CN1408971A - Device and method for preventing damage of steel structure in fire - Google Patents
Device and method for preventing damage of steel structure in fire Download PDFInfo
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- CN1408971A CN1408971A CN 01141420 CN01141420A CN1408971A CN 1408971 A CN1408971 A CN 1408971A CN 01141420 CN01141420 CN 01141420 CN 01141420 A CN01141420 A CN 01141420A CN 1408971 A CN1408971 A CN 1408971A
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Abstract
The present invention discloses one method for preventing damage of steel structure in fire, and it is to utilzie water and vapor to cool steel structure. Water may be stored inside steel structure, and in case of fire, water absorbs heat to evaporate and this prevent overheat of steel structure. Instead, water or vapor may be sprayed to steel structure directly in fire. The said method can avoid overheat of steel structure and prevent building collapse.
Description
The invention belongs to the anti-fire technical field of building.
Steel work is the primary structure form of current super high rise building, has the lighter advantage of the high deadweight of intensity, but that shortcoming is a fire resistance property is poor.The fire prevention measure of steel work mainly is to add the heat-insulating, fire-preventing coating at steel work in the prior art, also has to survey cigarette calorimetric water spray system automatically in building.The function of existing water spray system is fire extinguishing; shortage is to the cooling effect of steel construction piece; these systems in the lighter fire of the short time intensity of a fire effectively, and not strong to the protective capability of steel work when long-time severe fire, can not prevent the destruction of steel work and collapsing of building.
The purpose of this invention is to provide the apparatus and method that a kind of steel work is not destroyed in fire.This device is made up of following parts.
The main load steel structure of building is hollow structure or shaped steel and trussed construction, have at the inside and outside storage water of steel work and to the device of steel construction piece water supply, water spray, spraying steam, be that main liquid or steam is the steel construction piece cooling in order to water during fire, prevent that the steel member temperature is too high.
If steel construction piece hollow outer hermetically-sealed construction, porose water filling, draining, the discharged steam of can be used on the steel work wall.Steel component inside space can Long-term Storage Water, and as the measure of fire preventing, water system can have the water level limitation device during water storage.And can be when fire takes place, whether determine supplementing water according to intensity of a fire size.Also can be when no fire steel component inside storage of water not, and water filling or spray on steel member inwall, outer wall again when fire takes place, water water for cooling.
When if steel construction piece non-tight structure, fire take place by the shower nozzle of aiming at steel work to the steel work spray cooling.
Building can oriented steel work water supply, water spray, drainage system.
Water of the present invention can be tap water, water for fire, secondary recycle-water.In the water rust protection agent, anticorrisive agent, antifreezing agent, extinguishing chemical can be arranged.
Can there be water-fast antirust coat on the steel construction piece surface.
Can there be the tank of manufacturing with meltable impermeable material in steel component inside space, and water is housed in the container.When fire took place, container broke, and water flows out, the heat absorption evaporation, and steam is overflowed and is taken away heat, as the fire prevention cooling measure, guarantees fabric structure safety.
If the steel member is the hollow structure that steel constitute, and is water-tight.Water filling port, outfall, steam (vapor) outlet are arranged on the steel component wall.Outfall, water filling port have valve.The steel component inside can have the material that occupies volume.Space by water and steam is arranged between this material that occupies volume and the steel member inwall enough.When fire takes place, by water filling port water filling in the steel member, the material and space steel member inwall between of current by occupying volume, heat is taken away in heat absorption,, extinguishes assurance fabric structure safety as the fire prevention cooling measure until fire.This existence that occupies the volume material can make water arrive the steel work heated part rapidly, and reduce water injection rate.
Several can be set respectively in a building independently supply water separately and water storage system, during local breaking out of fire, can only supply water, and can utilize the storage water at no fire position to supply water to the fire position to the fire position.Several independently water storage system water storages can be arranged at ordinary times, and other water storage systems are anhydrous in a building.
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Embodiment 1. buildings are steel work, are major bearing structures with steel column, girder steel, and the steel member is the hollow structure that steel constitute, and is water-tight.The inner space communicates between the steel member, but water flowing.Outfall, water filling port, steam (vapor) outlet are arranged on the steel component wall.Outfall, water filling port have valve.Steam (vapor) outlet has the pressure automatic open device.The inside and outside wall of steel member has antirust coat, and outer wall has fire resistant coating.Fill water in the steel member for a long time,, contain rust protection agent, anticorrisive agent, antifreezing agent, extinguishing chemical in the water as fire prevention measure.When fire took place, fire resistant coating at first played the heat-insulating, fire-preventing effect.But the fire time, the fire resistant coating effect weakened when longer, and the steel member is heated, the water heat absorption and the evaporation of steel component inside storage at this moment.Steam (vapor) outlet is opened automatically, and steam is overflowed and taken away heat, guarantees steel member safety.When fire takes place, the water filling port valve opening of post bottom, the cut-in pressure water source, to the water filling of steel component inside, the water source on building top replenishes evaporation loss also to the water filling of steel component inside simultaneously, extinguishes until fire, keeps fabric structure safety.
Embodiment 2. buildings are steel work, are major bearing structures with steel column, girder steel, and the steel member is the hollow structure that steel constitute, and is water-tight.The steel member has fire resistant coating outward, and inside has gusset that hollow structure is cut off, and forms discontinuous space.Each separate space upper and lower porose is water filling port, outfall, steam (vapor) outlet.Each separate space has pipeline to link to each other with valve.Some water space in the steel member is filled water for a long time, and some water space is anhydrous.Contain rust protection agent, anticorrisive agent, antifreezing agent, extinguishing chemical in the water.When fire took place, fire resistant coating at first played the heat-insulating, fire-preventing effect.But the fire time, the fire resistant coating effect weakened when longer, and the steel member is heated, the water heat absorption and the evaporation of steel component inside storage at this moment.Steam (vapor) outlet is opened automatically, and steam is overflowed and taken away heat.During local breaking out of fire, utilize several that be provided with respectively independently to supply water separately and water storage system, can only supply water, and can utilize the storage water at no fire position to supply water to the fire position to the fire position.Extinguish until fire, guarantee steel member safety.
Embodiment 3. buildings are steel work, are major bearing structures with steel column, girder steel, and the steel member is the hollow structure that steel constitute, inside and outside spray-pipe system and the detection control system of being furnished with of steel member.Anhydrous at ordinary times in the steel member, when fire took place, spray-pipe system was sprayed water, is watered and pour water to the steel component inside to the inside and outside wall of the steel member of fire scene and near zone according to the instruction of detection control system.Extinguish until fire, keep fabric structure safety.
Embodiment 4. buildings are steel work, are major bearing structures with steel column, girder steel, and the steel member is that shaped steel and steel truss constitute.Be furnished with spray-pipe system and detection control system near the inside and outside and shaped steel of steel truss.When fire took place, spray-pipe system was sprayed the secondary recycle-water according to the instruction of detection control system to the inside and outside wall of the steel member of fire scene and near zone.Extinguish until fire, keep fabric structure safety.
The beam of embodiment 5. buildings, post, floor all are the cored steel structures, and inside has passage to link to each other, with the outside be watertight structure, and be provided with steam (vapor) outlet.Water be can fill for a long time in the steel member,, rust protection agent, anticorrisive agent, antifreezing agent, extinguishing chemical contained in the water as the fire prevention cooling measure.Its water can circulate by water pump, leads to cold water hot day, and cold day leads to hot water, as the air temperature modification medium.When fire took place, the steel member was heated, and the water heat absorption and the evaporation of steel component inside storage at this moment are simultaneously to steel component inside space make-up water.Steam (vapor) outlet is opened automatically, and steam is overflowed and taken away heat, extinguishes until fire, keeps fabric structure safety.
The beam of embodiment 6. buildings, post, floor all are the cored steel structures, and inside has passage to link to each other, with the outside be watertight structure, and be provided with steam inlet and outlet.Can lead to steam in the steel member, cold day is as the air temperature modification medium.When fire took place, the steel member was heated, and at this moment strengthened the steam flow that enters the steel component inside, and steam (vapor) outlet is opened automatically, and steam is overflowed and taken away heat, as the fire prevention cooling measure, extinguished until fire, guaranteed fabric structure safety.
Embodiment 7. buildings are steel work, are major bearing structures with steel column, girder steel, and the steel member is the hollow structure that steel constitute, and is water-tight.Outfall, steam (vapor) outlet, charge door, discharging opening are arranged on the steel component wall.Outfall has valve.The water-tight vessel that the useful fusible material of steel member internal memory is manufactured is packaged with water in the container.When fire takes place, the container fusing, water flows out, the heat absorption evaporation, steam is overflowed and is taken away heat, as the fire prevention cooling measure, extinguishes until fire, keeps fabric structure safety.Use plastic containers in this example, the container break temperature is 100-150 degree centigrade.
Embodiment 8. buildings are steel work, are major bearing structures with steel column (1,5), girder steel (3,7), and the steel member is the hollow structure that steel constitute, and is water-tight.Water filling port (6), outfall (9,11), steam (vapor) outlet (2,4), charge door (2,4), discharging opening (10,12) are arranged on the steel component wall.Outfall, water filling port have valve.The light ceramic (8) that has uniform grading in the steel member.When fire took place, by water filling port water filling in the steel member, heat was taken away in the current heat absorption, as the fire prevention cooling measure, extinguishes until fire, keeps fabric structure safety.
Embodiment 9. buildings are steel work, are major bearing structures with steel column, girder steel, and the steel member is the hollow structure that steel constitute, and is water-tight.Water filling port, outfall, steam (vapor) outlet are arranged on the steel component wall.Outfall, water filling port have valve.The steel component inside has steel vessel.Enough spaces by water and steam are arranged between container and the steel member inwall.When fire took place, by water filling port water filling in the steel member, current made water arrive the steel work heated part rapidly by the space between container and the steel member inwall, and heat is taken away in heat absorption, as the fire prevention cooling measure, extinguished until fire, guaranteed fabric structure safety.
Embodiment 10. buildings are steel work, and steel construction piece has the water storage overcoat.The cored steel structural member can have interior cover, and the space between interior cover and the steel construction piece inwall is a water space.During no fire, the inside and outside cover capable of storing water of water storage also can be anhydrous at ordinary times, water filling in water jacket during fire.Heat is taken away in the water heat absorption, as the fire prevention cooling measure, extinguishes until fire, guarantees fabric structure safety.
The present invention can be applicable to new building, also can be applicable to the building that has completed for use.
Accompanying drawing is the structural representation of embodiment 8.
Claims (12)
1. one kind is used to prevent construction steel structure by the device that fire destroys, it is characterized in that having at the inside and outside storage water of steel work and to the device of steel construction piece water supply, water spray, spraying steam, and be that main liquid or steam is the steel construction piece cooling in order to water during fire.
2. device as claimed in claim 1 is characterized in that on the steel work wall of hollow water filling port, outfall, steam inlet, steam (vapor) outlet, charge door, discharging opening being arranged.When fire takes place, make the steel work cooling at inner water of steel work or steam.
3. device as claimed in claim 1 or 2 is characterized in that when fire takes place, making the steel work cooling at the inner water storage of the steel work of hollow.
4. device as claimed in claim 1 or 2 is characterized in that being provided with pipeline and shower nozzle in the steel work inside of hollow, when fire takes place, to steel work inwall water spray, makes the steel work cooling.
5. device as claimed in claim 1 or 2 when it is characterized in that fire takes place, makes the steel work cooling in the steel work inside of hollow with steam.
6. device as claimed in claim 1 or 2 is characterized in that there is the water-tight vessel of manufacturing with fusible material in the steel work inside of hollow, is packaged with water in the container, when fire takes place, makes the steel work cooling.
7. device as claimed in claim 1 or 2 is characterized in that having the steel component inside in the steel work inside of hollow can have the material that occupies volume.Have between this material that occupies volume and the steel member inwall enough by the space of water and steam, when fire took place, water or steam were lowered the temperature steel work.
8. device as claimed in claim 1 is characterized in that being provided with aqueduct and shower nozzle in the steel work outside, when fire takes place, directly to the steel work spray cooling.
9. device as claimed in claim 1 is characterized in that being provided with water space in the steel work outside, and when fire took place, water was directly lowered the temperature to steel work.
10. one kind is used to prevent construction steel structure by the method that fire destroys, and when it is characterized in that fire takes place, water or steam make the steel work cooling.
11. method as claimed in claim 10 is when is characterized in that not breaking out of fire, both at the inner directly water storage of steel work or use the container water storage.During breaking out of fire, make the steel work cooling with the water that stores.
12. method as claimed in claim 10, when it is characterized in that breaking out of fire, to water filling of steel work inner space or steam, perhaps to inside and outside water spray of steel work, water, make steel work cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01141420 CN1408971A (en) | 2001-09-24 | 2001-09-24 | Device and method for preventing damage of steel structure in fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01141420 CN1408971A (en) | 2001-09-24 | 2001-09-24 | Device and method for preventing damage of steel structure in fire |
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| Publication Number | Publication Date |
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| CN1408971A true CN1408971A (en) | 2003-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01141420 Pending CN1408971A (en) | 2001-09-24 | 2001-09-24 | Device and method for preventing damage of steel structure in fire |
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| CN (1) | CN1408971A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505838A (en) * | 2012-06-19 | 2014-01-15 | 深圳市博德维建筑技术有限公司 | Firefighting spray apparatus for protecting air-supported structure bottom film |
| CN108714286A (en) * | 2018-07-31 | 2018-10-30 | 山东大学 | A kind of therrmodynamic system for avoiding steel construction mansion from burning down and its working method |
| CN110013624A (en) * | 2018-01-10 | 2019-07-16 | 万平华 | Steel construction super high rise building fireproof effective ways |
| CN111101631A (en) * | 2019-12-27 | 2020-05-05 | 甬港现代工程有限公司 | Building roof temperature control device |
| CN113216431A (en) * | 2021-04-19 | 2021-08-06 | 重庆大学 | Frame atress component fire resistive construction |
| CN113235819A (en) * | 2021-04-19 | 2021-08-10 | 重庆大学 | Fire-proof structure of steel structure hollow stress component |
| CN113374102A (en) * | 2021-05-18 | 2021-09-10 | 徐州腾鲁重工科技有限公司 | Building fire prevention steel construction |
-
2001
- 2001-09-24 CN CN 01141420 patent/CN1408971A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505838A (en) * | 2012-06-19 | 2014-01-15 | 深圳市博德维建筑技术有限公司 | Firefighting spray apparatus for protecting air-supported structure bottom film |
| CN103505838B (en) * | 2012-06-19 | 2016-04-20 | 深圳市博德维环境技术股份有限公司 | The fire-fighting spray device of protection pneumatic membrane building bottom film |
| CN110013624A (en) * | 2018-01-10 | 2019-07-16 | 万平华 | Steel construction super high rise building fireproof effective ways |
| CN108714286A (en) * | 2018-07-31 | 2018-10-30 | 山东大学 | A kind of therrmodynamic system for avoiding steel construction mansion from burning down and its working method |
| CN111101631A (en) * | 2019-12-27 | 2020-05-05 | 甬港现代工程有限公司 | Building roof temperature control device |
| CN113216431A (en) * | 2021-04-19 | 2021-08-06 | 重庆大学 | Frame atress component fire resistive construction |
| CN113235819A (en) * | 2021-04-19 | 2021-08-10 | 重庆大学 | Fire-proof structure of steel structure hollow stress component |
| CN113374102A (en) * | 2021-05-18 | 2021-09-10 | 徐州腾鲁重工科技有限公司 | Building fire prevention steel construction |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |