CN103924683A - Prestress connected concrete beam rectangular steel tube concrete column node - Google Patents
Prestress connected concrete beam rectangular steel tube concrete column node Download PDFInfo
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- CN103924683A CN103924683A CN201410151353.1A CN201410151353A CN103924683A CN 103924683 A CN103924683 A CN 103924683A CN 201410151353 A CN201410151353 A CN 201410151353A CN 103924683 A CN103924683 A CN 103924683A
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- tube concrete
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Abstract
The invention provides a prestress connected concrete beam rectangular steel tube concrete column node, and belongs to the technical field of architectural structures. The prestress connected concrete beam rectangular steel tube concrete column node comprises a rectangular steel tube concrete column, a reinforced concrete beam, a prestress tendon, a steel plate, and box iron. The prestress connected concrete beam rectangular steel tube concrete column node is characterized in that the rectangular steel tube concrete column and the reinforced concrete beam are cast-in-place; the rectangular steel tube concrete column and the reinforced concrete beam are connected through the prestress tendon; a hole channel is formed in the connection cross-section position of the rectangular steel tube concrete column and the reinforced concrete beam, and a metal bellows is pre-buried in the hole channel; a steel plate is welded on the connection cross-section position of the rectangular steel tube concrete and the beam; and a corresponding hole is formed in the steel plate; the box iron is welded on to the rectangular steel tube. The prestress connected concrete beam rectangular steel tube concrete column node is quick in construction speed, capable of effectively increasing shear capacity of the node and enhancing the connection performance, and wide in the application prospect.
Description
Technical field
The present invention relates to prestressing force and connect concrete beam square steel tube concrete column reinforcing joint, 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, the industrial requirement that meets 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, obtained good economic effect and architectural effect.Wherein, concrete-filled circular steel tube column has been done more research in China, has worked out corresponding rules, has also obtained more application in Practical Project.Square steel tube concrete is an important component part of whole encased structures, it with concrete filled steel tube in status arranged side by side.Square steel tube concrete profile rule, is conducive to coordinate architectural design, is conducive to beam column and connects, and has good application prospect.
The connected node of square steel tube concrete column and beam is one of key issue while carrying out concrete filled steel tube engineering design, 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, and the construction of node and design difficulty often become the bottleneck factor that the novel superior structural of restriction is applied.Therefore, research and develop a kind of novel on-the-spot simple and fast of installing that has, less demanding to operating personnel's technology and construction environment, connect safe and reliable square steel tube 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 present invention is to provide a kind of prestressing force to connect concrete beam square steel tube concrete column reinforcing joint, guaranteeing under the prerequisite that node connects effectively, power transmission is clear and definite, by improving reinforced concrete beam and square steel tube concrete column reinforcing joint connected mode, adopt presstressed reinforcing steel to assemble, reduce 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.
For achieving the above object, the technical solution used in the present invention is that a kind of prestressing force connects concrete beam square steel tube concrete column reinforcing joint, as shown in Figure 1, 2, this node comprises square steel tube concrete column (1) and reinforced concrete beam (2), and the two consists of whole presstressed reinforcing steel; Square steel tube concrete column (1) is cast-in-place with reinforced concrete beam (2); Square steel tube concrete column adopts presstressed reinforcing steel to be connected with reinforced concrete beam (2); On the cross section that square steel tube concrete column (1) is connected with reinforced concrete beam (2), leave duct, built-in metal bellows (4) in duct; Square steel tube concrete is connected section and is welded with steel plate (5) with beam, steel plate has corresponding hole on (5); Channel-section steel (6) is welded on square steel tube.
Described steel 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.
The design principles of the prestressing force size of presstressed reinforcing steel (3) is: should guarantee the friction shear resisting ability of junction, make again the stress in presstressed reinforcing steel remain in yield limit.
Bearing plate when the end of side column ring flat-plate can be used as prestressed reinforcement (3) stretch-draw.
Compared with prior art, the present invention has following beneficial effect.
Adopt this node site operation speed fast, and can guarantee the reliability that node connects.This node adopts ring flat-plate, the weakening effect to bearing capacity in the time of can alleviating round steel pipe and punch; 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, the economy of Zhe Gei China and social development bring huge economic benefit, have a extensive future.
Accompanying drawing explanation
Fig. 1 is middle node front elevation view
Fig. 2 is mid-side node front elevation view
Fig. 3 is that Fig. 1 is along the sectional view of A-A
Fig. 4 is that Fig. 2 is along the sectional view of B-B
Fig. 5 is that Fig. 2 is along the sectional view of C-C
Fig. 6 is that Fig. 1 is along the sectional view of D-D
In figure, 1, square steel tube concrete column, 2, reinforced concrete beam, 3, presstressed reinforcing steel, 4, metal bellows, 5, steel plate, 6, channel-section steel, 7, mortar.
The specific embodiment
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 connects concrete beam square steel tube concrete column reinforcing joint structure as shown in Figure 1:
1, square steel tube concrete location
The steel pipe of square steel tube concrete column (1) carries out perforate processing in strict accordance with drawing in steel work processing factory; At square steel tube concrete column (1) tie-beam section, adopt weld all around mode to weld ring flat-plate (5) and channel-section steel (6); Square steel tube concrete column (1) lifting location.
2, colligation beam reinforcement cages and prestressed reinforcement are fixed
Install beam bottom mother plate, in strict accordance with design drawing colligation beam reinforcement cages; Install side form on one side, metal bellows position line is marked in the presstressed reinforcing steel position providing by drawing on side form, has welded successively bellows fixed support on beam stirrup, lays metal bellows (4).
