CN104088470B - A kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault - Google Patents
A kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault Download PDFInfo
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- CN104088470B CN104088470B CN201410310627.7A CN201410310627A CN104088470B CN 104088470 B CN104088470 B CN 104088470B CN 201410310627 A CN201410310627 A CN 201410310627A CN 104088470 B CN104088470 B CN 104088470B
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Abstract
The present invention relates to the cancellated replacing field of individual layer dome, particularly relate to a kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault, it is characterized in that, with former residual oil in tank as fetal membrane, copy new residual oil in tank, realize the cancellated high-altitude of individual layer dome to copy, its concrete operation step is as follows: 1) unloading operation, removes the top board of former tank deck, insulation layer and related accessories; 2) Guyuan tank deck skeleton is added; 3) with former residual oil in tank for fetal membrane and operating platform, copy new residual oil in tank; 4) by new residual oil in tank as construction operation platform, remove former residual oil in tank, outwards divide ring to remove without the loose shape of support by centre; 5) new tank deck plate, insulation layer and annex are installed.Compared with prior art, the invention has the beneficial effects as follows: the method is without the need to a large amount of measure supports and the preparation of long period, and namely the residual oil in tank of the circular steel storage tank of replaceable large-scale vertical, can be widely used in the cancellated replacing of similar individual layer dome.
Description
Technical field
The present invention relates to the cancellated replacing field of individual layer dome, particularly relate to a kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault.
Background technology
Certain petro-chemical corporation's oil storage tank generation Lighting-blast casualty, tank deck cage construction generation moderate finite deformation, through being expounded through peer review, need change tank deck.This kind of oil storage tank belongs to vertical cylinder steel storage tank, stack shell forms primarily of different-thickness steel plate, without other support frames such as steel columns, residual oil in tank is fixed arch roof construction, belong to individual layer dome net structure, have the features such as weight is large, span is large, construction height is large, this changes to tank deck and brings larger difficulty.
The analysis of construction thinking, should first remove impaired residual oil in tank, then install new residual oil in tank, usually take two kinds of construction methods routinely.One method first in tank, sets up measure stent support tank deck, falls apart and tear former residual oil in tank open, and then loose Anxin residual oil in tank, and this method need adopt a large amount of measure support; Another kind method is fallen after rise old tank deck entirety, then adopt water-float upward erection method, air supporting upright method of hull section construction integral installation tank deck system, and this method also needs to adopt a large amount of supporting facility, as floating plate, water and sealing device etc.It is longer all to there is the preparation time in these two kinds of methods, complicated operation, and cost is higher, and grade long in time limit is not enough.
Summary of the invention
The object of this invention is to provide a kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault, be that new residual oil in tank is copied in interim fetal membrane high-altitude with former tank deck, thus reach and change tank deck object, without the need to floating plate, without the need to a large amount of measure support, and time is shorter in Renewal process.
For achieving the above object, the present invention realizes by the following technical solutions:
A replacing construction method for Vertical Steel Oil Tank storage tank annular vault, with former residual oil in tank as fetal membrane, copies new residual oil in tank, and realize the cancellated high-altitude of individual layer dome and copy, its concrete operation step is as follows:
1) unloading operation, removes the top board of former tank deck, insulation layer and related accessories, and the order of removing top board divides ring to remove from inside to outside, and the deadweight of former tank deck residue is not more than the half of former tank deck skeleton supporting capacity;
2) add Guyuan tank deck skeleton, original supporting capacity can be kept;
3) with former residual oil in tank for fetal membrane and operating platform, copy new residual oil in tank, in work progress, the newly-increased corresponding position of load is no more than the load of former tank deck all the time;
4) by new residual oil in tank as construction operation platform, remove former residual oil in tank, outwards divide ring to remove without the loose shape of support by centre;
5) install new tank deck plate, insulation layer and annex, new tank deck plate ecto-entad divides ring to install.
Compared with prior art, the invention has the beneficial effects as follows:
The method is without the need to a large amount of measure supports and the preparation of long period, the i.e. residual oil in tank of the circular steel storage tank of replaceable large-scale vertical, be a kind of simple, effective, economic, safe construction method, the cancellated replacing of similar individual layer dome can be widely used in.
Accompanying drawing explanation
Fig. 1 is the elevation of the Renewal process of Vertical Steel Oil Tank storage tank annular vault of the present invention;
Fig. 2 is Vertical Steel Oil Tank storage tank annular vault 1/4 plan view of the present invention.
In figure: the new tank deck plate of 3-former tank deck skeleton 4-former tank deck plate 5-new tank deck skeleton 6-at the bottom of 1-tank skin 2-tank
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
The replacing construction method of vertical circular steel storage tank tank deck of the present invention is that copy new residual oil in tank, realize the cancellated high-altitude of individual layer dome and copy, its concrete operation step is as follows with former residual oil in tank as fetal membrane:
1) unload, former residual oil in tank is made up of former tank deck skeleton 3, former tank deck plate 4 etc., former tank deck plate and former tank deck skeleton gravity load respectively account for 50% of tank deck gross weight, for ensureing that overall load is no more than the principle of former tank deck total load, namely the supporting capacity of former tank deck skeleton 3 is no more than, need not calculate in detail in tank deck skeleton 3 stress performance situation, make former tank deck skeleton 3 can meet force request all the time, the principle of removing former tank deck plate 4 divides ring to remove from inside to outside;
2) add Guyuan tank deck skeleton 3, original supporting capacity can be kept, keep former tank deck skeleton to the ability to bear of new peace component load as far as possible;
3) new tank deck skeleton 5 is installed, sees Fig. 1, Fig. 2, with former tank deck skeleton 3 as fetal membrane, copy new tank deck skeleton 5; Press the netted structure feature of individual layer dome, new tank deck skeleton 5 ecto-entad divides ring to install; Press open shell theory, will form independently stable knot system after every ring is formed, self just can bear a constant load, also just alleviates the External Force Acting to former tank deck skeleton 3.With former tank deck skeleton 3 as fetal membrane, make the accurate positioning of new tank deck skeleton 5, former tank deck skeleton 3 again can as the construction operation platform of new tank deck skeleton 5 simultaneously, install for high-altitude and create good construction environment, the corresponding position of newly increased load in work progress, should be kept to be no more than the load of former tank deck all the time;
4) by new residual oil in tank as construction operation platform, remove former tank deck skeleton 3, dismounting condition wants common netted structural demolition condition to get well, and removes by outwards being divided removing without supporting loose shape of ring by centre;
5) install new tank deck plate, insulation layer and annex, new tank deck plate ecto-entad divides ring to install.
The inventive method adopts individual layer dome cancellated high-altitude fetal membrane reproducible methods to install to change the construction method on top with individual layer dome net structure without supporting the technology of tearing open of the faling apart high-altitude that combined.The method is ingenious utilizes the netted structure feature of individual layer dome, by former tank deck as fetal membrane, takes loose shape Method for Installation to be copied into new tank deck.By new tank deck skeleton, former tank deck skeleton operating platform each other when without the need to additionally increasing working measure, complete the replacing of tank deck.Install owing to have employed fetal membrane reproducible methods, component accurate positioning, quality is high, and speed of application is fast, owing to adopting individual layer dome net structure loose without support, makes dismounting some work more safe and efficient.The integrated use of these two technology, make dome net structure high-altitude change top technology more simply, more easily operate, accurate positioning quality is more easily guaranteed, safer.
Claims (1)
1. a replacing construction method for Vertical Steel Oil Tank storage tank annular vault, is characterized in that, with former tank deck as fetal membrane, copies new residual oil in tank, and realize the cancellated high-altitude of individual layer dome and copy, its concrete operation step is as follows:
1) unloading operation, removes the top board of former tank deck, insulation layer and annex, and the order of removing top board divides ring to remove from inside to outside, and the deadweight of former tank deck residue is not more than the half of former tank deck skeleton supporting capacity;
2) add Guyuan tank deck skeleton, make it keep original supporting capacity;
3) with former tank deck for fetal membrane and operating platform, copy new residual oil in tank, in work progress, the newly-increased corresponding position of load is no more than the load of former tank deck all the time;
4) by new residual oil in tank as construction operation platform, remove former tank deck, outwards divide ring to remove without the loose shape of support by centre;
5) install new tank deck plate, insulation layer and annex, new tank deck plate ecto-entad divides ring to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310627.7A CN104088470B (en) | 2014-07-01 | 2014-07-01 | A kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310627.7A CN104088470B (en) | 2014-07-01 | 2014-07-01 | A kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault |
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| Publication Number | Publication Date |
|---|---|
| CN104088470A CN104088470A (en) | 2014-10-08 |
| CN104088470B true CN104088470B (en) | 2016-01-06 |
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| CN201410310627.7A Active CN104088470B (en) | 2014-07-01 | 2014-07-01 | A kind of replacing construction method of Vertical Steel Oil Tank storage tank annular vault |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111794549B (en) * | 2020-07-07 | 2021-11-09 | 中国化学工程第十四建设有限公司 | Construction method for lowering height and changing bottom of vertical storage tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2933806Y (en) * | 2006-08-11 | 2007-08-15 | 王学斌 | Methane tank detachable steel-wood mould |
| CN202882185U (en) * | 2012-11-14 | 2013-04-17 | 淮海工学院 | Ribbed-type rigid grid cable dome |
| CN103061506A (en) * | 2012-12-28 | 2013-04-24 | 中国华冶科工集团有限公司 | Construction method of steel structure dome |
| CN103061412A (en) * | 2013-01-01 | 2013-04-24 | 北京工业大学 | Method for constructing stiff supporting dome structure |
| CN203487843U (en) * | 2013-09-25 | 2014-03-19 | 泰富重工制造有限公司 | Heat insulation type round stock ground |
-
2014
- 2014-07-01 CN CN201410310627.7A patent/CN104088470B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2933806Y (en) * | 2006-08-11 | 2007-08-15 | 王学斌 | Methane tank detachable steel-wood mould |
| CN202882185U (en) * | 2012-11-14 | 2013-04-17 | 淮海工学院 | Ribbed-type rigid grid cable dome |
| CN103061506A (en) * | 2012-12-28 | 2013-04-24 | 中国华冶科工集团有限公司 | Construction method of steel structure dome |
| CN103061412A (en) * | 2013-01-01 | 2013-04-24 | 北京工业大学 | Method for constructing stiff supporting dome structure |
| CN203487843U (en) * | 2013-09-25 | 2014-03-19 | 泰富重工制造有限公司 | Heat insulation type round stock ground |
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| CN104088470A (en) | 2014-10-08 |
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