CN116988607A - Construction method for W-shaped steel structure curved surface roof - Google Patents
Construction method for W-shaped steel structure curved surface roof Download PDFInfo
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- CN116988607A CN116988607A CN202310888348.8A CN202310888348A CN116988607A CN 116988607 A CN116988607 A CN 116988607A CN 202310888348 A CN202310888348 A CN 202310888348A CN 116988607 A CN116988607 A CN 116988607A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 140
- 239000010959 steel Substances 0.000 title claims abstract description 140
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000005192 partition Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 28
- 238000003466 welding Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 238000011900 installation process Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/20—Configuration CAD, e.g. designing by assembling or positioning modules selected from libraries of predesigned modules
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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- Geometry (AREA)
- Architecture (AREA)
- Theoretical Computer Science (AREA)
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- Structural Engineering (AREA)
- Computer Hardware Design (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Evolutionary Computation (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Computer Graphics (AREA)
- Software Systems (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction method for a W-shaped steel structure curved surface roof, which comprises the following steps: s1, preparing construction; s2, establishing a model; s3, hoisting the primary bifurcation column; s4, hoisting the secondary fork column; s5, installing the edge sealing steel beam and the inner ring partition steel beam supporting tire; s6, erecting a full-hall support frame; s7, hoisting edge-sealed steel beams; s8, hoisting the inner ring partition steel beam; s9, mounting through steel beams; s10, installing embedded steel beams; s11, mounting three-stage bifurcation columns; s12, unloading the steel structure curved surface roof; s13, checking and accepting, the invention solves the technical problem that the space for lifting the vehicle is limited when the vehicle cannot be used in the lifting construction stage of the W-shaped steel structure curved surface roof.
Description
Technical Field
The invention relates to the technical field of construction of building steel structure roofs, in particular to a construction method for a W-shaped steel structure curved surface roof.
Background
In the city construction of high-speed development, the large commercial complex steel structure roof structure has various forms, and how to efficiently complete the construction of the special-shaped steel structure roof engineering on the premise of ensuring the quality on the basis of safety is a difficult problem for each engineering constructor to think. Especially, under the condition that the ascending vehicle operation can not be adopted and the space of the automobile crane operation is limited, the mode adopted for carrying out the steel structure roof construction is a key technology for forward pushing of the engineering, and is also a key whether the engineering can perform the on-schedule performance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a construction method for a W-shaped steel structure curved surface roof, which comprises the following steps:
s1, preparation of construction: the method comprises the steps of carrying out sectional processing on the W-shaped steel structure curved surface roof, assembling on site, drawing up a lifting scheme of the W-shaped steel structure curved surface roof suitable for site construction, and determining a construction process flow of the W-shaped steel structure curved surface roof;
s2, establishing a model: building a BIM construction model, and simulating the whole process hoisting flow of the tree-shaped steel structure roof;
s3, hoisting a primary bifurcation column: lifting a first-level bifurcation column by adopting a tower crane, and lifting a support landing positioning point measurement mark in place;
s4, hoisting a secondary fork column: after the primary column is installed in place, installing a secondary column, wherein the secondary column is also hoisted by adopting a tower crane;
s5, installing the edge sealing steel beam and the inner ring partition steel beam supporting tire: the construction is carried out by adopting a main structure in-situ jig frame installation process, so that lattice columns are arranged below the roof edge sealing steel beams to serve as temporary support jig frames according to the structural form of the steel structure roof and the edge sealing steel beam sections;
s6, erecting a full-hall support frame: setting up by adopting a full scaffold bulk method;
s7, hoisting edge-sealed steel beams: erecting a gantry bracket in advance, hoisting the edge-sealed steel beams in a segmented manner, butting, measuring a plurality of coordinates of the edge-sealed steel beams by using a total station and a level meter, and performing temporary welding and fixing by adopting a horse plate and the gantry bracket after the line shape is controlled;
s8, hoisting the inner ring partition steel beam: erecting a gantry bracket in advance, hoisting the inner ring partition steel beam in a segmented manner, butting, measuring a plurality of coordinates of the inner ring partition steel beam by using a total station and a level meter, and performing temporary welding fixation by adopting a horse plate and the gantry bracket after the line shape is controlled;
s9, mounting through steel beams: the method comprises the steps of vertically processing and prefabricating a whole through steel beam, adopting a through hoisting method, directly welding and fixing two ends of the through steel beam with edge sealing steel beams or inner ring partition steel beams after the through steel beam is in place, measuring a plurality of coordinates of a grid by using a total station and a level meter, and temporarily welding and fixing a horse plate and a gantry bracket after the line shape is controlled;
s10, mounting embedded steel beams: welding and fixing the self-made hoisting device and the drum-shaped node on the through steel beam, hoisting the embedded steel beam by using the self-made hoisting device, installing the embedded steel beam, measuring a plurality of coordinates of the drum-shaped node by using a total station and a level meter, and welding and fixing the controlled line type with the drum-shaped node;
s11, mounting a three-stage bifurcation column 4: before the three-stage bifurcation column is installed, a compound ruler is formed, and a tower crane is adopted for hoisting;
s12, unloading the steel structure curved surface roof: unloading is completed by directly cutting the crescent plate or the tube support top end;
s13, checking and accepting.
Preferably, the number of the first-level bifurcation columns is 12, and the first-level bifurcation columns are fixed by welding and are stabilized by using a guy cable after being lifted in place.
Preferably, the number of the secondary fork columns is 36, the secondary fork columns are fixed by welding and are fixed by using a guy cable after being lifted in place, and the bottom of the jig frame is located on the top plate of the basement or the top plate of the roof.
Preferably, in step S5, the construction is performed by adopting the "main structure in-situ jig frame installation process", and lattice columns are arranged below the edge sealing steel beams and the inner ring partition steel beams 10 as temporary supporting jigs, and jacks and positioning correction devices are arranged at the tops of the jigs.
Preferably, the full-hall support frame is supported by adopting phi 48 multiplied by 3.2 socket-and-spigot type disc buckle type steel pipes, vertical rods are longitudinally and longitudinally spaced by 1.2m multiplied by 1.2m, the step distance is 1.5m, the distance between a sweeping rod and a foundation surface is less than or equal to 550mm, the plate bottom support connection mode is U-shaped jacking, and an adjustable base or a skid is arranged at the bottom of each vertical rod.
Preferably, in step S11, the number of the three-stage bifurcation columns is 108.
The beneficial effects of the invention are as follows: the technical problem that the space is limited when the ascending vehicle operation and the automobile crane operation cannot be adopted in the hoisting construction stage of the W-shaped steel structure curved surface roof is solved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a steel structure roof construction flow diagram;
FIG. 2 is a schematic view of a steel structural bifurcation column;
FIG. 3 is a schematic view of a bifurcation post node;
FIG. 4 is a schematic view of a steel structural drum node;
FIG. 5 is a schematic plan view of a curved roof of a W-type steel structure.
In the figure: 1. a first order bifurcation column; 3. a secondary fork column; 4. three-stage bifurcation columns; 6. embedding and repairing the steel girder; 7. penetrating the steel beam; 8. drum-type nodes; 9. edge sealing steel beams; 10. the inner ring is partitioned into steel beams.
Detailed Description
The technical scheme of the invention is described in detail below through the drawings, but the protection scope of the invention is not limited to the embodiments.
Referring to fig. 1 to 5, the construction method for the W-shaped steel structure curved surface roof of the present invention specifically includes the following steps:
the first step: and (3) preparation of construction:
1. the lifting scheme of the W-shaped steel structure curved surface roof is established, and the organization structure and personnel division are clear.
2. According to the deepening of the original design drawing, the W-shaped steel structure curved surface roof is subjected to sectional processing and field assembly aiming at the problems of various structural member forms and complex node forms of the W-shaped steel structure curved surface roof.
3. And (3) carefully analyzing according to the construction drawing and the deepening drawing, understanding the design intention and the depth, and planning a W-shaped steel structure curved surface roof hoisting scheme suitable for field construction.
