Fabricated steel structure building construction method

Abstract

The application provides a kind of fabricated steel structure building construction method, belongs to steel structure building technical field, the fabricated steel structure building construction method its characterized in that, including following steps: the size of construction site is measured, according to the measured value drawing site size drawing;According to the site size drawing of drawing, the construction plane is established through modeling software, and steel structure model is established on the construction plane;The established steel structure model is spliced production and is marked in groups according to the action attribute and the installation sequence;The steel structure component of entity is assembled and installed, and the steel structure support beam is formed after installation is completed;Between a plurality of steel structure support beams, through I cross steel, a steel structure building frame is formed;The application can adjust the angle of the roof beam while ensuring the stability of the load bearing, and avoid the deviation caused by easy installation, speed up the construction progress and ensure the construction efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of steel structure buildings, and particularly relates to a fabricated steel structure building construction method. BACKGROUND

[0002] Steel structure is a structure composed of steel materials, which is one of main building structure types, and is mainly composed of members such as steel beams, steel columns and steel trusses supported by steel plates and the like, and adopts rust removal processes such as silicification, pure manganese phosphating, water washing and drying and galvanizing, and usually adopts welding, bolts or rivets to connect between members or parts, and is widely applied in fields such as large workshops, venues and super high-rise buildings due to light self weight and simple construction.

[0003] In the traditional steel structure building construction method, the connection mode of the top beam usually adopts welding or bolt connection, and the connection points of the beam column are relatively many, so that it is difficult to guarantee the firmness and stability of each connection point in the construction process, and the top beam is a fixed-angle horizontal steel, which cannot be adjusted by a small angle according to the need of different roof inclination angles, and in the steel structure frame installation process, the lifting point needs to be accurately calculated and controlled, otherwise the installation deviation is easily caused in the welding and fixing process, which causes repeated operation of the project and delays the construction progress. SUMMARY

[0004] Therefore, the application provides a fabricated steel structure building construction method, which can adjust the angle of the top beam while guaranteeing the load-bearing stability, avoid installation deviation, speed up the construction progress and guarantee the construction efficiency.

[0005] The application is implemented as follows:

[0006] The application provides a fabricated steel structure building construction method, which comprises the following steps.

[0007] S10: Measure the size of the construction site, and draw a site size drawing according to the measured value;

[0008] S20: Establish a construction plane by using modeling software according to the drawn site size drawing, and establish a steel structure model on the construction plane;

[0009] S30: Entity splice production of the established steel structure model, and group marking according to the action attribute and installation sequence;

[0010] S40: Assemble and install the entity steel structure members to form a steel structure support beam;

[0011] S50: Connect the steel structure support beams by using the I-shaped horizontal steel to form a steel structure building frame.

[0012] Based on the technical scheme, the assembly type steel structure building construction method can be further improved as follows:

[0013] The specific steps of measuring the size of the construction site and drawing a site size drawing according to the measured value include:

[0014] The distance and angle between multiple horizontal and vertical orientation markers are measured using a total station instrument inside the construction site to collect the flatness information of the construction site, and the size data collected helps the drafters draw the site size drawing.

[0015] Further, the specific steps of establishing a construction plane according to the drawn site size drawing and establishing a steel structure model on the construction plane include:

[0016] According to the drawn site size drawing, a three-dimensional modeling software is used for steel structure modeling design, wherein the established steel structure model includes a load-bearing model, a connection model, a top beam model and a reinforcement model, and a modular assembly structure is established between the steel structure models, which can facilitate construction connection and assembly. The three-dimensional modeling software constructs an installation plane according to the site size, and then the constructed steel structure model is reloaded on the installation plane. Each installation point and the steel structure model are dimensioned and a two-dimensional drawing is generated.

[0017] The beneficial effects of the above improved scheme are: the three-dimensional steel structure design based on the site size two-dimensional drawing can better simulate the actual situation of the site, improve the design accuracy, and reduce problems in the later construction; the modular steel structure model can optimize the construction process, improve the construction efficiency, reduce unnecessary construction period and cost, improve the construction quality, and reduce the problem of rework in the later stage; the steel structure model is reloaded on the installation plane simulating the construction site, which can predict the construction difficulty and safety, and reduce the risk and problems in the later construction.

[0018] Further, the specific steps of establishing the steel structure model entity splicing production and grouping and marking according to the function attribute and installation sequence include:

[0019] According to the design two-dimensional drawing, the steel structure model is produced in entity, and the produced steel structure components are grouped and marked according to the installation sequence. First, the functional groups are grouped according to the local function of the steel structure, and then the serial numbers are arranged according to the installation sequence. The grouping serial number is marked on the body of each steel structure component, which facilitates the installation and construction of the steel structure support beam in the later stage.

[0020] Further, the steel structure support beam comprises two groups of symmetrically arranged bearing columns, the top end of the bearing column is fixedly welded with a bearing seat, the bottom end of the bearing column is provided with a connecting seat, the connecting seat is provided with a fixing bolt through hole, the top end of the bearing seat is fixedly connected with a movable connection assembly through a bolt, the top end of the bearing seat is connected with a movable beam through the movable connection assembly, the bearing beams are fixedly connected between the bearing columns through a fixed groove, the fixed groove is provided with a clamping groove, the two ends of the bearing beam are provided with clamping blocks matched with the clamping groove, and the top end of the bearing beam is fixedly installed with a telescopic sleeve.

[0021] The beneficial effects of the above improvement scheme are: through the above setting, the steel structure support beam is constructed, the steel structure support beam is supported by the bearing column and the bearing seat, the movable connection assembly is arranged for connecting the movable beam and the I-shaped cross steel, and the movable beam can be expanded and contracted at both ends, so that the telescopic sleeve drives the movable beam to adjust the angle and has a horizontal activity space for up and down angle adjustment.

[0022] Further, the bearing column is an I-shaped steel structure, four groups of assembly clamping grooves are arranged on the bearing seat, four groups of through holes are also arranged on the bearing seat, the movable connection assembly comprises a connecting end, four groups of assembly protrusions matched with the sizes of the assembly clamping grooves are arranged at the bottom end of the connecting end, and through holes corresponding to the positions of the through holes on the bearing seat are also arranged on the connecting end.

[0023] The beneficial effects of the above improvement scheme are: through the arrangement of the assembly clamping grooves and the assembly protrusions, the assembly type structure is formed between the bearing seat and the movable connection assembly, which facilitates the installation and accelerates the construction efficiency.

[0024] Further, the movable connection assembly further comprises a first direction connecting groove and a second direction connecting groove, the first direction connecting groove and the second direction connecting groove are fixedly connected with the top end of the connecting end through welding, sliding grooves are arranged on both sides of the first direction connecting groove, a sliding seat is slidably connected in the sliding groove, the sliding seat comprises a fixed seat, the both ends of the fixed seat are circular pieces, an installation through hole is arranged in the middle of the fixed seat, a sliding bearing is sleeved on the outer wall of the middle of the fixed seat, and the fixed seat is used for sliding in cooperation with the sliding groove through the sliding bearing.

[0025] The beneficial effects of the above improvement scheme are: the first direction connecting groove is arranged for connecting the fixed movable beam, the sliding groove, the sliding seat, the fixed seat, the circular piece and the sliding bearing are arranged, so that the sliding seat can slide in the sliding groove, and the sliding block can slide horizontally through the fixed seat.

[0026] Further, the sliding groove between the two sides is fixedly connected with a sliding block through a fixing seat matched with a bolt, the bottom end of the sliding block is provided with a limiting sliding block, the bottom end of the first direction connecting groove is provided with a limiting sliding groove matched with the size of the limiting sliding block, the end of the sliding block away from the first direction connecting groove is rotationally provided with a first gear set, the side of the sliding block close to the first gear set is provided with a connecting through hole, the two sides of the connecting through hole are rotationally installed with a rotating auxiliary block through a rotating shaft, the end of the rotating auxiliary block away from the first gear set is provided with a first movable cross beam and a second movable cross beam, the movable beam includes the first movable cross beam and the second movable cross beam, the rotating auxiliary block is provided with a protruding tooth matched with the first gear set, and the first movable cross beam and the second movable cross beam are connected through a hinged movable connection.

[0027] The beneficial effects of the above improvement scheme are: through the above setting, the sliding block can be matched and slid through the limiting sliding block at the bottom end and the limiting sliding groove at the bottom end of the first direction connecting groove, and the first gear set is matched with the first movable cross beam to assist the angle adjustment of the first movable cross beam and the second movable cross beam.

[0028] Further, the specific steps for assembling and installing the solidified steel structure component to form a steel structure support beam include:

[0029] First step: according to the two-dimensional drawing of the marked installation point, the inside of the installation site is measured and laid out by a total station instrument, and the installation position of the load-bearing column is marked;

[0030] Second step: excavate a longitudinal deep foundation pit at the marked installation position, and set a pre-embedded part, the pre-embedded part includes a concrete part and a connecting node part, the concrete part includes an internal steel reinforcement cage and an external solid concrete, and the top end of the steel reinforcement cage is connected with a connecting node for fixing the load-bearing column;

[0031] Third step: the connecting node at the top end of the pre-embedded part is fixedly installed with the connecting seat at the bottom end of the load-bearing column through a fastening anchor bolt;

[0032] Fourth step: on the top end of the load-bearing seat of the load-bearing column, the movable connecting assembly is fixedly limited by the assembly protruding block on the bottom end connecting end and the assembly clamping groove on the load-bearing seat through mutual clamping, and the load-bearing seat and the movable connecting assembly are fixedly installed through an anchor bolt;

[0033] Fifth step: the fixed groove is fixedly installed between the two load-bearing columns through a bolt, and the two ends of the load-bearing beam are fixedly connected with the clamping groove on the fixed groove through a clamping block, and then the fixed groove and the load-bearing beam are locked and fixedly installed through an anchor bolt;

[0034] Sixth step: the telescopic sleeve is fixed and installed at the top of the load-bearing beam through the bolt corresponding hole position, the first movable cross beam and the second movable cross beam are fixedly connected through the hinge shaft to form the movable beam, the movable beam is lifted through hoisting, and the two ends of the movable beam are fixed and installed through the connecting shaft using the rotating auxiliary block and the sliding blocks on the two sides. When installing, it should be ensured that the teeth of the two rotating auxiliary blocks are kept at the same angle with the gear teeth on the first gear set, and the top of the telescopic sleeve is in contact with the bottom of the movable beam, and the installation of the steel structure support beam is completed.

[0035] Further, the specific steps of connecting the multiple steel structure support beams through the I-beam to form the steel structure building frame include:

[0036] The multiple steel structure support beams are installed in sequence, and the adjacent steel structure supports are connected and installed using the I-beam. The I-beam includes a steel beam body, the two ends of the steel beam body are provided with assembly ends, the steel beam body is provided with an assembly groove matched with the second direction connecting groove, and the assembly groove and the second direction connecting groove are fixedly installed through bolts. After all the steel structure support beams in the site are connected with each other, the steel structure building frame is formed.

[0037] Compared with the prior art, the assembly type steel structure building construction method has the beneficial effects that: by setting the load-bearing column, the load-bearing seat, the movable connection assembly, the movable beam and the load-bearing beam, the steel structure support beam is constructed, the steel structure support beam is supported by the load-bearing column cooperating with the load-bearing seat, the movable connection assembly is set to connect the movable beam and the I-beam, and can cooperate with the two ends of the movable beam to stretch and retract, so that the telescopic sleeve drives the movable beam to be capable of angle adjustment and has a transverse movement space for up-down angle adjustment; by setting the assembly clamping groove and the assembly protruding block, the assembly type structure is formed between the load-bearing seat and the movable connection assembly, which facilitates installation and accelerates construction efficiency; by setting the first direction connecting groove for connecting and fixing the movable beam, the sliding groove, the sliding seat, the fixed seat, the circular piece and the sliding bearing are set, so that the sliding seat can slide in the sliding groove, and the sliding block can slide transversely through the fixed seat; by setting the sliding block, the sliding block can slide through the bottom limiting sliding block and the limiting sliding groove at the bottom of the first direction connecting groove, and the first gear set cooperates with the first movable cross beam to assist the angle adjustment of the first movable cross beam and the second movable cross beam. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor intensity.

[0039] Figure 1 It is a structural schematic view of the steel structure building frame in the application;

[0040] Figure 2 It is a structural schematic view of the steel structure support beam in the application;

[0041] Figure 3 It is a structural schematic view of the first direction connecting groove in the application;

[0042] Figure 4 It is a construction flow chart of the application;

[0043] In the drawings, the components represented by each reference numeral are listed as follows:

[0044] 10, load-bearing column; 11, load-bearing seat; 12, movable connecting assembly; 13, movable beam; 14, fixed groove; 15, load-bearing beam; 16, telescopic sleeve; 17, output rod; 18, assembly clamping groove; 19, connecting end; 20, assembly protruding block; 21, first direction connecting groove; 22, second direction connecting groove; 23, sliding groove; 24, sliding seat; 25, fixed seat; 26, circular piece; 27, sliding bearing; 28, sliding block; 29, limiting sliding block; 30, first gear set; 31, clamping block; 32, rotation auxiliary block; 33, first movable cross beam; 34, second movable cross beam; 35, steel beam body; 36, assembly end. DETAILED DESCRIPTION

[0045] To make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application.

[0046] As Figure 4 shown, it is a flow chart of the assembly type steel structure building construction method provided by the application, including the following steps:

[0047] S10: measure the size of the construction site, and draw a site size drawing according to the measured value;

[0048] S20: establish a construction plane by modeling software according to the drawn site size drawing, and establish a steel structure model on the construction plane;

[0049] S30: solidify the established steel structure model for splicing production, and mark in groups according to the function attribute and installation sequence;

[0050] S40: assemble and install the solidified steel structure component, and form a steel structure support beam after installation;

[0051] S50: connect through I-shaped cross steel between the plurality of steel structure support beams, and form a steel structure building frame.

[0052] In the above technical solution, the specific steps of measuring the size of the construction site and drawing a site size drawing according to the measured values include:

[0053] The distance and angle between multiple horizontal and vertical orientation points are measured using a total station inside the construction site to collect the flatness information of the construction site, and the size data collected helps the drafters draw the site size drawing.

[0054] In the above technical solution, the specific steps of measuring the distance and angle between multiple horizontal and vertical orientation points using a total station inside the construction site include:

[0055] Step 1: Use the distance measurement function of the total station to select the points to be measured on the construction site, and record the distance between each point and the target point.

[0056] Step 2: Use the angle measurement function of the total station to select the points to be measured on the construction site, and record the angle between each point and the target point.

[0057] Step 3: Import the measured distance and angle data into the software for data processing and analysis.

[0058] Step 3: Calculate the flatness information of the construction site based on the analysis results of the data.

[0059] For example, the average distance deviation and angle deviation between horizontal and vertical points can be calculated to evaluate the flatness of the construction site.

[0060] Using a total station to measure the distance and angle between multiple horizontal and vertical orientation points can quickly and efficiently obtain the flatness information of the construction site, providing basic data for the evaluation of construction quality.

[0061] Further, in the above technical solution, the specific steps of establishing a construction plane based on the drawn site size drawing and establishing a steel structure model on the construction plane include:

[0062] Step 1: Use three-dimensional modeling software to design steel structure modeling based on the drawn site size drawing, where the established steel structure model includes load-bearing model, connection model, top beam model and reinforcement model.

[0063] Step 2: Establish a modular assembly structure between the steel structure models to facilitate construction connection and assembly.

[0064] Step 3: Construct an installation plane in 3D modeling software based on the site dimensions, then replicate the completed steel structure model on the installation plane, mark the dimensions of each installation point and the steel structure model, and generate 2D drawings.

[0065] Furthermore, in the above technical solution, the specific steps for producing the solidified steel structure model by splicing and grouping it according to its functional attributes and installation sequence include:

[0066] Based on the design 2D drawings, the steel structure model is produced in a physical form. The produced steel structure components are grouped and marked according to the installation sequence. First, they are grouped by functional category according to the local function of the steel structure. Then, they are arranged by serial number according to the installation order. The group number is marked on the body of each steel structure component to facilitate the later installation of the steel structure support beams.

[0067] Among them, the steel structural components that play a load-bearing role are group A, the steel structural components that play a connecting role are group B, and the steel structural components that play a role in strengthening the structural connection strength are group C. The first steel structural component to be installed in the current group is number 1, and then the installation is expanded in sequence.

[0068] like Figures 1-3 As shown, in the above technical solution, the steel structure support beam includes two sets of symmetrically arranged load-bearing columns 10. The top of the load-bearing column 10 is fixedly welded with a load-bearing seat 11, and the bottom of the load-bearing column 10 is provided with a connecting seat. The connecting seat is provided with a fixing bolt through hole. The top of the load-bearing seat 11 is fixedly connected with a movable connecting component 12 by bolts. The top of the load-bearing seat 11 is connected to a movable beam 13 through the movable connecting component 12. The load-bearing columns 10 are fixedly connected with a load-bearing beam 15 through a fixing groove 14. The fixing groove 14 is provided with a snap-fit ​​groove. Both ends of the load-bearing beam 15 are provided with snap-fit ​​blocks 31 that are adapted to the snap-fit ​​groove. The top of the load-bearing beam 15 is fixedly installed with a telescopic sleeve 16. The output rod 17 of the telescopic sleeve 16 is in direct contact with the bottom of the movable beam 13.

[0069] Furthermore, in the above technical solution, the load-bearing column 10 is an I-beam structure, the load-bearing seat 11 is provided with 4 sets of assembly slots 18, and the load-bearing seat 11 is also provided with 4 sets of through holes. The movable connection component 12 includes a connection end 19, and the bottom end of the connection end 19 is provided with 4 sets of assembly protrusions 20 that are adapted to the size of the assembly slots 18. The connection end 19 is also provided with through holes at positions corresponding to the through holes on the load-bearing seat 11. The through holes are used to cooperate with the fixing anchor bolts to fix the load-bearing seat 11 and the connection end 19.

[0070] Further, in the above technical solution, the movable connection assembly 12 further comprises a first direction connection groove 21 and a second direction connection groove 22, both of which are fixedly connected with the top end of the connecting end 19 by welding, both sides of the first direction connection groove 21 are provided with sliding grooves 23, a sliding seat 24 is slidingly connected inside the sliding groove 23, the sliding seat 24 comprises a fixed seat 25, both ends of the fixed seat 25 are circular pieces 26, an installation through hole is provided in the middle part of the fixed seat 25, a sliding bearing 27 is sleeved on the outer wall of the middle part of the fixed seat 25, and the fixed seat 25 is used for sliding in cooperation with the sliding groove 23 through the sliding bearing 27.

[0071] Further, in the above technical solution, the sliding blocks 28 are fixedly connected between the sliding grooves 23 on both sides through the fixed seat 25 and bolts, the bottom end of the sliding block 28 is provided with a limiting sliding block 29, the bottom end of the first direction connection groove 21 is provided with a limiting sliding groove matched with the size of the limiting sliding block 29, a first gear set 30 is rotationally arranged at the end of the sliding block 28 away from the first direction connection groove 21, a connecting through hole is arranged on the side of the sliding block 28 close to the first gear set 30, rotating auxiliary blocks 32 are rotationally installed on both sides of the connecting through hole through rotating shafts, a first movable cross beam 33 and a second movable cross beam 34 are arranged at the end of the rotating auxiliary block 32 away from the first gear set 30, the movable cross beam 13 comprises the first movable cross beam 33 and the second movable cross beam 34, the rotating auxiliary block 32 is provided with a convex tooth matched with the first gear set 30, and the first movable cross beam 33 and the second movable cross beam 34 are movably connected through hinging.

[0072] Further, in the above technical solution, the entity steel structure component is assembled and installed, and the specific steps of installing the steel structure support beam after installation include:

[0073] First step: according to the two-dimensional drawing of the marked installation point, the inside of the installation site is measured and marked out by a total station, and the installation position of the load-bearing column 10 is marked out;

[0074] Second step: a longitudinal foundation pit is dug at the marked installation position, and a pre-embedded part is arranged, the pre-embedded part comprises a concrete part and a connecting node part, the concrete part comprises an internal steel reinforcement cage and an external solid concrete, and the top end of the steel reinforcement cage is connected with the connecting node, and the connecting node is used for fixing the load-bearing column 10;

[0075] Third step: the connecting node of the pre-embedded part is fixedly installed with the connecting seat at the bottom end of the load-bearing column 10 through a fastening anchor bolt;

[0076] Fourth step: on the top of the load-bearing column 10, the movable connection assembly 12 is fixed and limited by the assembly protruding block 20 on the bottom end connecting end 19 and the assembly clamping groove 18 on the load-bearing seat 11, and the load-bearing seat 11 and the movable connection assembly 12 are fixed and installed by anchor bolts;

[0077] Fifth step: the fixed groove 14 is fixed and installed by bolts between the two load-bearing columns 10, and the two ends of the load-bearing beam 15 are fixed and limited by the clamping block 31 and the clamping groove on the fixed groove 14, and the fixed groove 14 and the load-bearing beam 15 are locked and fixedly installed by anchor bolts;

[0078] Sixth step: the telescopic sleeve 16 is fixed and installed by bolts on the top of the load-bearing beam 15, the first movable cross beam 33 and the second movable cross beam 34 are fixed and connected by the hinge shaft to form the movable beam 13, the movable beam 13 is fixed and installed by the rotating auxiliary block 32 and the sliding block 28 on both sides by the connecting shaft, and the protruding teeth of the rotating auxiliary block 32 on both sides should be kept at the same angle with the gear teeth on the first gear set 30 during installation, and the top of the telescopic sleeve 16 is in contact with the bottom of the movable beam 13, and the installation of the steel structure support beam is completed.

[0079] Further, in the above technical solution, the I-shaped steel is used to connect the plurality of steel structure support beams to form the specific steps of the steel structure building frame, which includes:

[0080] The plurality of steel structure support beams are installed in sequence, the I-shaped steel is used to connect and install the adjacent steel structure support beams, the I-shaped steel includes a steel beam body 35, the both ends of the steel beam body 35 are provided with assembly ends 36, the steel beam body 35 is provided with assembly grooves matched with the second direction connecting grooves 22, the assembly grooves and the second direction connecting grooves 22 are fixed and installed by bolts, and after all the steel structure support beams in the site are connected with each other, the steel structure building frame is formed.

Claims

1. A method of constructing a fabricated steel building structure, characterized by, The method comprises the following steps: S10: measuring the size of the construction site, and drawing a site size drawing according to the measured values; S20: establishing a construction plane by modeling software according to the drawn site size drawing, and establishing a steel structure model on the construction plane; S30: entity splicing production of the established steel structure model, and grouping marking according to the function attribute and installation sequence; S40: assembling and installing the entity steel structure component, and forming a steel structure support beam after installation; S50: connecting between multiple steel structure support beams through an I-shaped cross steel to form a steel structure building frame; The steel structure support beam comprises two groups of symmetrically arranged bearing columns (10), the top end of the bearing column (10) is fixedly welded with a bearing seat (11), the bottom end of the bearing column (10) is provided with a connecting seat, the connecting seat is provided with a fixing bolt through hole, the top end of the bearing seat (11) is fixedly connected with a movable connecting assembly (12) through a bolt, the top end of the bearing seat (11) is connected with a movable beam (13) through the movable connecting assembly (12), the bearing columns (10) are fixedly connected with a bearing beam (15) through a fixed groove (14), the fixed groove (14) is provided with a clamping groove, the two ends of the bearing beam (15) are provided with clamping blocks (31) matched with the clamping groove, the top end of the bearing beam (15) is fixedly installed with a telescopic sleeve (16), the output rod (17) of the telescopic sleeve (16) is in direct contact with the bottom end of the movable beam (13); the bearing column (10) is an I-shaped steel structure, the bearing seat (11) is provided with four groups of assembly clamping grooves (18), the bearing seat (11) is also provided with four groups of through holes, the movable connecting assembly (12) comprises a connecting end (19), the bottom end of the connecting end (19) is provided with four groups of assembly protruding blocks (20) matched with the assembly clamping grooves (18) in size, the connecting end (19) is also provided with through holes corresponding to the positions of the through holes of the bearing seat (11), the through holes are used for fixedly installing the bearing seat (11) and the connecting end (19) by cooperating with fixed anchor bolts; the movable connecting assembly (12) further comprises a first direction connecting groove (21) and a second direction connecting groove (22), the first direction connecting groove (21) and the second direction connecting groove (22) are fixedly connected with the top end of the connecting end (19) through welding, the two sides of the first direction connecting groove (21) are provided with sliding grooves (23), the sliding grooves (23) are slidably connected with sliding seats (24), the sliding seat (24) comprises a fixed seat (25), the two ends of the fixed seat (25) are circular pieces (26), the middle part of the fixed seat (25) is provided with an installation through hole, the middle part of the fixed seat (25) is provided with a sliding bearing (27), and the fixed seat (25) is used for sliding in cooperation with the sliding groove (23) through the sliding bearing (27).The sliding grooves (23) on both sides are fixedly connected with sliding blocks (28) through fixed seats (25) matched with bolts, the bottom end of the sliding block (28) is provided with a limiting sliding block (29), the bottom end of the first direction connecting groove (21) is provided with a limiting sliding groove matched with the size of the limiting sliding block (29), the end of the sliding block (28) away from the first direction connecting groove (21) is rotatably provided with a first gear set (30), the side of the sliding block (28) close to the first gear set (30) is provided with a connecting through hole, the two sides of the connecting through hole are rotatably provided with rotating auxiliary blocks (32) through rotating shafts, the end of the rotating auxiliary block (32) away from the first gear set (30) is provided with a first movable cross beam (33) and a second movable cross beam (34), the movable beam (13) comprises the first movable cross beam (33) and the second movable cross beam (34), the rotating auxiliary block (32) is provided with a convex tooth matched with the first gear set (30), and the first movable cross beam (33) and the second movable cross beam (34) are connected through hinged movement.

2. The method according to claim 1, wherein The specific steps of measuring the size of the construction site and drawing a site size drawing according to the measured values include: The distance and angle between multiple horizontal and vertical orientation points in the construction site are measured using a total station instrument to collect the flatness information of the construction site, and the size data collected helps the drawing personnel to draw the site size drawing.

3. The method according to claim 2, wherein The specific steps of establishing a construction plane by modeling software according to the drawn site size drawing, and establishing a steel structure model on the construction plane include: Steel structure modeling design is performed using three-dimensional modeling software according to the drawn site size drawing, wherein the established steel structure model includes a bearing model, a connecting model, a top beam model, and a reinforcing model, and a modular assembly structure is established between the steel structure models to facilitate construction connection and assembly. The installation plane is constructed according to the site size in the three-dimensional modeling software, and then the constructed steel structure model is reloaded on the installation plane. Each installation point and steel structure model is dimensionally marked and a two-dimensional drawing is generated.

4. The construction method of a fabricated steel structure building according to claim 3, wherein The specific steps of entity splicing production of the established steel structure model, and grouping marking according to the function attribute and installation sequence include: The steel structure model is produced according to the design two-dimensional drawing, and the produced steel structure component is grouped and marked according to the installation sequence. First, the steel structure is functionally grouped into a large category according to the local function, and then the serial number is arranged according to the installation sequence. The grouping serial number is marked on the body of each steel structure component to facilitate the installation and construction of the steel structure support beam in the later stage.

5. The method of claim 4, wherein the method further comprises: The specific steps of assembling and installing the entity steel structure component, and forming a steel structure support beam after installation include: First step: according to the two-dimensional drawing of the marked installation point, the installation site is measured and marked by a total station instrument, and the installation position of the bearing column (10) is marked; Second step: excavate a deep foundation pit at the marked installation position, and set a pre-embedded part. The pre-embedded part includes a concrete part and a connecting node part. The concrete part includes an internal steel reinforcement cage and an external solid concrete. The top end of the steel reinforcement cage is connected to the connecting node. The connecting node is used to fix the bearing column (10); Third step: the connecting node top end of the pre-embedded part is fixed and installed with the connecting seat at the bottom end of the bearing column (10) through a fastening anchor bolt. Fourth step: on the top of the load-bearing column (10) load-bearing seat (11), the movable connection assembly (12) through the bottom end of the connecting end (19) on the assembly protruding block (20) and the assembly of the load-bearing seat (11) on the card slot (18) each other carding fixed limit, through the anchor bolt load-bearing seat (11) and movable connection assembly (12) fixed installation; Fifth step: between the two sides of the load-bearing column (10) are fixed by bolt installation fixed slot (14), and the two ends of the load-bearing beam (15) through the carding block (31) and the fixed slot (14) on the carding slot each other carding fixed, and then through the anchor bolt fixed slot (14) and load-bearing beam (15) locking fixed installation; Sixth step: in the top of the load-bearing beam (15) through the bolt corresponding hole fixed installation telescopic sleeve (16), the first movable crossbeam (33) and the second movable crossbeam (34) between the fixed connection through the hinge shaft to form the movable beam (13), through the lifting, the movable beam (13) both ends are fixed by rotating auxiliary block (32) and the two sides of the sliding block (28) using the connecting shaft installation, installation should ensure that both sides of the rotating auxiliary block (32) protruding teeth and the first gear set (30) on the same angle, and the top of the telescopic sleeve (16) and the bottom of the movable beam (13) contact, complete the installation of steel structure support beam.

6. The method of constructing a building of fabricated steel construction according to claim 5 wherein, The specific steps of connecting multiple steel structure support beams through I-beam to form a steel structure building frame include: Multiple steel structure support beams are installed in sequence, and adjacent steel structure supports are connected and installed using I-beam. The I-beam includes a steel beam body (35), both ends of the steel beam body (35) are provided with assembly ends (36), the steel beam body (35) is provided with an assembly slot matched with the second direction connecting slot (22), and the assembly slot and the second direction connecting slot (22) are fixed and installed through a bolt. After all the steel structure support beams in the site are connected with each other, a steel structure building frame is formed.

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