3, bonded prestressed tendon lashing
After bellows fixes, in anchored end, install anchor plate, by presstressed reinforcing steel from smooth-going the penetrating in bellows of anchored end.Stretching end spills 0.8m, and mouth of pipe cement bag paper jam-pack prevents that cement paste and curing water from flowing into, and the partial prestressing reinforcing bar that leaks outside wraps and prevents moisture corrosion presstressed reinforcing steel with gummed paper.
4, concreting
Build square steel tube concrete column and reinforced concrete beam." concrete engineering construction technological standards " is shown in concreting method.
5, tension of prestressed tendon
Concrete strength reach design strength 85% after carry out the stretch-draw of presstressed reinforcing steel, stretch-draw adopts symmetrical stretching mode, stretch-draw line of action of force overlaps with duct center line.Stretch-draw is controlled and is adopted stress and stretch value dual control, and stressing sequence is 0 → 10% σ
con→ 100% σ
con→ 103% σ
con→ anchoring.
6, duct grouting
After stretch-draw completes, within 48h, mortar (7) is filled with in duct, grouting adopts 42.5R Portland cement, keeps continuously consistent in filling process.
7, 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, just in the end of side column, is welded on ring flat-plate (5) by presstressed reinforcing steel upper, bearing plate when this ring flat-plate can be used as tension of prestressed tendon.
Claims (4)
1. prestressing force connects concrete beam square steel tube concrete column reinforcing joint, it is characterized in that: this node comprises square steel tube concrete column (1), reinforced concrete beam (2), presstressed reinforcing steel (3), steel plate (5) and channel-section steel (6); Square steel tube concrete column (1) is cast-in-place with reinforced concrete beam (2); Square steel tube concrete column adopts presstressed reinforcing steel to be connected with reinforced concrete beam (2); On the cross section that square steel tube concrete column (1) is connected with reinforced concrete beam (2), leave duct, built-in metal bellows (4) in duct; Square steel tube concrete is connected section and is welded with steel plate (5) with beam, steel plate has corresponding hole on (5); Channel-section steel (6) is welded on square steel tube.
2. prestressing force according to claim 1 connects concrete beam square steel tube concrete column reinforcing joint, it is characterized in that: steel core concrete column (1) and reinforced concrete beam (2) are for cast-in-place, and what presstressed reinforcing steel (3) adopted is bonded prestressed tendon.
3. prestressing force according to claim 1 connects concrete beam square steel tube concrete column reinforcing joint, it is characterized in that: steel plate (5) is general steel plate, and width is beam section height, and thickness is thickness of steel pipe.
4. prestressing force according to claim 1 connects concrete beam square steel tube concrete column reinforcing joint, it is characterized in that: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151353.1A CN103924683B (en) | 2014-04-14 | 2014-04-14 | Prestressing force connects beams of concrete square steel tube concrete column reinforcing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151353.1A CN103924683B (en) | 2014-04-14 | 2014-04-14 | Prestressing force connects beams of concrete square steel tube concrete column reinforcing joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924683A true CN103924683A (en) | 2014-07-16 |
| CN103924683B CN103924683B (en) | 2017-06-27 |
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| CN201410151353.1A Expired - Fee Related CN103924683B (en) | 2014-04-14 | 2014-04-14 | Prestressing force connects beams of concrete square steel tube concrete column reinforcing joint |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436578Y (en) * | 2000-06-16 | 2001-06-27 | 王关根 | Universal joint device for steel structure building |
| JP2002161512A (en) * | 2000-09-12 | 2002-06-04 | Shimizu Corp | Connection structure of precast concrete block |
| CN202416701U (en) * | 2011-12-29 | 2012-09-05 | 中国一冶集团有限公司 | Combined pre-stressed concrete beam with binder and no binder |
| CN203096949U (en) * | 2013-02-21 | 2013-07-31 | 华汇工程设计集团股份有限公司 | Pre-tensioning method prestressing force superposed beam structural system |
| CN203174771U (en) * | 2012-12-27 | 2013-09-04 | 湖南顺天建设集团有限公司 | Annular plate node of steel pipe concrete column and bonded prestress steel bar concrete beam |
| CN203200925U (en) * | 2013-04-16 | 2013-09-18 | 东南大学 | Prefabricated concrete framework beam column connected node structure |
-
2014
- 2014-04-14 CN CN201410151353.1A patent/CN103924683B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436578Y (en) * | 2000-06-16 | 2001-06-27 | 王关根 | Universal joint device for steel structure building |
| JP2002161512A (en) * | 2000-09-12 | 2002-06-04 | Shimizu Corp | Connection structure of precast concrete block |
| CN202416701U (en) * | 2011-12-29 | 2012-09-05 | 中国一冶集团有限公司 | Combined pre-stressed concrete beam with binder and no binder |
| CN203174771U (en) * | 2012-12-27 | 2013-09-04 | 湖南顺天建设集团有限公司 | Annular plate node of steel pipe concrete column and bonded prestress steel bar concrete beam |
| CN203096949U (en) * | 2013-02-21 | 2013-07-31 | 华汇工程设计集团股份有限公司 | Pre-tensioning method prestressing force superposed beam structural system |
| CN203200925U (en) * | 2013-04-16 | 2013-09-18 | 东南大学 | Prefabricated concrete framework beam column connected node structure |
Non-Patent Citations (1)
| Title |
|---|
| 朱丙寅: "《建筑结构设计问答及分析》", 30 November 2009 * |
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| CN103924683B (en) | 2017-06-27 |
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