CN105507441A - Fiber-reinforced composite material-wood-steel combined buckling-restrained brace - Google Patents
Fiber-reinforced composite material-wood-steel combined buckling-restrained brace Download PDFInfo
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- CN105507441A CN105507441A CN201510845000.6A CN201510845000A CN105507441A CN 105507441 A CN105507441 A CN 105507441A CN 201510845000 A CN201510845000 A CN 201510845000A CN 105507441 A CN105507441 A CN 105507441A
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- inner core
- wood
- fibre reinforced
- reinforced composites
- steel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Abstract
The invention discloses a fiber-reinforced composite material-wood-steel combined buckling-restrained brace. The fiber-reinforced composite material-wood-steel combined buckling-restrained brace comprises an inner core and an outer combined restraint sleeving the inner core, wherein the outer combined restraint comprises cushion blocks, a plurality of protecting plates, wood blocks and a fiber-reinforced composite material, the protecting plates are arranged on the periphery of the inner core longitudinally, each two adjacent protecting plates are connected through the cushion block arranged at the outer ends of the cushion blocks so as to form an enclosed structure accommodating the inner core, the wood blocks are arranged on the outer surfaces of the protecting plates connectively, and the fiber-reinforced composite material is wound on the integral outside of the cushion blocks, the protecting plates and the wood blocks longitudinally. The fiber-reinforced composite material-wood-steel combined buckling-restrained brace has the advantages of low self weight, short manufacturing period, convenience in transportation, simplicity in mounting and replacement and the like while bearing and energy-dissipating capabilities are guaranteed, can be applied to multi-story buildings and high-rise buildings with concrete structures and steel structures and can solve the problem of safety of building structures under the action of earthquakes.
Description
Technical field
The invention belongs to structural engineering technical field, relate to a kind of buckling-restrained energy-dissipation.
Background technology
Buckling-restrained energy-dissipation has common support concurrently and the comparatively high that consumes energy, and effectively overcomes conventional steel brace and the defects such as complete buckling, shock resistance is not enough easily occur, be used widely in earthquake-proof construction.At present, from the material angle of outer confining part, buckling-restrained energy-dissipation is classified, be mainly divided into concrete constraining anti-buckling energy-consumption to support and all steel buckling-restrained energy-dissipation two class.Concrete constraining anti-buckling energy-consumption support have that deadweight is large, fabrication cycle long, transport and install the shortcomings such as difficulty; All steel buckling-restrained energy-dissipation to a certain degree overcomes the above-mentioned shortcoming that concrete constraining anti-buckling energy-consumption supports, but be the entirety and the cripling that better suppress inner core, outer constraint steel plate still must have large thickness, therefore from great, transport and install the problems such as difficulty and still exist.Meanwhile, above-mentioned two class buckling-restrained energy-dissipations, by the problem of outer constraint corrosion durable difference, support can to a certain degree solve the problem with reinforced-fiber composite constraining anti-buckling energy-consumptions.
The reinforced-fiber composite constraining anti-buckling energy-consumption of current research and development is supported with China Patent No. CN102767249A and CN101575915B.CN102767249A discloses the patent of invention that a kind of name is called " outer constraining anti-buckling energy-consumption supporting member of fibre reinforced concrete and preparation method thereof ", its outer constraint adopts concrete outer wrapping fiber reinforcing material to make, the corrosion that conventional steel retrains can be effectively prevent outward, there is good durability, but it is from great, fabrication cycle is long, and the problem that transport, installation and displacement thereof are difficult still exists, CN101575915B discloses the utility model patent that a kind of name is called " reinforced-fiber composite constraining anti-buckling energy-consumption support ", it adopts fibre reinforced composites as constraint system, mortar, light weight concrete construction, thin bamboo strips used for weaving, timber or foam etc. are as packing material, it has lightweight, construction molding is convenient, the advantage such as corrosion-resistant, be simultaneously in the paper of " experimental study of FRP Fast Anti flexion axis compressed steel Component " at " engineering mechanics " magazine volume the 6th phase exercise question June the 29th in 2012, can find out from the curve of result of the test with thin bamboo strips used for weaving, when timber etc. are as packing material, after energy dissipation brace reaches the limit of load, bearing capacity declines rapidly, its energy dissipation capacity is limited.
Summary of the invention
technical problem:the invention provides a kind of short from heavy and light, fabrication cycle, be convenient to transport, install, displacement, the fibre reinforced composites-wood-steel combination constraining anti-buckling energy-consumption that improve energy dissipation capacity supports.
technical scheme:fibre reinforced composites-wood of the present invention-steel combination constraining anti-buckling energy-consumption supports, comprise inner core to retrain outward with the combination being enclosed within described inner core outside, described combination retrains outward and is made up of cushion block, protected apron, wooden unit, fibre reinforced composites, multiple protected apron is longitudinally arranged on inner core periphery, cushion block by being arranged on outboard end between two adjacent protected aprons connects, and forms the enclosed construction holding inner core; The external surface connection of described protected apron arranges wooden unit, and described fibre reinforced composites are longitudinally wrapped in the outside of cushion block, protected apron and wooden unit entirety; Described inner core, through the enclosed construction of the outer constraint inner side of combination, inner core is provided with and is positioned at combination outer constraint two ends and is constrained in the limited block that longitudinal limited range slides.
Further, in apparatus of the present invention, the cross sectional shape of inner core is cross or in-line.
Further, in apparatus of the present invention, protected apron is angle steel or steel plate.
Further, in apparatus of the present invention, protected apron external surface is provided with shearing resistance bolt.
Further, in apparatus of the present invention, between fibre reinforced composites and cushion block, between protected apron and wooden unit, all apply epoxyn.
beneficial effect:compared to the prior art the present invention, has the following advantages:
The buckling-restrained energy-dissipation of contrast patent of invention CN102767249A using concrete as outer constraint, apparatus of the present invention are wet-less operation in whole processing and making process, and without the need to formwork supporting plate, therefore its cycle made is also shorter;
The buckling-restrained energy-dissipation of contrast patent of invention CN102767249A using concrete as outer constraint, apparatus of the present invention adopt the fibre reinforced composites-wood-steel of lightweight as combination constraint system, impost is light, very little on dead load impact, transport simultaneously, install and replace also very convenient, without the need to crane gear;
Contrast utility model patent CN101575915B adopts fibre reinforced composites as constraint system, with mortar, light weight concrete construction, thin bamboo strips used for weaving, timber or foam etc. are as the buckling-restrained energy-dissipation of packing material, apparatus of the present invention retrain outside between wooden unit and inner core and place protected apron, and connect for overall by arranging cushion block, play skeleton function, facilitate the placement of wooden unit, also parcel fibre reinforced composites are facilitated, simultaneously, the size in gap between protected apron and inner core easily can be controlled by the thickness changing cushion block, the making precision of buckling-restrained energy-dissipation is well controlled,
Contrast utility model patent CN101575915B adopts fibre reinforced composites as constraint system, with mortar, light weight concrete construction, thin bamboo strips used for weaving, timber or foam etc. are as the buckling-restrained energy-dissipation of packing material, through analyzing the experimental phenomena in " experimental study of FRP Fast Anti flexion axis compressed steel Component " paper and result, the main cause that after this support arrives ultimate load, bearing capacity declines rapidly is that in loading process, inner core there occurs cripling, packing material also there occurs local failure simultaneously, mainly packing material and inner core directly contact and caused for these, and apparatus of the present invention retrain outside between wooden unit and inner core and place protected apron, when buckling-restrained energy-dissipation pressurized, inner core generation flexing, the effect of isolation outer constraint wooden unit and inner core is played in the existence of protected apron, inner core does not directly contact in whole loading process with wooden unit, this available protecting wooden unit, give full play to its anti-bending strength, inner core generation cripling is avoided or is delayed in the existence of protected apron simultaneously, and then ensure that buckling-restrained energy-dissipation has good carrying and energy-dissipating property,
Contrast utility model patent CN101575915B adopts fibre reinforced composites as constraint system, using mortar, light weight concrete construction, thin bamboo strips used for weaving, timber or foam etc. as the buckling-restrained energy-dissipation of packing material, fibre reinforced composites, wood and steel connect for overall by arranging the modes such as shearing resistance bolt and epoxyn by apparatus of the present invention, whole outer constraint can be good at co-operation as a whole, there is larger rigidity, effectively can suppress the complete buckling of inner core, and then ensure that buckling-restrained energy-dissipation has good carrying and energy-dissipating property.
Accompanying drawing explanation
Fig. 1 is the overall diagram that buckling-restrained energy-dissipation of the present invention supports;
Fig. 2 is buckling-restrained energy-dissipation plan view of the present invention, and wherein Fig. 2 a is cross inner core, and Fig. 2 b is in-line inner core;
Fig. 3 is the sectional view of buckling-restrained energy-dissipation of the present invention, and wherein Fig. 3 a is cross inner core, and Fig. 3 b is in-line inner core;
In figure: 1-cushion block; 2-protected apron; 3-wooden unit; 4-fibre reinforced composites; 5-inner core; 6-limited block.
Detailed description of the invention
Because I-shaped inner core buckling-restrained energy-dissipation and star section inner core buckling-restrained energy-dissipation detailed description of the invention are similar to, below in conjunction with the embodiment of a star section inner core and Figure of description, the present invention is further illustrated.
See Fig. 1, Fig. 2 (a) and Fig. 3 (a), this buckling-restrained energy-dissipation one embodiment is made up of four cushion blocks, 1, four protected aprons, 2, four wooden units 3, fibre reinforced composites 4, inner core 5 and 8 limited blocks 6, and inner core 5 can adopt steel plate member.Wherein the concrete shape of each part, the connection of correlation and object thereof are as described below.
See Fig. 3 (a), in this embodiment, protected apron 2 is angle steel, the cross section of wooden unit 3 is square through chamfered, and hole is set at the correspondence position of itself and protected apron 2 shearing resistance bolt, the cross sectional shape of inner core 5 is cross, and fibre reinforced composites 4 are carbon cloth.
See Fig. 1, Fig. 2 (a) and Fig. 3 (a), this embodiment is when making, first limited block 6 is welded on inner core 5 two ends assigned address, at lubriation materials such as inner core 5 surface smear silicone oil or aquadags, and four angle steel protected aprons 2 are longitudinally arranged around inner core 5, at outboard end pad block 1 between two adjacent protected aprons 2, adjacent protected apron 2 is connected for enclosed construction with cushion block 1 longitudinally spot welding; Secondly, four protected aprons 2 outer surface welding some shearing resistance bolts and coat epoxyn and to place wooden unit 3 fast at the outer surface of protected apron 2 and compress; Finally, coat epoxyn in the periphery of wooden unit 3 and elongated winding fibre reinforced composites 4, and the other wrapped multiple fibre reinforced composites 4 in position easily destroyed at two ends and middle part etc.
Described, the existence of protected apron 2 directly contacts with wooden unit 3 after inner core 5 can be avoided to be out of shape, and plays the effect of protection wooden unit 3, makes it give full play to its anti-bending strength, and then guarantee is supported with good carrying and energy-dissipating property;
Described, cushion block 1 have the position helping determine protected apron 2, meanwhile, can be easy to control protected apron 2 and inner core 5 gap length by changing the thickness of cushion block 1;
Described, spot welding connects cushion block 1 and protected apron 2 makes the better acting in conjunction of outer constraint for closing entirety, and meanwhile, convenient placement wooden unit 3, is also convenient to wrap up fibre reinforced composites 4;
Described, coat epoxyn and elongated winding fibre reinforced composites 4 at the external surface of wooden unit 3, it is mainly in order to make around inner core 5 four to retrain the better acting in conjunction of subelement;
Described, retrain the other wrapped multiple fibre reinforced composites 4 in position easily destroyed in two ends and middle part etc. outside, it mainly affects its carrying and energy-dissipating property in order to prevent from supporting because local failure occurs in outer constraint;
Described, should, at lubriation materials such as inner core 5 surface smear silicone oil or aquadags, to reduce the friction between inner core 5 and protected apron 2, inner core 5 longitudinally can be stretched, and retrain outward not by axial force.
Above-described embodiment is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention; some improvement and equivalent replacement can also be made; these improve the claims in the present invention and are equal to the technical scheme after replacing, and all fall into protection scope of the present invention.
Claims (5)
1. fibre reinforced composites-wood-steel combination constraining anti-buckling energy-consumption supports, it is characterized in that, the combination that this support comprises inner core (5) and is enclosed within described inner core (5) outside retrains outward, described combination retrains outward and is made up of cushion block (1), protected apron (2), wooden unit (3), fibre reinforced composites (4), multiple protected apron (2) is longitudinally arranged on inner core (5) periphery, cushion block (1) by being arranged on outboard end between two adjacent protected aprons (2) connects, and forms the enclosed construction holding inner core (5); The external surface connection of described protected apron (2) arranges wooden unit (3), and described fibre reinforced composites (4) are longitudinally wrapped in the overall outside of cushion block (1), protected apron (2) and wooden unit (3); Described inner core (5), through the enclosed construction of the outer constraint inner side of combination, inner core (5) is provided with and is positioned at combination outer constraint two ends and is constrained in the limited block (6) that longitudinal limited range slides.
2. fibre reinforced composites-wood as claimed in claim 1-steel combination constraining anti-buckling energy-consumption supports, and it is characterized in that, the cross sectional shape of described inner core (5) is cross or in-line.
3. fibre reinforced composites-wood as claimed in claim 1-steel combination constraining anti-buckling energy-consumption supports, and it is characterized in that, described protected apron (2) is angle steel or steel plate.
4. fibre reinforced composites-the wood as described in claim 1,2 or 3-steel combination constraining anti-buckling energy-consumption supports, and it is characterized in that, described protected apron (2) external surface is provided with shearing resistance bolt.
5. fibre reinforced composites-wood as claimed in claim 1-steel combination constraining anti-buckling energy-consumption supports, it is characterized in that, between described fibre reinforced composites (4) and cushion block (1), between protected apron (2) and wooden unit (3), all apply epoxyn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510845000.6A CN105507441A (en) | 2015-11-27 | 2015-11-27 | Fiber-reinforced composite material-wood-steel combined buckling-restrained brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510845000.6A CN105507441A (en) | 2015-11-27 | 2015-11-27 | Fiber-reinforced composite material-wood-steel combined buckling-restrained brace |
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| CN105507441A true CN105507441A (en) | 2016-04-20 |
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|---|---|---|---|
| CN201510845000.6A Pending CN105507441A (en) | 2015-11-27 | 2015-11-27 | Fiber-reinforced composite material-wood-steel combined buckling-restrained brace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750794A (en) * | 2019-03-13 | 2019-05-14 | 沈阳工业大学 | Steel and wood composite column and combined method |
| CN109826331A (en) * | 2019-02-16 | 2019-05-31 | 北京工业大学 | Graving piece material combined support and the practice in a kind of reinforced arrangement of reinforcement steel pipe of assembled FRP |
| JP2021088824A (en) * | 2019-12-02 | 2021-06-10 | 学校法人神奈川大学 | Buckling restrained building material and method for manufacturing buckling restrained building material |
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| CN103981975A (en) * | 2014-05-12 | 2014-08-13 | 东南大学 | Bamboo-wood-filled buckling restrained support |
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| JP5252971B2 (en) * | 2008-04-02 | 2013-07-31 | 大和ハウス工業株式会社 | Manufacturing method of buckling restrained brace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826331A (en) * | 2019-02-16 | 2019-05-31 | 北京工业大学 | Graving piece material combined support and the practice in a kind of reinforced arrangement of reinforcement steel pipe of assembled FRP |
| CN109826331B (en) * | 2019-02-16 | 2021-03-30 | 北京工业大学 | Assembled FRP (fiber reinforced plastic) reinforced steel pipe inner filling wood combined support and manufacturing method |
| CN109750794A (en) * | 2019-03-13 | 2019-05-14 | 沈阳工业大学 | Steel and wood composite column and combined method |
| JP2021088824A (en) * | 2019-12-02 | 2021-06-10 | 学校法人神奈川大学 | Buckling restrained building material and method for manufacturing buckling restrained building material |
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Application publication date: 20160420 |
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