CN203583770U - Steel-skeleton expanded stone pressure relief plate and pressure relief structure utilizing same - Google Patents
Steel-skeleton expanded stone pressure relief plate and pressure relief structure utilizing same Download PDFInfo
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- CN203583770U CN203583770U CN201320656909.3U CN201320656909U CN203583770U CN 203583770 U CN203583770 U CN 203583770U CN 201320656909 U CN201320656909 U CN 201320656909U CN 203583770 U CN203583770 U CN 203583770U
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- swollen stone
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Abstract
The utility model relates to a steel-skeleton expanded stone pressure relief plate and pressure relief structure utilizing the same. The pressure relief plate comprises a steel skeleton and a steel wire net paved on the steel skeleton, wherein a expanded stone light core material is arranged on the steel skeleton and the steel wire net, a cement-based composite anti-permeating protection layer is arranged on the expanded stone light core material, and a main rib protection layer is arranged below the steel skeleton and the steel wire net; the mass area ratio of the steel-skeleton expanded stone pressure relief plate is 40kg/m<2>-50kg/m<2>, the pressure relief threshold value is about 8.0KN/m<2>-10.0KN/m<2>, the expanded stone light core material is a expanded stone core at a material of 350-450 grade, and the thickness of the main rib protection layer is 15-20 mm; the thickness of the cement-based composite anti-permeating protection layer is 1mm-3mm. The steel-skeleton expanded stone pressure relief plate has the characteristics of heat preservation, heat preservation, fire proofing, sound insulation, pressure relief, load-bearing and the like. After being examined by a series of dynamic destruction tests, the pressure relief plate formed by expanded stone has excellent pressure relief performance under a dynamic load action.
Description
Technical field
The utility model relates to building unit technical field, especially relates to the swollen stone pressure relief plate of a kind of steel frame and utilizes its pressure relief.
Background technology
Lightweight pressure release in the past, the frangible roof system of lightweight adopt asbestos shingle, and because it exists harmful, noxious material in process of production, existing country does not allow to use.In engineering, adopting more substitute is at present profiled sheet, sandwiched plate and sunlight board.Profiled sheet, sandwiched plate can meet lightweight requirement, but do not meet fire prevention, durable and frangible requirement.Sunlight board poor durability and can not meet thermal insulation requirement.In Practical Project, without suitable pressure release sheet material, can select like this.
The swollen stone pressure relief plate of steel frame of my company's development and production, there is lightweight, load-bearing, pressure release, thermal insulation, fire prevention, sound insulation, the performance such as impervious, it had both guaranteed the normal function of using of building, met again the frangible requirement of pressure release, filled up the market vacancy, for the design and construction that have pressure release requirement building provide effective material guarantee and technical solution.
Utility model content
The purpose of this utility model is to design the swollen stone pressure relief plate of a kind of novel steel frame, addresses the above problem.
To achieve these goals, the technical solution adopted in the utility model is as follows:
The swollen stone pressure relief plate of a kind of steel frame, comprise steel frame and be laid on the gauze wire cloth on described steel frame, on described steel frame and described gauze wire cloth, be provided with swollen stone light-weight filler, on described swollen stone light-weight filler, be provided with the composite impervious topping of cement based, under described steel frame and described gauze wire cloth, be provided with main tendon protective layer; The mass area ratio of the swollen stone pressure relief plate of described steel frame is 40kg/m
2～50kg/m
2, pressure release threshold value is about 8.0KN/m
2～10.0KN/m
2; Described swollen stone light-weight filler is the swollen stone core of 350 grades～450 grades, and described main tendon protective layer thickness is 15～20mm; The thickness of the composite impervious topping of described cement based is 1mm～3mm.
The composite impervious topping of described cement based is the compound durable coating of high-quality; Described swollen stone light-weight filler is to be coordinated by cement, expanded perlite and water, and the swollen stone light energy conservation material generating through supersolidification, sclerosis, is that a kind of each component has heterogeneous composite material of different nature; It is base phase that cement wherein and expanded perlite can be regarded cement as, two Component Systems that expanded perlite is decentralized photo.
Described swollen stone light-weight filler is the swollen stone core of 400 grades; Described gauze wire cloth is cold-drawn low-carbon wire net, and the net spacing of described cold-drawn low-carbon wire net is not more than 150mm, and lapped length of steel bar is not less than 200mm.
The thickness of the swollen stone pressure relief plate of described steel frame is not less than 100mm.
Utilize according to a pressure relief for the swollen stone pressure relief plate of described steel frame, also comprise agent structure, accessory and main rib or purlin;
Between described gauze wire cloth and described accessory and described agent structure, all should interconnect; Between described accessory and described gauze wire cloth, adopt bidirectional two-sided weldering, be connected firmly;
The connected mode of described gauze wire cloth and described main rib or purlin is, described gauze wire cloth only with described main rib or the purlin firm welding of a side;
The connected node place of the corresponding rod member between described main rib or purlin and described agent structure, the corresponding rod member between described agent structure arranges stiffener and hush panel.
The swollen stone pressure relief plate of steel frame of the present utility model comprises two kinds of templates: 1, for the steel skeleton light-duty plate without purlin system (being called for short light-duty pressure relief plate).It is steel frame and modified cement expansion perlite composition material that light plate is comprised of two parts, claims again swollen stone light energy conservation material (being called for short " swollen stone ") core, and this plate is customized plate (seeing Fig. 1).2, for the swollen stone light energy conservation plate (being called for short swollen slabstone) of purlin system.Swollen slabstone is comprised of " swollen stone " core and cold-drawn low-carbon wire net, and this plate is scale precast plate.
The beneficial effects of the utility model can be summarized as follows:
The swollen stone pressure relief plate of steel frame has the features such as insulation, heat insulation, fire prevention, sound insulation, pressure release, load-bearing.By a series of dynamic failure experimental examination, the pressure relief plate consisting of swollen stone has good relieving characteristics under Under Dynamic Load.
1. lightweight
This series pressure relief plate mass area ratio is 45～50kg/m
2.What meet < < Code for fire protection design of buildings > > GB50016-2006 defined should not exceed 60kg/m as the light roof board of pressure relief facility and the mass area ratio of Light trabs
2with < < industrial explosive material engineering design safety standard > > GB50089-2007, < < fireworks and firecrackers engineering design safety standard > > GB50161-2009, < < gunpowder, explosive, ammunition, in fuse and priming system plant design safety standard > > 1.3 grades, C level factory building should adopt lightweight pressure release roofing, lightweight pressure release roofing, the frangible roofing mass area ratio of lightweight should not exceed 80kg/m
2requirement.
2. frangible
The pressure release threshold value of pressure relief plate is about 8.0KN/m
2～10.0KN/m
2left and right, the overproof pressure of impact that explosion hazard material produces is generally hundreds of kPa and arrives more than several thousand kPas, therefore under positive pressure of shock wave effect, this series pressure relief plate will produce cataclastic failure, cataclastic failure, by producing enough large pressure release area, meets the required maximum pressure release area of factory building, storehouse explosion time that has explosion hazard.
3. avoid the generation of secondary harm
This series pressure relief plate relieving characteristics is good, and positive pressure of shock wave peak value moment is down to zero.
Test agent structure used and experienced seven prototype tests, but there is not obvious distortion in agent structure.The effect of protection agent structure has fully been played in pressure release.
The fragmentation producing is quality controllable.Fragmentation flying speed is less than or equal to the momentum that 12m/s, most of fragment produce and is less than or equal to 80J, to human body, can not produce injury.
Maximum flying distance is no more than 12m.Met the requirement of the minimum allowable range when without barrier between dangerous property building or between dangerous building and other building.
4. easily recover
Swollen slabstone and purlin mode with bolts, under shock wave adopts and does: swollen slabstone cataclastic failure, but purlin and bolt all stand intact, to change plate simple and easy to do, are the outstanding advantages of this series pressure relief plate.
This series pressure relief plate has possessed the condition of design, making, batch production at present, can extensively apply in the engineering of explosion danger, as industries such as Aeronautics and Astronautics, chemical industry, oil, petrochemical industry, weapons, pharmacy.
Accompanying drawing explanation
Fig. 1 is light plate steel skeleton construction sketch;
Fig. 2 is the swollen stone pressure relief plate of steel frame sectional drawing;
Fig. 3 is gauze wire cloth and main rib connected mode schematic diagram;
Fig. 4 is gauze wire cloth and steel purlin bar connected mode schematic diagram;
Fig. 5 is light plate and agent structure connected mode schematic diagram;
Fig. 6 is swollen slabstone and agent structure connected mode schematic diagram.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The swollen stone pressure relief plate of a kind of steel frame as shown in Figures 1 to 6, comprise steel frame 1 and be laid on the gauze wire cloth 2 on described steel frame 1, on described steel frame 1 and described gauze wire cloth 2, be provided with swollen stone light-weight filler 4, on described swollen stone light-weight filler 4, be provided with the composite impervious topping 3 of cement based, under described steel frame 1 and described gauze wire cloth 2, be provided with main tendon protective layer 5; The mass area ratio of the swollen stone pressure relief plate of described steel frame is 40kg/m
2～50kg/m
2, pressure release threshold value is about 8.0KN/m
2～10.0KN/m
2; Described swollen stone light-weight filler 4 is the swollen stone core of 350 grades～450 grades, and described main tendon protective layer 5 thickness are 15～20mm; The thickness of the composite impervious topping 3 of described cement based is 1mm～3mm.
In the embodiment being more preferably, the composite impervious topping 3 of described cement based is the compound durable coating of high-quality; Described swollen stone light-weight filler 4 is to be coordinated by cement, expanded perlite and water, and the swollen stone light energy conservation material generating through supersolidification, sclerosis, is that a kind of each component has heterogeneous composite material of different nature; It is base phase that cement wherein and expanded perlite can be regarded cement as, two Component Systems that expanded perlite is decentralized photo.
In the embodiment being more preferably, described swollen stone light-weight filler 4 is the swollen stone core of 400 grades; Described gauze wire cloth 2 is cold-drawn low-carbon wire net, and the net spacing of described cold-drawn low-carbon wire net is not more than 150mm, and lapped length of steel bar is not less than 200mm.
In the embodiment being more preferably, the thickness of the swollen stone pressure relief plate of described steel frame is not less than 100mm.
Utilize according to a pressure relief for the swollen stone pressure relief plate of described steel frame, also comprise agent structure, accessory 6 and main rib 7 or purlin; Between described gauze wire cloth 2 and described accessory 6 and described agent structure, all should interconnect; Between described accessory 6 and described gauze wire cloth 2, adopt bidirectional two-sided weldering, be connected firmly; Angle steel and described main rib 7 adopt two-sided welding; Described gauze wire cloth 2 with the connected mode of described main rib 7 or purlin is, described gauze wire cloth 2 only with described main rib 7 or the purlin firm welding of a side; The connected node place of the corresponding rod member between described main rib 7 or purlin and described agent structure, the corresponding rod member between described agent structure arranges stiffener and hush panel.
The composite impervious topping 3 of 3 solid cement base of the swollen stone pressure relief plate of steel frame is as shown in Figure 2 the compound durable coating of high-quality, guarantees that member, in the design life of regulation, completes predetermined function under rated condition.400 grades of swollen stone light-weight fillers 4 are to be coordinated by certain match ratio by cement, expanded perlite and water, through supersolidification, sclerosis, generate swollen stone light energy conservation material, and it is that a kind of each component has heterogeneous composite material of different nature.It is base phase that cement expanded perlite can be regarded Behavior of Hardened Cement Paste as, two Component Systems that expanded perlite is decentralized photo.
Pressure relief plate should meet the instructions for use of two kinds of operating modes, i.e. the frangible requirement of the instructions for use of ultimate limit state, serviceability limit state (abbreviation normal condition) and explosion wave Overpressure state (being called for short blast state).This series pressure relief plate, mass area ratio 40kg/m
2～50kg/m
2.And when it being done to the test of single-point concentrated loading, the swollen stone light energy conservation of whole loading procedure material list reveals good power and transmits performance.The pressure release threshold value of pressure relief plate is about 8.0KN/m
2～10.0KN/m
2left and right, under quantitative power effect, core will produce cracked.This shows that the swollen stone pressure relief plate of steel frame has lightweight, power transmission frangible performance under certain load action.
Research thinks, fragment quality, flying speed are the essential elements that produces harm, and the scope of being scattered is to weigh the big or small standard of secondary harm impact.
Prototype board analysis of experiments shows: along with the increase of explosive payload, the flying height of fragment, the quantity of soaring, momentum all increase simultaneously.Along with the flying speed of action time increase, fragment is rising situation, reach certain peak value and then start to reduce.When flying speed is zero, flying distance reaches maximum value.Just slow, flying distance is nearby for, flying speed large in synchronization fragmentation quality.
From high-speed camera, can find out, at synchronization when explosive payload is 2.4kgTNT.Fragment flying speed 12.6m/s, flying height 4.7m, fragment quality 0.389kg, momentum 102.6J.When explosive payload is 3.6kgTNT.Fragment flying speed 12.3m/s, flying height 9.84m, fragment quality 0.28kg, momentum 211.5J.When explosive payload is 4.8kgTNT.Fragment flying speed 28.85m/s, flying height 2.067m, fragment quality 0.137kg, momentum 456.8J.When this fragmentation flying height is 6.16m, fragment becomes dust.
Analysis shows: fragment upwards flies and causes the probability of secondary harm less, and key is quality size, height and the decrease speed of size, pressure release effect, the speed of pressure decreased, the fragmentation of positive pressure of shock wave peak value while being scattered.Test of many times shows that superpressure is about 5-8ms by the peak value vanishing superpressure time used, and superpressure fast-descending can alleviate the damage to agent structure, personnel and equipment greatly.Fragment is in the process of being scattered, and due to air resistance and mutual impact force, fragment will further diminish, and the momentum value producing is generally less than and equals 80J, can not damage human body.
The scope that fragment is scattered and distribution characteristics are divided five kinds of forms: form one, and when fragment maximal side is more than or equal to 15cm, fragment major part is scattered on gauze wire cloth 2, the about 5%-15% of quantity left and right, relevant with explosive payload, explosive payload is little, the quantity of being scattered is just large, and explosive payload is large, is scattered to such an extent that quantity is just little.Form two, the fragment of 50%-60% and powder are scattered in and under plate, on ground, are accumulation state.Form three, the powder of 15%-20%, along being scattered within the scope of building periphery 1.5m-3.0m, is intensive state.Form four, the fragment powder of 10%-15% is scattered within the scope of building 3.0-9.0 rice, is sparse state.Form five, 3%-5%, the dispersion of fragment that the length of side is less than or equal to 30mm drops within the scope of building 10m-12m is scattered.Be spot distribution, i.e. about 4-7 piece in every square metre.
By the test of veneer damage effect and on-the-spot prototype test, the requirement of the swollen stone pressure relief plate structure of steel frame aspect that we are clear and definite:
1. between the steel frame 1 of pressure relief plate, cold-drawn low-carbon wire net 2 and accessory 6 and agent structure, all should interconnect, while avoiding blast to occur, produce secondary harm.
2. between accessory 6 and cold-drawn low-carbon wire net 2, adopt bidirectional two-sided weldering, be connected firmly.
3 cold-drawn low-carbon wire nets 2 are connected way (seeing Fig. 3, Fig. 4) with main rib 7 or purlin, require only with a side main rib 7 or purlin firm welding, must not adopt both sides to weld way simultaneously.If decide like this, for fear of section bar frame and the bottom cold-drawn low-carbon wire net 2 of prototype board, produce larger buckling deformation.
4. main rib 7 or purlin are connected way (seeing Fig. 5, Fig. 6) with agent structure.Wherein, in Fig. 4-6, icon 8 is for increasing the swollen stone light energy conservation of dry material, icon 9 is swollen stone light energy conservation plate, and icon 10 is 50*50*4 backing plate, and icon 11 is M10 bolt, icon 12 is 30*30*3 square steel pipe, icon 13 is steel purlin bar, and icon 14 is steel skeleton light-duty venting of dust explosion roof panel, and icon 15 is agent structure girder steel.
5. the corresponding rod member connected node of main rib 7 and purlin and agent structure place agent structure rod member should be established stiffener and hush panel, improves the local stability of rod member.
6. main tendon protective layer 5 thickness of pressure relief plate are preferably 15～20mm, and this topping mainly rises avoids cold-drawn low-carbon wire net 2 directly to bear the invasion and attack of external environment.
7. pressure relief plate thickness is not less than stressed cold-drawn low-carbon wire net 2 spacing of 100mm. and is not more than 150mm.Lapped length of steel bar is not less than 200mm.
In engineering, general profiled sheet, the sandwiched plate of adopting replaces, but also has the problems such as frangible performance is bad, poor durability at present.
About 11: 30 on the 1st November in 2011, two are loaded the lorry of 72 tons of explosives, near level ground, the stud-farm charge station of In Qiannan Fuquan City, Guizhou Province, blast, and accident causes 8 people's death, and 218 people are injured.After accident occurs, near the on-the-spot quick-fried heart and on a not far hill, be studded with a large amount of profiled sheet relics, size is from tens centimetres to more than one meter having.
From this accident, we can find out, profiled sheet, sandwiched plate are to fly out with larger size fragment pattern under the effect of explosion wave, and fragment edge is sharper, if therefore as the pressure release roofing that has pressure release requirement place, cause larger secondary injury will to scene of the accident periphery personnel.
With the contrast of accident above be, in the explosion test of this steel framework light roofing (being the swollen stone pressure relief plate of steel frame) relieving characteristics research, can clearly see that the rear sheet material of blast is (the seeing Fig. 7, Fig. 8) dispersing with the pattern of fragment, positive pressure of shock wave is larger, and the effect that fragment is pulverized is better, and because fragment is lighter, affected by air resistance larger, according to experimental data, after fragment flight 10m, fragment energy has generally decayed to below 10 joules.At this moment substantially can not cause more serious injury to personnel.
More than by the detailed description of concrete and preferred embodiment the utility model; but those skilled in the art should be understood that; the utility model is not limited to the above embodiment; all within spirit of the present utility model and principle; any modification of doing, be equal to replacement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the swollen stone pressure relief plate of steel frame, it is characterized in that: comprise steel frame and be laid on the gauze wire cloth on described steel frame, on described steel frame and described gauze wire cloth, be provided with swollen stone light-weight filler, on described swollen stone light-weight filler, be provided with the composite impervious topping of cement based, under described steel frame and described gauze wire cloth, be provided with main tendon protective layer; Described main tendon protective layer thickness is 15～20mm; The thickness of the composite impervious topping of described cement based is 1mm～3mm.
2. the swollen stone pressure relief plate of steel frame according to claim 1, is characterized in that: the mass area ratio of the swollen stone pressure relief plate of described steel frame is 40kg/m
2～50kg/m
2, pressure release threshold value is 8.0KN/m
2～10.0KN/m
2; Described swollen stone light-weight filler is the swollen stone core of 350 grades～450 grades.
3. the swollen stone pressure relief plate of steel frame according to claim 2, is characterized in that: the composite impervious topping of described cement based is the compound durable coating of high-quality; Described swollen stone light-weight filler is to be coordinated by cement, expanded perlite and water, and the swollen stone light energy conservation material generating through supersolidification, sclerosis, is that a kind of each component has heterogeneous composite material of different nature; It is base phase that cement wherein and expanded perlite can be regarded cement as, two Component Systems that expanded perlite is decentralized photo.
4. the swollen stone pressure relief plate of steel frame according to claim 2, is characterized in that: described swollen stone light-weight filler is the swollen stone core of 400 grades.
5. the swollen stone pressure relief plate of steel frame according to claim 1, is characterized in that: described gauze wire cloth is cold-drawn low-carbon wire net, the net spacing of described cold-drawn low-carbon wire net is not more than 150mm, and lapped length of steel bar is not less than 200mm.
6. the swollen stone pressure relief plate of steel frame according to claim 1, is characterized in that: the thickness of the swollen stone pressure relief plate of described steel frame is not less than 100mm.
7. utilization, according to a pressure relief for the swollen stone pressure relief plate of steel frame described in claim 1-6, is characterized in that: also comprise agent structure, accessory and main rib or purlin;
Between described gauze wire cloth and described accessory and described agent structure, all should interconnect; Between described accessory and described gauze wire cloth, adopt bidirectional two-sided weldering, be connected firmly;
The connected mode of described gauze wire cloth and described main rib or purlin is, described gauze wire cloth only with described main rib or the purlin firm welding of a side;
The connected node place of the corresponding rod member between described main rib or purlin and described agent structure, the corresponding rod member between described agent structure arranges stiffener and hush panel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656909.3U CN203583770U (en) | 2013-10-23 | 2013-10-23 | Steel-skeleton expanded stone pressure relief plate and pressure relief structure utilizing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656909.3U CN203583770U (en) | 2013-10-23 | 2013-10-23 | Steel-skeleton expanded stone pressure relief plate and pressure relief structure utilizing same |
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|---|---|
| CN203583770U true CN203583770U (en) | 2014-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510652A (en) * | 2013-10-23 | 2014-01-15 | 北京天基新材料股份有限公司 | Steel skeleton expanded rock pressure relief plate and pressure relief structure using same |
-
2013
- 2013-10-23 CN CN201320656909.3U patent/CN203583770U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510652A (en) * | 2013-10-23 | 2014-01-15 | 北京天基新材料股份有限公司 | Steel skeleton expanded rock pressure relief plate and pressure relief structure using same |
| CN103510652B (en) * | 2013-10-23 | 2016-06-29 | 北京天基新材料股份有限公司 | The swollen stone pressure relief plate of steel skeleton and utilize its pressure relief |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20181023 |