A two-way bending and twisting dome support hoisting method

Abstract

The application discloses a two-way bending and twisting dome support hoisting method, and relates to the technical field of building construction methods.The two-way bending and twisting dome support hoisting method comprises the following steps: step one, construction of a basement foundation pit; step two, steel joint frame truss construction; and step three, installation of a roof structure.The step two further comprises: after the completion of installation of the main body steel structure on both sides of the truss, a stable frame system is formed; meanwhile, the temporary support of the truss is installed in place and is verified to be qualified; and then, the truss rod hoisting is started by using a field tower crane.The truss is segmented by considering factors such as the weight of the truss, the distribution position, the performance of the tower crane and the transportation conditions, the truss installation scheme adopts in-situ high-altitude assembly, the component segmentation principle is adopted, the component transportation deformation can be prevented, the on-site welding operation space is ensured, the production and installation are facilitated, the welding seam intersection and overlap are avoided as much as possible, and the welding stress concentration and the on-site welding amount are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction methods, in particular to a two-way bending and twisting dome support hoisting method. BACKGROUND

[0002] The hoisting of the dome structure of the building is an important part of the construction engineering, and is one of the parts with high difficulty and requirement in the building construction process, which is directly related to the progress of the project and the quality of the building and the cost of the construction. The dome structure refers to the suspended hemispherical space or area, which is usually built on the top of buildings such as public places and large venues. The steel structure dome refers to all radial beams and ring beams of the dome, which are welded by steel pipes. The steel structure component has the advantages of light self-weight, quick installation, good seismic performance, less environmental pollution, etc. The steel structure dome has the advantages of large internal space, good strength and stability, novel and beautiful shape, etc. Therefore, the steel structure dome is favored by the architecture. The French architectural style-the building shape is light, lively, and breaks the heaviness and depression brought by the concrete square box. It also pursues the overall building shape to be magnificent, and the whole body is full of neoclassical French style.

[0003] In the prior art, a hoisting method for a dome structure of a building is disclosed, which comprises the following steps: pouring a hoisting support platform and an anchor base in the building, then building a ring beam support tower on the hoisting support platform and anchoring the ring beam support tower through a steel cable, an anchor and the anchor base, then building a ring beam support on the top of the ring beam support tower, hoisting the ring beam segments by a crane in batches, and connecting the ring beam segments through the ring beam support, and then splicing the ring beam on the ring beam support.

[0004] In order to solve the problem that the inside and top of the building usually need to install production and transportation equipment, and the dome structure is very complex, the prior art adopts the method of simultaneously hoisting each top rack piece by two cranes, making one end of the top rack piece lap on the ring beam and the other end connect with the wall / frame body of the building, connecting each top rack piece through the top rack member to form a whole top rack, and connecting with the ring beam to form the dome structure, and then removing all auxiliary devices, thereby completing the hoisting of the dome structure of the building. However, due to the different centers of gravity, the truss installation scheme cannot be deformed during transportation and hoisting. SUMMARY

[0005] The present application provides a two-way bending and twisting dome support hoisting method to solve the problems in the background art.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A two-way bending and twisting dome support hoisting method, the two-way bending and twisting dome support hoisting method comprises the following steps:

[0008] Step one: construction of the basement foundation pit;

[0009] Step two: steel joint frame truss construction;

[0010] Step three: installation of the roof structure.

[0011] The step two further comprises:

[0012] (1) after the completion of the installation of the main steel structure on both sides of the truss, forming a stable frame system, at the same time, the temporary support of the truss is installed in place and passes the inspection, the truss member hoisting is started by using the on-site tower crane.

[0013] (2) before pouring the concrete on the F1 floor, the temporary support embedded part is buried.

[0014] (3) the truss is hoisted in the order of lower chord, column, upper chord and diagonal brace from bottom to top, and after the whole chord is installed in place, the connecting steel beam between each truss is installed to ensure the overall stability during the truss installation.

