CN201335781Y - Fire resistance testing device for monolithic building structure - Google Patents
Fire resistance testing device for monolithic building structure Download PDFInfo
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- CN201335781Y CN201335781Y CNU2009200990519U CN200920099051U CN201335781Y CN 201335781 Y CN201335781 Y CN 201335781Y CN U2009200990519 U CNU2009200990519 U CN U2009200990519U CN 200920099051 U CN200920099051 U CN 200920099051U CN 201335781 Y CN201335781 Y CN 201335781Y
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- building structure
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Abstract
The utility model provides a fire resistance testing device for a monolithic building structure. The fire resistance testing device comprises an equivalent loading object, a movable assembled furnace body and a controlling and collecting part, wherein, the equivalent loading object is arranged in a building and is equivalent to a load used in a building design; the movable assembled furnace body comprises a furnace wall, a combustor, a fuel pipeline, a combustion-supporting air pipeline and a combustion-supporting blower; the combustor is mounted on the furnace wall; the fuel pipeline and the combustion-supporting air pipeline are connected with the combustor; the combustion-supporting air pipeline is connected with the combustion-supporting blower; the controlling and collecting part comprises a main control machine, an input-output device, a thermocouple and a displacement transducer; and the main control machine is connected with the combustor, the thermocouple and the displacement transducer. The utility model is suitable for the research on fire behavior of the monolithic building structure, and can be used for the research on the influence on structural fire resistant performance by mutual constraint among monolithic structural components through the research on the fire behavior of the monolithic structure.
Description
(1) technical field
The utility model relates to the building structure technical field of preventing and reducing natural disasters, and specifically is applicable to building structure Study on Fire Resistance field at high temperature.
(2) background technology
The used Building Fire Protection design specifications of China is to the fire resistance rating of buildings and use the requirement of character, inner fire fighting device to make regulation one by one, and these work are mainly finished by the architect, and the structure behavior during to its fire etc. will not be paid close attention to.The fire resistance rating of building element mainly is that the fire testing according to standard records, promptly in intensification condition, pressure condition, the loading environment of regulation, be subjected to detect members such as wall, post, beam, floor and can satisfy requirements such as stability, integrality, thermal insulation under fiery condition etc. requires.
In fact, building structure is made of numerous members, between the member be interconnect, interactional.And stressing conditions, the boundary condition of member are different fully in the test specimen in the standard fire test and the practical structures, and particularly integrally-built other parts are to the effect of contraction of each member.After " 9.11 ", for getting World Trade Organization's mansion mechanism of collapsing clear, Unite States Standard (USS) Institute for Research and Technology is entrusted by U.S. government, horizontal member, the vertical member of organizing the related personnel that tame structure fire test chambers 24 are in the world finished have carried out analysis-by-synthesis, and find that subject matters that these tests exist have: 1. single member is subjected to size restrictions; 2. can't determine the connection influence between member; 3. test specimen promptly stops test after reaching specified fire endurance, generally is difficult to reach component damage; 4. test used temperature time curve and be typical curve, be not inconsistent with actual fire condition.
The structure effect that fire test reflected of single member has significant limitation, and the structural response when having hindered people correctly to be familiar with the one-piece construction fire can not carry out rationally anti-fire design to structure; Under current specifications instructs, carried out a large amount of single member fire tests, but these tests can not reflect the connection influence between member, how to hold water and utilize these test figures, seem particularly important.The utility model overall building structure anti-fire experimental technique and device are applicable to one-piece construction full size fire test, have remedied the shortcoming that single member fire test can not effecting reaction one-piece construction effect.
(3) utility model content
The purpose of this utility model is to propose a kind of building integral structure fire behavioral study that is applicable to, by research, can study the overall building structure anti-fire test unit that retrains mutually between the one-piece construction member the structure fire-resistant performance impact to the behavior of one-piece construction fire.
The purpose of this utility model is achieved in that it comprises that the equivalent with the equivalence of buildings design working load that is arranged in the buildings adds body of heater, the control collecting part composition of loading and removable assembly unit, removable assembly unit body of heater comprises furnace wall, burner, fuel channel, combustion air pipeline and combustion fan, burner is installed on the furnace wall, fuel channel, combustion air pipeline connect burner, and the combustion air pipeline connects combustion fan; The control collecting part comprises main control system, input-output device, thermopair and displacement transducer, and main control system is connected with burner, thermopair, displacement transducer.
The utility model also has some technical characterictics like this:
1, described burner comprises the even number burner, and symmetry is installed on the furnace wall;
2, described thermopair and displacement transducer are located at member middle part, end.
The utility model principle of work is: build the monolithic architecture thing by existing design standards, apply the design working load to buildings, when research a certain member of monolithic architecture thing or a certain partial component fire resistance, surround this member or this partial component formation body of heater with removable furnace wall, calculate needs burner quantity according to heat transfer principle, symmetry is installed on the removable furnace wall, and temperature is even in the body of heater that guarantees to surround, member and furnace wall keep certain distance, guarantee that flame can not contact member.Waiting to study layout thermopair and bigger installation position, the position displacement sensor of expectation distortion on the member, and beyond the body of heater that surrounds with member that member to be studied links to each other on the installation position displacement sensor, with cable main control system and burner, thermopair, displacement transducer etc. are coupled together.By burner combustion fuel, in the zone that surrounds, heat up.Wait the fire resistance of studying monolithic architecture structure and member by acquisition software collection research member and the outer deformation of members that links to each other with the research member of high-temperature area, temperature.
The utility model comprises some technical characterstics like this:
1, described overall building structure anti-fire experimental technique and the fire resistance of installing the zone of researching high-temperature not only member have also been studied non high temperature zone member and the influence each other of high-temperature area member, i.e. group effect.
2, described monolithic architecture thing can be the structure that various materials such as steel construction, xoncrete structure are built, and also can be low layer, multilayer, high building structure.
3, to add loading can be actual facility in the buildings to the equivalent of described buildings design working load equivalence, also can be that the iron block, sandstone etc. of equivalence add object carrier.
4, the described intensification zone that surrounds can surround different goals in research such as a pillar, body of wall, room, a Pin framework.
5, the member of described zonule heats up, and can be assembled into body of heater with mobilizable furnace wall and heat up by burner combustion fuel, and big zone can adopt grillage to heat up.
The utility model proposes a kind of experimental technique that is applicable to building integral structure fire behavioral study, by research to the behavior of one-piece construction fire, can study and retrain mutually between the one-piece construction member the structure fire-resistant Effect on Performance, test findings can contrast with the fire test result of a large amount of single members that carried out, thereby reaches the purpose of the existing test findings of more efficient use.
(4) description of drawings
Fig. 1 is for to build three one storey building floor map according to the utility model;
Fig. 2 is certain the beam trial furnace body position synoptic diagram that carries out in three layers;
Fig. 3 is provided with position view for body of heater facade and some instrument.
(5) embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
The present embodiment device comprises: monolithic architecture thing, the body of heater etc., the control collecting part that add loading, removable assembly unit with the equivalent of buildings design working load equivalence are formed.The removable assembly unit body of heater of chatting comprises furnace wall 1, furnace bottom intermediate support 10, burner 2, fuel channel 3, combustion air pipeline 4, combustion fan 5 etc.; The control collecting part comprises main control system (internal control program), reaches input-output device, displacement transducer 9, thermopair 8 etc.Comburant can also be a grillage.Displacement transducer can be located at any position that member middle part, end etc. need.
Present embodiment is implemented according to the following steps:
(1) builds the building integral structure that to test.
(2) layout is provided with working load, makes the realistic operating position of test building integral.
(3) in the building integral building according to test objective, to wherein partial component can be single post, beam 6, floor 7, also can be member such as the continuous beam, plate of contact, or even a certain interval of floor, and even whole floor carries out fire test, heating region can heat up by constructing body of heater, also can adopt grillage to heat up.
Concrete operations are as follows:
(1) according to research purpose: Fire-Resistance of Steel Structures and failure mode, build three layers of building integral structure H structural steel frame of test usefulness, building integral is that 3X3 strides, span is 4.5m, floor height 3.0m.As Fig. 1 is integral experiment building planimetric map.
(2) adopt sand pocket to add loading, apply the design working load as equivalent.
(3) carried out a series of fire test in steel frame, wherein Fig. 2, Fig. 3 are certain beam test furnace binding of carrying out in three layers, and wherein for fuel saving, bottom of furnace body is maked somebody a mere figurehead one section height.
Find that by test member fire resistance in one-piece construction is high more a lot of than single member, promptly much design has the conclusion of actual directive significance to structure fire-resistant for structural entity effectiveness etc., and has reached a large amount of reliable test data.
Claims (3)
1, a kind of overall building structure anti-fire test unit, it is characterized in that it comprises that the equivalent with the equivalence of buildings design working load that is arranged in the buildings adds the body of heater and the control collecting part of loading, removable assembly unit, removable assembly unit body of heater comprises furnace wall, burner, fuel channel, combustion air pipeline and combustion fan, burner is installed on the furnace wall, fuel channel, combustion air pipeline connect burner, and the combustion air pipeline connects combustion fan; The control collecting part comprises main control system, input-output device, thermopair and displacement transducer, and main control system is connected with burner, thermopair, displacement transducer.
2, overall building structure anti-fire test unit according to claim 1 is characterized in that described burner comprises the even number burner, and symmetry is installed on the furnace wall.
3, overall building structure anti-fire test unit according to claim 1 and 2 is characterized in that described thermopair and displacement transducer are located at member middle part, end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200990519U CN201335781Y (en) | 2009-01-24 | 2009-01-24 | Fire resistance testing device for monolithic building structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200990519U CN201335781Y (en) | 2009-01-24 | 2009-01-24 | Fire resistance testing device for monolithic building structure |
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| Publication Number | Publication Date |
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| CN201335781Y true CN201335781Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200990519U Expired - Fee Related CN201335781Y (en) | 2009-01-24 | 2009-01-24 | Fire resistance testing device for monolithic building structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297863A (en) * | 2011-05-17 | 2011-12-28 | 同济大学 | Method for evaluating smoke suppression performance of flame retardant asphalt mixture |
| CN109557132A (en) * | 2019-01-15 | 2019-04-02 | 中国矿业大学 | A kind of anti-fire test device of steel structure node |
-
2009
- 2009-01-24 CN CNU2009200990519U patent/CN201335781Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297863A (en) * | 2011-05-17 | 2011-12-28 | 同济大学 | Method for evaluating smoke suppression performance of flame retardant asphalt mixture |
| CN102297863B (en) * | 2011-05-17 | 2013-05-01 | 同济大学 | Method for evaluating smoke suppression performance of flame retardant asphalt mixture |
| CN109557132A (en) * | 2019-01-15 | 2019-04-02 | 中国矿业大学 | A kind of anti-fire test device of steel structure node |
| CN109557132B (en) * | 2019-01-15 | 2021-02-26 | 中国矿业大学 | Fire resistance test device of steel structure node |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20100224 |