CN202380574U - Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame - Google Patents
Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame Download PDFInfo
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- CN202380574U CN202380574U CN2011204812166U CN201120481216U CN202380574U CN 202380574 U CN202380574 U CN 202380574U CN 2011204812166 U CN2011204812166 U CN 2011204812166U CN 201120481216 U CN201120481216 U CN 201120481216U CN 202380574 U CN202380574 U CN 202380574U
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Abstract
The utility model relates to a core barrel with mild steel sleeves at bottoms and hidden steel plates in a concrete-filled steel tube frame. The core barrel consists of concrete-filled steel tube frame posts, mild steel sleeves and steel plate and concrete shearing walls. The core barrel disclosed by the utility model is three combinations, including a combination of reinforcing steel bars and concrete, a combination of steel pipes and concrete and a combination of concrete-filled steel tube frame posts and steel plate shearing walls. Compared with the ordinary reinforced concrete barrel body, the core barrel with mild steel sleeves at bottom and hidden steel plates in the concrete-filled steel tube frame has the advantages of higher initial rigidness, higher bearing capability, slow reduction of bearing force and rigidness, and good earthquake-proofness and energy consumption of the whole structure; the final earthquake-proof performance is relatively stable; after the mild steel sleeves are additionally arranged, the outside mild steel sleeves are yielded at first to consume energy input into a structure by an earthquake and can play resistance and ductility roles till the mild steel sleeves are damaged, so that the early damage and destroy of high-strength steel plates are prevented and delayed.
Description
Technical field
The utility model relates to the built-in steel plate core of a kind of bottom band mild steel sleeve pipe steel pipe concrete frame tube, is a kind of combined barrel that is applied to highrise building, belongs to building engineering field.
Background technology
Along with developing rapidly and quickening of urbanization process of China's economic construction, highrise building is built in a large number.In the selection of tall building structures system, generally all to consider to improve structure the energy dissipation ability, alleviate wind induced oscillation, shorten construction period, lower factors such as cost.The cylindrical shell of being made up of shear wall is the core of highrise building antidetonation; Because highrise building needs bigger lateral rigidity; Therefore in the design; The design of lateral resisting structure is crucial, and cylindrical shell is as one of main lateral resistant member, and its service behaviour under geological process has crucial effects to the security performance of total.The highrise building bottom member will bear bigger horizontal loading and vertical load usually, so the development of modern high-rise building is to the demands for higher performance of cylindrical shell.
Because the large complicated highrise building of pursuing individualityization is increasing, we are also increasingly high to the requirement of tubular construction anti-seismic performance.The destruction of existing ordinary reinforced concrete tubular construction under geological process is mostly occurred at the root of cylindrical shell, and this anti-seismic performance to total is very unfavorable.The steel plate concrete combined barrel combines reinforced concrete structure and steel work, can remedy shortcoming separately, brings into play their advantage better, makes structure have bigger bearing capacity and rigidity, has better ductility and energy dissipation capacity.Because highrise building generally all needs bigger anti-side rigidity, so the design of tubular construction must consider the design of lateral resisting, also should satisfy the requirement of providing fortification against earthquakes simultaneously.The bottom band mild steel sleeve pipe steel pipe concrete frame built-in steel plate core tube and the practice are a kind of cost-effective novel anti side force systems, have both satisfied the requirement of anti-side rigidity, have satisfied the requirement of ductile performance again.
At present; In the research field of tubular construction; Focus mostly in research to the ordinary reinforced concrete cylindrical shell; And less relatively to the achievement in research of built-in steel plate core tube, deep not enough to the research of its anti-seismic performance and construction measure, its internal material energy dissipation ability is not carried out deep excavation.
The utility model content
The utility model technical problem to be solved is: give full play to the anti-seismic performance of built-in steel plate core tube, improve its ductility and energy dissipation ability.The utility model has proposed the built-in steel plate core of a kind of bottom band mild steel sleeve pipe steel pipe concrete frame tube in order to address this problem.
The technical scheme that the utility model adopts is:
The built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube is characterized in that: said core tube is surrounded by steel pipe concrete frame post all around and steel plate concrete shear wall and constitutes; Be provided with the shear wall steel plate in the said steel plate concrete shear wall, in the steel plate concrete shear wall of the both sides of shear wall steel plate, be provided with the steel mesh reinforcement of forming by transversely distributed steelbar and vertical distribution reinforcement, between steel mesh reinforcement, socket each other with socketing reinforcing bar; The steel pipe concrete frame post is arranged at steel plate concrete shear wall two ends, promptly around steel plate concrete shear wall intersection; Said steel pipe concrete frame post is made up of the concrete of interior pipe and interior filling thereof; In the superimposed mild steel sleeve pipe that is provided with of bottom outside of pipe, the mild steel sleeve pipe put in the bottom ground or basic end face and with its anchoring; Be embedded with high-ductility composite material between interior pipe and the mild steel sleeve pipe.
Said steel pipe concrete frame post is rectangle, circle or table tennis bat tee section.
The mild steel sleeve pipe of said steel pipe concrete frame post height above ground level or basic end face is 1.0h, and wherein, h is the diameter of rectangular shaped rim column length limit size or circular frame columns.Just strengthen the frame columns plastic hinge territory of steel plate concrete compound shear wall, made frame columns have better ductile performance, delayed or avoided the destruction of shear wall frame columns bottom, improved its seismic bearing capacity and energy dissipation capacity.
Said shear wall steel plate is individual layer or bilayer.
Said shear wall steel plate is provided with and is used to socket the hole that reinforcing bar passes.
The thickness of said mild steel sleeve pipe is not less than the thickness of the interior pipe of steel pipe concrete frame post.
Said high-ductility composite material comprises polymer modified cement-concrete, rubber fine aggregate cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.
The thickness of said high-ductility composite material is not less than the thickness of mild steel sleeve pipe, and is not less than 20mm.
At mild steel sleeve pipe and the two-way bolt hole that offers in the position of the corresponding stack of interior pipe; Mild steel sleeve pipe and interior pipe are inter-connected via a bolt joint; The diameter of perforate is a bit larger tham the diameter of bolt on the mild steel sleeve pipe; The diameter of bolt is not less than the thickness of mild steel sleeve pipe and interior pipe, and the quantity of bolt hole is no less than two rows, and the level of every row's bolt hole all is not more than 200mm with vertical spacing.High-ductility composite material to guarantee mild steel sleeve pipe and interior pipe and embedding contact closely, makes bolt can pass interior the pipe and mild steel sleeve pipe and reduce the weakening to same horizontal section smoothly.
The practice of the built-in steel plate core of above-mentioned bottom band mild steel sleeve pipe steel pipe concrete frame tube, its production order is following:
1) makes the interior pipe of mild steel sleeve pipe, shear wall steel plate and steel pipe concrete frame post as requested, on the shear wall steel plate, reserve the stirrup perforation and socket reinforced steel bar perforation, at the position prepared screw-bolt hole of mild steel sleeve pipe with the interior pipe corresponding stack in bottom;
2) in the welding pipe so that it forms the steel frame of steel pipe concrete frame post, with the mild steel sleeve pipe of making be superimposed upon corresponding in the pipe bottom outside, and interconnect with bolt;
3) shear wall steel plate and interior pipe are welded together, form the closed cylinder structure;
4) transversely distributed steelbar of colligation shear wall steel plate both sides and vertical distribution reinforcement, colligation afterwards sockets reinforcing bar, forms steel mesh reinforcement;
5) embed high-ductility composite material between mild steel sleeve pipe in the steel pipe concrete frame post and the interior pipe;
6) reserve the certain protection layer thickness in the steel mesh reinforcement outside, a template;
7) concrete perfusion in template is the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube after the moulding.
The built-in steel plate core of the bottom band mild steel sleeve pipe steel pipe concrete frame tube of the utility model; After core tube concreting; For the steel pipe concrete frame post, the rigidity of the connecting portion of the steel pipe of mild steel sleeve pipe and built-in steel core concrete column with respect to concrete rigidity a little less than, formed an iron hand in a velvet glove structure; This structure helps the energy dissipation capacity under geological process; Can give full play to the energy dissipation capacity of outside mild steel sleeve pipe and inner steel plate, make it under geological process, show more excellent anti-seismic performance, and then improve the anti-seismic performance of whole core tube.
Beneficial effect
The inner high-strength steel sheet of core tube can bear bigger load action, practice thrift steel, but under the rarely occurred earthquake effect, large deformation makes its rupture failure easily repeatedly.Experimental study under the low cycle repetitive load effect shows, the destruction of double steel plate concrete combined barrel mainly is surrender, flexing and rupture failure and the concrete destruction of root steel plate.
Compare with ordinary reinforced concrete core tube, the utlity model has following advantage:
Under the frequently occurred earthquake effect, the double steel plate concrete combined barrel is stressed less, and this moment, the bottom retrained mild-steel energy-consumption steel plate and inner steel plate friction energy-dissipating under the weld seam effect; This moment, weld seam not only improved its friction energy-dissipating ability, and constraint mild-steel energy-consumption steel plate and inner steel plate are connected as a single entity, and its integral working is good, and rigidity is big, and intensity is also big; Under the rarely occurred earthquake effect, it is serious that weld seam is cut damage, and its contact effect weakens; The co-operation performance degradation, they begin to give full play to separately its ductility and power consumption effect, and structure collectivity rigidity reduces; Natural vibration period is elongated, and geological process reduces, after the steel pipe concrete frame column bottom of built-in steel plate core tube increases constraint mild-steel energy-consumption steel plate; Be equivalent to increase anti-vibration defense lines one, improved the safety of structure.
After the overseas side of steel pipe root plastic hinge in the steel pipe concrete frame post of built-in steel plate core tube adds the mild steel sleeve pipe; Outside mild steel sleeve pipe is at first surrendered; Consume the energy of earthquake input structure; Can bring into play its drag and ductility effect until destroying, to have played preventing and delay the too early damage of high-strength steel sheet and the effect of destruction.
The supporting capacity of the utility model is greatly improved, and has good later stage anti-seismic performance, has improved the energy dissipation ability of built-in steel plate core tube; Also just improved the whole shock resistance of structure; When building meets with violent earthquake, can alleviate its earthquake, prevent its destruction that collapses.
Description of drawings
Fig. 1 is the floor map of the frame columns of the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube when being concrete-filled rectangular steel tube;
Fig. 2 is the floor map of the frame columns of the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube when being the round steel pipe concrete;
Fig. 3 is the A-A sectional drawing among Fig. 1;
Fig. 4 is the B-B sectional drawing among Fig. 1;
Fig. 5 is the thin portion sketch map of Fig. 1 frame columns;
Fig. 6 is the thin portion sketch map of Fig. 2 frame columns;
Wherein: pipe in the 1-, 2-mild steel sleeve pipe, 3-shear wall steel plate, the 4-transversely distributed steelbar, the vertical distribution reinforcement of 5-, 6-sockets reinforcing bar, 7-high-ductility composite material, 8-bolt, 9-ground or basic end face.
The specific embodiment
Below in conjunction with specific embodiment the utility model is further specified:
The built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube, like Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5, the frame columns of core tube is the embedded high-ductility composite material steel core concrete column in square-section.By around steel pipe concrete frame post and steel plate concrete shear wall surround and constitute; Be provided with shear wall steel plate 3 in the steel plate concrete shear wall, in the steel plate concrete shear wall of the both sides of shear wall steel plate 3, be provided with the steel mesh reinforcement of forming by transversely distributed steelbar 4 and vertical distribution reinforcement 5, between steel mesh reinforcement, socket each other with socketing reinforcing bar 6; The steel pipe concrete frame post is arranged at steel plate concrete shear wall two ends, promptly around steel plate concrete shear wall intersection; The steel pipe concrete frame post is made up of the concrete of interior pipe 1 and interior filling thereof; In pipe 1 the superimposed mild steel sleeve pipe 2 that is provided with of bottom outside, mild steel sleeve pipe 2 put in the bottom ground or basic end face 9 and with its anchoring; Be embedded with high-ductility composite material 7 between interior pipe 1 and the mild steel sleeve pipe 2.The height of mild steel sleeve pipe 2 end faces 9 above ground level or basic of steel pipe concrete frame post is 1.0h, and wherein, h is a rectangular shaped rim column length