CN104264904A - Recycled concrete L-shaped steel tube special-shaped column - Google Patents
Recycled concrete L-shaped steel tube special-shaped column Download PDFInfo
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- CN104264904A CN104264904A CN201410458423.8A CN201410458423A CN104264904A CN 104264904 A CN104264904 A CN 104264904A CN 201410458423 A CN201410458423 A CN 201410458423A CN 104264904 A CN104264904 A CN 104264904A
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- concrete
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- hetermorphiscal column
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a recycled concrete L-shaped steel tube special-shaped column. The special-shaped column is formed by welding a round steel tube and two U-shaped steel tanks, common aggregate concrete is poured into the U-shaped steel tanks, and recycled aggregate concrete is poured into the round steel tube; and anti-shear bolts are welded in the U-shaped steel tanks. Through the adoption of the steel tube with large diameter on the corner of the L-shaped special-shaped column, the recycled concrete is restrained, the force-bearing performance is improved, the torsion capacity is improved, and the bearing capacity and the shock resistance of the recycled concrete restrained by the steel tube are improved, the doubt of people on the poor performance of the recycled concrete is lowered, the recycled concrete can be popularized and applied to the high-rise buildings and the construction waste can be recycled. The recycled concrete L-shaped steel tube special-shaped column disclosed by the invention can be applied to the high-rise buildings and regions with high seismic intensity, and the application range of the recycled concrete is enlarged. Furthermore, the externally coated steel plate and steel tube can be used as templates, so that the templates are saved, the construction is accelerated, and the economic benefit is improved.
Description
Technical field
The invention belongs to steel performance and combination construction technical field, relate to hetermorphiscal column, especially a kind of regeneration concrete L-type steel pipe hetermorphiscal column.
Background technology
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.Make full use of regeneration concrete, not only effectively can reduce the quantity of building waste, reduce building waste to the pollution of natural environment, play 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 construction work, reach the object of saving natural sandstone resource.Recycled concrete achieves the recycling to waste concrete, forms new building material product, has significant economy, society and environmental benefit.Therefore; from the angle of environmental protection and utilization of resources; regeneration concrete is considered to ecological ideas concrete; its technical research of Efforts To Develop and application study are useful and necessary; meeting the Mode of Circular of building trade and the low-carbon economic policy requirement of country's promotion, is also one of important measures of the great strategy of human kind sustainable development.
But, owing to adhering to the impact of old mortar in regeneration aggregate, compared with ordinary concrete, regeneration concrete is more prone to occur micro-crack under uniaxial tension effect, and then cause the uniaxial compressive strength of regeneration concrete to be generally less than ordinary concrete, have impact on it and apply.
Summary of the invention
The technical problem to be solved in the present invention is to provide the regeneration concrete T-steel pipe hetermorphiscal column that a kind of bearing capacity is higher, anti-seismic performance is good.
For solving the problems of the technologies described above, the present invention is by the following technical solutions: regeneration concrete L-type steel pipe hetermorphiscal column, comprise L-type hetermorphiscal column, L-type hetermorphiscal column is welded to form by round steel pipe and two U-shaped steel tanks, round steel pipe is as the corner of L-type hetermorphiscal column, and two U-shaped steel tanks are respectively as two limbs of L-type hetermorphiscal column; General aggregate concrete is built in U-shaped steel tank inside, and regenerated aggregate concrete is built in round steel pipe inside; Be welded with shearing bolt in U-shaped steel tank, the diameter of round steel pipe is greater than the width of U-shaped steel tank.
The diameter of round steel pipe is not less than 1.2 times of U-shaped steel tank width.
U-shaped steel tank is welded by encased steel plate.
The spacing of shearing bolt is not more than the width of U-shaped steel tank.
General aggregate strength grade of concrete is not less than C40, and strength of recycled aggregate concrete grade is not less than C30, 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.
The steel ratio of L-type steel pipe hetermorphiscal column is 0.04-0.2.
For regenerated aggregate concrete application Problems existing, inventor has devised a kind of regeneration concrete L-type steel pipe hetermorphiscal column, be welded to form by round steel pipe and two U-shaped steel tanks, general aggregate concrete is built in U-shaped steel tank inside, and regenerated aggregate concrete is built in round steel pipe inside; Shearing bolt is welded with in U-shaped steel tank.Owing to adopting large diameter steel tube confinement regeneration concrete in the corner of L-type hetermorphiscal column, improve the stress performance of L-type hetermorphiscal column, improve its anti-torsion ability, and the bearing capacity that improve by the regeneration concrete of steel tube confinement and shock resistance, decrease the suspection of people to regeneration concrete poor performance, be conducive to regeneration concrete applying and construction refuse resource in highrise building.Regeneration concrete L-type steel pipe hetermorphiscal column of the present invention can be applicable in highrise building, and the region that earthquake intensity is larger, expands the range of application of regeneration concrete.In addition, because encased steel plate and steel pipe can use as template, therefore save template, accelerate speed of application, improve economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of regeneration concrete L-type steel pipe hetermorphiscal column of the present invention.
Fig. 2 is the schematic diagram of regenerated aggregate concrete in Fig. 1.
Fig. 3 is the concrete schematic diagram of natural aggregate in Fig. 1.
In figure: 1U shape steel tank, 2 round steel pipes, 3 general aggregate concrete, 4 shearing bolts, 5 regenerated aggregate concretes, 6 new mortars, 7 original natural aggregates, 8 old mortars, 9 new mortars, 10 common natural aggregates.
Detailed description of the invention
As shown in Figures 1 to 3, regeneration concrete L-type steel pipe hetermorphiscal column of the present invention, comprises L-type hetermorphiscal column, and L-type hetermorphiscal column is welded to form by round steel pipe 2 and two U-shaped steel tanks 1, round steel pipe is as the corner of L-type hetermorphiscal column, and two U-shaped steel tanks are respectively as two limbs of L-type hetermorphiscal column; General aggregate concrete 3 is built in U-shaped steel tank inside, and regenerated aggregate concrete 5 is built in round steel pipe inside; Be welded with shearing bolt 4 in U-shaped steel tank, the diameter of round steel pipe is not less than 1.2 times of U-shaped steel tank width.
Manufacturing process
U-shaped steel tank is welded by encased steel plate, is first welded on steel plate by some row's shearing bolt connectors, and then by steel plate by soldering group synthesis U-shaped steel tank, two U-shaped steel tanks again with round steel pipe soldering group l-shaped hetermorphiscal column.Build regenerated aggregate concrete in round steel pipe inside, regenerated aggregate concrete is made up of new mortar 6 and regeneration aggregate, and regeneration aggregate is made up of original natural aggregate 7 and the old mortar 8 of attachment.Build general aggregate concrete in U-shaped steel tank inside, general aggregate concrete is made up of new mortar 9 and common natural aggregate 10.Wherein, general aggregate strength grade of concrete is not less than C40, and strength of recycled aggregate concrete grade is not less than C30, and the concrete strength grade of general aggregate is greater than regenerated aggregate concrete.According to " reinforced concrete composite structure design specifications " (JGJ138-2001) regulation: the steel ratio of hetermorphiscal column is within the scope of 0.04-0.2.
Design principle
Steel pipe hetermorphiscal column of the present invention both can meet requirement for bearing capacity, can improve again intensity and the shock resistance of restrained regeneration concrete.By arranging the larger steel pipe of diameter in the corner of L-type hetermorphiscal column, improve the Torsion bearing capacity of L-type hetermorphiscal column; Because steel duct builds regenerated aggregate concrete, in a compressed state, improve the intensity of regeneration concrete by the constraint of steel pipe, and then improve the bearing capacity of regeneration concrete, specifically: when axial force increases time, because concrete has certain poisson's ratio, lateral deformation can occur, under lateral deformation suffers restraints situation, the development of concrete microcrack can be restricted, deformation performance also can strengthen, thus improves bearing capacity; Because core concrete suffers restraints, when geological process, the micro-crack of inside concrete is also not easy expansion, thus improves shock resistance.Encased steel plate and natural aggregate concrete are by shearing bolt compact siro spinning technology, and the spacing of shearing bolt is not more than the width of U-shaped steel tank, is conducive to concrete and steel plate collaborative work.
Claims (7)
1. a regeneration concrete L-type steel pipe hetermorphiscal column, comprise L-type hetermorphiscal column, it is characterized in that: described L-type hetermorphiscal column is welded to form by round steel pipe and two U-shaped steel tanks, round steel pipe is as the corner of L-type hetermorphiscal column, and two U-shaped steel tanks are respectively as two limbs of L-type hetermorphiscal column; General aggregate concrete is built in described U-shaped steel tank inside, and regenerated aggregate concrete is built in round steel pipe inside; Be welded with shearing bolt in described U-shaped steel tank, the diameter of round steel pipe is greater than the width of U-shaped steel tank.
2. regeneration concrete L-type steel pipe hetermorphiscal column according to claim 1, is characterized in that: the diameter of described round steel pipe is not less than 1.2 times of U-shaped steel tank width.
3. regeneration concrete L-type steel pipe hetermorphiscal column according to claim 2, is characterized in that: described U-shaped steel tank is welded by encased steel plate.
4. regeneration concrete L-type steel pipe hetermorphiscal column according to claim 3, is characterized in that: the spacing of described shearing bolt is not more than the width of U-shaped steel tank.
5. regeneration concrete L-type steel pipe hetermorphiscal column according to claim 4, it is characterized in that: described general aggregate strength grade of concrete is not less than C40, strength of recycled aggregate concrete grade is not less than C30, and the concrete strength grade of general aggregate is greater than regenerated aggregate concrete.
6. regeneration concrete L-type steel pipe hetermorphiscal column 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.
7. regeneration concrete L-type steel pipe hetermorphiscal column according to claim 6, is characterized in that: the steel ratio of described L-type steel pipe hetermorphiscal column is 0.04-0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458423.8A CN104264904A (en) | 2014-09-09 | 2014-09-09 | Recycled concrete L-shaped steel tube special-shaped column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458423.8A CN104264904A (en) | 2014-09-09 | 2014-09-09 | Recycled concrete L-shaped steel tube special-shaped column |
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| CN104264904A true CN104264904A (en) | 2015-01-07 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328346A1 (en) * | 1992-08-28 | 1994-03-03 | Friedhelm Dipl Ing Weidt | Enclosed plastics profile with open cross-section - is used on lost shuttering, or casting mould for hardenable substances. |
| CN200989034Y (en) * | 2006-12-08 | 2007-12-12 | 北京工业大学 | Profile steel pipe concrete deformed column |
| JP2008045370A (en) * | 2006-08-21 | 2008-02-28 | Ihi Corp | Method and device for anchoring steel bridge pier and pile |
| CN201474166U (en) * | 2009-07-28 | 2010-05-19 | 端华飞 | Concrete column for thin-walled steel section composite steel tube |
| CN101798857A (en) * | 2010-04-21 | 2010-08-11 | 中南大学 | Special shape column |
| CN103541504A (en) * | 2013-09-23 | 2014-01-29 | 沈阳建筑大学 | Special-shaped section steel tube recycled concrete core column |
| CN204163282U (en) * | 2014-09-09 | 2015-02-18 | 广西大学 | Regeneration concrete L-type steel pipe hetermorphiscal column |
-
2014
- 2014-09-09 CN CN201410458423.8A patent/CN104264904A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328346A1 (en) * | 1992-08-28 | 1994-03-03 | Friedhelm Dipl Ing Weidt | Enclosed plastics profile with open cross-section - is used on lost shuttering, or casting mould for hardenable substances. |
| JP2008045370A (en) * | 2006-08-21 | 2008-02-28 | Ihi Corp | Method and device for anchoring steel bridge pier and pile |
| CN200989034Y (en) * | 2006-12-08 | 2007-12-12 | 北京工业大学 | Profile steel pipe concrete deformed column |
| CN201474166U (en) * | 2009-07-28 | 2010-05-19 | 端华飞 | Concrete column for thin-walled steel section composite steel tube |
| CN101798857A (en) * | 2010-04-21 | 2010-08-11 | 中南大学 | Special shape column |
| CN103541504A (en) * | 2013-09-23 | 2014-01-29 | 沈阳建筑大学 | Special-shaped section steel tube recycled concrete core column |
| CN204163282U (en) * | 2014-09-09 | 2015-02-18 | 广西大学 | Regeneration concrete L-type steel pipe hetermorphiscal column |
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Application publication date: 20150107 |