CN102011433A - Buckling restrained brace steel pipe high-strength concrete frame node - Google Patents
Buckling restrained brace steel pipe high-strength concrete frame node Download PDFInfo
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- CN102011433A CN102011433A CN 201010557875 CN201010557875A CN102011433A CN 102011433 A CN102011433 A CN 102011433A CN 201010557875 CN201010557875 CN 201010557875 CN 201010557875 A CN201010557875 A CN 201010557875A CN 102011433 A CN102011433 A CN 102011433A
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Abstract
The invention discloses a buckling restrained brace (BRB) steel pipe high-strength concrete frame node and relates to a building member. The node consists of a steel beam, a steel pipe high-strength concrete column, a base and a BRB node plate, and is characterized in that: the BRB steel pipe high-strength concrete frame node is in a BRB and beam column form, namely a circular steel pipe concrete column node, and the node consists of a circular steel pipe concrete column, the steel beam and the BRB node plate. By adopting the BRB, the brace sectional dimension can be reduced, the steel consumption is reduced, simultaneously the brace can prevent other members from being damaged, and after a major earthquake, the damaged brace can be conveniently replaced; in construction, the BRB is connected to the node plate through a bolt or a hinge, field welding and detection are avoided, and the BRB is convenient to mount and economic.
Description
Technical field
The present invention relates to a kind of a kind of building unit that relates to, particularly relate to a kind of buckling-restrained supporting steel pipe high-strength concrete frame joint.
Background technology
Steel pipe high strength concrete column reinforcing utilizes steel pipe and two kinds of materials of high-strength concrete at loading process compound action each other, give full play to the advantage of these two kinds of materials, concrete plasticity and toughness are greatly improved, and avoid or delay steel pipe generation cripling, make steel core concrete column total bearing capacity height, plasticity and good toughness.In the highrise building of earthquake zone, use steel pipe high strength concrete column reinforcing at present, can solve the brittle fracture problem of ordinary reinforced concrete post, thereby relax the ratio of axial compressive force to axial compressive ultimate capacity of section restriction, utilize the constraint of steel pipe simultaneously to core concrete, increase substantially concrete intensity, reduce the sectional dimension of post, lower the cost of engineering.China adopts the highrise building of high strength concrete filled steel tube structure to emerge in an endless stream, and adopting first highrise building of high strength concrete filled steel tube is the good world, Guangzhou square mansion, and 33 layers on the ground, underground 3 layers, ground height overall 116.3m.Below 2 layers, adopt the steel pipe high strength concrete column reinforcing of C60 level on the ground, the main building column diameter is 1100-1200mm, and thickness of steel pipe is 20mm or 10mm, and nineteen ninety-five builds up.Reduce much to have enlarged usage space because the pillar cross section is compared with steel concrete, construction simultaneously is also convenient, thereby has obtained favorable economic benefit.After this project, adopt the highrise building of high strength concrete filled steel tube structure to have: Tianjin Tonight News Building, Chongqing World Trade Centre, Guangzhou new China mansion or the like.What deserves to be mentioned is, the match lattice square in Shenzhen, it is the high building that adopts the encased structures system in the world, and structure height is 300m nearly, and it indicates that also China is in the leading level in the world about the research and the application of encased structures.But the present connected node of steel core concrete column and normal reinforced concrete beam plate or prestress concrete girder slab still is left to be desired and improves.Its main joint form has various ways such as the ring type of reinforcement node, vertically-displacable node, ring beam joint.
Buckling-restrained support (Buckling-Restrained Braces, abbreviation BRB) originates from Japan, beginning in 1976, the Japanology person supports BRB and begins to study, the BRB that the eighties in 20th century, the nineties add steel sleeve to this core especially supports and to have done multinomial research, after the nineteen ninety-five Kobe earthquake, buckling-restrained support system adopts in a large number in Japan, and engineering relates to buildings such as stadiums, office premises; 1981, India also carried out correlative study; After the northern mountain range earthquake in 1994, the U.S. also begins to accept this buckling-restrained support system, and this has been done multinomial research, and engineering relates to engineerings such as steel work, concrete structure reinforcement transformation; Domestic after Taiwan Ji Ji earthquake in 1999, the research of BRB and application beginning are carried out in a large number in Taiwan, and Taiwan has become use BRB one of area the most widely now, and engineering relates to new construction and oneself has the seismic hardening improvement project of engineering; The area, continent is put this BRB that begins one's study a little later than Taiwan and is supported, it is first highrise building that adopts BRB to design in continent that the prestige mansion is contained in Beijing, the steel building that general international Times Square, Beijing is high 103 m, consider to be located in 8 and spend the district that sets up defences, adopted ductility framed-tube structure preferably in the design, the anti-flexing support that eccentric steel supports and uses first.Western dynamo-electric scientific and technological commercial center, Gu Bei wealth center, Shanghai high-rise steel structure, Yintai Center, Beijing mansion high-rise steel structure have also been used buckling-restrained support, and carried out relevant sampling Detection and experimental study, and carried out the response analysis of elastoplasticity earthquake time-histories.But the area, continent has only Shanghai Tongji University that BRB is supported with patent right at present.Therefore, the application that BRB is supported is had great potentialities and can be dug.At present, the research of supporting about BRB has obtained abundant achievement in research both at home and abroad, and has obtained a large amount of application in actual engineering, but to the research of BRB supporting steel pipe high-strength concrete frame joint, domestic and international research also is not very ripe.
Summary of the invention
The object of the present invention is to provide a kind of buckling-restrained supporting steel pipe high-strength concrete frame joint.Constitute by girder steel, steel pipe high strength concrete column reinforcing (circle, side), basis and BRB support node plate, utilize BRB to support, improve the anti-seismic performance of support frame structure as the power consumption member.
The objective of the invention is to be achieved through the following technical solutions:
Buckling-restrained supporting steel pipe high-strength concrete frame joint, constitute by girder steel, steel pipe high strength concrete column reinforcing, basis and BRB support node plate, its BRB supporting steel pipe high-strength concrete frame joint be BRB support with beam column be the concrete-filled circular steel tube column joint form, the node of forming by concrete-filled circular steel tube column, girder steel and BRB support node plate.
Described buckling-restrained supporting steel pipe high-strength concrete concrete frame joint, its BRB supporting steel pipe high-strength concrete frame joint be BRB support with beam column be the concrete-filled steel square tubular column joint form, the node of forming by concrete-filled steel square tubular column, girder steel and BRB support node plate.
Described buckling-restrained supporting steel pipe high-strength concrete concrete frame joint, its BRB supporting steel pipe high-strength concrete frame joint are that BRB supports and the girder steel node, the node of being made up of girder steel and BRB support node plate.
Described buckling-restrained supporting steel pipe high-strength concrete concrete frame joint, its BRB supporting steel pipe high-strength concrete frame joint are that BRB supports and base node, the node of being made up of steel core concrete column, basis and BRB support node plate.
Advantage of the present invention and effect are:
The present invention be directed to improving constantly along with China's steel output, quality, the application of steel-concrete combined structure in high level, super highrise building more and more widely, especially adopt steel core concrete column to emerge in an endless stream as the actual engineering of the combining structure of power consumption member, and BRB supporting steel pipe High Strength Concrete Structures is compared the characteristics with self with ordinary reinforced concrete structure, pure frame structure as vertical supporting member, steel support.This is the inexorable trend of antidetonation field development.BRB supporting steel pipe high-strength concrete frame joint performance is studied, and for the design of support frame hierarchy node provides theoretical foundation, BRB is supported can be applied to the antidetonation field fully, is applied to various newly-built structures and aseismatic reinforcement engineering.
Because BRB supports can tension and pressurized surrender, so section area little than common support can reduce steel using amount; simultaneously, supporting member can protect other members to exempt from destruction, and after the big shake; the support of damage can be convenient for changing, thereby most structural repair and reinforcing expense can be saved.
RB receives gusset plate by bolt or hinge, avoids field Welding and detection, and is easy for installation and economical.
Description of drawings
Fig. 1 (a)-Fig. 1 (c) supports and beam column (concrete-filled circular steel tube column) node schematic diagram for BRB;
Fig. 2 (a)-Fig. 2 (c) supports and beam column (concrete-filled steel square tubular column) node schematic diagram for BRB;
Fig. 3 (a)-Fig. 3 (b) supports and girder steel node schematic diagram for BRB;
Fig. 4 (a)-Fig. 4 (c) supports and the base node schematic diagram for BRB.
The specific embodiment
The present invention is made of girder steel, steel pipe high strength concrete column reinforcing (circle, side), basis and BRB support node plate, and it utilizes BRB to support as the power consumption member, improves the anti-seismic performance of support frame structure.
The present invention studies several forms of the node that BRB support and beam column, girder steel, basis constitute.That is: utilize BRB to support, improve the anti-seismic performance of support frame structure as the power consumption member; The joint form that is connected with gusset plate in steel pipe high strength concrete column reinforcing (circle, side), girder steel; The joint form that girder steel is connected with BRB support node plate; The joint form that steel pipe high strength concrete column reinforcing, basis and BRB support node plate are connected.
Buckling-restrained support is that a kind of power consumption of new model is supported.The difference of it and common support is: have buckling problem during common support pressurized, reciprocal load during big the shake very easily causes support itself and inefficacy that is connected or destruction, support the hysteretic energy ability variation after the flexing simultaneously, be difficult to earthquake energy effectively, and buckling-restrained support is because the effect of contraction of peripheral constraint element, core member can reach the total cross-section surrender when pressurized, reach the purpose of power consumption by the surrender hysteresis.
Shown in Fig. 1 (a)-Fig. 1 (c), this BRB supporting steel pipe high-strength concrete frame joint that the present invention provides is that BRB supports and beam column (concrete-filled circular steel tube column) joint form the node that he is made up of concrete-filled circular steel tube column, girder steel and BRB support node plate.
Shown in Fig. 2 (a)-Fig. 2 (c), this BRB supporting steel pipe high-strength concrete frame joint that the present invention provides is that BRB supports and beam column (concrete-filled steel square tubular column) joint form the node that he is made up of concrete-filled steel square tubular column, girder steel and BRB support node plate.
As Fig. 3 (a)-shown in Figure 3, this BRB supporting steel pipe high-strength concrete frame joint that the present invention provides is that BRB supports and the girder steel node node that he is made up of girder steel and BRB support node plate.
Shown in Fig. 4 (a)-Fig. 4 (c), this BRB supporting steel pipe high-strength concrete frame joint that the present invention provides is that BRB supports and base node the node that he is made up of steel core concrete column, basis and BRB support node plate.
Claims (4)
1. buckling-restrained supporting steel pipe high-strength concrete frame joint, constitute by girder steel, steel pipe high strength concrete column reinforcing, basis and BRB support node plate, it is characterized in that BRB supporting steel pipe high-strength concrete frame joint be BRB support with beam column be the concrete-filled circular steel tube column joint form, the node of forming by concrete-filled circular steel tube column, girder steel and BRB support node plate.
2. buckling-restrained supporting steel pipe high-strength concrete concrete frame joint according to claim 1, it is characterized in that BRB supporting steel pipe high-strength concrete frame joint be BRB support with beam column be the concrete-filled steel square tubular column joint form, the node of forming by concrete-filled steel square tubular column, girder steel and BRB support node plate.
3. buckling-restrained supporting steel pipe high-strength concrete concrete frame joint according to claim 1 is characterized in that BRB supporting steel pipe high-strength concrete frame joint is that BRB supports and the girder steel node, the node of being made up of girder steel and BRB support node plate.
4. buckling-restrained supporting steel pipe high-strength concrete concrete frame joint according to claim 1, it is characterized in that BRB supporting steel pipe high-strength concrete frame joint is that BRB supports and base node, the node of forming by steel core concrete column, basis and BRB support node plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010557875 CN102011433A (en) | 2010-11-24 | 2010-11-24 | Buckling restrained brace steel pipe high-strength concrete frame node |
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| CN 201010557875 CN102011433A (en) | 2010-11-24 | 2010-11-24 | Buckling restrained brace steel pipe high-strength concrete frame node |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912884A (en) * | 2012-11-07 | 2013-02-06 | 沈阳建筑大学 | Sleeve confined buckling-restrained brace |
| CN104563303A (en) * | 2015-01-13 | 2015-04-29 | 沈阳建筑大学 | Connecting joint for buckling-restrained brace and concrete frame beam |
| CN105089171A (en) * | 2015-04-17 | 2015-11-25 | 华侨大学 | Intelligent reinforced concrete frame structure with self-adaptive energy-consuming mechanism |
| CN106988552A (en) * | 2017-05-19 | 2017-07-28 | 福州大学 | Existing reinforced concrete structure reinforcing construction and its reinforcement means based on BRB |
| CN108894321A (en) * | 2018-07-24 | 2018-11-27 | 沈阳建筑大学 | Quadrate steel pipe column-K shape bracing members the connecting node and construction method of T-steel connection |
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
Citations (7)
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|---|---|---|---|---|
| JPH07324379A (en) * | 1994-06-01 | 1995-12-12 | Takenaka Komuten Co Ltd | Unbonded steel brace stiffened with reinforced concrete |
| JP2002088910A (en) * | 2000-09-12 | 2002-03-27 | Kawasaki Steel Corp | Buckling-restrained brace material |
| US20030205008A1 (en) * | 2000-09-12 | 2003-11-06 | Sridhara Benne Narasimha Murthy | Sleeved bracing useful in the construction of earthquake resistant structures |
| CN101476354A (en) * | 2009-01-16 | 2009-07-08 | 北京工业大学 | Frequency-modulation mass anti-flection support |
| US20100005737A1 (en) * | 2008-07-09 | 2010-01-14 | National Applied Research Laboratories | Buckling restrained brace |
| CN101672071A (en) * | 2009-09-17 | 2010-03-17 | 同济大学 | Vertical reinforced concrete component-connection node of buckling-restrained brace |
| CN201437613U (en) * | 2010-01-07 | 2010-04-14 | 北京京诚华宇建筑设计研究院有限公司 | Steel beam integral feed-through type concrete-filled tubular column and steel beam connecting node |
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2010
- 2010-11-24 CN CN 201010557875 patent/CN102011433A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07324379A (en) * | 1994-06-01 | 1995-12-12 | Takenaka Komuten Co Ltd | Unbonded steel brace stiffened with reinforced concrete |
| JP2002088910A (en) * | 2000-09-12 | 2002-03-27 | Kawasaki Steel Corp | Buckling-restrained brace material |
| US20030205008A1 (en) * | 2000-09-12 | 2003-11-06 | Sridhara Benne Narasimha Murthy | Sleeved bracing useful in the construction of earthquake resistant structures |
| US20100005737A1 (en) * | 2008-07-09 | 2010-01-14 | National Applied Research Laboratories | Buckling restrained brace |
| CN101476354A (en) * | 2009-01-16 | 2009-07-08 | 北京工业大学 | Frequency-modulation mass anti-flection support |
| CN101672071A (en) * | 2009-09-17 | 2010-03-17 | 同济大学 | Vertical reinforced concrete component-connection node of buckling-restrained brace |
| CN201437613U (en) * | 2010-01-07 | 2010-04-14 | 北京京诚华宇建筑设计研究院有限公司 | Steel beam integral feed-through type concrete-filled tubular column and steel beam connecting node |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912884A (en) * | 2012-11-07 | 2013-02-06 | 沈阳建筑大学 | Sleeve confined buckling-restrained brace |
| CN104563303A (en) * | 2015-01-13 | 2015-04-29 | 沈阳建筑大学 | Connecting joint for buckling-restrained brace and concrete frame beam |
| CN105089171A (en) * | 2015-04-17 | 2015-11-25 | 华侨大学 | Intelligent reinforced concrete frame structure with self-adaptive energy-consuming mechanism |
| CN106988552A (en) * | 2017-05-19 | 2017-07-28 | 福州大学 | Existing reinforced concrete structure reinforcing construction and its reinforcement means based on BRB |
| CN108894321A (en) * | 2018-07-24 | 2018-11-27 | 沈阳建筑大学 | Quadrate steel pipe column-K shape bracing members the connecting node and construction method of T-steel connection |
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
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Application publication date: 20110413 |