CN102080439A - Composite honeycomb sandwich structure floor - Google Patents
Composite honeycomb sandwich structure floor Download PDFInfo
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- CN102080439A CN102080439A CN 201010604878 CN201010604878A CN102080439A CN 102080439 A CN102080439 A CN 102080439A CN 201010604878 CN201010604878 CN 201010604878 CN 201010604878 A CN201010604878 A CN 201010604878A CN 102080439 A CN102080439 A CN 102080439A
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Abstract
The invention relates to a composite honeycomb sandwich structure floor. The composite honeycomb sandwich structure floor comprises upper skin, a honeycomb sandwich and lower skin and is characterized in that: the honeycomb sandwich consists of an upper honeycomb core and a lower honeycomb core; middle skin is arranged between the upper honeycomb core and the lower honeycomb core; the upper skin is arranged above the upper honeycomb core; the lower skin is arranged below the lower honeycomb core; and compressive strength or density of the lower honeycomb core is lower than that of the upper honeycomb core. The composite honeycomb sandwich structure floor has the advantage of improving from-top-to-bottom dispersing efficiency of concentrated load or impact load by adopting the structure of the upper skin, the middle skin, the lower skin, the upper honeycomb core and the lower honeycomb core according to the characteristic that the concentrated load or the impact load are transmitted from the upper skin to the lower skin along the height direction to perform load dispersion, so that the lower honeycomb core can adopt the honeycomb with compressive strength or density of lower than that of the upper honeycomb core, optimization effect of each resource in the structure is completely exerted, and weight and cost are reduced.
Description
Technical field
The invention is a kind of floor of light structures, is used for the building unit of electron trade antistatic.
Background technology
Electronics, offices such as communication and medium need be built up to build and be set up large-area antistatic Office Area in the thing in modernization, with present widely used antistatic raised floor is example, a large amount of antistatic raised floors that use mainly contain all steel floor and calcium sulfate gypsum floor, the former structure is that all steel shell is irritated with foam cement, every square meter 40-45 kilogram that weighs, the latter is as whole main materials with the calcium sulfate gypsum, every square meter 70-75 kilogram that weighs especially, high-rise modern office building for a building 100,000 square meters, as only calculating with lay all steel movable floor, floor weight also reaches more than the 4000-4500 ton.
The honeycomb sandwich construction laminate is a kind of light structures efficiently floor, and every square meter weight is expected to alleviate the kilogram to 20-25, the high-rise modern office building of a building 100,000 square meters, and only one of antistatic raised floor just can loss of weight about 2000 tons.
Aerospace flight vehicle; the honeycomb sandwich construction form is extensively adopted on the floor of boats and ships and bullet train; but all adopt single sandwich in the application; the advantage of this structure is in light weight; to uniform load can give full play to covering and honeycomb core separately performance and have effective supporting capacity; but when running into the bigger concentration of local load that acts on external surface or shock loading; this single sandwich is not as carrying out the enhancing of covering and honeycomb; usually can produce the exterior skin local damage and destroy, and the exterior skin that causes of honeycomb core crippling mode of failure such as sink.As covering in the structure and honeycomb core are strengthened, then can significantly increase the weight of structure.
And there are stricter concentration of local load or impact loads property requirement in the floor of civilian construction, and in office activity, ground is impacted in losing of heavy wares, and the local extruding of equipment carrying part, floor etc. are frequent relatively.
China to the antistatic raised floor march strict technology and product specification.The standard " SJ/T10796-2001 anti-static movable floor general specification " of country's antistatic raised floor industry, especially the mechanical property of antistatic raised floor has been carried out technical requirements, point load, impact load load bearing requirements also must be satisfied in the floor except that satisfying uniform carrying, rolling load requirement.
Thereby movable floor adopts single sandwich, then is difficult under the situation that satisfies above load-carrying properties, takes into account the weight and the cost on floor.
Summary of the invention
The purpose of the invention provides a kind of composite honeycomb sandwich structure floor of improving point load and impact load load-carrying properties; The purpose of the invention is to realize by following technical scheme: the composite honeycomb sandwich structure floor, comprise covering, honeycomb interlayer and following covering, it is characterized in that honeycomb interlayer is made of last honeycomb core and following honeycomb core, covering in the dress between last honeycomb core and following honeycomb core, last covering be contained in honeycomb core above, following covering be contained in down honeycomb core below.
Following honeycomb core compressive strength or density are lower than upward honeycomb core.
The advantage of the invention: the transmission according to point load or impact load is highly carried out the characteristic that load is disperseed from the downward covering of last covering edge, by adopting covering, middle covering and three layers of covering of following covering and going up honeycomb core and following honeycomb core structures, improved point load or impact load dispersion efficiency from the top down, thereby can being adopted, honeycomb core is lower than compressive strength or the low-density honeycomb of going up honeycomb core, reach the optimization effect of giving full play to each resource in the structure, thereby reach loss of weight and reduce cost.Obviously manifest the resource distribution from top to bottom of its short transverse, adapt, give full play to the service efficiency of each material in the structure, thereby reach the purpose of structure loss of weight with its short transverse stress distribution from top to bottom.
Description of drawings
Fig. 1 is a composite honeycomb sandwich structure flooring structure schematic diagram.
Among the figure: 1, go up covering 2, go up honeycomb core 3, middle covering 4, honeycomb core 5, covering down down.
The specific embodiment
The composite honeycomb sandwich structure floor, comprise covering, honeycomb interlayer and following covering, it is characterized in that honeycomb interlayer is made of last honeycomb core and following honeycomb core, covering in the dress between last honeycomb core and following honeycomb core, last covering be contained in honeycomb core above, following covering be contained in down honeycomb core below.Last honeycomb core and last covering and middle covering junction reach down, and honeycomb core glueds joint with glue with middle covering and following covering junction.
Following honeycomb core compressive strength or density are lower than upward honeycomb core.
For reaching the above object, take following measure in the composite honeycomb sandwich structure floor: the last covering of going up in the sandwich adopts the thick or performance enhancing than following covering, last honeycomb core adopts than the little aperture lattice high density of following honeycomb core or the honeycomb core of high compressive strength, to resist from the bigger external concentrated and shock loading of last covering; The effect of the last sandwich by designing definite height, stress disperses to be passed to down sandwich, this at present sandwich just can adopt than last covering and hang down the following covering that carries and the following honeycomb core of low density and big pore lattice or low compressive strength, to economize on resources.
Below in conjunction with embodiment the invention is further elaborated:
Embodiment 1:
In certain test, single interlayer honeycomb panel adopts and goes up covering is the 1.2mm steel plate, and following covering is the 1.0mm steel plate, and the material model is Q235, its yield strength 240Mpa, and honeycomb core adopts aluminium honeycomb core material, density 45kg/m
3, single interlayer cellular board thickness 27.5mm that hole lattice length of side 5.0mm, honeycomb core height 25mm, compressive strength 1.3Mpa make, every square meter weight is 18.8kg.The composite honeycomb sandwich structure floor is adopted and gone up covering is the 1.2mm steel plate, and middle covering is the 0.5mm steel plate, and following covering is the 0.5mm steel plate, and the material model is Q235, its yield strength 240Mpa, and, last honeycomb core adopts aluminium honeycomb core material, density 100kg/m
3, hole lattice length of side 1.85mm, honeycomb core height 5mm, compressive strength 5.8Mpa, following honeycomb core also adopts the aluminium honeycomb core material, density 45kg/m
3, hole lattice length of side 5.0mm, honeycomb core height 20mm, the composite honeycomb sandwich structure ground plate thickness that compressive strength 1.3Mpa makes is 27.7mm, every square meter weight is 19.1kg.Respectively by carrying out point load test and impact load test in the national standard " SJ/T10796-2001 anti-static movable floor general specification ", estimating the result shows: single interlayer honeycomb panel is at 2950N, 25.4 the 0.32mm that is permanently deformed to of generation is descended in the concentrated load of mm * 25.4mm compression area, at the spherical head that impacts of the Φ of 4.5 kg, 50 mm, it is 4.3 mm that 600 mm highly impact the permanent pit depth that produces down.And the permanent deformation of the concentrated load of composite honeycomb sandwich structure floor under same test condition only is 0.03 mm, and impacting the permanent pit depth that produces is 2.55 mm.The composite honeycomb sandwich structure floor single interlayer honeycomb panel corresponding with it that this invention is described compared, and anti-point load and impact property have significantly raising, and weight increases not quite.
Embodiment 2:
In its test of making the composite honeycomb sandwich structure floor, last covering adopts the 1.5mm steel plate, and the material model is Q345, yield strength 370Mpa; Middle covering and following covering all adopt the 0.5mm steel plate, and the material model is Q235, yield strength 240Mpa; Last honeycomb core adopts aluminium honeycomb core, density 100kg/m
3, hole lattice length of side 1.85mm, honeycomb core height 4mm, compressive strength 5.8Mpa; Following honeycomb core adopts aluminium honeycomb core, density 470kg/m
3, hole lattice length of side 5.0mm, honeycomb core height 25mm, compressive strength 1.4Mpa; Be made into the study plot plate of 600 mm * 600 mm, by national standard " SJ/T10796-2001 anti-static movable floor general specification ", carry out floor point load test, loading test in the alpha limit set of floor, floor evenly distributed load test, floor impact load test, the floor rolling loading test, over-all properties all reaches the requirement of light-duty floor rank, wherein the permanent deformation of concentrated load test only is 0.05 mm, impacting the permanent pit depth that produces is 1.35mm, permanent deformation less than the desired value concentrated load in the standard only is 0.25 mm, impacting the permanent pit depth of generation is 1.5mm, and compare with the movable antistatic light-weight of the traditional all steel of same level floor, every weight is reduced to 8kg from 14kg.
Embodiment 3:
In its test of making the composite honeycomb sandwich structure floor, covering adopts the 1.4mm steel plate on this example, and the material model is Q345, yield strength 420Mpa; Middle covering adopts 1.0mm thickness phenolic fireproof plate, hot strength 120 Mpa; Following covering adopts 0.6mm thickness phenolic fireproof plate, hot strength 120 Mpa; Last aluminium honeycomb core density 110kg/m
3, hole lattice length of side 1.875mm, honeycomb core height 5mm, compressive strength 6.2Mpa; Following aluminium honeycomb core density 47kg/m
3, hole lattice length of side 5.0mm, honeycomb core height 25mm, compressive strength 1.4Mpa.Make the study plot plate of 600 mm * 600 mm, by national standard " SJ/T10796-2001 anti-static movable floor general specification ", carry out loading test in floor point load test, the floor alpha limit set, the test of floor evenly distributed load, the test of floor impact load, floor rolling loading test, over-all properties all reaches the requirement of light-duty floor rank.And compare with the movable antistatic light-weight of the traditional all steel of same level floor, wherein the permanent deformation of concentrated load test only is 0.12 mm, impacting the permanent pit depth that produces is 1.40mm, permanent deformation less than the desired value concentrated load in the standard only is 0.25 mm, impacting the permanent pit depth of generation is 1.5mm, and every weight is reduced to 6.5kg from 14kg.
Embodiment 4:
In its test of making the composite honeycomb sandwich structure floor, covering adopts the 0.9mm steel plate on this example, and the material model is 65Mn, yield strength 590Mpa; Middle covering and following covering all adopt the phenolic fireproof plate, hot strength 120 Mpa, middle covering thickness 1mm, following covering thickness 0.6mm; Last honeycomb core adopts aluminium honeycomb core material, density 110kg/m
3, hole lattice length of side 1.875mm, honeycomb core height 5mm, compressive strength 6.2Mpa; Following honeycomb core adopts aluminium honeycomb core material, density 47kg/m
3, hole lattice length of side 5.0mm, honeycomb core height 25mm, compressive strength 1.4Mpa; Make the study plot plate of 600 mm * 600 mm, by national standard " SJ/T10796-2001 anti-static movable floor general specification ", carry out floor point load test, loading test in the alpha limit set of floor, floor evenly distributed load test, floor impact load test, the floor rolling loading test, over-all properties all reaches the requirement of light-duty floor rank, wherein the permanent deformation of concentrated load only is 0.02 mm, impacting the permanent pit depth of generation is 1.05mm, and compare with the movable antistatic light-weight of the traditional all steel of same level floor, every weight is reduced to 5.8kg from 14kg.
