CN205077725U - Year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post - Google Patents
Year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post Download PDFInfo
- Publication number
- CN205077725U CN205077725U CN201520810975.0U CN201520810975U CN205077725U CN 205077725 U CN205077725 U CN 205077725U CN 201520810975 U CN201520810975 U CN 201520810975U CN 205077725 U CN205077725 U CN 205077725U
- Authority
- CN
- China
- Prior art keywords
- square steel
- spiral stirrup
- concrete
- strength concrete
- steel pipe
- 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
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post, include square steel tube, wire spiral, indulge the muscle, transversely radiate reinforcing bar and high -strength concrete, indulge the muscle and constitute single steel reinforcement cage with wire spiral ligature or welding, single steel reinforcement cage has a plurality of of diameter difference, and from big to small overlaps in proper order and establishes to form section of thick bamboo structure reinforcing bar cage in the section of thick bamboo with horizontal radiation reinforcement or welding respectively, the square steel tube inner chamber is placed in to section of thick bamboo structure reinforcing bar cage in the section of thick bamboo, and the high -strength concrete is built to the square steel tube inner chamber. The utility model discloses a high -strength concrete post simple structure, construction convenience, ductility be good, bear the weight of the dynamic height and anti -seismic performance is superior, is applicable to the heel post that super high -rise building, the heavy factory building of industry and other bore special construction such as heavy load.
Description
Technical field
The utility model belongs to the vertical member of load-carrying members in field of civil engineering, is specifically related to a kind of year wheeledly join multi-spiral stirrup high-concrete filled square steel tubular post.
Background technology
In field of civil engineering, there is diversity development in constructional materials and combination of materials form, the material wherein the most extensively adopted is steel and concrete, main three kinds of steel concrete, steel reinforced concrete, concrete filled steel tube is divided into from the different of Combined concrete form by steel, by concrete strength, concrete is divided into ordinary concrete and high-strength concrete.
Join spiral stirrup steel concrete and belong to steel concrete, be mainly used in circular frame trestle and pile foundation.The feature of spiral stirrup steel concrete is: when post pressurized, spiral stirrup can produce stronger horizontal restrain power to concrete, can effectively improve concrete ductility, and the bearing capacity of pillar can be improved in certain limit, this feature of spiral stirrup steel concrete is similar to concrete filled steel tube.In addition, spiral stirrup reinforcing cage has easy to make, the advantage that speed of application is fast, makes it obtain extensive use in pile foundation field.But the design of " Code for design of concrete structures " (GB50010-2012) to the reinforced concrete post of joining spiral stirrup gives some restrictive conditions, aspect ratio L/D≤12 of post, and the intensity not considering spiral stirrup outer concrete.This is because, its effect of contraction of spiral stirrup competence exertion when pillar mainly bears axial load, and it only produces constraint to the concrete of spiral stirrup inside.
The main cyclotomy of concrete filled steel tube, the two kinds of section forms in side.Concrete filled steel tube feature: the core concrete of round steel pipe to its inside is about beam intensity, the advantage such as make that concrete filled steel tube tool bearing capacity is high, ductility good and anti-seismic performance is superior, but circular cross-section makes it have again deficiencies such as unfavorable architectural space is arranged, node is complicated.Concrete-Filled Square Steel Tube feature: bearing capacity and the ductility of comparing concrete filled steel tube Concrete-Filled Square Steel Tube are a bit weaker, but it has architectural space arrangement convenience, joint structure relatively simply and more by the advantage such as owner and architect's favor.On the whole, concrete filled steel tube and Concrete-Filled Square Steel Tube pluses and minuses separately have complementarity.How effectively both features being merged, learn from other's strong points to offset one's weaknesses, to form excellent in mechanical performance, new structure that overall economic efficiency is excellent, will be a technical thought with novelty.
Compare ordinary concrete, the typical feature of high-strength concrete is: intensity is high, and ductility is poor, easily brittle fracture occurs.In application aspect, the external intensity applied is up to C130, and the intensity of domestic application reaches far away this level, as China " high building structure tecnical regulations " (JGJ3-2010) advises that the concrete strength of octave earthquake zone should not higher than C70.The meaning of application high-strength concrete is that it can effectively reduce constructional materials consumption, economizes on resources, meets sustainable development circuit.The ductility how effectively improving high-strength concrete is one of key technical problem of high-strength concrete further genralrlization application.
At present, the scale of super highrise building, Loads of Long-span Bridges constantly increases, the size causing structural element constantly increases, as reached 597m in the building height of the mansion, Tianjin 117 built, the huge column section maximum length of concrete filled steel tube of its bottom reaches 22.8m, be greater than the huge pillar of 2m as this kind of breadth of section, its concrete shrinkage problem becomes particularly outstanding.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple structure, easy construction, ductility is good, bearing capacity is high and anti-seismic performance is superior year wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post.
The utility model solves the problems of the technologies described above with following technical scheme:
Year wheeled join multi-spiral stirrup high-concrete filled square steel tubular post, comprise square steel pipe, spiral stirrup, vertical muscle, horizontal radial steel reinforcement and high-strength concrete; Indulge muscle and spiral stirrup colligation or be welded to form monotubular reinforcing cage; Monotubular reinforcing cage has different multiple, sheathed successively from big to small of diameter, and respectively with horizontal radial steel reinforcement colligation or be welded to form tube in tube structure reinforcing cage; Tube in tube structure reinforcing cage is placed in square steel pipe inner chamber, and square steel pipe inner chamber builds high-strength concrete.
Described square steel pipe is hot-roll forming, or shaping by Plate Welding.
The described square steel pipe length of side >=600mm.
The distance of adjacent two monotubular reinforcing cages is not less than 100mm.
The pitch of described spiral stirrup is 50mm ~ 300mm, and is not more than 1/5th of screw diameter.
The diameter of described monotubular reinforcing cage is 0.3 ~ 0.9 times of the length of side of square steel pipe.
The central axis of monotubular reinforcing cage and square steel pipe central axis overlap.
Substantive distinguishing features of the present utility model and advantage are:
High-strength concrete column of the present utility model, the regularity of distribution of inner steel bar copies the annual ring of trees trunk.RHS-joints simple structure of the present utility model, easy construction, is beneficial to architectural space and arranges; Strength of high strength concrete is high, improves element bearing capacity, saves constructional materials; Spiral stirrup molding procedure is simple.Tube in tube structure reinforcing cage and square steel pipe provide multiple constraint effect to core high-strength concrete, effectively improve the ductility of high-strength concrete, decrease the amount of contraction of the inner high-strength concrete of square steel pipe, bearing capacity is high, be applicable to super highrise building, industrial heavy factory building and other bear the load-bearing pillar of the special constructions such as heavy load.
Accompanying drawing explanation
Fig. 1 is the utility model year wheeled structural representation of joining multi-spiral stirrup high-concrete filled square steel tubular post.In figure: 1-spiral stirrup, 2-vertical muscle, 4-horizontal radial steel reinforcement, 6-square steel pipe, 7-high-strength concrete.
Fig. 2 is the utility model year wheeled axial compression of high-concrete filled square steel tubular post and mean strain relation curve comparison diagram of joining multi-spiral stirrup high-concrete filled square steel tubular post and not joining reinforcing bar.In figure, a: the utility model year wheeled axial compression and mean strain relation curve of joining multi-spiral stirrup high-concrete filled square steel tubular post, b: axial compression and the mean strain relation curve of not joining the high-concrete filled square steel tubular post of reinforcing bar.
Detailed description of the invention
Embodiment of the present utility model is introduced in detail below in conjunction with drawings and Examples, but not as the restriction to the utility model protection domain.
As shown in Figure 1, year is wheeled joins multi-spiral stirrup high-concrete filled square steel tubular post, comprises square steel pipe 6, spiral stirrup 1, vertical muscle 2, horizontal radial steel reinforcement 4 and high-strength concrete 7.
Square steel pipe 6 length of side is 2000mm, and be that the Plate Welding of 40mm is shaping by wall thickness, steel strength is Q390.Spiral stirrup 1 adopts diameter to be the reinforcing bar of 12mm, and vertical muscle 2 and horizontal radial steel reinforcement 4 all adopt diameter to be the reinforcing bar of 20mm, and above-mentioned steel strength grade is HRB400.The pitch of spiral stirrup 1 is 100mm.The strength grade of high-strength concrete 7 is C80.
Vertical muscle 2 has many, is welded to form monotubular reinforcing cage respectively with spiral stirrup 1.
Monotubular reinforcing cage has 4, and diameter is respectively 0.3 times, 0.5 times, 0.7 times and 0.9 times of the length of side of square steel pipe 6, and 4 monotubular reinforcing cages are sheathed successively from big to small, and the distance between adjacent two monotubular reinforcing cages is 200mm.
4 monotubular reinforcing cages are welded to form tube in tube structure reinforcing cage with horizontal radial steel reinforcement 4 respectively; Tube in tube structure reinforcing cage is placed in square steel pipe 6 inner chamber, and square steel pipe 6 inner chamber builds high-strength concrete 7.
The central axis of above-mentioned 4 monotubular reinforcing cages and square steel pipe 6 all overlaps.
To the year of the present utility model wheeled high-concrete filled square steel tubular post of joining multi-spiral stirrup high-concrete filled square steel tubular post and not joining reinforcing bar analogue formation carry out mechanical property test respectively, result of the test as shown in Figure 2, when year of the present utility model is wheeled join the multi-spiral stirrup high-concrete filled square steel tubular post steel of 26.8% more multiplex than the high-concrete filled square steel tubular post of not joining reinforcing bar time, its bearing power increase 803kN, amplification is 39.1%; Ductility Index brings up to 7.20 from 2.73, and amplification is 163.7%.Show thus, year of the present utility model is wheeled joins the bearing capacity of multi-spiral stirrup high-concrete filled square steel tubular post and anti-seismic performance is all significantly improved.
Claims (7)
1. year wheeled join multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: comprise square steel pipe, spiral stirrup, vertical muscle, horizontal radial steel reinforcement and high-strength concrete; Indulge muscle and spiral stirrup colligation or be welded to form monotubular reinforcing cage; Monotubular reinforcing cage has different multiple, sheathed successively from big to small of diameter, and respectively with horizontal radial steel reinforcement colligation or be welded to form tube in tube structure reinforcing cage; Tube in tube structure reinforcing cage is placed in square steel pipe inner chamber, and square steel pipe inner chamber builds high-strength concrete.
2. year according to claim 1 wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: described square steel pipe is hot-roll forming, or shaping by Plate Welding.
3. year according to claim 1 wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: the described square steel pipe length of side >=600mm.
4. year according to claim 1 wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: the distance of adjacent two monotubular reinforcing cages is not less than 100mm.
5. year according to claim 1 wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: the pitch of described spiral stirrup is 50mm ~ 300mm, and is not more than 1/5th of screw diameter.
6. year according to claim 1 wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: the diameter of described monotubular reinforcing cage is 0.3 ~ 0.9 times of the length of side of square steel pipe.
7. year according to claim 1 wheeledly joins multi-spiral stirrup high-concrete filled square steel tubular post, it is characterized in that: the central axis of monotubular reinforcing cage and square steel pipe central axis overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520810975.0U CN205077725U (en) | 2015-10-19 | 2015-10-19 | Year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520810975.0U CN205077725U (en) | 2015-10-19 | 2015-10-19 | Year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205077725U true CN205077725U (en) | 2016-03-09 |
Family
ID=55430139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520810975.0U Expired - Fee Related CN205077725U (en) | 2015-10-19 | 2015-10-19 | Year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205077725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201144A (en) * | 2015-10-19 | 2015-12-30 | 广西大学 | Tree ring type high-strength concrete filled square steel tube column equipped with multiple spiral stirrups |
| CN107605102A (en) * | 2017-10-12 | 2018-01-19 | 贺州学院 | One kind fire prevention thermal insulation assembly concrete rod structure and its production technology |
-
2015
- 2015-10-19 CN CN201520810975.0U patent/CN205077725U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201144A (en) * | 2015-10-19 | 2015-12-30 | 广西大学 | Tree ring type high-strength concrete filled square steel tube column equipped with multiple spiral stirrups |
| CN107605102A (en) * | 2017-10-12 | 2018-01-19 | 贺州学院 | One kind fire prevention thermal insulation assembly concrete rod structure and its production technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202831402U (en) | Concrete filled steel tubular column with inner-connected circular pipe and outer-sleeved concrete filled steel tube | |
| CN102383420B (en) | High-strength concrete prefabricated pile doped with fiber-reinforced plastic bar | |
| CN105201144A (en) | Tree ring type high-strength concrete filled square steel tube column equipped with multiple spiral stirrups | |
| CN102817375A (en) | Assembly type precast reinforced concrete inspection well system | |
| CN104963415A (en) | Circular steel tube constraint type steel concrete column and steel beam node structure | |
| CN102121246A (en) | Toughening prestressed centrifugal concrete pile | |
| CN208533868U (en) | A kind of novel arrangement of reinforcement hollow steel pipe high-strength concrete column | |
| CN105672576A (en) | Annual ring type reinforced high-strength concrete square column | |
| CN205077725U (en) | Year wheeled join in marriage multiple wire spiral square steel tube high -strength concrete post | |
| CN202194129U (en) | Composite prestress soil-blocking pile | |
| CN206928519U (en) | A kind of reinforced concrete combination post | |
| CN201943070U (en) | Toughened type prestress centrifugal concrete pile | |
| CN203741831U (en) | Steel structure of prestress high-strength concrete pipe pile body | |
| CN102433963A (en) | Lattice type single-row reinforcement crisscross-section concrete column and manufacture method thereof | |
| CN204715540U (en) | A kind of round steel pipe binding type steel concrete column and steel beam joint structure | |
| CN204715539U (en) | A kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure | |
| CN202627324U (en) | Lattice type single-row reinforcement bar cross-shaped-section concrete column | |
| CN101974958A (en) | Steel pipe concrete column of I-shaped FRP section | |
| CN103821142A (en) | Steel structure of pre-stress high-strength concrete pipe pile body | |
| CN205531020U (en) | Join in marriage and bundle wire spiral square steel tube high -strength concrete post | |
| CN116150844A (en) | Transmission line assembled rock anchor rod foundation series typical design drawing and design method | |
| CN105040828B (en) | A kind of round steel pipe binding type steel concrete column and steel beam joint structure | |
| CN201406683Y (en) | Combined reinforced filling pile | |
| CN204715537U (en) | A kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure | |
| CN203583777U (en) | Prestressed round-pile core-filled concrete column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160309 Termination date: 20171019 |