Protivopozharnyie doors “Photothat Stopfaer”
On the international norms all buildings at which at least one floor lays out of approachibility of a ladder of a fire-engine, are considered high-rise and concern group «special buildings».
As evacuation at a fire at the big heights through window apertures is impossible owing to absence of corresponding saving engineering, it is necessary to provide fast access to evakuatsionnyim to ways in a building. In high-rise buildings the basic ways of evacuation are ladders which allow people to leave outside. Ladders in a combination to fre lifts represent also safe ways of access of firemen and salvors to an ignition place. Besides, for prevention of development of a fire on a facade of a high-rise building of a window, since 25 floors, should be fire-prevention.
Evacuation ways include all necessary corridors and ladder marches, and also various transitions and platforms which in case of a fire should supply sufficient fire resistance. So protections of ways of evacuation should have fire resistance not less EI 45, and designs of filling of apertures of fire-prevention barriers – E 30, E 60 for external (windows, stained-glass windows) and not less EI 30 for internal (fire-prevention doors and fire-prevention partitions).
Requests to evakuatsionnyim to ways and exits are regulated GOST 12.1.004"Fire safety. The general requests», PPB-01-03 «Fire prevention rules in the Russian Federation», SNiP 21-01-97 «Fire safety of buildings and structures», and also specialised building norms and rules.
Employees VNIIPO the Ministry of Emergency Measures of Russia under the guidance of professor I.A.Bolodjana have developed section "Fire-prevention actions" for MGSN 4.04-94"Multipurpose high-rise buildings and complexes". The section contains obligatory requests to specifications on designing of fire-prevention protection of multipurpose high-rise buildings and complexes in height from 50 m, and in the presence of an inhabited part - from 75 m.
Aluminium for vyisotok – pro and contra
In connection with expansion in Moscow high-rise building it is necessary to tell, as a bearing skeleton in front systems aluminium profiles which at a fire lose the constructive appointment (owing to low temperature of fusion of aluminium) are often applied, that can lead to destruction of designs of a facade, creating serious danger to people, including firemen, falling of elements of designs. Such danger was demonstrated by the fire which has occurred on May, 30th 2006g. In capital of Kazakhstan to Astana in the highest (130m) a city office building. The roof and a spike as a result have completely burnt out, the flame destroys aluminium facing about 15 floors on one party and 32 – on other. The fire was accompanied by scattering of splinters of a facade and glass.
What do we do for increase of fire resistance of aluminium?
Thereupon we wish to declare, that experts of company "Photothat" have found a non-standard method of giving of fire resistance to aluminium profiles by filling of their central chambers with various heat-resistant and heat-absorbing compositions with special reinforcing. Many our technical decisions are patented (the patent #2146752, the patent #2217570). As a result aluminium bearing profiles acquire not only necessary fire resistance, but also additional rigidity, saving thus all merits of aluminium: firmness to corrosion, aesthetic appearance, small width of a profile.
Fire-prevention doors EI-60
Such fillers, having necessary physicomechanical properties, compensate the bending moments arising at unilateral heating of a design that leads to its minimum deflections. Besides, small deflections of a front profile allow to establish in fire-prevention designs double-glazed windows big (over 2 metres) the sizes.
In quality svetoprozrachnogo fillings of designs we usually use fire-resistant composite glasses of mark «M Board» and double-glazed windows on their basis with fine optical properties of own production. At will of the customer in items import glasses of leading world manufacturers – companies "SHOTT" (Germany), "PILKINGTON" (Great Britain), "Glaverbel" (Belgium) or "GlasTroesch" (Switzerland) can be established.
Let’s consider more in detail, that from myself represents a fire-resistant glass block. It is a design consisting of 2 or more layers float – the glasses, divided special gelevoy a composition.
The essence of the mechanism of maintenance of fire resistance consists in the following:
At fire effect on one of the glass block parties there is a glass warming up. At distemper-round 200 eS foaming of a polymeric composition, its turbidity, thus, in case of formation in the first glass of cracks they germetiziruyutsya begins a foaming layer (at heating its volume increases at 5-10 time). The formed made foam layer cuts thermal vozdejst-vie on the second glass.
Tests of a fire-prevention door by fire resistance EI-60
The beginning of tests – 6th minute.
Glass turbidity.
55 minute of tests.
Formation koksovogo a layer.
At the further warming up polymeric layers on the second and the subsequent glasses start to foam, protecting from thermal effect the third and the subsequent glasses. At the expense of it the second glass and the subsequent glasses, not receiving thermal energy, do not fall and cut a thermal stream and a smoke, protecting people and the property, being for a glass block, from fire effect.
Besides, at our fire-prevention doors can, after corresponding fire tests, to be established and any other fire-resistant glasses supplying the necessary degree of protection. So, recently there have passed tests of window E 30 on the basis of a warm profile of a series 770 VSMPO and two-chamber steklopake with glass "Piran", doors EI 30 and EI 60 with cteklom "Piranova" firms "SHOTT", with glass Fireswiss Foam firms "GlasTroesch" (Switzerland), and also tests of fire-prevention window E 90 with pozharostoykim glass Fireswiss Foam on the basis of a steel skeleton. Certified tests of a fire-prevention door and a partition fire resistance EI 90 as soon as possible are coming.
Fire-prevention designs of Photothat stopfayertm
Fire-prevention designs of Photothat stopfayer? Are recommended to application by GOSSTROY of Russia (the letter #LB-6475/14 from 27.11.01) and are already widely used at erection of buildings as in a variant of internal partitions and doors, and in external osteklenii buildings.
Open Company "Photothat" manufactures fire-prevention doors of various updatings – odnopolnyie and dvupolnyie, continuous and with ostekleniem, and also with built in a double-glazed window of the jalousie, completed with locks and dovodchikami, and also system "Antipanic" which is an obligatory condition of a complete set of doors evakuatsionnyih exits.
All fire-prevention designs at a working out stage have passed numerous tests in VNIIPO the Ministry of Emergency Measures of the Russian Federation. Manufactured fire-prevention windows and doors have certificates of fire safety and the conformity issued by body on certification «POZHTEST» FGU VNIIPO the Ministry of Emergency Measures of Russia.
Maintenance of a standard thermal mode of unilateral heating of the sample at tests allows to measure fire resistance of designs in minutes. At tests time before loss of integrity of a design () and its losses teploizoliruyuschey abilities (I) is defined.
Tests of fire-prevention doors for fire resistance are conducted according to «the Time technique of tests for fire resistance svetoprozrachnyih building designs» (M, VNII-ON, 1996). This technique provides unilateral thermal effect on the sample of a design on standard temperature range according to item 6 of GOST 30247.
Our fire-prevention doors are established in set of buildings more, than in 20 cities of Russia, including, in the House of the government of the Russian Federation, buildings of the Expocentre, many branches of the Savings Bank, Alpha bank, MDM-bank, buildings of Ministry of Railways, the Russian Open Society "United Power Systems", at airports "Sheremetyevo-1", "Sheremetyevo-2", in Botkinsky hospital, in the Ice palace on the Hodynsky field, in GKB-1, at many schools of of Moscow.
In summary it would be desirable to tell, besides maintenance of a corresponding limit of fire resistance protivo-firemen of a design of Open Company "Photothat" grant architects huge possibilities at the decision of registration of a facade of a building and an interior of premises. To satisfy high trebovani consumers, Open Company "Photothat" constantly introduces into production the newest technical decisions in the field of fire resistance and operational reliability of the items.
Protivopozharnyie doors "Photothat Stopfaer"On the international norms all buildings at which at least one floor lays out of approachibility of a ladder of a fire-engine, are considered high-rise and concern group «special buildings».As evacuation at a fire at the big heights through window apertures is impossible owing to absence of corresponding saving engineering, it is necessary to provide fast access to evakuatsionnyim to...
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Protivopozharnyie doors: only without a panic! ...