CN103898983A - Middle layer joint connecting structure of concrete-filled steel tubular column and reinforced concrete beams - Google Patents
Middle layer joint connecting structure of concrete-filled steel tubular column and reinforced concrete beams Download PDFInfo
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- CN103898983A CN103898983A CN201210570490.XA CN201210570490A CN103898983A CN 103898983 A CN103898983 A CN 103898983A CN 201210570490 A CN201210570490 A CN 201210570490A CN 103898983 A CN103898983 A CN 103898983A
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Abstract
The invention relates to the field of structural engineering technologies, in particular to a middle layer joint connecting structure of a concrete-filled steel tubular column and reinforced concrete beams. The middle layer joint connecting structure comprises the concrete-filled steel tubular column and the reinforced concrete beams connected with the concrete-filled steel tubular column. The concrete-filled steel tubular column comprises a steel tube, an annular stiffening plate and vertical stiffening ribs are arranged in the steel tube, column end transition plates are arranged outside the steel tube and connected with upper main reinforcement connecting plates on the upper portions of the reinforced concrete beams and lower main reinforcement connecting plates on the lower portions of the reinforced concrete beams through high-strength bolts, and joint shear reinforcements are arranged at the connecting position between every two adjacent reinforced concrete beams. Connecting joints between the concrete-filled steel tubular column and the reinforced concrete beams are connected through high-strength bolts, concrete is cast, so that stress and plastic deformation capacity of a beam column are improved, the on-site welding quantity is small, construction is easy, and the middle layer joint connecting structure has the advantages of being good in ductility, easy and convenient to manufacture and install and convenient to repair after an earthquake and has good application prospects in the fields of large-scale public buildings and others.
Description
Technical field
The present invention relates to technical field of structural engineering, be specifically related to a kind of steel core concrete column and reinforced concrete beam middle level node connecting structure.
Background technology
In prior art, steel core concrete column and steel concrete beam connecting node are more ripe.At present, domestic existing a lot of case histories that adopt steel core concrete column to be connected with reinforced concrete beam or section steel beam: the annular bracket welding on steel pipe column and the main muscle of reinforced concrete beam are welded to connect, or the junction plate welding on steel pipe column and the direct welding of the main muscle of reinforced concrete beam etc.
The annular bracket welding on above-mentioned steel pipe column or junction plate are to be all directly connected with the main muscle of reinforced concrete beam, although simple in structure, but these connected modes can not solve the problem of the stressed and plastic strain (power consumption) of engineering beam-column well, running under rarely occurred earthquake load action, bean column node rigidity is unfavorable for too by force the slippage of consuming energy, be easy to destroyedly, and in prior art, stressed research and the joint structure data for steel core concrete column and steel concrete beam connecting node is few.Along with the increase of longspan structure demand, steel core concrete column and the application of reinforced concrete beam syndeton are more and more.But the complex structure of Frame Joints of Concrete-Filled Steel Tube and of a great variety, the domestic needs that still do not have so far a set of widely applicable structural form and corresponding computational methods to meet encased structures development.
Summary of the invention
Object of the present invention is exactly the defect for prior art, proposes a kind of steel core concrete column and reinforced concrete beam middle level node connecting structure, and this structure can effectively strengthen the stressed and plastic deformation ability of beam column.
The technical solution used in the present invention is: a kind of steel core concrete column and reinforced concrete beam middle level node connecting structure, comprise steel core concrete column and connected reinforced concrete beam, steel core concrete column comprises steel pipe, in described steel pipe, be provided with ring stiffener, ring stiffener and steel pipe junction are provided with vertical stiffening rib, the outside position corresponding with ring stiffener of described steel pipe is laterally provided with styletable rebound, described reinforced concrete beam top is provided with main muscle junction plate, bottom is provided with lower main muscle junction plate, one end of upper main muscle junction plate and lower main muscle junction plate has some slotted holes, on, the styletable rebound at lower two ends is connected with one end of upper main muscle junction plate and lower main muscle junction plate respectively by high-strength bolt, upper placing of reinforcement in the other end and the described reinforced concrete beam of upper main muscle junction plate and lower main muscle junction plate, lower placing of reinforcement connects, the plain concrete region of adjacent two reinforced concrete beams is provided with node shear reinforcement.
Preferably, establish waist muscle and stirrup in described reinforced concrete beam, waist muscle transverse weld is on steel pipe tube wall, and stirrup wraps up whole Sectional Dimension of Reinforced Concrete Beam until main muscle junction plate place.
Preferably, described outer wall of steel pipe is fixed with peg.
Preferably, on described ring stiffener, offer air-vent.
Preferably, after described high-strength bolt is installed, filled polyurethane organic material in the gap of slotted hole.
Preferably, described node shear reinforcement comprises the U-shaped reinforcing bar of shearing resistance, C steel bar and reinforcing bar fixture, the bending segment at the upper and lower two ends of C steel bar respectively with the styletable rebound bottom welding at upper and lower two ends, and fix with reinforcing bar fixture, oblique reinforcing bar is laterally interted in the outside of C steel bar.
Preferably, the U-shaped reinforcing bar of described shearing resistance and reinforcing bar fixture are all fixed on steel pipe sidewall.
After each structure in above-mentioned steel core concrete column and reinforced concrete beam is installed, welds well, concreting at the construction field (site), forms an entirety.
The present invention arranges lateral stiffening plate and vertical stiffening rib in steel pipe, strengthen the ability that steel pipe column meets with stresses, steel pipe arranged outside rebound, adopts slotted hole and high-strength bolt to be connected between the main muscle junction plate of establishing on rebound and reinforced concrete beam, has strengthened the plastic deformation ability of beam column.In the time running into earthquake beam column and be subject to impacting, high-strength bolt has certain slide displacement in slotted hole, and the impact force that beam column is subject to has certain cushioning effect, thereby can prevent that beam column is destroyed, occurs the situation of total Collapse.
Steel core concrete column of the present invention adopts slotted hole and high-strength bolt to be connected with steel concrete beam connecting node, manage concreting on interior and beam, Site Welding amount is less, construction is simple, have that ductility is good, fabrication and installation are easy, be convenient to shake the advantages such as rear reparation, have a good application prospect in fields such as large public buildings.
Accompanying drawing explanation
Fig. 1 is plane structure schematic diagram of the present invention.
Fig. 2 be in Fig. 1 A-A to cross-sectional view.
Fig. 3 be in Fig. 1 B-B to cross-sectional view.
Fig. 4 be in Fig. 1 C-C to cross-sectional view.
Fig. 5 be in Fig. 1 D-D to cross-sectional view.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, be convenient to be well understood to the present invention, but they do not form restriction to the present invention.
As shown in Figure 1, the reinforced concrete beam 2 that the present invention includes steel core concrete column 1 and be attached thereto, in the plain concrete region of the junction of reinforced concrete beam 2 and steel core concrete column 1, be provided with node shear reinforcement, node shear reinforcement forms concrete ring to overall structure by node area concrete.
As shown in Figure 2, steel core concrete column 1 comprises steel pipe 101, in steel pipe 101, be provided with ring stiffener 102, on ring stiffener 102, offer concreting hole 103, ring stiffener 102 is provided with vertical stiffening rib 106 with the junction of steel pipe 101, the outside position corresponding with ring stiffener 102 of steel pipe 101 is laterally provided with styletable rebound 104, and steel pipe 101 external stabilities have peg 105.
As shown in Figure 4, Figure 5, the styletable rebound 104 of upper/lower terminal is connected with the lower main muscle junction plate 302 that is located at reinforced concrete beam 2 bottoms with the upper main muscle junction plate 301 that is located at reinforced concrete beam 2 tops respectively by high-strength bolt 304, upper main muscle junction plate 301 and lower main muscle junction plate 302 are provided with the slotted hole 303 that can pass for high-strength bolt 304, after high-strength bolt 304 is installed, filled polyurethane organic material 305 in the gap of slotted hole 303.
As shown in Figure 3, described reinforced concrete beam 2 tops are provided with placing of reinforcement 201, bottom is provided with lower placing of reinforcement 203, upper placing of reinforcement 201, lower placing of reinforcement 203 are connected with upper main muscle junction plate 301, lower main muscle junction plate 302 respectively, in reinforced concrete beam 2, establish waist muscle 202 and rectangle hoop 204, waist muscle 202 is connected with steel pipe 101, and rectangle hoop 204 is installed on whole reinforced concrete beam 2 cross sections until by main muscle junction plate parcel.
As shown in Fig. 2, Fig. 5, node shear reinforcement comprises shear reinforcement 401, C steel bar 402 and reinforcing bar fixture 403, the bending segment at C steel bar two ends Shang Xia 402 is welded on respectively the bottom of upper and lower two ends styletable rebound 104, and fixing with reinforcing bar fixture 403, the laterally interspersed oblique reinforcing bar 404 in the outside of C steel bar 402.Shear reinforcement 401 and reinforcing bar fixture 403 are all fixed on steel pipe 101 sidewalls.
Fabrication and installation process of the present invention is: produce in factory steel pipe 101, weld ring stiffener 102 and vertical stiffening rib 106 therein, the double concreting hole of doing of reserved air-vent 103(on ring stiffener 102), at steel pipe external welding styletable rebound 104 and peg 105.Upper main muscle junction plate 301, lower main muscle junction plate 302 are made respectively together with upper placing of reinforcement 201 in reinforced concrete beam 2, lower placing of reinforcement 203, are welded to connect, and according to beam steel row, corresponding main muscle rebound up and down can arrange one or two.In the middle of reinforced concrete beam 2, waist muscle 202 welds with steel pipe 101, and rectangle hoop 204 is connected with middle waist muscle 202, and runs through whole reinforced concrete beam 2.Steel pipe styletable rebound 104 is connected by slotted hole 303, high-strength bolt 304 with upper and lower main muscle rebound 301,302, after welding high-strength bolt 304, and filled polyurethane organic material 305 in the gap of slotted hole 303.Steel pipe 101 outside welding shear reinforcement 401 and reinforcing bar fixtures 403, bean column node is the interior C steel bar 402 of arranging of plain concrete region of configuration reinforcement not, it is fixing that C steel bar 402 passes through reinforcing bar fixture 403, simultaneously at the laterally interspersed oblique reinforcing bar 404 in C steel bar outside.After above-mentioned each Member Welding is good, location and installation at the construction field (site), then concreting forms an entirety.
Claims (7)
1. a steel core concrete column and reinforced concrete beam middle level node connecting structure, comprise steel core concrete column (1) and the reinforced concrete beam (2) being connected with steel core concrete column (1), steel core concrete column (1) comprises steel pipe (101), in described steel pipe (101), be provided with ring stiffener (102), ring stiffener (102) is provided with vertical stiffening rib (106) with steel pipe (101) junction, it is characterized in that: the outside position corresponding with ring stiffener (102) of described steel pipe (101) is laterally provided with styletable rebound (104), described reinforced concrete beam (2) top is provided with main muscle junction plate (301), bottom is provided with lower main muscle junction plate (302), one end of upper main muscle junction plate (301) and lower main muscle junction plate (302) has some slotted holes (303), on, the styletable rebound (104) at lower two ends is connected with one end of upper main muscle junction plate (301) and lower main muscle junction plate (302) respectively by high-strength bolt (304), upper placing of reinforcement (201) in the other end of upper main muscle junction plate (301) and lower main muscle junction plate (302) and described reinforced concrete beam (2), lower placing of reinforcement (203) connects, the plain concrete region of adjacent two reinforced concrete beams (2) is provided with node shear reinforcement.
2. steel core concrete column according to claim 1 and reinforced concrete beam middle level node connecting structure, it is characterized in that: in described reinforced concrete beam (2), establish waist muscle (202) and stirrup (204), waist muscle (202) transverse weld is on steel pipe (101) tube wall, and stirrup (204) wraps up whole reinforced concrete beam (2) cross section until main muscle junction plate place.
3. steel core concrete column according to claim 1 and reinforced concrete beam middle level node connecting structure, is characterized in that: described steel pipe (101) outer wall is fixed with peg (105).
4. steel core concrete column according to claim 1 and reinforced concrete beam middle level node connecting structure, is characterized in that: on described ring stiffener (102), offer air-vent (103).
5. steel core concrete column according to claim 1 and reinforced concrete beam middle level node connecting structure, is characterized in that: after described high-strength bolt is installed, and filled polyurethane organic material (305) in the gap of slotted hole (303).
6. steel core concrete column according to claim 1 and reinforced concrete beam middle level node connecting structure, it is characterized in that: described node shear reinforcement comprises the U-shaped reinforcing bar of shearing resistance (401), C steel bar (402) and reinforcing bar fixture (403), the bending segment at the upper and lower two ends of C steel bar (402) respectively with styletable rebound (104) bottom welding at upper and lower two ends, and fixing with reinforcing bar fixture (403), the laterally interspersed oblique reinforcing bar (404) in the outside of C steel bar (402).
7. steel core concrete column according to claim 6 and reinforced concrete beam middle level node connecting structure, is characterized in that: the U-shaped reinforcing bar of described shearing resistance (401) and reinforcing bar fixture (403) are all welded on steel pipe (101) sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570490.XA CN103898983A (en) | 2012-12-25 | 2012-12-25 | Middle layer joint connecting structure of concrete-filled steel tubular column and reinforced concrete beams |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210570490.XA CN103898983A (en) | 2012-12-25 | 2012-12-25 | Middle layer joint connecting structure of concrete-filled steel tubular column and reinforced concrete beams |
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| CN103898983A true CN103898983A (en) | 2014-07-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895197A (en) * | 2015-05-29 | 2015-09-09 | 重庆大学 | Sectional steel concrete column-steel bar concrete beam joint connection method |
| CN106638989A (en) * | 2017-02-16 | 2017-05-10 | 中国建筑设计院有限公司 | Steel pipe column and reinforced concrete column reinforced beam switching node and building comprising same |
| CN113374083A (en) * | 2021-05-24 | 2021-09-10 | 哈尔滨工业大学 | Node structure of steel-recycled concrete composite beam and circular steel tube high-strength concrete column and construction method thereof |
| CN115928893A (en) * | 2023-02-06 | 2023-04-07 | 上海核工程研究设计院股份有限公司 | Modular connecting structure and method for penetration piece and concrete wall of nuclear power plant |
-
2012
- 2012-12-25 CN CN201210570490.XA patent/CN103898983A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895197A (en) * | 2015-05-29 | 2015-09-09 | 重庆大学 | Sectional steel concrete column-steel bar concrete beam joint connection method |
| CN106638989A (en) * | 2017-02-16 | 2017-05-10 | 中国建筑设计院有限公司 | Steel pipe column and reinforced concrete column reinforced beam switching node and building comprising same |
| CN113374083A (en) * | 2021-05-24 | 2021-09-10 | 哈尔滨工业大学 | Node structure of steel-recycled concrete composite beam and circular steel tube high-strength concrete column and construction method thereof |
| CN115928893A (en) * | 2023-02-06 | 2023-04-07 | 上海核工程研究设计院股份有限公司 | Modular connecting structure and method for penetration piece and concrete wall of nuclear power plant |
| CN115928893B (en) * | 2023-02-06 | 2024-01-12 | 上海核工程研究设计院股份有限公司 | Modularized connecting structure and method for nuclear power plant penetrating piece and concrete wall |
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Application publication date: 20140702 |