CN112747879B - Anti-seismic support and hanger component and inclined strut component anti-seismic performance testing equipment and method - Google Patents
Anti-seismic support and hanger component and inclined strut component anti-seismic performance testing equipment and method Download PDFInfo
- Publication number
- CN112747879B CN112747879B CN202011641300.XA CN202011641300A CN112747879B CN 112747879 B CN112747879 B CN 112747879B CN 202011641300 A CN202011641300 A CN 202011641300A CN 112747879 B CN112747879 B CN 112747879B
- Authority
- CN
- China
- Prior art keywords
- piece
- guide rail
- seismic
- test
- fixed
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 201
- 238000000034 method Methods 0.000 title claims abstract description 22
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 67
- 239000010959 steel Substances 0.000 claims description 67
- 238000006073 displacement reaction Methods 0.000 claims description 58
- 230000009471 action Effects 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000011056 performance test Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
Abstract
The invention discloses an anti-seismic performance testing device and method for an anti-seismic support and hanger component and an inclined strut component. The alternating stress impact is applied to the to-be-tested pieces through the fixed guide rail so as to simulate the stress characteristics and deformation characteristics of the to-be-tested pieces in the cyclic reciprocating motion during an earthquake, and the effect of the to-be-tested pieces during the vibration is obtained through a quasi-static method, so that the aim of verifying in advance is fulfilled, and the earthquake-resistant mechanical properties of the to-be-tested pieces are tested more conveniently and rapidly.
Description
Technical Field
The invention relates to the technical field of anti-seismic support and hanger testing, in particular to anti-seismic performance testing equipment and method for anti-seismic support and hanger components and diagonal bracing assemblies.
Background
The earthquake hazard not only directly threatens the life and property safety of human beings, but also comprises secondary disasters such as floods, fires, toxic gas pollution and the like caused by the earthquake, therefore, the national enforcement of the national standard of mandatory national science and technology GB50981-2014 on 8 th month 1 st 2015 is formally carried out, the normal work of an electromechanical system after the earthquake action is ensured, so as to cope with the secondary disasters, and the influence of the earthquake disasters on people is minimized. According to the specification of national standard GB50981-2014 'building electromechanical engineering anti-seismic design Specification' 8.2.5, anti-seismic connecting members, tube bundles, anchoring bodies and the like in anti-seismic support and hanger are required to carry out strength checking in the project implementation process, but because the products relate to special structures, the products do not belong to standard components, the design value of the bearing capacity of the members cannot be calculated through simple calculation, and only the test can be passed.
The existing test methods are two, namely, the cyclic loading tester is used for testing a bracket assembly (a whole set of bracket), the size, the form, the type and the like of the bracket are different due to the complexity and the diversity of actual construction environments, the universality is low, the test results are not consistent with the actual conditions easily due to the use of the same set of test equipment and the test method thereof, the specific anti-seismic performance index of the component cannot be provided for design units and application clients, and the clients are difficult to carry out scientific and accurate scheme design; secondly, the device can only load unidirectionally by using a universal loading tester to test the support component (single component), the single component only performs unidirectional tensile or compressive resistance in the test process, however, the function generated by an earthquake is to do cyclic reciprocating motion, and building materials such as steel materials can generate fatigue in the reciprocating motion process, so that the stress performance of the materials is reduced, and therefore, the real anti-seismic performance of the component cannot be obtained by adopting the unidirectional loading test method.
Therefore, a more scientific and reasonable method is needed to test the earthquake resistance of the earthquake-resistant support and hanger, so that a designer can obtain the real earthquake resistance of the earthquake-resistant support and hanger, and a more scientific and reliable scheme design is carried out according to the earthquake resistance of the product.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an anti-seismic performance testing device and method for an anti-seismic support and hanger component and an inclined strut component.
The technical scheme of the invention is as follows:
an anti-seismic performance test device for anti-seismic support and hanger components and diagonal bracing components comprises
The power source is connected with the control center and outputs a test load under the control of the control center;
the fixed guide rail is connected with the power source, one end of the to-be-tested piece is fixed on the fixed guide rail, and the test load output by the power source acts on the same action point of the to-be-tested piece through the fixed guide rail;
the other end of the piece to be detected is fixedly connected with the positioning piece;
and the connection part of the fixed guide rail and the power source is provided with a plurality of sensors.
The sensor comprises a displacement sensor and a force value sensor.
The anti-seismic performance testing equipment for the anti-seismic support and hanger component and the diagonal bracing component further comprises a frame, wherein a fixing plate is arranged on one side of the frame, a plurality of oblong holes are formed in the fixing plate, and the oblong holes are fixedly connected with the positioning pieces.
Further, the rear surface of the locating piece is provided with a plurality of mounting holes, and the locating piece is fixedly connected with the fixing plate through the mounting holes.
According to the anti-seismic performance testing equipment for the anti-seismic support and hanger component and the diagonal bracing component, the fixed guide rail is provided with the plurality of fixing holes, and one end of the piece to be tested is fixedly connected with the fixed guide rail through the fixing holes.
Further, the aperture of the fixing hole is 12 mm.
Further, a bolt fixing seat is arranged on the fixed guide rail, the bolt fixing seat is connected with the fixing hole through a bolt, and one end of the piece to be detected is connected with the fixed guide rail through the bolt fixing seat.
According to the anti-seismic performance testing equipment for the anti-seismic support and hanger component and the diagonal bracing component, the bottom of the fixed guide rail is connected with the sliding mechanism, and the fixed guide rail slides along the sliding mechanism under the action of the test load.
Further, the bottom of the fixed guide rail is fixedly connected with a sliding block, the sliding block is in sliding connection with a sliding rail, and the fixed guide rail slides along the sliding rail under the action of the test load.
The anti-seismic support and hanger component and the inclined strut component anti-seismic performance testing equipment are characterized in that the to-be-tested component comprises an anti-seismic inclined strut and a connecting piece, and the anti-seismic inclined strut is fixedly connected with the fixed guide rail and the positioning piece respectively through the connecting piece.
