CN103255852A - Part-filling assembling lapping buckling-proof support - Google Patents
Part-filling assembling lapping buckling-proof support Download PDFInfo
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- CN103255852A CN103255852A CN2013102170178A CN201310217017A CN103255852A CN 103255852 A CN103255852 A CN 103255852A CN 2013102170178 A CN2013102170178 A CN 2013102170178A CN 201310217017 A CN201310217017 A CN 201310217017A CN 103255852 A CN103255852 A CN 103255852A
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Abstract
The invention provides a part-filling assembling lapping buckling-proof support. The part-filling assembling lapping buckling-proof support can greatly consume earthquake input energy, reduces damage on a structure by an earthquake, adopts a modularized installation mode, and reduces positioning difficulty of field installation. The support and pitch points are connected in a lap fillet weld mode, and connection ductility is improved. A plurality of connecting plates are used for connecting hollow steel tubes and concrete filled steel tubes to be a whole, wherein the hollow steel tubes provide whole flexural rigidity. Self-weight of the support is reduced, and material utilization ratio is improved. The hollow steel tubes can be recycled after the earthquake. The part-filling assembling lapping buckling-proof support has the advantages of being low in machining cost, light in self-weight, good in economic benefit, convenient to construct, and capable of partly recycled after the earthquake. The part-filling assembling lapping buckling-proof support at least comprises a pair of L-shaped energy dissipation steel cores, concrete filled steel tube units restraining the L-shaped energy dissipation steel cores respectively, a pair of hollow square steel tubes, a plurality of sleeve connecting plates and isolation materials between the energy dissipation steel cores and the restraining units.
Description
(1) technical field
The present invention relates to building structure aseismatic prevention technique field, belong to structural damping Passive Control category, being specifically related to a kind of only local anti-flexing of four pipe assemblings of filling constraint supports, it can be used for resisting in the building structure horizontal earthquake action, improve structural seismic performance, and it is lighter to conduct oneself with dignity, can adopt the mode of on-the-spot splicing to install, the peripheral constraint element of part also can fill repeated use, cost is reduced greatly, and the overlapping mode envoy spotweld quality that adopts is greatly improved, and has improved welding quality, safety and the construction convenience of node.
(2) background technology
China is in earthquake-prone region, and all earthquake disaster can take place every year, and it has brought grave danger for people's the security of the lives and property.Even if building structure is not collapsed in violent earthquake, also very macrolesion can take place, the normal use after the influence shake.Viewpoint from energy balance, cause the mechanism of structural earthquake destruction to be, earthquake input energy consumes by the plasticity power consumption of member, and damage has also correspondingly taken place structure simultaneously, if the energy dissipation capacity of structure is not enough to consume earthquake input energy, the structure destruction that will collapse then.It is a kind of antidetonation new technology that anti-flexing supports, and it is installed on the original structure, can be used as additional power consumption member, enters plastic state prior to main structure body, dissipation earthquake input energy, thus protected agent structure, can be described as structural seismic " fuse ".
Operating principle and stressed mechanism that anti-flexing supports are very clear and definite, namely by peripheral constraint element constraint axially loaded steel member, guarantee that whole unstable failure and local buckling failure do not take place for it when pressurized, axle power member will show the good mechanical property of tension and compression symmetry in earthquake so, and surrender a large amount of dissipation earthquakes by this tension and compression and import energy, it is a kind of of metal energy-consumption shock-absorption device.
Anti-flexing supports and mainly is divided into two types: (1) is that the anti-flexing of tied mechanism supports with the concrete filled steel tube, and this kind support is by concrete filled steel tube constraint power consumption core; (2) the buckling-restrained support of clean steel type, this kind support is by the effect of contraction of realizations such as the steel bushing of putting more energy into to the power consumption unit.
At present, there are the following problems: (1) node connectivity problem in anti-flexing support: adopt bolt connection or butt weld ways of connecting will prevent that the flexing support links to each other with structure usually, bolt connects pair cross-section and weakens bigger, and dispose 16 junction plates, be difficult for accurately location, construction precision is had relatively high expectations, and bolt ease of connection generation sliding phenomenon, be unfavorable for supporting the performance of power consumption effect; Do not have cross section weakening though butt weld connects, but its weld defect is inevitable, because butt weld rigidity is bigger, welding contraction distortion will produce big welding residual stress, extremely should produce brittle fracture under the impact load of earthquake, influence the safety of structure; (2) support still has bigger optimization room for improvement: the clean steel type supports owing to structure reason binding effect is poor than the support of steel tube concrete soil type usually at present, but concrete filled steel tube filled-type support deadweight is heavier again, and the production and processing program is more, and the cycle is longer; (3) it is higher that alternative costs are repaired in the shake back: anti-flexing supports the shake back at present needs all to change usually, but in fact support the zone that takes place to destroy and mostly be the power consumption core, peripheral constraint element can reuse, but present anti-flexing support is not easily-disassembled, causes a large amount of wastes; (4) the construction location is comparatively difficult: anti-flexing supports construction precision is had relatively high expectations at present, and the link position of supporting base end portion and node and the restriction of the error in length of support are all very strict.
The present invention has taken all factors into consideration above-mentioned factor, according to the basic mechanical principle, adopt local construction measure of filling the quadruplet pipe, utilized concrete to fill binding effect advantage preferably, utilize two hollow steel sleeve pipes that support monolithic stability bearing capacity is provided simultaneously, reduced the deadweight of supporting to greatest extent; Adopt double L-shaped power consumption core, make support node to adopt the connected mode of being close to fillet weld with node cross template, butt weld is converted to lap weld, improved the ductility that connects; And support construction and adopt the mode that breaks the whole up into parts, site operation is carried out in the segmentation assembling, two unit that contain the core that consumes energy can be connected construction earlier with node, hollow steel pipe can be adopted the mode of fill plate to connect into integral body subsequently, have greatly promoted the flexibility of construction; Shake the recyclable recycling of latter two hollow steel pipe, reduced rehabilitation cost.
(3) summary of the invention
The object of the invention is to provide a kind of local anti-flexing of assembling overlap joint of filling to support, and it adopts two concrete filled steel tube assemblies to retrain pair of L type power consumption steel core respectively; Adopt some junction plates will provide the hollow steel pipe of whole bending rigidity and concrete filled steel tube to be connected to an integral body, reduced and supported deadweight, improved stock utilization; Adopt lap fillet weld will support with node and link to each other, improved connection ductility; The form of construction work that adopts on-the-spot segmentation to connect has reduced construction location and installation difficulty; And hollow steel sleeve pipe position can be recycled after shake.
Embodiment of the present invention is: which comprises at least (1) pair of L type power consumption steel core, (2) retrain this respectively to the concrete filled steel tube unit of power consumption core; (3) a pair of hollow square steel pipe; (4) some sleeve junction plates; (5) isolated material between power consumption steel core and the constraint element.
The present invention also comprises following technical characterictic:
[1] described pair of L type power consumption steel core (1), for end cross-sectional is big, the member that the cross section, middle part weakens;
[2] described pair of L type power consumption steel core (1) be positioned over concrete filled steel tube sleeve pipe (2) inside respectively, and two ends passes (2);
[3] described pair of L type power consumption steel core (1) two ends node region is connected with the form of gusset plate employing lap fillet weld;
[4] described a pair of concrete filled steel tube sleeve pipe (2) adopts some sleeve junction plates (4) to be connected with fillet weld with a pair of hollow square steel pipe (3).
[5] the described a pair of firm core of power consumption (1) that is positioned over concrete filled steel tube inside is connected to upper and lower two bights of node;
[6] described a pair of square steel pipe (3) is arranged in the gap location of a pair of concrete filled steel tube sleeve pipe (2) respectively.
Beneficial effect of the present invention is: can be structure before the power consumption core surrender of the present invention bigger anti-side rigidity and supporting capacity is provided, its effect is supported with ordinary steel, but because the present invention whole unstable failure can not take place, material use efficient is higher; The present invention's a large amount of earthquakes input energy that can dissipate after the core surrender that consume energy for structure provides additional damping, are a kind of metal dampers of function admirable; The present invention is that the anti-flexing of partially filled type supports, and it is a lot of that stock utilization is improved, and deadweight reduces greatly; Adopt double L-shaped power consumption core, make support node to adopt the connected mode of being close to fillet weld with node cross template, butt weld is converted to lap weld, improved the ductility that connects; Support construction and adopt the mode that breaks the whole up into parts, site operation is carried out in the segmentation assembling, has greatly promoted the flexibility of construction and to the requirement of installation accuracy; Shake the recyclable recycling of latter two hollow steel pipe, reduced rehabilitation cost.
(4) description of drawings
Fig. 1 is each member assembling diagrammatic elevational view of the present invention
Fig. 2 is vertical view of the present invention (1-1)
Fig. 3 is cross-sectional view of the present invention (2-2)
Fig. 4 is cross-sectional view of the present invention (3-3)
Fig. 5 is cross-sectional view of the present invention (4-4)
Fig. 6 is the present invention's assembly assembly unit schematic diagram
Fig. 7 is the arrangement schematic diagram of patent of the present invention in building structure
(5) specific embodiment
Referring to figs. 1 through Fig. 7, the outward appearance of apparatus of the present invention and structure requirement as can be known.
The present invention implements according to the following steps:
(1) determines this Unit Installation position and quantity, it is arranged in the weak location of structural seismic as far as possible.
(2) according to the structural analysis design, determine that the surrender bearing capacity of this device, rigidity are connected parameters such as power with node.
(3) according to design parameters, carry out design and the processing of apparatus of the present invention in conjunction with the concrete construction measure of this device.
(4) apparatus of the present invention and the building structure main body mode by lap fillet weld is connected instantiation such as Fig. 3 and shown in Figure 7 with the crisscross joint plate.
Concrete construction measure and the embodiment of apparatus of the present invention are:
(1) according to building with analyze designing requirement, determine the apparent size of this device, comprise length, highly, parameter such as width, be connected with agent structure with convenient;
(2) according to surrender bearing capacity and yield displacement requirement, select L type power consumption core (1) size;
(3) determine thickness and the size of outer sleeve according to supporting surrender bearing capacity and length, make it satisfy the monolithic stability requirement;
(4) each assembling parts of the present invention is carried out machining;
(5) L font power consumption central layer (1) is placed steel bushing (2) inside, and fluid concrete, treat that concrete curing finishes;
(6) with on the crisscross joint plate of formed two the constraint power consumption members of step (5) by lap fillet welding seam welding and structure;
(7) two hollow steel pipes are connected by some sleeve junction plates with concrete filled steel tube, form an integral body;
When (8) repair the shake back, the sleeve junction plate can be cut recycling hollow square steel pipe.
Claims (7)
1. the local anti-flexing of assembling overlap joint of filling supports, and it is characterized in which comprises at least: (1) pair of L type power consumption steel core, (2) retrain this respectively to a pair of concrete filled steel tube of power consumption core; (3) a pair of hollow square steel pipe; (4) some sleeve junction plates; (5) isolated material between power consumption steel core and the constraint element.
2. support according to the described local anti-flexing of assembling overlap joint of filling of claim 1, pair of L type power consumption steel core (1), for end cross-sectional is big, the member that the cross section, middle part weakens.
3. support according to the described local anti-flexing of assembling overlap joint of filling of claim 1, pair of L type power consumption steel core (1) two ends node region adopts the form of lap fillet weld to be connected with gusset plate.
4. support according to the described local anti-flexing of assembling overlap joint of filling of claim 1, a pair of concrete filled steel tube sleeve pipe (2) adopts some sleeve junction plates (4) to be connected with fillet weld with a pair of hollow square steel pipe (3).
5. support according to the described local anti-flexing of assembling overlap joint of filling of claim 1, a pair of firm core of power consumption (1) that is positioned over concrete filled steel tube inside is connected to upper and lower two bights of node.
6. support according to the described local anti-flexing of assembling overlap joint of filling of claim 1, described a pair of square steel pipe (3) is arranged in the bight of a pair of concrete filled steel tube sleeve pipe (2) respectively.
7. support according to the described local anti-flexing of assembling overlap joint of filling of claim 1, when repair described a pair of square steel pipe (3) shake back, the sleeve junction plate can be cut recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102170178A CN103255852A (en) | 2013-06-04 | 2013-06-04 | Part-filling assembling lapping buckling-proof support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102170178A CN103255852A (en) | 2013-06-04 | 2013-06-04 | Part-filling assembling lapping buckling-proof support |
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| CN103255852A true CN103255852A (en) | 2013-08-21 |
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| CN2013102170178A Pending CN103255852A (en) | 2013-06-04 | 2013-06-04 | Part-filling assembling lapping buckling-proof support |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711219A (en) * | 2013-12-30 | 2014-04-09 | 北京工业大学 | Bending-prevention limiting energy-dissipation supporting component with steel pipe with baffles inside and cross-shaped inward contracting type variable-section steel core |
| CN107401311A (en) * | 2016-05-19 | 2017-11-28 | 云南国濒科技有限公司 | Prefabricated energy dissipation brace module and application and preparation method |
Citations (8)
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| TW459837U (en) * | 2001-03-26 | 2001-10-11 | Tsai Ke Chiuan | Lapped assembled ductile support of buckling bonding |
| CN2764840Y (en) * | 2004-10-29 | 2006-03-15 | 任德威 | Shock proof restrained energy dissipating diagonal supporting member |
| US20100005737A1 (en) * | 2008-07-09 | 2010-01-14 | National Applied Research Laboratories | Buckling restrained brace |
| CN201459947U (en) * | 2009-05-27 | 2010-05-12 | 清华大学 | Fiber reinforced composite material-restraining bending and energy consumption-preventing steel support |
| TW201037133A (en) * | 2009-04-01 | 2010-10-16 | chong-xing Cai | Simple type energy dissipation brace device |
| CN101982624A (en) * | 2010-10-15 | 2011-03-02 | 清华大学 | Buckling-resistant supporting element bound by four square pipes |
| CN202347682U (en) * | 2011-07-29 | 2012-07-25 | 青岛科而泰环境控制技术有限公司 | Buckling-restrained brace |
| CN203514559U (en) * | 2013-06-04 | 2014-04-02 | 北京听风庐文化发展有限公司 | Anti-buckling overlapping-assembled support with local filling |
-
2013
- 2013-06-04 CN CN2013102170178A patent/CN103255852A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW459837U (en) * | 2001-03-26 | 2001-10-11 | Tsai Ke Chiuan | Lapped assembled ductile support of buckling bonding |
| CN2764840Y (en) * | 2004-10-29 | 2006-03-15 | 任德威 | Shock proof restrained energy dissipating diagonal supporting member |
| US20100005737A1 (en) * | 2008-07-09 | 2010-01-14 | National Applied Research Laboratories | Buckling restrained brace |
| TW201037133A (en) * | 2009-04-01 | 2010-10-16 | chong-xing Cai | Simple type energy dissipation brace device |
| CN201459947U (en) * | 2009-05-27 | 2010-05-12 | 清华大学 | Fiber reinforced composite material-restraining bending and energy consumption-preventing steel support |
| CN101982624A (en) * | 2010-10-15 | 2011-03-02 | 清华大学 | Buckling-resistant supporting element bound by four square pipes |
| CN202347682U (en) * | 2011-07-29 | 2012-07-25 | 青岛科而泰环境控制技术有限公司 | Buckling-restrained brace |
| CN203514559U (en) * | 2013-06-04 | 2014-04-02 | 北京听风庐文化发展有限公司 | Anti-buckling overlapping-assembled support with local filling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711219A (en) * | 2013-12-30 | 2014-04-09 | 北京工业大学 | Bending-prevention limiting energy-dissipation supporting component with steel pipe with baffles inside and cross-shaped inward contracting type variable-section steel core |
| CN103711219B (en) * | 2013-12-30 | 2015-10-28 | 北京工业大学 | The anti-buckling spacing energy-consumption supporting member of baffled formula steel pipe cross internal withdraw type variable-cross-sectisteel steel core in a kind of |
| CN107401311A (en) * | 2016-05-19 | 2017-11-28 | 云南国濒科技有限公司 | Prefabricated energy dissipation brace module and application and preparation method |
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Application publication date: 20130821 |