[0015] (4) the component positioning is measured and positioned by using high-precision total station.

[0016] (5) the hoisting is sequentially carried out from west to east, and after the completion of the installation of the truss chord, the floor steel beam between the adjacent structures is immediately installed to ensure the lateral stability during the truss installation.

[0017] (6) after the completion of the welding of the truss structure and the removal of the temporary support, the upper floor concrete pouring of the truss can be carried out.

[0018] Further improvement of the technical scheme of the application is that the step one further comprises:

[0019] S1: according to the building construction, the construction of the basement concrete structure is carried out, and the installation of the underground steel column embedded part and the segmented steel column is carried out by using the tower crane, and then the construction of the basement concrete is carried out;

[0020] S2: according to the construction scheme from bottom to top, the installation of the first floor steel beam and the construction of the first floor concrete and the installation of the segmented steel column on the ground of the main building are carried out;

[0021] S3: the segmented processing and manufacturing of the truss component is used to reduce the length of the transportation component, facilitate the convenient transportation of the steel structure component, and the temporary support auxiliary in-situ high-altitude assembly is adopted in the truss on-site construction.

[0022] Further improvement of the technical scheme of the present application is that the steel column is hoisted by using foundation bolts, bottom plate pouring, and after the concrete curing of the bottom plate reaches the strength, the first section of the stiff steel column is hoisted, the steel column is positioned and adjusted, and after the steel column is installed in place, the anchor bolt is poured again.

[0023] Further improvement of the technical scheme of the present application is that before hoisting, brown ropes are tied at both ends of the truss bar as sliding ropes, which is beneficial to maintaining the balance of the bar in the air and improving the installation efficiency, and after the hoisting steel wire rope is bound, it is tested on the ground for the second time, about 5cm away from the ground, to observe whether it is horizontal or skewed, and after the test balancing, it can be formally lifted.

[0024] Further improvement of the technical scheme of the present application is that before hoisting, the surface dirt of the bar should be cleaned; the connecting plate and the friction surface generating rust are derusted before hoisting, and the welded positioning plate is welded at the end of the bar, and the bar should be paid attention to the forward and reverse directions and the horizontal direction before hoisting, and be clearly marked to ensure correct installation.

[0025] Further improvement of the technical scheme of the present application is that during hoisting, through the adjustment measures of the jig frame, the inverted chain, the steel support, the jack, etc., the preliminary positioning of the component is completed under the observation of the total station instrument, and the component is fixed by using the temporary connecting plate, and then the hoisting of the next component is carried out, the axis control of the truss bar: the center line of each bar is marked before hoisting, the center line is aligned with the axis on the steel column bracket when the bar is positioned, and the self-made simple beam corrector is used for leveling and correction, the bar correction can be assisted by the jack, the hand-operated hoist, etc., once the correction is in place, the positioning baffle is welded and fixed at each connecting node, the steel column and the upper chord of the truss are connected by using the conventional bolted joint, the steel column and the upper chord of the truss, the web bar are connected by using the welded joint, and the steel beam and the truss bracket are connected by using the high-strength bolt connection.

[0026] Further improvement of the technical scheme of the present application is that the step three further comprises:

[0027] A1: assembly of the roof net shell and installation of the lifting support

[0028] A2: installation of the embedded bar of the roof net shell

[0029] A3: construction of the concrete

[0030] A4: completion acceptance

[0031] Further improvement of the technical scheme of the present application is that: the roof member is processed and manufactured in sections, the roof is installed on site by adopting the construction scheme of ground assembly and overall lifting, the roof adopts single-layer two-way grid steel arch shell structure, the two-way arch shell structure is smooth in curve, the main and secondary beams of the roof are gradually bent and twisted box members, the cross section is trapezoidal section, then according to the overall lifting engineering requirements, combined with the characteristics of hydraulic synchronous overall lifting technology, the steel structure is ensured to be successfully lifted according to the design requirements.