Further, the connecting piece is a building structure connecting piece, the building structure connecting piece comprises a movable piece and a fixed piece, the movable piece is hinged with the fixed piece, and the movable piece is fixedly connected with the anti-seismic diagonal bracing;
both ends of the anti-seismic diagonal bracing are respectively connected with the positioning piece and the fixed guide rail through the building structure connecting piece,
or alternatively, the first and second heat exchangers may be,
the anti-seismic diagonal bracing is fixedly connected with the fixed guide rail, and the building structure connecting piece is fixedly connected with the positioning piece;
the locating piece is an L-shaped jig formed by splicing angle steel or plates, triangular supports are arranged on two sides of the angle steel or the L-shaped jig, a plurality of locating holes are formed in the upper surface of the angle steel or the L-shaped jig, and the building structure connecting piece is fixedly connected with the angle steel or the L-shaped jig through the locating holes.
Further, the connecting piece is a pipeline connecting clamp, the pipeline connecting clamp is fixedly connected with the anti-seismic diagonal bracing through a connecting member, one end of the connecting member is fixedly connected with the pipeline connecting clamp through a bolt, a clamping part is arranged at the other end of the connecting member, and the connecting member is fixedly connected with the anti-seismic diagonal bracing through the clamping part;
the anti-seismic diagonal bracing is fixedly connected with the fixed guide rail;
the locating piece comprises a locating base and a connecting pipe fitting, wherein the connecting pipe fitting is fixed between the side walls of two ends of the locating base, and the pipeline connecting clamp is sleeved outside the connecting pipe fitting and fixedly connected with the connecting pipe fitting.
Further, the connecting piece comprises a building structure connecting piece and a steel structure clamp, the building structure connecting piece comprises a fixed piece and a movable piece, the fixed piece is hinged with the movable piece, the movable piece is fixedly connected with the anti-seismic diagonal bracing, the fixed piece is connected with the steel structure clamp, and the steel structure clamp is fixedly connected with the positioning piece;
the locating piece is a steel plate or a section steel machined piece with wing plates arranged at the upper end and the lower end, and the steel structure clamp clamps one of the wing plates, so that the locating piece is fixedly connected with the connecting piece.
Still further, the shaped steel machined part is H shaped steel, C shaped steel or angle steel that has pterygoid lamina structure.
Further, the connecting piece comprises a steel structure clamp and a fixing piece, the steel structure clamp is connected with one end of the fixing piece, the other end of the fixing piece is connected with one end of the anti-seismic diagonal bracing through a bolt,
the other end of the anti-seismic diagonal bracing is connected with the fixed guide rail;
the locating piece is a steel plate or a section steel machined piece with wing plates arranged at the upper end and the lower end, and the steel structure clamp clamps one of the wing plates, so that the locating piece is fixedly connected with the connecting piece.
Still further, the shaped steel machined part is H shaped steel, C shaped steel or angle steel that has pterygoid lamina structure.
According to the anti-seismic performance testing equipment for the anti-seismic support and hanger component and the diagonal bracing component, the included angle between the to-be-tested piece and the vertical direction is 30-90 degrees.
Preferably, the included angle between the to-be-measured piece and the vertical direction is 45 degrees.
According to the anti-seismic support and hanger component and the inclined strut component anti-seismic performance testing equipment, the power source, the fixed guide rail, the to-be-tested piece and the gravity center of the positioning piece are all on the same vertical plane.
A method for testing the anti-seismic performance of an anti-seismic support and hanger component and an inclined strut component comprises the following testing steps:
s10, fixing the piece to be tested on test equipment;
s20, setting test termination conditions;
s30, applying a first test load at a test action point of the piece to be tested, wherein the first test load changes in a sine function, and stopping applying the first test load after the first test load is applied for a fixed period number; applying a second test load to the same test action point of the to-be-tested piece until any test termination condition is met, stopping applying the second test load, wherein the second test load changes in a sine function along with time, and the peak value of the later sine period of the second test load is a plurality of times of the peak value of the former sine period;
or alternatively, the first and second heat exchangers may be,
the to-be-tested piece is connected with the fixed guide rail, the fixed guide rail circularly reciprocates by taking the first target displacement as the maximum displacement, and after the circular reciprocation passes through a fixed period number, the fixed guide rail circularly reciprocates by taking the second target displacement as the maximum displacement, and the maximum displacement of the latter cycle period is a plurality of times of the maximum displacement of the former cycle period;
and S40, the test equipment records and outputs test data and test charts.
The method for testing the anti-seismic performance of the anti-seismic support and hanger component and the diagonal bracing component comprises the following steps of:
(1) The test cycle number reaches the set cycle number;
(2) The second test load reaches a set peak value;
(3) The deformation amount of the piece to be detected is larger than the set deformation amount;
(4) The test cycle number reaches a set cycle number and the second test load reaches a set peak value;
(5) The piece to be detected is damaged;
(6) The second target displacement reaches a set displacement value.
Further, the set number of cycles is not more than 55.
Further, the set peak is not more than 50kN.
Further, the set deformation amount is not more than 18 mm.
According to the anti-seismic support and hanger component and the anti-seismic performance testing method of the diagonal support component, the peak value of the later sine period of the second test load is the peak value of the former sine periodMultiple times.
According to the anti-seismic support and hanger component and diagonal brace component anti-seismic performance testing method, the testing data comprise the testing load of the to-be-tested piece, the displacement of the to-be-tested piece and time information related to the testing load and the displacement of the to-be-tested piece, and the testing chart comprises a time-testing load chart of the to-be-tested piece, a displacement-testing load chart of the to-be-tested piece and a time-displacement chart of the to-be-tested piece.
According to the scheme, the device has the beneficial effects that the device is used for fixing the to-be-tested piece through the testing equipment, and the testing equipment is provided with the fixed guide rail and different positioning pieces for fixing the two ends of the to-be-tested piece so as to test the anti-seismic performance of the to-be-tested piece with different lengths and different angles. The invention independently tests the component to be tested, and the premise is that the strength of other connecting components (non-object to be evaluated) in the component to be tested is enough large, and the deformation is small enough in the test process, so that the deformation is reflected on the component to be tested. The alternating stress impact is applied to the to-be-tested pieces through the fixed guide rail so as to simulate the stress characteristics and deformation characteristics of the to-be-tested pieces in the cyclic reciprocating motion during an earthquake, and the effect of the to-be-tested pieces during the vibration is obtained through a quasi-static method, so that the aim of verifying in advance is fulfilled, and the earthquake-resistant mechanical properties of the to-be-tested pieces are tested more conveniently and rapidly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a part to be tested according to the first embodiment.
Fig. 3 is a schematic partial structure of a part to be tested fixed on a testing apparatus according to the first embodiment.
Fig. 4 is a schematic structural diagram of a part to be tested according to the second embodiment.
Fig. 5 is a schematic partial structure of the part to be tested fixed on the testing apparatus according to the second embodiment.
Fig. 6 is a schematic structural diagram of a part to be tested according to the third embodiment.
Fig. 7 is a schematic partial structure of the part to be tested fixed on the testing apparatus according to the third embodiment.
Fig. 8 is a schematic structural diagram of a part to be tested according to the fourth embodiment.
Fig. 9 is a schematic partial structure of the part to be tested fixed on the testing apparatus according to the fourth embodiment.
Fig. 10 is a schematic structural diagram of a part to be tested according to the fifth embodiment.
Fig. 11 is a schematic partial structure of the part to be tested fixed on the testing apparatus according to the fifth embodiment.
Wherein, each reference sign in the figure:
1. a frame; 11. a fixing plate; 12. a slotted hole;
2. a positioning piece; 21. a mounting hole; 22. angle steel; 221. triangular support; 222. positioning holes; 231. positioning a base; 232. connecting the pipe fittings; 24. a steel plate;
3. a piece to be measured; 31. an anti-seismic diagonal bracing; 311. a connection hole; 32. a connecting piece; 321. a building structure connector; 3211. a fixing member; 3212. a movable member; 322. a steel structure clamp; 323. a pipe connection clamp; 3231. a connecting member;
4. a fixed guide rail; 41. a fixing hole;
5. a power source;
6. a sensor;
7. a control hub;
8. the bolt fixing seat.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
As shown in figure 1, a positioning piece 2, a piece 3 to be tested, a fixed guide rail 4, a sensor 6, a power source 5, a control center 7 and a bolt fixing seat 8 are arranged on a rack 1.
The right side of the frame 1 is provided with a power source 5, and the power source 5 is connected with a control center 7 and outputs a test load under the control of the control center 7. The power source 5 comprises a servo motor, a speed reducer and a transmission mechanism, one end of the transmission mechanism is connected with the servo motor, and the other end of the transmission mechanism is connected with the fixed guide rail 4. Under the action of the servo motor, the transmission mechanism reciprocates along the horizontal axis of the transmission mechanism, and the piece to be measured 3 fixed on the fixed guide rail 4 is continuously extruded or stretched through the fixed guide rail 4. The tester can change the speed and frequency of the servo motor through the control center 7, thereby changing the test load applied to the part 3 to be tested. In one embodiment, the stroke of the servo motor is + -100 mm.
In one embodiment, the frame 1 is composed of a rigid skeleton.
The fixed guide rail 4 is connected with the power source 5, one end of the piece 3 to be tested is fixed on the fixed guide rail 4, and test loads in different directions output by the power source 5 act on the same action point of the piece 3 to be tested through the fixed guide rail 4, namely, in a complete test process, the test loads all act on the unified action point of the piece 3 to be tested.
In one embodiment, the bottom of the fixed rail 4 is fixedly connected with a slider, the slider is in sliding connection with a slide rail, and the fixed rail 4 slides along the slide rail under the action of a test load. During testing, the power source 5 outputs a test load, so that the fixed guide rail 4 moves along the sliding rail, the sliding rail is smooth enough to ignore friction force between the fixed guide rail 4 and the fixed guide rail 4, the test load is transmitted to the to-be-tested piece 3 through the fixed guide rail 4, and when the to-be-tested piece 3 deforms or displaces, the fixed guide rail 4 and the sliding rail slide relatively, so that the deformation or displacement of the to-be-tested piece 3 is expressed.
The upper surface of the fixed rail 4 is provided with a plurality of fixing holes 41, and one end of the member 3 to be measured is fixedly connected with the fixed rail 4 through the fixing holes 41 by various connecting members 32 or fixing seats. In one embodiment, the fixed rail 4 is provided with a bolt fixing seat 8, the bolt fixing seat 8 is connected with the fixing hole 41 through a bolt, and one end of the piece 3 to be tested is provided with a connecting hole 311. One end of the piece 3 to be measured stretches into the space between the two wings of the bolt fixing seat 8, and penetrates through the bolt fixing seat 8 and the connecting hole 311 through the bolt, so that one end of the piece 3 to be measured is connected with the fixed guide rail 4 through the bolt fixing seat 8.
In one embodiment, the aperture of the fixing hole 41 is 12 mm. The aperture size of the fixing hole 41 is not limited, and the workpiece 3 to be measured may be fixed.
The left side of frame 1 sets up fixed plate 11, and in one embodiment, set up a plurality of slotted hole 12 on the fixed plate 11, fixed plate 11 passes through these slotted holes 12 and setting element 2 fixed connection, and the other end and the setting element 2 fixed connection of piece 3 await measuring for the other end of piece 3 await measuring is fixed in the left side of frame 1. The rear surface of setting element 2 sets up a plurality of mounting hole 21, and this mounting hole 21 also is oblong, and the central axis of mounting hole 21 is perpendicular with the central axis of oblong hole 12, and setting element 2 passes through mounting hole 21, bolt and fixed plate 11 fixed connection.
One end of the piece to be measured 3 is connected with the fixed guide rail 4, the other end is connected with the positioning piece 2, and the positioning piece 2 is arranged above the fixed guide rail 4, so that an included angle exists between the piece to be measured 3 and the fixed guide rail 4. In one embodiment, the angle between the part 3 to be measured and the vertical is 30 ° -90 °. Preferably, the angle between the part 3 to be measured and the vertical direction is 45 °.
The connection part of the fixed guide rail 4 and the power source 5 is provided with a plurality of sensors 6, and the related data of the power source 5 is monitored and sent to a control center 7. In one embodiment, the sensor 6 comprises a displacement sensor and a force value sensor, and the displacement and force value of the test load output by the power source 5 are sent to the control center 7. Since the output load of the power source 5 acts on the workpiece 3 via the fixed rail 4, the sliding rail is smooth enough to ignore the friction force between the sliding rail and the fixed rail 4, and therefore, the displacement and the force value monitored by the sensor 6 can be directly regarded as the displacement and the bearing force value of the workpiece 3. The sensor 6 can also be directly arranged at the part 3 to be tested, so that errors are effectively reduced, and more accurate test data are obtained.
The two ends of the piece to be tested 3 are respectively fixed between the fixed guide rail 4 and the positioning piece 2, and the angle and the height difference fixed at the two ends can be adjusted to be suitable for the pieces to be tested 3 with different sizes and different structures, so that the universality of equipment use is improved.
In the testing process, the gravity centers of the power source 5, the fixed guide rail 4, the to-be-tested piece 3 and the positioning piece 2 are all on the same vertical plane, so that the data obtained by the testing are more accurate.
A method for testing the anti-seismic performance of an anti-seismic support and hanger component and an inclined strut component comprises the following testing steps:
and S10, fixing the to-be-tested piece 3 on test equipment. As described above, the workpiece 3 is fixedly connected to the fixed rail 4 and the positioning member 2, respectively.
And S20, setting test termination conditions. A test termination condition is set in the control center 7, and when the test termination condition is reached, the power source 5 automatically stops outputting the load.
And S30, applying a first test load at a test action point of the to-be-tested piece 3, wherein the first test load changes in a sine function, and stopping applying the first test load after the first test load is applied for a fixed period number. And applying a second test load at the same test action point of the to-be-tested piece 3 until any test termination condition is met, stopping applying the second test load, wherein the second test load changes along with time in a sine function, and the peak of the latter sine cycle of the second test load is a plurality of times of the peak of the former sine cycle. Here, the second test load and the first test load have the same action point on the workpiece 3.
The application of the first test load is carried out in two stages. The first test load acting direction in the first stage is a positive direction, the power source 5 is gradually loaded until a fixed peak value of the first test load, and then the power source 5 starts to reduce the load, so that the first test load in the positive direction gradually becomes zero. The first phase ends and the second phase begins. The acting direction of the first test load in the second stage is a negative direction, the power source 5 gradually loads to the negative direction until a fixed peak value of the first test load, and then the power source 5 starts to reduce the load, so that the first test load in the negative direction gradually becomes zero. The second phase ends. The point of action of the first test load on the part 3 to be tested is the same in both phases. Wherein the time taken for the first stage and the second stage is the same, and the time taken for loading to a fixed peak value and unloading to zero in each stage is the same. In step S30, the first test load is cycled continuously for one cycle with the two phases being performed once until the first test load is stopped after reaching a predetermined fixed cycle number.
The test equipment applies a first test load in the positive direction to the piece 3 to be tested through sine function change, the first test load gradually loads to a fixed peak value and then falls back to a zero value, then loads to the fixed peak value in the reverse direction and falls back to the zero value, the process is circulated, and the application of the first test load is stopped after the circulation times reach the fixed period number.
The application of the second test load is divided into two stages. The second test load in the first stage acts in the positive direction and is gradually loaded to a plurality of times of the peak value of the previous sine period, and then the power source 5 is unloaded to a zero value. The first phase ends and the second phase begins. The acting direction of the second test load in the second stage is a negative direction, and the load is gradually loaded to a plurality of times of the peak value of the previous sine period and then is relieved to a zero value. The second phase ends. The point of action of the first test load on the part 3 to be tested is the same in both phases. Wherein the time taken for the first stage and the second stage is the same, and the time taken for loading to a fixed peak value and unloading to zero in each stage is the same. In step S30, the second test load is repeated for a period of two phases, and each period peak is several times of the previous period peak until any one test termination condition is satisfied.
In one embodiment, when the set peak is less than 4449N, the fixed peak is 1107N; when the set peak value is equal to or greater than 4449N, the fixed peak value is 4449N. The time taken for loading and unloading at each stage was 2.5 seconds. The fixed number of cycles was 15.
Alternatively, step S30 may be:
the workpiece 3 to be measured is connected with the fixed guide rail 4, the fixed guide rail 4 circularly reciprocates by taking the first target displacement as the maximum displacement, after the circular reciprocation passes through a fixed period number, the fixed guide rail 4 circularly reciprocates by taking the second target displacement as the maximum displacement, and the maximum displacement of the latter cycle period is a plurality of times of the maximum displacement of the former cycle period.
The first target displacement is a fixed value. The initial movement direction of the fixed guide rail 4 is the positive direction, the fixed guide rail 4 moves in the positive direction until the maximum displacement amount in the positive direction is equal to the first target displacement amount, then moves in the reverse direction until the original point is returned, then moves in the positive direction until the maximum displacement amount is the first target displacement amount, and the cycle is repeated, and after the number of the cyclic reciprocation times reaches a fixed period number, changing the maximum displacement of the fixed guide rail 4 in the positive direction into a second target displacement, wherein the maximum displacement of the next cyclic reciprocation period is a plurality of times of the maximum displacement of the previous cyclic reciprocation period, and stopping the cyclic reciprocation until any test termination condition is met.
The test termination conditions include:
(1) The number of test cycles reaches the set number of cycles, and the number of cycles applied by the second test load is equal to the set number of cycles.
(2) The second test load reaches the set peak value, the periodic peak value of the second test load which is continuously increased is equal to or larger than the set peak value, and the second test load is stopped being applied after the period of the peak value is completed.
(3) The deformation amount of the to-be-tested piece 3 is larger than the set deformation amount, and the to-be-tested piece 3 is driven by the fixed guide rail 4 to displace, the displacement value reaches the set displacement value, and the test equipment immediately stops applying the second test load.
(4) The test cycle number reaches the set cycle number and the second test load reaches the set peak value, and the second test load is stopped after the condition (1) and the condition (2) are satisfied.
(5) Destroying the piece to be detected;
(6) The second target displacement reaches the set displacement value, the second target displacement of the latter cycle is several times of the second target displacement of the former cycle, the second target displacement is gradually increased, and the fixed guide rail 4 stops moving after the cycle of the second target displacement is completed when the second target displacement reaches the set displacement value.
In one embodiment, the peak of the subsequent sinusoidal cycle of the second test load is the peak of the previous sinusoidal cycleMultiple times. The time taken for loading and unloading in each stage of the second test load was 2.5 seconds.
In one embodiment, the set number of cycles is no greater than 55. The test load is completed with one sine cycle as one cycle number, and the time-test load chart is embodied as a sine curve of one cycle.
In one embodiment, the peak value is set to be no greater than 50kN. The peak value is set to be the maximum load that the test load reaches in one sinusoidal cycle.