4. And combining the actual condition of the site, the operability of the scheme and the quality after molding to finally determine the construction process flow of the W-shaped steel structure curved surface roof.
5. All workers are subjected to technical engagement and pre-post technical training engagement.
And a second step of: and (3) simulating a construction process:
and building a BIM construction model, simulating the whole process hoisting flow of the tree-shaped steel structure roof, and ensuring the safe and orderly hoisting whole process.
And a third step of: hoisting the primary bifurcation column 1:
1. the number of the first-stage bifurcation columns 1 is 12.
2. And (5) supporting a landing positioning point measurement mark.
3. Hoisting in place, and controlling the coordinates and elevation of the top of each bifurcation by the process.
4. Welded fastening and adopting a guy cable for stability.
Fourth step: and (3) hoisting the secondary fork column 3:
1. the number of the two-stage fork columns 3 is 36.
2. Hoisting in place, and controlling the coordinates and elevation of the top of each bifurcation by the process.
3. Welded fastening and adopting a guy cable for stability.
Fifth step: the edge sealing steel beam 9 and the inner ring partition steel beam 10 support the tire for installation:
1. the construction is performed by adopting a main structure in-situ jig frame installation process, and lattice columns are arranged below the edge sealing steel beams and the inner ring partition steel beams 10 to serve as temporary support jigs according to the structural form of the steel structure roof and the edge sealing steel beam sections.
2. The bottom of the jig frame is located on a top plate of a basement or a top plate of a roof, and is arranged on a foundation bottom plate of a concrete structure, a bearing platform or a concrete column head as much as possible, the falling point of the bottom of the jig frame has no holding force structure, and a roadbed box is adopted as a column bottom holding force structure. The top of the jig frame is provided with a jack and a positioning correction device.
3. The temporary support system of the edge sealing steel beam maintains stability measures: the edge sealing steel beam is temporarily supported by using the lattice column, the cross section of the lattice column is large, and the size of the base is enlarged. After the full scaffold is erected, the horizontal rod and the disc buckle can be used for being connected with the full scaffold, so that the stability is improved.
Sixth step: the full-hall support frame is erected:
the steel adopts a full-hall scaffold bulk method, the used supports adopt phi 48 multiplied by 3.2 socket-joint type disc buckle type steel pipes, vertical rods are longitudinally and longitudinally spaced by 1.2m multiplied by 1.2m, the step distance is 1.5m, the distance between a sweeping rod and a foundation surface is not more than 550mm, the plate bottom supports are connected in a U-shaped jacking manner, and adjustable bases or skids are arranged at the bottoms of the vertical rods.
Seventh step: hoisting the outer ring edge sealing steel beam 9:
1. according to the working condition of the tower crane and the combination of the distortion modeling of the steel beam, the steel beam butt joint position is reasonably divided according to the principle of convenient transportation and on-site butt joint, and a gantry bracket is preset according to the coordinate point and the elevation of the butt joint position.
2. The steel beam is hoisted in sections and is butted, and the space positioning is needed to be carried out for the installation and the balance of the bent steel beam, so that three hoisting points are arranged, three slings are arranged during hoisting, the three hoisting points are balanced, and the two chain blocks with the chain blocks are finely adjusted as shown in the detail.
3. And measuring a plurality of coordinates of the edge sealing steel beam 9 by using a total station and a level meter, and performing temporary welding and fixing by adopting a horse plate and a gantry bracket after the line shape is controlled.
Eighth step: hoisting the inner ring partition steel girder:
1. according to the working condition of the tower crane and the combination of the distortion modeling of the steel beam, the steel beam butt joint position is reasonably divided according to the principle of convenient transportation and on-site butt joint, and a gantry bracket is preset according to the coordinate point and the elevation of the butt joint position.
2. And (5) hoisting the steel beam in sections and butting.
3. And measuring a plurality of coordinates of the inner ring partition steel beam by using a total station and a level gauge, and performing temporary welding fixation by adopting a horse plate and a gantry bracket after the line type is controlled.
Ninth step: and (3) mounting through steel beam 7:
1. the whole steel beam is vertically prefabricated in a processing mode, a through hoisting method is adopted, and two ends of the steel beam are directly welded and fixed with the edge sealing steel beam 9 or the inner ring partition steel beam after the steel beam is in place.
2. The total station and the level meter are utilized to measure a plurality of coordinates of the grid, after the line shape is controlled, a horse plate and a gantry bracket are adopted to carry out temporary welding fixation, when the steel beam 7 is penetrated and installed, the construction of the through steel beam 7 utilizes a full scaffold to set a steel pipe temporary support or a door type temporary support, and the temporary support system plays an important role in the process of installing and uninstalling a steel structure, and the design of the temporary support system follows the following principles: the stress and stability requirements in the process of installing and uninstalling the steel structure are met; the node installation position, the installation adjustment space and the adjustment method are considered in the design of the temporary support system; when the tire is constructed, according to elevation, position and concrete structure form of each node, the standard section and the non-standard section are considered in combination.
Tenth step: and (3) mounting embedded steel beams 6:
and (3) carrying out welding fixation on the self-made hoisting device and the drum-shaped node 8 on the through steel beam 7, and after the self-made hoisting device is installed in place and accepted, hoisting the embedded steel beam 6 by using the self-made hoisting device, and installing the embedded steel beam 6.
The construction sequence of the embedded steel beam is welded and fixed according to the construction sequence of the through steel beam 7, and the welding forming quality of the nodes is controlled.
3. And measuring a plurality of coordinates of the drum-shaped node 8 by using a total station and a level meter, and performing welding fixation with the drum-shaped node after controlling the line type.
Eleventh step: three-stage bifurcation column 4 is installed:
1. the total number of the three-stage bifurcation columns 4 is 108.
2. Before the three-stage bifurcation post 4 is installed, a compound rule is formed, the three-stage bifurcation post is ensured, the factory processing and manufacturing size is accurate, and the problem that the installation cannot be performed due to the error size is avoided.
Twelfth step: unloading a steel structure roof:
1. unloading principle: the unloading is the process of converting the structure from the supporting stress state to the free stress state, namely ensuring the whole stress safety of the existing temporary steel structure supporting system and smoothly transitioning the main structure from the construction installation state to the design state. The temporary support unloading is realized according to the principle that the stress and deformation of the structural member are coordinated and balanced in the unloading process, the change process is mild, the structure is circularly and slightly lowered for a plurality of times, and the on-site construction operation, namely 'partition, segmentation, equal quantity, balance and slowness', is convenient, and the principle that the final deformation of the structure is unloaded at the maximum position is followed.
2. Unloading part and method: conventional steel structure support unloading methods have limitations in that unloading is accomplished by directly cutting the crescent or tube support tip.
3. The Y-shaped steel columns of the W-shaped curved surface steel roof are uniformly supported, but the principle that the structure is firstly unloaded at the position with the maximum final deformation is followed.
Thirteenth step: and (5) acceptance checking:
after the installation is finished, the organization detection unit detects the welding line, after the detection is qualified, the construction unit organizes related personnel to carry out self-checking, and after the self-checking is qualified, a written acceptance application is submitted to the supervision unit.
As above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The construction method for the W-shaped steel structure curved surface roof is characterized by comprising the following steps of:
s1, preparation of construction: the method comprises the steps of carrying out sectional processing on the W-shaped steel structure curved surface roof, assembling on site, drawing up a lifting scheme of the W-shaped steel structure curved surface roof suitable for site construction, and determining a construction process flow of the W-shaped steel structure curved surface roof;
s2, establishing a model: building a BIM construction model, and simulating the whole process hoisting flow of the tree-shaped steel structure roof;
s3, hoisting a primary bifurcation column: lifting a first-level bifurcation column by adopting a tower crane, and lifting a support landing positioning point measurement mark in place;
s4, hoisting a secondary fork column: after the primary column is installed in place, installing a secondary column, wherein the secondary column is also hoisted by adopting a tower crane;
s5, installing the edge sealing steel beam and the inner ring partition steel beam supporting tire: the construction is carried out by adopting a main structure in-situ jig frame installation process, so that lattice columns are arranged below the roof edge sealing steel beams to serve as temporary support jig frames according to the structural form of the steel structure roof and the edge sealing steel beam sections;
s6, erecting a full-hall support frame: setting up by adopting a full scaffold bulk method;
s7, hoisting edge-sealed steel beams: erecting a gantry bracket in advance, hoisting the edge-sealed steel beams in a segmented manner, butting, measuring a plurality of coordinates of the edge-sealed steel beams by using a total station and a level meter, and performing temporary welding and fixing by adopting a horse plate and the gantry bracket after the line shape is controlled;
s8, hoisting the inner ring partition steel beam: erecting a gantry bracket in advance, hoisting the inner ring partition steel beam in a segmented manner, butting, measuring a plurality of coordinates of the inner ring partition steel beam by using a total station and a level meter, and performing temporary welding fixation by adopting a horse plate and the gantry bracket after the line shape is controlled;
s9, mounting through steel beams: the method comprises the steps of vertically processing and prefabricating a whole through steel beam, adopting a through hoisting method, directly welding and fixing two ends of the through steel beam with edge sealing steel beams or inner ring partition steel beams after the through steel beam is in place, measuring a plurality of coordinates of a grid by using a total station and a level meter, and temporarily welding and fixing a horse plate and a gantry bracket after the line shape is controlled;
s10, mounting embedded steel beams: welding and fixing the self-made hoisting device and the drum-shaped node on the through steel beam, hoisting the embedded steel beam by using the self-made hoisting device, installing the embedded steel beam, measuring a plurality of coordinates of the drum-shaped node by using a total station and a level meter, and welding and fixing the controlled line type with the drum-shaped node;
s11, three-stage bifurcation column installation: before the three-stage bifurcation column is installed, a compound ruler is formed, and a tower crane is adopted for hoisting;
s12, unloading the steel structure curved surface roof: unloading is completed by directly cutting the crescent plate or the tube support top end;
s13, checking and accepting.
2. The construction method for the W-shaped steel structure curved surface roof according to claim 1, wherein the construction method comprises the following steps: in the step S3, the number of the first-level bifurcation columns is 12, and the first-level bifurcation columns are fixed by welding and are stabilized by using a guy cable after being lifted in place.
3. The construction method for the W-shaped steel structure curved surface roof according to claim 1, wherein the construction method comprises the following steps: in the step S4, the number of the two-stage fork columns is 36, the two-stage fork columns are fixed by welding after being lifted in place and are stabilized by using a guy cable, and the bottom of the jig frame is located on the top plate of the basement or the top plate of the roof.
4. The construction method for the W-shaped steel structure curved surface roof according to claim 1, wherein the construction method comprises the following steps: in step S5, construction is performed by adopting a main structure in-situ jig frame installation process, lattice columns are arranged below the edge sealing steel beams and the inner ring partition steel beams 10 to serve as temporary supporting jig frames, and jacks and positioning correction devices are arranged at the tops of the jig frames.
5. The construction method for the W-shaped steel structure curved surface roof according to claim 1, wherein the construction method comprises the following steps: in the step S6, the full-hall support frame is supported by adopting phi 48 multiplied by 3.2 socket-type disc buckle type steel pipes, vertical rod longitudinal and transverse distances are 1.2m multiplied by 1.2m, step distances are 1.5m, the distance between a sweeping rod and a foundation surface is less than or equal to 550mm, the plate bottom support connection mode is U-shaped jacking, and an adjustable base or a skid is arranged at the bottom of the vertical rod.
6. The construction method for the W-shaped steel structure curved surface roof according to claim 1, wherein the construction method comprises the following steps: in step S11, the number of the three-stage bifurcation columns is 108.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310888348.8A CN116988607A (en) | 2023-07-19 | 2023-07-19 | Construction method for W-shaped steel structure curved surface roof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310888348.8A CN116988607A (en) | 2023-07-19 | 2023-07-19 | Construction method for W-shaped steel structure curved surface roof |
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