 is installed on the bottom of the hanging column body 100, which can be fixed by using high-strength bolts or on-site welding to connect with the bottom of the hanging column body 100, and the mounting surface for connecting with the cantilever structure beam slab 400 is pre-reserved, and the overall perpendicularity of the lower end plate 232 and the hanging column body 100 is checked to ensure the installation precision.

[0052] No matter the connection mode of high-strength bolts or the connection mode of field welding, the connection tightness between the upper end plate 231 and the column body 100 and between the lower end plate 232 and the column body 100 can be ensured, stress can be effectively transmitted, and the overall stability and reliability of the structure can be improved. Moreover, the guarantee of installation precision and the standard connection mode make it easier to check and evaluate the connection parts in subsequent structure inspection and maintenance.

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

[0054] In the embodiment, the upper connecting plate 221 and the lower connecting plate 222 are usually made of steel material matching the material of the end plate 230 and the embedded part 210, such as Q345B low-alloy high-strength structural steel, to ensure good mechanical properties and welding performance. The sizes of the upper connecting plate 221 and the lower connecting plate 222 are the same and can be set according to actual construction needs. Taking the upper connecting plate 221 as an example, the number of the upper connecting plate 221 is two, and the two upper connecting plates 221 are oppositely spaced and vertically connected 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, ensuring that the load of the upper concrete structure plate 300 can be directly transmitted to the column body 100 in the vertical direction, realizing the continuity of the vertical force transmission path. The upper connecting plate 221 is provided with a first through hole, and the position of the first through hole is determined according to the force transmission and installation alignment requirements. The first through hole is used for penetrating high-strength bolts or butt pins to realize the accurate connection of the upper embedded part 211 and the upper connecting plate 221.

[0055] Similarly, the number of the lower connecting plate 222 is two, and the two lower connecting plates 222 are oppositely spaced and vertically connected to the end surface of the lower end plate 232 facing the cantilever structure beam plate 400. The lower connecting plate 222 is vertically connected to the lower end plate 232, ensuring that the load of the cantilever structure beam plate 400 can be directly transmitted to the column in the vertical direction, reducing the bending moment and improving the overall stability. The lower connecting plate 222 is provided with a second through hole, and the position of the second through hole is determined according to the force transmission and installation alignment requirements. The second through hole has the same effect as the first through hole to realize the accurate connection of 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 respectively fixed at the top and the bottom of the hanger column body 100, so as to ensure that the upper end plate 231 and the lower end plate 232 are coaxial with the hanger column body 100, and the mounting surface reserved on the upper end plate 231 faces the upper concrete structure plate 300, and the mounting surface reserved on 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, so as to ensure that the mounting surface of the upper connecting plate 221 completely matches the contact surface of the upper end plate 231; meanwhile, the first through hole on the upper connecting plate 221 is connected with the upper embedded part 211, and the connection can be achieved by high-strength bolts. Similarly, the lower connecting plate 222 is fixed to the mounting surface of the lower end plate 232. One side of the lower connecting plate 222 is vertically fixed to the lower end plate 232, and the second through hole on the lower connecting plate 222 is connected with the lower embedded part 212, and the connection can be achieved by high-strength bolts passing through the fourth through hole on the lower embedded part 212. During the installation of the upper connecting plate 221 and the upper end plate 231 and the lower connecting plate 222 and the lower end plate 232, the total station or the laser level can be used to detect the perpendicularity and coaxiality between the upper connecting plate 221, the lower connecting plate 222, the upper end plate 231, the lower end plate 232, the hanger column body 100 and the embedded part 210, so as to ensure that all components are arranged along the same stress axis.

[0057] For the first through hole, a temporary connecting pin or positioning bolt can be installed first, and then fastened after the first through hole is aligned with the connection position (i.e. the third through hole on the upper lug 250) of the embedded part 210 (here specifically the upper embedded part 211), so as to ensure that there is no deviation between the upper connecting plate 221 and the upper embedded part 211, and a stable force transmission channel is formed. Similarly, for the second through hole, the same operation as the first through hole can be performed first, and then fastened after the second through hole is aligned with the connection position (i.e. the fourth through hole on the lower embedded part 212) of the embedded part 210 (here specifically the lower embedded part 212), so as to form a fastened force transmission path.

[0058] In an embodiment, as shown in Figures 1 to 3 the embedded part 210 includes an upper embedded part 211 and a lower embedded part 212; the upper embedded part 211 is connected with the lower embedded part 212 through the hanger column body 100; the upper embedded part 211 is connected with the inside of the upper concrete structure plate 300; and the lower embedded part 212 is connected with the cantilever structure beam plate 400.

[0059] In the embodiment, the upper embedded part 211 and the lower embedded part 212 can be made of steel material that can meet the requirements of long-term stress and corrosion resistance, such as Q235B or Q345B steel material, which has good strength and weldability. The size is set according to the actual construction needs. Before pouring the upper concrete structure plate 300, the position of the upper embedded part 211 is determined according to the design drawing to ensure that the upper lifting lug 250 at the bottom of the upper embedded part 211 can be matched with the reserved mounting position between the two upper connecting plates 221. The upper embedded part 211 is fixed on the formwork by the positioning steel bars inside the upper concrete structure plate 300 to prevent displacement of the upper embedded part 211 during concrete pouring. For example, spot welding is used at the intersection of the positioning steel bars and the formwork, and the upper embedded part 211 is connected by binding or welding. During concrete pouring, the vibrating rod avoids directly touching the upper embedded part 211 to prevent its position from changing, thereby realizing the internal integral connection of the upper concrete structure plate 300 and the upper embedded part 211.

[0060] After the formwork of the cantilever structure beam plate 400 is completed, the lower embedded part 212 is installed on the formwork according to the design position before the steel bar binding, and is also fixed by the positioning steel bars. During the steel bar binding process, attention should be paid 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. During concrete pouring, the lower embedded part 212 part is strengthened and vibrated 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 part 211 and the upper concrete structure plate 300, and between the lower embedded part 212 and the cantilever structure beam plate 400 are completed, the upper embedded part 211 at the top of the column body 100 and the lower embedded part 212 at the bottom thereof are detected by a total station or a laser leveler to determine whether they are arranged along the same central axis, so as to ensure that the stress of the upper concrete structure plate 300 and the cantilever structure beam plate 400 can be transmitted along the vertical axis, thereby realizing stable lifting of the cantilever structure beam plate 400.

[0062] After the upper embedded part 211 and the lower embedded part 212 are integrated and connected by the column body 100, a continuous stress transmission path from the upper concrete structure plate 300 to the cantilever structure beam plate 400 is formed, which ensures that the load is uniformly transmitted along the design direction and reduces local stress concentration.

[0063] Specifically, as Figures 5 to 6As shown, the upper embedded part 211 comprises a top plate 2111, a bottom plate 2112 and a plurality of vertical plates 2113; the top plate 2111 is vertically connected to the top of the plurality of vertical plates 2113; the bottom plate 2112 is vertically connected to the bottom of the plurality of vertical plates 2113; the plurality of vertical plates 2113 are arranged in a spaced manner between the top plate 2111 and the bottom plate 2112; the top plate 2111 is adjacent to the upper surface of the upper concrete structural slab 300; and the bottom plate 2112 is adjacent to the lower surface of the upper concrete structural slab 300.

[0064] In the embodiment, the top plate 2111, the bottom plate 2112 and the plurality of vertical plates 2113 can be made of the same high-strength steel material, such as Q345B steel. The dimensions 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 numerical control cutting, punching, welding and other processes, and the connecting parts are polished and pretreated, so as to ensure that the connecting surface is flat and the dimensional tolerance is controlled within ±1mm. The upper embedded part 211 prefabricated in the factory can be strictly controlled in size and machining precision, and only positioning and docking are needed during on-site installation, which reduces the on-site construction error and improves the overall installation precision and construction efficiency.

[0065] Specifically, the lower surface of the top plate 2111 and the top of each vertical plate 2113 are fixed by vertical welding or high-strength bolt connection. The welding or bolt connection positions should be uniformly distributed to ensure uniform stress. Similarly, the upper surface of the bottom plate 2112 and the bottom of each vertical plate 2113 are vertically connected and fixed. When connected, it should be ensured that each vertical plate 2113 is perpendicular to the top plate 2111 and the bottom plate 2112 to form a firm frame structure. The plurality of vertical plates 2113 are evenly arranged according to the design requirements between the top plate 2111 and the bottom plate 2112, which not only ensures the rigidity of the whole component, but also facilitates the subsequent binding and docking of the internal steel bars or anchor pieces of the upper concrete structural slab 300.

[0066] During on-site installation, the upper embedded parts 211 are 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 is rigidly embedded with the steel mesh or binding parts in the concrete 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 through chemical anchors or high-strength bolts. In this way, the upper embedded parts 211 and the upper concrete structural plate 300 can form an integral force system. After the upper embedded parts 211, which are prefabricated by the bottom plate 2112, the top plate 2111 and several 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 that the bottom plate 2112 is in contact with the lower surface.

[0067] In one embodiment, if Figures 7 to 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 located on the opposite sides of the fixed plate 2122 and are spaced apart; a plurality of the anchor bars 2124 are spaced apart 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 cross plate 2121, fixed plate 2122, anchor plate 2123, and anchor bars 2124 to ensure sufficient load-bearing capacity and durability. The cross plate 2121, fixed plate 2122, anchor plate 2123, and anchor bars 2124 are treated with an anti-rust treatment (such as hot-dip galvanizing or epoxy coating) to ensure corrosion resistance and long-term reliability. The dimensions of the cross plate 2121, fixed plate 2122, anchor plates 2123, and anchor bars 2124 are determined based on actual construction requirements.

[0069] Specifically, a professional cutting equipment (such as a numerical control laser cutting machine) can be used to accurately cut the horizontal plate 2121, the fixed plate 2122 and a plurality of anchor plates 2123 according to the preset size, and deburring treatment is performed on the plate surface. The bottom of the fixed plate 2122 is vertically welded on the upper surface of the horizontal plate 2121 by a welding process, wherein the upper surface of the horizontal plate 2121 is the surface facing the bottom of the column body 100, and the lower surface is opposite to the upper surface (that is, the lower surface is adjacent to the bottom of the cantilever structure beam plate 400). The connection of the horizontal plate 2121 and the fixed plate 2122 forms a rigid frame, which ensures that the load is uniformly transmitted to the cantilever structure beam plate 400 through the anchor plate 2123 and the anchor bar 2124, preventing local stress concentration. The fixed plate 2122 is pre-fabricated in the factory according to the construction drawing to reserve the welding hole or bolt hole (that is, the fourth through hole).

[0070] The size and shape of the anchor plate 2123 are designed to meet the binding requirements of the reinforcement in the cantilever structure beam plate 400. A plurality of anchor plates 2123 that meet the design requirements are pre-fabricated by numerical control cutting. The pre-fabricated design helps to reduce the construction error on site and ensures that each connection part meets the high precision requirement. The number of anchor plates 2123 is set according to the actual construction needs. A plurality of anchor plates 2123 are arranged on the opposite sides of the fixed plate 2122 by welding or high-strength bolts, and are ensured to be perpendicular to the upper surface of the horizontal plate 2121. The plurality of anchor plates 2123 increase the contact area between the lower embedded part 212 and the concrete, which can effectively resist the pulling force. The anchor bars 2124 are arranged vertically and spaced on the fixed plate 2122 by welding or bolt fixing, which ensures uniform distribution and facilitates subsequent connection with the reinforcement of the cantilever structure beam plate 400. The design of the anchor plate 2123 and the anchor bar 2124 can effectively increase the bonding force with the concrete structure, thereby improving the overall stability of the lower embedded part 212.

[0071] During the on-site construction and installation process, the pre-fabricated horizontal plate 2121 is first fixed on the bottom of the fixed plate 2122 by welding or high-strength bolts. Then, the anchor plates 2123 are fixed vertically on the upper surface of the horizontal plate 2121, and are uniformly arranged on both sides of the fixed plate 2122, which can be connected with the fixed plate 2122 by welding or high-strength bolts. Then, a plurality of anchor bars 2124 are fixed on the fixed plate 2122, ensuring that they are uniformly spaced for subsequent connection with the reinforcement of the concrete structure. Finally, the entire lower embedded part 212 is installed on the bottom of the column body 100, and the position is ensured to be accurate (that is, the fourth through hole on the fixed plate 2122 is aligned with the second through hole on the lower connecting plate 222), so as to facilitate the subsequent fixed plate 2122 to be fixed and connected with 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 shear forces and improve the shear resistance of the structure. Therefore, the overall structural form of the lower embedded parts 212 enhances the bending resistance of the cantilever structure beam plate 400, so that the structure can still remain stable under complex stress conditions, thereby improving the safety of the entire cantilever structure beam plate 400 hoisting.

[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 Figures 1 to 2 As shown, the connecting assembly 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 provided 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 strictly follow the design drawings to ensure that it can be accurately aligned with the first through hole at the corresponding position on the fixing plate 2122.

[0076] The connector 240 can be a high-strength bolt, and its diameter, length, and thread specifications are determined based on 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 welded vertically to the bottom of the fixing plate 2122, and a positioning fixture is used to ensure that the upper lifting lug 250 is perpendicular to the fixing plate 2122 and accurately positioned. The prefabricated upper lifting lug 250 and connector 240 require simple assembly and installation at the construction site, reducing complex on-site machining and welding procedures. Construction workers can quickly connect the various components according to design requirements, improving construction efficiency. After welding is completed, the weld undergoes visual inspection and non-destructive testing, such as ultrasonic testing, to ensure that the weld quality meets 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 temporarily fix them with a positioning pin to ensure that the hole positions are accurate. At the same time, align the third through hole on the upper hanging 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 connection is used, install a cotter pin or other locking device at both ends of the pin to prevent the pin from falling off; if a bolt connection is used, install a nut on the bolt and tighten it according to the specified torque value to ensure a tight connection.

[0079] During installation, measuring tools are used to check the verticality and hole position deviation of connector 240 to ensure that the installation accuracy meets design requirements. Because of the use of pins or bolts, any positional deviation or other problems found in the connection during construction can be easily adjusted. Connector 240 can also be easily removed and replaced during subsequent maintenance of the building structure, reducing maintenance costs and difficulty.

[0080] Furthermore, connector 240, a key force-transmitting component, is constructed of high-strength materials and designed to effectively withstand both shear and tensile forces. During structural stress, the pin or bolt directly transmits shear forces, preventing relative slippage at the connection. Meanwhile, the friction between connector 240 and the hole wall, along with the preload of the nut, resists tensile forces, ensuring a secure 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 suspender 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 cantilevered structural beam plate 400. After a large number of actual construction operations, it was 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 supporting 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] During the actual construction process, for the cantilever structural beam slab 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 slab 400. Two small jacks are set at symmetrical positions on the end surface of the cantilever structural beam slab 400 facing the bottom of the suspender body 100. A spirit level can be used to check the horizontality of the bottom of the small jack, and the deviation is controlled within a very small range, such as within ±2mm, to avoid malfunction or safety accidents caused by tilting force on the jack 500. Raise the jacking 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 jacking rod. By adjusting the jack 500, the integrated body of the lower end plate 232 of the suspender and the lower connecting plate 220 of the suspender can be leveled. After the jack 500 is installed, in order to prevent it from shifting during construction, 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 Figure 9 As shown, an embodiment of the present invention further provides a construction method for a steel structure suspender column, which is applied to the steel structure suspender column in any of the aforementioned embodiments, and the method includes:

[0085] S1. Calculate the deflection of the cantilever structure beams and slabs under their own weight using the correct calculation software, and pre-arch them during construction based on the deflection value.

[0086] In this embodiment, when using the Jianzheng calculation software, the detailed parameters of the cantilever structural beam slab 400, such as the size of the cantilever structural beam slab 400, the concrete strength grade, the steel type (if there is a steel beam), and the like, are first accurately input into the software. According to the principle of structural mechanics, the deflection values of the cantilever structural beam slab 400 at different positions under the action of self weight are simulated and calculated by the software. During construction, according to the maximum deflection value obtained by calculation, pre-cambering is performed during the template supporting stage of the cantilever structural beam slab 400. The pre-cambering method can adopt to set an adjustable top support in the template supporting system, and by adjusting the height of the top support, the template is formed into an upward arc according to the design cambering value. For example, if it is calculated that the maximum deflection of a cantilever beam in the middle of the span under the action of self weight is 20 mm, the middle of the template can be cambered by 25 mm (considering a certain construction allowance) during construction.

[0087] The pre-cambering can effectively offset the deflection of the cantilever structural beam slab 400 under the action of self weight and subsequent use load, and ensure the appearance flatness and normal function of the structure in the use stage. It avoids the problems that the deflection of the beam slab is too large to affect the use of the building space, such as causing the deformation of the suspended ceiling, the difficulty of equipment installation, and the like, and improves the overall quality of the building structure.

[0088] S2, deepening design of the hanging column body, the embedded part, the structural steel bar and the prestressed corrugated pipe through the building information model.

[0089] In this embodiment, the building information model (Building Information Modeling, BIM) is a digital technology that can integrate information in various stages such as design, construction, operation and maintenance in the whole life cycle of a building project, and provide a collaborative work platform for all parties involved in the project. The three-dimensional model of the hanging column body 100 is accurately constructed by using professional building information model software, including information such as its cross-sectional size, length, material, etc. For the embedded part 210, the shape, size, arrangement of anchor bars 2124 and the connection mode with the concrete structure are modeled in detail. The type, spacing and arrangement of the structural steel bar are clearly presented in the model, and the position, length and bending angle of the prestressed corrugated pipe are also accurately simulated. During the deepening design process, the spatial positional relationship between the hanging column body 100, the embedded part 210, the structural steel bar and the prestressed corrugated pipe is checked by the collision checking function of the BIM software, and potential collision conflicts are found and solved. For example, if it is found that a structural steel bar is in conflict with the anchor bars 2124 of the embedded part 210, the position of the steel bar can be adjusted in the model, and the influence on the overall structure after adjustment can be viewed in real time.

[0090] The deepening design improves the accuracy and coordination of each component design. 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 in the construction process, save construction time and cost, and improve construction efficiency. At the same time, it provides accurate digital basis for quality control and safety management in the subsequent construction process.

[0091] S3, transport the first integrated body composed of the column body, the upper end plate and the upper connecting plate, and other components of the steel structure column.

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

[0093] The first integrated body composed of the column body 100, the upper end plate 231 and the upper connecting plate 221 is transported, which reduces the workload of on-site assembly and improves the 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 ensure the overall construction quality.

[0094] S4, sequentially fix the cantilever structure beam plate and the lower embedded part, and the upper concrete structure plate and the upper embedded part.

[0095] In this embodiment, after the formwork of the cantilever structure beam plate 400 is completed, the position of the lower embedded part 212 is accurately marked on the formwork according to the design drawings. The positioning steel bars fix the lower embedded part 212 on the formwork, and are reliably connected with the formwork and the lower embedded part 212 through the positioning steel bars, such as spot welding or binding. Before concrete pouring, the position of the lower embedded part 212 is checked again to reduce the error with the preset installation position. For the upper embedded part 211 of the upper concrete structure plate 300, the position is also accurately marked during the formwork setting and steel bar binding stage, and the embedded part 210 is fixed in the appropriate position through positioning measures. During the concrete pouring process, the vibrator avoids directly touching the embedded part 210 to prevent its displacement. For example, when the steel bars of the upper concrete structure plate 300 are bound, the upper embedded part 211 is firmly bound with the bottom steel bars through the positioning steel bars, and a positioning steel bar is arranged every 200mm.

[0096] Accurate fixing of the position of the embedded part 210 ensures the accuracy of the subsequent installation of the hoisting column, enables reliable connection of the hoisting column body 100 with the upper and lower structures, ensures smooth force transmission path of the structure, and improves the stability and safety of the structure. The standardized fixing process and construction operation reduces the quality problems such as displacement of the embedded part 210, and improves the construction quality.

[0097] S5, hoist the first integrated body and correct the verticality of the hoisting column body, connect and fix the upper connecting plate in the first integrated body with the upper embedded part through the upper lifting lug, and review the verticality of the hoisting column body.

[0098] In the present embodiment, a suitable crane is selected for hoisting 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 lifting appliance is inspected to ensure its safety. In addition, two temporary lifting lugs can be welded on the lower surface of the upper embedded part 211, the hoisting column body 100 is stood up using a chain hoist, and the verticality of the hoisting column body 100 is corrected by using a total station instrument and a laser line instrument, so that the hoisting column body 100 is vertical and the central axis of the hoisting column body 100 coincides with the center of the fourth through hole on the lower embedded part 212 which is pre-buried. During the hoisting of the first integrated body, two theodolites are used to observe the verticality of the hoisting column body 100 in mutually perpendicular directions. When the first integrated body approaches the installation position, the position of the crane and the angle of the lifting arm are slowly adjusted so that the hoisting column body 100 gradually approaches the upper embedded part 211. By adjusting the relative position of the upper lifting lug 250 and the upper connecting plate 221, the third through hole on the upper lifting lug 250 is aligned with the first through hole on the upper connecting plate 221, the connecting piece 240 (such as a high-strength pin bolt) is inserted, and the locking device (such as a nut matched with the high-strength pin bolt) is installed. After the connection is completed, the verticality of the hoisting column body 100 is reviewed again using the theodolites. If there is a deviation, the verticality of the hoisting column body 100 is adjusted by fine-tuning the crane or using a small jack 500, until the verticality meets the design requirements, and the verticality deviation is generally controlled within one thousandth.

[0099] The verticality of the hoisting column body 100 is accurately corrected and reviewed, which ensures the correct stress state of the hoisting column body 100 in the structure, avoids eccentric stress caused by deviation of the verticality, and improves the carrying capacity and stability of the structure. The standardized connection operation enables reliable connection of the upper connecting plate 221 with the upper embedded part 211, enhances the firmness of the structure connection, and guarantees the construction quality and structural safety.

[0100] S6, the second integrated body is composed of a lower end plate and a lower connecting plate, and one end of the second integrated body is connected with 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 according to the design requirements in the factory to form a second integrated body, ensuring the assembly quality, such as the weld quality of the welding position, meeting the standard. After transportation to the construction site, according to the position of the lower embedded part 212, the second integrated body is hoisted to the installation position using hoisting equipment. 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 piece 240 (such as a high-strength pin bolt) is inserted. First, the nut is preliminarily tightened, and the second integrated body is temporarily fixed on the lower embedded part 212. During installation, the level and plumb line are used to check the levelness and perpendicularity 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 on-site construction time and improves the construction efficiency. The accurate connection operation ensures the reliable connection of the second integrated body and the lower embedded part 212, providing a good foundation for the connection of the column body 100 and the second integrated body, which helps to improve the installation quality of the entire steel structure column.

[0103] S7, leveling the second integrated body by the jack, and fixing the other end of the second integrated body with the column body.

[0104] In this embodiment, the jack 500 is placed on the upper surface of the cantilever structure beam plate 400, and the position of the jack 500 is reasonably determined according to the size and stress condition of the second integrated body. The jack 500 is operated to slowly jack up, and the levelness of the second integrated body is observed by the level to make the second integrated body reach the horizontal state. During leveling, attention should be paid to the jacking speed of the jack 500 to avoid shaking of the second integrated body caused by too fast jacking. After the second integrated body is leveled, it is aligned with the bottom of the column body 100, and the second integrated body is fixed with the column body 100 by welding or bolt connection, etc. If welding is used, the welding quality should be ensured, and the operation should be performed according to the welding process requirements; if bolt connection is used, the nut should be tightened according to the specified torque value. After the overall structure installation is completed, the support frame template under the cantilever structure beam plate 400 is removed.

[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, makes the stress of the connection part uniform, and improves the connection strength. 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 guarantees the construction quality and structure safety.

[0106] The embodiment of the present application provides a steel structure hoisting column and a construction method thereof, which are applied to hoisting of a cantilever concrete slab, and comprise a hoisting column body 100, a connecting assembly 200, an upper concrete structure slab 300, a cantilever structure beam slab 400 and a jack 500; the top of the hoisting column body 100 is connected with the upper concrete structure slab 300 through the connecting assembly 200; the bottom of the hoisting column body 100 is connected with the cantilever structure beam slab 400 through the connecting assembly 200; the two ends of the jack 500 are vertically connected with the connecting assembly 200 and the cantilever structure beam slab 400 respectively; the hoisting column body 100, the upper concrete structure slab 300 and the cantilever structure beam slab 400 are vertically coaxially arranged. In the embodiment, the cantilever structure beam slab 400 is connected with the upper concrete structure slab 300 through the hoisting column body 100, the verticality of the hoisting column body 100 is rechecked through the jack 500 while ensuring that the three are vertically coaxial, the hoisting column body 100 is suitable for hoisting various kinds of cantilever concrete slabs, and the construction quality and reliability are improved.

[0107] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

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

2. The steel structure suspender according to claim 1, characterized in that: The end plate includes an upper end plate and a lower end plate; the opposite sides of the upper end plate are respectively connected to the upper concrete structure plate and the top of the suspension column body; the opposite sides of the lower end plate are respectively connected to the cantilever structure beam plate and the bottom of the suspension column body.

3. The steel structure suspender according to claim 2, 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; a second through hole is provided on the lower connecting plate.

4. The steel structure suspender according to claim 3, 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 suspender body; the upper embedded parts are connected to the interior of the upper concrete structure plate; the lower embedded parts are connected to the cantilever structure beam plate.

5. The steel structure suspender according to claim 4, 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 apart and arranged 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.

6. The steel structure suspender according to claim 4, characterized in that: The lower embedded parts include a transverse plate, a fixed plate, several anchor plates and several 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; several of the anchor plates are perpendicular to the upper surface of the transverse plate; several of the anchor plates are located at intervals on both sides of the opposite sides of the fixed plate; several of the anchor bars are arranged at intervals on the fixed plate; the transverse plate, several of the anchor plates and several of the anchor bars are all arranged inside the cantilevered structural beam plate.

7. The steel structure suspender according to claim 6, 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.

8. The steel structure suspender according to claim 2, 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.

9. A construction method for a steel structure suspender column, characterized in that: Applied to the steel structure suspender according to claim 7, the method comprises: The deflection of the cantilever structure beams and slabs under their own weight is calculated using the Lizheng calculation software, and the beams and slabs are pre-arched during construction based on the deflection value; The suspender body, embedded parts, structural steel bars and prestressed corrugated pipes were 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 that make up the steel structure suspender; Fix the cantilevered structural beam slab and embedded parts below, as well as the upper concrete structural slab and 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 of the first integrated body to the upper embedded parts through the upper lifting lugs, 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 the 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 sling body.

Images