CN102409809B - Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof - Google Patents
Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof Download PDFInfo
- Publication number
- CN102409809B CN102409809B CN2011103854819A CN201110385481A CN102409809B CN 102409809 B CN102409809 B CN 102409809B CN 2011103854819 A CN2011103854819 A CN 2011103854819A CN 201110385481 A CN201110385481 A CN 201110385481A CN 102409809 B CN102409809 B CN 102409809B
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- mild steel
- steel sleeve
- inner tube
- core concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a concrete-filled steel tube column provided with a soft steel bushing and embedded with a high-tenacity material. The concrete-filled steel tube column comprises an inner pipe (1), core concrete (2), a soft steel bushing (3), bolts (4) and a high-tenacity composite material (6). In the invention, the bottom of an ordinary concrete-filled steel tube is provided with the soft steel bushing (3); and the high-tenacity composite material (6) is embedded into the space between the soft steel bushing (3) and the inner pipe (1). Under the action of conventional earthquake, the bottom soft steel bushing and an concrete-filled steel tube column have high overall working performance, high rigidity and high strength; and under the action of rare earthquake, shearing damage to the bolts is severe, the connection between an inner pipe and an outer pipe is weakened, the co-working performance degenerates, the ductility and energy consumption functions of the inner pipe and the outer pipe are brought into full play respectively, the overall regality is reduced, the structural period is prolonged, and the earthquake action is reduced; and after the soft steel bushing is arranged, an earthquake fortification line is increased, the structural safety is enhanced, and early impairment and damage to a high-strength steel plate are prevented and delayed.
Description
Technical field
The present invention relates to steel core concrete column and the practice of the embedded high-toughness material of a kind of root bottom part band mild steel sleeve pipe, belong to the energy dissipation and damping control field in building structure.
Background technology
Society is in progress, and people's living standard is also improving constantly, and various forms of buildings emerge in an endless stream, and meets the different buildings of function of using and also arises at the historic moment.No matter be height or profile, very large development is arranged, this just need to have new theory and new technology to support the construction of this class building.Under the demand of social development, encased structures also just produces thereupon.
Concrete filled steel tube is comprised of steel pipe and concrete bi-material, and due to the effect of pipe inner concrete, the stability of steel pipe wallboard improves a lot, and avoids or has delayed the too early generation cripling of steel pipe wallboard; The effect of contraction of while steel pipe to its core concrete, make concrete be in the stress state of high complexity, thereby concrete intensity is improved, plasticity and toughness properties improve, the combination of bi-material has made up shortcoming separately, makes its material property obtain giving full play to.
When finding the encased structures premium properties by a large amount of tests, Chinese scholars also finds there is the some shortcomings part.Encased structures is under severe earthquake action, destroy position and generally all occur in its bottom, it is bent that local drum easily occurs in the steel pipe wallboard, afterwards due to steel pipe wallboard depression of bearing force, inner concrete effect of contraction is weakened, cause steel pipe bight weld seam to be torn, it is serious crisp broken that steel pipe bulges the core concrete at partial response position, and now its superstructure may also not reach surrender, the performance of material is not fully exerted, caused the serious waste of material, a large amount of earthquake phenomenons have also proved this point.
The seismic design that is applied as building of mild-steel energy-consumption cushion technique and high-toughness material and seismic hardening provide a brand-new thinking, for high-rise and super highrise building realize that damping control and anti-seismic performance provide an effective approach.
Summary of the invention
Technical problem to be solved by this invention is: improve the anti-seismic performance of encased structures, delay or avoid the destruction that causes structure or member due to encased structures bottom steel pipe drum song, give full play to the Potential performance of material.The present invention, in order to address this problem, has proposed steel core concrete column and the practice of a kind of bottom with the embedded high-toughness material of mild steel sleeve pipe.
The technical solution used in the present invention is:
Bottom is with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, and it is characterized in that: described steel core concrete column comprises inner tube, core concrete, mild steel sleeve pipe, bolt and high-ductility composite material; Inner tube inside is perfused with core concrete, and tube wall inboard, bottom or the outside of inner tube are socketed with the mild steel sleeve pipe, and inner tube and mild steel sleeve pipe are bolted fixing; Between inner tube and mild steel sleeve pipe, be embedded with high-ductility composite material; The mild steel sleeve pipe put in the ground of bottom or basic end face and with its anchoring, anchorage length should meet the requirement of design.
Described steel core concrete column concrete filled steel tube is circle or square-section.
Described inner tube is rectangular steel pipe or round steel pipe.
Above ground level or the height basic end face of described mild steel sleeve pipe is 1.0h, and wherein h is the diameter in the long limit size in rectangular steel pipe cross section or round steel pipe cross section.Namely strengthen the plastic hinge territory of steel core concrete column, delay or avoid the destruction of concrete filled steel tube column bottom, improve its seismic bearing capacity and energy dissipation capacity.
Described high-ductility composite material comprises polymer modified cement-concrete, rubber crumbs cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.
The position corresponding with inner tube at the mild steel sleeve pipe is provided with bolt hole, and the diameter of mild steel sleeve pipe upper bolt hole is a bit larger tham the diameter of bolt, and the diameter of bolt is not less than the thickness of mild steel sleeve pipe and inner tube.
The quantity of bolt hole should be according to the actual requirement of engineering setting, and should not be less than two rows, the level of every row's bolt hole and vertical spacing are not more than 200mm, with the high-ductility composite material that guarantees mild steel sleeve pipe and inner tube and embedding, contact closely, and the Kong Jing of same row's different directions, apart from being not less than 20mm, makes bolt can pass smoothly inner tube and mild steel sleeve pipe and reduce the weakening to the same level cross section.
The thickness of mild steel sleeve pipe is not less than the wall thickness of inner tube.
The thickness of high-ductility composite material is not less than the thickness of mild steel sleeve pipe, and is not less than 20mm.
Above-mentioned bottom is with the practice of the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, and production order is as follows:
For the situation of mild steel casing pipe sleeve at the inner tube lateral surface:
1) at the mild steel sleeve pipe corresponding position two-way reservation bolt hole of inner tube with its bottom;
2) corresponding nut in the lateral surface correspondence position welding at the reserved bolt hole place of inner tube, be placed between inner tube and mild steel sleeve pipe nut;
3) by the mild steel casing pipe sleeve in the inner tube bottom tube wall outside, and the mild steel sleeve pipe of inner tube and bottom is carried out to correct location, make bolt hole on the same row of inner tube and mild steel sleeve pipe on the same level height;
4) at reserved bolt hole place, penetrate bolt, by the nut screwing clamping bolt between inner tube and mild steel sleeve pipe, then in inner tube, pour into core concrete;
5) also fastening nut on the bolt exposed in the outside, form certain precompression, embeds high-ductility composite material between mild steel sleeve pipe and inner tube, after moulding, is the steel core concrete column of bottom with the embedded high-toughness material of mild steel sleeve pipe;
For the situation of mild steel casing pipe sleeve at the inner tube medial surface:
1) at the mild steel sleeve pipe corresponding position two-way reservation bolt hole of inner tube with its bottom;
2) corresponding nut in the medial surface correspondence position welding at the reserved bolt hole place of inner tube, be placed between inner tube and mild steel sleeve pipe nut;
3) by the mild steel casing pipe sleeve in tube wall inboard, inner tube bottom, and the mild steel sleeve pipe of inner tube and bottom is carried out to correct location, make bolt hole on the same row of inner tube and mild steel sleeve pipe on the same level height;
4) at reserved bolt hole place, penetrate bolt, by the nut screwing clamping bolt between inner tube and mild steel sleeve pipe;
5) also fastening nut on the bolt exposed in the outside, form certain precompression, between mild steel sleeve pipe and inner tube, embed high-ductility composite material, build again afterwards core concrete, after moulding, be the steel core concrete column of bottom with the embedded high-toughness material of mild steel sleeve pipe.
Bottom of the present invention is with steel core concrete column and the practice of the embedded high-toughness material of mild steel sleeve pipe, due to steel core concrete column after concreting, tight a bolt after producing precompression and embed again high-ductility composite material, the rigidity of mild steel sleeve pipe and internal steel pipe jointing part position with respect to steel duct concrete rigidity a little less than, formed an iron hand in a velvet glove structure, this structure is conducive to the energy dissipation capacity under geological process, can give full play to the energy dissipation capacity of outside mild-steel energy-consumption steel pipe and inner steel pipe, make it under geological process, show more excellent performance.
Bottom of the present invention is with steel core concrete column and the practice of the embedded high-toughness material of mild steel sleeve pipe, and its inner high tensile steel tube can bear larger load action, saving steel, but repeatedly under large deformation, easily rouse song or rupture failure.Experimental study under Frequency Cyclic Static Loading shows, the destruction of steel core concrete column mainly is surrender, flexing and the rupture failure of root steel pipe.
Beneficial effect
With the common steel tube concrete column, compare, the present invention has the following advantages:
Under the frequently occurred earthquake effect, concrete filled steel tube is stressed less, now bottom mild steel sleeve pipe and inner tube friction energy-dissipating under the bolt pressure-acting; The now existence of bolt has not only improved its friction energy-dissipating ability, and mild steel sleeve pipe and inner tube are connected as a single entity, and its integral working is good, and rigidity is large, and intensity is also large, has good seismic bearing capacity; Under the rarely occurred earthquake effect, it is serious that bolt is cut damage, the contact of inner tube and mild steel sleeve pipe weakens, the co-operation performance degradation, and inner tube, mild steel sleeve pipe start to give full play to separately its ductility and power consumption effect, structure collectivity rigidity reduces, natural vibration period is elongated, and geological process reduces, after the concrete filled steel tube column bottom increases mild steel sleeve pipe and high-ductility composite material, be equivalent to increase anti-vibration defense lines one, improved the safety of structure.
The outside in the scope of plastic hinge territory, concrete filled steel tube column bottom adds the mild steel sleeve pipe, embed again high-ductility composite material, under the rarely occurred earthquake effect, at first outside mild steel sleeve pipe is surrendered, consume the energy of earthquake input structure, until structure or component damage can be brought into play its drag and ductility effect, played the effect that prevents or delay the too early damage and fracture of high-strength steel sheet.
The accompanying drawing explanation
Fig. 1 is the floor map of bottom with the rectangular steel-tube concrete column of the embedded high-toughness material of mild steel sleeve pipe;
Fig. 2 is the floor map of bottom with the circular steel tube concrete post of the embedded high-toughness material of mild steel sleeve pipe;
Fig. 3 is the A-A sectional drawing in Fig. 1;
Fig. 4 is the B-B sectional drawing in Fig. 1;
Fig. 5 is the A-A section in Fig. 2;
Fig. 6 is the B-B sectional drawing in Fig. 2;
Fig. 7 is the floor map of mild steel sleeve pipe at the rectangular steel-tube concrete column of column body;
Fig. 8 is the floor map of mild steel sleeve pipe at the circular steel tube concrete post of column body;
Fig. 9 is the A-A sectional drawing in Fig. 7;
Figure 10 is the A-A sectional drawing in Fig. 8;
Wherein: 1-inner tube, 2-core concrete, 3-mild steel sleeve pipe (outer tube), 4-screw rod, 5-nut, 6-high-ductility composite material, 7-ground or basic end face.
The specific embodiment
The present invention will be further described below in conjunction with specific embodiment:
As shown in Figure 1, bottom comprises inner tube 1, core concrete 2, mild steel sleeve pipe 3, bolt 4 and high-ductility composite material 6 with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe.This bottom with the sectional drawing of the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe and the practice as shown in Figure 3 and Figure 4.Inner tube 1 inside is perfused with core concrete 2, and tube wall inboard, bottom or the outside of inner tube 1 are socketed with mild steel sleeve pipe 3, and inner tube 1 is connected and fixed by bolt 4 with mild steel sleeve pipe 3; Between inner tube 1 and mild steel sleeve pipe 3, be embedded with high-ductility composite material 6; Mild steel sleeve pipe 3 put in the ground of bottom or basic end face 7 and with its anchoring.The steel core concrete column concrete filled steel tube is square-section.Inner tube 1 is rectangular steel pipe.The height of mild steel sleeve pipe 3 end face 7 above ground level or basic is 1.0h, and wherein h is long limit, rectangular steel pipe cross section size.High-ductility composite material 6 comprises polymer modified cement-concrete, rubber crumbs cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.At mild steel sleeve pipe 3 and the corresponding position of inner tube 1, be provided with bolt hole, the diameter of mild steel sleeve pipe 3 upper bolt holes is a bit larger tham the diameter of bolt 4, and the diameter of bolt 4 is not less than the thickness of mild steel sleeve pipe 3 and inner tube 1.The quantity of bolt hole should be according to the actual requirement of engineering setting, and should not be less than two rows, and the level of every row's bolt hole and vertical spacing are not more than 200mm, and the Kong Jing of same row's different directions is apart from being not less than 20mm.The thickness of mild steel sleeve pipe 3 is not less than the wall thickness of inner tube 1.The thickness of high-ductility composite material 6 is not less than the thickness of mild steel sleeve pipe 3, and is not less than 20mm.Its production order is as follows:
1) at inner tube 1 and the corresponding position two-way reservation bolt hole of mild steel sleeve pipe 3 bottom it;
2) corresponding nut 5 in the lateral surface correspondence position welding at the reserved bolt hole place of inner tube 1, be placed between inner tube 1 and mild steel sleeve pipe 3 nut 5;
3) mild steel sleeve pipe 3 is enclosed within to the inner tube 1 bottom tube wall outside, and the mild steel sleeve pipe 3 of inner tube 1 and bottom is carried out to correct location, make bolt hole on the same row of inner tube 1 and mild steel sleeve pipe 3 on the same level height;
4) at reserved bolt hole place, penetrate bolt 4, tight a bolt 4 by the nut 5 between inner tube 1 and mild steel sleeve pipe 3, then perfusion core concrete 2 in inner tube 1;
5) also fastening nut 5 on the bolt 4 exposed in the outside, form certain precompression, between mild steel sleeve pipe 3 and inner tube 1, embeds high-ductility composite material 6, after moulding, is the steel core concrete column of bottom with the embedded high-toughness material of mild steel sleeve pipe.
As shown in Figure 2, bottom is circular with the section form of the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, and its sectional drawing as shown in Figure 5 and Figure 6.Its basic principle and anti-seismic performance and preparation method are substantially the same manner as Example 1.
As shown in Figure 7, in order to guarantee attractive in appearance on the outer facade of structure, bottom is placed on the inside of inner tube 1 with the mild steel sleeve pipe 3 of the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, and its sectional drawing as shown in Figure 9.So exteriorly, this bottom is as broad as long with steel core concrete column and the common steel tube concrete column of the embedded high-toughness material of mild steel sleeve pipe, but its anti-seismic performance obviously is better than the common steel tube concrete column.The present embodiment should be first embeds high-ductility composite material in inside, afterwards concreting again; In concrete filled steel tube inside, higher to construction technical requirement due to high-ductility composite material, under the condition met design requirement, also can no longer embed high-ductility composite material, direct concreting, its preparation method and embodiment 1 are basic identical.
As shown in Figure 8, in order to guarantee attractive in appearance on the outer facade of structure, bottom is placed on the inside of cylinder with the mild steel sleeve pipe of the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, and its sectional drawing as shown in figure 10.The difference of the present embodiment and embodiment 3 is the difference of section form, and the present embodiment is circular, and other is basically identical with embodiment 3.
Be more than exemplary embodiments of the present invention, enforcement of the present invention is not limited to this.
Claims (10)
1. bottom, with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, is characterized in that: described steel core concrete column comprises inner tube (1), core concrete (2), mild steel sleeve pipe (3), bolt (4) and high-ductility composite material (6); Inner tube (1) inside is perfused with core concrete (2), and tube wall inboard, bottom or the outside of inner tube (1) are socketed with mild steel sleeve pipe (3), and inner tube (1) is connected and fixed by bolt (4) with mild steel sleeve pipe (3); Between inner tube (1) and mild steel sleeve pipe (3), be embedded with high-ductility composite material (6); Mild steel sleeve pipe (3) put in the ground of bottom or basic end face (7) and with its anchoring.
2. bottom as claimed in claim 1, with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, is characterized in that: described steel core concrete column concrete filled steel tube is circle or square-section.
3. bottom as claimed in claim 1, with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, is characterized in that: described inner tube (1) is rectangular steel pipe or round steel pipe.
4. bottom as claimed in claim 3 is with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, it is characterized in that: the height of described mild steel sleeve pipe (3) end face above ground level or basic (7) is 1.0h, and wherein h is the diameter in the long limit size in rectangular steel pipe cross section or round steel pipe cross section.
5. bottom as claimed in claim 1, with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, is characterized in that: described high-ductility composite material (6) comprises polymer modified cement-concrete, rubber crumbs cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.
6. bottom as claimed in claim 1 is with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, it is characterized in that: be provided with bolt hole at mild steel sleeve pipe (3) and the corresponding position of inner tube (1), the diameter of mild steel sleeve pipe (3) upper bolt hole is a bit larger tham the diameter of bolt (4), and the diameter of bolt (4) is not less than the thickness of mild steel sleeve pipe (3) and inner tube (1).
7. bottom as claimed in claim 6 is with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, it is characterized in that: the quantity of bolt hole should be according to the actual requirement of engineering setting, and should not be less than two rows, the level of every row's bolt hole and vertical spacing are not more than 200mm, and the Kong Jing of same row's different directions is apart from being not less than 20mm.
8. bottom as claimed in claim 1, with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, is characterized in that: the thickness of mild steel sleeve pipe (3) is not less than the wall thickness of inner tube (1).
9. bottom as claimed in claim 1, with the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, is characterized in that: the thickness of high-ductility composite material (6) is not less than the thickness of mild steel sleeve pipe (3), and is not less than 20mm.
10. bottom as described as one of claim 1-9 is with the practice of the steel core concrete column of the embedded high-toughness material of mild steel sleeve pipe, and it is characterized in that: production order is as follows:
For mild steel sleeve pipe (3), be enclosed within the situation of inner tube (1) lateral surface:
1) at inner tube (1) and the corresponding position two-way reservation bolt hole of mild steel sleeve pipe (3) bottom it;
2) at the upper corresponding nut (5) of lateral surface correspondence position welding at the reserved bolt hole place of inner tube (1), nut (5) is placed between inner tube (1) and mild steel sleeve pipe (3);
3) mild steel sleeve pipe (3) is enclosed within to the tube wall outside, inner tube (1) bottom, and the mild steel sleeve pipe (3) of inner tube (1) and bottom is carried out to correct location, make bolt hole on the same row of inner tube (1) and mild steel sleeve pipe (3) on the same level height;
4) at reserved bolt hole place, penetrate bolt (4), tight a bolt (4) by the nut (5) between inner tube (1) and mild steel sleeve pipe (3), then perfusion core concrete (2) in inner tube (1);
5) also fastening nut (5) on the bolt exposed in the outside (4), form certain precompression, between mild steel sleeve pipe (3) and inner tube (1), embed high-ductility composite material (6), after moulding, be the steel core concrete column of bottom with the embedded high-toughness material of mild steel sleeve pipe;
For mild steel sleeve pipe (3), be enclosed within the situation of inner tube (1) medial surface:
1) at inner tube (1) and the corresponding position two-way reservation bolt hole of mild steel sleeve pipe (3) bottom it;
2) at the upper corresponding nut (5) of medial surface correspondence position welding at the reserved bolt hole place of inner tube (1), nut (5) is placed between inner tube (1) and mild steel sleeve pipe (3);
3) mild steel sleeve pipe (3) is enclosed within to tube wall inboard, inner tube (1) bottom, and the mild steel sleeve pipe (3) of inner tube (1) and bottom is carried out to correct location, make bolt hole on the same row of inner tube (1) and mild steel sleeve pipe (3) on the same level height;
4) at reserved bolt hole place, penetrate bolt (4), by the nut (5) between inner tube (1) and mild steel sleeve pipe (3) tight a bolt (4);
5) also fastening nut (5) on the bolt exposed in the outside (4), form certain precompression, between mild steel sleeve pipe (3) and inner tube (1), embed high-ductility composite material (6), build again afterwards core concrete (2), after moulding, be the steel core concrete column of bottom with the embedded high-toughness material of mild steel sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103854819A CN102409809B (en) | 2011-11-28 | 2011-11-28 | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103854819A CN102409809B (en) | 2011-11-28 | 2011-11-28 | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102409809A CN102409809A (en) | 2012-04-11 |
| CN102409809B true CN102409809B (en) | 2013-11-27 |
Family
ID=45912115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103854819A Expired - Fee Related CN102409809B (en) | 2011-11-28 | 2011-11-28 | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102409809B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767247A (en) * | 2012-07-06 | 2012-11-07 | 河海大学 | Hole-type steel-pipe externally-restricted buckling-restrained supporting component |
| CN103603464B (en) * | 2013-10-21 | 2015-10-28 | 清华大学 | Consume energy crashproof station post |
| CN107270111A (en) * | 2017-06-13 | 2017-10-20 | 清华大学 | A kind of concentric double pipe structure |
| CN112609921A (en) * | 2020-11-20 | 2021-04-06 | 石家庄犀利混凝土切割加固技术有限公司 | Elevator shaft frame system and construction method |
| CN114108810A (en) * | 2021-11-29 | 2022-03-01 | 扬州大学 | Composite enhanced steel sleeve joint for assembling FRP pipe truss and installation method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5012622A (en) * | 1985-03-05 | 1991-05-07 | Shimizu Construction Co., Ltd. | Structural filler filled steel tube column |
| JP2005155036A (en) * | 2003-11-20 | 2005-06-16 | Sumitomo Mitsui Construction Co Ltd | Column of building and rigid-frame structure using this column |
| CN2763376Y (en) * | 2004-12-30 | 2006-03-08 | 北京工业大学 | Energy dissipation device of lead grouted steel pipe bundle |
| CN201762818U (en) * | 2010-09-16 | 2011-03-16 | 南京林业大学 | FRP-rubber-steel compound pipe concrete structure |
| CN102108761A (en) * | 2011-03-02 | 2011-06-29 | 大连理工大学 | Fiber reinforced plastics-steel composite pipe restricted structural steel high-strength concrete column |
| CN202380638U (en) * | 2011-11-28 | 2012-08-15 | 北京工业大学 | Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials |
-
2011
- 2011-11-28 CN CN2011103854819A patent/CN102409809B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102409809A (en) | 2012-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108442569B (en) | Function-recoverable energy consumption reinforced concrete shear wall and construction method thereof | |
| CN102409783B (en) | Manufacturing method of bottom double composite section steel shear wall with reinforced concrete frame and inside-hidden steel plate | |
| CN102409809B (en) | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof | |
| CN108894360A (en) | Assembled embeds damping interlayer double steel plate combined concrete shear wall and its installation method | |
| CN102535749A (en) | Double-function multi-cavity steel tube concrete column provided with soft steel sleeve at bottom, and manufacturing method thereof | |
| CN102409782A (en) | Steel tube concrete frame inbuilt steel plate shear wall with soft steel sleeves at bottom and producing method of steel tube concrete frame inbuilt steel plate shear wall | |
| CN202380607U (en) | Shearing wall with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame | |
| CN109868897A (en) | Need to lay the assembled RC frame structure of anti-buckling support based on storey stiffness | |
| CN104405084A (en) | Dual steel pipe-encased concrete anti-seismic column with built-in rubber mixture and construction method | |
| CN102409808A (en) | Steel tube concrete superposed column with mild steel casing outer packed concrete at bottom and preparation method thereof | |
| CN202380574U (en) | Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame | |
| CN202380638U (en) | Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials | |
| CN203080744U (en) | Steel plate and high-strength concrete combination shear wall | |
| CN208267154U (en) | A kind of recoverable function energy consumption reinforced concrete shear wall | |
| CN102409756B (en) | 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 | |
| CN102409755B (en) | Section steel concrete frame inbuilt steel plate core cylinder with doubly superimposed bottom and producing method thereof | |
| CN211037485U (en) | Connecting system of prefabricated wood-concrete combined structure | |
| CN208815980U (en) | A kind of steel plate concrete assembled wall board anti-side energy-consuming device for modular architectural | |
| CN206941865U (en) | A kind of power consumption assembled combined steel plate shearing force wall with damper | |
| CN202380606U (en) | Bottom dual-overlapped shear wall comprising hidden steel plates in steel reinforced concrete frame | |
| CN101974940A (en) | Joint of buckling restrained brace and concrete beam | |
| CN202380639U (en) | Steel tube concrete composite column with bottom soft steel sleeve and encased concrete | |
| CN204728356U (en) | The hardened system of generation power foundation of wind power cyclic group plinth | |
| CN202787662U (en) | Double-functional multi-cavity steel pipe concrete pile with soft steel sleeve at bottom | |
| CN211645953U (en) | Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20201128 |