CN117536335B - BIM-based starry sky garden steel structure hinge installation method - Google Patents
BIM-based starry sky garden steel structure hinge installation method Download PDFInfo
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- CN117536335B CN117536335B CN202311759337.6A CN202311759337A CN117536335B CN 117536335 B CN117536335 B CN 117536335B CN 202311759337 A CN202311759337 A CN 202311759337A CN 117536335 B CN117536335 B CN 117536335B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 238000009434 installation Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002407 reforming Methods 0.000 claims abstract 2
- 238000003466 welding Methods 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007306 turnover Effects 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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/344—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
- E04B1/3441—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts with articulated bar-shaped elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B1/3533—Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by the raising of hingedly-connected building elements, e.g. arches, portal frames
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B2001/5868—Hinged connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a BIM-based starry sky garden steel structure hinge installation method, which comprises the steps of firstly reforming a steel column base; the hinged joints of the column feet are reinforced by the steel plates, so that the steel columns are firmly fixed and serve as supporting points of other beams, the main steel beams are temporarily supported by a shaping tower-type jig frame supporting system, the situation that the full-hall frame supporting is built is avoided, the construction efficiency is improved, and the cost is saved; and after the final main structure is completely installed, the steel plate is removed, all the structures are formed into a whole, and the steel column can slightly shake within an allowable range after the steel plate is removed, so that the load deformation generated by the steel structure is effectively released, the load of the original structure is effectively shared, and the safety performance of the original structure is ensured.
Description
Technical Field
The invention belongs to the field of building installation, and particularly relates to a star garden steel structure hinge installation method based on BIM.
Background
When the current starry sky garden steel structure is installed, as most of the structures are located in multiple layers at high altitudes, the traditional installation method is to set up a hall-full scaffold as a temporary support, and the structures are installed layer by layer from bottom to top. In the construction process, the construction time of the full scaffold is longer, the measure cost is higher, and the safety risk caused by higher scaffold exists.
On the other hand, the steel structure has residual rigidity and insufficient toughness after the installation is finished, which is not beneficial to the long-time use of the steel structure.
In view of the above drawbacks, there is a need for improvements.
Disclosure of Invention
In order to solve the problems, the invention discloses a BIM-based star garden steel structure hinge installation method, wherein a hinge design is adopted at a column base, temporary fixing measures in the hinge node installation process are adopted, and load deformation generated by a steel structure can be effectively released, so that the load of an original structure can be effectively shared; the main steel beam supports are supported by the shaping jig frame, the full-hall frame support is avoided, the efficiency is effectively saved, the high turnover of materials is realized, and the investment of the materials is reduced.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A BIM-based starry sky garden steel structure hinge installation method comprises the following steps:
(1) Modifying a steel column base;
(2) Installing steel columns on each floor, wherein the steel columns with the height exceeding 5m are installed in sections;
(3) After the steel column is hoisted, welding and installing the box-type ring beams among the columns;
(4) Installing a jig frame support frame; welding the main steel beam on the ground, hoisting the main steel beam, supporting the main steel beam by a jig frame support frame, welding the main steel beam in the air, installing a secondary main beam between the transverse steel columns with the heights exceeding 5m, and welding after correction;
(5) Simultaneously hoisting all secondary beams, placing the secondary beams on a jig frame support frame, lowering the jig frame support frame after welding all beams and columns, and unloading by using a jack;
(6) After the roof structure is installed, installing a steel truss at the upper part of the roof;
(7) And (5) restoring the steel column base to the original state after the main body structure is completely installed.
In addition, the step (1) is to weld the steel plate at the periphery of the column base with the steel bars in the concrete for temporary reinforcement, and the step (7) is to open the reinforced steel plate after the whole installation of the main body structure is completed.
As a supplement of the invention, 2 cable ropes with the diameter of 12mm are pulled in the rotation direction when the steel column is hinged in the step (2) so as to keep stable.
In addition, in the step (4), the supporting frame of the jig frame is fixed by using a chemical anchor bolt, and 4 cable ropes are pulled on the upper part of the supporting frame to keep the supporting frame stable.
In addition, the unloading in the step (5) is divided into three synchronous unloading steps, wherein the first unloading is performed by 20%, the second unloading is performed by 30%, a level gauge is used for checking whether the main steel beam is downbent after the second unloading, and if the main steel beam is free from downwarping deformation or within the allowable range of design specifications, the final direct unloading is finished.
In addition to the invention, the steel truss at the upper part of the roof in the step (7) is installed, truss columns are installed firstly, then truss beams are installed, the truss beams between every two truss columns are installed after the installation is completed, the structure is kept stable,
As a supplement of the invention, when the steel truss is installed in the step (6), a person installs the steel truss in a mode of using a steel ladder stand and a falling protector, and life lines are all made on the truss girder through length.
In addition, after the main body structure is completely installed in the step (7), displacement probes are installed on the ring beam and the secondary beam, and the displacement probes are connected with an alarm device.
The beneficial effects of the invention are as follows:
1. the BIM technology is adopted to deepen the design of the starry sky garden steel structure, so that the installation is convenient, the process is simplified, the cost of the support frame is low, and the support frame can be reused.
2. The column angle adopts the design of articulated node, makes the load deformation that the steel construction produced effectively release, effectively shares former structure load, guarantees former structure security performance, adopts temporary fixation measure in the articulated node installation in-process of installation, guarantees installation structural security.
3. The main steel beam supports the adoption of the shaping tower-type jig frame supporting system, the situation that the hall frame is full of support is avoided, the construction efficiency is improved, and the cost is effectively saved.
Drawings
Fig. 1 is a schematic view of the main structure after the entire installation.
Fig. 2 is a schematic view of a reinforced steel plate around the column shoe.
Fig. 3 is a fixed view of the steel column when installed.
Fig. 4 is a schematic diagram at the time of step (4).
Fig. 5 is a schematic diagram at the time of step (5).
Detailed Description
The present invention is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the invention and not limiting the scope of the invention.
Taking a certain building as an example: the main structure elevation of the starry sky garden steel structure is as follows: 33.450m, a single-layer roof structure. The number of the steel columns is 15, the cross section forms are a box shape and a welded circular tube, the maximum cross section size of the box-shaped column is 900 multiplied by 400 multiplied by 36mm, and the material is Q355B; the section size of the welding circular pipe column is as follows: phi 800x36mm, and the material is Q355B. The steel column is connected with the foundation pile cap through the pre-buried steel plate, and the column foot is articulated form. The section of the steel beam is divided into H type and box type, and the material is Q355B. The maximum cross-sectional dimension of the H-shaped steel beam is H1200 multiplied by 400 multiplied by 20 multiplied by 30mm. The maximum cross section of the box girder is 600 multiplied by 900 multiplied by 30mm. Wherein, part of the structures are arranged in six floors, and the others are distributed in three floors and five floors.
The method for hinging and installing the starry sky garden steel structure comprises the following steps:
The first step: and installing an inner ring steel column and a ring beam.
The tower cranes are used for hoisting, the steel columns are firstly installed, and because the column feet are designed to be hinged joints, the column feet are firstly temporarily reinforced by steel plates (the reinforced steel plates are required to be opened after the whole main structure is installed), as shown in fig. 2, 2 steel wire ropes with the diameter of 12mm are pulled in the rotation direction when the steel columns are hinged to be used as cable ropes to stabilize the steel columns; as shown in fig. 3.
For distinction, steel columns with a height of more than 5m are called long steel columns, and in the first step of installation, steel column feet are temporarily reinforced with steel plates.
And a second step of: the steel columns are arranged on each floor, the long steel column is respectively arranged on the upper section and the lower section, the lower section steel column is firstly arranged,
And a third step of: and (5) installing the inter-column box-type ring beam after the steel column is hoisted.
Fourth step: the jig frame support frame is installed in place by using a tower crane, as shown in fig. 4, the column feet of the support frame are fixed by using chemical anchor bolts, and 4 cable ropes are pulled on the upper part to keep the support frame stable.
Fifth step: several main steel beams connected with the long steel columns are welded on the ground. The support frame supports the main steel beam; after the main girder is lifted, the main girder is welded in the air, then the secondary girder connected with the main girder is connected, the whole structure is kept stable, and after the main girder and the secondary girder are installed, the upper section steel column of the long steel column is lifted in place and connected with the main girder, and correction and welding are carried out;
Sixth step: and (3) installing the main girder and the secondary girders, welding all the secondary girders, unloading the support frame after the welding of the main girder and the steel column is finished, unloading by using a 50t jack, unloading three times, directing by a special person, synchronously unloading by using 3 supporting points, unloading 20% for the first time, unloading 30% for the second time, and checking whether the main girder is downwarped or not by using a leveling instrument after the second time of unloading, wherein if no downwarping deformation exists or the main girder is within the allowable range of design specifications, the final direct unloading is finished.
And (5) moving the support frame, and circulating the steps until all the beams and columns are installed.
Seventh step: after the roof structure is installed, installing a steel truss at the upper part of the roof, and installing the steel truss by adopting a tower crane. Firstly installing truss columns, then installing truss girders, installing every two truss columns, immediately installing the truss girders between every two truss columns, keeping the structure stable, and installing by using a form of a steel ladder and a falling protector when installing the steel truss, wherein all the truss girders are long and life lines are formed. And fully welding all welding seams after all the welding seams are installed.
After the main body structure is completely installed, the steel plate is removed, and the steel column base is restored to the original state.
The invention adopts BIM technology to deepen the design of the starry sky garden steel structure, and uses revit software to design the installation method by referring to the BIM three-dimensional model family of the invention. The innovation points are as follows: the column base adopts the articulated node design, just begins the articulated node of reinforcement column base, lets the steel column firm fixed and as the back spot of other roof beams, waits until the whole steel sheet of demolishing after accomplishing of installing of final major structure, and all structures have formed a whole this moment, demolish the steel column and also can slightly rock in the allowed range after the steel sheet, make the load deformation that the steel structure produced obtain effectively release, effectively share former structure load, guarantee former structure security performance.
It should be noted that the foregoing merely illustrates the technical idea of the present invention and is not intended to limit the scope of the present invention, and that a person skilled in the art may make several improvements and modifications without departing from the principles of the present invention, which fall within the scope of the claims of the present invention.
Claims (7)
1. A star garden steel structure hinge installation method based on BIM is characterized in that: the method comprises the following steps:
(1) And (3) reforming a steel column base: welding the outer periphery of the column base with a steel plate and reinforcing steel bars in concrete for temporary reinforcement, and opening the reinforced steel plate after the whole installation of the main body structure in the step (7) is completed;
(2) Installing steel columns on each floor, wherein the steel columns with the height exceeding 5m are installed in sections;
(3) After the steel column is hoisted, welding and installing the box-type ring beams among the columns;
(4) Installing a jig frame support frame; welding the main steel beam on the ground, hoisting the main steel beam, supporting the main steel beam by a jig frame support frame, welding the main steel beam in the air, installing a secondary main beam between the transverse steel columns with the heights exceeding 5m, and welding after correction;
(5) Simultaneously hoisting all secondary beams, placing the secondary beams on a jig frame support frame, lowering the jig frame support frame after welding all beams and columns, and unloading by using a jack;
(6) After the roof structure is installed, installing a steel truss at the upper part of the roof;
(7) And (5) restoring the steel column base to the original state after the main body structure is completely installed.
2. The BIM-based starry sky garden steel structure hinge mounting method of claim 1, wherein: and (2) 2 phi 12mm cable ropes are pulled in the rotation direction when the steel columns are hinged, so that stability is maintained.
3. The BIM-based starry sky garden steel structure hinge mounting method of claim 1, wherein: and (4) fixing the jig frame support frame by using a chemical anchor bolt, and pulling 4 cable ropes on the upper part to keep the support frame stable.
4. The BIM-based starry sky garden steel structure hinge mounting method of claim 1, wherein: and (5) unloading is divided into three synchronous unloading steps, wherein the first unloading step is 20 percent, the second unloading step is 30 percent, and after the second unloading step, a level gauge is used for checking whether the main steel beam is downbent or not, and if the main steel beam is not downbent or is within the allowable range of design specifications, the final direct unloading step is finished.
5. The BIM-based starry sky garden steel structure hinge mounting method of claim 1, wherein: and (7) installing the steel truss at the upper part of the roof, firstly installing truss columns, then installing truss beams, and installing the truss beams between every two truss columns after the installation is completed, so that the structure is kept stable.
6. The BIM-based starry sky garden steel structure hinge mounting method of claim 1, wherein: and (6) when the steel truss is installed, a person installs the steel truss in a mode of using a steel ladder and a falling protector, and life lines are all made on the truss girder in a through length mode.
7. The BIM-based starry sky garden steel structure hinge mounting method of claim 1, wherein: and (7) installing displacement probes on the ring beam and the secondary beam after the main body structure is completely installed, wherein the displacement probes are connected with an alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311759337.6A CN117536335B (en) | 2023-12-20 | 2023-12-20 | BIM-based starry sky garden steel structure hinge installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311759337.6A CN117536335B (en) | 2023-12-20 | 2023-12-20 | BIM-based starry sky garden steel structure hinge installation method |
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| CN117536335A CN117536335A (en) | 2024-02-09 |
| CN117536335B true CN117536335B (en) | 2024-08-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306670A (en) * | 2018-05-29 | 2019-10-08 | 中国建筑第二工程局有限公司 | Construction method of super-long primary and secondary truss and annular truss dome steel structure |
| CN114991376A (en) * | 2022-07-27 | 2022-09-02 | 中国建筑第二工程局有限公司 | Installation structure of corridor-containing comprehensive hall based on BIM technology and construction method thereof |
| CN117248634A (en) * | 2023-09-27 | 2023-12-19 | 上海市机械施工集团有限公司 | Construction method for steel column foot joint |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195256B (en) * | 2013-04-02 | 2015-04-29 | 广东省建筑工程集团有限公司 | Hanging column type steel structure jig frame construction method |
| CN105804401B (en) * | 2016-05-16 | 2018-09-18 | 中国建筑第二工程局有限公司 | Construction steel jig frame and method for constructing daylighting roof steel structure by using same |
| KR20190115816A (en) * | 2018-04-04 | 2019-10-14 | 고인석 | greenhouse and construction method using standardized block |
| CN110321622A (en) * | 2019-06-27 | 2019-10-11 | 中建三局第一建设工程有限责任公司 | A kind of cantilevered structure has support overhanging propelling construction method |
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- 2023-12-20 CN CN202311759337.6A patent/CN117536335B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306670A (en) * | 2018-05-29 | 2019-10-08 | 中国建筑第二工程局有限公司 | Construction method of super-long primary and secondary truss and annular truss dome steel structure |
| CN114991376A (en) * | 2022-07-27 | 2022-09-02 | 中国建筑第二工程局有限公司 | Installation structure of corridor-containing comprehensive hall based on BIM technology and construction method thereof |
| CN117248634A (en) * | 2023-09-27 | 2023-12-19 | 上海市机械施工集团有限公司 | Construction method for steel column foot joint |
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