CN103938731A - 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
- Publication number
- CN103938731A CN103938731A CN201410146966.6A CN201410146966A CN103938731A CN 103938731 A CN103938731 A CN 103938731A CN 201410146966 A CN201410146966 A CN 201410146966A CN 103938731 A CN103938731 A CN 103938731A
- Authority
- CN
- China
- Prior art keywords
- concrete
- steel
- plain bars
- steel tube
- tube column
- 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.)
- Granted
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
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 combined joint with plain bars, belong to building structure technology field.
Background technology
In construction work, apply the concrete filled steel tube history of existing more than 100 year.The attention that bearing capacity is high owing to having for concrete filled steel tube, plasticity and the advantage such as good toughness, good economical benefit and easy construction are subject to engineering circles.Concrete filled steel tube can adapt to modern project structure to greatly across, towering, heavy duty development with bear the needs of mal-condition, meet the industrial requirement of Modern Construction Technology, thereby be just more and more widely used in individual layer and multi storied industrial factory building post, equipment frame post, pier, stake, space structures, commercial square, multistory office and house, high level and super highrise building and bridge construction, obtain good economic effect and architectural effect.Especially in recent years, undergoing an unusual development rapidly of China's encased structures, also more and more to the research of encased structures.
The connected node of steel core concrete column and beam is one of key issue while carrying out concrete filled steel tube engineering design, and the validity of its connected node directly affects integrally-built rigidity, stability and supporting capacity, also has influence on site operation difficulty and construction speed.Existing concrete filled steel tube joint form is various, complex structure mostly, and difficulty of construction is large, and power transmission is indefinite, and node computation model is indefinite, and China does not also have a set of more complete node theory of computation and method for designing so far.Therefore, a kind of novel on-the-spot simple and fast of installing that has of research and development, less demanding to operating personnel's technology and construction environment, connect safe and reliable steel core concrete column and girder connection form, seem very necessary.
This construction method of bonded prestress, by duct grouting, bonds presstressed reinforcing steel and concrete mutually, has alleviated ground tackle and has transmitted prestressing force effect, has improved anchorage reliability and durability, is widely used in main supporting member or structure.
Summary of the invention
The object of the invention is to ensureing under the prerequisite that node connects effectively, power transmission is clear and definite, be connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars by improving prestressing force, adopt presstressed reinforcing steel to assemble, reduced difficulty of construction, accelerated construction speed.Speed of application of the present invention is fast, can effectively increase the shear-carrying capacity of node, strengthens its switching performance, has a extensive future.
The technical solution used in the present invention is that prestressing force is connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars for achieving the above object, as shown in Figure 1, 2, this node comprises concrete-filled circular steel tube column, reinforced concrete beam, presstressed reinforcing steel, plain bars, ring flat-plate, channel-section steel; Concrete-filled circular steel tube column (1) and reinforced concrete beam (2) are prefabricated, and the two connects by presstressed reinforcing steel (3) and plain bars (4); Upper and reinforced concrete beam (2) the junction welding ring flat-plate (5) at concrete-filled circular steel tube column (1), ring flat-plate has corresponding hole on (5); Channel-section steel (6) is welded in round steel pipe; The position of reinforced concrete beam, the corresponding beam section of concrete-filled circular steel tube column is stayed and is established duct, and near built-in metal bellows (7) in the duct of beam upper and lower surface, after in metal bellows (7), wear plain bars (4), presstressed reinforcing steel (3), tensioned prestressing bar (3), after completing, stretch-draw fills with mortar (8) within 48h in duct, thereby 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, and channel-section steel length is beam section height, and the web of channel-section steel is slit into the radian identical with round steel pipe, so that welding when contacts completely with round steel pipe.
After wear plain bars (4), be mainly used to the bending resistance of the energy dissipation capacity and the assisted Extraction high node that increase node, after wear plain bars reserving hole channel adopt bellows, to wear bonding, the anchoring property of nonprestressed reinforcement after increasing.
The design principles of the prestressing force size of presstressed reinforcing steel (3) is: should ensure the friction shear resisting ability of junction, make again the stress in presstressed reinforcing steel remain in yield limit.
At the ring flat-plate (5) of the end of side column, the bearing plate while can be used as prestressed reinforcement stretch-draw, simultaneously also can after wear plain bars (4) and be welded on this ring flat-plate, after meeting, wear the anchoring requirement of reinforcing bar.
Compared with prior art, the present invention has following beneficial effect.
Adopt this node site operation speed fast, and can ensure the reliability that node connects.This node adopts steel plate, the weakening effect to bearing capacity can alleviate round steel pipe and punch time; Adopt channel-section steel can increase the shear-carrying capacity of bean column node; Adopt prestressed reinforcement, by duct grouting, presstressed reinforcing steel and concrete are bondd mutually, alleviate ground tackle and transmitted prestressing force effect, improved the performance of reinforced concrete beam, this brings huge economic benefit to economy and the social development of China, has a extensive future.
Brief description of the drawings
Fig. 1 is middle node front elevation view
Fig. 2 is mid-side node elevation
Fig. 3 is the sectional view of Fig. 1 along A-A
Fig. 4 is the sectional view of Fig. 2 along B-B
Fig. 5 is the sectional view of Fig. 2 along C-C
Fig. 6 is the sectional view of Fig. 1 along D-D
In figure, 1, concrete-filled circular steel tube column, 2, precast reinforced concrete beam, 3, presstressed reinforcing steel, 4, plain bars, 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 Fig. 1-6.
Embodiment 1
Prestressing force is connected precast concrete beam concrete-filled circular steel tube column combined joint and constructs as shown in Figure 1 with plain bars:
1, the making of concrete filled steel tube and reinforced concrete beam
In factory in strict accordance with related specifications and drawing making concrete-filled circular steel tube column (1) and reinforced concrete beam (2), when prefabricated, all reserve 6 corresponding ducts, duct internal diameter is than the large 15mm of presstressed reinforcing steel (3) diameter, near built-in metal bellows (7) in the duct of lower section on beam, at the upper tie-beam of concrete-filled circular steel tube column (1), place adopts 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 concrete beam (2) lifting location by support.
3, presstressed reinforcing steel and plain bars lashing
In bellows (7), wear plain bars (4), lashing finishes post-grouting.In duct (8), wear presstressed reinforcing steel (3).
4, tensioned prestressing bar
Tensioned prestressing bar when slurry intensity reaches design strength (3), stretch-draw adopts symmetrical stretching mode, and stretch-draw line of action of force overlaps with duct center line.Stretch-draw control adopts stress and stretch value dual control, and stressing sequence is 0 → 10% σ
con→ 100% σ
con→ 103% σ
con→ anchoring.
5, cutting
After stretch-draw finishes, adopt portable grinder cutting machine will expose presstressed reinforcing steel excision, its protruded length should not be less than 1.5 times of presstressed reinforcing steel diameter, and is not less than 30mm.
Embodiment 2
When for side column node, see Fig. 2, other measure, with embodiment 1, is in the end of side column, bearing plate when ring flat-plate (5) can be used as prestressed reinforcement (3) stretch-draw, simultaneously also can after wear plain bars (4) and be welded on this ring flat-plate, after meeting, wear 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 plain bars, it is characterized in that: this node comprises concrete-filled circular steel tube column (1), reinforced concrete beam (2), presstressed reinforcing steel (3), plain bars (4), ring flat-plate (5), channel-section steel (6); Concrete-filled circular steel tube column (1) and reinforced concrete beam (2) are prefabricated, and the two connects by presstressed reinforcing steel (3) and plain bars (4); Upper and reinforced concrete beam (2) the junction welding ring flat-plate (5) at concrete-filled circular steel tube column (1), ring flat-plate has corresponding hole on (5); Channel-section steel (6) is welded in round steel pipe; The position of reinforced concrete beam, the corresponding beam section of concrete-filled circular steel tube column is stayed and is established duct, and near built-in metal bellows (7) in the duct of beam upper and lower surface, after in metal bellows (7), wear plain bars (4), presstressed reinforcing steel (3), tensioned prestressing bar (3), after completing, stretch-draw fills with mortar (8) within 48h in duct, thereby by beam column composition entirety.
2. be connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars according to claim 1 prestressing force, it is characterized in that: described ring flat-plate (5) is general steel plate, and width is beam section height, and thickness is thickness of steel pipe.
3. be connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars according to claim 1 prestressing force, it is characterized in that: described channel-section steel (6) web height is beam section width, flange width is beam section height, channel-section steel length is beam section height, the web of channel-section steel is slit into the radian identical with round steel pipe, so that welding when contacts completely with round steel pipe.
4. be connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars according to claim 1 prestressing force, it is characterized in that: after wear plain bars (4), be mainly used to the bending resistance of the energy dissipation capacity and the assisted Extraction high node that increase node, after wear plain bars reserving hole channel adopt bellows, to wear bonding, the anchoring property of nonprestressed reinforcement after increasing.
5. be connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars according to claim 1 prestressing force, it is characterized in that: prestressed reinforcement (3) can provide the clamping force of beam column interface, resist the node vertical shear due to vertical load on beam and horizontal earthquake action generation by this clamping force, this clamping force also makes structure have good automatic recovery ability simultaneously, and the permanent set of structure is dwindled.
6. be connected precast concrete beam concrete-filled circular steel tube column combined joint with plain bars according to claim 1 prestressing force, it is characterized in that: at the ring flat-plate (5) of the end of side column, bearing plate while can be used as prestressed reinforcement stretch-draw, simultaneously also can after wear plain bars (4) and be welded on this ring flat-plate, after meeting, wear the anchoring requirement of reinforcing bar.
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 true CN103938731A (en) | 2014-07-23 |
| CN103938731B CN103938731B (en) | 2017-01-11 |
Family
ID=51186584
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103938731B (en) |
Cited By (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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103938731B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104032840B (en) | The prestressing force assembling frame node connecting structure of additional angle steel | |
| CN108951886B (en) | Prefabricated assembled concrete anti-seismic node | |
| CN103924680A (en) | Precast concrete beam and square-rectangular concrete-filled steel tube column combining joint employing unbonded prestressed and ordinary reinforcement for connection | |
| CN108086130B (en) | Assembled T-shaped steel pipe constraint reinforced concrete bridge pier beam column connection node | |
| CN103510639A (en) | Overlapped plate type shear wall with restorability and constructing method thereof | |
| CN103938730A (en) | Combination node for connecting concrete beam with round steel tube concrete column through unbonded prestressed ribs and ordinary steel bars | |
| CN103711329A (en) | Method for reinforcing structure by means of method of externally attaching steel-reinforced concrete framework | |
| CN203924364U (en) | The prestressing force assembling frame structure node syndeton of additional angle steel | |
| CN203640084U (en) | Superimposed slab shear wall with restorable function | |
| CN103924679B (en) | Prestressed concrete beam and circular steel pipe concrete column combined joint connected with regular rebars | |
| CN103924676B (en) | Prestressing force connects beams of concrete concrete-filled circular steel tube column node | |
| CN203334423U (en) | Rebar joint structure of prefabricated stacked balcony slab and main body | |
| CN103938732A (en) | Combination joint of prefabricated concrete beam and rectangular concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars | |
| CN110130485B (en) | Prefabricated assembly type beam column node with toothed plates and assembly method thereof | |
| CN211548015U (en) | Prefabricated assembled steel-concrete composite beam | |
| CN103938731A (en) | Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars | |
| CN204475536U (en) | With the precast member for reinforcing bar concrete that rigid joint connects | |
| CN103924682A (en) | Circular concrete-filled steel tubular column node of unbonded pre-stressing connecting concrete beam | |
| CN111719693A (en) | Prestress assembly type steel-concrete sleeved beam-column joint | |
| CN103924678A (en) | Precast concrete beam and round concrete-filled steel tube column combining joint employing unbonded prestressed and ordinary reinforcement for connection | |
| CN103924685B (en) | Prestress connected concrete beam round steel tube concrete column node | |
| CN112575891B (en) | Low-seismic-loss beam column node based on waveform BFRP connecting plate | |
| CN213539882U (en) | Middle node of steel pipe concrete column H-shaped steel beam support pi-shaped connecting side column | |
| CN103924677A (en) | Concrete beam and square-rectangular concrete-filled steel tube column combining joint employing unbonded prestressed and common reinforcement for connection | |
| CN103924681B (en) | Prestressing force connects precast concrete beam square steel tube concrete column reinforcing joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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. |