CN106813936A - A kind of horizontal constructions component fire resistance test loading method and loading device - Google Patents
A kind of horizontal constructions component fire resistance test loading method and loading device Download PDFInfo
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- CN106813936A CN106813936A CN201710187346.0A CN201710187346A CN106813936A CN 106813936 A CN106813936 A CN 106813936A CN 201710187346 A CN201710187346 A CN 201710187346A CN 106813936 A CN106813936 A CN 106813936A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of horizontal constructions component fire resistance test loading method and attachment means, the attachment means include being fixed on pressure-bearing column, the pressure-bearing pipe support for fixing test sample, pressure-bearing crossbeam, a plurality of steel frame, Hydraulic Station, controller and the data processing equipment at trial furnace length direction two ends, and the pressure-bearing crossbeam and pressure-bearing pipe support are installed on pressure-bearing column from top to bottom；A plurality of steel frame is installed on pressure-bearing crossbeam by the first sliding block, and every steel frame is provided with the hydraulic cylinder that friend's multiple independent control is installed by the second sliding block；The hydraulic cylinder is connected by fluid pressure line with Hydraulic Station, and the Hydraulic Station is connected with controller, and the data processing equipment is connected by converter with controller.The evenly load requirement of full-scale sample can be realized using horizontal constructions component fire resistance test loading method of the invention and attachment means, for operation provides facility on test sample lifting and trial furnace.
Description
Technical field
The present invention relates to building element fire resistance test technology, and in particular to a kind of horizontal constructions component fire resistance test loading side
Method and loading device.
Background technology
Fire resistance test is to detect a kind of test method of building element fire resistance by way of simulating natural fire,
By carrying out fire endurance experiment, the fire resistance of test specimen can be correctly judged, so as to be that architectural design and examination are provided
The data of directiveness, so as to improve the fire safety of building.
For floor, roof, the horizontal constructions component of the load-bearing such as beam not only plays the work of horizontal subdivision in building structure
With being more importantly subject to the effect of structure vertical load, therefore sentencing for Horizontal load-bearing partition member fire resistance
In fixing then, it is stipulated that carry out fire resistance test after applying constant finder charge to test specimen, and to its bearing capacity, fire integrity
And fire insulation measures judgement.And if " bearing capacity " of regulation test specimen is undesirable, automatically considers
" thermal insulation " and " integrality " of test specimen is undesirable.As can be seen here, for load-bearing horizontal constructions component, it is in fire resisting
Bearing capacity in experiment is mostly important.Therefore, how accurately to apply design load, and ensure in process of the test it is constant not
Become particularly important for the judgement of test specimen weight capacity.
According to the national Specification that component fire endurance is tested, experiment loading unit can be using hydraulic pressure, machinery or weight.
At present, at home and abroad most laboratories, mostly all using weight loading by the way of, that is, in test specimen back of the body fire dough figurine work heap
The precast concrete block or metal derby of product rated weight realize design evenly load.And due to standard regulation, loading device with
The area summation of the contact point of surface of test piece is not to be exceeded the 10% of horizontal surface of test piece product, therefore, generally using a large amount of
Weight stack mode high is realized.Not only experimental rig is original for such load mode, weight stack is high install it is time-consuming and
And the dangerous that collapse, when test specimen produces moderate finite deformation in test process, the weight of accumulation is easy to follow the change of test specimen
There is position movement in shape, it is possible to cause local load；If component collapses, piling up weight more can directly fall into examination
Test in stove, cause the destruction of test apparatus.Accordingly, it is desirable to provide a kind of flexible for installation convenient, it is small with test specimen contact area and
Safely and effectively mechanization loading method and device.
In addition, there is some experiment mechanisms then by being fixed on the reaction frame on ground and utilizing installed in reaction frame upper lateral
The fiery face of the jack pair test specimen back of the body of beam is further applied load.The disadvantage is that, this kind of loading device is usually fixed structure, it is merely able to volume
The fixed position of the component of sizing is loaded, and is difficult to complete simulation evenly load for the test specimen of off-standard size
It is required that.And substantial amounts of reaction frame and jack, and numerous Pipeline arrangements, fixed meeting are used on hydraulic test stove
Be greatly reduced the operable space above burner hearth, be test specimen lifting and stove on operation bring inconvenience.Cause
This, designs a set of moveable, and can be adapted to full-scale Horizontal load-bearing building element fire resistance experiment use and load perseverance
Fixed loading method and device, the assessment for the fire resistance of different test specimens is particularly significant.
The content of the invention
The invention aims to overcome the shortcomings of that above prior art is present, there is provided a kind of horizontal constructions component is resistance to
Fire experiment loading method.The horizontal constructions component fire resistance test loading method can be realized during fire resistance test to different chis
Very little horizontal constructions component is continuously applied constant load, so as to the bearing capacity to horizontal constructions component carries out effective evaluation.
Meanwhile, present invention also offers a kind of loading device for realizing above-mentioned horizontal constructions component fire resistance test loading method.
The purpose of the present invention is realized by following technical scheme：This horizontal constructions component fire resistance test loading method, bag
Include following steps：
1) supporting construction is installed：At trial furnace length direction two ends, pressure-bearing column, the length direction two of pressure-bearing pipe support are set
End is connected with pressure-bearing column, and the width two ends of pressure-bearing pipe support are connected with trial furnace；
2) installation of loaded load device：Test specimen is attached on horizontal fire test furnace, by loop wheel machine by hydraulic pressure
Loading system pressure-bearing crossbeam hangs trial furnace top, and the two ends of pressure-bearing crossbeam are separately fixed at positioned at trial furnace length direction
The pressure-bearing column upper end at two ends；Multiple steel frames are installed on pressure-bearing crossbeam by the first sliding block, and each steel frame passes through
Second sliding block is connected with the hydraulic cylinder of multiple independent controls；
3) imposed load：The position of each hydraulic cylinder is adjusted by the first sliding block and the second sliding block, each hydraulic cylinder passes through
Fluid pressure line is connected with Hydraulic Station；Now, controller sets target oil pressure value, and open Hydraulic Station and pressurizeed；
4) fire resistance test：Treat that the piston rod of all hydraulic cylinders for using all smoothly stretches out, the lower end of piston rod holds out against experiment
Sample, and capacity value reach it is constant after, trial furnace start heated up by standard temperature rise curve, heated with to test specimen
In temperature-rise period, the oil pressure Value Data of Hydraulic Station is delivered to data processing equipment to test specimen by converter, to be divided
Analysis and record；
5) experiment is stopped：Trial furnace stops heating, and the piston rod full retraction of hydraulic cylinder resets, and closes fluid pressure line, and
Unclamp the snap joint connected between hydraulic cylinder and hydraulic pressure road pipe；Finally by loop wheel machine by loaded load device, and remove test
Sample.
Preferably, in step 3) in, the deviation of controller sets target oil pressure value is less than or equal to 2.5%.
Preferably, in step 4) in, before trial furnace starts, the time of Hydraulic Station pressurization is more than or equal to 15min.
Preferably, in step 4) in, the oil pressure Value Data of Hydraulic Station at interval of transmission primaries in 30s~60s to data at
Reason device.
It is a kind of to realize the loading device of above-mentioned horizontal constructions component fire resistance test loading method, including it is fixed on trial furnace
The pressure-bearing column at length direction two ends, pressure-bearing pipe support, pressure-bearing crossbeam, multiple steel frames, Hydraulic Station, controller and data processing
Device, the pressure-bearing crossbeam is installed on the upper end of pressure-bearing column, length direction two ends and the pressure-bearing column of the pressure-bearing pipe support
Middle part connects, and the width two ends of the pressure-bearing pipe support are connected with trial furnace；The upper end of multiple steel frames passes through first
Sliding block is installed on pressure-bearing crossbeam, and the lower end of each steel frame is provided with multiple second sliding blocks, and each second sliding block is provided with solely
The hydraulic cylinder of vertical control；The hydraulic cylinder is connected by fluid pressure line with Hydraulic Station, and the Hydraulic Station is connected with controller, described
Data processing equipment is connected by converter with controller.
Preferably, the piston-rod lower end of the hydraulic cylinder is provided with Universal stand, and this Universal stand passes through bearing and piston rod
Connection, and padded added with high temperature resistant pad between the support foot plate and bearing of Universal stand.
Preferably, the steel frame is orthogonal with pressure-bearing crossbeam；The two ends of the steel frame are supported by pole
In the two ends of pressure-bearing pipe support width.
Preferably, the fluid pressure line includes that main oil feed line, main the return line branch equal with steel frame quantity are supplied
Oil pipe line and the branch return line equal with steel frame quantity, each bar branch oil feed line are installed on the one of corresponding steel frame
Side, each bar branch return line is installed on the opposite side of corresponding steel frame；All of branch oil feed line passes through main fuel feed pump
Road is connected with the outlet of Hydraulic Station, and all of branch return line is connected by main return line with the entrance of Hydraulic Station；It is located at
The entrance of the multiple hydraulic cylinders below every steel frame is connected by corresponding ball valve switch with corresponding branch oil feed line respectively
Connect；The outlet of the multiple hydraulic cylinders below every steel frame is respectively by corresponding ball valve switch and corresponding branch oil return
Pipeline is connected.
Preferably, first sliding block includes upper slide, lower skateboard and Duo Gen connecting screw rods, the upper slide and lower skateboard
It is respectively above pressure-bearing crossbeam and following, and connected by connecting screw rod between the upper slide and lower skateboard, the steel
It is connected with lower skateboard by welding above structure-steel framing.
Preferably, second sliding block includes slide body and multiple clamping screws, and the slide body upper end is provided with inverted T-shaped
Groove, the slide body is connected by T-slot with the lower slide of steel frame；The hydraulic cylinder is installed on slide body by latch
Lower end；After hydraulic cylinder is had good positioning, the slide body is locked with steel frame by clamping screw and is connected.
The present invention has the following advantages relative to prior art：
1st, the present invention obviates the fixed form of gantry frame type, and pressure-bearing column and pressure-bearing pipe are increased using in trial furnace periphery
Frame constitutes supporting construction, and the loaded load dress that pressure-bearing pipe support, pressure-bearing crossbeam, a plurality of steel frame and multiple hydraulic cylinders are constituted
Put and be installed on supporting construction, this makes loading device be separated with trial furnace, and is connected with Hydraulic Station with the use of hydraulic quick coupling,
The mobility of large hydraulic loading system is realized, is installed simple and quick and is saved manpower, and can greatly save on body of heater
Side space, for operation provides facility on test sample lifting and stove.
2nd, each hydraulic cylinder in the present invention can carry out vertical and horizontal by corresponding first sliding block and the second sliding block
It is mobile, each hydraulic cylinder can independent loads possibility, can at any time increase and decrease loading points for various sizes of test sample
Amount, meets the requirement that uniform load or load are simulated to test sample.
3rd, the hydraulic control system that the present invention is used can be the ability to easily control adding for single hydraulic cylinder by adjusting target oil pressure value
Carrying capacity, the payload values high precision obtained by conversion, the characteristic for coordinating hydraulic loaded servo-actuated, it is ensured that the pressure-bearing pipe during testing
Frame, pressure-bearing crossbeam, a plurality of steel frame, multiple hydraulic cylinders and Hydraulic Station etc. constitute loading system can follow test sample to deform speed
Degree is responded rapidly to, and keeps the constant of load.Meanwhile, more oil pressure numerical value can be converted into by data signal pair by interface convertor and added
Carrying capacity carries out real time record and preserves analysis, ensure that the accuracy of result of the test.
Brief description of the drawings
Fig. 1 is the structural representation of horizontal constructions component fire resistance test loading method of the invention.
Fig. 2 is the sectional view in A-A directions in Fig. 1.
Fig. 3 is the sectional view in B-B directions in Fig. 1.
Fig. 4 is the attachment structure schematic diagram of hydraulic cylinder of the invention and the second sliding block.
Fig. 5 is fluid pressure line schematic diagram of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
A kind of horizontal constructions component fire resistance test loading method, comprises the following steps：
1) supporting construction is installed：At trial furnace length direction two ends, pressure-bearing column, the length direction two of pressure-bearing pipe support are set
End is connected with pressure-bearing column, and the width two ends of pressure-bearing pipe support are connected with trial furnace；
2) installation of loaded load device：Test specimen is attached on horizontal fire test furnace, by loop wheel machine by hydraulic pressure
Loading system pressure-bearing crossbeam hangs trial furnace top, and the two ends of pressure-bearing crossbeam are separately fixed at positioned at trial furnace length direction
The pressure-bearing column upper end at two ends；Multiple steel frames are installed on pressure-bearing crossbeam by the first sliding block, and each steel frame passes through
Second sliding block is connected with the hydraulic cylinder of multiple independent controls；
3) imposed load：The position of each hydraulic cylinder is adjusted by the first sliding block and the second sliding block, each hydraulic cylinder passes through
Fluid pressure line is connected with Hydraulic Station；Now, controller sets target oil pressure value, and open Hydraulic Station and pressurizeed；
4) fire resistance test：Treat that the piston rod of all hydraulic cylinders for using all smoothly stretches out, the lower end of piston rod holds out against experiment
Sample, and capacity value reach it is constant after, trial furnace start heated up by standard temperature rise curve, heated with to test specimen
In temperature-rise period, the oil pressure Value Data of Hydraulic Station is delivered to data processing equipment to test specimen by converter, to be divided
Analysis and record；
5) experiment is stopped：Trial furnace stops heating, and the piston rod full retraction of hydraulic cylinder resets, and closes fluid pressure line, and
Unclamp the snap joint connected between hydraulic cylinder and hydraulic pressure road pipe；Finally by loop wheel machine by loaded load device, and remove test
Sample.
In step 3) in, the deviation of controller sets target oil pressure value is less than or equal to 2.5%.Wherein target oil pressure value
Must determine can be as obtained by design load value be calculated, and computing formula is as follows：
Wherein, F is design load value, and D is oil cylinder internal diameter, and input is calculated in hydraulic controller
Oil pressure desired value P.
In step 4) in, before trial furnace starts, the time of Hydraulic Station pressurization is more than or equal to 15min.
In step 4) in, the oil pressure Value Data of Hydraulic Station is at interval of transmission primaries in 30s~60s to data processing equipment.
When test sample be 4800mm it is long × 3200mm is wide × 200mm thick floor construction, need to be by design requirement
During fire resistance test, fiery face is carried on the back to test specimen and applies 2.0kN/m2Uniform design load, the sample is when span is 4500mm
Extreme flexion deflection is 253mm.
Calculated according to pressure formula F=S × P, this time the total loading capacity of loading is equal to：
4.8m×3.2m×2.0kN/m2=30.72kN；
In the present embodiment, it is 6 groups to use the quantity of steel frame 5, the number of hydraulic cylinder 6 totally 24, and hydraulic cylinder cylinder diameter is 30mm,
Effective travel is 400mm.The leg board size of pressurization Universal stand 7 is 150mm.
According to calculating, the pressure F=30.72kN/24=1.28kN of the single applying of hydraulic cylinder for using.
According to formulaCalculate,：
Target oil pressure value
Hydraulic controller input target oil pressure value is 1.812Mpa before experiment, and oil pressure deviation is set to 0.045Mpa.
As shown in Fig. 1~Fig. 5, a kind of loading device for realizing above-mentioned horizontal constructions component fire resistance test loading method,
Pressure-bearing column 2, pressure-bearing pipe support 3, pressure-bearing crossbeam 4, multiple steel frames 5, liquid including being fixed on the length direction two ends of trial furnace 1
Pressure station 6, controller 7 and data processing equipment 8, the pressure-bearing crossbeam 4 are installed on the upper end of pressure-bearing column 2, the pressure-bearing pipe support 3
Length direction two ends be connected with the middle part of pressure-bearing column 2, the width two ends of the pressure-bearing pipe support 3 are connected with trial furnace 1；
The upper end of multiple steel frames 5 is installed on pressure-bearing crossbeam 4 by the first sliding block 9, and the lower end of each steel frame 5 is provided with multiple
Second sliding block 10, and each second sliding block 10 is provided with the hydraulic cylinder 11 of independent control；The hydraulic cylinder 11 passes through fluid pressure line
12 are connected with Hydraulic Station 6, and the Hydraulic Station 6 is connected with controller 7, and the data processing equipment 8 is by converter 13 and control
Device 7 is connected.
