CN205209894U - Reinforced concrete test piece adds curved test device under salt fog environment - Google Patents
Reinforced concrete test piece adds curved test device under salt fog environment Download PDFInfo
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- CN205209894U CN205209894U CN201520916745.2U CN201520916745U CN205209894U CN 205209894 U CN205209894 U CN 205209894U CN 201520916745 U CN201520916745 U CN 201520916745U CN 205209894 U CN205209894 U CN 205209894U
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Abstract
The utility model belongs to the material test field specifically, relates to a reinforced concrete test piece adds curved test device under salt fog environment. Test device includes: cushion cap, salt fog environment case, jack, pressure sensor, wherein: the cushion cap both ends are provided with bearing reaction frame, loading reaction frame respectively, and the cushion cap middle part is provided with salt fog environment case, fixed jack, fixing pressure sensor on the loading reaction frame are gone up to the bearing reaction frame, the reinforced concrete test piece is placed in salt fog environment incasement, and salt fog environment case provides the experiment required salt fog environment for the reinforced concrete test piece, and the bending load is applyed to jack pair reinforced concrete test piece, and pressure sensor measures the load value that reinforced concrete bore. The utility model discloses can exert the bending load to the reinforced concrete test piece under the salt fog environment, load range scope is big, and can be adjusted freely load value size in the experimentation is exerted and is kept load in -process salt fog and reveals fewly, and test data is accurate, reading data at any time, long service life.
Description
Technical field
The utility model belongs to Experiment of Material Science field, and particularly, under relating to a kind of salt mist environment, reinforced concrete test specimen adds curved test unit.
Background technology
Coastal building adopts reinforced concrete structure more, there is chlorion in marine atmosphere, and chlorion can cause steel bar corrosion, and then causes the destruction of reinforced concrete structure.For the permanance research of reinforced concrete, generally adopt artificial climate environmental experiment method Reality simulation environment in the lab, researchist thinks can the chlorine salt corrosion that causes reinforced concrete of simulated marine atmosphere environment preferably to the method for reinforced concrete test specimen cycle spray salt fog, but Wuzhong big academician point out, the common results of the multiple factors often of the reinforced concrete durability damage under true nature environment, concrete permanance research should consider relative multiple factors.At serviceability limit stage, reinforced concrete member always undergos the double action of load and chloride erosion, in order to the endurance quality of reinforced concrete member under the service state of Efficient Evaluation coastland, be necessary to carry out the endurancing under chloride erosion and the multiple coupled effect of bending load.
Villaumite is carried out in current laboratory and bending load is multiple coupled when testing, many employings apply counterweight mode to reinforced concrete test specimen under salt mist environment, but the load level that the method applies is limited, for the component that some load-bearing capacitys are higher, adopt the normal load level in the method be difficult to reach it stage under arms.The utility model patent of application publication number CN103674708A discloses concrete durability research experiment charger under a kind of various factors coupling effect, this charger can not freely control bending load size, and spray salt fog needs closed environment, utilize this charger to carry out loading experiment in salt mist experiment case, data can not be read at any time.The utility model patent of application publication number CN103743626A discloses a kind of for reinforced beam freeze thaw durability tests device and method of testing, although this test unit freely can control bending load, but be only applicable to Frozen-thawed cycled and Seawater corrosion coupling experiment, salt fog has strong corrosive attack to the metal in the charging assembly in this device, utilizes this experimental provision can not carry out the multiple coupled test of salt fog and load.
Utility model content
For solving above technical matters and overcoming existing equipment deficiency, under the utility model provides a kind of salt mist environment, reinforced concrete test specimen adds curved test unit, can freely control bending load size and read data at any time.
For achieving the above object, the utility model adopts following technical proposals:
Under salt mist environment, reinforced concrete test specimen adds curved test unit, comprising: cushion cap, salt mist environment case, lifting jack, pressure transducer; Wherein: cushion cap two ends are respectively arranged with bearing reaction frame, stand under load reaction frame, are provided with salt mist environment case in the middle part of cushion cap; Lifting jack fixed by bearing reaction frame, fixation pressure sensor on stand under load reaction frame; Reinforced concrete test specimen is positioned in salt mist environment case, and salt mist environment case provides the salt mist environment needed for experiment for reinforced concrete test specimen, and jack pair reinforced concrete test specimen applies bending load, and the payload values that reinforced concrete bears measured by pressure transducer.
Compared with prior art, the beneficial effects of the utility model are as follows: can apply bending load to the reinforced concrete test specimen under salt mist environment, loading range ability is large, can free adjustment payload values size in experimentation, apply and sustained loading process in salt fog reveal lack, test data is accurate, can read data at any time, long service life.
Accompanying drawing explanation
Fig. 1 is test unit structure schematic front view;
Fig. 2 is test unit structure schematic side view;
Fig. 3 is for adding curved driving head schematic perspective view;
In figure: 1, cushion cap, 2, salt mist environment case, 3, lifting jack, 4, pressure transducer, 5, bearing reaction frame, 6, stand under load reaction frame, 7, reinforced concrete test specimen, 8, main box, 9, load sliding tube, 10, sliding shoe is loaded, 11, load sliding tube bracing frame, 12, stand under load sliding tube, 13, stand under load sliding shoe, 14, stand under load sliding tube bracing frame, 15, add curved driving head, 16, long slab, 17, short slab, 18, circular arc camber, 19, slide rail, 20, beam support bar, 21, roller, 22, shower nozzle, 23, power spraye, 24, brine tank.
Embodiment
As shown in Figure 1 and Figure 2, under salt mist environment, reinforced concrete test specimen adds curved test unit, comprising: cushion cap 1, salt mist environment case 2, lifting jack 3, pressure transducer 4; Wherein: cushion cap 1 two ends are respectively arranged with bearing reaction frame 5, stand under load reaction frame 6, are provided with salt mist environment case 2 in the middle part of cushion cap 1; Bearing reaction frame 5 is fixed lifting jack 3, fixation pressure sensor 4 on stand under load reaction frame 6; Reinforced concrete test specimen 7 is positioned in salt mist environment case 2, salt mist environment case 2 is for providing the salt mist environment needed for experiment for reinforced concrete test specimen 7, lifting jack 3 pairs of reinforced concrete test specimens 7 apply bending load, and the payload values that reinforced concrete 7 bears measured by pressure transducer 4.
Salt mist environment case 2, comprising: main box 8, and main box 8 is square box; Main box 8 is fixed with and loads sliding tube 9 on the tank wall of lifting jack 3 side, loads in sliding tube 9 to arrange to load sliding shoe 10, and loading sliding shoe 10 one end is connected with lifting jack 3, one end contacts with the reinforced concrete test specimen 7 in main box 8; Cushion cap 1 is arranged and loads sliding tube bracing frame 11, load sliding tube 9 and supported by loading sliding tube bracing frame 11.
Main box 8 is fixed with stand under load sliding tube 12 towards answering on the tank wall of pressure transducer 4 side, has stand under load sliding shoe 13 in stand under load sliding tube 12, and stand under load sliding shoe 13 one end is connected with pressure transducer 4, one end contacts with the reinforced concrete test specimen 7 in main box 8; Cushion cap 1 is arranged stand under load sliding tube bracing frame 14, stand under load sliding tube 12 is supported by stand under load sliding tube bracing frame 14.
As shown in Figure 3, one end that loading sliding shoe 10, stand under load sliding shoe 13 contact with reinforced concrete test specimen 7 is all fixed with and adds curved driving head 15, adding curved driving head 15 is a block length plate 16, long slab about 16 two ends are fixed with the identical short slab of size 17, and the end face that short slab 17 contacts with reinforced concrete test specimen 7 is circular arc camber 18.
As shown in Figure 2, main box 8 inside is provided with slide rail 19, and slide rail 19 is fixed on main box 8 and does not connect on the both sides box wall of sliding tube, and every side box wall is equipped with two slide rails 19, the slide rail of both sides is symmetrical arranged, two upper and lower aligned fashion of slide rail 19 of every side; The two ends of beam support bar 20 are provided with roller 21, and roller 21 is positioned on slide rail 19, can slide on slide rail 19; Beam support bar 20 is cylindrical elongate bar, when carrying out reinforced concrete test specimen by curved experiment, for providing bearing reaction for reinforced concrete test specimen.
Shower nozzle 22 is arranged at respectively and does not connect on the main box both sides box wall of sliding tube, and shower nozzle 22 is connected with the power spraye 23 outside main box by conduit, and power spraye 23 is by tubes connection brine tank 24; Described loading sliding shoe 10, stand under load sliding shoe 13, add curved driving head 15, beam support bar 20 adopts pressure-resistant corrosion-resistant plastics, main box 8, slide rail 19 adopt heat-and corrosion-resistant plastics, and the material adopted is PVC, PP plastics such as.
Under salt mist environment, reinforced concrete test specimen is as follows by curved test method: open salt mist environment case 2, two pieces of reinforced concrete test specimens 7 are placed on beam support bar 20 both sides respectively, reinforced concrete test specimen 7 is aimed at and is loaded sliding shoe 10, stand under load sliding shoe 13, fixedly adds curved driving head 15 in the one end loading sliding shoe 10, stand under load sliding shoe 13 contacts with reinforced concrete test specimen 7; Then lifting jack 3 is controlled to loading sliding shoe 10 load application, load sliding shoe 10 and load is passed to reinforced concrete test specimen 7, load is passed to beam support bar 20 by reinforced concrete test specimen 7, load is passed to another block reinforced concrete test specimen 7 by beam support bar 20, load is passed to stand under load sliding shoe 13 by another block reinforced concrete test specimen 7, load is passed to pressure transducer 4 by stand under load sliding shoe 13 again, and pressure transducer 4 is measured and read payload values; When after the payload values that the data shown by pressure transducer 4 reach required, lifting jack 3 stops continuing to load, and maintains this payload values; Lifting jack 3 pairs of reinforced concrete test specimen 7 loadeds, close salt mist environment case 2, starts to spray, and power spraye 23 extracts the salt solution in brine tank 24, sprayed by shower nozzle 22 pairs of reinforced concrete test specimens 7; After a period of time, stop spraying, loosen lifting jack 3, take out reinforced concrete test specimen 7, complete test operation.
Claims (7)
1. under salt mist environment, reinforced concrete test specimen adds a curved test unit, comprising: cushion cap, salt mist environment case, lifting jack, pressure transducer; It is characterized in that: cushion cap two ends are respectively arranged with bearing reaction frame, stand under load reaction frame, are provided with salt mist environment case in the middle part of cushion cap; Lifting jack fixed by bearing reaction frame, fixation pressure sensor on stand under load reaction frame; Reinforced concrete test specimen is positioned in salt mist environment case, and salt mist environment case provides the salt mist environment needed for experiment for reinforced concrete test specimen, and jack pair reinforced concrete test specimen applies bending load, and the payload values that reinforced concrete bears measured by pressure transducer.
2. under salt mist environment according to claim 1, reinforced concrete test specimen adds curved test unit, it is characterized in that: salt mist environment case, comprising: main box, and main box is square box; Main box is fixed with loading sliding tube on the tank wall of lifting jack side, loads in sliding tube and arranges loading sliding shoe, and loading sliding shoe one end is connected with lifting jack, one end contacts with the reinforced concrete test specimen in main box; Cushion cap is arranged and loads sliding tube bracing frame, load sliding tube and support by loading sliding tube bracing frame.
3. under salt mist environment according to claim 2, reinforced concrete test specimen adds curved test unit, it is characterized in that: main box is fixed with stand under load sliding tube towards answering on the tank wall of pressure transducer side, there is stand under load sliding shoe in stand under load sliding tube, stand under load sliding shoe one end is connected with pressure transducer, one end contacts with the reinforced concrete test specimen in main box; Cushion cap is arranged stand under load sliding tube bracing frame, stand under load sliding tube is supported by stand under load sliding tube bracing frame.
4. under salt mist environment according to claim 3, reinforced concrete test specimen adds curved test unit, it is characterized in that: one end that loading sliding shoe, stand under load sliding shoe contact with reinforced concrete test specimen is all fixed with and adds curved driving head, adding curved driving head is a block length plate, the upper and lower two ends of long slab are fixed with the identical short slab of size, and the end face that short slab contacts with reinforced concrete test specimen is circular arc camber.
5. under salt mist environment according to claim 4, reinforced concrete test specimen adds curved test unit, it is characterized in that: main box inside is provided with slide rail, slide rail is fixed on main box and does not connect on the both sides box wall of sliding tube, every side box wall is equipped with two slide rails, the slide rail of both sides is symmetrical arranged, two upper and lower aligned fashion of slide rail of every side; The two ends of beam support bar are provided with roller, and roller is positioned on slide rail, can slide on slide rail; Beam support bar is cylindrical elongate bar, when carrying out reinforced concrete test specimen by curved experiment, for providing bearing reaction for reinforced concrete test specimen.
6. under salt mist environment according to claim 1, reinforced concrete test specimen adds curved test unit, it is characterized in that: shower nozzle is arranged at respectively and does not connect on the main box both sides box wall of sliding tube, shower nozzle is connected with the power spraye outside main box by conduit, and power spraye is by tubes connection brine tank.
7. under salt mist environment according to claim 5, reinforced concrete test specimen adds curved test unit, it is characterized in that: described loading sliding shoe, stand under load sliding shoe, add curved driving head, beam support bar adopts pressure-resistant corrosion-resistant plastics, main box, slide rail adopt heat-and corrosion-resistant plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916745.2U CN205209894U (en) | 2015-11-17 | 2015-11-17 | Reinforced concrete test piece adds curved test device under salt fog environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916745.2U CN205209894U (en) | 2015-11-17 | 2015-11-17 | Reinforced concrete test piece adds curved test device under salt fog environment |
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| CN205209894U true CN205209894U (en) | 2016-05-04 |
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| CN201520916745.2U Expired - Fee Related CN205209894U (en) | 2015-11-17 | 2015-11-17 | Reinforced concrete test piece adds curved test device under salt fog environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352819A (en) * | 2015-11-17 | 2016-02-24 | 中国石油大学(华东) | Bend test apparatus for reinforced concrete test piece in salt-spray environment and test method |
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- 2015-11-17 CN CN201520916745.2U patent/CN205209894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352819A (en) * | 2015-11-17 | 2016-02-24 | 中国石油大学(华东) | Bend test apparatus for reinforced concrete test piece in salt-spray environment and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20171117 |