CN203782969U - Magnetic-suspension shockproof floor steel truss - Google Patents
Magnetic-suspension shockproof floor steel truss Download PDFInfo
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- CN203782969U CN203782969U CN201420134044.9U CN201420134044U CN203782969U CN 203782969 U CN203782969 U CN 203782969U CN 201420134044 U CN201420134044 U CN 201420134044U CN 203782969 U CN203782969 U CN 203782969U
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- web member
- steel truss
- floor steel
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- chord
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Abstract
The utility model belongs to the technical field of the building construction structures and specifically relates to a magnetic-suspension shockproof floor steel truss. The magnetic-suspension shockproof floor steel truss comprises an upper chord member, a web member and a lower chord member; the web member is divided into upper and lower sections, the two of which are an upper web member and a lower web member, respectively; the upper web member is fixedly connected with the upper chord member, while the lower web member is fixedly connected with the lower chord member; the upper web member is in magnetic suspension connection with the lower web member; a prefabricated formwork is arranged above the upper chord member; and an electromagnetic shield is mounted on the prefabricated formwork. The magnetic-suspension shockproof floor steel truss has excellent shock absorption property and wind resistance, and is simple in structure and convenient to mount; and the magnetic-suspension shockproof floor steel truss is used for fundamentally solving many disadvantages of a floor steel truss structure in the prior art, and has revolutionary significance and an excellent application prospect in the technical field of the building construction structures.
Description
Technical field
The utility model belongs to building operations technical field of structures, is specifically related to a kind of magnetic suspension shockproof floor steel truss.
Background technology
At present, in building structure floor technical applications, it is several that the type of floor mainly contains cast in place concrete plate, concrete prefabricated board, superimposed sheet, composite deck slabs etc.Along with highrise building, the particularly development of high-rise building steel structure, composite floor is more and more subject to people's attention, also more and more higher to the requirement of floor steel truss.Truss is generally the supporting traverse structure being formed by connecting by welding, riveted joint or bolt by rod member, need to have sufficient intensity, and fracture or plastic strain do not occur; There are enough rigidity, excessive elastic deformation does not occur; There is enough stability, do not occur to cause caving in because of the sudden transition of equilibrium form; Good dynamics, antidetonation, wind resistance.
People are a lot of to the research of floor steel truss structure, such as: the Chinese patent that application number is 200620102302.0 discloses a kind of large span combined truss, there is the structural member that two Pin consist of upper chord, web member and lower chord combination, the upper chord of described two structural members is parallel to each other and an alternate distance, described between two upper chords that are parallel to each other across being associated with precast plate.And for example: the Chinese patent that application number is 200620106053.2 discloses a kind of steel truss, be provided with lower chord, on lower chord, be associated with " V " shape web member, " V " shape web member upper end is associated with shearing-resistant member, and shearing-resistant member side opening is provided with for connecting the perforation of tool-type upper chord.But the direction of people's Improvement is improved mainly for intensity, rigidity and the construction facility of steel truss, but seldom its antidetonation, wind resistance is considered.
In recent years, various places earthquake occurs frequent, and house caves in, and people's security of the lives and property is on the hazard, and is badly in need of this to find corresponding measure.The floor steel truss structure of developing higher antidetonation, wind resistance has been extremely urgent task.
Current suspension technology mainly comprises electromagnetic suspension, light suspension, acoustic levitation, pneumatic floating, electrostatic suspension, particle beams suspension etc., wherein electromagnetic suspension technology comparative maturity.Electromagnetic suspension technology (electromagnetic levitation) is called for short EML technology, and its cardinal principle is that the eddy current that utilizes electromagnetic field of high frequency to produce in metal surface is realized the suspension to metal ball.Magnetic suspension is to utilize suspension magnetic force to make object in an equilibrium state without friction, contactless suspension.
The effect that magnetic suspension and electricity suspend be utilize magnetic field force or electric field force make an object along or around an axle or several axle of a certain infrastructural frame, keep permanent position.This suspension is static instability normally.Stable can realization by following two kinds of ways, the one, measure continuously or intermittently the position of object, by servomechanism installation, promptly control the field of force, it requires the contracting of position to move the scope that is no more than permission relatively to make object, and the 2nd, by adjusting the parameter of exciting circuit itself.SERVO CONTROL suspends and is called active suspension, and the suspension that realizes inherently stable by its exciting circuit parameter of adjustment is called passive suspension (passive magnetic suspension).
Summary of the invention
The purpose of this utility model is for the problems referred to above, and a kind of magnetic suspension shockproof floor steel truss is provided, and has excellent anti-seismic performance and wind resistance, and simple in structure, easy for installation, and saving steel reduces cost, and speed of application is fast, saves template.
For achieving the above object, the technical solution adopted in the utility model is: a kind of magnetic suspension shockproof floor steel truss, comprise upper chord, web member and lower chord, described web member is divided into two sections, be respectively web member and lower web member, described upper web member is fixedly connected with described upper chord, and described lower web member is fixedly connected with described lower chord, and between described upper web member and described lower web member, magnetic suspension is connected.Utilize the principle of " two like magnetic poles repel each other; there is a natural attraction between the sexes ", allow magnet there is gravitational ability of resistance, make web member depart from lower web member completely, be suspended in the distance about 10mm of lower web member place, thereby make to soar between upper chord and lower chord, even if run into the sharp poundings such as earthquake, owing to having blocked the propagation of power, greatly alleviated destructiveness, can play good cushioning effect, shake-proof ability is greatly enhanced.
As preferably, described upper web member lower end is provided with electromagnet, and described lower web member upper end is provided with reaction plate.The electric current of controlling electromagnet makes to keep between electromagnet and reaction plate the gap of 10mm, allow repulsive force and the mutual balance of upper chord load-bearing between electromagnet and reaction plate, utilize rows of magnets repulsion that upper chord is floated to 10mm left and right, upper chord is suspended on lower chord.
As preferably, the distance between described electromagnet and described reaction plate is 5～20mm.
As preferably, described electromagnet surrounding is provided with the secondary electromagnet to downward-extension, and described reaction plate surrounding is provided with the side reaction plate corresponding with described secondary electromagnet.Electromagnet and secondary electromagnet are trapped among the outside of reaction plate and secondary reaction plate, and between gap be 5～20mm, be preferably 10mm, electromagnet and reaction plate can keep upper chord on above-below direction to be suspended on lower chord, simultaneously secondary electromagnet and secondary reaction plate can keep between upper chord and lower chord, not being subjected to displacement in horizontal direction, thereby guarantee the stable, safe and reliable of whole steel truss.
As preferably, the distance between described secondary electromagnet and described secondary reaction plate is 5～20mm.
As preferably, above described upper chord, be provided with prefab form.Upper chord top arranges the prefab form of various functions, is applicable to the composite floors such as various cast-in-place, die moulds, installation, and construction is convenient.
As preferably, on described prefab form, electro-magnetic shielding cover is installed, described electro-magnetic shielding cover is surrounded described upper chord, web member and lower chord.Electro-magnetic shielding cover electromagnetic interference to external world plays good shielding action; the web member connecting by magnetic suspension of its inside of fine protection; electro-magnetic shielding cover is tubular structure; cross section can be circular or square; its upper end is fixed on prefab form; prefab form can surround within it; also can be in its outside; electro-magnetic shielding cover lower end is unsettled; do not affect the mutual alignment adjustment between web member and lower web member; meanwhile, electro-magnetic shielding cover can also further be stablized its inner magnetic suspension system, makes whole steel truss more safe and reliable.
As preferably, described lower chord two ends are provided with shelves bar.Be used for being shelved on load bearing wall or girder.
As preferably, between described upper chord and upper web member, be provided with shearing-resistant member.Make the shear resistance of truss more excellent.
The utility model discloses a kind of magnetic suspension shockproof floor steel truss, there is excellent anti-seismic performance and wind resistance, and simple in structure, easy for installation, saving steel, reduce cost, speed of application is fast, saves template, is fundamentally solving a lot of drawbacks of floor steel truss structure of the prior art, there is revolutionary meaning, in building operations technical field of structures, will have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of magnetic suspension shockproof floor of the utility model steel truss embodiment.
In figure: 1-upper chord; 11-prefab form; 12-shearing-resistant member; 2-web member; The upper web member of 21-; 211-electromagnet; The secondary electromagnet of 212-; Web member under 22-; 221-reaction plate; The secondary reaction plate of 222-; 3-lower chord; 31-shelves bar; 4-electro-magnetic shielding cover.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described in detail.
Embodiment
As shown in Figure 1, a kind of magnetic suspension shockproof floor steel truss, comprise upper chord 1, web member 2 and lower chord 3, described web member 2 is divided into two sections, be respectively web member 21 and lower web member 22, described upper web member 21 is fixedly connected with described upper chord 1, and described lower web member 22 is fixedly connected with described lower chord 3, and between described upper web member 21 and described lower web member 22, magnetic suspension is connected.
Described upper web member 21 lower ends are provided with electromagnet 211, and described lower web member 22 upper ends are provided with reaction plate 221.
Distance between described electromagnet 211 and described reaction plate 221 is 5～20mm.
Described electromagnet 211 surroundings are provided with the secondary electromagnet 212 to downward-extension, and described reaction plate 221 surroundings are provided with the side reaction plate 222 corresponding with described secondary electromagnet 212.
Distance between described secondary electromagnet 212 and described secondary reaction plate 222 is 5～20mm.
Described upper chord 1 top is provided with prefab form 11.
On described prefab form 11, electro-magnetic shielding cover 4 is installed, described electro-magnetic shielding cover 4 is surrounded described upper chord 1, web member 2 with lower chord 3.
Described lower chord 3 two ends are provided with shelves bar 31.
Between described upper chord 1 and upper web member 21, be provided with shearing-resistant member 12.
In addition, at least two Pin magnetic suspension shockproof floor of the present utility model steel truss be arranged in parallel or angled setting all can.
With way of example, the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any improvement of doing based on the utility model or modification all belong to the protection domain of the utility model claim.
Claims (9)
1. a magnetic suspension shockproof floor steel truss, comprise upper chord (1), web member (2) and lower chord (3), it is characterized in that: described web member (2) is divided into two sections, be respectively web member (21) and lower web member (22), described upper web member (21) is fixedly connected with described upper chord (1), described lower web member (22) is fixedly connected with described lower chord (3), and between described upper web member (21) and described lower web member (22), magnetic suspension is connected.
2. a kind of magnetic suspension shockproof floor steel truss according to claim 1, is characterized in that: described upper web member (21) lower end is provided with electromagnet (211), and described lower web member (22) upper end is provided with reaction plate (221).
3. a kind of magnetic suspension shockproof floor steel truss according to claim 2, is characterized in that: the distance between described electromagnet (211) and described reaction plate (221) is 5～20mm.
4. a kind of magnetic suspension shockproof floor steel truss according to claim 2, it is characterized in that: described electromagnet (211) surrounding is provided with the secondary electromagnet (212) to downward-extension, described reaction plate (221) surrounding is provided with the side reaction plate (222) corresponding with described secondary electromagnet (212).
5. a kind of magnetic suspension shockproof floor steel truss according to claim 4, is characterized in that: the distance between described secondary electromagnet (212) and described secondary reaction plate (222) is 5～20mm.
6. a kind of magnetic suspension shockproof floor steel truss according to claim 1, is characterized in that: described upper chord (1) top is provided with prefab form (11).
7. a kind of magnetic suspension shockproof floor steel truss according to claim 6, it is characterized in that: electro-magnetic shielding cover (4) is installed on described prefab form (11), and described electro-magnetic shielding cover (4) is surrounded described upper chord (1), web member (2) with lower chord (3).
8. a kind of magnetic suspension shockproof floor steel truss according to claim 1, is characterized in that: described lower chord (3) two ends are provided with shelves bar (31).
9. a kind of magnetic suspension shockproof floor steel truss according to claim 1, is characterized in that: between described upper chord (1) and upper web member (21), be provided with shearing-resistant member (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134044.9U CN203782969U (en) | 2014-03-20 | 2014-03-20 | Magnetic-suspension shockproof floor steel truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134044.9U CN203782969U (en) | 2014-03-20 | 2014-03-20 | Magnetic-suspension shockproof floor steel truss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203782969U true CN203782969U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420134044.9U Expired - Fee Related CN203782969U (en) | 2014-03-20 | 2014-03-20 | Magnetic-suspension shockproof floor steel truss |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926691A (en) * | 2016-06-07 | 2016-09-07 | 太原理工大学 | Large cascaded shear model box internally provided with electromagnetic damping devices, and use method thereof |
| CN108222285A (en) * | 2018-01-31 | 2018-06-29 | 合肥建工集团有限公司 | A kind of assembly concrete member reinforcing steel bar magnetic suspension connects localization method |
-
2014
- 2014-03-20 CN CN201420134044.9U patent/CN203782969U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926691A (en) * | 2016-06-07 | 2016-09-07 | 太原理工大学 | Large cascaded shear model box internally provided with electromagnetic damping devices, and use method thereof |
| CN105926691B (en) * | 2016-06-07 | 2017-11-03 | 太原理工大学 | The large-scale stacking shear model box and its application method of built-in electromagnetic damping device |
| CN108222285A (en) * | 2018-01-31 | 2018-06-29 | 合肥建工集团有限公司 | A kind of assembly concrete member reinforcing steel bar magnetic suspension connects localization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150320 |
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| EXPY | Termination of patent right or utility model |