In one embodiment, the set deflection is no greater than 18 millimeters. The deformation is represented here as a displacement of the part 3 to be measured which is driven by the fixed rail 4. According to the included angle between the piece to be measured 3 and the fixed guide rail 4, the setting variable is required to be correspondingly adjusted. The included angle between the corresponding piece to be measured 3 and the vertical direction is 45 degrees when the setting variable is not more than 18 mm. When the included angle between the piece 3 to be measured and the vertical direction is 30 degrees, the setting variable is set to be 12 millimeters; when the included angle between the piece 3 to be measured and the vertical direction is 60 degrees, the setting variable is set to be 22 millimeters; when the angle between the object 3 to be measured and the vertical direction is 90 °, the setting variable is set to 25 mm. If the to-be-tested piece 3 is a component, the included angle between the to-be-tested piece 3 and the vertical direction is the included angle between the axis of the component along the testing load direction and the vertical direction. In general, the limit displacement amount of the fixed rail 4 caused by the shock-resistant hanger diagonal bracing assembly is twice the limit displacement amount of the fixed rail 4 caused by the shock-resistant hanger member, and therefore, the set deformation amount of the shock-resistant hanger diagonal bracing assembly is larger than the set deformation amount of the shock-resistant hanger member.
Whether the first test load or the second test load is applied comprises two stages, the to-be-tested piece 3 is subjected to the process of zero-loading-unloading-zero-loading-unloading, so that the power source 5 and the to-be-tested piece 3 are subjected to a buffering process, the condition that the test result is inaccurate due to sudden increase of the test load is avoided, the test precision and the test accuracy are improved, the service life of the power source 5 is prolonged, and the service life of test equipment is prolonged.
In practical situations, the specific value of the set test termination condition, the relation between the first test load and the second test load, and the set angle of the to-be-tested piece 3 are not limited, and can be formulated according to requirements, wherein the rigidity, the size, and the like of the test equipment, and the rigidity, the size, the anti-seismic performance, and the like of the to-be-tested piece 3 have influence on the three. The numerical values shown in this application are one example thereof and are not intended to limit the invention.
And S40, recording and outputting test data and test charts by the test equipment.
The test data comprises a test load of the to-be-tested piece 3, displacement of the to-be-tested piece 3 and time information related to the displacement and the displacement of the to-be-tested piece 3, and the test chart comprises a time-test load chart of the to-be-tested piece 3, a displacement-test load chart of the to-be-tested piece 3 and a time-displacement chart of the to-be-tested piece 3.
In the test process, the sensor 6 sends the sensed data to the control center 7 in real time, after stopping applying the test load, the control center 7 records the related data to form a chart, and outputs the data, the chart and the information of the to-be-tested piece 3 to the parameter database for storage. The data in the parameter database is associated with the corresponding type of the to-be-tested piece 3, so that a tester can conveniently extract relevant parameters to test the subsequent identical to-be-tested piece 3, the setting steps are reduced, and the testing speed is improved.
The piece 3 that awaits measuring includes antidetonation bracing 31 and connecting piece 32, and antidetonation bracing 31 passes through connecting piece 32 and fixed guide 4, setting element 2 fixed connection, and under the different circumstances, the connecting piece 32 structure that awaits measuring the piece 3 contained is different to lead to the structure and the connected mode of piece 3, fixed guide 4 and setting element to await measuring to be different.
1. Example 1
As shown in fig. 2 and 3, the connecting piece 32 is a building structure connecting piece 321, the building structure connecting piece 321 includes a fixed piece 3211 and a movable piece 3212, the fixed piece 3211 is hinged to the movable piece 3212, a clamping portion is provided at one end of the movable piece 3212, and the movable piece 3212 is fixedly connected with one end of the anti-seismic diagonal bracing 31 through the clamping portion and is reinforced and connected through a bolt. The other end of the anti-seismic diagonal bracing 31 is provided with a connecting hole 311, and the anti-seismic diagonal bracing 31 is fixedly connected with the testing equipment through the connecting hole 311. The aperture of the connection hole 311 is 12 mm.
The locating piece 2 is angle steel 22, and the both sides of angle steel 22 set up triangular supports 221, and the upper surface of angle steel 22 sets up a plurality of locating hole 222. The fixing piece 3211 on the building structure connecting piece 321 is aligned with one of the positioning holes 222, and is fixed by a screw or a bolt, so that the building structure connecting piece 321 is fixedly connected with the angle steel 22 through the positioning hole 222.
The fixed guide rail 4 is provided with a bolt fixing seat 8, and a connecting hole 311 at the other end of the shock-resistant diagonal bracing 31 is inserted between two wings of the bolt fixing seat 8 and is fixed on the bolt fixing seat 8 through a bolt, so that test load from the power source 5 is received.
The included angle between the anti-seismic diagonal bracing 31 and the horizontal direction is 45 degrees, and the length of the anti-seismic diagonal bracing 31 is not more than 450 mm.
In this embodiment, the angle steel 22 is replaced by an L-shaped jig spliced by plates, the rear surface of the L-shaped jig is provided with a plurality of positioning holes 222, and the fixing piece 3211 on the building structure connecting piece 321 is aligned with one of the positioning holes 222, and is fixed by a screw or a bolt, so that the building structure connecting piece 321 is fixedly connected with the L-shaped jig through the positioning hole 222.
2. Example two
As shown in fig. 4 and 5, the part 3 to be measured includes a pipe connection jig 323 and an anti-seismic diagonal brace 31, and the pipe connection jig 323 is fixedly connected with one end of the anti-seismic diagonal brace 31 through a connection member 3231. One end of the connecting member 3231 is fixedly connected with the pipe connecting jig 323 by a bolt, the other end of the connecting member 3231 is provided with a clip portion, and the connecting member 3231 is fixedly connected with one end of the shock-resistant diagonal brace 31 by the clip portion and is fixedly connected by a bolt. The other end of the anti-seismic diagonal bracing 31 is provided with a connecting hole 311, and the anti-seismic diagonal bracing 31 is fixedly connected with the testing equipment through the connecting hole 311. The aperture of the connection hole 311 is 12 mm.
The positioning piece 2 comprises a positioning base 231 and a connecting pipe fitting 232, the connecting pipe fitting 232 is fixed between the side walls of the two ends of the positioning base 231, a pipeline connecting clamp 323 is sleeved outside the connecting pipe fitting 232 and fixedly connected with the connecting pipe fitting 232, and the two ends of the pipeline connecting clamp 323 are tightened through bolts.
The fixed guide rail 4 is provided with a bolt fixing seat 8, and a connecting hole 311 at the other end of the shock-resistant diagonal bracing 31 is inserted between two wings of the bolt fixing seat 8 and is fixed on the bolt fixing seat 8 through a bolt, so that test load from the power source 5 is received.
The included angle between the anti-seismic diagonal bracing 31 and the horizontal direction is 45 degrees, and the length of the anti-seismic diagonal bracing 31 is not more than 450 mm.
3. Example III
As shown in fig. 6 and 7, the part 3 to be measured includes a steel structure clamp 322, an anti-seismic diagonal brace 31 and a fixing part 3211, wherein the steel structure clamp 322 is fixedly connected with one end of the fixing part 3211 through a bolt, and the other end of the fixing part 3211 is fixedly connected with one end of the anti-seismic diagonal brace 31 through a bolt, so that the fixing part 3211 is hinged with the anti-seismic diagonal brace 31. The other end of the anti-seismic diagonal bracing 31 is provided with a connecting hole 311, and the anti-seismic diagonal bracing 31 is fixedly connected with the testing equipment through the connecting hole 311. The aperture of the connection hole 311 is 12 mm.
The positioning piece 2 is a steel plate 24 with wing plates at the upper end and the lower end, and the steel structure clamp 322 clamps one of the wing plates, so that the positioning piece 2 is fixedly connected with the connecting piece 32.
The fixed guide rail 4 is provided with a bolt fixing seat 8, and a connecting hole 311 at the other end of the shock-resistant diagonal bracing 31 is inserted between two wings of the bolt fixing seat 8 and is fixed on the bolt fixing seat 8 through a bolt, so that test load from the power source 5 is received.
The included angle between the anti-seismic diagonal bracing 31 and the horizontal direction is 45 degrees, and the length of the anti-seismic diagonal bracing 31 is not more than 450 mm.
In this embodiment, the steel plate 24 is replaced with a steel member, which may be H-steel, C-steel or angle steel having a wing structure, and the steel structure clamp 322 clamps one of the wings so that the positioning member 2 is fixedly connected to the connecting member 32.
4. Example IV
As shown in fig. 8 and 9, the to-be-measured member 3 includes an anti-seismic diagonal brace 31 and two building structure connecting members 321 disposed at two ends of the anti-seismic diagonal brace 31, and the building structure connecting members 321 are fixedly connected with the anti-seismic diagonal brace 31. The building structure connecting piece 321 comprises a fixing piece 3211 and a movable piece 3212, the fixing piece 3211 is hinged with the movable piece 3212, a clamping portion is arranged at one end of the movable piece 3212, and the movable piece 3212 is fixedly connected with one end of the anti-seismic diagonal bracing 31 through the clamping portion and is fixedly connected through bolts. The other end of the shock-resistant diagonal strut 31 is also connected to the building structure connector 321 as described above. The other end of the shock-resistant diagonal brace 31 is provided with a connecting hole 311. The aperture of the connection hole 311 is 12 mm.
The locating piece 2 is angle steel 22, and the both sides of angle steel 22 set up triangular supports 221, and the upper surface of angle steel 22 sets up a plurality of locating hole 222. The fixing piece 3211 on the building structure connecting piece 321 is aligned with one of the positioning holes 222, and is fixed by a screw or a bolt, so that the building structure connecting piece 321 is fixedly connected with the angle steel 22 through the positioning hole 222.
The building structure connecting piece 321 at the other end of the anti-seismic diagonal bracing 31 is provided with a round hole on the fixing piece 3211, the round hole is aligned with the fixing hole 41 on the fixed guide rail 4, and the anti-seismic diagonal bracing 31 is fixedly connected with the fixed guide rail 4 through bolt fixing.
The included angle between the anti-seismic diagonal bracing 31 and the horizontal direction is 45 degrees, and the length of the anti-seismic diagonal bracing 31 is not more than 450 mm.
In this embodiment, the angle steel 22 is replaced by an L-shaped jig spliced by plates, the rear surface of the L-shaped jig is provided with a plurality of positioning holes 222, and the fixing piece 3211 on the building structure connecting piece 321 is aligned with one of the positioning holes 222, and is fixed by a screw or a bolt, so that the building structure connecting piece 321 is fixedly connected with the L-shaped jig through the positioning hole 222.
5. Example five
As shown in fig. 10 and 11, the part 3 to be tested includes a building structure connecting member 321, a steel structure clamp 322 and an anti-seismic diagonal brace 31, and the steel structure clamp 322 is fixedly connected with the anti-seismic diagonal brace 31 through the building structure connecting member 321. The building structure connecting piece 321 comprises a fixing piece 3211 and a movable piece 3212, the fixing piece 3211 is hinged with the movable piece 3212, a clamping portion is arranged at one end of the movable piece 3212, and the movable piece 3212 is fixedly connected with one end of the anti-seismic diagonal bracing 31 through the clamping portion and is fixedly connected through bolts. The steel structure clamp 322 is connected with the fixing piece 3211 of the building structure connecting piece 321 through bolts, so as to realize fixed connection with the building structure connecting piece 321. The other end of the anti-seismic diagonal bracing 31 is provided with a connecting hole 311, and the anti-seismic diagonal bracing 31 is fixedly connected with the testing equipment through the connecting hole 311. The aperture of the connection hole 311 is 12 mm.
The positioning piece 2 is a steel plate 24 with wing plates at the upper end and the lower end, and the steel structure clamp 322 clamps one of the wing plates, so that the positioning piece 2 is fixedly connected with the connecting piece 32.
The fixed guide rail 4 is provided with a bolt fixing seat 8, and a connecting hole 311 at the other end of the shock-resistant diagonal bracing 31 is inserted between two wings of the bolt fixing seat 8 and is fixed on the bolt fixing seat 8 through a bolt, so that test load from the power source 5 is received.
The included angle between the anti-seismic diagonal bracing 31 and the horizontal direction is 45 degrees, and the length of the anti-seismic diagonal bracing 31 is not more than 450 mm.
In this embodiment, the steel plate 24 is replaced with a steel member, which may be H-steel, C-steel or angle steel having a wing structure, and the steel structure clamp 322 clamps one of the wings so that the positioning member 2 is fixedly connected to the connecting member 32.
In this application, setting element 2, bolt fixing base 8, fixed plate 11 etc. on frame 1 are the tool of fixing the piece 3 that awaits measuring on frame 1 and fixed rail 4, can change according to different demands, different circumstances, different pieces 3 that await measuring, only need reach the test load that will await measuring 3 fixed and receive power supply 5 through fixed rail 4 can. The fixed rail 4 is provided for fixing the test load of the test piece 3 and the power source 5, and for obtaining the deformation amount of the test piece 3 by self-displacement, and in this case, the bottom of the fixed rail 4 is not necessarily a combination of a slider and a slide rail, and may be any sliding mechanism.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. An anti-seismic performance test device for an anti-seismic support and hanger component and an inclined strut component is characterized by comprising
The power source is connected with the control center and outputs a test load under the control of the control center;
the device comprises a power source, a fixed guide rail, a power source, a test load, a plurality of fixing holes and a fixing device, wherein the fixed guide rail is connected with the power source, one end of a piece to be tested is fixed on the fixed guide rail, a test load output by the power source acts on the same action point of the piece to be tested through the fixed guide rail, the fixed guide rail is provided with the plurality of fixing holes, and one end of the piece to be tested is fixedly connected with the fixed guide rail through the fixing holes;
the other end of the to-be-measured piece is fixedly connected with the positioning piece, and the angle and the height difference fixed at the two ends can be adjusted to be suitable for to-be-measured pieces with different sizes and different structures;
the fixed guide rail is connected with the power source through a plurality of sensors;
the to-be-tested piece comprises a connecting piece and an anti-seismic diagonal brace, and the anti-seismic diagonal brace is fixedly connected with the fixed guide rail and the positioning piece respectively through the connecting piece;
the bottom of the fixed guide rail is connected with the sliding mechanism, and the fixed guide rail slides along the sliding mechanism under the action of the test load;
applying alternating stress impact to the to-be-tested piece through the fixed guide rail so as to simulate the stress characteristics and deformation characteristics of the to-be-tested piece in the cyclic reciprocating motion during an earthquake, and obtaining the effect of the to-be-tested piece during the vibration by using a quasi-static method, wherein the testing steps comprise:
s10, fixing the piece to be tested on test equipment;
s20, setting test termination conditions;
s30, applying a first test load at a test action point of the piece to be tested, wherein the first test load changes in a sine function along with time, and stopping applying the first test load after the first test load is applied for a fixed period number;
applying a second test load to the same test action point of the to-be-tested piece until any test termination condition is met, stopping applying the second test load, wherein the second test load changes in a sine function along with time, and the peak value of the later sine period of the second test load is a plurality of times of the peak value of the former sine period;
or alternatively, the first and second heat exchangers may be,
the to-be-tested piece is connected with the fixed guide rail, the fixed guide rail circularly reciprocates by taking the first target displacement as the maximum displacement, and after the circular reciprocation passes through a fixed period number, the fixed guide rail circularly reciprocates by taking the second target displacement as the maximum displacement, and the maximum displacement of the latter cycle period is a plurality of times of the maximum displacement of the former cycle period;
and S40, the test equipment records and outputs test data and test charts.
2. The anti-seismic performance testing device for the anti-seismic support and hanger component and the diagonal brace component according to claim 1, wherein a bolt fixing seat is arranged on the fixed guide rail, the bolt fixing seat is connected with the fixed hole through a bolt, and one end of the piece to be tested is connected with the fixed guide rail through the bolt fixing seat.
3. The anti-seismic performance testing device for the anti-seismic support and hanger component and the diagonal brace component according to claim 1, wherein the connecting piece is a building structure connecting piece, the building structure connecting piece comprises a movable piece and a fixed piece, the movable piece is hinged with the fixed piece, and the movable piece is fixedly connected with the anti-seismic diagonal brace;
the two ends of the anti-seismic diagonal bracing are respectively connected with the positioning piece and the fixed guide rail through the building structure connecting piece, or the anti-seismic diagonal bracing is fixedly connected with the fixed guide rail, and the building structure connecting piece is fixedly connected with the positioning piece;
the locating piece is angle steel or L-shaped jig, a plurality of locating holes are formed in the upper surface of the angle steel or L-shaped jig, and the building structure connecting piece is fixedly connected with the angle steel or L-shaped jig through the locating holes.
4. The anti-seismic performance testing device for the anti-seismic support and hanger component and the diagonal brace assembly according to claim 1, wherein the connecting piece is a pipeline connecting clamp, the pipeline connecting clamp is fixedly connected with the anti-seismic diagonal brace through a connecting member, one end of the connecting member is fixedly connected with the pipeline connecting clamp through a bolt, the other end of the connecting member is provided with a clamping part, and the connecting member is fixedly connected with the anti-seismic diagonal brace through the clamping part;
the anti-seismic diagonal bracing is fixedly connected with the fixed guide rail;
the locating piece comprises a locating base and a connecting pipe fitting, wherein the connecting pipe fitting is fixed between the side walls of two ends of the locating base, and the pipeline connecting clamp is sleeved outside the connecting pipe fitting and fixedly connected with the connecting pipe fitting.
5. The anti-seismic performance testing device for the anti-seismic support and hanger component and the diagonal brace assembly according to claim 1, wherein the connecting piece comprises a building structure connecting piece and a steel structure clamp, the building structure connecting piece comprises a fixed piece and a movable piece, the fixed piece is hinged with the movable piece, the movable piece is fixedly connected with the anti-seismic diagonal brace, the fixed piece is connected with the steel structure clamp, and the steel structure clamp is fixedly connected with the positioning piece;
the locating piece is a steel plate or a section steel machined piece with wing plates arranged at the upper end and the lower end, and the steel structure clamp clamps one of the wing plates, so that the locating piece is fixedly connected with the connecting piece.
