CN108086695B - Auxiliary sleeve type lifting tool and construction method - Google Patents

Auxiliary sleeve type lifting tool and construction method Download PDF

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Publication number
CN108086695B
CN108086695B CN201711345270.6A CN201711345270A CN108086695B CN 108086695 B CN108086695 B CN 108086695B CN 201711345270 A CN201711345270 A CN 201711345270A CN 108086695 B CN108086695 B CN 108086695B
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Prior art keywords
lifting
support
lifting frame
stage
tool
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CN201711345270.6A
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CN108086695A (en
Inventor
覃祚威
赵文雁
娄峰
陈忠
柳跃强
张坚洪
马滔
何照然
李迪
王欢
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Zhejiang Jinggong Steel Structure Group Co Ltd
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Zhejiang Jinggong Steel Structure Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • E04G21/16Tools or apparatus
    • E04G21/162Handles to carry construction blocks
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

Abstract

The invention belongs to the field of steel structure buildings, and particularly relates to an attached sleeve type lifting tool and a construction method, wherein the lifting tool comprises a lifting frame support, a lifting frame and a lifting frame cross beam; the lifting method mainly comprises the following steps: (1) a lofting stage; (2) a mechanical analysis stage; (3) a drawing design stage; (4) a component processing stage; (5) a tool mounting stage; (6) a construction lifting stage; (7) a lifting tool dismantling stage; (8) and a tool reinforcement and recycling stage is promoted. The invention effectively solves the problems of high construction risk and poor economy when the independent lifting frame is arranged on the ground or the floor and has large height; the lifting construction problem under the condition that the structure column embedded part cannot be constructed is effectively solved.

Description

Auxiliary sleeve type lifting tool and construction method
Technical Field
The invention belongs to the field of steel structure buildings, and particularly relates to an auxiliary sleeve type lifting tool and a construction method.
Background
Along with the development of the comprehensive strength of the country, the living standard of people is improved, the demand on large-span space structures such as airports, stadiums, cultural entertainment venues and the like is more and more strong, and the large-span space steel structure which has the advantages of excellent spanning capacity and comprehensive stress indexes, high assembly rate and environmental protection is produced at the same time.
The hoisting construction scheme applies general conditions: 1) the construction site is narrow, and large-scale hoisting equipment can not be assembled or can not walk outside the site. 2) The steel structure roof has large area and is not suitable for hoisting construction by using off-site large hoisting equipment. 3) The civil engineering structure below the steel structure roof is complicated, and is not suitable for entering the field for hoisting by adopting hoisting equipment. 4) The steel structure roof is high from the floor, and the high-altitude construction danger of high-altitude bulk loading or block hoisting is large. 5) The stress form of the structure is not suitable for adopting sliding construction. Therefore, under the above conditions, the lifting scheme is preferably adopted.
In the conventional lifting construction of the steel structure roof, the following lifting frame installation methods are generally adopted: 1) an independent lifting frame is arranged on the ground or the floor. 2) The column where the structural support is located is provided with a rigid connection bracket (such as a reinforced concrete column is provided with an embedded part and a steel bracket, and a steel column is welded with the steel bracket). 3) The articulated supports are temporarily reinforced, using the structure itself as a lifting frame.
The conventional hoisting frame of steel construction roof sets up shortcoming: 1) when the independent lifting frame is arranged on the ground or the floor, the construction risk is high and the economical efficiency is poor. 2) The design progress of the lifting scheme of the steel structure roof restricts the construction progress of the reinforced concrete column, otherwise, the embedded part below the lifting frame cannot be constructed. 3) When the design side does not allow for temporary reinforcement of the articulated support, the structural column cannot be utilized as a lifting frame.
Disclosure of Invention
The invention aims to provide an auxiliary sleeve type lifting tool and a construction method, which effectively solve the problems of high construction risk and poor economical efficiency when an independent lifting frame is arranged on the ground or a floor and is high in height. The lifting construction problem under the condition that the structure column embedded part cannot be constructed is effectively solved.
In order to achieve the purpose, the invention specifically discloses the technical scheme as follows:
a jacket-attached lifting tool is arranged on a structural column and comprises a lifting frame support, a lifting frame and a lifting frame cross beam; the lifting frame support comprises a support outer ring plate, a support sleeve which is positioned at the inner ring of the support outer ring plate and fixed on the structural column, and a support bracket which is fixed on the support outer ring plate; the lifting frame comprises lifting frame upright columns fixed on the bracket of the support, and the lifting frame upright columns are connected through lifting frame web members; the lifting frame beam is fixed on the top of the lifting frame.
An auxiliary sleeve type lifting construction method comprises the following steps:
(1) a lofting stage: determining the positions and the cross-sectional forms of a support sleeve, a lifting frame, a support bracket, a lifting frame upright post, a lifting frame web member and a lifting frame cross beam of the lifting tool through three-dimensional lofting;
(2) and (3) a mechanical analysis stage: three-dimensional modeling and integral mechanical analysis of the calculation model; finite element analysis is carried out on the lifting frame support; determining the size of the section of the component;
(3) and (3) a drawing design stage: designing a processing drawing according to the size and lofting of the section of the component;
(4) and (3) a component processing stage: the support of the lifting tool is processed into a whole in a factory; a hoisting frame of the hoisting tool is processed into a truss in a factory;
(5) tool installation stage: the structure support is firstly installed, the lifting frame support is sleeved on the outer side of the structure support, and the structure support and the lifting frame support are not connected; the lifting frame upright post is welded on the bracket of the support;
(6) and (3) lifting construction stage: the internal force of the lifting frame is transmitted to the lifting frame support and then transmitted to the structural column through the column top embedded part, and the structural support does not bear the load transmitted by the lifting tool;
(7) and a lifting tool dismantling stage: after the connection of the structural rod piece and the structural support is finished, the lifter is gradually unloaded, and finally, the dismounting can be started until the lifting tool is in a state without external load;
(8) promote frock reinforcement and cyclic utilization stage: the cutting entrance to hoisting frame support sleeve side carries out the reinforcement, polishes leveling hoisting frame support sleeve lower extreme and hoisting frame stand cutting entrance to a cave.
An attached lift construction method is further provided, wherein the three-dimensional lofting in the step (1) comprises the following steps: and (4) considering the assembling state of the lifted structure, the conditions of lifting to a designed elevation state and a rod supplementing state, and performing full-size three-dimensional lofting.
A jacket-type hoisting construction method is further provided, wherein the three-dimensional modeling of the calculation model in the step (2) comprises the following steps: the calculation model comprises a lifting frame support, a lifting frame cross beam and a structural column, and the influence of the structural column and the support on the lifting tool is considered.
An additional sleeve type lifting construction method is further provided, wherein the lifting frame support in the step (4) is integrally processed in a factory: the support sleeve, the outer ring plate and the bracket of the tool to be lifted are welded into a whole and transported to a construction site.
The auxiliary sleeve type lifting construction method is further provided, wherein the lifting frame in the step (4) is processed into a truss in a factory: the hoisting frame is a quadrilateral lattice column, is processed into a plane truss in a factory, and is assembled and molded after being transported to a construction site.
A jacket-attached lifting construction method is further provided, wherein in the lifting tool dismantling stage in the step (7): after the post-installed rod pieces are completely installed, all the hoisting points are simultaneously lowered and unloaded by 10 percent according to the calculated hoisting load as a reference; in the process, the load of some hoisting points exceeds 10% of the load before unloading, or the displacement of the hoisting points is out of synchronization and reaches 10mm, the unloading of other points is immediately stopped, and the abnormal points are unloaded independently; repeating the steps until the steel strand is completely loosened; after the steel strand wires are completely loosened, the lifting frame is not under the action of external load, and the lifting tool can be detached.
A jacket-attached lifting construction method is further provided, wherein in the lifting tool dismantling stage in the step (7): after the structure is installed, the structural rod pieces are inserted into the lifting frame, so that part of the web members of the lifting frame need to be cut and removed, and the lifting frame upright posts can be lifted off after being cut off from the bracket of the support; the poppet seat sleeve also needs to be cut to two semi-circles back to enable the lifting off.
Compared with the prior art, the invention has the following advantages:
firstly, fully utilizing a structural column; the problems of high construction risk and poor economy when the independent lifting frame is arranged on the ground or the floor and is high are effectively solved.
Secondly, a bracket of a lifting tool does not need to be embedded in the reinforced concrete structural column; the problem that the construction progress of the reinforced concrete column is restricted by the design progress of a lifting scheme of the steel structure roof is avoided; the lifting problem of the embedded part under the condition that the embedded part cannot be constructed due to the fact that the reinforced concrete column is constructed or the reinforced concrete column has complex structures such as prestress and the like is solved.
Thirdly, the support of the tool is sleeved on the outer side of the structural support, and the support and the structural support are not connected; the lifting frame vertical column is arranged on a bracket of the tool support, and the structural support is not welded with the lifting frame bracket, so that the structural support is prevented from being damaged by welding; and the structural support does not bear the load transmitted by the lifting frame, so that the structural support is prevented from being damaged when the lifting counter force is greater than a designed value.
And fourthly, the auxiliary sleeve type lifting tool is processed in a factory, installed in a field assembly mode and can be repeatedly used. Has the characteristics of reasonable stress, convenient construction, environmental protection and the like.
Drawings
FIG. 1 is a three-dimensional isometric view of a poppet support; FIG. 2 is an overall three-dimensional isometric view of an attached sleeve type lifting tool; FIG. 3 is an assembled view of the attached lifting tooling and structural columns; FIG. 4 is a schematic view of the attachment sleeve type lifting tool connected to a structural column; FIG. 5 is an overall three-dimensional isometric view of the steel structure raised to a design elevation.
Description of reference numerals: a support sleeve 1; a support outer ring plate 2; a support bracket 3; a lifting frame column 4; a lifting frame web member 5; a hoisting frame cross beam 6; a structural column 7; a structural support 8; a connecting weld 9; a post-top buried plate 10; a steel structure 11; a poppet seat 12; a lifting frame 13.
Detailed Description
The following describes in detail a specific embodiment of the attached lifting tool and the construction method according to the present invention with reference to the accompanying drawings 1 to 5:
a jacket-attached lifting tool is arranged on a structural column 7 and comprises a lifting frame support 12, a lifting frame 13 and a lifting frame cross beam 6; the lifting frame support 12 comprises a support outer ring plate 2, a support sleeve 1 which is positioned at the inner ring of the support outer ring plate 2 and fixed on the structural column 7, and a support bracket 3 fixed on the support outer ring plate 2; the lifting frame 13 comprises lifting frame upright posts 4 fixed on the support bracket 3, and the lifting frame upright posts 4 are connected through lifting frame web members 5; the lifting frame beam 6 is fixed on top of the lifting frame 13.
An auxiliary sleeve type lifting construction method comprises the following steps:
firstly, the support sleeve 1, the support outer ring plate 2 and the support bracket 3 in the figure 1 are processed into a whole in a factory and transported to a construction site.
And secondly, assembling the components such as the lifting frame upright post 4, the lifting frame web member 5 and the lifting frame cross beam 6 in the figure 2 into a plane truss processed in a factory, and assembling and forming after transporting to a construction site.
Thirdly, hoisting the auxiliary sleeve type lifting tool to the structural column 7 in a manner of fig. 3, sleeving the auxiliary sleeve type lifting tool on the outer side of the mechanism support 8, and welding the support sleeve to a column top embedded plate 10 of the structural column by adopting a connecting welding line 9 in fig. 4.
Fourthly, as shown in fig. 5, the steel structure 11 is lifted to the designed elevation according to the lifting construction process, and the post-installed rod piece is connected with the support according to the design drawing requirements.
Fifthly, after all the post-installed rod pieces are completely installed, all the hoisting points are simultaneously lowered and unloaded by 10 percent according to the calculated hoisting load as a reference; in the process, the load of some hoisting points exceeds 10% of the load before unloading, or the hoisting point displacement is out of synchronization to reach 10mm, the unloading of other points is immediately stopped, and the abnormal points are unloaded independently. The process is repeated until the steel strand is loosened completely.
Sixthly, the structural rod piece is inserted into the lifting frame, so that part of the web members 5 of the lifting frame need to be cut and removed, and the upright post 4 of the lifting frame can be lifted off after being cut off from the bracket 3 of the support; the poppet seat sleeve 1 also needs to be cut into two semi-circles and then lifted off.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (7)

1. An attached sleeve type lifting construction method is characterized in that: the auxiliary sleeve type lifting tool is arranged on a structural column and comprises a lifting frame support, a lifting frame and a lifting frame cross beam; the lifting frame support comprises a support outer ring plate, a support sleeve which is positioned at the inner ring of the support outer ring plate and fixed on the structural column, and a support bracket which is fixed on the support outer ring plate; the lifting frame comprises lifting frame upright columns fixed on the bracket of the support, and the lifting frame upright columns are connected through lifting frame web members; the lifting frame cross beam is fixed at the top of the lifting frame;
the auxiliary sleeve type lifting construction method comprises the following steps: (1) a lofting stage: determining the positions and the cross-sectional forms of a support sleeve, a lifting frame, a support bracket, a lifting frame upright post, a lifting frame web member and a lifting frame cross beam of the lifting tool through three-dimensional lofting;
(2) and (3) a mechanical analysis stage: three-dimensional modeling and integral mechanical analysis of the calculation model; finite element analysis is carried out on the lifting frame support; determining the size of the section of the component;
(3) and (3) a drawing design stage: designing a processing drawing according to the size and lofting of the section of the component;
(4) and (3) a component processing stage: the support of the lifting tool is processed into a whole in a factory; a hoisting frame of the hoisting tool is processed into a truss in a factory;
(5) tool installation stage: the structure support is firstly installed, the lifting frame support is sleeved on the outer side of the structure support, and the structure support and the lifting frame support are not connected; the lifting frame upright post is welded on the bracket of the support;
(6) and (3) lifting construction stage: the internal force of the lifting frame is transmitted to the lifting frame support and then transmitted to the structural column through the column top embedded part, and the structural support does not bear the load transmitted by the lifting tool;
(7) and a lifting tool dismantling stage: after the connection of the structural rod piece and the structural support is finished, the lifter is gradually unloaded, and finally, the lifting tool starts to be dismantled when the lifting tool is in a state without external load;
(8) promote frock reinforcement and cyclic utilization stage: the cutting entrance to hoisting frame support sleeve side carries out the reinforcement, polishes leveling hoisting frame support sleeve lower extreme and hoisting frame stand cutting entrance to a cave.
2. The attached type hoisting construction method according to claim 1, wherein the three-dimensional lofting in the step (1): and (4) considering the assembling state of the lifted structure, the conditions of lifting to a designed elevation state and a rod supplementing state, and performing full-size three-dimensional lofting.
3. The attached lift construction method according to claim 1, wherein the three-dimensional modeling of the calculation model in step (2) comprises: the calculation model comprises a lifting frame support, a lifting frame cross beam and a structural column, and the influence of the structural column and the support on the lifting tool is considered.
4. The auxiliary hoisting construction method according to claim 1, wherein the hoisting frame support in the step (4) is integrally processed in a factory: the support sleeve, the outer ring plate and the bracket of the tool to be lifted are welded into a whole and transported to a construction site.
5. The jacket-type hoisting construction method according to claim 1, wherein the hoisting frame in the step (4) is processed into a truss in a factory: the hoisting frame is a quadrilateral lattice column, is processed into a plane truss in a factory, and is assembled and molded after being transported to a construction site.
6. The auxiliary sleeve type lifting construction method according to claim 1, wherein in the lifting tool dismantling stage in the step (7): after the post-installed rod pieces are completely installed, all the hoisting points are simultaneously lowered and unloaded by 10 percent according to the calculated hoisting load as a reference; in the process, the load of some hoisting points exceeds 10% of the load before unloading, or the displacement of the hoisting points is out of synchronization and reaches 10mm, the unloading of other points is immediately stopped, and the abnormal points are unloaded independently; repeating the steps until the steel strand is completely loosened; after the steel strand wires are completely loosened, the lifting frame is not under the action of external load, and the lifting tool is detached.
7. The auxiliary sleeve type lifting construction method according to claim 1, wherein in the lifting tool dismantling stage in the step (7): after the structure is installed, the structural rod pieces are inserted into the lifting frame, so that part of the web members of the lifting frame need to be cut and removed, and the lifting frame upright posts can be lifted off after being cut off from the bracket of the support; the poppet seat sleeve also needs to be cut to two semi-circles back to enable the lifting off.
CN201711345270.6A 2017-12-15 2017-12-15 Auxiliary sleeve type lifting tool and construction method Active CN108086695B (en)

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Publication number Priority date Publication date Assignee Title
CN110005210A (en) * 2019-04-16 2019-07-12 中国建筑第八工程局有限公司 The mounting device and its construction method of steel truss
CN113931078B (en) * 2021-11-26 2023-07-21 中铁宝桥(扬州)有限公司 Design analysis method of shipping tool for manufacturing large sections of steel truss girder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7607513B1 (en) * 2007-11-29 2009-10-27 Elmo Rojas Telescoping lifting hand truck with a folding platform
CN102635072A (en) * 2012-04-20 2012-08-15 上海颖川加固工程技术有限公司 Steel clamp hoop support system for bridge lift-up
JP5394334B2 (en) * 2010-06-30 2014-01-22 株式会社奥村組 Construction method of work floor for work at height
CN104265002A (en) * 2014-08-27 2015-01-07 浙江精工钢结构集团有限公司 Hoisting frame design application method of continuous truss column top hinging structure
CN106087707A (en) * 2016-07-27 2016-11-09 清华大学 A kind of accessory configurations preventing existing bridge lateral from toppling and construction method thereof
CN107386658A (en) * 2017-03-20 2017-11-24 广州珠江工程建设监理有限公司 A kind of construction method of large steel net frame integral hoisting platform

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080014028A1 (en) * 2005-03-25 2008-01-17 Faires Guy L Bracket assembly for lifting and supporting a lightweight foundation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7607513B1 (en) * 2007-11-29 2009-10-27 Elmo Rojas Telescoping lifting hand truck with a folding platform
JP5394334B2 (en) * 2010-06-30 2014-01-22 株式会社奥村組 Construction method of work floor for work at height
CN102635072A (en) * 2012-04-20 2012-08-15 上海颖川加固工程技术有限公司 Steel clamp hoop support system for bridge lift-up
CN104265002A (en) * 2014-08-27 2015-01-07 浙江精工钢结构集团有限公司 Hoisting frame design application method of continuous truss column top hinging structure
CN104265002B (en) * 2014-08-27 2016-09-07 浙江精工钢结构集团有限公司 A kind of hoisting frame design application process of continuous trusse capital articulated structure
CN106087707A (en) * 2016-07-27 2016-11-09 清华大学 A kind of accessory configurations preventing existing bridge lateral from toppling and construction method thereof
CN107386658A (en) * 2017-03-20 2017-11-24 广州珠江工程建设监理有限公司 A kind of construction method of large steel net frame integral hoisting platform

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