Embodiment 5:
In its test of making the composite honeycomb sandwich structure floor, covering adopts the 0.9mm steel plate on this example, and the material model is 65Mn, yield strength 590Mpa; Middle covering and following covering all adopt the phenolic fireproof plate, hot strength 120 Mpa, middle covering thickness 1mm, following covering thickness 086mm; Last honeycomb core adopts Nomex paper wasp nest, density 110kg/m
3, hole lattice length of side 2.0mm, honeycomb core height 4mm, compressive strength 6.8Mpa; Following honeycomb core adopts aluminium honeycomb core, density 35kg/m
3, hole lattice length of side 6.0mm, honeycomb core height 25mm, compressive strength 1.02Mpa; Make the study plot plate of 600 mm * 600 mm, by national standard " SJ/T10796-2001 anti-static movable floor general specification ", carry out floor point load test, loading test in the alpha limit set of floor, floor evenly distributed load test, floor impact load test, the floor rolling loading test, over-all properties all reaches the requirement of light-duty floor rank, wherein the permanent deformation of concentrated load only is 0.08 mm, impacting the permanent pit depth of generation is 1.12mm, permanent deformation less than the desired value concentrated load in the standard only is 0.25 mm, impacting the permanent pit depth of generation is 1.5mm, and compare with the movable antistatic light-weight of the traditional all steel of same level floor, every weight is reduced to 5.6kg from 14kg.
Embodiment 6:
Covering adopts the glass epoxy of 3 mm thickness phenolic aldehyde bases on this embodiment, its bending strength 680 Mpa; Middle covering and following covering adopt phenolic fireproof plate of the same race, hot strength 120 Mpa, middle covering thickness 0.8 mm, following covering thickness 0.6 mm; Last honeycomb core adopts aluminium honeycomb core material, density 110kg/m
3, hole lattice length of side 1.875mm, honeycomb core height 5mm, compressive strength 6.2Mpa; Following honeycomb core adopts aluminium honeycomb core material, density 35kg/m
3, hole lattice length of side 6.0mm, honeycomb core height 25mm, compressive strength 1.02Mpa; Make the study plot plate of 600 mm * 600 mm, by national standard " SJ/T10796-2001 anti-static movable floor general specification ", carry out floor point load test, loading test in the alpha limit set of floor, floor evenly distributed load test, floor impact load test, the floor rolling loading test, over-all properties all reaches the requirement of light-duty floor rank, wherein the permanent deformation of concentrated load only is 0.01 mm, impacting the permanent pit depth of generation is 0.85mm, permanent deformation less than the desired value concentrated load in the standard only is 0.25 mm, impacting the permanent pit depth of generation is 1.5mm, and compare with the movable antistatic light-weight of the traditional all steel of same level floor, every weight is reduced to 4.9kg from 14kg.
Claims (2)
1. composite honeycomb sandwich structure floor, comprise covering, honeycomb interlayer and following covering, it is characterized in that honeycomb interlayer is made of last honeycomb core and following honeycomb core, covering in the dress between last honeycomb core and following honeycomb core, last covering be contained in honeycomb core above, following covering be contained in down honeycomb core below.
2. composite honeycomb sandwich structure according to claim 1 floor, honeycomb core compressive strength or density are lower than upward honeycomb core under it is characterized in that.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010604878 CN102080439A (en) | 2010-12-25 | 2010-12-25 | Composite honeycomb sandwich structure floor |
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| CN 201010604878 CN102080439A (en) | 2010-12-25 | 2010-12-25 | Composite honeycomb sandwich structure floor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015671A (en) * | 2013-01-18 | 2013-04-03 | 江苏美亚新型饰材有限公司 | Antistatic access floor |
| CN104527995A (en) * | 2014-12-09 | 2015-04-22 | 中国科学院上海技术物理研究所 | Antistatic metal honeycomb core composite material veneer structure |
| CN104847079A (en) * | 2015-05-20 | 2015-08-19 | 常州汇飞金属科技有限公司 | Honeycomb type raised movable floor |
| CN108915203A (en) * | 2018-06-22 | 2018-11-30 | 杭州晨基住工科技有限公司 | A kind of composite floor board and floor and its manufacturing process |
| CN111152514A (en) * | 2020-02-10 | 2020-05-15 | 南京旅游职业学院 | Sound absorption composite floor with buffer layer |
| CN113071182A (en) * | 2021-03-23 | 2021-07-06 | 哈尔滨工程大学 | Hollow spherical shell filled honeycomb carbon fiber plate and preparation method thereof |
| CN113719175A (en) * | 2020-05-25 | 2021-11-30 | 中国石油化工股份有限公司 | Multilayer sandwich type aluminum skin and spherical aluminum reticulated shell |
| CN114084358A (en) * | 2021-12-28 | 2022-02-25 | 中国航空工业集团公司西安飞机设计研究所 | Bird collision resisting structure of airplane |
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| US5106668A (en) * | 1989-06-07 | 1992-04-21 | Hexcel Corporation | Multi-layer honeycomb structure |
| CN2211468Y (en) * | 1994-04-14 | 1995-11-01 | 柏燕 | Briquetting floor |
| CN101146710A (en) * | 2005-03-23 | 2008-03-19 | 波音公司 | Integrated aircraft structural floor |
| CN201198311Y (en) * | 2008-08-05 | 2009-02-25 | 铁道部运输局 | Composite flooring of railway vehicle |
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2010
- 2010-12-25 CN CN 201010604878 patent/CN102080439A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5106668A (en) * | 1989-06-07 | 1992-04-21 | Hexcel Corporation | Multi-layer honeycomb structure |
| CN2211468Y (en) * | 1994-04-14 | 1995-11-01 | 柏燕 | Briquetting floor |
| CN101146710A (en) * | 2005-03-23 | 2008-03-19 | 波音公司 | Integrated aircraft structural floor |
| CN201198311Y (en) * | 2008-08-05 | 2009-02-25 | 铁道部运输局 | Composite flooring of railway vehicle |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015671A (en) * | 2013-01-18 | 2013-04-03 | 江苏美亚新型饰材有限公司 | Antistatic access floor |
| CN104527995A (en) * | 2014-12-09 | 2015-04-22 | 中国科学院上海技术物理研究所 | Antistatic metal honeycomb core composite material veneer structure |
| CN104527995B (en) * | 2014-12-09 | 2016-08-24 | 中国科学院上海技术物理研究所 | A kind of metal honeycomb core composite single plate structure of antistatic |
| CN104847079A (en) * | 2015-05-20 | 2015-08-19 | 常州汇飞金属科技有限公司 | Honeycomb type raised movable floor |
| CN108915203A (en) * | 2018-06-22 | 2018-11-30 | 杭州晨基住工科技有限公司 | A kind of composite floor board and floor and its manufacturing process |
| CN111152514A (en) * | 2020-02-10 | 2020-05-15 | 南京旅游职业学院 | Sound absorption composite floor with buffer layer |
| CN113719175A (en) * | 2020-05-25 | 2021-11-30 | 中国石油化工股份有限公司 | Multilayer sandwich type aluminum skin and spherical aluminum reticulated shell |
| CN113071182A (en) * | 2021-03-23 | 2021-07-06 | 哈尔滨工程大学 | Hollow spherical shell filled honeycomb carbon fiber plate and preparation method thereof |
| CN114084358A (en) * | 2021-12-28 | 2022-02-25 | 中国航空工业集团公司西安飞机设计研究所 | Bird collision resisting structure of airplane |
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Application publication date: 20110601 |