CN210719606U - Free rise and fall week repetitive load test device - Google Patents
Free rise and fall week repetitive load test device Download PDFInfo
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- CN210719606U CN210719606U CN201921970325.7U CN201921970325U CN210719606U CN 210719606 U CN210719606 U CN 210719606U CN 201921970325 U CN201921970325 U CN 201921970325U CN 210719606 U CN210719606 U CN 210719606U
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Abstract
The utility model provides a freely rise and reduce week repetitive load test device, including the counterforce wall, transverse actuator, actuator sliding support, actuator fixing support, hang solid sliding support, the track screw rod, a controller, the bearing body, the counterforce wall, the track screw rod, the bottom mounting of bearing body is the basis, transverse actuator perpendicular to counterforce wall is horizontal transverse arrangement, actuator fixing support passes through the side of bolt fastening in the counterforce wall, be provided with transmission gear and controller on the top of bearing body, the controller is connected with last transmission gear and drives down the normal position rotation that transmission gear drove track screw rod, actuator sliding support, hang solid sliding support and can follow on the track screw rod axis direction, lower synchronous motion. The utility model discloses greatly increased the commonality of low week repeated load test system, need not extra dismantlement, hoisting support, practiced thrift manpower and materials greatly, eliminated a lot of potential safety hazards.
Description
Technical Field
The utility model relates to a test system of building structure component, concretely relates to freely rise and reduce week repetitive load test device belongs to civil engineering test field.
Background
China is a country with serious earthquake disasters, and the loss caused by the earthquake is often very disastrous, so at present, earthquake resistance is the main research field of many scholars, and at present, the stress characteristics and the deformation characteristics of a structure in the reciprocating load during the earthquake are mainly simulated through low-cycle repeated loading tests in the world. The low-cycle repeated loading test is a test in which a transverse load is applied to a test specimen to perform repeated motion in a similar working state, and finally the test specimen is damaged.
The low-cycle repeated loading test needs to provide huge lateral counter-force support when loading, at present, most low-cycle repeated loading tests all adopt test devices such as shear walls, portal frames and the like to carry out loading, the obvious defects of the loading systems are that the adaptability of the device is poor, the adjustability is poor, the height of an actuator needs to be adjusted to test pieces with different changing sizes and changing heights so as to adapt to the loading requirements of specific tests, and because the actuator has the characteristics of large size and heavy weight, the adjustment of the actuator is realized by manually assisting large-scale mechanical hoisting. In the process of adjusting the hoisting, a great deal of time, manpower and material resources are consumed, and the method is not consistent with the current mechanization trend. Meanwhile, when the actuator is adjusted by manually assisting a large machine, the safety problem is a hidden danger.
For example, chinese patent CN108426791A discloses a low-cycle repetitive load test loading device of a wood-concrete composite structure, which fixes a test piece by fixing devices such as bolts, and needs to manually disassemble the test piece and fix the position of a new test piece after each test is finished, thereby consuming a lot of manpower; for another example, chinese patent CN104792561A discloses a low-cycle trial and error apparatus, which needs four beams to fix the actuators, and cannot freely move the positions of the actuators, and the apparatus is complex and consumes a lot of material resources.
To sum up, the loading device for the low-cycle repetitive load test of the traditional structure has the problems that the device is hard to be fixed, the actuator is difficult to move, and the device is difficult to adapt to the test requirements of test pieces with different sizes and different specifications.
Disclosure of Invention
The utility model discloses to the actuator rigidity of traditional low week repetitive load test loading system, adjust the difficult technological problem, provide one kind and freely rise and reduce week repetitive load test device, reciprocating of actuator sliding support is being controlled to the controller to make horizontal actuator adaptability remove about as required, thereby realized the upper and lower free regulation of low week repetitive load test system, adapt to the test piece loading of various different specifications, saved the cost effectively, improved work efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a free-lift circumferential-reduction repetitive load test device comprises a counterforce wall, a transverse actuator, an actuator sliding support, an actuator fixed support, a suspended sliding support, a track screw rod, a controller and a bearing body, and is characterized in that the counterforce wall, the track screw rod and the bottom end of the bearing body are fixed on a foundation, the transverse actuator is perpendicular to the counterforce wall and horizontally and transversely arranged, the tail end of the transverse actuator is connected with the actuator sliding support and the actuator fixed support, the front end of the transverse actuator is obliquely suspended on the suspended sliding support through an oblique pull rod, the actuator sliding support and the suspended sliding support are respectively and fixedly connected with the track screw rod through a connector with internal threads, the top end of the track screw rod is provided with a lower transmission gear, the actuator fixed support is fixed on the side surface of the counterforce wall through bolts, the top end of the bearing body is provided with an upper transmission gear and a controller, the upper transmission, the controller is connected with the upper transmission gear and drives the lower transmission gear to drive the track screw to rotate in situ, and the actuator sliding support and the suspension sliding support can synchronously move up and down along the axis direction of the track screw.
The suspension sliding support is positioned right above the sliding support of the actuator, the distance between the suspension sliding support and the sliding support of the actuator is determined by the oblique angle of the oblique pull rod, and the distance between the suspension sliding support and the sliding support of the actuator is kept unchanged when the transverse actuator moves up and down.
The track screw rod can rotate clockwise or anticlockwise in the original position, so that the connector can move up and down.
The actuator fixing support and the reaction wall are in a separation state and a connection fixing state according to the opening and closing of the fixing anchor bolt, when the transverse actuator moves up and down, the transverse actuator is in the separation state, and when the transverse actuator moves in place, the transverse actuator is in the connection fixing state.
The controller is provided with a rotating shaft driven electrically or manually, and an upper transmission gear is connected and arranged at the end part of the rotating shaft.
The bearing body is one of a part of the reaction wall or an additional upright post or a frame which is vertically arranged, the controller is arranged and fixed at the top of the bearing body, and the bearing body plays a role in bearing and fixing the controller.
Actuator sliding support, hang solid sliding support and constitute by connector, connecting steel plate and connecting screw interconnect, connecting steel plate and connecting screw are for connecting the effect of horizontal actuator, the load transmission of connecting steel plate and track screw is realized to the connector to realize reciprocating along track screw.
When the free-rise and cycle-reduction repeated load test device is implemented, the actuator sliding support, the actuator fixed support, the suspension sliding support, the track screw, the controller, the transmission gear and the like are all prefabricated metal components, the installation is flexible, and the maneuverability of the whole test loading frame is improved.
When the free lifting and lowering cycle repeated load test device is implemented, the controller controls the transmission gear to rotate so as to drive the track screw to rotate, and the interaction between the threads of the track screw and the threads inside the connector realizes that the sliding support of the actuator moves up and down, so that the transverse actuator can move freely in an up-and-down adaptive manner as required.
The utility model has the advantages as follows:
(1) the up-and-down adaptive movement of the sliding support of the actuator is controlled by the controller, so that the up-and-down movement of the transverse actuator is realized, the free lifting and reduction of the cyclic repetitive load test device is realized, and the universality of the low cyclic repetitive load test system is greatly improved.
(2) The transverse actuator can move up and down rapidly without additional disassembly and hoisting of the bracket, so that manpower and material resources are greatly saved, and many potential safety hazards are eliminated.
(3) The track screw, the connector and the connecting screw are placed in the groove rail in the reaction wall, and the controller is placed at the top of the bearing body, so that the appearance and the use space of the traditional test system are not affected.
Description of the drawings:
FIG. 1 is a schematic overall view of a free rise and fall cyclic repetitive load testing apparatus;
FIG. 2 is a schematic view of a connector and connecting screw in a free rise and fall cycle repetitive load testing apparatus;
FIG. 3 is a schematic diagram of an actuator shoe, a suspension shoe, a controller, a drive gear, diagonal tie rods, orbital screws and a lateral actuator in a free rise and fall cyclic repetitive load testing apparatus;
FIG. 4 is a schematic diagram of the drive gears and orbital screw in a free rise and fall cycle repetitive load test apparatus.
In all the drawings, 1 is a counterforce wall; 2 is a transverse actuator; 20 is a sliding support of the actuator; 3 is a track screw; 30 is an actuator fixing support; 4 is a controller; 40 is a suspended sliding support; 41 is a rotating shaft; 5 is a bearing body; 50 is a connector; 60 is a connecting steel plate; 70 is a connecting screw rod; 300 is a fixing anchor bolt; 301 is a lower transmission gear; 302 is an upper drive gear; 401 is diagonal tie bar.
The specific implementation mode is as follows:
the invention is further described with reference to the accompanying drawings and the detailed description.
A free-lift cycle-reduction repeated load test device comprises a counterforce wall 1, a transverse actuator 2, an actuator sliding support 20, an actuator fixed support 30, a suspension sliding support 40, a track screw rod 3, a controller 4 and a bearing body 5, and is characterized in that the counterforce wall 1, the track screw rod 3 and the bottom end of the bearing body 5 are fixed on a foundation, the transverse actuator 2 is horizontally and transversely arranged perpendicular to the counterforce wall 1, the tail end part of the transverse actuator 2 is connected with the actuator sliding support 20 and the actuator fixed support 30, the front part of the transverse actuator is obliquely suspended on the suspension sliding support 40 through an oblique pull rod 401, the actuator sliding support 20 and the suspension sliding support 40 are respectively and fixedly connected with the track screw rod 3 through a connector 50 with internal threads, a lower transmission gear 301 is arranged at the top end of the track screw rod 3, the actuator fixed support 30 is fixed on the side surface of the actuator fixed, an upper transmission gear 302 and a controller 4 are arranged at the top end of the bearing body 5, the upper transmission gear 302 and the lower transmission gear 301 are coupled with each other, the controller 4 is connected with the upper transmission gear 302 and drives the lower transmission gear 301 to drive the track screw 3 to rotate in situ, and the actuator sliding support 20 and the suspension sliding support 40 can synchronously move up and down along the axis direction of the track screw 3.
The suspension sliding support 40 is located right above the actuator sliding support 20, and the distance between the suspension sliding support and the actuator sliding support is determined by the inclined angle of the inclined pull rod 401.
The orbital screw 3 can be rotated clockwise or counterclockwise in the home position to move the connector 50 up and down.
The actuator fixing support 30 and the reaction wall 1 have two states of separation and connection fixation according to the opening and closing of the fixing anchor bolt 300, when the transverse actuator 2 moves up and down, the two states are separated, and when the transverse actuator 2 moves in place, the two states are connected and fixed.
The controller 4 is provided with a rotation shaft 41 driven by an electric motor or a manual motor, and an upper transmission gear 302 is connected to an end of the rotation shaft 41.
The bearing body 5 is a part of the reaction wall 1 or one of the additional vertical columns or frames, and the controller 4 is arranged at the top of the bearing body 5.
The actuator sliding support 20 and the suspension sliding support 40 are formed by connecting a connector 50, a connecting steel plate 60 and a connecting screw rod 70, and are all prefabricated metal components.
Claims (7)
1. The utility model provides a freely rise and fall week repetitive load test device, including counterforce wall (1), horizontal actuator (2), actuator sliding support (20), actuator fixed bolster (30), hang solid sliding support (40), track screw rod (3), controller (4), bearing body (5), a serial communication port, counterforce wall (1), track screw rod (3), the bottom mounting of bearing body (5) is the basis, horizontal actuator (2) are horizontal transverse arrangement perpendicular to counterforce wall (1), the tail end portion of horizontal actuator (2) is connected in actuator sliding support (20), actuator fixed bolster (30), the front portion is hung in hanging solid sliding support (40) through slant pull rod (401) slant, actuator sliding support (20), it is fixed connection in track screw rod (3) through connector (50) that are equipped with the internal thread respectively to hang solid sliding support (40), the top of track screw rod (3) sets up down drive gear (301), actuator fixing support (30) are fixed in the side of reaction wall (1) through the bolt, top at bearing body (5) is provided with up drive gear (302) and controller (4), the gear intercoupling of going up drive gear (302) and lower drive gear (301), controller (4) are connected with last drive gear (302) and drive down drive gear (301) and drive the normal position rotation that track screw rod (3) down, actuator sliding support (20), hang solid sliding support (40) can be along track screw rod (3) axis direction on, synchronous motion down.
2. A free rise and fall cyclic repetitive load testing device as claimed in claim 1, wherein said suspension shoe (40) is located directly above the actuator shoe (20) and the distance between them is determined by the angle of inclination of the inclined tie rod (401).
3. A free rise and fall cyclic repetitive load testing device as claimed in claim 1, wherein said orbital screw (3) can be rotated clockwise or counterclockwise in situ to effect up and down movement of the connector (50).
4. The free rise and fall cyclic repetitive load test device as claimed in claim 1, wherein the actuator fixing support (30) and the reaction wall (1) have two states of separation and connection fixation according to the opening and closing of the fixing anchor bolt (300), when the transverse actuator (2) moves up and down, the two states of separation are formed, and when the transverse actuator (2) moves in place, the two states of connection fixation are formed.
5. The free-rise and fall cyclic repetitive load test device as claimed in claim 1, wherein the controller (4) is provided with an electrically or manually driven rotating shaft (41), and an upper transmission gear (302) is connected and arranged at the end of the rotating shaft (41).
6. A free rise and fall cyclic repetitive load testing device as claimed in claim 1, wherein the load bearing body (5) is a part of the reaction wall (1) or is additionally one of a vertically arranged upright or a frame, and the controller (4) is arranged and fixed on the top of the load bearing body (5).
7. The free rise and fall cyclic repetitive load test device of claim 1, wherein the actuator sliding support (20) and the suspension sliding support (40) are formed by connecting a connector (50), a connecting steel plate (60) and a connecting screw rod (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921970325.7U CN210719606U (en) | 2019-11-14 | 2019-11-14 | Free rise and fall week repetitive load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921970325.7U CN210719606U (en) | 2019-11-14 | 2019-11-14 | Free rise and fall week repetitive load test device |
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| Publication Number | Publication Date |
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| CN210719606U true CN210719606U (en) | 2020-06-09 |
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| CN201921970325.7U Active CN210719606U (en) | 2019-11-14 | 2019-11-14 | Free rise and fall week repetitive load test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779670B (en) * | 2019-11-14 | 2024-05-03 | 南京林业大学 | Liftable counter-force wall low cycle repeated load test system |
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2019
- 2019-11-14 CN CN201921970325.7U patent/CN210719606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779670B (en) * | 2019-11-14 | 2024-05-03 | 南京林业大学 | Liftable counter-force wall low cycle repeated load test system |
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Assignee: Zhenjiang Heng An Civil Technology Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000368 Denomination of utility model: A free lifting low cycle repeated load test device Granted publication date: 20200609 License type: Common License Record date: 20201212 Assignee: BEIJING JIUTONGQU TESTING TECHNOLOGY Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000367 Denomination of utility model: A free lifting low cycle repeated load test device Granted publication date: 20200609 License type: Common License Record date: 20201212 Assignee: Hefei Shuang Dao run Highway Engineering Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000366 Denomination of utility model: A free lifting low cycle repeated load test device Granted publication date: 20200609 License type: Common License Record date: 20201212 |