CN202767579U - Support in denitration steel structure - Google Patents
Support in denitration steel structure Download PDFInfo
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- CN202767579U CN202767579U CN 201220411734 CN201220411734U CN202767579U CN 202767579 U CN202767579 U CN 202767579U CN 201220411734 CN201220411734 CN 201220411734 CN 201220411734 U CN201220411734 U CN 201220411734U CN 202767579 U CN202767579 U CN 202767579U
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- denitration
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Abstract
The utility model relates to a support in a denitration steel structure. The support comprises the denitration steel structure composed of a plurality of frame columns (2) and a plurality of frame beams (4), wherein the denitration steel structure is provided with at least two steel plate shear walls (1), and the steel plate shear walls (1) are arranged on shorts shaft portions on two sides of the denitration steel structure and on a central line of a short shaft boiler. The denitration steel structure is suitable for various high supports in an industrial steel structure and various high workshops in the industrial steel structure. The shear walls are added to the denitration steel structure, so use amount of steel and foundation engineering amount of the support in the denitration steel structure are effectively reduced, the number of beam columns and supporting faces are effectively reduced, and the support is light in weight. Vertical supporting is little, so arrangement of process is convenient. The steel structure is good in shock-resistant property. The stress structure is particularly suitable for a high closed steel structure.
Description
Technical field
The utility model relates to steel supporting structure, particularly a kind of denitration steel frame construction.The structure that the utility model proposes is applicable to the high-rise support of multiple Industrial Steel structure and the high-rise factory building of multiple Industrial Steel structure.
Background technology
According to the Environmental Protection in China requirement, be coal-fired plant flue gas NO during " 12 "
XThe peak period of keypoint treatment.In present denitration design, SCR (SCR) method is to use in the industry commonplace denitration technology.In this technology, denitration generally is divided into ammonia district (or urea district) and SCR denitration reaction district, because present power plant denitration major part is that (power plant is for many years built for improvement project, do not go up the denitration facility) before, the denitration district generally be arranged in behind the stove with dedusting before the flue support or ventilator maintenance support on (minority drawer type air preheater generally is set directly at the air preheater top), denitration district reactor is arranged between boiler economizer and the air preheater, characteristics according to apparatus arrangement in the boiler steelframe, Benitration reactor is substantially disposed in the absolute altitude scope of about 30 meters to 50 meters in relative ground zero rice, denitration SCR reactor supporting steel frame not only will support the load of Benitration reactor, also to support reactor and import and export the load of flue, the technique load of denitration steelframe top braces is about about 2000 tons (take a 600MW unit as example) greatly, the denitration steelframe is arranged highly approximately 50 meters high, and horizontal span is generally one to three and strides (width is about 15 meters).For most of denitration engineerings, former boiler steelframe is not considered the denitration engineering, denitration SCR steelframe is general independent to be arranged, and does not transmit as far as possible load to former boiler steelframe, the denitration steel structure support belong to typical lateral stiffness less, vertically reach all larger high-rise steel structure supports of horizontal loading.For the denitration steelframe that the closed seal requirement is arranged, its lateral force and vertical load are larger, and the requirement of the flat side force of water resistant of denitration steelframe is higher.
In present denitration design improvement, denitration district steel structure support force structure mostly is designed to the steel structure frame braced structures, this force structure has greatly improved to the relative pure steel structure framework of the flat side force of the water resistant of high-rise steel structure, but this force structure vertical supporting is with steel still economical not (steel work is invested relative technology investment), and in the middle of the steel structure frame design process, designer's support arrangement difficulty is larger, and steel structure support easily affects technique and uses function (affecting access path etc. such as support arrangement).
The utility model content
In order to solve above-mentioned the problems of the prior art, the purpose of this utility model provides and a kind ofly can fully reduce the denitration steel structure support force structure that denitration steel bracket steel using amount can be saved the space again and can conveniently arrange.It has used for reference the characteristics of civil high storey steel plate shear force wall design, and combines with denitration denitration steel structure support stress characteristic on this basis, for the design of denitration steel structure support provides a kind of new-type frame supported steel plate shear force wall force structure arrangement.
In order to achieve the above object, the technical solution of the utility model realizes as follows: a kind of denitration steel structure support, comprise the denitration steel work that a plurality of frame columns (2) and a plurality of Vierendeel girder (4) form, described denitration steel work is provided with at least two sides steel plate shear force wall (1), and described steel plate shear force wall (1) is positioned at this minor axis place, denitration steel work both sides.
Described steel plate shear force wall (1) is provided with two steel plate shear force wall lateral columns (3).
Transverse stiffener (8) and/or vertical stiffening rib (9) are set in the described steel plate shear force wall (1).
Described steel plate shear force wall (1) adopts beam bolt and/or welding manner to be connected with described Vierendeel girder (4).
Described steel plate shear force wall (1) adopts beam bolt and/or welding manner to be connected with described frame column (2).
Also comprise the steel plate of arranging in the described steel plate shear force wall (1) from bottom to top.
Described denitration steel work is provided with horizontal support (5) and/or vertical supporting (7).
The beneficial effects of the utility model:
The utility model can reduce the whole steel using amount of denitration steel structure support and Foundation Design amount effectively by add shear wall in the denitration structure; Can effectively reduce beam column and supporting surface, make whole framework slim and graceful; Vertical support is less, makes things convenient for the layout of technique; Steel frame construction has good shock resistance.For the high-rise steel structure that closed seal is arranged, this force structure is particularly applicable.
Description of drawings
The layout schematic diagram of Fig. 1 the utility model denitration steel structure support;
The long axis direction facade of Fig. 2 the utility model denitration steel structure support is arranged schematic diagram;
The short-axis direction facade of Fig. 3 the utility model denitration steel structure support is arranged schematic diagram;
Fig. 4 (a) is shear wall in the utility model denitration steel structure support and the bolt connected mode schematic diagram between the beam column;
Fig. 4 (b) is shear wall in the utility model denitration steel structure support and the welding connecting mode schematic diagram between the beam column.
Wherein, 1-steel plate shear force wall, 2-frame column, 3-steel plate shear force wall lateral column, 4-Vierendeel girder, 5-horizontal support, 6-secondary beam, 7-vertical supporting, 8 steel plate shear force wall lateral stiffenings help 9-steel plate shear force wall vertically to put more energy into to help
The specific embodiment
The utility model principle
According to technology arrangement, generally at denitration steel structure support top separate unit stove two reactors and corresponding import and export flue are set.Analyzing the denitration steel structure support arranges and stressing conditions, the process equipment load is heavy on the support, area is large, not only at a top of the trellis larger vertical load is arranged, because equipment will keep relative stability, its horizontal loading and seismic load are also very large, add equipment itself and steel bracket wind load factor, the lateral force from dedusting to the boiler direction that denitration steel structure support short axial is subject to becomes the principal element of left and right sides steel work steel using amount.
Take separate unit 600MW unit denitration steel structure support as example, generally bear denitration vertical load about 2000 tons (approximately 1400 tons of the loads such as the reactor body that wherein two reactors are corresponding, dust stratification, catalyzer on the steel structure support, approximately 600 tons of the loads such as flue body corresponding to flue, dust stratification are imported and exported in denitration), approximately 45 tons of wind load corresponding to two reactors and air flue equipment are also born on denitration steel structure support top, and the horizontal thrust that access flue and reactor body form the denitration steelframe is approximately about 50 tons.Not only the top vertical load is larger for steel structure support, and its top horizontal loading also more conventional steel structure support is much larger.When adopting existing steel work-support frame structure System Design denitration steel structure support, its level and vertical supporting steel using amount large (generally account for the overall steel using amount of steel structure support about 1/3), steel using amount is uneconomical and support arrangement easy and state space collides, in addition, be supported in produce in factory and the field-mounted process because of welding, bolt is staggered seems more loaded down with trivial details.Adopt steel plate shear force wall to be located at the both sides of the denitration steel work minor axis of frame column and Vierendeel girder composition in the utility model, can effectively address these problems.
According to the correlation computations content of China's " Technical Specification for Steel Structure of Tall Buildings " appendix four relevant for steel plate wall, in addition, domestic research to steel plate wall has certain progress, such as " science and technology and engineering " 28 phases in 2011, steel frame-punching steel plate shear wall performance evaluation, Guo Yanlin, Chen Guodong, Miu Youwu etc. are to non-stiffener, cross-stiffened plate and the stiffener shear wall structure of intersecting have been carried out comparatively deep research at the shear behavior under the unidirectional static load and the Hysteresis Behavior under the cyclic reverse loading, and by the Frequency Cyclic Static Loading experimental study to six 1:3 steel plate shear force wall models, further disclosed the ultimate bearing capacity of steel plate wall, ductility and Hysteresis Behavior are for steel plate shear force wall stress performance and relevant design provide relevant foundation.
To the denitration steel structure support, can consider to adopt thin plate shear wall (embedded steel plate flakiness ratio λ 〉=250), stiffening rib is set to improve the elastic stiffness of thin plate at the thin plate shear wall in addition, and it is had stablize full hysteresis loop, overcome " pinching " phenomenon of steel sheet hysteresis loop in elastic-plastic range.
Ventilator overhauled support (or stove rear pass maintenance support) top after the denitration steelframe generally was arranged in stove.Process equipment generally is arranged symmetrically with along the boiler center line behind the stove, shown in Figure 1 be plane framework supporting structure on the utility model horizontal direction, shown in Figure 2 be the utility model long axis direction upper frame supports structure, shown in Figure 3 be the utility model short-axis direction upper frame supports steel plate shear wall structure.
In the middle of existing denitration steel bracket design, the denitration steel structure support steel using amount of a 300MW unit is roughly about 550 tons, the denitration steel structure support steel using amount of 600MW unit is generally about 850 tons, employing is with the steel structure support of steel plate shear force wall, steel structure support steel column cross section reduces obviously that (existing denitration steel structure support steel column adopts HM450 * 300 o'clock, adopt the utility model technology then to adopt HM400 * 300 shaped steel to get final product), supporting steel using amount also can obviously reduce, under the equal conditions, the denitration steel work steel using amount of separate unit 300MW unit only is about 455 tons, save steel using amount about 17%, the denitration steel work steel using amount of separate unit 600MW unit only is about 654 tons, can save steel using amount about 23%.
Embodiment 1
Denitration steel structure support in the specific embodiment of the present utility model, comprise steel plate shear force wall 1, frame column 2 and Vierendeel girder 4, steel plate shear force wall 1 is located at the both sides of the denitration steel work minor axis of described frame column 2 and described Vierendeel girder 4 compositions, and shear wall 1 is positioned on the boiler center line.Near the boiler center line and ventilator maintenance support both sides generally do not have the requirement of technique maintenance, based on this, this utility model is arranged in boiler center line and denitration steelframe minor axis both sides as shown in Figure 1 with steel plate shear force wall, take into full account the requirements such as process equipment layout and maintenance, avoided process equipment and space for maintenance.Steel plate shear force wall 1 junction steel plate shear wall lateral column 3 is specifically set the span design that the shear wall lateral column is convenient to shear wall according to steel plate shear force wall.Steel plate shear force wall 1 interior transverse stiffener 8 and/or the vertical stiffening rib 9 of arranging.Steel plate shear force wall 1 adopts beam bolt and/or welding manner to be connected with Vierendeel girder 4.Shown in Fig. 4 (a), Fig. 4 (b), steel plate shear force wall 1 adopts beam bolt and/or welding manner to be connected with described frame column 2.The lateral force of steel plate shear force wall 1 main opposing denitration steelframe, denitration steelframe vertical supporting is tried one's best less if do not establish at short-axis direction.Also comprise the steel plate of arranging continuously in the steel plate shear force wall 1 from bottom to top, the mechanical characteristic of steel plate wall integral body is similar to the affixed vertical cantilever compound beam in bottom: the vertical edges member is equivalent to the edge of a wing, embedded steel plate is equivalent to web, but the horizontal edge member then Approximate Equivalent be horizontal reinforcement ribs.The denitration steel structure support is provided with horizontal support 5 and/or vertical supporting 7.
The utility model comprises steel plate shear force wall 1, frame column 2 and Vierendeel girder 4, it is characterized in that, steel plate shear force wall 1 is located at the both sides of the denitration steel work minor axis of described frame column 2 and described Vierendeel girder 4 compositions, denitration steel structure support relative altitude is generally about 50 meters, plane framework supporting structure should arrange every about 7 meters that one deck can referring to Fig. 1, make the slenderness ratio of frame column 2 in suitable scope.Because the denitration steelframe is subjected to process technology limit sometimes, subspan is larger, can utilize the calculated length of framework horizontal support 5 transmission horizontal forces and minimizing Vierendeel girder 4 and reduce relative storey displacement.
Between general 30 meters to 50 meters of the utility model denitration steel structure support major axis side length, generally about 15 meters, general steelframe major axis is to rigidity much larger than short axial rigidity for minor axis side width.The lateral force that denitration steelframe short axial structure is subject to also much larger than major axis to lateral force.According to These characteristics, the denitration steelframe can be arranged frame supported-steel plate shear wall structure as shown in Figure 3 at short axial boiler center line and steelframe both sides.To arranging frame support structure such as Fig. 2, be arranged on boiler side and dedusting side such as Fig. 1 both sides at major axis, vertical supporting 7 transmits vertical load and lowers the Vierendeel girder calculated length and distribute lateral force.This structure light plate shear wall 1 is main lateral resistant member, and the vertical supporting 7 main vertical loads that transmit have also been assisted the effect of opposing lateral force and few setting of trying one's best to frame column 2.Steel plate shear force wall 1 adopts beam bolt and/or welding manner to be connected with described Vierendeel girder 4, and steel plate shear force wall 1 adopts beam bolt and/or welding manner to be connected with described frame column 2.Each steel plate shear force wall Unit 1 is made of embedded steel plate and vertical edges member (member 2 and member 3, post or vertical stiffening rib, not shown), horizontal edge member (member 4, beam or horizontal stiffening rib, not shown) in the utility model.When steel plate is arranged continuously along structure, namely form steel plate shear wall structure from bottom to top.Steel plate shear force wall has larger elasticity just to look rigidity, large deformation ability and good plastic property, the stable performances such as hysteretic characteristic, and its building arrange to save space, short construction period, cost economic, and is especially obvious in the high intensity Zone advantage.
Claims (7)
1. denitration steel structure support, comprise the denitration steel work that a plurality of frame columns (2) and a plurality of Vierendeel girder (4) form, it is characterized in that, described denitration steel work is provided with at least two sides steel plate shear force wall (1), and described steel plate shear force wall (1) is positioned at this minor axis place, denitration steel work both sides.
2. denitration steel structure support as claimed in claim 1 is characterized in that, described steel plate shear force wall (1) is provided with two steel plate shear force wall lateral columns (3).
3. denitration steel structure support as claimed in claim 1 is characterized in that, transverse stiffener (8) and/or vertical stiffening rib (9) are set in the described steel plate shear force wall (1).
4. denitration steel structure support as claimed in claim 1 is characterized in that, described steel plate shear force wall (1) adopts beam bolt and/or welding manner to be connected with described Vierendeel girder (4).
5. denitration steel structure support as claimed in claim 1 is characterized in that, described steel plate shear force wall (1) adopts beam bolt and/or welding manner to be connected with described frame column (2).
6. denitration steel structure support as claimed in claim 1 is characterized in that, also comprises the steel plate of arranging in the described steel plate shear force wall (1) from bottom to top.
7. denitration steel structure support as claimed in claim 1 is characterized in that, described denitration steel work is provided with horizontal support (5) and/or vertical supporting (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411734 CN202767579U (en) | 2012-08-17 | 2012-08-17 | Support in denitration steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411734 CN202767579U (en) | 2012-08-17 | 2012-08-17 | Support in denitration steel structure |
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| Publication Number | Publication Date |
|---|---|
| CN202767579U true CN202767579U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220411734 Expired - Lifetime CN202767579U (en) | 2012-08-17 | 2012-08-17 | Support in denitration steel structure |
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| CN (1) | CN202767579U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787650A (en) * | 2012-08-17 | 2012-11-21 | 中国大唐集团环境技术有限公司 | Support with denitration steel structure |
| CN104563553A (en) * | 2015-01-21 | 2015-04-29 | 中国电力工程顾问集团华东电力设计院有限公司 | Prepositioned turbogenerator room combined with denitration steel structure and arranged on high position |
| CN109610640A (en) * | 2018-12-29 | 2019-04-12 | 中国人民解放军63921部队 | A kind of portal-rigid frames connection structure based on combined column limb |
-
2012
- 2012-08-17 CN CN 201220411734 patent/CN202767579U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787650A (en) * | 2012-08-17 | 2012-11-21 | 中国大唐集团环境技术有限公司 | Support with denitration steel structure |
| CN102787650B (en) * | 2012-08-17 | 2015-05-27 | 中国大唐集团环境技术有限公司 | Support with denitration steel structure |
| CN104563553A (en) * | 2015-01-21 | 2015-04-29 | 中国电力工程顾问集团华东电力设计院有限公司 | Prepositioned turbogenerator room combined with denitration steel structure and arranged on high position |
| CN104563553B (en) * | 2015-01-21 | 2017-02-22 | 中国电力工程顾问集团华东电力设计院有限公司 | Prepositioned turbogenerator room combined with denitration steel structure and arranged on high position |
| CN109610640A (en) * | 2018-12-29 | 2019-04-12 | 中国人民解放军63921部队 | A kind of portal-rigid frames connection structure based on combined column limb |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: CHINA DATANG GROUP ENVIRONMENT TECHNOLOGY CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
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| CX01 | Expiry of patent term |