6. An anti-seismic hanger component and diagonal brace assembly anti-seismic performance testing apparatus as defined in claim 1 wherein said test termination conditions comprise:
(1) The test cycle number reaches the set cycle number;
(2) The second test load value reaches a set peak value;
(3) The deformation amount of the piece to be detected is larger than the set deformation amount;
(4) The test cycle number reaches the set cycle number and the second test load value reaches the set peak value;
(5) The piece to be detected is damaged;
(6) The second target displacement reaches a set displacement value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641300.XA CN112747879B (en) | 2020-12-31 | 2020-12-31 | Anti-seismic support and hanger component and inclined strut component anti-seismic performance testing equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641300.XA CN112747879B (en) | 2020-12-31 | 2020-12-31 | Anti-seismic support and hanger component and inclined strut component anti-seismic performance testing equipment and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112747879A CN112747879A (en) | 2021-05-04 |
| CN112747879B true CN112747879B (en) | 2024-02-20 |
Family
ID=75649464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011641300.XA Active CN112747879B (en) | 2020-12-31 | 2020-12-31 | Anti-seismic support and hanger component and inclined strut component anti-seismic performance testing equipment and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112747879B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182474B (en) * | 2022-06-16 | 2024-04-02 | 桂林理工大学 | Energy-consumption diagonal bracing system based on bistable rod piece system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122057A (en) * | 2014-07-31 | 2014-10-29 | 深圳市民乐管业有限公司 | Detection method and equipment for seismic performance of anti-seismic support hanger |
| CN204649550U (en) * | 2015-06-09 | 2015-09-16 | 成都市伺服液压设备有限公司 | For the horizontal loading apparatus of building materials anti-seismic performance test |
| KR20160109675A (en) * | 2015-03-12 | 2016-09-21 | 한국가스공사 | Testing apparatus for evaluating seismic performance |
| CN110274837A (en) * | 2019-07-18 | 2019-09-24 | 湖北万测试验设备有限公司 | A kind of antidetonation suspension and support testing machine |
| CN110320019A (en) * | 2019-07-24 | 2019-10-11 | 北京建筑材料检验研究院有限公司 | Fatigue testing equipment for antidetonation suspension and support |
| CN110346102A (en) * | 2019-08-20 | 2019-10-18 | 中国地震局工程力学研究所 | A kind of antidetonation suspension and support loading device |
| CN210322235U (en) * | 2019-09-06 | 2020-04-14 | 福建亢达科技有限公司 | A gallows detection device combats earthquake |
| CN210513646U (en) * | 2019-07-30 | 2020-05-12 | 云南科仑工程质量检测有限公司 | Clamp for performance detection equipment of anti-seismic support and hanger |
| CN211348507U (en) * | 2019-10-31 | 2020-08-25 | 江苏亨通电力电缆有限公司 | Slope impact test device and breakdown voltage measurement system |
| CN112082865A (en) * | 2020-09-14 | 2020-12-15 | 哈尔滨工程大学 | Novel device for buckling test of inclined strut |
| CN214471632U (en) * | 2020-12-31 | 2021-10-22 | 深圳优力可科技股份有限公司 | Anti-seismic support and hanger component and anti-seismic performance testing equipment for diagonal bracing assembly |
-
2020
- 2020-12-31 CN CN202011641300.XA patent/CN112747879B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122057A (en) * | 2014-07-31 | 2014-10-29 | 深圳市民乐管业有限公司 | Detection method and equipment for seismic performance of anti-seismic support hanger |
| KR20160109675A (en) * | 2015-03-12 | 2016-09-21 | 한국가스공사 | Testing apparatus for evaluating seismic performance |
| CN204649550U (en) * | 2015-06-09 | 2015-09-16 | 成都市伺服液压设备有限公司 | For the horizontal loading apparatus of building materials anti-seismic performance test |
| CN110274837A (en) * | 2019-07-18 | 2019-09-24 | 湖北万测试验设备有限公司 | A kind of antidetonation suspension and support testing machine |
| CN110320019A (en) * | 2019-07-24 | 2019-10-11 | 北京建筑材料检验研究院有限公司 | Fatigue testing equipment for antidetonation suspension and support |
| CN210513646U (en) * | 2019-07-30 | 2020-05-12 | 云南科仑工程质量检测有限公司 | Clamp for performance detection equipment of anti-seismic support and hanger |
| CN110346102A (en) * | 2019-08-20 | 2019-10-18 | 中国地震局工程力学研究所 | A kind of antidetonation suspension and support loading device |
| CN210322235U (en) * | 2019-09-06 | 2020-04-14 | 福建亢达科技有限公司 | A gallows detection device combats earthquake |
| CN211348507U (en) * | 2019-10-31 | 2020-08-25 | 江苏亨通电力电缆有限公司 | Slope impact test device and breakdown voltage measurement system |
| CN112082865A (en) * | 2020-09-14 | 2020-12-15 | 哈尔滨工程大学 | Novel device for buckling test of inclined strut |
| CN214471632U (en) * | 2020-12-31 | 2021-10-22 | 深圳优力可科技股份有限公司 | Anti-seismic support and hanger component and anti-seismic performance testing equipment for diagonal bracing assembly |
Non-Patent Citations (1)
| Title |
|---|
| 建筑抗震支吊架斜撑连接构件的拉伸破坏试验研究;别亦白 等;《港共技术》;第55卷(第5期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112747879A (en) | 2021-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106680079A (en) | Piezoelectric stack direct driving type macro-micro combined biaxial stretching-fatigue testing system | |
| CN112747879B (en) | Anti-seismic support and hanger component and inclined strut component anti-seismic performance testing equipment and method | |
| CN109342001B (en) | Vibration test device for aircraft panel connecting piece | |
| Swanson | Handbook of fatigue testing | |
| CN111272568B (en) | Device and method for measuring stretching-shearing and stretching-twisting coupling effects | |
| Shadmehri | Buckling of laminated composite conical shells; theory and experiment | |
| CN214471632U (en) | Anti-seismic support and hanger component and anti-seismic performance testing equipment for diagonal bracing assembly | |
| CN114659897A (en) | Solid propellant confining pressure in-situ tensile test device and test method | |
| CN112748000B (en) | Multi-axis testing machine and testing method for testing performance of carbon fiber composite material | |
| CN111272557A (en) | Metal material compression creep testing device and measuring method | |
| CN111272546B (en) | Torsion-tension coupling effect measuring device and method | |
| CN109724879B (en) | Flexible fiber reinforced film biaxial stress fatigue loading test device | |
| Iancu et al. | Three-dimensional investigation of thick single-lap bolted joints | |
| Gardner | Experimental techniques for shear testing of thin sheet metals and compression testing at intermediate strain rates | |
| CN112255102A (en) | Multifunctional material mechanics underwater test equipment under ultrahigh pressure | |
| Begishev et al. | Features and modernization methods of thrust measurement devices for liquid rocket engine test stands | |
| CN211904911U (en) | Metal material compression creep testing arrangement | |
| CN216349966U (en) | Multi-channel coordination loading analysis test equipment for fabricated building | |
| Birkemoe | Stability: directions in experimental research | |
| RU2799978C1 (en) | Stand for testing for biaxial tension-compression | |
| CN113970435B (en) | Axial stress pre-tightening bolt connection strength experiment table and experiment method thereof | |
| CN216081413U (en) | Measuring device | |
| CN107389286B (en) | Fast pile component bending stiffness test device and method | |
| Ghuku et al. | Design development and performance analysis of leaf spring testing set up in elastic domain | |
| Deshpande | Quasi-static and dynamic mechanical response of T800/F3900 composite in tension and shear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |