CN217332032U - Concrete test block high temperature mechanical properties testing arrangement - Google Patents
Concrete test block high temperature mechanical properties testing arrangement Download PDFInfo
- Publication number
- CN217332032U CN217332032U CN202121984166.3U CN202121984166U CN217332032U CN 217332032 U CN217332032 U CN 217332032U CN 202121984166 U CN202121984166 U CN 202121984166U CN 217332032 U CN217332032 U CN 217332032U
- Authority
- CN
- China
- Prior art keywords
- pressure head
- concrete test
- test piece
- high temperature
- force transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 91
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000010453 quartz Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a concrete test block high temperature mechanical properties testing arrangement, including loading system, stove frame, displacement measurement system, rigidity auxiliary system, concrete test piece, force transmission system and guide rail, loading system passes through bolted connection with transmission system, rigidity auxiliary system passes through the location steel sheet and is connected with loading system, the stove frame is located on the guide rail through the gyro wheel frame, displacement measurement system passes through bushing with stove frame. The utility model discloses the device has higher suitability and maneuverability, when letting the test piece satisfy the high temperature atress, the complete concrete test piece overall process stress strain relation that obtains. Meanwhile, the test platform meets the requirement of rapid industrialization, can be preprocessed in a factory and directly spliced on a construction site, and lays a foundation for popularization of high-temperature mechanical tests.
Description
Technical Field
The utility model belongs to the civil engineering field relates to a high temperature mechanical test device, concretely relates to concrete test block high temperature mechanical properties testing arrangement.
Background
The fire hazard is a frequent disaster which endangers the safety of a building structure, and under the action of the high temperature of the fire hazard, the mechanical property of a concrete material is greatly attenuated, so that the bearing capacity of the structure and a member at the high temperature is reduced, and finally the structure is damaged to a certain extent or even collapses. In 2001, 9 and 11 days, the American world trade building has serious fire after being collided by an airplane, the main structure collapses under the high temperature of the fire, and finally about 2998 people die, and similar serious building fire cases often happen. Therefore, the high-temperature loading test of the test piece has great significance for structural design.
In the current experimental research, the test instrument is limited, most tests adopt a test mode of firstly heating and then loading until a test piece is damaged, namely, firstly heating to a design temperature by using a furnace, then taking out the test piece and placing the test piece in a press machine to test the ultimate bearing capacity of the test piece. The advantage of this test mode is that the instrument is used separately and is simple to operate. However, in a practical situation, the test piece is inevitably loaded while being heated, so that the mechanical property of the test piece under a high-temperature condition cannot be well simulated in the current test mode. And because the test piece is at high temperature in the test process, the conventional method for measuring the displacement of the test piece is not suitable. Meanwhile, after the concrete test piece passes through the elastoplasticity stage, the plasticity of the test piece is increased, and the falling section of the test piece is difficult to measure. Therefore, it is necessary to provide a new device for testing the high-temperature mechanical properties of a concrete test block to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of current test instrument, the concrete test block high temperature mechanical properties testing arrangement who provides, this testing arrangement has higher suitability and maneuverability, when letting the test piece satisfy the high temperature atress, the complete concrete test piece overall process stress strain relation that obtains. Meanwhile, the test platform meets the requirement of rapid industrialization, can be preprocessed in a factory and directly spliced on a construction site, and lays a foundation for popularization of high-temperature mechanical tests.
The utility model adopts the technical proposal that: a device for testing the high-temperature mechanical property of a concrete test block comprises a loading system, a furnace frame, a displacement measurement system, a rigidity auxiliary system, a concrete test block, a force transmission system and a guide rail;
the test piece is placed in the center between an upper pressure head and a lower pressure head of the force transmission system, the upper pressure head and the lower pressure head of the transmission system are connected with an upper pressure plate and a lower pressure plate connecting groove of the loading system through bolts, the rigid auxiliary system is connected with a lower pressure plate of the loading system through bolts, guide rails are arranged on two outer sides of the loading system, the furnace frame is placed on the guide rails, the furnace frame is arranged on the furnace frame, and the furnace frame can move on the guide rails so as to achieve the functions of opening and closing a furnace; the displacement measuring system is connected with the furnace frame through a sleeve;
the rigid auxiliary system comprises a force transmission steel pipe, a belleville spring and a positioning steel plate, the belleville spring is connected below the force transmission steel pipe, the positioning steel plate is connected below the belleville spring, and the positioning steel plate is connected with a lower pressing plate of the loading system through a positioning steel plate bolt;
the displacement measurement system comprises a vertical rod piece, a transverse rod piece, a high-temperature-resistant steel plate, a displacement meter and a quartz rod; be connected with vertical member on the stove frame, vertical member is two, and vertical member upper end is connected with horizontal member, and horizontal member is two sections telescopic round steel and forms, and displacement meter is placed in horizontal member tip drilling, and the quartz stick of displacement meter bottom installation is arranged in simultaneously on the high temperature resistant steel sheet, displacement meter and quartz stick keep vertical, two high temperature resistant steel sheets respectively with last pressure head and the lower pressure head of force transfer system pass through welded connection.
Preferably, the upper pressure head and the lower pressure head of the transmission device are made of stainless steel 310s or other high-temperature resistant steel materials.
Preferably, holes are formed in the side face of the furnace, quartz glass is arranged on the side face of the furnace, and the test condition can be observed conveniently while heat is preserved.
Preferably, the rigid auxiliary system adopts a structure that a thick steel pipe is connected with one or more belleville springs in series, and the belleville springs adopt 60Si2MnA steel or other spring steel materials.
The utility model discloses through removing the fire furnace frame in experimental preparation stage, can realize switching closed stove, change test piece, adjustment displacement measurement system. And in the test stage, the furnace frame is moved to close the furnace, the temperature is raised and the test piece is loaded, and the displacement of the test piece is led out of the furnace through a quartz rod of the test piece displacement measurement system so as to obtain the displacement data of the whole process of the test piece. The utility model discloses mainly through the combination of multiple different functional system, satisfy the demand of overall process test data stabilization under the condition of guaranteeing the high temperature atress. The quantity of the disc springs in the rigid auxiliary system is determined by calculation according to the stress of the test piece. And placing the concrete sample in a furnace, placing the concrete sample in the middle position of the upper pressure head and the lower pressure head, and closing the furnace for testing. The utility model discloses when letting the test piece satisfy the high temperature atress, the effectual test piece that obtains descends section measured data realizes the test piece stress-strain overall process record. And the displacement of the test piece is led out through the displacement measurement system, and the displacement data of the test piece is reliably and stably recorded.
Has the advantages that: the utility model discloses a vertical member overall process high temperature load test device when letting the test piece satisfy the high temperature atress, effectually obtains test piece descending branch measured data, realizes the test piece overall process test record. And the displacement of the test piece is led out through the displacement measurement system, and the displacement data of the test piece is effectively recorded.
Drawings
FIG. 1 is a schematic structural view of the high-temperature mechanical property testing device for a concrete test block of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a schematic view of a test piece displacement measurement system of the high-temperature mechanical property testing device for a concrete test block of the present invention;
fig. 5 is the utility model relates to a concrete test block high temperature mechanical properties testing arrangement rigidity auxiliary system schematic diagram.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-5: a device for testing the high-temperature mechanical properties of a concrete test block comprises a loading system 1, a furnace 2, a furnace frame 3, a displacement measurement system 4, a rigidity auxiliary system 5, a concrete test block 6, a force transmission system 7 and a guide rail 8;
the test piece 6 is placed in the center between an upper pressure head 9 and a lower pressure head 15 of the force transmission system 7, the upper pressure head 9 and the lower pressure head 15 of the transmission system 7 are connected with an upper pressure plate and a lower pressure plate 19 of the loading system 1 through bolts, the rigid auxiliary system 5 is connected with a lower pressure plate 19 of the loading system 1 through bolts, guide rails 8 are arranged on two outer sides of the loading system 1, the stove frame 3 is placed on the guide rails 8, the stove 2 is erected on the stove frame 3, and the stove frame can move on the guide rails 8 to achieve the opening and closing functions of the stove 2; the displacement measuring system 4 is connected with the furnace frame 3 through a sleeve;
the rigid auxiliary system 5 comprises a force transmission steel pipe 16, a belleville spring 17 and a positioning steel plate 18, the belleville spring 17 is connected below the force transmission steel pipe 16, the positioning steel plate 18 is connected below the belleville spring 17, and the positioning steel plate 18 is in bolt connection with a lower pressing plate 19 of the loading system 1 through the positioning steel plate 18;
the displacement measurement system 4 comprises a vertical rod 11, a transverse rod 10, a high-temperature-resistant steel plate 12, a displacement meter 13 and a quartz rod 14; one section reinforcing bar of welding on the stove frame 3 with the pipe bushing of vertical member 11, vertical member 11 are two, and 11 upper ends of vertical member are connected with horizontal member 10, and horizontal member 10 is two sections telescopic round steel and constitutes, and displacement meter 13 is placed in the drilling of horizontal member 10 tip, and quartz rod 14 is installed to displacement meter 13 bottom, and quartz rod 14 is arranged in simultaneously on the high temperature resistant steel sheet 12, displacement meter 13 keeps vertical with quartz rod 14, two high temperature resistant steel sheets 12 respectively with last pressure head 9 and the lower pressure head 15 of force transfer system 7 pass through welded connection.
The upper pressure head 9 and the lower pressure head 15 of the force transmission system 7 are made of stainless steel 310s or other high-temperature resistant steel materials. The side of the furnace 2 is provided with a hole and is provided with quartz glass. The disc spring 17 is made of 60Si2MnA steel or other spring steel materials.
The embodiments of the present invention are described in detail with reference to the drawings and the specific embodiments, but the present invention is not limited to the described embodiments. To those skilled in the art, many changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a concrete test block high temperature mechanical properties testing arrangement which characterized in that: the device comprises a loading system, a furnace frame, a displacement measurement system, a rigidity auxiliary system, a concrete test piece, a force transmission system and a guide rail;
the test piece is placed in the center between an upper pressure head and a lower pressure head of the force transmission system, the upper pressure head and the lower pressure head of the force transmission system are connected with connecting grooves of an upper pressing plate and a lower pressing plate of the loading system through bolts, the rigid auxiliary system is connected with the lower pressing plate of the loading system through bolts, guide rails are arranged on two outer sides of the loading system, the furnace frame is placed on the guide rails, the furnace frame is arranged on the furnace frame, and the displacement measurement system is connected with the furnace frame through a sleeve;
the rigid auxiliary system comprises a force transmission steel pipe, a belleville spring and a positioning steel plate, the belleville spring is connected below the force transmission steel pipe, the positioning steel plate is connected below the belleville spring, and the positioning steel plate is connected with a lower pressing plate of the loading system through a positioning steel plate bolt;
the displacement measurement system comprises a vertical rod piece, a transverse rod piece, a high-temperature-resistant steel plate, a displacement meter and a quartz rod; be connected with vertical member on the stove frame, vertical member is two, and vertical member upper end is connected with horizontal member, and horizontal member is two sections telescopic round steel and forms, and displacement meter is placed in horizontal member tip drilling, and the quartz stick of displacement meter bottom installation is arranged in simultaneously on the high temperature resistant steel sheet, displacement meter and quartz stick keep vertical, two high temperature resistant steel sheets respectively with last pressure head and the lower pressure head of force transfer system pass through welded connection.
2. The device for testing the high-temperature mechanical property of the concrete test block according to claim 1, characterized in that: the materials of an upper pressure head and a lower pressure head of the force transmission system adopt stainless steel 310s or other high-temperature resistant steel materials.
3. The device for testing the high-temperature mechanical property of the concrete test block according to claim 1, characterized in that: the side of the furnace is provided with a hole and is provided with quartz glass.
4. The device for testing the high-temperature mechanical property of the concrete test block according to claim 1, which is characterized in that: the belleville spring is made of 60Si2MnA steel or other spring steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121984166.3U CN217332032U (en) | 2021-08-23 | 2021-08-23 | Concrete test block high temperature mechanical properties testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121984166.3U CN217332032U (en) | 2021-08-23 | 2021-08-23 | Concrete test block high temperature mechanical properties testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217332032U true CN217332032U (en) | 2022-08-30 |
Family
ID=82945794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121984166.3U Expired - Fee Related CN217332032U (en) | 2021-08-23 | 2021-08-23 | Concrete test block high temperature mechanical properties testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217332032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607592A (en) * | 2021-08-23 | 2021-11-05 | 南京工业大学 | Concrete test block high temperature mechanical properties testing arrangement |
-
2021
- 2021-08-23 CN CN202121984166.3U patent/CN217332032U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607592A (en) * | 2021-08-23 | 2021-11-05 | 南京工业大学 | Concrete test block high temperature mechanical properties testing arrangement |
| CN113607592B (en) * | 2021-08-23 | 2024-09-06 | 南京工业大学 | High-temperature mechanical property testing device for concrete test block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162774B (en) | Steel-structure distribution-girder-type double-track whole opening box girder static load test device and construction method thereof | |
| CN204536179U (en) | Thermal-mechanical Coupling experiment all-in-one | |
| CN102621010A (en) | Multifunctional testing machine for deep surrounding rock anchoring performance | |
| CN101408537B (en) | Fire-proof general-purpose test device of wall, column and frame node structures | |
| CN217332032U (en) | Concrete test block high temperature mechanical properties testing arrangement | |
| CN202256032U (en) | Mechanism for applying load on refractory material tester | |
| CN202599766U (en) | Multifunctional test machine for anchorage performance of deep surrounding rock | |
| CN205642868U (en) | Two -way load combined action capability test device of herringbone post node | |
| CN102346112B (en) | Load applying method of refractory material tester | |
| CN205679468U (en) | A kind of anchor rod drawing test hydraulic support device | |
| CN111879634B (en) | Impact system capable of realizing multi-disaster coupling working condition | |
| CN102589986A (en) | Small bending-purposed changeable supporting-type experiment tamp for thin-plate material | |
| CN203334187U (en) | Bracket pre-pressing structure | |
| CN113607592A (en) | Concrete test block high temperature mechanical properties testing arrangement | |
| CN110376074A (en) | Full-size vertical component high-temperature loading system | |
| CN103063514B (en) | Radial inclination compressive strength test device for round-section concrete-filled steel tube | |
| CN203083887U (en) | Tube pile anti-bending testing device | |
| Sun et al. | Study on mechanical properties of truss cable structure under low cyclic loading | |
| CN117491129A (en) | Load-bearing fire-resistant test device and test method for long-span suspension bridge steel truss girder | |
| CN205262878U (en) | Bending test machine in concrete material high temperature | |
| CN202928901U (en) | Novel bending test device for tubular pile | |
| CN203535014U (en) | Asphalt mixture acoustic emission tester | |
| CN110174349A (en) | High temperature down-pressing type steel plate and concrete composite plate push out test device and method | |
| CN217277551U (en) | Steel strength testing mechanism for building detection | |
| CN203275106U (en) | Single /double layer lining structure prototype test apparatus of shield tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |