CN103938731B - Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars - Google Patents
Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars Download PDFInfo
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- CN103938731B CN103938731B CN201410146966.6A CN201410146966A CN103938731B CN 103938731 B CN103938731 B CN 103938731B CN 201410146966 A CN201410146966 A CN 201410146966A CN 103938731 B CN103938731 B CN 103938731B
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Abstract
The invention discloses a combination joint of a prefabricated concrete beam and a round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars, and belongs to the technical field of building structures. The round concrete filled steel tubular column and the reinforced concrete beam are both prefabricated; a hole channel is reserved in the cross section, corresponding to the round concrete filled steel tubular column, of the prefabricated concrete beam, and a metal corrugated pipe is pre-buried in the hole channel; annular plates are welded to the position, connected with the reinforced concrete beam, of the round concrete filled steel tubular column; channel steel is welded onto a round steel pipe; the common steel bars, the pre-stressed steel bars and tension pre-stressed steel bars penetrate through the metal corrugated pipe backwards; after tension is completed, hole channel grouting is completed within forty eight hours, and therefore the beam and the column form a whole. The combination joint is high in construction speed, the anti-shear bearing capacity of the joint can be effectively increased, the connecting performance of the joint is enhanced and the application prospects are wide.
Description
Technical field
The present invention relates to prestressing force and be connected precast concrete beam concrete-filled circular steel tube column combination joint with regular reinforcement
Point, belongs to building structure technology field.
Background technology
Architectural engineering is applied the concrete filled steel tube history of existing more than 100 year.Concrete filled steel tube holds owing to having
The advantages such as load power is high, plasticity and good toughness, good economical benefit and easy construction and paid attention to by engineering circles.Steel
Pipe concrete adapts to modern project structure to greatly across, development towering, heavily loaded and the needs that bear mal-condition,
Meet the industrial requirement of Modern Construction Technology, thus be just increasingly widely used in monolayer and multilamellar work
Industry factory building columns, equipment frame post, pier, stake, space structure, commercial square, multistory office and live
In residence, high level and high-rise building and bridge structure, achieved with good economic effect and architectural effect.
The most in recent years, rapid, to concrete filled steel tube undergoing an unusual development of China's concrete filled steel tube
Research also get more and more.
Steel core concrete column and beam connect key issue when node is by concrete filled steel tube engineering design it
One, its effectiveness connecting node directly affects integrally-built rigidity, stability and bearing capacity, also shadow
Ring to site operation difficulty and construction speed.Existing Concrete-filled tubular connections form is various, and structure is multiple mostly
Miscellaneous, difficulty of construction is big, and power transmission is indefinite, and node computation model is indefinite, so far China also do not have a set of relatively
Complete node computational theory and method for designing.Therefore, research and development one is novel has in-site installation simple and fast,
Less demanding to operator's technology and construction environment, the reliable steel core concrete column of attachment security and girder connection
Form, it appears the most necessary.
This construction method of bonded prestress, passing hole channel is in the milk, makes presstressed reinforcing steel the most viscous with concrete
Knot, alleviates anchorage transmission prestressing force effect, improves anchorage reliability and durability, be widely used in main
Supporting member or structure.
Summary of the invention
It is an object of the invention to ensure node connect effectively, on the premise of power transmission clearly, pre-by improving
Stress is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, uses presstressed reinforcing steel to enter
Luggage is joined, and reduces difficulty of construction, accelerates construction speed.Speed of application of the present invention is fast, it is possible to effectively increase
Add the shear-carrying capacity of node, strengthen its switching performance, have a extensive future.
The technical solution used in the present invention is that prestressing force is connected concrete with regular reinforcement for achieving the above object
Soil beam concrete-filled circular steel tube column combined joint, as shown in Figure 1, 2, this node include concrete-filled circular steel tube column,
Reinforced beam, presstressed reinforcing steel, regular reinforcement, ring flat-plate, channel-section steel；Concrete-filled circular steel tube column (1) and steel
Concrete Beam Reinforced (2) is prefabricated, and the two is connected by presstressed reinforcing steel (3) and regular reinforcement (4)；?
Concrete-filled circular steel tube column (1) is upper welds ring flat-plate (5), ring flat-plate (5) with reinforced beam (2) junction
On have correspondence hole；Channel-section steel (6) is welded in round steel pipe；Reinforced beam, concrete-filled circular steel tube column pair
Apertured road is stayed in the position answering beam section, and at built-in metal corrugated tube (7) in the duct of beam upper and lower surface,
Regular reinforcement (4), presstressed reinforcing steel (3) is worn after in metal bellows (7), tensioned prestressing bar (3),
Stretch-draw complete after 48h duct, inherence fill mortar (8), thus by beam column composition entirety.
Described ring flat-plate (5) is general steel plate, and width is beam section height, and thickness is thickness of steel pipe.
Described channel-section steel (6) web height is beam section width, and flange width is beam section height, channel-section steel length
For beam section height, the web of channel-section steel is slit into the radian identical with round steel pipe, in order to complete with round steel pipe during welding
Full connected.
After wear regular reinforcement (4), be mainly used to increase node energy dissipation capacity and auxiliary improve node bending resistance
Ability, after wear regular reinforcement reserving hole channel use corrugated tube, with increase after wear nonprestressed reinforcement bonding,
Anchoring property.
The design principle of the prestressing force size of presstressed reinforcing steel (3) is: should ensure the friction shear resisting energy of junction
Power, within making the stress in presstressed reinforcing steel remain at yield limit again.
At the ring flat-plate (5) of the end of side column, can be as bearing plate during deformed bar stretch-draw, the most also
Can after wear regular reinforcement (4) and be welded on this ring flat-plate, wear the anchoring requirement of reinforcing bar after meeting.
Compared with prior art, the present invention has the advantages that.
Use this node site operation speed fast, and can ensure that the reliability that node connects.This joint
Point uses steel plate, can alleviate the weakening effect to bearing capacity when round steel pipe punches；Channel-section steel is used to increase
The shear-carrying capacity of big bean column node；Using deformed bar, passing hole channel is in the milk, and makes presstressed reinforcing steel with mixed
The solidifying soil phase bonds mutually, alleviates anchorage transmission prestressing force effect, improves the performance of reinforced beam, this
Economy and social development to China bring huge economic benefit, have a extensive future.
Accompanying drawing explanation
Fig. 1 is interior joint front elevation view
Fig. 2 is mid-side node elevation
Fig. 3 is the Fig. 1 sectional view along A-A
Fig. 4 is the Fig. 2 sectional view along B-B
Fig. 5 is the Fig. 2 sectional view along C-C
Fig. 6 is the Fig. 1 sectional view along D-D
In figure, 1, concrete-filled circular steel tube column, 2, precast reinforced concrete beam, 3, presstressed reinforcing steel, 4, general
Logical reinforcing bar, 5, ring flat-plate, 6, channel-section steel, 7, metal bellows, 8, grouting.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in figures 1 to 6.
Embodiment 1
Prestressing force is connected precast concrete beam concrete-filled circular steel tube column combined joint and constructs such as Fig. 1 with regular reinforcement
Shown in:
1, concrete filled steel tube and the making of reinforced beam
In factory in strict accordance with related specifications and drawing making concrete-filled circular steel tube column (1) and reinforced beam
(2), time prefabricated, all reserve 6 corresponding ducts, duct internal diameter than the big 15mm of presstressed reinforcing steel (3) diameter,
Built-in metal corrugated tube (7) in the duct of lower section on beam, in the upper connection of concrete-filled circular steel tube column (1)
Liang Chu uses weld all around mode to weld ring flat-plate (5) and channel-section steel (6).
2, the assembling of bean column node
Behind concrete-filled circular steel tube column (1) location, make reinforced beam (2) lifting location by support.
3, presstressed reinforcing steel and regular reinforcement lashing
Wearing regular reinforcement (4) in corrugated tube (7), lashing terminates post-grouting.Duct (8) wear pre-
Stress rib (3).
4, tensioned prestressing bar
Slurry intensity reaches tensioned prestressing bar (3) during design strength, and stretch-draw uses symmetrical stretching mode,
The position of pulling force overlaps with duct centrage.Cable tensios control uses stress and stretch value dual control, stressing sequence
It is 0 → 10% σcon→100%σcon→103%σcon→ anchoring.
5, cutting
After stretch-draw terminates, use portable grinder cutting machine will expose presstressed reinforcing steel excision, its protruded length
It is not preferably less than 1.5 times of presstressed reinforcing steel diameter, and not less than 30mm.
Embodiment 2
Seeing Fig. 2 when for side column node, other measure is with embodiment 1, simply in the end of side column, and ring flat-plate (5)
Can as bearing plate during deformed bar (3) stretch-draw, simultaneously can also after wear regular reinforcement (4)
It is welded on this ring flat-plate, after meeting, wears the anchoring requirement of reinforcing bar.
Claims (6)
1. prestressing force is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, it is characterised in that: this node includes concrete-filled circular steel tube column (1), reinforced beam (2), presstressed reinforcing steel (3), regular reinforcement (4), ring flat-plate (5), channel-section steel (6)；Concrete-filled circular steel tube column (1) is prefabricated with reinforced beam (2), and the two is connected by presstressed reinforcing steel (3) and regular reinforcement (4)；Above weld ring flat-plate (5) with reinforced beam (2) junction at concrete-filled circular steel tube column (1), ring flat-plate (5) has the hole of correspondence；Channel-section steel (6) is welded in round steel pipe；Apertured road is stayed in reinforced beam, the position of concrete-filled circular steel tube column correspondence beam section, and at built-in metal corrugated tube (7) in the duct of beam upper and lower surface, regular reinforcement (4), presstressed reinforcing steel (3) is worn after in metal bellows (7), tensioned prestressing bar (3), stretch-draw complete after 48h duct, inherence fill mortar (8), thus by beam column composition entirety.
