CN110566029A - gradual installation and construction method for high-rise steel tower - Google Patents
gradual installation and construction method for high-rise steel tower Download PDFInfo
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- CN110566029A CN110566029A CN201910788512.1A CN201910788512A CN110566029A CN 110566029 A CN110566029 A CN 110566029A CN 201910788512 A CN201910788512 A CN 201910788512A CN 110566029 A CN110566029 A CN 110566029A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/32—Flagpoles
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
the invention provides a gradual installation and construction method of a high-rise steel tower, which comprises the following steps: segmenting a steel tower to be built according to a design scheme; secondly, arranging a special assembling jig frame on a construction site; thirdly, transporting the steel tower frame component to a construction site; fourthly, assembling each subsection body of the steel tower frame on site by utilizing a special assembling jig frame; and fifthly, hoisting each segmented body step by step from bottom to top by using a truck crane and connecting the segmented bodies by using flange bolts to complete the construction and installation of the steel tower. According to the method, all the high-altitude connections of the sectional bodies of the steel tower frame of the high-rise structure are connected through the flanges and the bolts during construction, so that the high-altitude welding construction and alignment difficulty can be avoided, the assembling precision and quality are improved, the installation construction is safe and convenient, the construction period can be greatly shortened, the construction cost is saved, and meanwhile, the installation precision and the verticality of the high-rise steel tower frame can be effectively guaranteed.
Description
Technical Field
The invention relates to a construction method for installing a steel structure building, in particular to a gradual construction method for installing a high-rise steel tower.
background
the steel structure is an environment-friendly building structure which is easy to industrialize and reutilize, and the building steel structure mainly takes a house steel structure, and is also used for various structures such as tower masts, oil extraction platforms, gates, brackets and the like, and mechanical equipment such as tower cranes, containers, blast furnaces, boilers, transmission equipment and the like. Steel structure structures such as boiler steel frames, chemical chimney towers, power plant steel tower masts and the like are generally ultrahigh and oversized high-rise steel structure structures, and the installation is relatively difficult. At present, the installation and construction method of the steel tower frame of the chemical chimney is that after a steel tower frame main body is manufactured in advance, an ultra-long and ultra-large transport vehicle is used for transporting to a construction site, and then ultra-large and ultra-heavy type hoisting equipment is used for carrying out site installation, the transportation and the transition are very difficult, and the use cost of the transportation and hoisting equipment is very high; one is to transport the component of the steel tower to the construction site, utilize the hoisting equipment to utilize the welding to be the main means of constructing and building directly at the scene, and because the height of chemical industry chimney steel tower is very high, when the steel tower is constructed to the high position, when utilizing the hoist to set up the assistance and carry out the welding construction, the butt joint of counterpoint between the component and high altitude welding operation are very difficult, assemble precision and quality when the steel tower is constructed to the high position and are easily influenced. Therefore, it is necessary to search for a new construction method for high-rise steel structure structures such as chemical chimney steel towers.
disclosure of Invention
The purpose of the invention is: the progressive installation and construction method for the high-rise steel tower can effectively guarantee the installation accuracy and the verticality of the high-rise steel tower and shorten the installation construction period.
The technical scheme of the invention is as follows: the invention discloses a gradual installation construction method of a high-rise steel tower, which comprises the following steps:
Segmenting a steel tower to be built according to a design scheme: the method comprises the steps that factors such as the length limit value of a site road transportation component, the hoisting capacity and the operation radius limit of a site hoisting device, the avoidance of a main stress point of a segmentation breakpoint and the like are considered, a steel tower to be built is designed in a segmentation mode, and the steel tower to be built is divided into a plurality of discrete segmented bodies according to the design scheme of the steel tower to be built;
Secondly, arranging a special assembling jig frame on a construction site: according to the structure of the segment body, a corresponding special assembling jig frame is preset on a construction site;
Thirdly, transporting the steel tower component to a construction site: constructing a required dispersed component transportation construction site for the steel tower;
fourthly, assembling each subsection body of the steel tower frame on site by utilizing the special assembling jig: welding each subsection body of the assembled steel tower frame on the ground of a construction site by using a special assembling jig, and welding flanges for connection at the upper end and the lower end of a plurality of longitudinal steel main beams arranged on each subsection body;
Hoisting each subsection body step by step from bottom to top by using a truck crane and connecting the subsection bodies by using flange bolts: hoisting the 1 st subsection body arranged at the lowest part to a set station by using a truck crane, and fixedly connecting flanges at the lower ends of the longitudinal steel main beams of the 1 st subsection body with a preset tower foundation through high-strength bolts; then hoisting the 2 nd subsection body to be aligned above the 1 st subsection body, and after the flanges at the upper ends of the longitudinal steel main beams of the 1 st subsection body are butted with the flanges at the lower ends of the longitudinal steel main beams of the 1 st subsection body, fixedly connecting the upper flange and the lower flange by using high-strength bolts; and hoisting the third segment body to the last segment body one by one according to the method to complete the construction and installation of the steel tower.
the invention has the positive effects that: the invention relates to a progressive installation and construction method of a high-rise steel tower, which is characterized in that the steel tower is reasonably divided into a plurality of sectional bodies according to design during construction, then a special section steel splicing jig is arranged on a construction site to weld and splice each sectional body on the ground in advance, flanges for connection are arranged at the head and the tail of a longitudinal steel main beam of each sectional body, then the spliced sectional bodies are sequentially and one by one hoisted from bottom to top by utilizing a truck crane, and the high-altitude connection of each sectional body is completely connected by the flanges and bolts, so that the high-altitude welding and alignment difficulties can be avoided, the assembly precision and the assembly quality can be improved, compared with the prior art, the installation and construction are safe and convenient, the construction period can be greatly shortened, the construction cost can be saved, and the installation precision and the verticality of the high-rise steel tower can be effectively ensured.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic structural view of a chemical chimney steel tower in an embodiment completed by the method of the present invention;
FIG. 3 is a schematic structural diagram of a segmented body of a steel tower assembled on the ground in the embodiment;
FIG. 4 is a schematic structural diagram of a connecting node between two adjacent segmented bodies of the steel tower in the embodiment;
FIG. 5 is a schematic structural diagram of a first section of steel tower hoisted by a truck crane in the embodiment;
FIG. 6 is a schematic structural diagram of a second section of steel tower hoisted by a truck crane in the embodiment;
FIG. 7 is a schematic structural diagram of a seventh steel tower section hoisted by a truck crane in the embodiment.
The reference numbers in the above figures are as follows:
The steel tower comprises a longitudinal steel main beam 1, a flange 2, a truss 3, a steel platform 4, a ladder stand 5, a tower foundation 6, a truck crane 7 and a chimney 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
(example 1)
the gradual installation construction method of the high-rise steel tower is suitable for field installation of ultrahigh and overlarge high-rise steel structure structures such as boiler steel frames, chemical chimney steel towers, power plant steel tower masts and the like. In this embodiment, the construction method is described by taking a chemical chimney steel tower as an example.
Referring to fig. 1 to 7, the gradual installation and construction method of the high-rise steel tower in the embodiment is mainly implemented by the following steps:
Segmenting a steel tower to be built according to a design scheme: and (3) carrying out sectional design on the steel tower to be built by considering factors such as the length limit value of a road transportation component on a construction site, the hoisting capacity of on-site hoisting equipment, the limitation of an operation radius, the avoidance of a main stress point of a sectional breakpoint and the like, and dividing the steel tower to be built into a plurality of discrete sectional bodies according to the design scheme of the steel tower to be built.
In this embodiment, the chemical chimney steel tower is divided into 7 discrete segmented bodies D1 to D7, as shown in fig. 3, each segmented body includes 4 longitudinal steel girders 1, flanges 2 fixedly disposed at the head and tail ends of each longitudinal steel girder 1, 4 sets of 4 trusses 3 each fixedly disposed between every two adjacent longitudinal steel girders 1, a steel platform 4 fixedly disposed on the upper portions of the 4 longitudinal steel girders 1 and 4 trusses 3, and a ladder stand 5 fixedly disposed in a space surrounded by the 4 sets of trusses 3, a chimney passing hole is disposed on the steel platform 4, a pedestrian passing hole is disposed on the steel platform 4 at a corresponding portion of the upper end of the ladder stand 5, and after the steel tower is installed, the chimney passing hole on each steel platform 4 has a limiting and shake-stopping function for the chimney 8 (see fig. 2 and 4).
Secondly, arranging a special assembling jig frame on a construction site: according to the structure of the segment body, a corresponding special assembling jig frame is preset on a construction site.
thirdly, transporting the steel tower component to a construction site: and (4) constructing the required dispersed components of the steel tower on a transportation construction site.
fourthly, assembling each subsection body of the steel tower frame on site by utilizing the special assembling jig: welding and assembling each subsection of the steel tower frame on the ground of a construction site by using a special assembling jig, and completing the welding and assembling of each subsection of the steel tower frame according to the sequence that a truss 3 is welded between longitudinal steel main beams 1, a steel platform 4 is welded on the upper parts of 4 longitudinal steel main beams 1 and 4 sets of trusses 3, flanges 2 are welded at two ends of 4 longitudinal steel main beams 1, and a ladder 5 is welded in a space enclosed by 4 sets of trusses 3, wherein the longitudinal steel main beams 1 and a flange groove are welded thoroughly and the like, the structure of the welded and assembled subsection is as shown in figure 3, after the assembling of each subsection is completed, splicing and checking is performed on two adjacent subsections one by adopting a horizontal connection mode on the ground so as to facilitate the correct splicing during hoisting.
hoisting each subsection body step by step from bottom to top by using a truck crane and connecting the subsection bodies by using flange bolts: referring to fig. 5 to 7, a 1 st segment D1 is hoisted to a set station by a truck crane, and flanges 2 at the lower ends of 4 longitudinal steel main beams 1 of the 1 st segment D1 are fixedly connected with a preset tower foundation 6 by high-strength bolts; then hoisting the 2 nd subsection D2 to align above the 1 st subsection D1, butting the flanges 2 at the upper ends of the 4 longitudinal steel main beams 1 of the 1 st subsection D1 with the flanges 2 at the lower ends of the 4 longitudinal steel main beams 1 of the 2 nd subsection D2, and then fixedly connecting the upper and lower flanges 2 by using high-strength bolts; the connected nodes are as shown in fig. 4, and the third subsection D3 to the seventh subsection D3 are hoisted one by one according to the method, so that the construction and installation of the chemical chimney steel tower are completed.
The above embodiments are illustrative of specific embodiments of the present invention, and are not restrictive of the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention to obtain corresponding equivalent technical solutions, and therefore all equivalent technical solutions should be included in the scope of the present invention.
Claims (1)
1. A gradual installation and construction method for a high-rise steel tower is characterized by comprising the following steps:
Segmenting a steel tower to be built according to a design scheme: the method comprises the steps that factors such as the length limit value of a site road transportation component, the hoisting capacity and the operation radius limit of a site hoisting device, the avoidance of a main stress point of a segmentation breakpoint and the like are considered, a steel tower to be built is designed in a segmentation mode, and the steel tower to be built is divided into a plurality of discrete segmented bodies according to the design scheme of the steel tower to be built;
secondly, arranging a special assembling jig frame on a construction site: according to the structure of the segment body, a corresponding special assembling jig frame is preset on a construction site;
Thirdly, transporting the steel tower component to a construction site: constructing a required dispersed component transportation construction site for the steel tower;
Fourthly, assembling each subsection body of the steel tower frame on site by utilizing the special assembling jig: welding each subsection body of the assembled steel tower frame on the ground of a construction site by using a special assembling jig, and welding flanges for connection at the upper end and the lower end of a plurality of longitudinal steel main beams arranged on each subsection body;
Hoisting each subsection body step by step from bottom to top by using a truck crane and connecting the subsection bodies by using flange bolts: hoisting the 1 st subsection body arranged at the lowest part to a set station by using a truck crane, and fixedly connecting flanges at the lower ends of the longitudinal steel main beams of the 1 st subsection body with a preset tower foundation through high-strength bolts; then hoisting the 2 nd subsection body to be aligned above the 1 st subsection body, and after the flanges at the upper ends of the longitudinal steel main beams of the 1 st subsection body are butted with the flanges at the lower ends of the longitudinal steel main beams of the 1 st subsection body, fixedly connecting the upper flange and the lower flange by using high-strength bolts; and hoisting the third segment body to the last segment body one by one according to the method to complete the construction and installation of the steel tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910788512.1A CN110566029A (en) | 2019-08-26 | 2019-08-26 | gradual installation and construction method for high-rise steel tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910788512.1A CN110566029A (en) | 2019-08-26 | 2019-08-26 | gradual installation and construction method for high-rise steel tower |
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| CN110566029A true CN110566029A (en) | 2019-12-13 |
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| CN201910788512.1A Pending CN110566029A (en) | 2019-08-26 | 2019-08-26 | gradual installation and construction method for high-rise steel tower |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021810A (en) * | 2019-12-25 | 2020-04-17 | 长沙天仪空间科技研究院有限公司 | Satellite antenna's support tower based on auto-lock structure |
| CN112575133A (en) * | 2020-11-30 | 2021-03-30 | 上海宝冶冶金工程有限公司 | Method for mounting jig frame of furnace body |
| CN114232915A (en) * | 2021-12-31 | 2022-03-25 | 中铁五局集团有限公司 | Method for assembling canopy hanging sheet units of roof of station at traffic hub site |
| WO2022123521A1 (en) * | 2020-12-11 | 2022-06-16 | Terna S.P.A. | Modular lattice tower to build a high voltage aerial electric transmission line, with variable multi-purpose arrangement, its modular system and method of construction |
| CN114909013A (en) * | 2022-05-06 | 2022-08-16 | 安徽航塔新能源科技有限公司 | Triangular-section frame-type 5G signal transmitting tower and manufacturing process |
| CN115045560A (en) * | 2022-06-23 | 2022-09-13 | 中建钢构工程有限公司 | Pre-assembly method of special-shaped high-rise steel structure |
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| CN107795185A (en) * | 2016-08-29 | 2018-03-13 | 中国二十冶集团有限公司 | Chimney reinforces pylon high-altitude installation node security construction method |
| CN108756437A (en) * | 2018-05-30 | 2018-11-06 | 江苏省江建集团有限公司 | A kind of construction technology of high-altitude large size assembling shape steel member |
| KR20190018299A (en) * | 2017-08-14 | 2019-02-22 | 한국전력공사 | Electric pole for changing transmission power and installing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021810A (en) * | 2019-12-25 | 2020-04-17 | 长沙天仪空间科技研究院有限公司 | Satellite antenna's support tower based on auto-lock structure |
| CN111021810B (en) * | 2019-12-25 | 2021-09-21 | 长沙天仪空间科技研究院有限公司 | Satellite antenna's support tower based on auto-lock structure |
| CN112575133A (en) * | 2020-11-30 | 2021-03-30 | 上海宝冶冶金工程有限公司 | Method for mounting jig frame of furnace body |
| CN112575133B (en) * | 2020-11-30 | 2022-09-16 | 上海宝冶冶金工程有限公司 | Method for mounting jig frame of furnace body |
| WO2022123521A1 (en) * | 2020-12-11 | 2022-06-16 | Terna S.P.A. | Modular lattice tower to build a high voltage aerial electric transmission line, with variable multi-purpose arrangement, its modular system and method of construction |
| CN114232915A (en) * | 2021-12-31 | 2022-03-25 | 中铁五局集团有限公司 | Method for assembling canopy hanging sheet units of roof of station at traffic hub site |
| CN114909013A (en) * | 2022-05-06 | 2022-08-16 | 安徽航塔新能源科技有限公司 | Triangular-section frame-type 5G signal transmitting tower and manufacturing process |
| CN115045560A (en) * | 2022-06-23 | 2022-09-13 | 中建钢构工程有限公司 | Pre-assembly method of special-shaped high-rise steel structure |
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Application publication date: 20191213 |