CN103726674A - Lattice-column dismounting method - Google Patents
Lattice-column dismounting method Download PDFInfo
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- CN103726674A CN103726674A CN201310739077.6A CN201310739077A CN103726674A CN 103726674 A CN103726674 A CN 103726674A CN 201310739077 A CN201310739077 A CN 201310739077A CN 103726674 A CN103726674 A CN 103726674A
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- lattice column
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Abstract
The invention provides a lattice-column dismounting method. Firstly, the upper portion of a lattice column to be dismounted is cut, so that the lattice column is divided into an upper column section and a lower column portion body; a chain block is arranged on the upper column section, one end of the chain block is provided with a stay cable, the other end of the chain block is provided with a pothook, the upper end of the lower column portion body is hooked by the pothook, and the chain block is tightened through the stay cable; then inclined cutting is conducted on the lower portion of the lower column portion body, so that the lower column portion body is divided into a column body middle section and a column lower section; finally, the lower end of the column body middle section is pulled sideward through a pulling rope, the pothook is gradually released downwards at the same time, and therefore the column body middle section is taken down. When the lattice column is dismounted, the chain block is used for lifting, so that impact damage to the structure caused by an existing crushing method is avoided, and meanwhile fragment high-altitude falling accidents are eliminated. Thus, because the main body of the lattice column can be used after being stored, very prominent economic benefits are obtained.
Description
Technical field
The invention belongs to the realm of building construction, relate in particular to a kind of lattice column method for dismounting.
Background technology
Present stage, the interim lattice column of great majority is removed to adopt and is cut broken method, specifically refers in a side of lattice column and sets up interim pin hand system, from top to bottom, lattice column is broken into fritter, is then deposited in place wait and moves.
The method, on the one hand, lattice column is after fragmentation, and fragment can not carry out other and utilize, and can only serve as building waste and sell off, very unfortunate; On the other hand, even if take certain damping and safety prevention measure in shattering process, but in the process of lattice column fragmentation, there is the danger of falling from high altitude in the fragment not only dropping, and shattering process to structure cause vibrations and impact, cause structure to leave potential safety hazard.
Therefore, how providing a kind of can lattice column method for dismounting safety and that can improve lattice column recycling rate be those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of lattice column method for dismounting, can guarantee the roughly integrality after lattice column dismounting, both safety, can improve again the recycling rate of lattice column.
To achieve the above object, the present invention adopts following technical scheme:
A kind of lattice column method for dismounting, comprises the steps:
The first step, cuts on the top of pre-demolition lattice column, makes described lattice column be divided into post epimere and post sub-body;
Second step arranges Chain block on described post epimere, and one end of described Chain block has drag-line, and the other end of described Chain block is provided with hook, and described hook catches on the upper end of described post sub-body, and tightens up described Chain block by described drag-line;
The 3rd step, carries out oblique cutting in the bottom of described post sub-body, makes described post sub-body be divided into post main body stage casing and post hypomere;
The 4th step, by the lower end in post main body stage casing described in pulling rope layback, progressively transfers described hook, thereby takes off described post main body stage casing, to recycle simultaneously.
Preferably, in above-mentioned lattice column method for dismounting, described lattice column comprises the web that four blocks of angle steel and some longitudinal separation along described four blocks of angle steel arrange, and described web is connected to form a hollow rectangle post by four blocks of angle steel, and described post epimere comprises at least one block of web.
Preferably, in the described first step, on the top of pre-demolition lattice column, carry out horizontal resection, the distance of the end face of lattice column is 40-60 centimetre described in the positional distance of horizontal resection.
Preferably, in described second step, described hook catches on the bottom that is positioned at the web of the top on described post sub-body.
Preferably, in described the 3rd step, the angular range of oblique cutting is 30-60 degree.
Preferably, in described the 3rd step, the angle of oblique cutting is 45 degree.
Lattice column method for dismounting provided by the invention, first cuts on the top of pre-demolition lattice column, makes described lattice column be divided into post epimere and post sub-body; On described post epimere, Chain block is set again, one end of described Chain block has drag-line, and the other end of described Chain block is provided with hook, and described hook catches on the upper end of described post sub-body, and tightens up described Chain block by described drag-line; Then in the bottom of described post sub-body, carry out oblique cutting, make described post sub-body be divided into post main body stage casing and post hypomere; Finally, by the lower end in post main body stage casing described in pulling rope layback, progressively transfer described hook, thereby take off described post main body stage casing, to recycle, it compares the method that existing lattice column fragmentation is reclaimed afterwards simultaneously, and it has the following advantages:
First: be to preserve the integrality of lattice column, make it can do secondary utilization.The whole section of lattice column for example removing made the construction interface (as later stage end well retaining wall) of required framed bent as top, permanent hole steel concrete shuttering, significantly reduced high framed bent service condition, increased the safety of construction.Also saved the input of the steel work (i iron, channel-section steel or shaped steel) of again buying for erection construction interface.Therefore, there is significant economic effect meaning.
Second: during dismounting, adopt cucurbit lifting, the impact injury of having avoided existing breaking method to cause structure.
The 3rd: safe and reliable, avoid the personnel's incident of injury that causes falling object from high altitude to produce because of fault.
The the 4th: be convenient to reclaim, reduce and stack the material disappearance causing while moving.
Accompanying drawing explanation
Lattice column method for dismounting of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 to Fig. 4 is each step structural representation of the lattice column method for dismounting of one embodiment of the invention;
In figure, 11-post epimere, 12-post main body stage casing, 13-post hypomere, 2-Chain block, 21-drag-line 22-hook, 3-pulling rope.
The specific embodiment
Below will be described in further detail lattice column method for dismounting of the present invention.
Below with reference to accompanying drawings the present invention is described in more detail, has wherein represented the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
For object of the present invention, feature are become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Metro station engineering space enclosing structure adopts all the other steel supporting forms of first road concrete support, and vertical supporting adopts lattice column form to come rest concrete support and steel support link.Top board construction to structure is complete, according to design, need to cut off lattice column.
The present embodiment discloses a kind of lattice column method for dismounting, comprises the steps:
The first step, as shown in Figure 1, cuts on the top of pre-demolition lattice column, i.e. the first cut point makes described lattice column be divided into post epimere 11 and post sub-body.Described lattice column comprises the web 102 that four blocks of angle steel 101 and some longitudinal separation along described four blocks of angle steel 101 arrange, described web 102 is connected to form a hollow rectangle post by four blocks of angle steel 101, described post epimere 11 comprises at least one block of web 102, so can be so that Chain block 2 is set.
Preferably, in above-mentioned lattice column method for dismounting, on the top of pre-demolition lattice column, carry out horizontal resection, the distance of the end face of lattice column is 40-60 centimetre described in the positional distance of horizontal resection.The position of described horizontal resection, be as far as possible close to the end face of lattice column, will guarantee to comprise a web 102 in described post epimere 11 simultaneously, so that described Chain block 2 is set on this web 102, will be conducive in addition cutting.Described in the positional distance of horizontal resection, the distance of the end face of lattice column is 40-60 centimetre, considers above-mentioned three factors and determines.
Second step as shown in Figure 2, arranges Chain block 2 on described post epimere 11, one end of described Chain block 2 has drag-line 21, the other end of described Chain block 2 is provided with hook 22, and described hook 22 catches on the upper end of described post sub-body, and tightens up described Chain block 2 by described drag-line 21.By Chain block 2 is set; not only can be laborsaving, and can realize steadily transferring of subsequent columns main body stage casing 12, be not only conducive to guard column main body stage casing 12; and can prevent that lattice column from impacting structure in cutting and decentralization process, plays the object of protection structure
Preferably, in above-mentioned lattice column method for dismounting, described hook 22 catches on the bottom that is positioned at the web 102 of the top on described post sub-body, thus can make to link up with 22 and post sub-body between connection more firm, and do not need hanging hole is additionally set yet, saved manpower and materials.
The 3rd step, as shown in Figure 3, carries out oblique cutting in the bottom of described post sub-body, i.e. the second cut point makes described post sub-body be divided into post main body stage casing 12 and post hypomere 13.
Preferably, in above-mentioned lattice column method for dismounting, the angular range of oblique cutting is 30-60 degree.This angular range can be so that cutting.In the present embodiment, the angle of oblique cutting is 45 degree.
The 4th step, as shown in Figure 4, by the lower end in post main body stage casing 12 described in pulling rope 3 laybacks, progressively transfers described hook 22, thereby takes off described post main body stage casing 12 to recycle simultaneously.One end 3 of described pulling rope is sheathed on the lower end in described post main body stage casing 12.
Compare the method that existing lattice column fragmentation is reclaimed afterwards, lattice column method for dismounting provided by the invention, during dismounting, adopt Chain block 2 liftings, the impact injury of not only having avoided existing breaking method to cause structure, eliminated the security incident that fragment falling from high altitude causes simultaneously, in addition, owing to can having preserved the main part of lattice column, it is post main body stage casing 12, can recycle this post main body stage casing 12, the whole section of lattice column for example removing made the construction interface (as later stage end well retaining wall) of required framed bent as top, permanent hole steel concrete shuttering, significantly reduced high framed bent service condition, increased the safety of construction.Also the input of having saved the steel work (i iron, channel-section steel or shaped steel) of again buying for erection construction interface, therefore, has the economic benefit of highly significant.
Claims (6)
1. a lattice column method for dismounting, is characterized in that, comprises the steps:
The first step, cuts on the top of pre-demolition lattice column, makes described lattice column be divided into post epimere and post sub-body;
Second step arranges Chain block on described post epimere, and one end of described Chain block has drag-line, and the other end of described Chain block is provided with hook, and described hook catches on the upper end of described post sub-body, and tightens up described Chain block by described drag-line;
The 3rd step, carries out oblique cutting in the bottom of described post sub-body, makes described post sub-body be divided into post main body stage casing and post hypomere;
The 4th step, by the lower end in post main body stage casing described in pulling rope layback, progressively transfers described hook, thereby takes off described post main body stage casing, to recycle simultaneously.
2. lattice column method for dismounting according to claim 1, it is characterized in that, described lattice column comprises the web that four blocks of angle steel and some longitudinal separation along described four blocks of angle steel arrange, described web is connected to form a hollow rectangle post by four blocks of angle steel, and described post epimere comprises at least one block of web.
3. lattice column method for dismounting according to claim 2, is characterized in that, in the described first step, on the top of pre-demolition lattice column, carries out horizontal resection, and the distance of the end face of lattice column is 40-60 centimetre described in the positional distance of horizontal resection.
4. lattice column method for dismounting according to claim 3, is characterized in that, in described second step, described hook catches on the bottom that is positioned at the web of the top on described post sub-body.
5. lattice column method for dismounting according to claim 1, is characterized in that, in described the 3rd step, the angular range of oblique cutting is 30-60 degree.
6. lattice column method for dismounting according to claim 5, is characterized in that, in described the 3rd step, the angle of oblique cutting is 45 degree.
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| CN201310739077.6A CN103726674B (en) | 2013-12-27 | 2013-12-27 | Lattice column method for dismounting |
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| CN201310739077.6A CN103726674B (en) | 2013-12-27 | 2013-12-27 | Lattice column method for dismounting |
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| CN103726674A true CN103726674A (en) | 2014-04-16 |
| CN103726674B CN103726674B (en) | 2016-01-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339482A (en) * | 2018-10-15 | 2019-02-15 | 上海宝钢节能环保技术有限公司 | A kind of boring method of underground flue |
| CN115110530A (en) * | 2022-08-22 | 2022-09-27 | 浙江交工集团股份有限公司 | Construction method of ultra-deep foundation pit reinforced concrete support dismantling structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01191100A (en) * | 1988-01-26 | 1989-08-01 | Toda Constr Co Ltd | Breaking and recovering method for block-shaped dismantled body |
| JP2004204506A (en) * | 2002-12-25 | 2004-07-22 | Kansai Electric Power Co Inc:The | Base rod apparatus for hoisting concrete pole, and method of cutting and recovering concrete pole using the same |
| CN101838986A (en) * | 2009-03-17 | 2010-09-22 | 上海市机械施工有限公司 | Disassembling tool type lattice column and construction method thereof |
| CN102493676A (en) * | 2011-12-20 | 2012-06-13 | 中国三冶集团有限公司结构制造安装工程公司 | Method for dismounting single-layer dome netty structure of large gas storage cabinet top system |
-
2013
- 2013-12-27 CN CN201310739077.6A patent/CN103726674B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01191100A (en) * | 1988-01-26 | 1989-08-01 | Toda Constr Co Ltd | Breaking and recovering method for block-shaped dismantled body |
| JP2004204506A (en) * | 2002-12-25 | 2004-07-22 | Kansai Electric Power Co Inc:The | Base rod apparatus for hoisting concrete pole, and method of cutting and recovering concrete pole using the same |
| CN101838986A (en) * | 2009-03-17 | 2010-09-22 | 上海市机械施工有限公司 | Disassembling tool type lattice column and construction method thereof |
| CN102493676A (en) * | 2011-12-20 | 2012-06-13 | 中国三冶集团有限公司结构制造安装工程公司 | Method for dismounting single-layer dome netty structure of large gas storage cabinet top system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339482A (en) * | 2018-10-15 | 2019-02-15 | 上海宝钢节能环保技术有限公司 | A kind of boring method of underground flue |
| CN115110530A (en) * | 2022-08-22 | 2022-09-27 | 浙江交工集团股份有限公司 | Construction method of ultra-deep foundation pit reinforced concrete support dismantling structure |
| CN115110530B (en) * | 2022-08-22 | 2024-04-26 | 浙江交工集团股份有限公司 | Reinforced concrete support dismantling structure for ultra-deep foundation pit and construction method thereof |
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| CN103726674B (en) | 2016-01-13 |
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