CN104775649A - Shock-resistant steel-bar concrete structure side coal bunker - Google Patents
Shock-resistant steel-bar concrete structure side coal bunker Download PDFInfo
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- CN104775649A CN104775649A CN201510190983.4A CN201510190983A CN104775649A CN 104775649 A CN104775649 A CN 104775649A CN 201510190983 A CN201510190983 A CN 201510190983A CN 104775649 A CN104775649 A CN 104775649A
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Abstract
The invention provides a shock-resistant steel-bar concrete structure side coal bunker which comprises frame columns and frame beams. The shock-resistant steel-bar concrete structure side coal bunker is characterized in that the frame columns and the frame beams are respectively internally provided with steel bars, so as to form frame column steel bars and frame beam steel bars; the frame column steel bars are connected with the frame beam steel bars so as to form a steel framework; the parts, which correspond to the frame column steel bars and the frame beam steel bars, of the periphery of the steel framework are respectively bound with frame column steel ribs and frame beam steel ribs; the frame columns and the frame beams are respectively and internally filled with concrete inner cores, so that a steel-bar concrete frame is formed; the steel-bar concrete frame is provided with buckling restrained braces in a transverse direction and a longitudinal direction respectively. The shock-resistant steel-bar concrete structure side coal bunker achieves the technical purposes of reducing component sections, quickening the construction speed, improving the structural shock resistance and the like, can be used for saving construction materials, reducing the consumption of cement, gravel, sand, steel products and water and saving land, can be rapidly put into production again by virtue of simple maintenance after being subjected to great shock, so that the electric power supply is guaranteed and the society stability maintained.
Description
Technical field
The present invention relates to the side coal bunker structure in steam power station, especially relate to the antidetonation steel reinforced concrete structure side coal bunker that a kind of intensity is high.
Background technology
To build up or in some newly-built steam power station, in order to reduce the length of steam turbine and boiler room four large pipeline (the cold pipeline of main steam line, reheating, reheating hot channel, main feed water pipe road), normal employing side coal bunker scheme in technology arrangement, and become main flow arrangement gradually.Because four large pipelines are high-temperature and pressure pipelines, material is expensive, in the investment of steam power station, occupy larger share.Coal conveyer belt, coal bunker, feeder etc. are arranged, zero meter of layout coal pulverizer in the coal bunker of side.Wherein the load of coal bunker part is very large, and up to a few kiloton, and the position of coal bunker is higher, and antidetonation is very unfavorable, and the anti-seismic performance of offside coal bunker proposes very high request.
Side coal bunker adopts reinforced concrete frame structure usually, and reinforced concrete frame structure is a kind of flexible structure.Lower by the anti-side rigidity that beam-post frame system provides, be difficult to when earthquake provide anti-side rigidity to meet the requirement for structure relative storey displacement and overall displacements in specification economically.Increase anti-side rigidity often through increase beam column section, cause investment to increase, and take up room, cause technology arrangement difficulty.In addition, though reinforced concrete frame structure can realize " no collapsing with strong earthquake " when rarely occurred earthquake, because beam-ends forms plastic hinge, be difficult to continue to use, repair difficulty.Even if repair, cost cost is also very large.The side coal bunker of the power plant also had adopts steel work, and steel work ductility is better, excellent earthquake resistance, but compares reinforced concrete structure, and cost is too high, and fire prevention aspect problem is a lot.
Summary of the invention
The object of this invention is to provide a kind of antidetonation steel reinforced concrete structure side coal bunker, reduce structural element section, convenient construction to reach, the object improving anti-seismic performance and reduce costs.
For achieving the above object, the invention provides a kind of antidetonation steel reinforced concrete structure side coal bunker, comprise frame column, Vierendeel girder, it is characterized in that: reinforcing bar is set respectively in frame column and Vierendeel girder and forms frame column reinforcing bar and Vierendeel girder reinforcing bar, frame column reinforcing bar and Vierendeel girder reinforcing bar are connected to form steel frame, frame column reinforcing bar and Vierendeel girder reinforcing bar colligation frame column reinforcing bar and Vierendeel girder reinforcing bar is respectively corresponded to around steel frame, be filled with concrete inner core respectively in frame column and Vierendeel girder thus just form steel reinforced concrete framework, laterally and longitudinally buckling restrained brace is set respectively at steel reinforced concrete framework.
The interior diagonal angle that connects of unit frame that buckling restrained brace is longitudinally arranged on below installation of coal hopper position is arranged, and forms taper support reinforcing mechanisms, and only arranges continuously from top to bottom in the both sides of lateral frame post; The height of buckling restrained brace horizontally set and form and vertical consistency and interlacing are arranged.
Buckling restrained brace and steel reinforced concrete framework rely on respective be with connection floor to pass through pinned connection.
The present invention adopts steel reinforced concrete structure, compared with reinforced concrete structure, has following advantage:
(1) bearing capacity height and rigidity greatly, can reduce structural element section.Because steel reinforced concrete structure does not limit by steel ratio, steel reinforced concrete structure element bearing capacity can higher than the supporting capacity more than 1 times of the reinforced concrete member of identical appearance size.When bearing identical load, steel reinforced concrete structure component comparatively reinforced concrete structural element cross dimensions reduces, and can increase effective usable floor area and clear height, alleviate foundation load, reduce basic expense.In the suitable situation of supporting capacity, comparatively reinforced concrete structure is compared, and can save the concrete of about 30%;
(2) short construction period.Steel reinforced concrete Shaped Steel reinforcing bar just forms steel structure framework before not having concreting, there is higher supporting capacity, member dead weight and working load can be born, can template is fixed on steel frame, decrease artificial, material and the time of formwork, also save operating expenses.And steel reinforced concrete structure building does not need to wait for that concrete reaches some strength and just can continue upper strata of constructing, and its construction time limit shortens greatly than reinforced concrete structure;
(3) good seismic performance.Owing to being provided with reinforcing bar in steel reinforced concrete structure, making steel reinforced concrete structure have larger ductility and deformability compared with reinforced concrete structure, there is good anti-seismic performance.
Steel reinforced concrete structure, compared with full steel structure, has the following advantages:
(1) saving steel, reduces cost.When supporting capacity is suitable, rolled steel dosage can reduce about 50%, and cost can reduce about 25%, and economic benefit is considerable;
(2) good durability and refractoriness is had.The concrete of reinforcing bar outer wrapping can resist the erosion of hazardous medium, prevents the effect of steel corrosion.Due to protective effect concrete outside reinforcing bar, the fire resistance of steel reinforced concrete structure component is better than full steel structure;
(3) stress performance is good.Common steel structure member buckle in compression, and the reinforcing bar in steel reinforced concrete structure is because of the effect of contraction by surrounding concrete, can overcome the weakness of reinforcing bar buckle in compression.
In sum, add buckling restrained brace at steel reinforced concrete framework, can further improve the anti-seismic performance of structure.Owing to there is not buckle in compression problem in buckling restrained brace, under identical load condition, compared with common support, its cross section can reduce greatly, and the anti-side rigidity of structure becomes soft, cycle corresponding lengthening.Structural cycle lengthens, and the direct result brought is that structural seismic response reduces.If fruit structure is by earthquake operating conditions, after geological process reduces, the section of structural element can reduce, and the overall cost of structure can reduce about 10% ~ 30%.When buckling restrained brace is in elastic stage, can be the anti-side rigidity that structure provides very large, in order to resist the effect that little shake and wind carry.When buckling restrained brace is in elastic-plastic phase, deformability is strong, and Hysteresis Behavior is good, as the energy-consumption damper of same function admirable, can be used for resisting severe earthquake action.Buckling restrained brace has clear and definite surrender bearing capacity, can play the effect of " fuse " when large shake, for the protection of steel reinforced concrete agent structure unyielding or not serious destruction under large shake, and, the support of damage can be changed after shake easily.Usually require as " no damage in small earthquake, middle shake can be repaiied, no collapsing with strong earthquake " to three of structural seismic performance, adopting steel reinforced concrete structure to add buckling restrained brace can make the anti-seismic performance of side coal bunker structure improve a level, reaches " little shake economy, not bad, the large shake of middle shake are easily repaiied ".
Visible, the present invention is except realizing reducing component section, accelerating speed of application, improving except the technical purposes such as structural seismic performance, also bring following social benefit: the section reducing component, also just constructional materials is saved, reduce the consumption of cement, stone, sand, steel, water, meet the industrial policy of state guarantee soil and water resource, energy-saving and emission-reduction, protection of the environment; Conserve space, is beneficial to technology arrangement.Save soil, meet national intensive utilization land policy; Speed of application is fast, the reduction of erection time, improves unit interval benefit, for factory goes into operation establish a firm foundation early; After large shake, after simplified overhauling, again can put into production fast, ensure supply of electric power, maintain social stability.Visible this buckling restrained brace steel reinforced concrete structure side coal bunker has extraordinary comprehensive benefit.
Accompanying drawing explanation
Fig. 1 is buckling restrained brace steel reinforced concrete structure side coal bunker frame plane figure;
Fig. 2 cross section A-A is the longitudinal elevation of buckling restrained brace steel reinforced concrete structure side coal bunker framework;
Fig. 3 section B-B is the horizontal elevation of buckling restrained brace steel reinforced concrete structure side coal bunker framework;
Fig. 4 is frame column profile;
Fig. 5 is Vierendeel girder profile;
Fig. 6 is that buckling restrained brace connects detail drawing.
Detailed description of the invention
With reference to Fig. 1, Fig. 4, Fig. 5, the present invention includes frame column 1, Vierendeel girder 2, frame column 1 is by frame column reinforcing bar 101, frame column reinforcing bar 102, frame column concrete inner core 103 is formed, Vierendeel girder 2 is by Vierendeel girder reinforcing bar 201, Vierendeel girder reinforcing bar 202, Vierendeel girder concrete inner core 203 is formed, reinforcing bar is set respectively in frame column and Vierendeel girder and forms frame column reinforcing bar and Vierendeel girder reinforcing bar, frame column reinforcing bar and Vierendeel girder reinforcing bar are connected to form steel frame, frame column reinforcing bar and Vierendeel girder reinforcing bar colligation frame column reinforcing bar and Vierendeel girder reinforcing bar is respectively corresponded to around steel frame, frame column concrete inner core and Vierendeel girder concrete inner core is filled with respectively in frame column and Vierendeel girder, thus just form steel reinforced concrete framework, at steel reinforced concrete framework, laterally and longitudinally buckling restrained brace 3 is set respectively.
With reference to Fig. 1, Fig. 2, Fig. 3, the interior diagonal angle that connects of unit frame that buckling restrained brace 3 is longitudinally arranged on below coal bunker 4 installation site is arranged, and forms taper support reinforcing mechanisms, and only arranges continuously from top to bottom in the both sides of lateral frame post; The height of buckling restrained brace 3 horizontally set and form and vertical consistency and interlacing are arranged.
With reference to Fig. 6, connection floor 5 and the connection floor 5 be welded on frame column reinforcing bar 101 and Vierendeel girder reinforcing bar 104 of buckling restrained brace 3 end are connected by bearing pin 6.
Making and installation method: first frame column reinforcing bar and Vierendeel girder reinforcing bar are connected into steel frame, then colligation frame column reinforcing bar and Vierendeel girder reinforcing bar around it, following formwork, pouring frame post concrete and Vierendeel girder concrete, so just form steel reinforced concrete framework.Steel reinforced concrete framework arranges buckling restrained brace, and buckling restrained brace can buy finished product.Connection floor on the connection floor of buckling restrained brace end and soldering frame trestle reinforcing bar and Vierendeel girder reinforcing bar couples together by bearing pin, is so just arranged on steel reinforced concrete framework by buckling restrained brace.
Claims (3)
1. an antidetonation steel reinforced concrete structure side coal bunker, comprise frame column, Vierendeel girder, it is characterized in that: reinforcing bar is set respectively in frame column and Vierendeel girder and forms frame column reinforcing bar and Vierendeel girder reinforcing bar, frame column reinforcing bar and Vierendeel girder reinforcing bar are connected to form steel frame, frame column reinforcing bar and Vierendeel girder reinforcing bar colligation frame column reinforcing bar and Vierendeel girder reinforcing bar is respectively corresponded to around steel frame, be filled with concrete inner core respectively in frame column and Vierendeel girder thus just form steel reinforced concrete framework, laterally and longitudinally buckling restrained brace being set respectively at steel reinforced concrete framework.
2. a kind of antidetonation steel reinforced concrete structure side according to claim 1 coal bunker, it is characterized in that: the interior diagonal angle that connects of unit frame that buckling restrained brace is longitudinally arranged on below installation of coal hopper position is arranged, form taper support reinforcing mechanisms, and only arrange continuously from top to bottom in the both sides of lateral frame post; The height of buckling restrained brace horizontally set and form and vertical consistency and interlacing are arranged.
3. a kind of antidetonation steel reinforced concrete structure side according to claim 2 coal bunker, is characterized in that: buckling restrained brace and steel reinforced concrete framework rely on respective be with connection floor to pass through pinned connection.
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| CN201510190983.4A CN104775649A (en) | 2015-04-22 | 2015-04-22 | Shock-resistant steel-bar concrete structure side coal bunker |
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| CN201510190983.4A CN104775649A (en) | 2015-04-22 | 2015-04-22 | Shock-resistant steel-bar concrete structure side coal bunker |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106703197A (en) * | 2017-03-21 | 2017-05-24 | 中国航空规划设计研究总院有限公司 | Longspan multilayer anti-seismic frame structure system and construction method thereof |
| JP2018066222A (en) * | 2016-10-20 | 2018-04-26 | 株式会社竹中工務店 | building |
| CN108222628A (en) * | 2018-03-26 | 2018-06-29 | 郑州航空工业管理学院 | An energy-dissipating shock-absorbing device between columns for silos |
| CN108266037A (en) * | 2018-03-26 | 2018-07-10 | 郑州航空工业管理学院 | A kind of damper silo |
| CN113152951A (en) * | 2021-04-22 | 2021-07-23 | 薛寒 | Method for reducing earthquake loss of steel structure factory building and steel structure factory building |
| CN114233075A (en) * | 2021-12-30 | 2022-03-25 | 中国能源建设集团浙江省电力设计院有限公司 | A zigzag integrated side coal bunker |
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| CN106703197A (en) * | 2017-03-21 | 2017-05-24 | 中国航空规划设计研究总院有限公司 | Longspan multilayer anti-seismic frame structure system and construction method thereof |
| CN108222628A (en) * | 2018-03-26 | 2018-06-29 | 郑州航空工业管理学院 | An energy-dissipating shock-absorbing device between columns for silos |
| CN108266037A (en) * | 2018-03-26 | 2018-07-10 | 郑州航空工业管理学院 | A kind of damper silo |
| CN108222628B (en) * | 2018-03-26 | 2023-05-09 | 郑州航空工业管理学院 | Inter-column energy consumption and shock absorption device for silo |
| CN113152951A (en) * | 2021-04-22 | 2021-07-23 | 薛寒 | Method for reducing earthquake loss of steel structure factory building and steel structure factory building |
| CN113152951B (en) * | 2021-04-22 | 2022-08-23 | 薛寒 | Method for reducing earthquake loss of steel structure factory building and steel structure factory building |
| CN114233075A (en) * | 2021-12-30 | 2022-03-25 | 中国能源建设集团浙江省电力设计院有限公司 | A zigzag integrated side coal bunker |
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Application publication date: 20150715 |
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