CN202611287U - Steel structure combined system applicable to large-scale thermal power plant - Google Patents

Steel structure combined system applicable to large-scale thermal power plant Download PDF

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Publication number
CN202611287U
CN202611287U CN 201220245536 CN201220245536U CN202611287U CN 202611287 U CN202611287 U CN 202611287U CN 201220245536 CN201220245536 CN 201220245536 CN 201220245536 U CN201220245536 U CN 201220245536U CN 202611287 U CN202611287 U CN 202611287U
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CN
China
Prior art keywords
steel
frame
frame construction
combined
flange
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CN 201220245536
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Chinese (zh)
Inventor
薛建阳
刘祖强
梁炯丰
彭修宁
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西安建筑科技大学
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Priority to CN 201220245536 priority Critical patent/CN202611287U/en
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Publication of CN202611287U publication Critical patent/CN202611287U/en

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Abstract

The utility model relates to a steel structure combined system applicable to a large-scale thermal power plant. The steel structure combined system applicable to the large-scale thermal power plant comprises a first frame structure, a second frame structure and a steel skeleton which are connected with one another sequentially, wherein the steel skeleton consists of a plurality of rod pieces which are rigidly connected or hinged mutually; the first frame structure and the second frame structure adopt multi-layer steel frame structures; the first frame structure is higher than the second frame structure; and the second frame structure is higher than the steel skeleton. The steel structure combined system applicable to the large-scale thermal power plant is convenient to construct; steel components can be processed in a processing plant in advance and are directly hoisted to the specific position in situ for connection, so the construction speed is high; steel beams with different section heights are used on two sides of irregular nodes, so that the bearing capacity on one side with heavy load can meet the requirement and waste of steel materials on the other side with light load can be avoided; the steel structure combined system has ductility and energy-dissipating capacity similar to those of a steel frame structure, has earthquake resistance more excellent than that of a reinforced concrete structure, and can be popularized and applied in a large-capacity main workshop of a thermal power plant in a high-intensity region.

Description

A kind of steel work combined system that is applicable to large thermal power plant
Technical field
The utility model relates to the building steel structure system, particularly a kind of steel work combined system that is applicable to large thermal power plant.
Background technology
Electric power is the emphasis basic industry of national economy, in the steam power station, adopts big capacity unit (more than the 600MW), and not only technical indicator advanced person, and environment-friendly advantage and energy conservation and consumption reduction effects are obvious, meet strategic overall situation, have wide development and application prospect.Main building is the core of thermal power plant, the general three row formula structures that comprise steam turbine building, deaerator bay and bunker bay that adopt.In the Power Plant Main House structure design, because the requirement of production technology, part usually occurring is that multilayer, part are the large space system of individual layer; This structural system is different with frame construction in the general civilian construction, because device category is various, operational factor is complicated; Cause its integral arrangement complicated; The entire space poor-performing, the Load Transfer route is indeterminate, thereby causes its anti-seismic performance relatively poor.Past, medium and small unit main building often adopted the reinforced concrete structure system, and along with the development of State Grid's industry, single-machine capacity constantly increases; Structure height, span, loading also strengthen thereupon, and structural dynamic characteristic is more complicated, and the geological process that structure is born is also bigger; At this moment; Traditional reinforced concrete structure is not suitable in highly seismic region big capacity unit main building, and it is bigger than normal that the ratio of axial compressive force to axial compressive ultimate capacity of section of part bottom column appears in structure, problem such as structure relative storey displacement under the geological process, top displacement are bigger than normal; Therefore 8 degree set up defences and more than high earthquake intensity area, the reinforced concrete structure form can not satisfy the requirement of big capacity unit main building.In order to advance thermal power plant's structural system innovation, improve the anti-seismic performance of main building structure, demand developing a kind of new structure system urgently, be applicable to the big capacity unit main building of highly seismic region.The steel work layout is flexible, and mechanization and industrialization degree are high, and anti-seismic performance is good, is the sustainable development product of environment-friendly type.Therefore, the large electric power plant main building adopts the steel work combined system, can overcome the shortcoming of reinforced concrete structure, satisfies high earthquake intensity ground area large-capacity unit main building rigidity and requirement for bearing capacity.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of steel work combined system that is applicable to large thermal power plant, is made up of two frame constructions and a steel frame, has staggered floor construction in the system, and anti-seismic performance is good.
In order to achieve the above object, the technical scheme of the utility model employing is:
A kind of steel work combined system that is applicable to large thermal power plant comprises first frame construction 1, second frame construction 2 and the steel frame 3 that join successively, and said steel frame 3 is formed, formed each other and rigidly connect or hinged structure by some rod members.
First frame construction 1 is higher than second frame construction, 2, the second frame constructions 2 and is higher than steel frame 3.
First frame construction 1 and second frame construction 2 are the composite steel frame construction.
Be provided with some steel bearing diagonals 4 in the framework of said first frame construction 1.
Be provided with one in the framework of said first frame construction 1 by the truss 5 that bearing diagonal is formed is lacked in girder steel and centre up and down.
Said first frame construction 1 adopts the mode of rigidly connecting to be connected with second frame construction 2, on shared box column 13, the first frame constructions 1 box-girder 14 is arranged; On second frame construction 2 i beam 15 is arranged; The external box-girder 14 of box column 13 1 sides, the external i beam 15 of a relative side, the top flange of the top flange of box-girder 14 and i beam 15 is on same horizontal plane; The bottom flange of box-girder 14 is lower than the bottom flange of i beam 15, thereby forms the first cross irregular node 6.
The right post 11 of said steel frame 3 is hinged with an end of upper end girder steel 10; Left side post 12 is hinged with the other end of upper end girder steel 10; Said second frame construction 2 and steel frame 3 join the post 11 in the right, are provided with two-layer steel frame 8 of first single span and the two-layer steel frame 9 of second single span in the said steel frame 3.
On said second frame construction 2 little i beam 17 is arranged; On the two-layer steel frame 8 of said first single span big i beam 16 is arranged, the right post 11 of said steel frame 3 is an I-column, and the right side of the right post 11 connects little i beam 17; The left side connects big i beam 16; The top flange of the top flange of said little i beam 17 and big i beam 16 is on same horizontal plane, and the bottom flange of little i beam 17 is lower than the bottom flange of big i beam 16, forms the second cross irregular node 7.
Compared with prior art, the beneficial effect of the utility model is:
1) easy construction, the steel member can machine in processing factory in advance, be transported to the scene after, directly lift assigned address and connect, speed of application is fast;
2) satisfy technological requirement, practice thrift steel, adopt the girder steel of different cross section height in the irregular node both sides, both can guarantee to meet the demands, can avoid waste again at the less side steel of load at the bigger side bearing capacity of load;
3) rigidity is big; Bearing capacity is high; Anti-seismic performance is good, and experimental study shows that the ductility of this steel work combined system is similar with steel framed structure with energy dissipation capacity; Anti-seismic performance is superior to reinforced concrete structure fully, makes steel work main building system in the big capacity main building of highly seismic region thermal power plant, be able to apply.
Description of drawings
Accompanying drawing is the front view of the utility model steel work combined system sketch map.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is explained further details.
Shown in accompanying drawing, be a kind of front view that is applicable to the steel work combined system of large thermal power plant.The steel work combined system comprises first frame construction 1, second frame construction 2 and the steel frame 3 that joins successively in the horizontal direction, and said steel frame 3 is formed, formed each other and rigidly connect or hinged structure by some rod members.Wherein first frame construction 1 and second frame construction 2 are the composite steel frame construction, and first frame construction 1 is higher than second frame construction, 2, the second frame constructions 2 and is higher than steel frame 3, thereby forms a kind of staggered floor construction.The truss 5 that is provided with some steel bearing diagonals 4 in the framework of first frame construction 1 and forms by girder steel up and down and middle short bearing diagonal.
First frame construction 1 adopts the mode of rigidly connecting to be connected with second frame construction 2, on shared box column 13, the first frame constructions 1 box-girder 14 is arranged; On second frame construction 2 i beam 15 is arranged; The external box-girder 14 of box column 13 1 sides, the external i beam 15 of a relative side, the top flange of the top flange of box-girder 14 and i beam 15 is on same horizontal plane; The bottom flange of box-girder 14 is lower than the bottom flange of i beam 15, thereby forms the first cross irregular node 6.
The right post 11 of steel frame 3 is hinged with an end of upper end girder steel 10, and left side post 12 is hinged with the other end of upper end girder steel 10, and said second frame construction 2 and steel frame 3 join the post 11 in the right.Be provided with in the said steel frame 3 between the inner beam column of the two-layer steel frame of the two-layer steel frame 8 of first single span and the second single span two-layer steel frame 8 of two-layer steel frame 9, the first single spans and second single span 9 and all adopt the mode of rigidly connecting; Little i beam 17 is arranged on second frame construction 2; On the two-layer steel frame 8 of said first single span big i beam 16 is arranged, the right post 11 of said steel frame 3 is an I-column, and the right side of the right post 11 connects little i beam 17; The left side connects big i beam 16; The top flange of the top flange of said little i beam 17 and big i beam 16 is on same horizontal plane, and the bottom flange of little i beam 17 is lower than the bottom flange of big i beam 16, forms the second cross irregular node 7.
The operating principle of the utility model is:
The steel work combined system is made up of first frame construction 1, second frame construction 2 and steel frame 3, and the bottom floor height of first steel frame 1 is bigger, and the top is provided with the truss of being made up of girder steel up and down and middle short bearing diagonal 5, improves its rigidity.First steel frame 1 adds some steel bearing diagonals 4, both can reduce steel using amount, also can guarantee rigidity and bearing capacity, meets the axial force-resisting member basic principle higher than bending resistance component power transmission efficiency.Steel frame 3 can guarantee that structure has bigger operating space, satisfies manufacturing technique requirent, and the bottom is provided with two steel frames that single span is two-layer, both can improve the rigidity of structural entity, can be used as the operating platform in the production again.The load that second steel frame 2 bears is less than the steel frame that is provided with in first steel frame 1 and the steel frame 3; Therefore much higher in the section ratio steel frame 2 of the girder steel of steel frame in steel frame 1 and the steel frame 3; Thereby make girder steel and steel column be connected to form the cross irregular node; Improve the shear resistance of joint cores, practiced thrift steel.Girder steel adopts bolt weldering mixing to be connected with steel column or welds being rigidly connected of connecting entirely, at the flange of beam respective heights place of joint cores stiffening rib is set, and guarantees that power transmission is clear and definite.This steel work combined system can either satisfy the technological requirement of big capacity unit main building, has good supporting capacity and anti-seismic performance again.

Claims (8)

1. steel work combined system that is applicable to large thermal power plant; It is characterized in that; Comprise first frame construction (1), second frame construction (2) and the steel frame (3) that join successively, said steel frame (3) is formed, is formed each other and rigidly connect or hinged structure by some rod members.
2. steel work combined system according to claim 1 is characterized in that, first frame construction (1) is higher than second frame construction (2), and second frame construction (2) is higher than steel frame (3).
3. steel work combined system according to claim 1 is characterized in that, first frame construction (1) and second frame construction (2) are the composite steel frame construction.
4. steel work combined system according to claim 1 is characterized in that, is provided with some steel bearing diagonals (4) in the framework of said first frame construction (1).
5. steel work combined system according to claim 1 is characterized in that, is provided with one in the framework of said first frame construction (1) by the truss (5) that bearing diagonal is formed is lacked in girder steel and centre up and down.
6. steel work combined system according to claim 1 is characterized in that, said first frame construction (1) adopts the mode of rigidly connecting to be connected with second frame construction (2); Shared box column (13); Box-girder (14) is arranged on first frame construction (1), i beam (15) is arranged on second frame construction (2), the box column external box-girders of (13) one sides (14); The external i beam of a relative side (15); The top flange of the top flange of box-girder (14) and i beam (15) is on same horizontal plane, and the bottom flange of box-girder (14) is lower than the bottom flange of i beam (15), thereby forms the first cross irregular node (6).
7. steel work combined system according to claim 1; It is characterized in that; The right post (11) of said steel frame (3) is hinged with an end of upper end girder steel (10); The other end of left side post (12) and upper end girder steel (10) is hinged, and said second frame construction (2) and steel frame (3) join the post (11) in the right, are provided with two-layer steel frame of first single span (8) and the two-layer steel frame of second single span (9) in the said steel frame (3).
8. steel work combined system according to claim 7; It is characterized in that little i beam (17) is arranged on said second frame construction (2), big i beam (16) is arranged on the two-layer steel frame of said first single span (8); The right post (11) of said steel frame (3) is an I-column; The right side of the right post (11) connects little i beam (17), and the left side connects big i beam (16), and the top flange of the top flange of said little i beam (17) and big i beam (16) is on same horizontal plane; The bottom flange of little i beam (17) is lower than the bottom flange of big i beam (16), forms the second cross irregular node (7).
CN 201220245536 2012-05-29 2012-05-29 Steel structure combined system applicable to large-scale thermal power plant CN202611287U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704718A (en) * 2012-05-29 2012-10-03 西安建筑科技大学 Large-scale thermal power plant steel structure combining system with high shock resistance
CN103362324A (en) * 2013-07-25 2013-10-23 中国电力工程顾问集团华东电力设计院 Support-truss structure for supporting coal bucket
CN108049666A (en) * 2017-12-15 2018-05-18 陕西建工机械施工集团有限公司 A kind of echelon installation method of super plane multilayer steel truss electronic workshop steel construction
CN108374490A (en) * 2018-01-12 2018-08-07 中建钢构有限公司 A kind of steel frame structural system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704718A (en) * 2012-05-29 2012-10-03 西安建筑科技大学 Large-scale thermal power plant steel structure combining system with high shock resistance
CN103362324A (en) * 2013-07-25 2013-10-23 中国电力工程顾问集团华东电力设计院 Support-truss structure for supporting coal bucket
CN103362324B (en) * 2013-07-25 2016-05-18 中国电力工程顾问集团华东电力设计院有限公司 Support-the truss structure of supporting coal bunker
CN108049666A (en) * 2017-12-15 2018-05-18 陕西建工机械施工集团有限公司 A kind of echelon installation method of super plane multilayer steel truss electronic workshop steel construction
CN108374490A (en) * 2018-01-12 2018-08-07 中建钢构有限公司 A kind of steel frame structural system

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Granted publication date: 20121219

Termination date: 20130529