A kind of prestressing force the most according to claim 1 is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, it is characterised in that: described ring flat-plate (5) is general steel plate, and width is beam section height, and thickness is thickness of steel pipe.
A kind of prestressing force the most according to claim 1 is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, it is characterized in that: described channel-section steel (6) web height is beam section width, flange width is beam section height, the a length of beam section height of channel-section steel, the web of channel-section steel is slit into the radian identical with round steel pipe, in order to completely attach to round steel pipe during welding.
A kind of prestressing force the most according to claim 1 is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, it is characterized in that: after wear regular reinforcement (4), it is mainly used to increase the energy dissipation capacity of node and the bending resistance of auxiliary raising node, after wear regular reinforcement reserving hole channel use corrugated tube, with increase after wear the bonding of nonprestressed reinforcement, anchoring property.
A kind of prestressing force the most according to claim 1 is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, it is characterized in that: presstressed reinforcing steel (3) can provide the clamping force of beam column interface, the node vertical shear produced due to vertical load and horizontal earthquake action on beam is resisted by this clamping force, this clamping force also makes structure have good automatic recovery ability simultaneously, makes the residual deformation of structure reduce.
A kind of prestressing force the most according to claim 1 is connected precast concrete beam concrete-filled circular steel tube column combined joint with regular reinforcement, it is characterized in that: at the ring flat-plate (5) of the end of side column, as bearing plate during deformed bar stretch-draw, simultaneously the most also after wear regular reinforcement (4) and be welded on this ring flat-plate, wear the anchoring requirement of reinforcing bar after meeting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146966.6A CN103938731B (en) | 2014-04-14 | 2014-04-14 | Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146966.6A CN103938731B (en) | 2014-04-14 | 2014-04-14 | Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103938731A CN103938731A (en) | 2014-07-23 |
| CN103938731B true CN103938731B (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410146966.6A Active CN103938731B (en) | 2014-04-14 | 2014-04-14 | Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars |
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| CN (1) | CN103938731B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104598723A (en) * | 2014-12-30 | 2015-05-06 | 黄振宇 | Method for predicting shear-bearing capacity of steel-concrete-steel combined deep beam |
| CN105937280A (en) * | 2016-06-03 | 2016-09-14 | 长沙远大住宅工业集团股份有限公司 | Novel prefabricated building connecting joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08113984A (en) * | 1994-10-14 | 1996-05-07 | Kajima Corp | Joint structure of steel pipe reinforced concrete column and prestressed beam |
| CN2436578Y (en) * | 2000-06-16 | 2001-06-27 | 王关根 | Universal joint device for steel structure building |
| CN2797476Y (en) * | 2005-04-22 | 2006-07-19 | 北京工业大学 | Mixed jointing node of assembled concrete frame structure beam column |
| CN101029503A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Beam and pile assembled node of precast and prestressed concrete structure |
| CN201024538Y (en) * | 2007-04-06 | 2008-02-20 | 北京工业大学 | Prefabricated prestressed concrete structural beam, column mixed connection node |
| CN101798849A (en) * | 2010-03-26 | 2010-08-11 | 东南大学 | Node connection device for self-centering prestressed concrete frame |
-
2014
- 2014-04-14 CN CN201410146966.6A patent/CN103938731B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08113984A (en) * | 1994-10-14 | 1996-05-07 | Kajima Corp | Joint structure of steel pipe reinforced concrete column and prestressed beam |
| CN2436578Y (en) * | 2000-06-16 | 2001-06-27 | 王关根 | Universal joint device for steel structure building |
| CN2797476Y (en) * | 2005-04-22 | 2006-07-19 | 北京工业大学 | Mixed jointing node of assembled concrete frame structure beam column |
| CN101029503A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Beam and pile assembled node of precast and prestressed concrete structure |
| CN201024538Y (en) * | 2007-04-06 | 2008-02-20 | 北京工业大学 | Prefabricated prestressed concrete structural beam, column mixed connection node |
| CN101798849A (en) * | 2010-03-26 | 2010-08-11 | 东南大学 | Node connection device for self-centering prestressed concrete frame |
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| CN103938731A (en) | 2014-07-23 |
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Effective date of registration: 20210115 Address after: Room 1424, Floor 4, Peony Pioneer Building, No. 2 Garden Road, Haidian District, Beijing, 100191 Patentee after: Beijing Zhonglian Technology Service Co.,Ltd. Address before: 100124 No. 100 Chaoyang District Ping Tian Park, Beijing Patentee before: Beijing University of Technology |
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Effective date of registration: 20220119 Address after: 351100 101 / F, office building, 85 Kangfu West Road, hezhai community, Lingchuan Town, Chengxiang District, Putian City, Fujian Province Patentee after: Fujian fanche Construction Development Co.,Ltd. Address before: Room 1424, Floor 4, Peony Pioneer Building, No. 2 Garden Road, Haidian District, Beijing, 100191 Patentee before: Beijing Zhonglian Technology Service Co.,Ltd. |
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