CN108612194B - Three-section type net rack starting arch section installation method - Google Patents
Three-section type net rack starting arch section installation method Download PDFInfo
- Publication number
- CN108612194B CN108612194B CN201810474153.8A CN201810474153A CN108612194B CN 108612194 B CN108612194 B CN 108612194B CN 201810474153 A CN201810474153 A CN 201810474153A CN 108612194 B CN108612194 B CN 108612194B
- Authority
- CN
- China
- Prior art keywords
- arch
- section
- segment
- arch section
- starting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the field of grid structure engineering construction methods, in particular to a three-section type grid starting arch segment installation method which can realize safe and quick construction of a starting arch segment and effectively reduce and save cost, and comprises the following steps: a. dividing the whole arch section into three sections, and respectively assembling and molding the three sections of arch sections on the ground; b. the assembly of the arch sections at the support seat adopts a hoisting machinery matching mode, namely, the first arch section or the second arch section is hoisted to the support seat and rotatable connection is completed; c. carrying out starting arch segment folding work; d. and the third arch section is connected with the first arch section and the second arch section in the air, so that the construction of the whole starting arch section is completed. The invention can ensure that all constructors can work on the ground by optimizing the construction steps. Due to the improvement of the splicing method, a scaffold does not need to be erected in the whole process, so that the material is saved, the safety risk is reduced, the production efficiency is improved, and the construction cost is reduced. The invention is especially suitable for the construction of the starting arch section of the grid structure.
Description
Technical Field
The invention relates to the field of grid structure engineering construction methods, in particular to a three-section type grid starting arch section installation method.
Background
The grid structure is a space structure formed by connecting a plurality of rod pieces through nodes according to a certain grid form. The device has the advantages of small space stress, light weight, high rigidity, good earthquake resistance and the like; can be used as the roof of buildings such as gymnasiums, movie theaters, exhibition halls, waiting halls, stadium stand awnings, bidirectional large-column-distance workshops and the like.
The large-area stock ground of large-scale industrial and mining enterprises is closed, a three-center arc-shaped bolt ball grid structure is generally adopted in design, and the construction of the structure is generally to firstly carry out starting arch section construction and then extend and complete the whole arch grid structure on the basis of the starting arch section. Therefore, the safe and quick construction of the starting arch segment plays an important role in the installation of the whole project.
The construction method of the starting arch segment at present generally comprises the steps of erecting full framing scaffolds, enabling workers to work aloft, and sequentially splicing the framing unit cells according to the framing unit cells, wherein the full framing unit cells are similar to the bolt-sphere grid high-altitude bulk technology granted by the patent application No. 201110196872.6.
Disclosure of Invention
The invention aims to solve the technical problem of providing a three-section type net rack starting arch segment installation method which can realize safe and quick construction of a starting arch segment and effectively reduce and save cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: the three-section type net rack starting arch section installation method comprises the following steps: a. firstly, determining a grid structure unit of a starting arch segment, and dividing the whole arch segment into three segments, wherein the first arch segment and the second arch segment are rotatably connected with a left support and a right support respectively, the middle segment is a third arch segment, and the three segments are assembled and molded on the ground respectively; b. the assembly of the arch section at the support seat adopts a hoisting machinery matching mode, namely, a first arch section or a second arch section is hung on the support seat and is rotatably connected, and then the free end of the first arch section or the second arch section is hung and suspended off the ground by a crane, so that the assembly and the molding are realized; c. after the net racks of the first arch section, the second arch section and the third arch section are completely assembled, starting arch section assembling work is carried out, the first arch section and the second arch section are hoisted by a crane and respectively rotate by taking the left support and the right support as fulcrums to reach the designed height; d. and hoisting the third arch section to the air by using another crane to be connected with the first arch section and the second arch section, thereby completing the construction of the whole starting arch section.
Further, for step a, the first arch segment and the second arch segment are equal in length, the first arch segment and the second arch segment respectively occupy the length of the entire arch segment 2/5, and the third arch segment occupies the length of the entire arch segment 1/5.
Furthermore, in the splicing of the first arch section or the second arch section in the step b, each section of net rack is spliced, namely, the hanging point is moved towards the splicing direction, so that the free end of the first arch section or the second arch section is always suspended from the ground until the splicing is finished.
Further, for the step d, the third arch segment is firstly hoisted to be slightly higher than the first arch segment and the second arch segment, and then the upper chord is butted, so that the whole construction of the starting arch segment is completed.
The invention has the beneficial effects that: the invention can ensure that all constructors can work on the ground by optimizing the construction steps. Meanwhile, due to the improvement of the splicing method, a scaffold does not need to be erected in the whole process, so that the material is saved, the safety risk is reduced, the construction period is short, the speed is high, the production efficiency is improved, and the construction cost is reduced. The invention is especially suitable for the construction of the starting arch section of the grid structure.
Drawings
FIG. 1 is a schematic diagram of the splicing of step b of the present invention.
Fig. 2 is a schematic structural view of a three-segment installation of the present invention.
Labeled as: crane 1, arch segment 2, first arch segment 21, second arch segment 22, third arch segment 23, support 3.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The three-stage net rack starting arch segment installation method shown in fig. 1 and 2 comprises the following steps: a. firstly, determining a grid structure unit of a starting arch segment, and dividing the whole arch segment into three sections, wherein the first arch segment 21 and the second arch segment 22 are respectively rotatably connected with a left support 3 and a right support 3, the middle section is a third arch segment 23, and the three sections of arch segments are respectively assembled and molded on the ground; b. the assembly of the arch section at the support 3 adopts a hoisting machinery matching mode, namely, a first arch section 21 or a second arch section 22 is hung on the support 3 and is rotatably connected, and then the free end of the first arch section 21 or the second arch section 22 is hung off the ground by a crane, so that the assembly and the molding are realized; c. after the net racks of the first arch section 21, the second arch section 22 and the third arch section 23 are completely assembled, the starting arch section is folded, the first arch section 21 and the second arch section 22 are hoisted by a crane, and the first arch section 21 and the second arch section 22 rotate by taking the left support 3 and the right support 3 as supporting points respectively and are hoisted to the design height; d. and hoisting the third arch section 23 to be connected with the first arch section 21 and the second arch section 22 in the air by using another crane, thereby completing the construction of the whole starting arch section. The invention does not need to set up a scaffold, only needs a plurality of hoisting machines to be matched for construction, divides the net rack starting arch section into three sections to be pre-assembled on the ground, and folds the net rack starting arch section at high altitude to form a complete starting arch section, thereby being suitable for the construction of the starting arch section of the super-large span bolt ball net rack structure.
In order to further optimize the structural proportion among the arch sections and further obtain more ideal construction quality, the following scheme can be selected: for step a, the first arch segment 21 and the second arch segment 22 are equal in length, the first arch segment 21 and the second arch segment 22 respectively occupy the length of the entire arch segment 2/5, and the third arch segment 23 occupies the length of the entire arch segment 1/5. As shown in fig. 2, such a design not only can ensure the construction of the first arch section 21 and the second arch section 22 to the maximum extent, but also can reduce the difficulty of hoisting the third arch section 23 as much as possible, thereby improving the construction efficiency and reducing the construction difficulty.
In order to further achieve higher construction efficiency, such a scheme may be selected: in the step b of splicing the first arch section 21 or the second arch section 22, the hanging point is moved towards the splicing direction when each section of net rack is spliced, so that the free end of the first arch section 21 or the second arch section 22 is always suspended from the ground until the splicing is finished. As shown in fig. 1, in such a splicing manner, the free end can be always suspended from the ground only by the crane 1 without a scaffold, so that the splicing efficiency is realized.
To facilitate the docking operation of the last third arch segment 23, a solution can be chosen: for step d, the third arch segment 23 is firstly hoisted to be slightly higher than the first arch segment 21 and the second arch segment 22, and then the upper chords are butted, so that the whole construction of the starting arch segment is completed. As shown in fig. 2, the third arch section 23 is slightly higher than the first arch section 21 and the second arch section 22, so that an ideal position can be provided for subsequent splicing, and the splicing efficiency can be improved.
The invention can ensure that all constructors can work on the ground by optimizing the construction steps. Meanwhile, due to the improvement of the assembling method, a scaffold does not need to be erected in the whole process, so that materials are saved, safety risks are reduced, the construction period is short, the speed is high, the production efficiency is improved, the construction cost is reduced, the method is particularly suitable for the construction of the starting arch section of the grid structure, and the market popularization prospect is very wide.
Claims (2)
1. The three-section type net rack starting arch section installation method is characterized by comprising the following steps of:
a. firstly, determining a grid structure unit of a starting arch segment, and dividing the whole arch segment into three segments, wherein the first arch segment (21) and the second arch segment (22) are rotatably connected with a left support (3) and a right support (3), respectively, the middle segment is a third arch segment (23), and the three segments are assembled and molded on the ground respectively;
b. the assembly of the arch section at the support (3) adopts a hoisting machinery matching mode, namely, a first arch section (21) or a second arch section (22) is hung on the support (3) and is rotatably connected, then, the free end of the first arch section (21) or the second arch section (22) is hung off the ground by a crane, so as to be assembled and formed, wherein in the assembly of the first arch section (21) or the second arch section (22), each section of net rack is assembled, namely, a hanging point is moved towards the assembly direction, so that the free end of the first arch section (21) or the second arch section (22) is always hung off the ground until the assembly is completed;
c. after the net racks of the first arch section (21), the second arch section (22) and the third arch section (23) are completely assembled, starting arch section closing work is carried out, the first arch section (21) and the second arch section (22) are hoisted by a crane, and the first arch section and the second arch section rotate by taking the left support (3) and the right support (3) as supporting points respectively and are hoisted to the designed height;
d. and hoisting a third arch segment (23) to the air by using another crane to be connected with the first arch segment (21) and the second arch segment (22), wherein the third arch segment (23) is firstly hoisted to be slightly higher than the first arch segment (21) and the second arch segment (22), and then the upper chords are butted, so that the whole construction of the starting arch segment is completed, and the whole construction of the starting arch segment is completed.
2. The three-stage net rack starting arch segment installation method as claimed in claim 1, characterized in that: for step a, the first arch segment (21) and the second arch segment (22) are equal in length, the first arch segment (21) and the second arch segment (22) each occupy the length of the entire arch segment 2/5, and the third arch segment (23) occupies the length of the entire arch segment 1/5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474153.8A CN108612194B (en) | 2018-05-17 | 2018-05-17 | Three-section type net rack starting arch section installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474153.8A CN108612194B (en) | 2018-05-17 | 2018-05-17 | Three-section type net rack starting arch section installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108612194A CN108612194A (en) | 2018-10-02 |
| CN108612194B true CN108612194B (en) | 2020-06-30 |
Family
ID=63663718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474153.8A Active CN108612194B (en) | 2018-05-17 | 2018-05-17 | Three-section type net rack starting arch section installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612194B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707038A (en) * | 2019-02-26 | 2019-05-03 | 中国二十二冶集团有限公司 | Large area bolt-ball net frame high altitude bulk modularization installation method |
| CN109838099B (en) * | 2019-03-26 | 2021-04-23 | 华能国际电力股份有限公司上海石洞口第二电厂 | Method for mounting double-span bolt ball net frame walking frame |
| CN111364622A (en) * | 2020-04-08 | 2020-07-03 | 五冶集团上海有限公司 | Construction method of long-span arched net rack strip-shaped building |
| CN112359975B (en) * | 2020-11-05 | 2022-04-15 | 中国十九冶集团有限公司 | Installation method for preventing latticed shell from laterally moving |
| CN112962980A (en) * | 2021-02-22 | 2021-06-15 | 中国二十二冶集团有限公司 | Construction method applying tie method in large-span net frame walking frame |
| CN113982284A (en) * | 2021-10-28 | 2022-01-28 | 中铁三局集团建筑安装工程有限公司 | Installation method of large-span special-shaped steel structure toll booth |
| CN114150881A (en) * | 2021-12-21 | 2022-03-08 | 上海通用建筑工程有限公司 | Method for installing starting span of net rack |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018658A3 (en) * | 1979-05-05 | 1981-01-07 | Alfred Wangler | Linear,plane or spatial structure and hinge joint for such a structure |
| CN1188575C (en) * | 2003-05-23 | 2005-02-09 | 浙江大学 | Whole forming method for cylindrical netting support with horizontal sliding structure |
| CN102345393B (en) * | 2011-07-14 | 2014-02-12 | 中建八局第四建设有限公司 | High-altitude bulk process of bolt ball net frame |
| CN102337785B (en) * | 2011-08-19 | 2012-07-18 | 徐州中煤百甲重钢结构有限公司 | Construction process of ultra-large-span net-frame arch-shaped shed type storage silo |
| CN103993744B (en) * | 2014-04-30 | 2016-05-11 | 浙江东南网架股份有限公司 | System and installation method thereof are pulled in rising of a kind of large area rack |
-
2018
- 2018-05-17 CN CN201810474153.8A patent/CN108612194B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108612194A (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108612194B (en) | Three-section type net rack starting arch section installation method | |
| CN103075017B (en) | Super-long-span cylindrical shell lattice structure construction method | |
| CN105604334A (en) | Rapid-construction method used for overall installation of large-span steel truss | |
| CN102155096A (en) | Enormous-span steel tube house truss assembling construction method | |
| CN202324340U (en) | Combined type large steel-pipe truss | |
| CN206737379U (en) | A kind of adjustable for height scaffold | |
| CN113235948B (en) | Spatial vertical rotation construction method for steel structure roof of large-scale venue | |
| CN113463763A (en) | Construction method of super-long cantilever cable bearing grid structure | |
| CN113235946B (en) | High-altitude rotation construction method for steel cover shed of large-scale venue | |
| CN104234200A (en) | Ring-by-ring lifting mounting method for suspendome cable-bar system | |
| CN109537729A (en) | A kind of construction method suitable for single-layer bidirectional Orthogonal Cable net | |
| CN103276908A (en) | Construction method for assembling steel truss barrel-shell-structured dry coal shed | |
| CN113622576A (en) | Swivel construction method for structural space of steel cover shed roof of ultra-large stadium | |
| CN113047440B (en) | Double-layer radial beam string structure with wind resistance cable and construction method thereof | |
| CN203626105U (en) | Cable dome | |
| CN212078719U (en) | Jig frame for triangular truss pipeline construction | |
| CN208996478U (en) | It is a kind of aerial group of same diameter steel pipe column to positioning device | |
| CN209179572U (en) | A kind of stepped stage step easy to carry | |
| CN102605862B (en) | Cable-pole type foldable grid structure | |
| CN203307981U (en) | Full-tension cable bar roof structure system | |
| CN207453229U (en) | A kind of assembled architecture shell adjustable type roof | |
| CN213297070U (en) | Large-span ultrahigh-degree steel structure net rack construction work platform | |
| CN109930744A (en) | A kind of assembled string branch structural system of roof and its construction method | |
| CN209873548U (en) | Box girder end part structure convenient for pier mounting | |
| CN104453034A (en) | Inclined hidden-frame glass curtain wall connecting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |