CN106769414A - Load and test specimen durability test device under environment coupled action - Google Patents
Load and test specimen durability test device under environment coupled action Download PDFInfo
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- CN106769414A CN106769414A CN201710003604.5A CN201710003604A CN106769414A CN 106769414 A CN106769414 A CN 106769414A CN 201710003604 A CN201710003604 A CN 201710003604A CN 106769414 A CN106769414 A CN 106769414A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
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Abstract
A kind of load and test specimen durability test device under environment coupled action, including work chamber, loads fixture, test specimen, internal load transfer device, outside load transfer device, internal support, external support, jack, reaction frame and test system；Wherein external support is fixed on big ground, and work chamber is placed in external support；Internal load transfer device is placed in the inside support in work chamber together with loads fixture and test specimen, and is passed hole by internal load transfer device and be connected with outside load transfer device；Outside load transfer device is connected with jack and reaction frame；By opening jack, the top lift that jack causes is passed to outside load transfer device by reaction frame, and then is transmitted the force to internal load transfer device and loads fixture and be ultimately transferred to test specimen, so as to realize being further applied load test specimen in work chamber.Experimental rig of the invention does not influence load to apply in environmental change, and load does not influence environmental activity when applying, therefore both change separate, collective effect.
Description
Technical field
The invention belongs to a kind of structural material durability test device, more particularly to load and environment long-time coupling
Under to the device of the Mechanics Performance Testing of test specimen experiment.
Background technology
With the development of building trade, concrete structure with the every aspect for also relating to human lives, it is and near
Over year due to caused by concrete structure durability deficiency accident be on the increase, the problem of concrete durability also increasingly by
People pay close attention to, particularly in some Important Projects, such as dam, bridge, harbour etc. and some high-rises, these structures
Just destroyed design period is not reaching to, cause huge economic losses and casualties.
Although having decades about the research of concrete structure durability, correlative study achievement also has much, much grinds
Study carefully main consideration environmental factor, and ignore other factors, such as load factor.Environment residing for many structures is more complicated, right
Structure has requirement very high.Such as coastal area is in bar in chlorine salt solution throughout the year, and structure is subject to serious chloride erosion, while also having
The load that structure itself is born；Acid Rain Area structure will not only meet the requirement of load, it is also contemplated that the erosion of sulfuric acid；In river
Bridge, the dynamic load of the vehicle of dealing is not only born, while it is also contemplated that corrosion of the water to reinforcing bar.With human society
Development, the exploitation to some complex environments, increasing structure not only considers shadow of the single factor to its durability
Ring, must also consider multifactor coupling.In Practical Project, only consider that single environmental factor is incomplete, it is impossible to
The actual conditions of real reaction structure, can so produce hidden danger, so the research of the durability to concrete structure, it is considered to
Should be stress with varying environment collective effect under, it is considered to factor should be multifactor, at least dual factors.Simultaneously it is many because
Influence of the element to concrete is nor be simply superimposed, different factors can influence each other, and more exacerbate the destruction of concrete structure.
How the durability of concrete structure is a good problem to study in more preferable simulation Practical Project.To understand as reinforcing bar is mixed
Native this kind of material characteristic in the presence of a harsh environment is coagulated, it is necessary to test its mechanical property in the presence of a harsh environment, and test severe ring
Loads change is to material or the Effect on Mechanical Properties of test specimen in border.
Endurance issues of the research concrete under multifactor collective effect, topmost difficult point seeks to set up an energy
Enough methods for carrying out multifactorial experiment simultaneously, it includes the load mode of experimental enviroment and load.From actual engineering,
No matter reinforced concrete structure any complex environment is in, and is worked and runs under loaded state.So, study ring
Border has important Research Significance and application value with the durability of concrete under load collective effect.Setting up above-mentioned experiment side
During method, first have to consider some：First, the load mode of design will can be provided and meet condition, accurate load action；
Second, the load mode of design will can provide the load action that can change at any time；3rd, the data of experiment will quickly,
Accurately collect.
It is relatively fewer to durable Journal of Sex Research under multifactor collective effect both at home and abroad, data of literatures is read, sent out after summary
The experiment that existing related loading device is carried out is by curved destruction.Its main cause has：1. the experiment dress of tensile failure is carried out
Put general all more more than larger, required test space, difficulty combined with environmental factor, this make the design of experimental rig and
Processing is extremely difficult；2. the test operation difficulty of tensile failure is big, is easy to eccentric phenomena occur in experiment, and this makes experimental result
It is unstable, with larger discreteness；3. consider that load factor is acted on simultaneously with environmental factor, general loading method cannot meet
The requirement of tension and compression destruction, such as prestressing force loading.Comprehensive existing documents and materials, concrete under related multifactor collective effect
The loading device of endurancing can be divided into three types：1) using the load load mode of lever principle；2) torsion is utilized
The load mode of spanner design；3) load mode designed using spring according to Hooke's law.The method of these three loadings respectively has
Advantage and disadvantage, wherein the advantage using the load mode of lever principle is simple to operate, but shortcoming is it is also obvious that needed for this method
Space it is very big, such as corrosive environment etc. very inapplicable for some complex environments；For the loading side that torque spanner is designed
Formula, advantage is small volume, is easy to be placed in environmental cabinet, also can be good at being applicable for some complex environments, but have the disadvantage
The precision of this mode is inadequate, it is impossible to the size of enough accurate controlled loading power, and power occurs in prolonged experiment
Loss；For the load mode using spring, advantage is small volume, and principle is simple, easy to operate, has the disadvantage spring after use
Have certain lax, the loss of load action occur.Additionally, said apparatus also have a distinct issues, that is, once
Load action applies to finish, and after test specimen is put into durability experimental device, is difficult to again be adjusted load action.
For the problem of above-mentioned several load modes, development one kind can independently be further applied load and can be very with environmental cabinet at any time
The concrete durability device of good matching, has important application value in concrete durability research, and prospect is very wide.
The content of the invention
The present invention solves the technical problem of provide it is a kind of in varying environment test test specimen endurance quality and
Experimental rig of the test load change on the influence of varying environment test specimen endurance quality.It is main to solve power loading and erosion environment work
Separate effect.The device of invention can be respectively or same to the load action in process of the test and Chloride Attack environment
When adjust so that realize variable load effect Imitating varying environment in test specimen stress performance test.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Tried under a kind of load and environment coupled action
Part durability test device, it is characterised in that the experimental rig includes work chamber, loads fixture, the examination of simulated environment
Part, internal load transfer device, outside load transfer device, internal support, external support, jack, reaction frame and test system；Wherein
External support is fixed on big ground, and work chamber is placed in external support, set in work chamber salt fog spray head, humidity tester with
And chloride ion content tester, for simulating and controlling Chloride Attack effect of the indoor environment to test specimen；Internal load transfer device
Together with loads fixture and test specimen, be placed in the inside support in work chamber, and by internal load transfer device pass hole with it is outer
Portion's load transfer device connection；Outside load transfer device is connected with jack and reaction frame；By opening jack, reaction frame will be very heavy
The top lift that top causes passes to outside load transfer device, and then transmits the force to internal load transfer device and loads fixture and finally pass
Pass test specimen, so as to realize being further applied load test specimen in work chamber, in whole process by test system complete test specimen it is many because
Durability performance test under plain collective effect.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：Experiment
The test system of device is measured by sensor, test lead, data and tape deck is constituted, and data are measured and tape deck passes through
Test lead is connected with the sensor on test specimen.That thus brings has the technical effect that：Experiment structure of the sensor arrangement in test
On part, with work test circuit out of my cabin and data collecting instrument be connected test signal by instrument connection by test lead, is thus seen
Mechanical property degradation situation of the test block under load and erosion environment coupling.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：It is described
Jack is hydraulic jack.That thus brings has the technical effect that：The loading of power is realized by hydraulic system, due to using very heavy
Top, can both realize load steady state, it is also possible to easily change the size of load, and environmental factor is not influenceed to the mechanics of test specimen
Performance is acted on.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：Salt fog
Shower nozzle is located at the tank wall top of work chamber, and chloride ion content tester and humidity tester are located at the right upper portion area of work chamber
Domain.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：Test specimen
It is placed in internal support through loads fixture, inside support passes hole and is supported on anti-corrosion bearing by interior support posts,
And separation layer is provided between anti-corrosion bearing and interior support posts pass hole, internal load transfer device is worn by internal load transfer device
Go out hole to be connected with outside load transfer device.That thus brings has the technical effect that：Outside load transfer device is passed through and sets separation layer
Work chamber duct is connected and power transmission with internal load transfer device, and separation layer is used to separate influencing each other for internal and external environment, realizes outer
Portion's load transfer device, jack and reaction frame work in conventional environment, and the environment in work chamber does not produce influence on it, equally
Loads change also will not produce influence to work indoor environment.Can be to load and environmental attack effect simultaneously in process of the test
Change, also can individually change.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：Also wrap
Pressure sensor is included, pressure sensor is placed on the base plate of outside load transfer device, and jack is placed on pressure sensor top,
Reaction frame be located at jack top, through outside load transfer device after be connected with reaction frame bearing.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：Loading
Fixture is that internally the top of load transfer device upper end, is connected by a loop bar by curved loads fixture；By curved loads fixture
It is made up of the bloom of protrusion in the middle of four pull bars and four, pull bar two ends process screw thread, and bloom two ends process to be run through up and down
Hole, for through pull bar；Circular aperture is processed in the semicircle protruded in the middle of bloom, for laying loop bar；Loop bar
Bottom passes through the termination of internal load transfer device and by curved loads fixture bottom, transfers the load to by curved loads fixture, loop bar
Top directly contacts with test specimen, transfers the load on test specimen.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：Loading
Fixture is that axle draws loads fixture, and the steel column by U-shaped chuck and with semicircular end constitutes, U-shaped chuck processed by a bloom and
Into both sides form certain angle to intermediate, inclined, and for fixing test specimen, bottom links together with tension steel column, steel column bottom
End machining go out circular opening, for laying loop bar, under loop bar passes through the termination of internal load transfer device and axle to draw loads fixture
Portion termination, transfers the load to axle and draws in loads fixture, and axle draws loads fixture directly and test specimen contact, transfers the load to test specimen
On.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：It is internal
Load transfer device is made up of upper end, pull bar, lower end, and wherein upper end processes U-shaped groove termination by whole bloom, in termination
Circular hole is outputed in both sides and bottom, and the hole of the right and left is used for through the loop bar by curved loads fixture bottom, and bottom hole connects
Connect the pull bar of internal load transfer device, the upper end of pull bar processes screw thread, through termination after screw on nut, lower end and internal power transmission dress
The lower end put welds together, and lower end has four blocks of steel plates to be welded on formation on pull bar, in cross.
Further, described load and test specimen durability test device under environment coupled action, it is characterised in that：It is outside
Load transfer device is made up of the bloom of four two ends perforates and the strip steel plate of four two ends perforates, and each two loop bar is initially passed through
Two termination circular holes of bloom, form quadrilateral structure, then by the strip slab of two ends perforate respectively by quadrilateral structure pair
Answer the loop bar at angle to couple together, formed and be similar to a cubical structure.
The beneficial effects of the invention are as follows：Compared with prior art, advantages of the present invention and effect are：
Similar experimental rig cannot simultaneously or independently be adjusted flexibly environment and Load Problems before the 1, the present invention is solved.
Similar experimental rig is relatively difficult when treatment changes between the two.Experimental rig of the invention does not influence in environmental change
Load applies, and load does not influence environmental activity when applying, therefore both change separate, collective effect.
2nd, experimental rig of the present invention is in process of the test, when changing environment or being further applied load need not nigration component or
The environment of test component, it is ensured that the accuracy of result of the test.
3rd, similar experimental rig is mainly carries out specimen test, and experimental rig of the invention can carry out component test.Structure
The size of part is far longer than the size of test specimen.With actual components in same magnitude on yardstick.
4th, test system can be tested during varying environment and load change, the mistake of some mechanical responses on component
Journey curve.It is easy to the influence of the endurance quality and load of in situ study coupling lower member to the endurance quality of component.
Brief description of the drawings
Fig. 1 is the structural representation to the durability test device for being loaded and being tested by curved test specimen.
Fig. 2 is the structural representation of the durability test device for drawing axle test specimen loading and test.
Fig. 3 is the connection diagram with internal load transfer device upper end by curved loads fixture.
Fig. 4 is the connection diagram that axle draws loads fixture and internal load transfer device upper end.
Fig. 5 is internal load transfer device detail drawing.
Fig. 6 is outside load transfer device detail drawing.
Fig. 7 is the support connection sectional view between interior support posts pin and external means of support.
The mark of each part is as follows in accompanying drawing：
1：Work chamber；2：Loads fixture；3：Test specimen；4：Inside support；5：Internal load transfer device；6：Separation layer；7：It is outside
Load transfer device；8：Anti-corrosion bearing；9：Sensor；10：Test lead；11：Data are measured and tape deck；12：Salt fog spray head
13：Data collecting system is supported；14：External support；15：Internal load transfer device passes hole；16：Interior support posts punched out
Hole；17：Test lead passes hole；18：Chloride ion content tester；19：Heating tube；20：Reaction frame；21：Jack；22：
Pressure sensor；23：Reaction frame bearing；24：Humidity tester；25：Greatly.
Specific embodiment
For a better understanding of the present invention, it is with reference to the embodiment content that the present invention is furture elucidated but of the invention
Content is not limited solely to the following examples.Those skilled in the art can make various changes or modifications to the present invention, these
The equivalent form of value is same within the scope of claims listed by the application are limited.
As shown in Figure 1 and Figure 2, experimental rig of the invention includes：Work chamber 1, loads fixture 2, test specimen 3, internal support 4,
Internal load transfer device 5, separation layer 6, outside load transfer device 7, anti-corrosion bearing 8, sensor 9, test lead 10, data are measured and remembered
Recording device 11, the support 13, external support 14 of salt fog spray head 12, data collecting system, internal load transfer device pass hole 15, inside
Support column passes hole 16, test lead and passes hole 17, chloride ion content tester 18, heating tube 19, reaction frame 20, very heavy
Top 21, pressure sensor 22, reaction frame bearing 23 and humidity tester 24.
Wherein external support 14 is fixed on the earth 25, and work chamber 1 is placed in external support 14, and data are measured and recorded
Device 11 is placed in data collecting system support 13, is connected with the sensor 9 on test specimen by test lead 10；Salt spray painting
The first 12 tank wall tops for being located at work chamber 1, chloride ion content tester 18 and humidity tester 24 are located on the right side of work chamber 1
Portion region, heating tube 19 is located at the lower right side region of work chamber 1, and test specimen 3 is placed in internal support 4 through loads fixture 2,
Inside support 4 passes hole 16 and is supported on anti-corrosion bearing 8 by interior support posts, and in anti-corrosion bearing 8 and interior support posts
Pass and be provided between hole 16 separation layer 6, internal load transfer device 5 passes hole 15 and filled with outside power transmission by internal load transfer device
Put 7 to be connected, pressure sensor 22 is placed on the base plate of outside load transfer device 7, jack 21 is placed on pressure sensor 22
Top, reaction frame 20 be located at jack 21 top, through outside load transfer device 7 after be connected with reaction frame bearing 23.
As shown in figure 3, by the top of the internally upper end of load transfer device 5 of curved loads fixture 2, being connected by a loop bar
Connect.The position is main to be first processed into U-shaped groove termination by a bloom, and circular hole is outputed on U-shaped groove termination both sides and bottom,
The hole of the right and left is used to, through the loop bar for being had bottom by angle coupling, an entirety is constituted with by curved loads fixture 2；Bottom connects
The pull bar of internal load transfer device 5, the upper end of pull bar processes screw thread, through termination after screw on nut.By curved loads fixture 2 by four
Root pull bar and four bloom compositions of middle protrusion, pull bar two ends process screw thread, and bloom two ends process the hole run through up and down
Hole, for through pull bar；Circular aperture is processed in the semicircle protruded in the middle of bloom, for laying loop bar.Bottom loop bar
Through the termination of internal load transfer device 5 and by the bottom of curved loads fixture 2, transfer the load to by curved loads fixture 2, top covers
Bar is directly contacted with test specimen 3, is transferred the load on test specimen 3.
As shown in figure 4, axle draws steel column of the loads fixture 2 by U-shaped chuck and with semicircular end to constitute, U-shaped chuck is by one
Individual bloom is processed, and both sides form certain angle, for fixing test specimen 3 to intermediate, inclined.Bottom is connected to tension steel column
Together, the end machining of steel column bottom goes out circular opening, for laying loop bar.Loop bar pass through internal load transfer device 5 termination and
Axle draws the bottom termination of loads fixture 2, transfers the load to axle and draws in loads fixture 2, and axle draws loads fixture 2 directly to be connect with test specimen 3
Touch, transfer the load on test specimen 3.
As shown in figure 5, internal load transfer device 5 is made up of upper end, pull bar, lower end.Wherein upper end is by whole bloom
U-shaped groove termination is processed, circular hole is outputed on termination both sides and bottom, the hole of the right and left is used for through by curved loading clamp
Has the loop bar of 2 bottoms, bottom hole connects the pull bar of internal load transfer device, and the upper end of pull bar processes screw thread, through after termination
Screw on nut, lower end welds together with the lower end of internal load transfer device, and lower end is that there are four blocks of steel plates to be welded on pull bar
Formed, in cross.
As shown in fig. 6, outside load transfer device 7 is by four blooms and four strip thickness steel of two ends perforate of two ends perforate
Plate is constituted, and each two loop bar initially passes through two termination circular holes of bloom, forms quadrilateral structure, then by the strip of two ends perforate
Slab respectively couples together the loop bar at quadrilateral structure corresponding angles, is formed and is similar to a cubical structure.Reaction frame 20
Upper end pass through outside load transfer device 7, lower end is buried in the earth 25.
As shown in fig. 7, being provided with anti-corrosion bed course 8 between 4 suspension columns of internal support and external means of support 14, it is to avoid work chamber 1
External support 14 is corroded in the outflow of internal corrosive material, separation layer 6 be mainly used in avoiding chamber internal corrosive material from
Inside 4 posts of support pass hole outflow.
Example is enumerated below to illustrate the behaviour of load of the invention and test specimen durability test device under environment coupled action
Make and service condition.
Example 1：Test specimen is carried out by curved load test under multifactor environment
Durability test device to being loaded and being tested by curved test component is as shown in Figure 1.Implementing step is：
(1) will be packaged with by curved loads fixture 2 by curved test specimen 3, Fig. 3 will be referred to by curved loads fixture.Number is arranged on test specimen 3
Stretched out by hole 17 with tape deck 1, corresponding test lead 10 according to measuring, measured with data and record system 11 is connected.Beat
Experimental rig work chamber 1 is opened, specified location in work chamber 1 will be placed in by curved test specimen 3 and loads fixture 2；(2) by loads fixture
2 are connected (refer to Fig. 5) with the internal upper end of load transfer device 5 by loop bar, close work chamber 1；(3) jack 21, foundation are opened
Sensor 9 adjusts the top lift of jack 21, and power is transmitted into outside load transfer device 7 (referring to Fig. 6) by reaction frame 20, passes through
Hole 15, and then internal load transfer device 5 is transmitted the force to, passing to test specimen 3 eventually through fixture 2 forms span centre concentrated force, this
When test specimen 3 bear 3 points of curved load actions；The two ends end reaction of test specimen 3 is then provided by inside support 4, and inside 4 posts of support pass through
Hole 16 is passed to be supported on rubber support 8 through work chamber 1, so as to support reaction is passed into environmental test chamber support 14, and
It is ultimately transferred to the earth 25.Whole Path of Force Transfer avoids work chamber, it is to avoid influence of the applying power load to work chamber 1.(4) lead to
Environmental system heating tube 19 is overregulated, controls the temperature inside the box, the sprayed salt mist of regulation salt fog spray head 12 to be tested by chloride ion content
Chloride ion content and humidity in instrument 18 and the monitoring box of humidity tester 24.Realize that control chloride ion content reaches specified content,
Ambient humidity reaches specified humidity, now due between the inside load transfer device 5 and outside load transfer device 7 of work chamber 1, internal branch
Anti-corrosion separation layer 6 (referring to Fig. 7) has been added respectively between support 4 and environmental test chamber support 14, so as to ensure work chamber 1 and external rings
Border isolates, it is to avoid the internal corrosive material of work chamber 1 flows out.(5) in whole process of the test, measured using data and record system
11, can obtain in real time under specified load action and ambient influnence, the mechanical property change feelings at the different measuring points position of test specimen 3
Condition.
Example 2：Axle is carried out to test component under multifactor environment and draws load test
Axis pulling experiment component is loaded and the durability test device of test is as shown in Figure 2.Implementing step is：
(1) axle of test specimen 3 is drawn to draw loads fixture 2 to package on axle, axle draws loads fixture to refer to Fig. 4.Number is arranged on test specimen 3
Stretched out by hole 17 with tape deck 1, corresponding test lead 10 according to measuring, measured with data and record system 11 is connected.Beat
Experimental rig work chamber 1 is opened, specified location in work chamber 1 will be placed in by curved test specimen 3 and loads fixture 2；(2) by loads fixture
2 are connected (refer to Fig. 5) with the internal upper end of load transfer device 5 by loop bar, close work chamber 1；(3) jack 21, foundation are opened
Sensor 9 adjusts the top lift of jack 21, and power is transmitted into outside load transfer device 7 (referring to Fig. 6) by reaction frame 20, passes through
Hole 15, and then internal load transfer device 5 is transmitted the force to, passing to test specimen 3 eventually through fixture 2 forms axial concentrated force, this
When test specimen 3 bear axle draw load action；The end reaction of test specimen 3 is then provided by inside support 4, and inside 4 posts of support are by passing
Hole 16 is supported on rubber support 8 through work chamber 1, so as to support reaction is passed into external support 14, and is ultimately transferred to
Greatly 25.Whole Path of Force Transfer avoids work chamber, it is to avoid influence of the applying power load to work chamber 1.(4) by adjusting ambient
System heating tube 19, controls the temperature inside the box, the sprayed salt mist of regulation salt fog spray head 12, by chloride ion content tester 18 and wet
Chloride ion content and humidity in the degree monitoring box of tester 24.Realize that control chloride ion content reaches specified content, ambient humidity reaches
To specified humidity, now due between the inside load transfer device 5 and outside load transfer device 7 of work chamber 1, internal support 4 with it is outside
Anti-corrosion separation layer 6 (referring to Fig. 7) has been added respectively between support 14, so as to ensure that work chamber 1 is isolated with external environment condition, it is to avoid work
The internal corrosive material outflow of cabin 1.(5) in whole process of the test, measured using data and record system 11, can obtained in real time
Under specified load action and ambient influnence, the mechanical property change at the different measuring points position of test specimen 3.
Finally it should be noted that above content is merely illustrative of the technical solution of the present invention, rather than the present invention is protected
The limitation of scope, simple modification or equivalent that one of ordinary skill in the art is carried out to technical scheme,
All without departing from the spirit and scope of technical solution of the present invention.
Claims (10)
1. test specimen durability test device under a kind of load and environment coupled action, it is characterised in that the experimental rig includes
One work chamber of simulated environment, loads fixture, test specimen, internal load transfer device, outside load transfer device, internal support, outside branch
Support, jack, reaction frame and test system；Wherein external support is fixed on big ground, and work chamber is placed in external support,
Salt fog spray head, humidity tester and chloride ion content tester are set in work chamber, for simulating and controlling indoor environment pair
The Chloride Attack effect of test specimen；Internal load transfer device is placed in the inside support in work chamber together with loads fixture and test specimen
On, and hole is passed by internal load transfer device be connected with outside load transfer device；Outside load transfer device and jack and counter-force
Frame is connected；By opening jack, the top lift that jack causes is passed to outside load transfer device by reaction frame, and then power is passed
Pass internal load transfer device and loads fixture and be ultimately transferred to test specimen, so that realize being further applied load test specimen in work chamber, it is whole
Durability performance of the test specimen under multifactor collective effect is completed during individual by test system to test.
2. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Examination
The test system of experiment device is measured by sensor, test lead, data and tape deck is constituted, and data are measured and tape deck leads to
Test lead is crossed to be connected with the sensor on test specimen.
3. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Institute
Jack is stated for hydraulic jack.
4. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Salt
Fog spray head is located at the tank wall top of work chamber, and chloride ion content tester and humidity tester are located at the right upper portion area of work chamber
Domain.
5. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Examination
Part is placed in internal support through loads fixture, and inside support passes hole and is supported on anti-corrosion bearing by interior support posts
On, and separation layer is provided between anti-corrosion bearing and interior support posts pass hole, internal load transfer device passes through internal power transmission and fills
Put and pass hole and be connected with outside load transfer device.
6. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Also
Including pressure sensor, pressure sensor is placed on the base plate of outside load transfer device, and jack is placed on pressure sensor
Portion, reaction frame be located at jack top, through outside load transfer device after be connected with reaction frame bearing.
7. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Plus
It is that internally the top of load transfer device upper end, is connected by a loop bar by curved loads fixture to carry fixture；By curved loading clamp
Have and be made up of the bloom of protrusion in the middle of four pull bars and four, pull bar two ends process screw thread, and bloom two ends process to be passed through up and down
The hole worn, for through pull bar；Circular aperture is processed in the semicircle protruded in the middle of bloom, for laying loop bar；Set
Bar bottom passes through the termination of internal load transfer device and by curved loads fixture bottom, transfers the load to by curved loads fixture, covers
Bar top directly contacts with test specimen, transfers the load on test specimen.
8. test specimen durability test device under load according to claim 1 and environment coupled action, it is characterised in that：Plus
It is that axle draws loads fixture to carry fixture, and the steel column by U-shaped chuck and with semicircular end is constituted, and U-shaped chuck is processed by a bloom
Form, both sides form certain angle to intermediate, inclined, and for fixing test specimen, bottom links together with tension steel column, steel column bottom
The end machining in portion goes out circular opening, and for laying loop bar, loop bar passes through the termination of internal load transfer device and axle to draw loads fixture
Bottom termination, transfers the load to axle and draws in loads fixture, and axle draws loads fixture directly and test specimen contact, transfers the load to examination
On part.
9. test specimen durability test device under load according to claim 7 and environment coupled action, it is characterised in that：It is interior
Portion's load transfer device is made up of upper end, pull bar, lower end, and wherein upper end processes U-shaped groove termination by whole bloom, at end
Circular hole is outputed in head both sides and bottom, and the hole of the right and left is used for through the loop bar by curved loads fixture bottom, bottom hole
The pull bar of the internal load transfer device of connection, the upper end of pull bar processes screw thread, through termination after screw on nut, lower end and internal power transmission
The lower end of device welds together, and lower end has four blocks of steel plates to be welded on formation on pull bar, in cross.
10. test specimen durability test device under the load according to claim 1 or 9 and environment coupled action, its feature exists
In：Outside load transfer device is made up of the bloom of four two ends perforates and the strip steel plate of four two ends perforates, each two set
Bar initially passes through two termination circular holes of bloom, forms quadrilateral structure, then by the strip slab of two ends perforate respectively by four sides
Loop bar at shape structure corresponding angles is coupled together, and is formed and is similar to a cubical structure.
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