CN208472542U - A kind of period composite construction box beam - Google Patents
A kind of period composite construction box beam Download PDFInfo
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- CN208472542U CN208472542U CN201820494037.8U CN201820494037U CN208472542U CN 208472542 U CN208472542 U CN 208472542U CN 201820494037 U CN201820494037 U CN 201820494037U CN 208472542 U CN208472542 U CN 208472542U
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- box beam
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- 239000002131 composite material Substances 0.000 title claims abstract description 57
- 238000010276 construction Methods 0.000 title abstract description 11
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- 239000000463 material Substances 0.000 claims abstract description 14
- 238000003491 array Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 230000007547 defect Effects 0.000 description 29
- 229920002379 silicone rubber Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000004807 localization Effects 0.000 description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
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- 230000004044 response Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
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- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a kind of period composite construction box beams, and using the top plate and bottom plate of box beam, diaphragm plate and web as substrate, periodicity or relaxed periodicity insertion scatterer form smooth type period composite construction slab box beam；Periodicity or relaxed periodicity arrangement raised body oscillator form male-type period composite construction box beam.By the size, arrangement regulation and the position in box beam that change insertion scatterer or periodic arrangement raised body oscillator, form the period composite construction slab box beam with different vibration dampings, shock insulation characteristic, with preferable vibration damping, isolating affection, and it is suitable for special frequency channel vibration control problem.With traditional box beam ratio, period composite construction box beam, which has the following characteristics that, to be adjusted and be controlled by the selection or arrangement of group element material, vibration isolation function can be realized merely with the band gap properties of period composite construction box beam, overall structure rigidity with higher and intensity, it will not influence the bearing capacity of structure, and overall structure is simple, manufacturing cost is low, easy for construction.
Description
Technical Field
The utility model belongs to engineering structure field especially relates to a cycle composite construction case roof beam.
Background
The periodic composite structure has a forbidden band characteristic that vibrations in a specific frequency range cannot propagate in the structure. When the periodic composite structure has point defects or line defects, vibration corresponding to the frequency of the defects can be localized at the point defects, and vibration localization occurs or propagates along the line defects. The fluctuation characteristic of the periodic composite structure provides a new control mechanism for vibration isolation and vibration control of the engineering structure, for example, the periodic composite structure is placed in a vibration propagation path or the structure is designed by utilizing the idea of the periodic composite structure, so that the vibration in a specific frequency band is prevented from being propagated in the structure, and the vibration isolation function of the structure is realized; or the defect state characteristic is utilized to design the propagation path of the vibration, so as to realize the control of the vibration. The top plate, the bottom plate, the diaphragm plate and the web plate of the box girder are taken as base plates, and scatterers are embedded periodically or quasi-periodically to form a flat periodic composite structure box girder; and the raised body vibrators are periodically or quasi-periodically arranged to form the raised periodic composite structure box girder. Compared with the traditional box girder, the box girder formed by the periodic composite structural plates has the following characteristics: the vibration isolation plate can be adjusted and controlled by selecting or arranging component materials, the vibration isolation function can be realized only by utilizing the band gap characteristic of the periodic composite structure plate, the integral structure has higher rigidity and strength, the bearing capacity of the structure cannot be influenced, the functions of better vibration attenuation, vibration isolation control and the like can be realized inside the structure only by utilizing the band gap characteristic, and the integral structure is simple, low in manufacturing cost and convenient to construct. Therefore, the box girder with the periodic composite structure has very important engineering application value.
Disclosure of Invention
The technical problem is as follows: the utility model aims at providing a cycle composite construction case roof beam has better damping, shock insulation effect to be applicable to specific frequency channel vibration control problem.
The technical scheme is as follows: the utility model discloses a periodic composite structure box girder includes the roof of case roof beam, the web of case roof beam, the cross slab of case roof beam, the bottom plate of case roof beam, wherein, the web of case roof beam has two, the both sides of the bottom plate of case roof beam are connected respectively to its lower part, its upper portion is connected with the lower plate face of the roof of case roof beam, make the cross-section of periodic composite structure box roof beam become a quadrangle, still be equipped with the cross slab of case roof beam in this quadrangle, the roof of case roof beam is connected on the upper portion of the cross slab of this case roof beam, the web of case roof beam is connected to both sides, the bottom plate of case roof beam is connected to the lower part, use roof, bottom plate, cross slab and web of case roof beam as the base plate, periodic or quasi-periodic embedding scatterer forms flat type periodic composite; and the raised body vibrators are periodically or quasi-periodically arranged to form the raised periodic composite structure box girder.
Wherein,
the box girder comprises a single-box single-chamber box girder and a single-box multi-chamber box girder.
And the top plate of the box girder, the web plate of the box girder, the bottom plate of the box girder and/or the diaphragm plate of the box girder in the quadrangle are/is respectively provided with a raised body vibrator which is periodically arranged, the bottom of the raised body vibrator is positioned on the top plate of the box girder, the web plate of the box girder and the bottom plate of the box girder, and the top of the raised body vibrator is positioned on the bottom of the raised body vibrator.
The raised body vibrator is made of metal, rubber, concrete, ceramic and fiber reinforced composite material, and the raised body vibrator is periodically arranged to have two-component, three-component or more-component forms.
The periodically arranged convex body oscillators are divided into single-side convex arrays and double-side convex arrays.
The embedded scatterers are arranged on the web plate of the box girder, the bottom plate of the box girder and the diaphragm plate of the box girder, and are periodically distributed in a form of two groups, three groups or more.
The periodic embedded scatterers are made of metal, rubber, concrete, ceramic or fiber reinforced composite materials.
The periodic embedded scatterers and the periodic arranged convex body vibrators form specific forbidden band characteristics, vibration localization characteristics and vibration directional propagation characteristics of the box girder through different arrangement rules of the periodic embedded scatterers and the periodic arranged convex body vibrators.
The periodic embedding scatterer and the periodic arrangement of the convex body vibrators can be subjected to defect design while the arrangement of the periodic embedding scatterer and the periodic arrangement of the convex body vibrators is regular, the vibration of the box girder is induced through different defect forms, elastic waves are directionally transmitted along the direction of the linear defect, the fixed-point absorption and the directional dispersion of elastic vibration energy are promoted, and a protective barrier for a key area is formed through the sacrificial damage of a point defect area and the directional induction of the direction of the linear defect.
The method comprises the following steps of periodically embedding scatterers and periodically arranging convex body vibrators, wherein the defect design comprises the following steps: point defect design, line defect design and local area defect design.
Has the advantages that: the box girder with the periodic composite structure has good vibration reduction and isolation effects and is suitable for the problem of vibration control in a specific frequency band. The design of defects can be carried out, the vibration response of the box girder is induced through different defect forms, so that elastic waves are directionally transmitted along the direction of the linear defect, the fixed-point absorption and the directional dispersion of elastic kinetic energy are promoted, and a protective barrier for a key area is formed through the sacrifice damage of a point defect area and the directional induction of the linear defect direction. Compared with the traditional box girder, the periodic composite structure box girder has the following characteristics: the vibration isolation plate can be adjusted and controlled by selecting or arranging component materials, the vibration isolation function can be realized only by utilizing the band gap characteristic of the periodic composite structure plate, the integral structure has higher rigidity and strength, the bearing capacity of the structure cannot be influenced, and the integral structure is simple, low in manufacturing cost and convenient to construct.
Drawings
FIG. 1 is a schematic view of an integral type I two-component convex periodic composite structure box girder of the present invention;
FIG. 2 is a schematic view of the I-shaped internal structure of the box girder with a raised periodic composite structure of the present invention;
FIG. 3 is a schematic view of an I-shaped vertical surface of a box girder with a raised periodic composite structure according to the present invention;
FIG. 4 is a schematic view of a box girder type II with a raised periodic composite structure according to the present invention;
fig. 5 is the utility model discloses a protruding type periodic composite structure case roof beam II type inner structure sketch map.
Fig. 6 is the utility model discloses a protruding type periodic composite structure case roof beam II type positive vertical plane schematic diagram.
Fig. 7 is the whole schematic diagram of the embedded periodic composite structure box girder iii of the present invention.
Fig. 8 is a schematic view of the third type internal structure of the embedded periodic composite structure box girder of the present invention.
Fig. 9 is a schematic view of a vertical plane of an embedded periodic composite box girder of the present invention.
Fig. 10 is the whole schematic diagram of the box girder type IV with the raised periodic composite structure of the present invention.
Fig. 11 is the utility model discloses a protruding type periodic composite structure case roof beam IV type internal construction sketch map.
Fig. 12 is a schematic view of the IV-shaped vertical surface of the box girder with a raised periodic composite structure according to the present invention.
Fig. 13 is a schematic view of a single-sided convex vibrator according to the present invention.
Fig. 14 is a schematic diagram of a structure of a double-sided convex vibrator according to the present invention.
The figure shows that: the structure comprises a top plate 1 of a box girder, a web 2 of the box girder, a diaphragm 3 of the box girder, a bottom plate 4 of the box girder, a top part 5 of a convex body vibrator, a bottom part 6 of the convex body vibrator and an embedded scatterer 7.
Detailed Description
The forming method of the utility model is as follows:
1) the top plate, the bottom plate, the transverse partition plate and the web plate of the box girder are taken as base plates, and scatterers are periodically embedded to form a flat periodic composite structure box girder; and the raised body vibrators are periodically arranged to form a raised periodic composite structure box girder.
2) The periodically arranged convex body vibrators are periodically arranged on the top plate, the bottom plate, the transverse partition plate and the web plate of the box girder and can be designed into single-side convex arrays and double-side convex arrays, wherein the periodically arranged convex body vibrators can only be designed into a single-side convex form towards the inner side of the box girder at the top plate of the box girder.
3) The periodic embedded scatterers and the periodic arranged convex body vibrators have regularity in arrangement, and specific forbidden band characteristics, vibration localization characteristics and vibration directional propagation characteristics of the box girder can be formed through different arrangement rules.
The utility model provides a periodic embedding scatterer comprises metal, rubber, concrete, pottery, fibre reinforced composite and other non-metallic material, and the form of periodic embedding scatterer has forms such as two components, three-component or multicomponent.
The utility model provides a periodic embedding scatterer and periodic arrangement bellying oscillator when self is arranged and has regularity, can carry out the defect design, and the vibration response to the case roof beam through the defect form of difference is induced, makes the elastic wave along the directional propagation of line defect direction, makes fixed point absorption and directional dispersion of elasticity kinetic energy, and the sacrifice through some defect region destroys the directional sparse with line defect direction, forms the protection protective screen to key region.
The utility model provides a periodic embedding scatterer and the defect design that periodic arrangement protrusion body oscillator self was arranged include: point defect design, line defect design and local area defect design.
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings.
Example 1:
1) as shown in fig. 1 to 3, the present embodiment is a box girder i type with a bulge type periodic composite structure, a top plate of the box girder 1 is used as a substrate, two sets of bulge vibrator elements are periodically arranged on the inner side of the top plate, and the bottoms of the two sets of bulge vibrator elements are connected with the top plate of the box girder, wherein the bottom 6 of the two sets of bulge vibrator elements is made of silicon rubber, and the top 5 of the two sets of bulge vibrator elements is made of lead material;
2) the web 2 of the box girder and the bottom plate 4 of the box girder are base plates, two-component bulge body oscillators are periodically arranged on the inner sides of the web 2 of the box girder and the bottom plate 4 of the box girder, the bottoms of the two-component bulge body oscillators are connected with the top plate of the box girder, in the embodiment, the bottom 6 of the two-component bulge body oscillator is made of silicon rubber, and the top 5 of the two-component bulge body oscillator is made of lead materials, so that the I-shaped box girder with the bulge type periodic composite structure is formed.
Example 2:
1) as shown in fig. 4 to 6, the present embodiment is a convex periodic composite structure box girder type ii, the top plate of the box girder 1 is used as a substrate, two sets of convex body vibrators are periodically arranged on the inner side of the top plate, and the bottoms of the two sets of convex body vibrators are connected with the top plate of the box girder, in the present embodiment, the bottoms 6 of the two sets of convex body vibrators are made of silicon rubber, and the top 5 of the two sets of convex body vibrators is made of lead material;
2) the web 2 of the box girder and the bottom plate 4 of the box girder are base plates, two groups of convex body vibrators are periodically arranged on the inner side and the outer side of the web 2 of the box girder and the inner side of the bottom plate 4 of the box girder at the same time, the bottoms of the two groups of convex body vibrators are connected with the top plate of the box girder, the bottom 6 of the two groups of convex body vibrators is made of glass fiber reinforced plastics, and the top 5 of the two groups of convex body vibrators is made of copper materials to form a convex type periodic composite structure box girder type II.
Example 3:
1) as shown in fig. 7 to 9, in the present embodiment, an embedded periodic composite structure box girder type iii is provided, in which a top plate of a box girder 1 is used as a substrate, two sets of protruded body vibrators are periodically arranged on the inner side of the top plate, and the bottoms of the two sets of protruded body vibrators are connected to the top plate of the box girder, in the present embodiment, the bottoms 6 of the two sets of protruded body vibrators are made of silicon rubber, and the top 5 of the two sets of protruded body vibrators is made of lead material;
2) the web 2 of the box girder and the bottom plate 4 of the box girder are base plates, scatterers are periodically embedded on the web 2 of the box girder and the bottom plate 4 of the box girder at the same time, and the embedded scatterers 7 are made of lead materials in the embodiment to form an embedded type periodic composite structure box girder III type.
Example 4:
1) as shown in fig. 10 to 11, in the present embodiment, the box girder is a raised periodic composite structure IV type, a top plate of the 1 box girder is used as a substrate, two sets of raised body vibrators are periodically arranged on the inner side of the top plate, and the bottoms of the two sets of raised body vibrators are connected to the top plate of the box girder, in the present embodiment, the bottoms 6 of the two sets of raised body vibrators are made of silicon rubber, and the top 5 of the two sets of raised body vibrators is made of lead material;
2) the web 2 of the box girder and the bottom plate 4 of the box girder are base plates, two groups of convex body vibrators are periodically arranged on the inner side and the outer side of the web 2 of the box girder and the inner side of the bottom plate 4 of the box girder at the same time, the bottoms of the two groups of convex body vibrators are connected with the top plate of the box girder, the bottom 6 of the two groups of convex body vibrators is made of glass fiber reinforced plastics, and the top 5 of the two groups of convex body vibrators is made of copper materials to form an IV type box girder with a convex type periodic composite structure.
Claims (6)
1. The periodic composite structure box girder is characterized by comprising a top plate (1) of the box girder, a web plate (2) of the box girder, a diaphragm plate (3) of the box girder and a bottom plate (4) of the box girder; the two webs (2) of the box girder are respectively connected with the two sides of the bottom plate (4) of the box girder at the lower part, the upper part of the web (2) is connected with the lower plate surface of the top plate (1) of the box girder, so that the section of the box girder with the periodic composite structure is a quadrangle, a transverse partition plate (3) is further arranged in the quadrangle, the upper part of the transverse partition plate (3) of the box girder is connected with the top plate (1) of the box girder, the two sides of the transverse partition plate are connected with the webs (2) of the box girder, and the lower part of the transverse partition plate.
2. The periodic composite structural box girder of claim 1, wherein the box girder comprises a single-box single-chamber box girder and a single-box multi-chamber box girder.
3. The periodic composite structure box girder according to claim 2, wherein periodic or quasi-periodic arranged bump vibrator is respectively arranged on the top plate (1) of the box girder, the web plate (2) of the box girder, the bottom plate (4) of the box girder and/or the diaphragm plate (3) of the box girder in the quadrangle, the bottom (6) of the bump vibrator is positioned on the top plate (1) of the box girder, the web plate (2) of the box girder and the bottom plate (4) of the box girder, and the top (5) of the bump vibrator is positioned on the bottom (6) of the bump vibrator.
4. The periodic composite structure box girder according to claim 3, wherein the periodically or quasi-periodically arranged convex body oscillators are divided into single-sided convex arrays and double-sided convex arrays.
5. The periodic composite structure box girder according to claim 1, wherein embedded scatterers (7) are arranged on the web (2) of the box girder, the bottom plate (4) of the box girder and the diaphragm (3) of the box girder, and the embedded scatterers (7) are periodically or quasi-periodically distributed and are distributed in a form of two, three or more components.
6. A periodic composite structure box girder according to claim 5, characterized in that the periodic or quasi-periodic embedded scatterers (7) are made of metal, rubber, concrete, ceramics or fiber reinforced composite materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820494037.8U CN208472542U (en) | 2018-04-09 | 2018-04-09 | A kind of period composite construction box beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820494037.8U CN208472542U (en) | 2018-04-09 | 2018-04-09 | A kind of period composite construction box beam |
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| CN208472542U true CN208472542U (en) | 2019-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611957A (en) * | 2018-04-09 | 2018-10-02 | 东南大学 | A kind of period composite construction box beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611957A (en) * | 2018-04-09 | 2018-10-02 | 东南大学 | A kind of period composite construction box beam |
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