In real work, the pressure-bearing crossbeam 4 and pressure-bearing column 2 are made of H profile steel.The bottom of pressure-bearing column 2 leads to
Cross foundation bolt to be fixed on the concrete pedestal at the length direction two ends of trial furnace 1, concrete pedestal is embedded with reinforcing bar.To ensure
The stability that pressure-bearing crossbeam 4 is installed, envelope is welded between two wing plates of the H profile steel both sides of pressure-bearing crossbeam 4 along the total length of pressure-bearing crossbeam 4
Mouth strengthening steel slab 14.Four screw holes are reserved in the two ends of pressure-bearing crossbeam 4 with the top of compression struts 2, are used when installing fixed
Bolt connection is fixed.And pressure-bearing pipe support 3 is made of annular square tube, outside and the pressure-bearing at the length direction two ends of pressure-bearing pipe support 3 are stood
Post 2 is fixedly connected.In order to be further ensured that the stability of pressure-bearing pipe support 3, and the bottom at the width two ends of pressure-bearing pipe support 3 and examination
The surrounding welding of stove 1 is tested, to ensure the stability of pressure-bearing pipe support 3, so as to ensure to improve the bearing strength of pressure-bearing column 2, is improved
The reliability of work.
The steel frame 5 is orthogonal with pressure-bearing crossbeam 4.Wherein, the quantity of steel frame 5 is 6 in the present embodiment,
And be also adopted by H profile steel and be made in strip.This 6 steel frames 5 lead to the first sliding block 9 and are installed on below pressure-bearing crossbeam 4, and 6
Individual steel frame 5 is disposed in parallel relation to one another.To ensure the stability of steel frame 5, the two ends of steel frame 5 are distinguished by pole 29
It is supported on the two ends of the width of pressure-bearing pipe support 3.The upper end of wherein pole 29 is fixedly connected by screw with steel frame, and is propped up
The lower end of bar 29 is slidably connected with pressure-bearing pipe support 3.Each steel frame 5 is connected with 4 hydraulic cylinders 11 by the second sliding block 10.Cause
6 steel frames 5 lead to the first sliding block 9 and are installed on below pressure-bearing crossbeam 4, and 4 hydraulic cylinders 11 are pacified by the second sliding block 10
Loaded on steel frame 5.Then hydraulic cylinder 11 can be vertically moved by the first sliding block 9 and (moved along the axis direction of pressure-bearing crossbeam 4
It is dynamic), meanwhile, hydraulic cylinder 11 can also carry out transverse shifting (being moved along the axis direction of steel frame 5) by the second sliding block 10,
Each hydraulic cylinder 11 is individually control simultaneously, and load(ing) point quantity can be at any time increased and decreased hence for various sizes of test sample, full
Foot is simulated the requirement of uniform load or load to test specimen.And the data processing equipment 8 in the present embodiment is computer.
The piston-rod lower end of the hydraulic cylinder 11 is provided with Universal stand 15, and this Universal stand 15 is connected by bearing with piston rod
Connect, and padded added with high temperature resistant pad between the support foot plate and bearing of Universal stand 15.This structure ensures the smoothness of hydraulic cylinder movement,
And high temperature resistant pad also hydraulic cylinder 11 plays a part of protection.
The fluid pressure line 12 includes that main oil feed line 16, main return line 17 branch equal with the quantity of steel frame 5 are supplied
Oil pipe line 18 and the branch return line 19 equal with the quantity of steel frame 5, each bar branch oil feed line 18 are installed on corresponding steel knot
The side of framework 5, each bar branch return line 19 is installed on the opposite side of corresponding steel frame 5；All of branch oil feed line 18
Be connected with the outlet of Hydraulic Station 6 by main oil feed line 16, all of branch return line 19 by main return line 17 with
The entrance connection of Hydraulic Station 6；Entrance positioned at every multiple hydraulic cylinders 11 of the lower section of steel frame 5 passes through corresponding ball valve respectively
Switch 20 is connected with corresponding branch oil feed line 18；Positioned at every outlet difference of the multiple hydraulic cylinders 11 of the lower section of steel frame 5
Connected with corresponding branch return line 19 by corresponding ball valve switch 20.Specifically, to ensure enough pressure, main oil passage
Pipe 16 uses two, and every three branch oil passage pipe 18 is connected for one group with wherein one main oil passage pipe 16.Branch oil passage pipe 18
It is connected with main oil passage pipe 16 by corresponding hydraulic hose 21, to ensure being completely embedded property between the two.To ensure connection
Compactness, branch oil return line pipe 19 is connected also by corresponding hydraulic hose 21 with main oil return line pipe 17.
As shown in figure 3, first sliding block 9 includes upper slide 22, lower skateboard 23 and Duo Gen connecting screw rods 24, the upper cunning
Plate 22 and lower skateboard 23 are respectively above pressure-bearing crossbeam 4 and following, and pass through between the upper slide 22 and lower skateboard 23
Connecting screw rod 24 is connected, and is connected with lower skateboard 23 by welding above the steel frame 5.It is this simple structure, easy for installation.
As shown in figure 4, second sliding block 10 includes slide body 25 and multiple clamping screws 26, the upper end of the slide body 25
Inverted T-slot 27 is provided with, the slide body 25 is connected by T-slot 27 with the lower slide of steel frame 5；The hydraulic cylinder 11 leads to
Cross the lower end that latch 28 is installed on slide body 25；After hydraulic cylinder 11 is had good positioning, the slide body 25 by clamping screw 26 with
The locking connection of steel frame 5.It is this simple structure, easy for installation.In specifically used, hydraulic cylinder 11 along steel frame 5 axis
Slide, appropriate position is adjusted with according to test specimen, after position determines, that is, after having good positioning, tighten clamping screw 26, with
When preventing hydraulic cylinder 11 from working, i.e., slip is produced when being loaded to test specimen.
Above-mentioned specific embodiment is the preferred embodiments of the present invention, can not be limited the invention, and others are appointed
Change or other equivalent substitute modes that what is made without departing from technical scheme, are included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of horizontal constructions component fire resistance test loading method, it is characterised in that comprise the following steps：
1) supporting construction is installed：Trial furnace length direction two ends set pressure-bearing column, the length direction two ends of pressure-bearing pipe support with
Pressure-bearing column is connected, and the width two ends of pressure-bearing pipe support are connected with trial furnace；
2) installation of loaded load device：Test specimen is attached on horizontal fire test furnace, by loop wheel machine by hydraulic loaded
System pressure-bearing crossbeam hangs trial furnace top, and the two ends of pressure-bearing crossbeam are separately fixed at positioned at trial furnace length direction two ends
Pressure-bearing column upper end；Multiple steel frames are installed on pressure-bearing crossbeam by the first sliding block, and each steel frame passes through second
Sliding block is connected with the hydraulic cylinder of multiple independent controls；
3) imposed load：The position of each hydraulic cylinder is adjusted by the first sliding block and the second sliding block, each hydraulic cylinder passes through hydraulic pressure
Pipeline is connected with Hydraulic Station；Now, controller sets target oil pressure value, and open Hydraulic Station and pressurizeed；
4) fire resistance test：Treat that the piston rod of all hydraulic cylinders for using all smoothly stretches out, the lower end of piston rod holds out against test specimen,
And capacity value reach it is constant after, trial furnace start heated up by standard temperature rise curve, carry out heat run with to test specimen
In temperature-rise period, the oil pressure Value Data of Hydraulic Station is delivered to data processing equipment to sample by converter, being analyzed and
Record；
5) experiment is stopped：Trial furnace stops heating, and the piston rod full retraction of hydraulic cylinder resets, and closes fluid pressure line, and unclamp
The snap joint connected between hydraulic cylinder and hydraulic pressure road pipe；Finally by loop wheel machine by loaded load device, and remove test sample.
2. horizontal constructions component fire resistance test loading method according to claim 1, it is characterised in that：In step 3) in,
The deviation of controller sets target oil pressure value is less than or equal to 2.5%.
3. horizontal constructions component fire resistance test loading method according to claim 1, it is characterised in that：In step 4) in,
Before trial furnace starts, the time of Hydraulic Station pressurization is more than or equal to 15min.
4. horizontal constructions component fire resistance test loading method according to claim 1, it is characterised in that：In step 4) in,
The oil pressure Value Data of Hydraulic Station is at interval of transmission primaries in 30s~60s to data processing equipment.
5. a kind of loading for realizing the horizontal constructions component fire resistance test loading method in Claims 1 to 4 described in any one
Device, it is characterised in that：Pressure-bearing column, pressure-bearing pipe support, pressure-bearing crossbeam, multiple including being fixed on trial furnace length direction two ends
Steel frame, Hydraulic Station, controller and data processing equipment, the pressure-bearing crossbeam are installed on the upper end of pressure-bearing column, described to hold
The length direction two ends of pipe-pressing support are connected with the middle part of pressure-bearing column, and width two ends and the trial furnace of the pressure-bearing pipe support connect
Connect；The upper end of multiple steel frames is installed on pressure-bearing crossbeam by the first sliding block, and the lower end of each steel frame is provided with multiple
Second sliding block, and each second sliding block is provided with the hydraulic cylinder of independent control；The hydraulic cylinder passes through fluid pressure line and Hydraulic Station
Connection, the Hydraulic Station is connected with controller, and the data processing equipment is connected by converter with controller.
6. horizontal constructions component fire resistance test loading device according to claim 5, it is characterised in that：The hydraulic cylinder
Piston-rod lower end is provided with Universal stand, and this Universal stand is connected by bearing with piston rod, and Universal stand support foot plate and axle
Padded between holding added with high temperature resistant pad.
7. horizontal constructions component fire resistance test loading device according to claim 5, it is characterised in that：The steel frame
It is orthogonal with pressure-bearing crossbeam；The two ends of the steel frame are supported on the two ends of pressure-bearing pipe support width by pole.
8. horizontal constructions component fire resistance test loading device according to claim 5, it is characterised in that：The fluid pressure line
Including main oil feed line, main return line the branch oil feed line equal with steel frame quantity and equal with steel frame quantity
Branch return line, each bar branch oil feed line is installed on the side of corresponding steel frame, and each bar branch return line is installed on phase
The opposite side of the steel frame answered；All of branch oil feed line is connected by main oil feed line with the outlet of Hydraulic Station, is owned
Branch return line be connected with the entrance of Hydraulic Station by main return line；Multiple hydraulic pressure below every steel frame
The entrance of cylinder is connected by corresponding ball valve switch with corresponding branch oil feed line respectively；It is many below every steel frame
The outlet of individual hydraulic cylinder is connected by corresponding ball valve switch with corresponding branch return line respectively.
9. horizontal constructions component fire resistance test loading device according to claim 5, it is characterised in that：First sliding block
Including upper slide, lower skateboard and Duo Gen connecting screw rods, the upper slide and lower skateboard are located above pressure-bearing crossbeam with respectively
Connected by connecting screw rod between face, and the upper slide and lower skateboard, by welding and downslide above the steel frame
Plate is connected.
10. horizontal constructions component fire resistance test loading device according to claim 5, it is characterised in that：Described second slides
Block includes slide body and multiple clamping screws, and the slide body upper end is provided with inverted T-slot, and the slide body passes through T-slot and steel
The lower slide connection of structure-steel framing；The hydraulic cylinder is installed on the lower end of slide body by latch；After hydraulic cylinder is had good positioning, institute
Slide body is stated to be connected with steel frame locking by clamping screw.
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| CN201710187346.0A CN106813936B (en) | 2017-03-27 | 2017-03-27 | Loading method and loading device for fire resistance test of horizontal building component |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760288A (en) * | 2018-08-31 | 2018-11-06 | 山西航天清华装备有限责任公司 | Special-shaped type component loading device |
| CN114076809A (en) * | 2021-10-13 | 2022-02-22 | 中国联合工程有限公司 | Building structure cross node fire resistance test device and working method thereof |
| CN114813349A (en) * | 2022-04-29 | 2022-07-29 | 南通市建筑科学研究院有限公司 | A self-adaptation detector for prefabricated component structural performance detects |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476991A (en) * | 2009-01-24 | 2009-07-08 | 哈尔滨工业大学 | Fire-resisting test apparatus with double-layer double-span frame structure and its implementing method |
| KR20100082968A (en) * | 2009-01-12 | 2010-07-21 | (주)네오크로스구조엔지니어링 | Fire resistance test apparatus for member of building and method of fire resistance test for elements of building construction |
| CN103033427A (en) * | 2012-12-13 | 2013-04-10 | 广州市建筑材料工业研究所有限公司 | Method and device for water-impact-resistant test on building element after fire-resistant test |
| CN204228643U (en) * | 2014-10-21 | 2015-03-25 | 中国矿业大学 | Fire-resistance test system is retrained in continuous-reinforced slab face |
| CN104677940A (en) * | 2015-01-30 | 2015-06-03 | 中国矿业大学 | Reinforced concrete shell fire resistance testing system |
| CN104976892A (en) * | 2014-04-11 | 2015-10-14 | 上海宝钢化工有限公司 | High-temperature lifting furnace |
| CN105043851A (en) * | 2015-07-29 | 2015-11-11 | 安徽建筑大学 | Fire test furnace loading device |
| CN105910940A (en) * | 2016-06-23 | 2016-08-31 | 华北水利水电大学 | Shear wall fire exposure testing device under vertical load effect |
-
2017
- 2017-03-27 CN CN201710187346.0A patent/CN106813936B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100082968A (en) * | 2009-01-12 | 2010-07-21 | (주)네오크로스구조엔지니어링 | Fire resistance test apparatus for member of building and method of fire resistance test for elements of building construction |
| CN101476991A (en) * | 2009-01-24 | 2009-07-08 | 哈尔滨工业大学 | Fire-resisting test apparatus with double-layer double-span frame structure and its implementing method |
| CN103033427A (en) * | 2012-12-13 | 2013-04-10 | 广州市建筑材料工业研究所有限公司 | Method and device for water-impact-resistant test on building element after fire-resistant test |
| CN104976892A (en) * | 2014-04-11 | 2015-10-14 | 上海宝钢化工有限公司 | High-temperature lifting furnace |
| CN204228643U (en) * | 2014-10-21 | 2015-03-25 | 中国矿业大学 | Fire-resistance test system is retrained in continuous-reinforced slab face |
| CN104677940A (en) * | 2015-01-30 | 2015-06-03 | 中国矿业大学 | Reinforced concrete shell fire resistance testing system |
| CN105043851A (en) * | 2015-07-29 | 2015-11-11 | 安徽建筑大学 | Fire test furnace loading device |
| CN105910940A (en) * | 2016-06-23 | 2016-08-31 | 华北水利水电大学 | Shear wall fire exposure testing device under vertical load effect |
Non-Patent Citations (1)
| Title |
|---|
| 倪照鹏等: "木结构建筑构件耐火性能试验研究", 《土木工程学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760288A (en) * | 2018-08-31 | 2018-11-06 | 山西航天清华装备有限责任公司 | Special-shaped type component loading device |
| CN108760288B (en) * | 2018-08-31 | 2024-03-15 | 山西航天清华装备有限责任公司 | Special-shaped part loading device |
| CN114076809A (en) * | 2021-10-13 | 2022-02-22 | 中国联合工程有限公司 | Building structure cross node fire resistance test device and working method thereof |
| CN114076809B (en) * | 2021-10-13 | 2024-06-04 | 中国联合工程有限公司 | Fire resistance test device for cross joint of building structure and working method thereof |
| CN114813349A (en) * | 2022-04-29 | 2022-07-29 | 南通市建筑科学研究院有限公司 | A self-adaptation detector for prefabricated component structural performance detects |
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| CN106813936B (en) | 2023-02-03 |
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