limit size.Shear wall steel plate 3 is double-deck.Shear wall steel plate 3 is provided with and is used to socket the hole that reinforcing bar 6 passes.The thickness of mild steel sleeve pipe 2 is not less than the thickness of the interior pipe 1 of steel pipe concrete frame post.High-ductility composite material 7 comprises polymer modified cement-concrete, rubber fine aggregate cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.The thickness of high-ductility composite material 7 is not less than the thickness of mild steel sleeve pipe 2, and is not less than 20mm.At mild steel sleeve pipe 2 and the two-way bolt hole that offers in the position of interior pipe 1 corresponding stack; Mild steel sleeve pipe 2 interconnects through bolt 8 with interior pipe 1; The diameter of perforate is a bit larger tham the diameter of bolt 8 on the mild steel sleeve pipe 2; The diameter of bolt 8 is not less than the thickness of mild steel sleeve pipe 2 and interior pipe 1, and the quantity of bolt hole is no less than two rows, and the level of every row's bolt hole all is not more than 200mm with vertical spacing.Its production order is following:
1) makes the interior pipe 1 of mild steel sleeve pipe 2, shear wall steel plate 3 and steel pipe concrete frame post as requested, on shear wall steel plate 3, reserve the stirrup perforation and socket reinforced steel bar perforation, at the position prepared screw-bolt hole of mild steel sleeve pipe 2 with the interior pipe corresponding stack in 1 bottom;
2) in the welding pipe 1 so that it forms the steel frame of steel pipe concrete frame post, with the mild steel sleeve pipe of making 2 be superimposed upon corresponding in pipe 1 bottom outside, and interconnect with bolt 8;
3) shear wall steel plate 3 and interior pipe 1 are welded together, form the closed cylinder structure;
4) transversely distributed steelbar 4 of colligation shear wall steel plate 3 both sides and vertical distribution reinforcement 5, colligation afterwards sockets reinforcing bar 6, forms steel mesh reinforcement;
5) embed high-ductility composite material 7 between mild steel sleeve pipe 2 in the steel pipe concrete frame post and the interior pipe 1;
6) reserve the certain protection layer thickness in the steel mesh reinforcement outside, a template;
7) concrete perfusion in template is the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube after the moulding.
In actual engineering, can determine whether according to actual needs high-ductility composite material 7 need be set, be easy construction, also high-ductility composite material can be set.
As shown in Figure 2, the frame columns of core tube is the embedded high-ductility composite material steel core concrete column of circular cross-section, its sectional drawing such as Fig. 3 and shown in Figure 4, and detail structure is as shown in Figure 6.Other construction measure is identical with embodiment 1 with job practices.
More than be the exemplary embodiments of the utility model, the enforcement of the utility model is not limited thereto.
Claims (8)
1. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame tube is characterized in that: said core tube by around steel pipe concrete frame post and steel plate concrete shear wall surround and constitute; Be provided with shear wall steel plate (3) in the said steel plate concrete shear wall; In the steel plate concrete shear wall of the both sides of shear wall steel plate (3), be provided with by transversely distributed steelbar (4) and the vertical steel mesh reinforcement formed of distribution reinforcement (5), between steel mesh reinforcement, socket each other with socketing reinforcing bar (6); The steel pipe concrete frame post is arranged at steel plate concrete shear wall two ends, promptly around steel plate concrete shear wall intersection; Said steel pipe concrete frame post is made up of the concrete of interior pipe (1) and interior filling thereof; In the superimposed mild steel sleeve pipe (2) that is provided with of bottom outside of pipe (1), mild steel sleeve pipe (2) put in the bottom ground or basic end face (9) and with its anchoring; Be embedded with high-ductility composite material (7) between interior pipe (1) and the mild steel sleeve pipe (2).
2. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 1 tube, it is characterized in that: said steel pipe concrete frame post is rectangle, circle or table tennis bat tee section.
3. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 2 tube; It is characterized in that: the height of mild steel sleeve pipe (2) end face above ground level or basic (9) of said steel pipe concrete frame post is 1.0h; Wherein, h is the diameter of rectangular shaped rim column length limit size or circular frame columns.
4. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 1 tube, it is characterized in that: said shear wall steel plate (3) is individual layer or bilayer.
5. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 1 tube, it is characterized in that: said shear wall steel plate (3) is provided with and is used to socket the hole that reinforcing bar (6) passes.
6. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 1 tube, it is characterized in that: the thickness of said mild steel sleeve pipe (2) is not less than the thickness of the interior pipe (1) of steel pipe concrete frame post.
7. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 1 tube, it is characterized in that: the thickness of said high-ductility composite material (7) is not less than the thickness of mild steel sleeve pipe (2), and is not less than 20mm.
8. the built-in steel plate core of bottom band mild steel sleeve pipe steel pipe concrete frame as claimed in claim 1 tube; It is characterized in that: at the two-way bolt hole that offers in position of mild steel sleeve pipe (2) and the corresponding stack of interior pipe (1); Mild steel sleeve pipe (2) and interior pipe (1) interconnect through bolt (8); The diameter of the last perforate of mild steel sleeve pipe (2) is a bit larger tham the diameter of bolt (8); The diameter of bolt (8) is not less than the thickness of mild steel sleeve pipe (2) and interior pipe (1), and the quantity of bolt hole is no less than two rows, and the level of every row's bolt hole all is not more than 200mm with vertical spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204812166U CN202380574U (en) | 2011-11-28 | 2011-11-28 | Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204812166U CN202380574U (en) | 2011-11-28 | 2011-11-28 | Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame |
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| Publication Number | Publication Date |
|---|---|
| CN202380574U true CN202380574U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204812166U Withdrawn - After Issue CN202380574U (en) | 2011-11-28 | 2011-11-28 | Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame |
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| CN (1) | CN202380574U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409756A (en) * | 2011-11-28 | 2012-04-11 | 北京工业大学 | Steel pipe concrete frame built-in steel plate core barrel with soft steel sleeve at bottom and manufacturing method thereof |
| CN103233509A (en) * | 2013-04-28 | 2013-08-07 | 东南大学 | Double-steel-sheet and concrete combined core-tube structure with built-in corrugated steel sheets |
| CN105350721A (en) * | 2015-10-28 | 2016-02-24 | 昆明理工大学 | Preparation method and application of open-spandrel steel section reinforcing bar with a circular hole |
| CN105401694A (en) * | 2015-10-28 | 2016-03-16 | 昆明理工大学 | Manufacturing method of truss type steel rib with circular holes and application of truss type steel rib |
| CN106499120A (en) * | 2016-10-14 | 2017-03-15 | 北京工业大学 | A kind of underground structure N-shaped that is used for connects Prefabricated spilt post |
-
2011
- 2011-11-28 CN CN2011204812166U patent/CN202380574U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409756A (en) * | 2011-11-28 | 2012-04-11 | 北京工业大学 | Steel pipe concrete frame built-in steel plate core barrel with soft steel sleeve at bottom and manufacturing method thereof |
| CN102409756B (en) * | 2011-11-28 | 2013-11-27 | 北京工业大学 | Steel tube concrete frame inbuilt steel plate core cylinder with soft steel sleeves at bottom and producing method of steel tube concrete frame inbuilt steel plate core cylinder |
| CN103233509A (en) * | 2013-04-28 | 2013-08-07 | 东南大学 | Double-steel-sheet and concrete combined core-tube structure with built-in corrugated steel sheets |
| CN103233509B (en) * | 2013-04-28 | 2015-04-08 | 东南大学 | Double-steel-sheet and concrete combined core-tube structure with built-in corrugated steel sheets |
| CN105350721A (en) * | 2015-10-28 | 2016-02-24 | 昆明理工大学 | Preparation method and application of open-spandrel steel section reinforcing bar with a circular hole |
| CN105401694A (en) * | 2015-10-28 | 2016-03-16 | 昆明理工大学 | Manufacturing method of truss type steel rib with circular holes and application of truss type steel rib |
| CN106499120A (en) * | 2016-10-14 | 2017-03-15 | 北京工业大学 | A kind of underground structure N-shaped that is used for connects Prefabricated spilt post |
| CN106499120B (en) * | 2016-10-14 | 2018-08-07 | 北京工业大学 | One kind connecting Prefabricated spilt column for underground structure N-shaped |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120815 Effective date of abandoning: 20131127 |
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| RGAV | Abandon patent right to avoid regrant |