CN112411758A - Three-section one-line quick installation method for truss string structure of large-span pipe - Google Patents
Three-section one-line quick installation method for truss string structure of large-span pipe Download PDFInfo
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- CN112411758A CN112411758A CN202011168205.2A CN202011168205A CN112411758A CN 112411758 A CN112411758 A CN 112411758A CN 202011168205 A CN202011168205 A CN 202011168205A CN 112411758 A CN112411758 A CN 112411758A
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- pipe truss
- truss
- pipe
- stay cable
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B1/3205—Structures with a longitudinal horizontal axis, e.g. cylindrical or prismatic structures
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B1/3522—Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by raising a structure and then adding structural elements under it
- E04B1/3527—Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by raising a structure and then adding structural elements under it the structure being a roof
-
- 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
- E04B7/14—Suspended roofs
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3217—Auxiliary supporting devices used during erection of the arched structures
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3229—Arched structures; Vaulted structures; Folded structures constructed using a boom
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- 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 a three-section one-line quick installation method for a long-span pipe truss string structure, which belongs to the technical field of installation of the long-span pipe truss string structure, and sequentially comprises the following steps: s1, splicing a pipe truss on the ground in a sectional combination mode; s2, mounting operation of a prestressed stay cable and a plurality of stay cable support rods is carried out on the ground operation platform, the prestressed stay cable is connected with the lower ends of all the stay cable support rods, and the prestressed stay cable is unfolded on the ground operation platform and is mounted; and S3, lifting the stay cable stay bar and the prestressed stay cable together to a preset position along with the pipe truss by using a lifting machine, and supporting the pipe truss by using a plurality of auxiliary supporting frames. Reduce high altitude construction, reduce the installation degree of difficulty of cable vaulting pole and prestressing force cable, raise the efficiency and security.
Description
Technical Field
The invention relates to the technical field of installation of a large-span pipe truss string structure, in particular to an installation method of the large-span pipe truss string structure.
Background
The large-span pipe truss string structure has the characteristics of large span, high height and the like, and the steel structure in the form is usually provided with prestressed inhaul cables. In the existing installation process, generally, according to specific conditions such as the span of a pipe truss structure, actual conditions of a construction site and the like, a pipe truss is divided into a plurality of small sections in advance, assembly and hoisting are completed according to a certain sequence, and after the whole pipe truss structure is folded, a stay bar and a prestressed stay cable are installed at high altitude. In the actual construction process, the method for installing the stay bars and the prestressed stay cables can not avoid high-altitude operation in the implementation of engineering, so that the installation work is difficult to implement and low in efficiency, and meanwhile, the insecurity is increased.
Disclosure of Invention
The invention aims to provide a three-section one-line quick installation method for a truss string structure of a long-span pipe truss, which reduces high-altitude operation, reduces the installation difficulty of stay ropes and stay ropes, and improves the efficiency and the safety.
The purpose of the invention is realized as follows: a three-section one-line quick installation method for a truss string structure of a large-span pipe sequentially comprises the following steps:
s1, splicing a pipe truss on the ground in a sectional combination mode;
s2, mounting operation of a prestressed stay cable and a plurality of stay cable support rods is carried out on the ground operation platform, the prestressed stay cable is connected with the lower ends of all the stay cable support rods, and the prestressed stay cable is unfolded on the ground operation platform and is mounted;
and S3, lifting the stay cable stay bar and the prestressed stay cable together to a preset position along with the pipe truss by using a lifting machine, and supporting the pipe truss by using a plurality of auxiliary supporting frames.
Further, in the section combination manner described in step S1, the pipe truss is divided into a first small section of pipe truss, a second small section of pipe truss, and a third small section of pipe truss, each of which is prefabricated independently, and the three are provided with members connected to the upper ends of the stay cables.
Further, in the step S1, a tool is used to combine the prefabricated pipe truss small segment one, the pipe truss small segment two, and the pipe truss small segment three into one pipe truss in a welding connection manner.
Further, in step S3, the first small pipe truss section, the second small pipe truss section, and the third small pipe truss section are all supported by at least one auxiliary support frame.
Further, in step S3, the plurality of auxiliary support frames are divided into a front group and a rear group to support the front and rear sides of the pipe truss, respectively, and the ground operation platform is disposed on the ground between the two groups of auxiliary support frames.
Further, in the step S1, the whole pipe truss is of an upward arched arc structure, the second small pipe truss section is arranged in the middle, and the first small pipe truss section and the third small pipe truss section are respectively butted to the left end and the right end of the second small pipe truss section.
Furthermore, an auxiliary support frame of the second small section of the support pipe truss is set to be a portal frame structure.
The invention has the beneficial effects that: through the mode of recombining the pipe truss in sections, the installation work of the stay cable stay bar and the prestressed stay cable can be completed on a ground operation platform or even on the ground, the on-site construction difficulty is effectively reduced, the working efficiency and the construction quality are improved, and the safety of construction operation is improved.
Drawings
Fig. 1 is an assembly view of the present invention.
Fig. 2 is a side schematic view of the present invention.
In the figure, 1 prestressed stay cable, 2 stay cable stay rods, 3 pipe truss small segments I, 4 pipe truss small segments II, 5 pipe truss small segments III, 6 ground operation platforms and 7 auxiliary supporting frames.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1-2, a three-section one-line quick installation method for a long-span pipe truss string structure sequentially comprises the following steps:
s1, splicing a pipe truss on the ground in a sectional combination mode;
s2, mounting operation of a prestressed stay cable 1 and a plurality of stay cable stay bars 2 is carried out on the ground operation platform 6, a truss is connected to the upper end of each stay cable stay bar 2, the prestressed stay cable 1 is connected with the lower ends of all the stay cable stay bars 2 and has certain tension, and two ends of the prestressed stay cable 1 are fixed, so that the prestressed stay cable 1 is unfolded on the ground operation platform 6 and is mounted;
and S3, lifting the stay cable stay bar 2 and the prestressed stay cable 1 to a preset position together with the pipe truss by using a lifting machine, and supporting the pipe truss by using a plurality of auxiliary supporting frames 7.
In the section combination mode in the step S1, the pipe truss is divided into a first pipe truss small section 3, a second pipe truss small section 4, and a third pipe truss small section 5, each of which is prefabricated independently, and the three are provided with members connected to the upper end of the stay cable stay bar 2. In this embodiment, the first small pipe truss section 3, the second small pipe truss section 4, and the third small pipe truss section 5 are all provided with hanging lugs, and the upper ends of the stay cable stay bars 2 are hung on the hanging lugs and are connected and positioned by pin shafts.
In the step S1, a pipe truss small section one 3, a pipe truss small section two 4, and a pipe truss small section three 5 are combined into one pipe truss by using a tool through welding connection.
In step S3, the first pipe truss segment 3, the second pipe truss segment 4, and the third pipe truss segment 5 are all supported by at least one auxiliary support frame 7.
In step S3, the plurality of auxiliary supporting frames 7 are divided into two front and rear groups to respectively support the front and rear sides of the pipe truss, so as to achieve the effect of stable support, and the ground operation platform 6 is disposed on the ground between the two groups of auxiliary supporting frames 7.
In the step S1, the pipe truss is integrally of an upwardly arched arc structure, the second pipe truss segment 4 is centrally disposed, and the first pipe truss segment 3 and the third pipe truss segment 5 are respectively abutted to the left and right ends of the second pipe truss segment 4.
And an auxiliary support frame 7 for supporting the second small subsection 4 of the pipe truss is arranged to be of a portal frame structure.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A three-section one-line quick installation method for a truss string structure of a large-span pipe is characterized by sequentially comprising the following steps:
s1, splicing a pipe truss on the ground in a sectional combination mode;
s2, mounting operation of the prestressed stay cable (1) and the stay cables (2) is carried out on the ground operation platform (6), the prestressed stay cable (1) is connected with the lower ends of all the stay cable stays (2), and the prestressed stay cable (1) is unfolded on the ground operation platform (6) and is mounted;
and S3, lifting the stay cable stay bar (2) and the prestressed stay cable (1) to a preset position together with the pipe truss by using a hoisting machine, and supporting the pipe truss by using a plurality of auxiliary supporting frames (7).
2. The method for quickly installing the three sections of the truss string structure of the large-span pipe according to claim 1, wherein the method comprises the following steps: in the section combination mode in the step S1, the pipe truss is divided into a first pipe truss small section (3), a second pipe truss small section (4), and a third pipe truss small section (5), each of which is prefabricated independently, and the three are provided with members connected to the upper end of the stay cable stay bar (2).
3. The method for quickly installing the three sections of the truss string structure of the large-span pipe as claimed in claim 2, wherein the method comprises the following steps: in the step S1, a tool is used for combining the prefabricated pipe truss small sections I (3), the prefabricated pipe truss small sections II (4) and the prefabricated pipe truss small sections III (5) into a pipe truss in a welding connection mode.
4. The method for quickly installing the three sections of the truss string structure of the large-span pipe as claimed in claim 2, wherein the method comprises the following steps: in the step S3, the first pipe truss small section (3), the second pipe truss small section (4) and the third pipe truss small section (5) are all supported by at least one auxiliary support frame (7).
5. The method for quickly installing the three sections of the truss string structure of the large-span pipe according to claim 1, wherein the method comprises the following steps: in the step S3, the plurality of auxiliary support frames (7) are divided into a front group and a rear group to support the front and rear sides of the pipe truss, respectively, and the ground operation platform (6) is placed on the ground between the two groups of auxiliary support frames (7).
6. The method for quickly installing the three sections of the truss string structure of the large-span pipe as claimed in claim 4, wherein the method comprises the following steps: in the step S1, the pipe truss is integrally an arc-shaped structure that arches upward, the pipe truss small segment two (4) is arranged in the middle, and the pipe truss small segment one (3) and the pipe truss small segment three (5) are respectively butted with the left end and the right end of the pipe truss small segment two (4).
7. The method for quickly installing the three sections of the truss string structure of the large-span pipe as claimed in claim 6, wherein the method comprises the following steps: and an auxiliary support frame (7) of the support tube truss small section II (4) is of a portal frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011168205.2A CN112411758A (en) | 2020-10-28 | 2020-10-28 | Three-section one-line quick installation method for truss string structure of large-span pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011168205.2A CN112411758A (en) | 2020-10-28 | 2020-10-28 | Three-section one-line quick installation method for truss string structure of large-span pipe |
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| Publication Number | Publication Date |
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| CN112411758A true CN112411758A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011168205.2A Pending CN112411758A (en) | 2020-10-28 | 2020-10-28 | Three-section one-line quick installation method for truss string structure of large-span pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668874A (en) * | 2021-08-24 | 2021-11-19 | 中国建筑第二工程局有限公司 | Segmented sliding structure of string steel truss and construction method |
| JP7062829B1 (en) * | 2021-11-26 | 2022-05-06 | 犬飼 八重子 | Vertical stand used to construct a dome-shaped member network with straight members |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120831A (en) * | 2014-08-11 | 2014-10-29 | 哈尔滨工业大学 | Large-span inflatable pre-stress truss string and construction method thereof |
| CN104847017A (en) * | 2015-05-25 | 2015-08-19 | 中国航空规划建设发展有限公司 | Novel prestress industrial stockyard canopy structure and method for constructing same |
| CN106121116A (en) * | 2016-07-06 | 2016-11-16 | 中建钢构有限公司 | A kind of concave shape beam string construction method |
| CN107254917A (en) * | 2017-07-11 | 2017-10-17 | 浙江东南网架股份有限公司 | A kind of many order prestressed steel truss structures of super-span and its construction method |
| CN211523513U (en) * | 2019-08-15 | 2020-09-18 | 哈尔滨建创钢结构有限公司 | More effective string pipe truss structure that opens that reduces vertical displacement |
-
2020
- 2020-10-28 CN CN202011168205.2A patent/CN112411758A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120831A (en) * | 2014-08-11 | 2014-10-29 | 哈尔滨工业大学 | Large-span inflatable pre-stress truss string and construction method thereof |
| CN104847017A (en) * | 2015-05-25 | 2015-08-19 | 中国航空规划建设发展有限公司 | Novel prestress industrial stockyard canopy structure and method for constructing same |
| CN106121116A (en) * | 2016-07-06 | 2016-11-16 | 中建钢构有限公司 | A kind of concave shape beam string construction method |
| CN107254917A (en) * | 2017-07-11 | 2017-10-17 | 浙江东南网架股份有限公司 | A kind of many order prestressed steel truss structures of super-span and its construction method |
| CN211523513U (en) * | 2019-08-15 | 2020-09-18 | 哈尔滨建创钢结构有限公司 | More effective string pipe truss structure that opens that reduces vertical displacement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668874A (en) * | 2021-08-24 | 2021-11-19 | 中国建筑第二工程局有限公司 | Segmented sliding structure of string steel truss and construction method |
| JP7062829B1 (en) * | 2021-11-26 | 2022-05-06 | 犬飼 八重子 | Vertical stand used to construct a dome-shaped member network with straight members |
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Application publication date: 20210226 |