[0032] Further improvement of the technical scheme of the present application is that: according to the load transmission route of the roof, the original support structure is used as a lifting point as much as possible, the support structure includes a proximal end lifting support and a distal end lifting support, the lifting support includes a column top support, a cross beam is arranged at the top of the column top support, a hydraulic oil pump is arranged at the top of one end of the cross beam, a lifting point is arranged at the bottom of the hydraulic oil pump, a roof is arranged at the bottom of the lifting point, a steel column is arranged at the bottom of the column top support, a reinforcing support is fixedly installed on the side surface of the steel column, a steel beam is arranged at the top of the other end of the reinforcing support, one end of the steel beam is arranged at the top of one side of the steel column, the distal end lifting support includes a stand column, a lateral support is fixedly connected to one side of the bottom of the stand column, a lifting beam is fixedly installed at the top of the stand column, the bottom of the lifting beam is arranged at the top of the lateral support, a hydraulic lifting machine is arranged at the top of one end of the lifting beam, a lower lifting point is arranged at the bottom of the hydraulic lifting machine and extends to the bottom of the lifting beam, a rear pull rod is fixedly connected to the side surface of the other end of the lifting beam, a rear bracing plate is fixedly installed at the bottom of the rear pull rod, a beam plate frame is arranged at the bottom of the rear bracing plate, an inclined brace is arranged at one end of the bottom of the lifting beam, the lifting points arranged should meet the requirements that the deformation and stress of the roof are within the controllable range of the relevant specifications, according to the structural characteristics of the roof, the lifting points are arranged on the floor structures at the same height, the floor steel columns and steel beams are the main force transmission members of the roof structure, the lifting supports are arranged at the top of the steel columns, and the lifting supports are arranged uniformly according to the roof.

[0033] Further improvement of the technical scheme of the present application is that: the hydraulic lifting equipment is installed on the lifting frame, after installation and inspection, the synchronous overall lifting of the roof is started, the computer is used to control the hydraulic synchronous lifting, the principle of the flexible steel wire bearing, the lifting oil cylinder cluster, the computer control and the hydraulic synchronous lifting are used, after the roof is lifted into position, the connecting steel beams between the roof and the main structure and the embedded sections are installed, after all the components are installed, the roof is lifted and unloaded, and the lifting supports are removed.

[0034] Due to the adoption of the above technical scheme, the present application has the following technical progress compared with the prior art:

[0035] The present application provides a kind of two-way bending and twisting dome support hoisting method, by considering truss weight, distribution position, tower crane performance and transportation conditions and other factors, truss is segmented, truss installation scheme adopts in situ high-altitude assembly, need to meet the component segmentation principle of transportation requirement, at the same time, to prevent component transportation deformation, need to meet the component segmentation principle of transportation requirement, at the same time, to prevent component transportation deformation, and on-site welding should guarantee welding operation space, facilitate production, installation, avoid weld intersection, overlap as much as possible, reduce welding stress concentration and on-site welding amount.

[0036] The present application provides a kind of two-way bending and twisting dome support hoisting method, by arranging uniformly as a whole, 16 lifting points are provided, which facilitates on-site installation and ensures hoisting safety.

[0037] The present application provides a kind of two-way bending and twisting dome support hoisting method, by computer control hydraulic synchronous lifting technology, using flexible steel wire bearing, lifting cylinder cluster, computer control, hydraulic synchronous lifting new principle, and the lifting system has millimeter-level fine adjustment function, can realize vertical precise positioning in the air, the degree of automation of equipment is high, operation is convenient and flexible, safety is good, reliability is high, wide adaptability, strong universality, equipment volume is small, self-weight is light, bearing capacity is large, especially suitable for lifting large-tonnage components in narrow space or indoor.

[0038] The present application provides a kind of two-way bending and twisting dome support hoisting method, by setting the bottom of the lifting point on the top of the roof, hydraulic moving by wheel eye hydraulic oil pump, achieving the function of hydraulic lifting, and cooperating with the reinforcing support connecting support steel beam and steel column, achieving the function of reinforcing support, then lifting the support from the far end, cooperating with the four corners of the roof hoisted by the lower lifting point, facilitating the stable stretching of the roof, and cooperating with the support connection of diagonal bracing and lateral bracing, improving the fixity of the lifting support, the reinforcing property of the rear pull rod and the rear strength plate, increasing the safety performance of the device, facilitating convenient processing of the device, which is conducive to increasing the stability of the device and increasing the safety performance of the staff. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 The flowchart of the present application is shown in the figure;

[0040] Figure 2 The segmented transportation and hoisting flowchart of the present application is shown in the figure;

[0041] Figure 3 The installation flowchart of the roof structure of the present application is shown in the figure;

[0042] Figure 4 This is a schematic diagram of the beam-plate frame structure of the present invention;

[0043] Figure 5 This is a schematic diagram of the proximal lifting support structure of the present invention;

[0044] Figure 6 This is a schematic diagram of the structure of the distal lifting bracket of the present invention;

[0045] Figure 7 This is a schematic diagram showing the state of the roof during lifting according to the present invention;

[0046] Figure 8 This is a schematic diagram of the overall roof assembly structure of the present invention;

[0047] Figure 9 This is a front view of the overall external outline of the roof of the present invention;

[0048] Figure 10 This is a schematic diagram of the overall outline of the roof of the present invention at a 45° angle.

[0049] In the diagram: 1. Beam frame; 2. Near-end lifting support; 21. Crossbeam; 22. Hydraulic pump; 23. Steel beam; 24. Steel column; 25. Reinforcing support; 26. Column top support; 27. Upper lifting point; 3. Far-end lifting support; 30. Column; 31. Lifting beam; 32. Hydraulic lifting machine; 33. Lower lifting point; 34. Diagonal brace; 35. Lateral support; 36. Rear tie rod; 37. Rear stiffening plate; 4. Roof; 41. Edge sealing beam; 42. Corner main beam; 43. Central main beam; 44. Assembled side beam; 45. Upper lifting point. Detailed Implementation

[0050] The present invention will be further described in detail below with reference to embodiments: Example

[0051] like Figures 1-6 As shown, the present invention provides a method for hoisting a bidirectional torsion dome support, which includes the following steps:

[0052] Step 1: Construction of the basement foundation pit;

[0053] Step 2: Construction of the steel truss structure;

[0054] Step 3: Installation of the roof structure;

[0055] The step one further comprises: S1, according to the construction, constructing the basement concrete structure, and installing the underground steel column embedded part and the steel column section by using the tower crane, and then constructing the basement concrete; S2, according to the bottom-up construction scheme, installing the first floor steel beam and the first floor concrete, and installing the main building ground steel column section; S3, processing and manufacturing the truss member section by section, reducing the length of the transported part, facilitating the convenient transportation of the steel structure part, adopting the temporary support auxiliary in-situ high assembly in the truss field construction, hoisting the steel column, installing by using the anchor bolt, pouring the bottom plate, curing the bottom plate concrete to reach the strength, then hoisting the first section steel column, positioning and adjusting the steel column, after installing the steel column in place, pouring the anchor bolt again.

[0056] In the embodiment, according to the construction, the basement concrete structure is constructed, and the underground steel column embedded part and the steel column section are installed by using the tower crane, and then the basement concrete is constructed, according to the bottom-up construction scheme, the first floor steel beam and the first floor concrete are installed, and the main building ground steel column section is installed, the truss member is processed and manufactured section by section, facilitating the convenient transportation of the steel structure part, the temporary support is installed before pouring the first floor slab, and the temporary support is installed after the first floor slab post-pouring belt building is completed and curing reaches the strength. Embodiment

[0057] As Figures 1-6As shown, on the basis of embodiment 1, the application provides a technical solution: preferably, step two further comprises: (1) after the main steel structure on both sides of the truss is installed to form a stable frame system, and the temporary support of the truss is installed in place and passes the inspection, the truss member hoisting is started using the on-site tower crane, (2) the temporary support embedded parts are embedded before the F1 floor concrete is poured, (3) the truss is hoisted in the order of lower chord, column, upper chord, diagonal brace from bottom to top, and after the chord is installed in place, the connecting steel beams between the trusses are installed to ensure the overall stability during the truss installation, (4) the high-precision total station is used for measuring and positioning the component positioning, (5) the hoisting is sequentially performed from west to east, and after the truss chord is installed, the floor steel beams between the adjacent structures are immediately installed to ensure the lateral stability during the truss installation, (6) after the truss structure is completely welded, the temporary support is removed after the unloading is completed, and then the upper floor concrete pouring of the truss can be performed; before hoisting, brown ropes are tied at both ends of the truss member as sliding ropes, which is beneficial to maintaining the aerial balance of the member to improve the installation efficiency; after the hoisting steel wire rope is bound, it is tested on the ground for the second time, about 5 cm away from the ground, whether it is horizontal or skewed is observed, and after the balance is tested, it can be formally hoisted; before hoisting, the surface dirt of the member should be cleaned; the connecting plate and the friction surface generating rust are derusted before hoisting, and the welded positioning plate is welded at the end of the member; before hoisting the member, the forward and reverse directions and the horizontal direction of the member should be noted and clearly marked to ensure correct installation; during hoisting, the preliminary positioning of the component is completed under the observation of the total station through the bed frame, inverted chain, steel support, jack and other adjustment measures, and the component is fixed by using the temporary connecting plate, and then the hoisting of the next component is performed; the axis control of the truss member: the center line of each member is marked before hoisting, the center line is aligned with the axis on the steel column bracket when the member is in place, and the self-made simple beam corrector is used for leveling and correction; the member correction can be assisted by the jack and the hand-operated hoist, and once the correction is in place, the positioning baffle is welded and fixed at each connecting node; the steel column and the upper chord of the truss adopt the conventional bolted joint, the steel column and the upper chord of the truss and the web member adopt the welded joint, and the steel beam and the truss bracket adopt the high-strength bolt connection.

[0058] In the present embodiment, by the truss two sides main body steel structure installation is completed, forms the stable frame system, simultaneously the truss temporary support installation is in place and is verified qualified after, using the on-site tower crane starts truss member hoisting, truss installation scheme adopts in situ high-altitude assembly, the middle and southern truss segmented thought is chord two to three sections, column, diagonal rod uses natural segmentation mode and hoists, main building middle F~G axle intersection 4~7 axle, F3~F4 layer sets up 4 span truss, truss and both sides steel column bracket butt joint, through floor steel beam connection between each truss, the lobby of the podium south department A~B axle intersection 4~7 axle, F2~F3 layer sets up 2 span open-web truss, truss and both sides steel column bracket butt joint, through steel beam connection between trusses, podium southwest side RA~RC axle intersection R1~R3 axle, F2~F3 layer sets up 1 span cantilevered arc-shaped composite truss, truss and both sides steel column bracket butt joint, truss according to from bottom to top order in turn hoists lower chord, column, upper chord, diagonal brace, while chord whole installation is in place, welds and installs the steel beam of each truss interconnection, ensures the overall stability in the truss installation process. Embodiment

[0059] As Figures 1-6As shown, on the basis of embodiment 1, the application provides a technical solution: preferably, step three further comprises: A1: assembling of the roof net shell and installation of the lifting support; A2: installation of the roof net shell embedded rod; A3: construction of concrete; A4: completion acceptance; the roof adopts a single-layer two-way net grid steel arch shell structure, the two-way arch shell structure curve is smooth, the main and secondary roof beams are gradually bent and twisted box-shaped components, and the cross section form is a trapezoidal cross section, then according to the overall lifting engineering requirements, combined with the characteristics of the hydraulic synchronous overall lifting technology, in order to ensure that the steel structure is successfully lifted according to the design requirements, according to the load transmission route of the roof, the original support structure is used as a lifting lifting point as much as possible, the support structure comprises a near-end lifting support 2 and a far-end lifting support 3, the lifting support 2 comprises a column top support 26, the top of the column top support 26 is provided with a cross beam 21, the top of one end of the cross beam 21 is provided with a hydraulic oil pump 22, the bottom of the hydraulic oil pump 22 is provided with an upper lifting point 27, the bottom of the upper lifting point 27 is provided with a roof 4, the bottom of the column top support 26 is provided with a steel column 24, the side surface of the steel column 24 is fixedly installed with a reinforcing support 25, the top of the other end of the reinforcing support 25 is provided with a steel beam 23, one end of the steel beam 23 is arranged at the top of one side of the steel column 24, the far-end lifting support 3 comprises a stand column 30, one side of the bottom of the stand column 30 is fixedly connected with a lateral support 35, the top of the stand column 30 is fixedly installed with a lifting beam 31, the bottom of the lifting beam 31 is arranged at the top of the lateral support 35, the top of one end of the lifting beam 31 is provided with a hydraulic lifting machine 32, the bottom of the hydraulic lifting machine 32 and extending to the bottom of the lifting beam 31 is provided with a lower lifting point 33, the side surface of the other end of the lifting beam 31 is fixedly connected with a rear pull rod 36, the bottom of the rear pull rod 36 is fixedly installed with a rear tension plate 37, the bottom of the rear tension plate 37 is provided with a beam plate frame 1, one end of the bottom of the lifting beam 31 is provided with an inclined brace 34, the lifting points arranged should meet the roof deformation and stress within the controllable range of the relevant specification, according to the roof structure characteristics, the lifting points are arranged on the floor structure at the same height, the floor steel column and the steel beam are the main force transmission components of the roof structure, the lifting support is arranged at the column top position of the steel column, and the lifting supports are uniformly arranged according to the roof, and a total of sixteen lifting points are arranged, when the lifting installation is completed, the computer is used for controlling the hydraulic synchronous lifting, the new principle of the flexible steel wire load bearing, the lifting oil cylinder cluster, the computer control and the hydraulic synchronous lifting, combined with the modern construction technology, after thousands of tons of components are assembled on the ground, the components are integrally lifted to the predetermined position for installation, the large-tonnage, large-span and large-area super-large component high-altitude overall synchronous lifting is realized, and the computer control hydraulic synchronous lifting system is composed of a steel wire and a lifting oil cylinder cluster, a hydraulic pump station, a sensing detection and computer control and remote monitoring system and the like.

[0060] In the embodiment, the roof is segmented and processed, and the construction scheme of on-site installation is to assemble on the ground and then lift as a whole. The roof components are segmented considering the weight, distribution position, tower crane performance and transportation conditions of the roof components. The installation scheme of the roof is to assemble on the ground as a whole and then lifted into place by a synchronous hydraulic hoist. According to the structural characteristics of the roof, the lifting points are arranged on the same height of the floor structure, and are evenly arranged according to the whole roof. There are sixteen lifting points. The roof adopts a single-layer two-way grid steel arch shell structure. The two-way arch shell structure is smooth in curve. The main and secondary beams of the roof are gradually bent and twisted box members. The cross section is trapezoidal. The lifting support on the four sides is divided into two types of middle near end and corner far end according to the cantilever distance. The original support structure is used as the lifting point. The upper lifting point 27 is arranged at the top of the roof. The hydraulic oil pump 22 is used for hydraulic movement to drive the upper lifting point 27 to rise. The reinforcing support 25 is connected with the steel beam 23 and the steel column 24. The far end lifting support 3 is used to hoist and pull the four corners of the roof with the lower lifting point 33. The roof is conveniently and stably stretched. The support connection of the diagonal brace 34 and the lateral support 35 improves the fixation of the lifting support. The rear pull rod 36 and the rear stiffener 37 are used for reinforcement to increase the safety performance of the device. The lifting points are conveniently processed. The lifting points should meet the requirements that the deformation and stress of the roof are within the controllable range of the relevant specifications. Then, the computer is used to control the hydraulic synchronous lifting. The computer control hydraulic synchronous lifting system is composed of steel wire strand and lifting cylinder cluster, hydraulic pump station, sensing detection, computer control and remote monitoring system and other parts to lift and install.

[0061] The above describes the application in general, but some modifications or improvements can be made on the basis of the application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the application are within the protection scope of the application.

Claims

1. A method of hoisting a two-way bending and twisting dome support, characterized by: The two-way bending and twisting dome support hoisting method comprises the following steps: Step one: construction of the basement foundation pit; Step two: steel joint frame truss construction; Step three: installation of the roof structure; The step two further comprises: (1) after the completion of the installation of the main body steel structure on both sides of the truss, forming a stable frame system, at the same time, the temporary support of the truss is installed in place and passes the inspection, the truss member hoisting is started by using the on-site tower crane; (2) before pouring the concrete on the F1 floor, the temporary support embedded part is buried; (3) the truss is hoisted in the order of lower chord, column, upper chord and diagonal brace from bottom to top, at the same time, after the installation of the chord in place, the connecting steel beam between each truss is installed, ensuring the overall stability during the installation of the truss; (4) the component positioning is measured and positioned by using the high-precision total station; (5) the hoisting is carried out in the order from west to east, after the completion of the installation of the truss chord, the floor steel beam between the adjacent structures is immediately installed, ensuring the lateral stability during the installation of the truss; (6) after the completion of the welding of the truss structure, the temporary support is removed, and then the concrete pouring on the upper floor of the truss is carried out; The step three further comprises: A1: assembly of the roof net shell and installation of the lifting support; A2: installation of the embedded rod of the roof net shell; A3: concrete construction; A4: completion acceptance; The roof component is processed and manufactured in sections, the on-site installation of the roof adopts the construction scheme of ground assembly and overall lifting, the roof adopts the single-layer two-way net grid steel arch shell structure, the two-way arch shell structure is smooth in curve, the main and secondary beams of the roof are gradually bent and twisted box components, the cross section is trapezoidal cross section, then according to the overall lifting engineering requirement, the hydraulic synchronous overall lifting technology is adopted to lift the steel structure according to the design requirement; According to the roof load transmission route, the original support structure is used as the lifting lifting point, the support structure includes a proximal end lifting support (2) and a distal end lifting support (3), the lifting support (2) includes a column top support (26), the top of the column top support (26) is provided with a cross beam (21), one end of the cross beam (21) is provided with a hydraulic oil pump (22) at the top, the bottom of the hydraulic oil pump (22) is provided with an upper lifting point (27), the bottom of the upper lifting point (27) is connected with a roof (4), the bottom of the column top support (26) is provided with a steel column (24), the side of the steel column (24) is fixedly installed with a reinforcing support (25), the top of the other end of the reinforcing support (25) is provided with a steel beam (23), one end of the steel beam (23) is arranged at the top of one side of the steel column (24), the distal end lifting support (3) includes a stand column (30), one side of the bottom of the stand column (30) is fixedly connected with a lateral support (35), the top of the stand column (30) is fixedly installed with a lifting beam (31), the bottom of the lifting beam (31) is arranged at the top of the lateral support (35), the top of one end of the lifting beam (31) is provided with a hydraulic lifting machine (32), the bottom of the hydraulic lifting machine (32) and extending to the bottom of the lifting beam (31) is provided with a lower lifting point (33), the side of the other end of the lifting beam (31) is fixedly connected with a rear pull rod (36), the bottom of the rear pull rod (36) is fixedly installed with a rear tension plate (37), the bottom of the rear tension plate (37) is provided with a beam plate frame (1), one end of the bottom of the lifting beam (31) is provided with an inclined brace (34), the lifting point should meet the roof deformation and stress within the controllable range of the relevant specification, according to the roof structure characteristics, the lifting point is arranged on the floor structure at the same height, the floor steel column and the steel beam are the main force transmission members of the roof structure, the lifting support is arranged at the column top position of the steel column, and the lifting supports are arranged uniformly according to the whole roof, and a total of sixteen lifting points are arranged; The roof (4) is composed of four groups of edge sealing beams (41), a plurality of corner main beams (42) are fixedly connected between adjacent two groups of edge sealing beams (41), a plurality of center main beams (43) composed of splicing are connected between the corner main beams (42), spliced side beams (44) are welded on the top of the corner main beams (42) and the center main beams (43), the edge sealing beams (41), the corner main beams (42), the center main beams (43) and the spliced side beams (44) form an arc-shaped dome structure as a whole, and the top of the edge sealing beam (41) is welded with an upper lifting point (45) for being fixedly connected with the lower lifting point (33).

2. The method according to claim 1, wherein: The step one further includes: S1: according to the building construction, the construction of the basement concrete structure is carried out, the underground steel column embedded part and the steel column section are installed by using a tower crane, and then the construction of the basement concrete is carried out; S2: according to the construction scheme from bottom to top, the installation of the first floor steel beam and the construction of the first floor concrete are carried out, and the installation of the steel column section of the main building above ground is carried out. S3: the truss member is segmented and processed, the length of the transported member is reduced, the steel structure member is conveniently transported, and the truss is constructed on site by adopting temporary support to assist in in-situ high assembly.

3. The method according to claim 2, wherein: After the steel column is hoisted, the anchor bolt is installed, the bottom plate is poured, and after the bottom plate concrete is cured to reach the strength, the first section of the steel column is hoisted, the steel column is positioned and adjusted, and after the steel column is installed in place, the anchor bolt is poured again.

4. The method of claim 1, wherein: Before hoisting, brown ropes are tied at both ends of the truss member as sliding ropes, after the steel wire rope is bound, it is tested on the ground twice, about 5 cm away from the ground, whether it is horizontal or skewed, and after the test is balanced, it is formally lifted.

5. The method of claim 1, wherein Before hoisting, the surface of the rod should be cleaned; the connecting plate and the friction surface that produce rust are derusted before hoisting, and the welded positioning plate is welded at the end of the rod. Before hoisting the rod, pay attention to the front and back directions and the horizontal direction of the rod, clearly mark, and ensure correct installation.

6. The method of claim 1, wherein: During hoisting, through the adjustment measures of the bed frame, the inverted chain, the steel support, the jack, etc., the preliminary positioning of the component is completed under the observation of the total station, and the component is fixed by using the temporary connecting plate, and then the next component is hoisted. The axis control of the truss rod: before hoisting, mark the center line of each rod, ensure the center line alignment with the axis on the steel column bracket when the rod is in place, and use the self-made simple beam corrector for leveling and correction. The rod correction can be assisted by the jack, hand-operated hoist, etc. Once the correction is in place, the positioning baffle is welded and fixed at each connecting node. The steel column and the upper chord of the truss adopt the conventional bolted joint, the steel column and the upper chord of the truss, the web member adopt the welded joint, and the steel beam and the truss bracket adopt the high-strength bolt connection.

7. The method of claim 1, wherein: Install the hydraulic lifting equipment on the lifting frame, after installation and inspection, start the synchronous whole lifting of the roof, use computer to control hydraulic synchronous lifting, the principle of flexible steel wire bearing, lifting cylinder cluster, computer control, hydraulic synchronous lifting, after the roof is lifted in place, install the connecting steel beam between the main structure and the embedded section, after all components are installed, the roof is lifted and unloaded, and the lifting support is removed.

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