CN104963416A - Steel-reinforced concrete column constrained by circular steel tube and reinforced concrete beam node structure - Google Patents
Steel-reinforced concrete column constrained by circular steel tube and reinforced concrete beam node structure Download PDFInfo
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- CN104963416A CN104963416A CN201510342219.4A CN201510342219A CN104963416A CN 104963416 A CN104963416 A CN 104963416A CN 201510342219 A CN201510342219 A CN 201510342219A CN 104963416 A CN104963416 A CN 104963416A
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Abstract
The invention discloses a steel-reinforced concrete column constrained by a circular steel tube and a reinforced concrete beam node structure. The steel-reinforced concrete column constrained by the circular steel tube and the reinforced concrete beam node structure comprises concrete, a core steel reinforce, multiple first beam longitudinal bars, multiple second longitudinal bars, multiple first beam stirrups, a second beam stirrup, a first circular steel tube and a second circular steel tube. The core steel reinforce comprises a first steel reinforce web and a second steel reinforce web. The first steel reinforce web and the second steel reinforce web form a cross steel reinforce structure, a first steel reinforce flange is fixed to both the two ends of the first steel reinforce web, and a second steel reinforce flange is fixed to both the two ends of the second steel reinforce web. The steel-reinforced concrete column constrained by the circular steel tube and the reinforced concrete beam node structure further comprises multiple longitudinal rebars in a node area and multiple stirrups in the node area. Bar splicing is conducted on the longitudinal rebars in the node area. The core steel reinforce, the first beam longitudinal bars, the second longitudinal bars, the first beam stirrups and the second beam stirrup are all wrapped in the concrete, and the first circular steel tube and the second circular steel tube are arranged on the concrete in a sleeved mode. The steel-reinforced concrete column constrained by the circular steel tube and the reinforced concrete beam node structure has the advantages of being strong in node area strength, excellent in anti-seismic property, high in bearing capacity, good in integrity, clear and definite in force transferring, safe and reliable.
Description
Technical field
The invention belongs to civil engineering structure design field, relate to a kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure.
Background technology
In steel-concrete combined structure, the vertical load-bearing pillar of tradition mainly comprises steel core concrete column and profile steel concrete column two kinds of forms.These two kinds coupled column bearing capacity is high, anti-seismic performance good, cost is moderate, by structural engineer is favored, becomes the first-selected component form of compression ratio of frame columns for high building.But along with the accumulation of engineering practice and the development of high strength structure material, they show certain limitation gradually.The ductility of concrete filled steel tube is better than steel concrete, but steel pipe just produces effective effect of contraction to core concrete after entering elastic-plastic phase in steel core concrete column, binding effect is not strong, and steel pipe and concrete shared axial load easily cause steel pipe Plate buckling, cause pillar anti-seismic performance to decline.When steel core concrete column is connected with reinforced concrete beam, node often adopts through ribbed and outer annular-stiffer formula two kinds, and design of node is complicated, and difficulty of construction is large.Then need in profile steel concrete column to establish reinforcing cage to ensure the acting in conjunction of concrete and shaped steel, cause cross section shaped steel and reinforcing bar densely distributed, concreting and difficulty of vibrating, and concrete is tied deficiency in profile steel concrete column, cause limit value of axial compression ratio on the low side, steel and concrete supporting capacity can not be made full use of.
In long-term research work and engineering practice basis, Zhou Xuhong etc. propose a kind of Novel combined column form of structure-steel tube binding type steel concrete column.The outside steel pipe of steel tube binding type steel concrete column disconnects at bean column node place, and not by joint cores, steel pipe does not directly bear longitudinal load, only plays effect of contraction to core concrete.Steel tube binding type steel concrete column inherits the advantage of steel core concrete column and profile steel concrete column, and steel pipe is applied with continuous constraint effect to concrete, improves concrete compressive strength and improves concrete ductility; The existence of shaped steel improves the shear resistance of pillar; Concrete existence compensate for the shortcoming of shaped steel and the easy flexing unstability of empty steel pipe.Based on the mechanical property that steel tube binding type steel concrete is superior, Chinese scholars conducts in-depth research it in recent years.Research shows, the resistance to compression of steel tube binding type steel concrete column, shear-carrying capacity are high, and anti-seismic performance is superior, and stratified deformation ability is strong, and fire resistance is good, easy construction, can make full use of Materials with High Strength performance, is a kind of combining structure form with broad development prospect.
At present, the concrete research of steel tube binding type steel is mainly concentrated on to static(al) and the anti-seismic performance of component, system is not yet goed deep into the research of steel tube binding type steel concrete column-reinforced concrete beam (RC beam) node and carries out.Concrete frame joint is the important component part of frame construction, and the mechanical property of joint cores plays critical effect to the integral rigidity of structure and stress performance.All previous earthquake shows, node area is the position be easily damaged under geological process, and node area supporting capacity or deformability deficiency are the major reasons causing structural deterioration.The joint forms such as the through ribbed of conventional steel beam column built from concrete and outer annular-stiffer formula, all must rely on steel pipe Transfer of Shear in varying degrees, thus make steel pipe directly bear longitudinal force.And when adopting steel tube binding type steel concrete frame trestle, due to the essential distinction of force modes, steel pipe disconnects in node area, and node area is on the weak side, and conventional node cannot be continued to use.Promote the new structural members that this stress performance of steel tube binding type steel concrete column is good, must the node that adapts with it of research and design.
In sum, the excellent in mechanical performance of steel tube binding type steel concrete column, has wide application prospect.But because outsourcing post steel pipe disconnects in node area, there is essential distinction with the force modes of traditional group zygostyle, rely on outside steel pipe in various degree.
The conventional node of Transfer of Shear cannot be continued to use, and the node being applicable to steel tube binding type steel concrete column studies not yet system expansion, almost blank, seriously constrain the concrete application & development of steel tube binding type steel, joint behavior research is key scientific problems urgently to be resolved hurrily, therefore, system further investigation steel tube binding type steel concrete column and reinforced concrete beam joints performance, proposition meets " strong node, weak component " design principles, bearing capacity is high, good integrity, power transmission is clear and definite, and it is safe and reliable, the joint form of easy construction, it is steel tube confinement reinforced concrete structure research aspect key scientific problems urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure, the node area intensity of this structure is strong, excellent earthquake resistance, bearing capacity is high, good integrity, power transmission is clear and definite, and safely, reliably.
For achieving the above object, round steel pipe binding type steel concrete column of the present invention and reinforced concrete beam node structure comprise concrete, core shaped steel, some first beams indulge muscle, some second beams indulge muscle, some first beam stirrups, the second beam stirrup, the first round steel pipe and the second round steel pipe;
Described core type ladle draws together the first shape steel web and the second shape steel web, first shape steel web and the second shape steel web form cross-shaped profile steel structure, and the two ends of the first shape steel web are all fixed with the first section steel flange, the two ends of the second shape steel web are all fixed with the second section steel flange, each first beam indulges muscle all through the side of the second shape steel web, and each first beam indulges the both sides that muscle is distributed in the first section steel flange, the side that each first beam indulges muscle is connected by the first beam stirrup; Each second beam indulges muscle all through the first shape steel web, and each second beam indulges the both sides that muscle is distributed in the second section steel flange, and the side that each second beam indulges muscle is connected by the second beam stirrup, and the first beam is indulged muscle and the second beam and indulged muscle and constitute a decussate texture;
First round steel pipe and the second round steel pipe are all socketed on described core shaped steel, and the first round steel pipe and the second round steel pipe lay respectively at the both sides up and down of described decussate texture;
Described core shaped steel, the first beam indulge muscle, the second beam indulges muscle, the first beam stirrup and the second beam stirrup are all wrapped in concrete, and the first round steel pipe and the second round steel pipe are socketed on concrete.
Also comprise some node area longitudinal reinforcements and some node area stirrups, each node area longitudinal reinforcement is uniformly distributed along the circumference of core shaped steel, and the side of each node area longitudinal reinforcement is connected by node area stirrup, make each node area stirrup and each node area longitudinal reinforcement form reinforcing cage, the two ends up and down of each node area longitudinal reinforcement are individually fixed on the inwall of the first round steel pipe and the inwall of the second round steel pipe.
Described first round steel pipe and have gap between the second round steel pipe and decussate texture.
The side opening of described first shape steel web is provided with some first through holes, and the second beam indulges muscle through described first through hole; The side opening of described second shape steel web is provided with some second through holes, and the first beam indulges muscle through described second through hole.
The parallel distribution of each node area longitudinal reinforcement; The parallel distribution of each node area stirrup.
Each first beam indulges the parallel distribution of muscle, the parallel distribution of the first beam stirrup; Each second beam indulges the parallel distribution of muscle, the parallel distribution of the second beam stirrup.
The present invention has following beneficial effect:
Round steel pipe binding type steel concrete column of the present invention and reinforced concrete beam node structure are provided with some first beams and indulge muscle and the second beam indulges muscle, first beam indulges muscle and the second beam indulges the second shape steel web and the first shape steel web that muscle is each passed through core shaped steel, simultaneously, indulge muscle when each first beam to be connected by the first beam stirrup, each second beam is indulged muscle and is connected by the second beam stirrup, indulge muscle and the second beam by the first beam and indulge muscle through node area, the effective effect improving transmission moment of flexure, thus strengthen the intensity of node area, improve Seismic Behavior, safety, globality and bearing capacity, round steel pipe and cross-shaped profile steel structure can provide effective effect of contraction to round steel pipe inner concrete, concrete simultaneously in round steel pipe also can make up shaped steel and empty steel pipe with the shortcoming of easy flexing unstability.
Further, also comprise some node area longitudinal reinforcements and some node area stirrups, and node area indulges muscle work and muscle process, make node area stirrup and node area longitudinal reinforcement form reinforcing cage, effectively make up the loss that round steel pipe disconnects axial rigidity and the intensity produced, optimize the design of node area.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view of the present invention.
Wherein, 1 be node area longitudinal reinforcement, 2 be node area stirrup, 31 be the first shape steel web, 32 be the second shape steel web, 41 to be the first section steel flange, 42 be the second section steel flange, 5 be core shaped steel, 62 to be the first round steel pipe, 61 be the second round steel pipe, 7 for concrete, 81 be that to indulge muscle, 82 be that to indulge muscle, 91 be the first beam stirrup to the second beam to the first beam.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1 and Fig. 2, round steel pipe binding type steel concrete column of the present invention and reinforced concrete beam node structure comprise concrete seven, core shaped steel 5, some first beams indulge muscle 81, some second beams indulge muscle 82, some first beam stirrup 91, second beam stirrups, the first round steel pipe 62 and the second round steel pipe 61; Core shaped steel 5 comprises the first shape steel web 31 and the second shape steel web 32, first shape steel web 31 and the second shape steel web 32 form cross-shaped profile steel structure, and the two ends of the first shape steel web 31 are all fixed with the first section steel flange 41, the two ends of the second shape steel web 32 are all fixed with the second section steel flange 42, each first beam indulges muscle 81 all through the side of the second shape steel web 32, and each first beam indulges the both sides that muscle 81 is distributed in the first section steel flange 41, the side that each first beam indulges muscle 81 is connected by the first beam stirrup 91; Each second beam indulges muscle 82 all through the first shape steel web 31, each second beam indulges the both sides that muscle 82 is distributed in the second section steel flange 42, and the side that each second beam indulges muscle 82 is connected by the second beam stirrup, the first beam is indulged muscle 81 and the second beam and is indulged muscle 82 and constitute a decussate texture; First round steel pipe 62 and the second round steel pipe 61 are all socketed on described core shaped steel 5, and the first round steel pipe 62 and the second round steel pipe 61 lay respectively at the both sides up and down of described decussate texture; Described core shaped steel 5, first beam is indulged muscle 81, second beam and is indulged muscle 82, first beam stirrup 91 and the second beam stirrup is all wrapped in concrete seven, and the first round steel pipe 62 and the second round steel pipe 61 are socketed on concrete seven.
It should be noted that, the present invention also comprises some node area longitudinal reinforcements 1 and some node area stirrups 2, each node area longitudinal reinforcement 1 is uniformly distributed along the circumference of core shaped steel 5, and the side of each node area longitudinal reinforcement 1 is connected by node area stirrup 2, make each node area stirrup 2 form reinforcing cage with each node area longitudinal reinforcement 1, the two ends up and down of each node area longitudinal reinforcement 1 are individually fixed on the inwall of the first round steel pipe 62 and the inwall of the second round steel pipe 61; First round steel pipe 62 and have gap between the second round steel pipe 61 and decussate texture; The side opening of the first shape steel web 31 is provided with some first through holes, and the second beam indulges muscle 82 through described first through hole; The side opening of described second shape steel web 32 is provided with some second through holes, and the first beam indulges muscle 81 through described second through hole; The extension of node area longitudinal reinforcement 1 is 1.5-2.0 times of concrete seven deck-molding.The parallel distribution of each node area longitudinal reinforcement 1; The parallel distribution of each node area stirrup 2.Each first beam indulges the parallel distribution of muscle 81, the parallel distribution of the first beam stirrup 91; Each second beam indulges the parallel distribution of muscle 82, the parallel distribution of the second beam stirrup.
Implementation process of the present invention is:
1) first by designing requirement processing and fabricating core shaped steel 5, and hole is opened on first shape steel web 31 and the second shape steel web 32 of core shaped steel 5; 2) core shaped steel 5 and the second round steel pipe 61 is lifted; 3) by design colligation node area longitudinal reinforcement 1 and node area stirrup 2, conveniently connect the first beam and indulge muscle 81 and the second beam indulges muscle 82, can node area stirrup 2 under first colligation in the second round steel pipe 61, and with construction measure, reinforcing cage is fixed in the second round steel pipe 61; 4) the first beam is indulged muscle 81 and the second beam to indulge muscle 82 and directly pass from the through hole core shaped steel 5, and colligation first beam stirrup 91 and the second beam stirrup; 5) the node area stirrup 2 on colligation Nodes and top; 6) the first round steel pipe 62 is lifted; 7) casting beams, post and Nodes concrete seven, overall unification is built.
Claims (6)
1. a round steel pipe binding type steel concrete column and reinforced concrete beam node structure, it is characterized in that, comprise concrete (7), core shaped steel (5), some first beams indulge muscle (81), some second beams indulge muscle (82), some first beam stirrups (91), the second beam stirrup, the first round steel pipe (62) and the second round steel pipe (61);
Described core shaped steel (5) comprises the first shape steel web (31) and the second shape steel web (32), first shape steel web (31) and the second shape steel web (32) form cross-shaped profile steel structure, and the two ends of the first shape steel web (31) are all fixed with the first section steel flange (41), the two ends of the second shape steel web (32) are all fixed with the second section steel flange (42), each first beam indulges muscle (81) all through the side of the second shape steel web (32), and each first beam indulges the both sides that muscle (81) is distributed in the first section steel flange (41), the side that each first beam indulges muscle (81) is connected by the first beam stirrup (91), each second beam indulges muscle (82) all through the first shape steel web (31), each second beam indulges the both sides that muscle (82) is distributed in the second section steel flange (42), and the side that each second beam indulges muscle (82) is connected by the second beam stirrup, the first beam is indulged muscle (81) and the second beam and is indulged muscle (82) and constitute a decussate texture,
First round steel pipe (62) and the second round steel pipe (61) are all socketed on described core shaped steel (5), and the first round steel pipe (62) and the second round steel pipe (61) lay respectively at the both sides up and down of described decussate texture;
Described core shaped steel (5), the first beam indulge muscle (81), the second beam indulges muscle (82), the first beam stirrup (91) and the second beam stirrup are all wrapped in concrete (7), and the first round steel pipe (62) and the second round steel pipe (61) are socketed on concrete (7).
2. round steel pipe binding type steel concrete column according to claim 1 and reinforced concrete beam node structure, it is characterized in that, also comprise some node area longitudinal reinforcements (1) and some node area stirrups (2), each node area longitudinal reinforcement (1) is uniformly distributed along the circumference of core shaped steel (5), and the side of each node area longitudinal reinforcement (1) is connected by node area stirrup (2), each node area stirrup (2) and the colligation of each node area longitudinal reinforcement (1) is made to form reinforcing cage, the two ends up and down of each node area longitudinal reinforcement (1) are individually fixed on the inwall of the first round steel pipe (62) and the inwall of the second round steel pipe (61), and all each node area longitudinal reinforcements (1) are done and muscle process.
3. round steel pipe binding type steel concrete column according to claim 1 and reinforced concrete beam node structure, is characterized in that, described first round steel pipe (62) and have gap between the second round steel pipe (61) and decussate texture.
4. round steel pipe binding type steel concrete column according to claim 1 and reinforced concrete beam node structure, it is characterized in that, the side opening of described first shape steel web (31) is provided with some first through holes, and the second beam indulges muscle (82) through described first through hole; The side opening of described second shape steel web (32) is provided with some second through holes, and the first beam indulges muscle (81) through described second through hole.
5. round steel pipe binding type steel concrete column according to claim 2 and reinforced concrete beam node structure, is characterized in that, the parallel distribution of each node area longitudinal reinforcement (1); The parallel equidistant distribution of each node area stirrup (2), the parallel equidistant distribution of mid portion encryption.
6. round steel pipe binding type steel concrete column according to claim 1 and reinforced concrete beam node structure, is characterized in that, each first beam indulges muscle (81) parallel distribution, the first beam stirrup (91) parallel distribution; Each second beam indulges muscle (82) parallel distribution, the parallel distribution of the second beam stirrup.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510342219.4A CN104963416A (en) | 2015-06-18 | 2015-06-18 | Steel-reinforced concrete column constrained by circular steel tube and reinforced concrete beam node structure |
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| CN201510342219.4A CN104963416A (en) | 2015-06-18 | 2015-06-18 | Steel-reinforced concrete column constrained by circular steel tube and reinforced concrete beam node structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299724A (en) * | 2017-06-28 | 2017-10-27 | 华南理工大学 | A kind of overlapping stirrup and method for improving frame column ductility |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061416A (en) * | 2011-10-21 | 2013-04-24 | 长江大学 | Joint structure of steel-pipe-restraining steel concrete columns and reinforced concrete beams |
| JP2014009563A (en) * | 2012-07-03 | 2014-01-20 | Jfe Steel Corp | Steel reinforced concrete column-steel beam joint structure |
| CN204715537U (en) * | 2015-06-18 | 2015-10-21 | 长安大学 | A kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure |
-
2015
- 2015-06-18 CN CN201510342219.4A patent/CN104963416A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061416A (en) * | 2011-10-21 | 2013-04-24 | 长江大学 | Joint structure of steel-pipe-restraining steel concrete columns and reinforced concrete beams |
| JP2014009563A (en) * | 2012-07-03 | 2014-01-20 | Jfe Steel Corp | Steel reinforced concrete column-steel beam joint structure |
| CN204715537U (en) * | 2015-06-18 | 2015-10-21 | 长安大学 | A kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure |
Non-Patent Citations (2)
| Title |
|---|
| 周绪红 等: "《钢管约束混凝土柱的性能与设计》", 30 September 2010, 科技出版社 * |
| 李斌 等: "《混凝土结构设计原理》", 31 August 2014, 清华大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299724A (en) * | 2017-06-28 | 2017-10-27 | 华南理工大学 | A kind of overlapping stirrup and method for improving frame column ductility |
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Application publication date: 20151007 |