CN202814778U - Concrete experiment loading device under coupling effect of load and multiple factors - Google Patents
Concrete experiment loading device under coupling effect of load and multiple factors Download PDFInfo
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- CN202814778U CN202814778U CN 201220310312 CN201220310312U CN202814778U CN 202814778 U CN202814778 U CN 202814778U CN 201220310312 CN201220310312 CN 201220310312 CN 201220310312 U CN201220310312 U CN 201220310312U CN 202814778 U CN202814778 U CN 202814778U
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- anchor clamps
- main clamp
- pressing machine
- top board
- pressing plate
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Abstract
The utility model aims to provide a concrete experiment loading device under the coupling effect of a load and multiple factors. The device comprises a press, a clamp, a sensor assembly and a test piece box. Concrete test pieces and the sensor assembly are installed in the clamp, the clamp is installed in the press, and the test piece box is sleeved outside the press. The concrete experiment loading device under the coupling effect of the load and multiple factors provided by the utility model is simple in structure and convenient to operate, and can simulate the real working condition when stress, chemical corrosion, dry and wet circulation or freezing and thawing cycle are jointly acted on a concrete member in practical engineering, so that data measured in the laboratory has a good engineering reference value.
Description
Technical field
The utility model relates to a kind of test unit, specifically concrete test unit.
Background technology
The concrete deterioration failure result of multiple damage factors coupling normally in the Practical Project, effect is researched and analysed Durability of Concrete to be difficult to the accurate response engineering actual according to single factors.Therefore, set up the multifactor coupling test method under Reality simulation environment-stress state, deterioration law failure mechanism and the safeguard procedures tool of studying concrete performance under the multifactor coupling are of great significance.
Similarly design relevant for concrete durability experiment charger under compressive stress and the coupling of many factors both at home and abroad at present, and bibliographical information for this technical research and analysis is arranged; Be subjected to the device of bending stress for the research concrete such as the device of Chinese Water Conservancy research institute, employing is answered torque wrench to twist nut and is loaded to test specimen, and it is well-known, the concrete in tension ultimate bearing capacity is approximately 1/20 of pressurized ultimate bearing capacity, if this device changes into to the pressurized concrete and loads, it is large many that the power that nut is subjected to is wanted, thereby often tightening nut will inevitably make thread abrasion reduce device serviceable life and test accuracy; Harbin Institute of Technology Zou Chao English announced a cover for the pressurized Concrete Design device, for so that whole anchor clamps and test specimen just in time can be put in the supporting test specimen box of existing fast freeze-thaw circulator uses, the area of pressing plate is designed to the area of section (square of lOOmm * 100mm) of standard specimen, and test specimen has adopted non-standard component (cross section is the circle of φ 100), thereby utilize unnecessary space to lay pull bar, so pull bar restricted diameter system, consequently or the high but not re-usable high-strength bolt of working strength, or be only applicable to the lower pressurized concrete sample of design strength; China utility model patent CN101979990A has announced the device that a cover can the corresponding a plurality of anchor clamps of charger, reduced cost, but it still is only applicable to be subjected to curved test specimen, and the screw thread when changing the pressurized test specimen on its charger place screw rod still can produce larger wearing and tearing; China utility model patent CN2449222Y has announced a kind of in-situ compressor, and the interaction of two steel plates loaded to the brick setting of putting in the inner about it mainly reached by lifting jack, high-strength pull bar, thereby is implemented in the effect of in-site measurement masonry compression strength.But it only is the field measurement apparatus for masonry compression strength, with concrete durability load test and irrelevant.
Summary of the invention
The purpose of this utility model is to provide convenient operation and is suitable for concrete test charger under at the same time pressurized, the load that is subjected to curved and the coupling of many factors and the coupling of many factors.
The purpose of this utility model is achieved in that
Concrete test charger under the utility model load and the coupling of many factors, it is characterized in that: comprise pressing machine, anchor clamps, sensor module, test specimen box, concrete sample and sensor module are installed in the anchor clamps, and anchor clamps are installed in the pressing machine, and the test specimen box is enclosed within the pressing machine outside; Pressing machine comprises pressing machine top board, pressing machine lower platen, press machine draw bar, lifting jack, press machine draw bar is installed between pressing machine top board and the pressing machine lower platen, lifting jack is installed on the pressing machine lower platen, the first circular metal sleeve is set on the pressing machine top board, the second circular metal sleeve is set on the lifting jack; Anchor clamps comprise main clamp and side anchor clamps, main clamp comprises the main clamp top board, the main clamp lower platen, the main clamp pull bar, the main clamp pull bar is installed between main clamp top board and the main clamp lower platen, the first becket that matches with the first circular metal sleeve is set on the main clamp top board, the second becket that matches with the second circular metal sleeve is set on the main clamp lower platen, the side anchor clamps comprise side anchor clamps left pressing plate, the right pressing plate of side anchor clamps, the side clamp pull rod, the side clamp pull rod is installed between side anchor clamps left pressing plate and the right pressing plate of side anchor clamps, first group of distance is set on the side anchor clamps left pressing plate is two semicolumn bonding jumpers of 10cm, second group of distance is set on the right pressing plate of side anchor clamps is two semicolumn bonding jumpers of 30cm, top board and the lower platen of main clamp is close in the upper and lower end face of concrete sample, and left pressing plate and the right pressing plate of side anchor clamps are close in two sides of concrete sample; Sensor module comprises sensor stand, sensor, and sensor is installed between anchor clamps top board and the anchor clamps lower platen by sensor stand.
Advantage of the present utility model is: the utility model is simple in structure, easy to operate, can simulate stress in the Practical Project, chemical erosion, drying and watering cycle or freeze thawing circulation acting in conjunction in the real working condition of concrete component, thereby the data that the laboratory is recorded have more project reference value:
1, loading is finished, and the test specimen behind the anchor clamps location both can carry out atmospheric exposure test, also can cooperate corresponding test specimen box to carry out indoor fast freeze-thaw cyclic test.
2, when cooperating corresponding test specimen box to carry out indoor fast freeze-thaw cyclic test, can support the use with existing fast freeze-thaw circulator.
3, can a while pressurized be provided, be subjected to the experimental situation curved and coupling of many factors test specimen.
4, because the pull bar diameter is unrestricted, thus anchor clamps limit holding capacity can increase to a certain extent, thereby the test specimen that can be suitable for and have high strength more to design.
When 5, anchor clamps load by control and the rectification of pressing machine and sensor, increased loading accuracy, and pressing machine and sensor can corresponding a plurality of anchor clamps, so that regularly adjust anchor clamps, prevent that bar stress is lax, and avoided pressing machine and sensor corroded by objectionable impurities, thereby improved the equipment service efficiency, reduced cost.
Description of drawings
Fig. 1 is the outward appearance skeleton view of concrete test charger under the utility model load and the coupling of many factors;
Fig. 2 is the outward appearance skeleton view of pressing machine in the concrete test charger under the utility model load and the coupling of many factors;
Fig. 3 is the front elevation view of pressing machine in the concrete test charger under the utility model load and the coupling of many factors;
Fig. 4 is the outward appearance skeleton view of side anchor clamps in the concrete test charger under the utility model load and the coupling of many factors;
Fig. 5 is the front elevation view of side anchor clamps in the concrete test charger under the utility model load and the coupling of many factors;
Fig. 6 is the outward appearance skeleton view of main clamp side anchor clamps and concrete sample in the concrete test charger under the utility model load and the coupling of many factors;
Fig. 7 is the front elevation view of concrete test charger side anchor clamps and concrete sample under the utility model load and the coupling of many factors;
Fig. 8 is the outward appearance skeleton view of test specimen box in the concrete test charger under the utility model load and the coupling of many factors;
Fig. 9 is the front elevation view of test specimen box spare in the concrete test charger under the utility model load and the coupling of many factors;
Figure 10 is the assembly structure synoptic diagram of sensor module in the concrete test charger under the utility model load and the coupling of many factors.
Embodiment
For example the utility model is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～10, the concrete test charger is comprised of pressing machine 1, main clamp 2, test specimen box 3, sensor module 4,5 five parts of side anchor clamps under the utility model load and the coupling of many factors.Be described below below in conjunction with connected mode and the effect thereof of accompanying drawing to the utility model all parts:
Pressing machine 1 comprises a top board 6, one next pressing plates 7, and lower platen 7 central authorities are placed with separated type hydraulic jack 10, two pressing plates and connect (referring to Fig. 2) by four pull bars 9 and 8 nuts 8; Main clamp 2 comprises that two the same pressing plate 15, two pressing plates connect (referring to Fig. 6) by four pull bars 17 and 8 nuts 18; Side anchor clamps 5 comprise that 13, one right pressing plate 12, two pressing plates of a left pressing plate are connected by four lower link bars 11 and 8 little nuts 14; Sensor module 4 is comprised of a sensor stand 21 and clock gauge or sensor 20.
The upper lower platen 5 and 7 of pressing machine 1 is made for rectangular metal sheet material of the same area, the upper lower platen 6 and 7 of pressing machine 1 is made for rectangular metal sheet material of the same area, the duct that perforation is all done in relevant position, four angles of two pressing plates, top board 6 central authorities are fixed with a circular metal sleeve.(referring to Fig. 2, Fig. 3).Two the same upper lower platens 15 are made for rectangular metal sheet material of the same area in the main clamp 2, the duct that perforation is all done in relevant position, four angles of two pressing plates, two pressing plates 6 of the Area Ratio pressing machine 1 of main clamp 2 pressing plates 15 and 7 area are little, and also are provided with four screws on the one surface.(referring to Fig. 6, Fig. 7).The left and right sides pressing plate 13 and 12 of side anchor clamps 5 is made for rectangular metal sheet material of the same area, the duct that perforation is all done in relevant position, four angles of two pressing plates, be fixed with two semicolumn bonding jumpers parallel with the rectangular metal plate minor face on the one surperficial middle position of left pressing plate 13, two bonding jumpers are at a distance of 10cm, be fixed with two semicolumn bonding jumpers parallel with the rectangular metal plate minor face on the one surperficial middle position of right pressing plate 12, two bonding jumpers are at a distance of 30cm.Pull bar 9,17 and lower link bar 11 be cylindrical pull bar, the equal car in two ends has screw thread, its screw thread respectively with nut 8,18 and little nut 14 on screw thread be complementary, the get on the bus maximum gauge of threaded portion of pull bar is more smaller than the diameter that does not have the cutting thread zone, the difference of pull bar diameter has formed a step, thereby so that the top board of pressing machine 1 or main clamp 2 can not lower along pull bar idle the time (referring to Fig. 2).Test specimen box 3 is that the floorage of groove is slightly larger than the rectangular area of pressing plate 15, any value (referring to Fig. 8, Fig. 9) in the high desirable 41-53cm of groove by the hexahedron groove of electroplating the upper open-ended that iron sheet or corrosion resistant plate or rubber slab make.Sensor stand 21 main bodys are a square tube, its bottom is fixed on the rectangular metal plate, sheet metal all has circular hole on four angles, size and the position consistency of circular hole size and position and main clamp 2 center platens 15 surperficial screws, the outwardly part of square tube top-side makes it be from the side inverted "L" shaped, and projection is solid metal system, and its upper surface is provided with a duct that connects downwards, side surface is provided with a threaded perforation duct, and the duct is provided with bolt 22(referring to Figure 10).
Draw mark by the four-point bending test standard at the corresponding stressed place of concrete sample 19 first during use, make in the side anchor clamps 5 that the respective token place is in contact with one another on the semicolumn bonding jumper on the left pressing plate 13 and right pressing plate 12 and concrete sample 19, lower link bar 11 and little nut 14 are loaded onto in four angles of two side guides, use torque spanner to tighten little nut 14 so that the bending stress that is subjected to of concrete sample 19 reaches its experiment design load, afterwards concrete sample 19 is put into main clamp 2 middle positions, four screws of circular hole on four angles of sensor stand 21 bottom metal with main clamp 2 center platens 15 surfaces are alignd, the screw of screwing on is fixed both, the duct of the perforation of sensor stand upper surface is inserted on one side of clock gauge or sensor 20 non-contacts, another side contacts with another pressing plate 15 in the main clamp 2, after 22 above integral body is put into pressing machine 1 tighting a bolt, then operate oil pump and drive separated type hydraulic jack 10, make main clamp 2 be loaded into design load, lay down the pressure of lifting jack 10 behind the fastening nut 18, the reading of observing clock gauge or sensor 20 changes, again be loaded into the pressure that fastening nut 18 after clock gauge or the sensor 20 reading generation inverse change is laid down lifting jack 10 with lifting jack 10 again, repeat this process repeatedly only behind the pressure of laying down lifting jack 10 the front reading of clock gauge or sensor 20 readings and for the first time loading the same, then integral body shifts out pressing machine 1, take off clock gauge or sensor 20, at pull bar 17 and nut 18, lower link bar 11 and little nut 14 contact positions are coated with one deck fluid sealant, last integral body can move on to the outdoor exposure test of carrying out, also can put into corresponding test specimen box 3, all put into again the fast freeze-thaw circulation testing machine and carry out the fast freeze-thaw cyclic test, slice off fluid sealant on main clamp 2 and the side anchor clamps 5 with instrument during unloading, again main clamp 2 is put back in the pressing machine 1, then operate oil pump and drive separated type hydraulic jack 10, make main clamp 2 be loaded into design load, unscrew the pressure of laying down lifting jack 10 behind the nut 18, again concrete sample 19 and side anchor clamps 5 integral body are shifted out pressing machine 1, unscrew little nut 14 on the side anchor clamps 5 with spanner, take out concrete sample 19.When carrying out exposure test, every exposure a period of time main clamp 2 and side anchor clamps 5 will repeat the process that once unloads and load, the corrosion sign occurs if any the place and want timely painting.
Claims (1)
1. concrete test charger under the coupling of load and many factors, it is characterized in that: comprise pressing machine, anchor clamps, sensor module, test specimen box, concrete sample and sensor module are installed in the anchor clamps, and anchor clamps are installed in the pressing machine, and the test specimen box is enclosed within the pressing machine outside; Pressing machine comprises pressing machine top board, pressing machine lower platen, press machine draw bar, lifting jack, press machine draw bar is installed between pressing machine top board and the pressing machine lower platen, lifting jack is installed on the pressing machine lower platen, the first circular metal sleeve is set on the pressing machine top board, the second circular metal sleeve is set on the lifting jack; Anchor clamps comprise main clamp and side anchor clamps, main clamp comprises the main clamp top board, the main clamp lower platen, the main clamp pull bar, the main clamp pull bar is installed between main clamp top board and the main clamp lower platen, the first becket that matches with the first circular metal sleeve is set on the main clamp top board, the second becket that matches with the second circular metal sleeve is set on the main clamp lower platen, the side anchor clamps comprise side anchor clamps left pressing plate, the right pressing plate of side anchor clamps, the side clamp pull rod, the side clamp pull rod is installed between side anchor clamps left pressing plate and the right pressing plate of side anchor clamps, first group of distance is set on the side anchor clamps left pressing plate is two semicolumn bonding jumpers of 10cm, second group of distance is set on the right pressing plate of side anchor clamps is two semicolumn bonding jumpers of 30cm, top board and the lower platen of main clamp is close in the upper and lower end face of concrete sample, and left pressing plate and the right pressing plate of side anchor clamps are close in two sides of concrete sample; Sensor module comprises sensor stand, sensor, and sensor is installed between anchor clamps top board and the anchor clamps lower platen by sensor stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310312 CN202814778U (en) | 2012-06-29 | 2012-06-29 | Concrete experiment loading device under coupling effect of load and multiple factors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310312 CN202814778U (en) | 2012-06-29 | 2012-06-29 | Concrete experiment loading device under coupling effect of load and multiple factors |
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| Publication Number | Publication Date |
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| CN202814778U true CN202814778U (en) | 2013-03-20 |
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| CN 201220310312 Expired - Fee Related CN202814778U (en) | 2012-06-29 | 2012-06-29 | Concrete experiment loading device under coupling effect of load and multiple factors |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778389A (en) * | 2012-06-29 | 2012-11-14 | 哈尔滨工程大学 | Concrete test loading device and test method under load and multifactor coupling |
| CN105158441A (en) * | 2015-09-19 | 2015-12-16 | 桂林理工大学 | Device for dry-wet cycle under condition of simulating soil bearing in engineering |
| CN106501103A (en) * | 2016-10-21 | 2017-03-15 | 西南交通大学 | A kind of decay test device and method |
| CN110320106A (en) * | 2019-08-12 | 2019-10-11 | 山西煤矿机械制造股份有限公司 | A kind of dumbbell pin factory strength test device |
-
2012
- 2012-06-29 CN CN 201220310312 patent/CN202814778U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778389A (en) * | 2012-06-29 | 2012-11-14 | 哈尔滨工程大学 | Concrete test loading device and test method under load and multifactor coupling |
| CN102778389B (en) * | 2012-06-29 | 2014-07-30 | 哈尔滨工程大学 | Concrete test loading device and test method under load and multifactor coupling |
| CN105158441A (en) * | 2015-09-19 | 2015-12-16 | 桂林理工大学 | Device for dry-wet cycle under condition of simulating soil bearing in engineering |
| CN106501103A (en) * | 2016-10-21 | 2017-03-15 | 西南交通大学 | A kind of decay test device and method |
| CN110320106A (en) * | 2019-08-12 | 2019-10-11 | 山西煤矿机械制造股份有限公司 | A kind of dumbbell pin factory strength test device |
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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 |
Granted publication date: 20130320 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |