CN204139051U - Regeneration concrete ten shape steel tube hetermorphiscal column bridge pier - Google Patents
Regeneration concrete ten shape steel tube hetermorphiscal column bridge pier Download PDFInfo
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- CN204139051U CN204139051U CN201420605942.8U CN201420605942U CN204139051U CN 204139051 U CN204139051 U CN 204139051U CN 201420605942 U CN201420605942 U CN 201420605942U CN 204139051 U CN204139051 U CN 204139051U
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Abstract
The utility model discloses a kind of regeneration concrete ten shape steel tube hetermorphiscal column bridge pier, be welded to form by round steel pipe and four U-shaped steel tanks, round steel pipe is as the center of cross section pier shaft, and four U-shaped steel tanks are symmetrically distributed in the four limbs of round steel pipe surrounding as cross section pier shaft; Build regenerated aggregate concrete in round steel pipe, in U-shaped steel tank, build general aggregate concrete.The utility model overcomes the relatively poor defect of regeneration concrete durability, improves its stress performance, decreases the suspection of people to regeneration concrete performance.And the utilization of regeneration concrete is also a kind of process of garbage as resource, gathers materials on the spot, and decreases the cost of transportation of material.Meanwhile, use because encased steel plate and round steel pipe can be used as template, form work engineering need not be carried out in work progress.The utility model possesses above outstanding advantages, is applicable to earthquake intensity larger area, constructional materials is difficult to transit domain, is also applicable to engineering time, construction impacts, slalom course has requirement Urban Bridge engineering.
Description
Technical field
The utility model belongs to steel performance and combination construction technical field, relates to bridge pier column, especially a kind of regeneration concrete ten shape steel tube hetermorphiscal column bridge pier.
Background technology
As time goes on, the quantity of old bridge rises gradually, and wherein many bridges because be difficult to are repaired, are difficult to meet the reason needs such as traffic capacity requirement and remove reconstruction on the spot.Traditional construction method is that the waste material produced by old bridge removal transports, and empties place, then the equipment built needed for new bridge and material is transported to the construction of on-the-spot expansion new bridge.So very big to the movement requirement of building debris and new construction material, cause cost increase, construction period extends, and increases surrounding enviroment impact.Meanwhile, engineering also needs the process problem in the face of building debris, and the exploitation of new material also can damage environment.Therefore, if effectively by building debris garbage as resource, as the constructional materials of new construction, above-mentioned harmful effect can be alleviated to a great extent.
Waste concrete block claims regeneration aggregate through aggregate that is broken, that clean and formed after classification; Regeneration aggregate partly or entirely replaces the formulated concrete of the natural aggregates such as sandstone to be called regenerated aggregate concrete, is called for short regeneration concrete.Applying of regeneration concrete is conducive to construction refuse resource, meets environmental protection and sustainable development requirement.The key character of sustainable development is environmental protection and the protection to natural resource, makes full use of regeneration concrete, not only effectively can reduce the quantity of building waste, reduces building waste to the pollution of natural environment, plays the effect of protection of the environment; And the regenerated aggregate concrete utilizing regeneration aggregate to configure can also reduce the exploitation to natural aggregate in bridge engineering, reach the object of saving natural sandstone resource.But, inherence due to regeneration aggregate has been damaged with its adsorption the old mortar of one deck and has caused water absorption rate large, comparatively ordinary concrete is poor for the recycled concrete strength causing it to be made into, shrinkage and endurance quality etc., and this uncertainty significantly limit its scope of application.
Utility model content
It is higher that the technical problems to be solved in the utility model is to provide a kind of bearing capacity, antitorque, anti-seismic performance good, regeneration concrete ten shape steel tube hetermorphiscal column bridge pier fast of constructing.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: regeneration concrete ten shape steel tube hetermorphiscal column bridge pier, comprise cross section pier shaft, cross section pier shaft is welded to form by round steel pipe and four U-shaped steel tanks, round steel pipe is as the center of cross section pier shaft, and four U-shaped steel tanks are symmetrically distributed in the four limbs of round steel pipe surrounding as cross section pier shaft; Build regenerated aggregate concrete in round steel pipe, in U-shaped steel tank, build general aggregate concrete.
U-shaped steel tank is welded by encased steel plate, and end adopts semicircle design, and straight length portion and round steel pipe are weldingly connected.
The ratio of round steel pipe diameter D and U-shaped steel tank end semicircle radius d should be got near 0.3.
Should between 0.72 ~ 1.35 at the ratio of the U-shaped steel tank straight length portion length M of bridge longitudinal direction and the U-shaped steel tank straight length portion length N in bridge lateral direction.
General aggregate strength grade of concrete is not less than C50, and strength of recycled aggregate concrete grade is not less than C35, and the concrete strength grade of general aggregate is greater than regenerated aggregate concrete.
Regenerated aggregate concrete is made up of new mortar and regeneration aggregate, and regeneration aggregate is made up of original natural aggregate and the old mortar of attachment; General aggregate concrete is made up of new mortar and common natural aggregate.
For regenerated aggregate concrete application Problems existing, inventor has devised a kind of regeneration concrete ten shape steel tube hetermorphiscal column bridge pier, be welded to form by round steel pipe and four U-shaped steel tanks, round steel pipe is as the center of cross section pier shaft, and four U-shaped steel tanks are symmetrically distributed in the four limbs of round steel pipe surrounding as cross section pier shaft; Build regenerated aggregate concrete in round steel pipe, in U-shaped steel tank, build general aggregate concrete.Regeneration concrete is retrained owing to adopting large diameter round steel pipe at the center of cross section pier shaft, steel pipe has parcel and effect of contraction to regeneration concrete, regeneration concrete and atmospheric environment are completely cut off, and be in three axle pressured states, overcome the defect that regeneration concrete durability is relatively poor, improve its stress performance, decrease the suspection of people to regeneration concrete performance.And the utilization of regeneration concrete is also a kind of process of garbage as resource, gathers materials on the spot, and decreases the cost of transportation of material.Meanwhile, use because encased steel plate and round steel pipe can be used as template, thus form work engineering need not be carried out in work progress.The utility model possesses above outstanding advantages, is applicable to earthquake intensity larger area, constructional materials is difficult to transit domain, is also applicable to engineering time, construction impacts, slalom course has requirement Urban Bridge engineering.In addition, the profile of the utility model uniqueness also can provide many a kind of selections for promoting civic landscape level.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model regeneration concrete ten shape steel tube hetermorphiscal column bridge pier.
In figure: 1 round steel pipe, 2 regenerated aggregate concretes, 3U shape steel tank, 4 general aggregate concrete.
Detailed description of the invention
As shown in Figure 1, regeneration concrete ten shape steel tube hetermorphiscal column bridge pier of the present utility model comprises cross section pier shaft, cross section pier shaft is welded to form by round steel pipe 1 and four U-shaped steel tanks 3, round steel pipe is as the center of cross section pier shaft, and four U-shaped steel tanks are symmetrically distributed in the four limbs of round steel pipe surrounding as cross section pier shaft; Build regenerated aggregate concrete 2 in round steel pipe, in U-shaped steel tank, build general aggregate concrete 4.
Manufacturing process
U-shaped steel tank is welded by encased steel plate, comprises two pieces of straight steel plates (straight length portion) and one piece of semicircular arc steel plate (semi-circular ends); Four U-shaped steel tanks are welded to form cross again with round steel pipe.Build regenerated aggregate concrete in round steel pipe inside, regenerated aggregate concrete is made up of new mortar and regeneration aggregate, and regeneration aggregate is made up of original natural aggregate and the old mortar of attachment; Build general aggregate concrete in U-shaped steel tank inside, general aggregate concrete is made up of new mortar and common natural aggregate.Wherein, general aggregate strength grade of concrete is not less than C50, and strength of recycled aggregate concrete grade is not less than C35, and the concrete strength grade of general aggregate is greater than regenerated aggregate concrete.
Wherein, round steel pipe and regeneration concrete partial design size are controlled by axial compression and state of being turned round; The moment of flexure that the design size of U-shaped steel tank is brought primarily of eccentric compression controls, and this partial design needs to take into account designing determined central steel pipe concrete part by axle power.The ratio of round steel pipe diameter D and U-shaped steel tank end semicircle radius d should be got near 0.3.Should between 0.72 ~ 1.35 at the ratio of the U-shaped steel tank straight length portion length M of bridge longitudinal direction and the U-shaped steel tank straight length portion length N in bridge lateral direction, should according to superstructure transmit the power specific design of getting off and determine, the difference according to eccentric direction and size adjusts flexibly.
Design principle
Regeneration concrete ten shape steel tube hetermorphiscal column bridge pier of the present utility model both can meet requirement for bearing capacity, had again good anti-seismic performance, and can significantly improve regeneration concrete durability, realize garbage as resource, and in addition, this Bridge Pier Construction is convenient, cheap.
It is because the concrete in steel pipe is in the state of three axle pressurizeds that supporting capacity improves, when the axle power of vertical direction increases, lateral deformation can be there is and extend out in concrete, and steel pipe has good tensile characteristics, well organized the distortion of concrete transverse direction to extend out, make concrete all be in pressured state in all directions, the development of microcrack will be restricted, this restriction is effectively same under geological process, thus promotes anti-seismic performance.Under three axle pressured states, the mechanical property of regeneration concrete also can reach the level with ordinary concrete.
Easy construction, cheap be because the steel pipe of outsourcing and U-shaped steel tank can directly use as template in work progress, eliminate the time and cost of carrying out form work engineering specially.Meanwhile, the input greatly reducing purchase and transporting material is utilized to the garbage as resource of building debris, realizes real drawing materials locally.
Claims (6)
1. a regeneration concrete ten shape steel tube hetermorphiscal column bridge pier, comprise cross section pier shaft, it is characterized in that: described cross section pier shaft is welded to form by round steel pipe and four U-shaped steel tanks, round steel pipe is as the center of cross section pier shaft, and four U-shaped steel tanks are symmetrically distributed in the four limbs of round steel pipe surrounding as cross section pier shaft; Build regenerated aggregate concrete in described round steel pipe, in described U-shaped steel tank, build general aggregate concrete.
2. regeneration concrete ten shape steel tube hetermorphiscal column bridge pier according to claim 1, is characterized in that: described U-shaped steel tank is welded by encased steel plate, and end adopts semicircle design, and straight length portion and round steel pipe are weldingly connected.
3. regeneration concrete ten shape steel tube hetermorphiscal column bridge pier according to claim 2, is characterized in that: the ratio of described round steel pipe diameter D and U-shaped steel tank end semicircle radius d is 0.3.
4. regeneration concrete ten shape steel tube hetermorphiscal column bridge pier according to claim 3, is characterized in that: at the ratio of the U-shaped steel tank straight length portion length M of bridge longitudinal direction and the U-shaped steel tank straight length portion length N in bridge lateral direction between 0.72 ~ 1.35.
5. regeneration concrete ten shape steel tube hetermorphiscal column bridge pier according to claim 4, it is characterized in that: described general aggregate strength grade of concrete is not less than C50, strength of recycled aggregate concrete grade is not less than C35, and the concrete strength grade of general aggregate is greater than regenerated aggregate concrete.
6. regeneration concrete ten shape steel tube hetermorphiscal column bridge pier according to claim 5, is characterized in that: described regenerated aggregate concrete is made up of new mortar and regeneration aggregate, and regeneration aggregate is made up of original natural aggregate and the old mortar of attachment; Described general aggregate concrete is made up of new mortar and common natural aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605942.8U CN204139051U (en) | 2014-10-20 | 2014-10-20 | Regeneration concrete ten shape steel tube hetermorphiscal column bridge pier |
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| CN201420605942.8U CN204139051U (en) | 2014-10-20 | 2014-10-20 | Regeneration concrete ten shape steel tube hetermorphiscal column bridge pier |
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| CN204139051U true CN204139051U (en) | 2015-02-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278622A (en) * | 2014-10-20 | 2015-01-14 | 广西交通科学研究院 | Recycled-concrete cross steel-pipe special-shaped column pier |
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2014
- 2014-10-20 CN CN201420605942.8U patent/CN204139051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278622A (en) * | 2014-10-20 | 2015-01-14 | 广西交通科学研究院 | Recycled-concrete cross steel-pipe special-shaped column pier |
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