CN116104018B - Construction method of variable-section special-shaped steel tower crown installation device - Google Patents
Construction method of variable-section special-shaped steel tower crown installation deviceInfo
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- CN116104018B CN116104018B CN202310253810.7A CN202310253810A CN116104018B CN 116104018 B CN116104018 B CN 116104018B CN 202310253810 A CN202310253810 A CN 202310253810A CN 116104018 B CN116104018 B CN 116104018B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
本申请涉及变截面异形钢塔冠安装装置施工方法，该方案施工步骤包括：内撑式浇筑模板拼装；精确预埋支架及工字钢劲性骨架施工；钢塔冠精确加工的定型化胎架拼装；加工钢塔冠；安装抱箍辅助定位装置；钢塔冠吊装支架拼装；吊装钢塔冠；钢混结合段及钢塔冠施工；塔冠内升降伸缩施工平台体系施工；钢塔冠内部施工。本申请中钢塔冠加工采用定型化胎架，拼装方便，提高了安装精度和施工效率；钢塔冠吊装采用内撑兜底吊装支架，避免钢塔冠吊装变形，提高了塔冠施工质量；钢塔冠内施工采用可调整的施工平台体系，拆装便捷，大大提高了施工效率，具有广阔的应用前景。
The present application relates to a construction method for a variable-section special-shaped steel tower crown installation device, and the construction steps of the scheme include: assembly of internal support casting formwork; construction of precise embedded brackets and I-beam rigid skeletons; assembly of standardized tire frames for precise processing of steel tower crowns; processing of steel tower crowns; installation of clamp auxiliary positioning devices; assembly of steel tower crown hoisting brackets; hoisting of steel tower crowns; construction of steel-concrete combined sections and steel tower crowns; construction of a lifting and telescopic construction platform system inside the tower crown; and internal construction of steel tower crowns. In the present application, the processing of steel tower crowns adopts standardized tire frames, which are easy to assemble and improve installation accuracy and construction efficiency; the hoisting of steel tower crowns adopts internal support bottom hoisting brackets to avoid deformation of steel tower crowns during hoisting and improve the quality of tower crown construction; the construction inside the steel tower crown adopts an adjustable construction platform system, which is convenient for disassembly and assembly, greatly improves construction efficiency, and has broad application prospects.
Description
Technical Field
The application relates to the technical field of civil engineering, in particular to a construction method of a variable cross-section special-shaped steel tower crown installation device.
Background
In the new century, along with the progress of rapid urban development in China, the construction scale of urban bridges is increased, the bridges are incorporated into the constituent elements of urban buildings, more symbolization functions and cultural connotations are given to the bridges besides basic traffic functions, the large-span steel tower cable-stayed bridges with the aesthetic infection of complicated space modeling are widely focused by adopting the form of steel structure tower columns, and the safety and the sensitivity of the aesthetic on the geometric appearance of the bridges are all strict requirements on the construction precision of the cable-stayed bridges with the complicated modeling.
The steel tower body is of a special-shaped bent variable-section steel structure, the requirement on machining precision is high, and deformation of the steel member caused by temperature difference is also required to be considered during machining and installation. The steel tower is hoisted and spliced at the high altitude of tens of meters, so that higher requirements are put forward for space positioning and welding of steel tower blocks, safety containment guarantee measures in high-altitude operation are also put forward, and the difficulty is put forward for personnel operation safety. Because of the special shape of the steel tower body, when the steel tower body is divided into hoisting units, the self-support of the steel tower column and the stress variation born by the column and the tower foot under the action of wind load need to be considered when each hoisting unit of the steel tower body is installed. How to reasonably divide the hoisting units, adopting technical measures to ensure the stability in the construction of the steel inclined tower, and controlling the stress of the tower feet to be in a reasonable range is a difficult point of engineering. The mounting precision of the tower foot is guaranteed, and the foundation deformation control is used for guaranteeing the smooth implementation of the steel tower.
Therefore, how to realize accurate assembly of the special-shaped steel tower crowns is important, is a key technology for site construction, and is a serious difficulty for main tower construction.
Disclosure of Invention
The application aims to solve the problems in the prior art, and provides a construction method of a variable cross-section special-shaped steel tower crown installation device, wherein a shaping jig is adopted for processing the steel tower crown, so that the assembly is convenient, the installation precision and the construction efficiency are improved, an inner support bottom lifting bracket is adopted for lifting the steel tower crown, the lifting deformation of the steel tower crown is avoided, the construction quality is improved, an adjustable construction platform system is adopted for construction in the steel tower crown, the disassembly and the assembly are convenient, the construction efficiency is greatly improved, and the application prospect is wide.
In order to achieve the purpose of the application, the application adopts the following technical scheme that the construction method of the variable cross-section special-shaped steel tower crown installation device comprises the following steps:
s00, inner support type pouring template assembly:
connecting and fixing the diagonal rod and the diagonal rod nut, then splicing the side die and the chamfer template into a template, and fixing the diagonal rod and the connecting rod by using a connecting sleeve;
S10, accurately embedding a bracket and constructing an I-steel stiff framework:
Welding the clamping plate, the embedded steel plate and the embedded steel bars, placing the I-shaped steel adjusting jacks at the top of the upper tower column, placing the bottom of the I-shaped steel stiff framework at the top of the embedded steel plate by using a crane, and then clamping and fixing the inclined stay bars of the I-shaped steel adjusting jacks at two sides of the I-shaped steel stiff framework;
s20, assembling a finalized jig frame for precisely processing the steel tower crown:
placing the bed-jig bottom plate at a flat place, welding a stand column base on the bed-jig bottom plate, then installing a jack and a first vertical stand column, transversely installing a transverse stay bar and a telescopic jack on the first vertical stand column, and primarily completing the assembly of the shaping bed-jig;
s30, processing a steel tower crown:
Adjusting the telescopic jack to enable the transverse brace rod to move to a proper position, hoisting the tower wall and the web plate of the steel tower crown to a jig frame bottom plate of the shaping jig frame, supporting the inner wall of the steel tower crown by using a supporting plate, inserting a positioning bolt into a positioning hole for fixing, and constructing a transverse baffle plate of the steel tower crown;
S40, installing an anchor ear auxiliary positioning device:
The hoop auxiliary positioning device is hooped on the outer side of the top of the upper tower column, an auxiliary adjusting jack is arranged on the top of the upper tower column, and the auxiliary adjusting jack is supported on the inner side surface of the bottom of the steel tower crown through a supporting rod;
s50, assembling a hoisting bracket:
the vertical rod and the bottom stay bar of the lifting bracket are connected into a whole through a fixed sleeve, and a telescopic rod is arranged through an adjusting jack on the vertical rod to form the lifting bracket;
s60, hoisting a steel tower crown:
Placing the bottom of a steel tower crown in clamping channel steel at two ends of a bottom stay bar of a hoisting bracket, propping a telescopic rod against the inner wall of the steel tower crown through adjusting a jack, connecting a suspension steel wire rope with a hoisting lug plate of the telescopic rod, and hoisting the hoisting bracket to the top of an upper tower column by using a crane;
S70, construction of a steel-concrete combination section and a steel tower crown:
arranging an embedded screw rod at the top of the steel-concrete combined section, welding the top of the embedded steel bar with a diaphragm plate at the bottom of the steel tower crown, connecting a shear pin at the bottom of the steel tower crown with the steel-concrete combined section, hoisting the steel tower crown to the top of an upper tower column, and fine-tuning by using a hoop auxiliary positioning device;
connecting a steel wire rope with a hoisting piece of a side die, adjusting an adjusting jack to enable a telescopic rod to be at a proper position, hoisting an internal supporting type pouring template into a manhole at a steel-concrete joint section by using a crane, and pouring concrete of the steel-concrete joint section;
S80, constructing a lifting and telescoping construction platform system in the tower crown:
Fixing a platform bottom plate on the top of the reinforced concrete combination section by utilizing an embedded screw rod and a fixed nut, installing a second vertical upright post and a lifting jack, installing a platform top plate and a sliding platform, and installing a winch on the top of the platform top plate;
s90, construction of the inside of the steel tower crown:
The sliding platform is adjusted by utilizing the sliding steel wire rope and the winch, so that the widening and the retracting of the top plate of the platform are realized, and the special construction requirements of the variable cross section inside the steel tower crown are met until the construction inside the steel tower crown is completed.
Further, in the step S00, a diagonal rod nut is arranged in the center of the inner side face of the chamfering template, one end of the diagonal rod is arranged on the side face of the longitudinal connecting rod, the other end of the diagonal rod is connected with the diagonal rod nut, a hoisting piece is arranged at the top of the side die, and the connecting rod is arranged in the center of the side face.
Further, in the step S10, the embedded steel plate is embedded at the top of the upper tower column, the clamping plate is arranged at the top of the embedded steel plate, the embedded steel plate and the side face of the clamping plate are welded with the embedded steel bars through welding steel wires, and the I-shaped steel stiffness framework is located in a groove formed by Fang Kagu plates on the embedded steel plate.
Further, in the step S20 and the step S30, the first vertical upright post is located above the center of the top of the bottom plate of the jig frame, telescopic jacks are symmetrically arranged on the side faces of the first vertical upright post, transverse supporting rods are arranged on the telescopic jacks, the end parts of the transverse supporting rods are welded with supporting plates, and the supporting plates are supported on the inner side faces of steel tower crowns.
Further, in the step S40, an auxiliary adjusting jack is arranged at the top of the upper tower column, a supporting rod is connected with the auxiliary adjusting jack, and the outer side surface of the bottom of the steel tower crown is leaned against the limiting plate.
Further, in the step S50 and the step S60, the pole setting and the lifting support bottom stay bar are connected into a whole through the fixed sleeve, the end part of the lifting support bottom stay bar is provided with a clamping channel steel, the side face of the pole setting is symmetrically provided with an adjusting jack, a telescopic rod is arranged on the adjusting jack, the telescopic rod is supported on the inner side face of the steel tower crown, and the top of the telescopic rod is provided with a lifting lug plate.
Further, in the step S80, the top of the platform bottom plate is provided with a lifting jack, the top of the lifting jack is provided with a second vertical column, the top of the platform top plate is provided with a preformed hole, a steel wire rope fixing column and a winch, and the sliding platforms are arranged on the side surfaces of the two ends of the top plate.
Further, in the step S80, a steel wire rope fixing handle is arranged in the center of the side face of the steel wire rope fixing upright post, and the sliding steel wire rope is tied on the steel wire rope fixing handle after passing through a pulley at the top of the steel wire rope fixing upright post.
Further, in the step S80, pulleys are respectively arranged above and below the inner side end part of the sliding platform, the inner side end part of the sliding platform is connected with a traction steel wire rope, and the traction steel wire rope passes through the preformed hole and is connected with the winch.
In the step S80, an ear plate is arranged above the outer side end part of the sliding platform, and the sliding steel wire rope is connected with the ear plate.
The steel tower crown machining device has the advantages that 1, the steel tower crown machining device adopts the shaping jig, is convenient to assemble, can adapt to the tower crown machining of sections with different sizes, and improves the installation accuracy and the construction efficiency.
2. According to the application, the steel tower crown hoisting adopts the inner support bottom hoisting bracket, so that the steel tower crown hoisting deformation is avoided, the installation precision of the special-shaped steel tower crown is improved, and the construction quality of the tower crown is improved.
3. According to the application, the lifting telescopic construction platform system is adopted for the construction in the steel tower crown, so that the lifting telescopic construction platform system is convenient to assemble and disassemble, can adapt to the construction of the variable cross-section position in the tower crown, and greatly improves the construction efficiency.
4. The suspended internal support type pouring template has the advantages of high construction speed, shortened construction period, labor and equipment cost saving, improved installation efficiency, reduced labor investment, material waste saving and construction cost reduction compared with the traditional pouring mode.
5. The auxiliary positioning and adjusting device for the steel tower crown of the hoop tower column ensures the splicing quality of the tower crown and the upper tower column, simplifies the construction process, shortens the construction period, can improve the installation accuracy of the tower crown, reduces the cost and improves the economic benefit.
6. The accurate pre-buried bracket of the I-steel stiff framework greatly improves the installation and construction efficiency of the I-steel stiff framework, ensures the construction quality and improves the construction quality and the accuracy of the tower crown.
Drawings
FIG. 1 is an elevation view of a crown structure;
FIG. 2 is a plan view of a crown floor;
FIG. 3 is a plan view of the tower crown bottom diaphragm mounting;
FIG. 4 is a plan view of a mid-tower bulkhead mounting;
FIG. 5 is an elevation view of a finalized jig for precision machining of steel crowns;
FIG. 6 is an elevation view of a steel crown lifting bracket;
FIG. 7 is an elevation view of the auxiliary positioning adjustment device for the steel crown of the hoop tower column;
FIG. 8 is a detailed elevation view of the auxiliary positioning adjustment device;
FIG. 9 is an elevation view of an accurate pre-embedded bracket of the I-steel stiff framework;
FIG. 10 is an elevation view of a detail of a precision pre-buried bracket;
FIG. 11 is an elevation view of a steel-concrete joint section suspended internal bracing casting form;
FIG. 12 is a plan view of a suspended internal stay casting form;
FIG. 13 is an elevation view of a construction platform system for lifting and telescoping construction in a tower crown;
FIG. 14 is a drawing of an end block diagram of a traction slide;
FIG. 15 is a traction slip telescoping plate anchoring construction;
fig. 16 is a construction flow chart of the present application.
In the figure, 1, tower wall; 2, a diaphragm; 3, I-steel stiffness framework; 4, a web plate, 5, embedded bars, 6, an upper tower column, 7, a steel-concrete combined section, 8, a shear pin, 9, a steel tower crown, 10, a manhole, 11, a vertical rib, 12, a connecting plate, 13, a transverse stay, 14, a first vertical column, 15, a telescopic jack, 16, a supporting plate, 17, a positioning bolt, 18, a jack, 19, a column base, 20, a tire frame bottom plate, 21, a positioning hole, 22, a clamping channel, 23, a lifting lug plate, 24, a vertical rod, 25, an adjusting jack, 26, a hanging steel wire rope, 27, a lifting support bottom stay, 28, a fixing sleeve, 29, a hoop auxiliary positioning device, 30, a limiting plate, 31, a supporting rod, 32, an auxiliary adjusting jack, 33, a steel wire rope, 34, an inner supporting pouring template, 35, a side mold, 36, a lifting piece, 37, a chamfer template, 38, a diagonal rod, 39, a connecting sleeve, 40, a diagonal rod nut, 41, a diagonal stay, 42, a steel adjusting jack, 43, a clamping plate, 44, a fixing plate, 45, a steel wire rope, 27, a lifting support bottom plate, a lifting support, a steel wire rope, 28, a fixing sleeve, 29, a steel wire rope, a fixing support, a wire rope, a lifting support, a lifting support, a lifting, a lifting, a.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not refer to or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the above terms should not be construed as limiting the present application.
As shown in fig. 1 to 16, the construction method of the variable cross-section special-shaped steel tower crown installation device comprises the following steps:
S00, assembling the internal support type pouring template 34:
As shown in fig. 12, the diagonal rod 38 and the diagonal rod nut 40 are connected and fixed, then the side die 35 and the chamfer die plate 37 are assembled into a die plate, and then the diagonal rod 38 and the connecting rod 64 are fixed by the connecting sleeve 39;
Wherein, chamfer template 37 medial surface is equipped with diagonal bar nut 40 in the middle, and diagonal bar 38 one end is established in the side of longitudinal connecting rod 64, and the other end is connected with diagonal bar nut 40, and side form 35 top is equipped with hoist and mount piece 36, and the side center is equipped with connecting rod 64.
S10, accurately embedding a bracket and constructing an I-steel stiff framework 3:
As shown in fig. 9-10, welding a clamping plate 43 and an embedded steel plate 44 with embedded steel bars 5, placing a I-steel adjusting jack 42 at the top of an upper tower column 6, placing the bottom of the I-steel stiff skeleton 3 at the top of the embedded steel plate 44 by using a crane, and then clamping and fixing diagonal stay bars 41 of the I-steel adjusting jacks 42 at two sides of the I-steel stiff skeleton 3;
Wherein, pre-buried steel sheet 44 pre-buried in last column 6 top, pre-buried steel sheet 44 top is equipped with card solid board 43, and pre-buried steel sheet 44 and card solid board 43 side pass through welded wire 45 and are welded with embedded bar 5, and I-steel strength nature skeleton 3 is located the inslot that Fang Kagu boards 43 constitute on the pre-buried steel sheet 44, and I-steel strength nature skeleton 3 lateral surface welds with connecting plate 12 for the side of diaphragm plate 2 of steel tower crown 9.
S20, assembling a shaping jig frame 61 for accurately machining the steel tower crown 9:
placing the jig frame bottom plate 20 at a flat place, welding a stand column base 19 on the jig frame bottom plate 20, then installing a jack 18 and a first vertical stand column 14, transversely installing a transverse stay bar 13 and a telescopic jack 15 on the first vertical stand column 14, and primarily completing the assembly of the shaping jig frame 61;
s30, machining a steel tower crown 9:
as shown in fig. 5, the telescopic jack 15 is adjusted to enable the transverse brace 13 to move to a proper position, the tower wall 1 and the web 4 of the steel tower crown 9 are hoisted to the jig frame bottom plate 20 of the shaping jig frame 61, the inner wall of the steel tower crown 9 is supported by the supporting plate 16, and then the positioning bolt 17 is inserted into the positioning hole 21 to be fixed, so that the diaphragm plate 2 of the steel tower crown 9 is constructed;
the first vertical upright column 14 is located above the center of the top of the jig frame bottom plate 20, telescopic jacks 15 are symmetrically arranged on the side faces of the first vertical upright column 14, transverse supporting rods 13 are arranged on the telescopic jacks 15, the end portions of the transverse supporting rods 13 are welded with supporting plates 16, and the supporting plates 16 are supported on the inner side faces of the steel tower crowns 9. A jack 18 is arranged above the center of the top of the jig frame bottom plate 20, the jack 18 is connected with the first vertical upright column 14, a plurality of positioning holes 21 are formed in two sides of the top of the jig frame bottom plate 20, and positioning bolts 17 are inserted into the positioning holes 21.
Preferably, the tower wall 1 is also provided with vertical rib-adding ribs 11 which are uniformly arranged at intervals, and the vertical rib-adding ribs 11 are welded with the diaphragm plate 2.
S40, installing the anchor ear auxiliary positioning device 29:
As shown in fig. 7-8, the hoop auxiliary positioning device 29 is hooped on the outer side of the top of the upper tower column 6, the auxiliary adjusting jack 32 is arranged on the top of the upper tower column 6 and is supported on the inner side surface of the bottom of the steel tower crown 9 through the supporting rod 31;
Wherein, auxiliary adjustment jack 32 sets up at the top of upper column 6, and bracing piece 31 is connected with auxiliary adjustment jack 32, and steel tower crown 9 bottom lateral surface leans on limiting plate 30.
S50, assembling the hoisting support 62:
As shown in fig. 6, the upright 24 and the lifting support bottom stay 27 are connected into a whole by a fixed sleeve 28, and a telescopic rod 63 is arranged by an adjusting jack 25 on the upright 24 to form a lifting support 62;
s60, hoisting a steel tower crown 9:
the bottom of the steel tower crown 9 is placed in clamping channel steel 22 at two ends of a lifting support bottom stay bar 27, a telescopic rod 63 is propped against the inner wall of the steel tower crown 9 through an adjusting jack 25, a suspension steel wire rope 26 is connected with a lifting lug plate 23 of the telescopic rod 63, and a lifting support 62 is lifted to the top of an upper tower column 6 by a crane;
Wherein, pole setting 24 and hoist and mount support bottom stay 27 pass through fixed sleeve 28 to be connected as a whole, and hoist and mount support bottom stay 27 tip is equipped with card solid channel-section steel 22, and pole setting 24 side symmetry is equipped with adjustment jack 25, is equipped with telescopic link 63 above the adjustment jack 25, and telescopic link 63 supports the medial surface at steel tower crown 9, and telescopic link 63 top is equipped with hoist and mount otic placode 23.
S70, construction of the steel-concrete combined section 7 and the steel tower crown 9:
As shown in fig. 11, an embedded screw 48 is arranged at the top of the reinforced concrete combination section 7, the top of the embedded steel bar 5 is welded with the diaphragm plate 2 at the bottom of the steel tower crown 9, the shear pin 8 at the bottom of the steel tower crown 9 is connected with the reinforced concrete combination section 7, the steel tower crown 9 is hoisted to the top of the upper tower column 6, and fine adjustment is carried out by using a hoop auxiliary positioning device 29;
Connecting the steel wire rope 33 with the hoisting piece 36 of the side die 35, adjusting the adjusting jack 25 to enable the telescopic rod 63 to be at a proper position, hoisting the internal support type pouring template 34 into the manhole 10 at the position of the reinforced concrete joint section 7 by using a crane, and pouring concrete of the reinforced concrete joint section 7;
S80, constructing a lifting and telescoping construction platform system in the tower crown:
13-15, a platform bottom plate 49 is fixed on the top of the reinforced concrete combination section 7 by utilizing a pre-buried screw rod 48 and a fixed nut 50, a second vertical upright post 46 and a lifting jack 47 are installed, a platform top plate 54 and a sliding platform 59 are installed, and a winch 53 is installed on the top of the platform top plate 54;
Wherein, platform bottom plate 49 top is equipped with lift jack 47, and lift jack 47 top is equipped with second vertical stand 46, and platform roof 54 is established at second vertical stand 46 top, and platform roof 54 top is equipped with preformed hole 55, wire rope fixed stand 56 and hoist engine 53, and sliding platform 59 establishes at platform roof 54 both ends side.
S90, internal construction of the steel tower crown 9:
The sliding platform 59 is adjusted by utilizing the sliding steel wire rope 58 and the winch 53, so that the widening and the retraction of the platform top plate 54 are realized, and the special construction requirements of the variable cross section inside the steel tower crown 9 are met until the construction inside the steel tower crown 9 is completed. The center of the side surface of the steel wire rope fixing upright post 56 is provided with a steel wire rope fixing handle 57, and a sliding steel wire rope 58 is tied on the steel wire rope fixing handle 57 after passing through a pulley at the top of the steel wire rope fixing upright post 56. Pulleys 51 are respectively arranged above and below the inner side end of the sliding platform 59, the inner side end of the sliding platform 59 is connected with a traction steel wire rope 52, and the traction steel wire rope 52 passes through the reserved hole 55 and is connected with a winch 53. An ear plate 60 is arranged above the outer side end part of the sliding platform 59, and the sliding wire rope 58 is connected with the ear plate 60.
In the embodiment, the construction structure of the application is mainly divided into a finalized jig frame 61 for accurately processing the steel tower crown 9, a steel tower crown hoisting bracket 62, a hoop auxiliary positioning device 29, an accurate pre-buried bracket of the I-steel stiffness framework 3, an internal supporting type pouring template 34 and a lifting and telescoping construction platform system in the tower crown.
The application is not described in detail in the prior art, and therefore, the application is not described in detail.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Although specific terms are used more herein, the use of other terms is not precluded. These terms are only used to more conveniently describe and explain the nature of the application and should be construed in a manner consistent with their spirit and scope.
The present application is not limited to the above-mentioned preferred embodiments, and any person can obtain various other products without departing from the scope of the present application, but any changes in shape or structure of the present application are within the scope of the present application.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310253810.7A CN116104018B (en) | 2023-03-13 | 2023-03-13 | Construction method of variable-section special-shaped steel tower crown installation device |
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| CN116104018B true CN116104018B (en) | 2025-07-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114033234A (en) * | 2021-12-14 | 2022-02-11 | 安徽省路港工程有限责任公司 | Novel main tower crown structure and sectional installation method thereof |
| CN114808704A (en) * | 2021-07-14 | 2022-07-29 | 中铁四局集团第二工程有限公司 | Construction method of steel-concrete combined section of special-shaped tower column |
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| CN115679842B (en) * | 2022-11-16 | 2025-09-02 | 安徽省交通建设股份有限公司 | Construction method of in-situ assembly of large special-shaped steel anchor beams |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808704A (en) * | 2021-07-14 | 2022-07-29 | 中铁四局集团第二工程有限公司 | Construction method of steel-concrete combined section of special-shaped tower column |
| CN114033234A (en) * | 2021-12-14 | 2022-02-11 | 安徽省路港工程有限责任公司 | Novel main tower crown structure and sectional installation method thereof |
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