CN102493676A - Method for dismounting single-layer dome netty structure of large gas storage cabinet top system - Google Patents
Method for dismounting single-layer dome netty structure of large gas storage cabinet top system Download PDFInfo
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- CN102493676A CN102493676A CN2011104316334A CN201110431633A CN102493676A CN 102493676 A CN102493676 A CN 102493676A CN 2011104316334 A CN2011104316334 A CN 2011104316334A CN 201110431633 A CN201110431633 A CN 201110431633A CN 102493676 A CN102493676 A CN 102493676A
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Abstract
The invention relates to a method for dismounting a single-layer dome netty structure of a large gas storage cabinet top system. A support-free annular dismounting method is adopted. The method comprises the concrete steps as follows: (1) dismounting an accessory structure of the cabinet top system; (2) arranging a flexible stay cable for enhancing the stability of a cabinet top main structure among a cabinet top plate, a cabinet top beam and an upright post; (3) dividing the cabinet top plate and the cabinet top beam into a plurality of annuluses by taking the center of a cabinet top as the center of a circle, then, dividing the annuluses into a plurality of cell blocks, and dismounting all the cell blocks from the center of the cabinet top to an outer ring direction; (4) enabling the flexible stay cable to gradually move from a fixed point of the cabinet top system to a part of an outer ring, which is not dismounted, in the process of dismounting the cell blocks of the cabinet top plate and the cabinet top beam; and finally, dismounting a leveling support and a cabinet top outer ring beam. By using the method, a large-span single-layer dome netty structure can be dismounted without using large hoisting equipment and a large number of measure supports; and the method is simple, effective, economic and safe and can be widely applied to the dismounting of structures similar to the single-layer dome netty structure.
Description
Technical field
The present invention relates to a kind of individual layer dome net structure method for dismounting, particularly relate to a kind of rubber diaphragm-sealed accumulator cabinet and fluid seal gas holder cabinet top system method for dismounting.
Background technology
The developing history in rubber diaphragm-sealed accumulator cabinet and fluid seal gas holder year surplus industries such as city gas, metallurgy, chemical industry, colliery existing 20 plays an important role, and wherein the part gas storage holder arrives application life, needs to remove to transform.Characteristics such as the type gas storage holder cabinet top system is an individual layer dome net structure, and it is big to have weight, and span is big, and construction height is big, this brings bigger difficulty to dismounting.
Rubber membrane sealed type, fluid seal gas holder cabinet top method for dismounting mainly contain at present:
1) setting up all round victory scaffold method removes; 2) vertically the itemize method is removed.
Set up all round victory scaffold method and be meant that mainly in cabinet, setting up full hall scaffold supports cabinet top system, after cabinet top system is disintegrated one by one, removes with large lifting equipment again.Because the cabinet top area is big, highly big, the time of setting up is longer, needs great amount of manpower and measure, and cost can be higher.
Vertically the itemize method is removed and is meant that in cabinet, setting up measure stent support cabinet pushes up the centre, removes cabinet top system with the vertical itemize of large lifting equipment symmetry again, and this kind method is comparatively common; But cost is higher; When removing last several cabinet roof construction spares, be prone to unstability, potential safety hazard is bigger.
Summary of the invention
The purpose of this invention is to provide a kind of large-scale gas storage holder cabinet top system individual layer dome net structure method for dismounting, this method adopts does not have the no crane method of support, simple to operate, effective, economy, safety.
For realizing above-mentioned purpose, the present invention adopts following technical scheme to realize:
System individual layer dome net structure method for dismounting in a kind of large-scale gas storage holder cabinet top adopts not have and supports the method that ring-type is loose and torn open, and concrete steps are following:
1) cabinet top system's accessory structure such as cowl, leveling system, aisle, cabinet top are removed;
2) the flexible tiltedly zip that cabinet top agent structure stability is not removed in reinforcing is set between cabinet top board, cabinet back timber and column;
3) be the center of circle with center, cabinet top, cabinet top board, cabinet back timber divided be slit into a plurality of endless belt, again endless belt is divided into a plurality of cell blocks, remove each cell block to the outer shroud direction by cabinet top core;
4) in the cell block demolishing process of cabinet top board, cabinet back timber, the fixed point of flexible tiltedly zip system on the cabinet top is not removed part to outer shroud gradually and is moved; Remove leveling support and cabinet top outer-ring beam at last.
Compared with prior art, the invention has the beneficial effects as follows:
This method is not used large lifting equipment, does not adopt a large amount of measure supports, and promptly dismountable wide span single layer dome net structure is a kind of simple, effective, economic, safe method for dismounting; Greatly reduce cost of production, saved manual work, simple to operate, effective, safety.Can be widely used in the cancellated dismounting of similar individual layer dome.
Description of drawings
Fig. 1 is a gas storage holder structure elevation of the present invention;
Fig. 2 is that system endless belt in gas storage holder cabinet of the present invention top is cut apart 1/4 floor map.
The specific embodiment
Like Fig. 1, shown in Figure 2, the cabinet roof construction is removed part and is comprised: cowl 1, flexible suspension cable 2, cabinet back timber 3, cabinet top outer-ring beam 6, column 5, leveling support 4, cabinet base plate 7, cabinet top board 8.
System individual layer dome net structure method for dismounting in a kind of large-scale gas storage holder cabinet top adopts not have and supports the method that ring-type is loose and torn open, and concrete steps are following:
1) system accessory structure in cabinet top is removed; System accessory structure in cabinet top comprises cowl 1, aisle 10, cabinet top, leveling system 9, and at first removing the accessory structure main purpose is in order to alleviate the weight of cabinet top system, to guarantee the uniformity that system load in cabinet top distributes.
2) flexible tiltedly zip 2 is set between cabinet top board 8, cabinet back timber 3 and column 5; Flexible tiltedly zip 2 adopts wire rope, originates to removing the wire rope that leveling system 9 removes, and the layout quantity of wire rope and particular location can push up overall loading condition according to cabinet and adjust.It is to increase the not stability and the automatic adjustment among a small circle of load of DEVANNING roof construction that the flexible tiltedly main purpose of zip 2 is set, and prevents that local suspension centre is stressed excessive.
3) be the center of circle with center, cabinet top, cabinet top board 8, cabinet back timber 3 are divided and be slit into a plurality of endless belt, again endless belt is divided into a plurality of cell blocks, remove each cell block to the outer shroud direction by cabinet top core; Cabinet back timber 3 and cabinet top board 8 directly are scattered on the cabinet base plate 7.It is a stable structure cell cube forever that this longspan structure does not outwards have the part that the method for tearing open of support loosing mainly do not remove from dome structure by the center, and computational analysis through science and computer simulation sum up out again.Owing to remove around the gas storage holder, therefore can guarantee in cabinet top system demolishing process safety to surrounding environment.
4) in the cell block demolishing process of cabinet top board 8, cabinet back timber 3, the fixed point of flexible tiltedly zip 2 system on the cabinet top is not removed part to outer shroud gradually and is moved; Remove leveling support 4 and cabinet top outer-ring beam 6 at last.
This method mainly adopts does not have the method that ring-type is loose and torn open that supports; Do not establish support system before promptly removing; Remove cabinet top system by the center to the progressively diffusing method of tearing open of outer shroud direction, this method is not used large lifting equipment, does not adopt a large amount of measure supports; Being dismountable wide span single layer dome net structure, is a kind of simple, effective, economic, safe method for dismounting.Can be widely used in the cancellated dismounting of similar individual layer dome.
Claims (1)
1. one kind large-scale gas storage holder cabinet top system individual layer dome net structure method for dismounting is characterized in that, adopts not have and supports the method that ring-type is loose and torn open, and concrete steps are following:
1) system accessory structure in cabinet top is removed;
2) the flexible tiltedly zip that cabinet top agent structure stability is not removed in reinforcing is set between cabinet top board, cabinet back timber and column;
3) be the center of circle with center, cabinet top, cabinet top board, cabinet back timber divided be slit into a plurality of endless belt, again endless belt is divided into a plurality of cell blocks, remove each cell block to the outer shroud direction by cabinet top core;
4) in the cell block demolishing process of cabinet top board, cabinet back timber, the fixed point of flexible tiltedly zip system on the cabinet top is not removed part to outer shroud gradually and is moved; Remove leveling support and cabinet top outer-ring beam at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110431633.4A CN102493676B (en) | 2011-12-20 | 2011-12-20 | Method for dismounting single-layer dome netty structure of large gas storage cabinet top system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110431633.4A CN102493676B (en) | 2011-12-20 | 2011-12-20 | Method for dismounting single-layer dome netty structure of large gas storage cabinet top system |
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| CN102493676A true CN102493676A (en) | 2012-06-13 |
| CN102493676B CN102493676B (en) | 2014-04-16 |
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| CN201110431633.4A Active CN102493676B (en) | 2011-12-20 | 2011-12-20 | Method for dismounting single-layer dome netty structure of large gas storage cabinet top system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726674A (en) * | 2013-12-27 | 2014-04-16 | 上海建工二建集团有限公司 | Lattice-column dismounting method |
| CN104775625A (en) * | 2015-03-31 | 2015-07-15 | 天津二十冶建设有限公司 | Construction method for hoisting double rows of tank top beams synchronously |
| CN107543025A (en) * | 2016-06-28 | 2018-01-05 | 五冶集团上海有限公司 | A kind of gas chamber shell dome Demolition Construction method |
| CN109538921A (en) * | 2018-11-20 | 2019-03-29 | 中国三冶集团有限公司 | Gas chamber piston system hangs method for dismounting under a kind of accident condition |
Citations (5)
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| GB415677A (en) * | 1933-04-20 | 1934-08-30 | Escher Wyss Maschf Ag | Improvements in and relating to dry gasometers |
| JPH0718743A (en) * | 1993-06-29 | 1995-01-20 | Maeda Corp | Construction method for large span domelike roof |
| JP2003026285A (en) * | 2001-07-16 | 2003-01-29 | Mitsubishi Heavy Ind Ltd | Gas holder and coating method of inner surface gas holder |
| CN101571230A (en) * | 2009-05-26 | 2009-11-04 | 中冶实久建设有限公司 | Environment-friendly demounting method of gas tank |
| CN101684885A (en) * | 2008-09-27 | 2010-03-31 | 中冶东北建设有限公司结构制造安装工程公司 | Method for dismounting tank top system of thin oil sealing-type dry-type gas tank |
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2011
- 2011-12-20 CN CN201110431633.4A patent/CN102493676B/en active Active
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| GB415677A (en) * | 1933-04-20 | 1934-08-30 | Escher Wyss Maschf Ag | Improvements in and relating to dry gasometers |
| JPH0718743A (en) * | 1993-06-29 | 1995-01-20 | Maeda Corp | Construction method for large span domelike roof |
| JP2003026285A (en) * | 2001-07-16 | 2003-01-29 | Mitsubishi Heavy Ind Ltd | Gas holder and coating method of inner surface gas holder |
| CN101684885A (en) * | 2008-09-27 | 2010-03-31 | 中冶东北建设有限公司结构制造安装工程公司 | Method for dismounting tank top system of thin oil sealing-type dry-type gas tank |
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| 罗尧治等: "预应力拉索网格结构的工程应用", 《第十届空间结构学术会议论文集 》, 1 December 2002 (2002-12-01), pages 764 - 771 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726674A (en) * | 2013-12-27 | 2014-04-16 | 上海建工二建集团有限公司 | Lattice-column dismounting method |
| CN103726674B (en) * | 2013-12-27 | 2016-01-13 | 上海建工二建集团有限公司 | Lattice column method for dismounting |
| CN104775625A (en) * | 2015-03-31 | 2015-07-15 | 天津二十冶建设有限公司 | Construction method for hoisting double rows of tank top beams synchronously |
| CN104775625B (en) * | 2015-03-31 | 2017-01-18 | 中冶天工集团天津有限公司 | Construction method for hoisting double rows of tank top beams synchronously |
| CN107543025A (en) * | 2016-06-28 | 2018-01-05 | 五冶集团上海有限公司 | A kind of gas chamber shell dome Demolition Construction method |
| CN109538921A (en) * | 2018-11-20 | 2019-03-29 | 中国三冶集团有限公司 | Gas chamber piston system hangs method for dismounting under a kind of accident condition |
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| Publication number | Publication date |
|---|---|
| CN102493676B (en) | 2014-04-16 |
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Effective date of registration: 20140821 Address after: 114039 Anshan province Liaoning City Mountain Road No. 105 building materials Patentee after: CHINA THREE METALLURGICAL GROUP CO., LTD. Address before: 114000 Anshan province Liaoning City Tiedong Oi Kwan Street No. 1 Patentee before: Structure Manufacturing & Building Company of China Third Metallurgical Group Co.,Ltd. |