CN113567273A - Double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and method - Google Patents
Double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and method Download PDFInfo
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- CN113567273A CN113567273A CN202110825766.3A CN202110825766A CN113567273A CN 113567273 A CN113567273 A CN 113567273A CN 202110825766 A CN202110825766 A CN 202110825766A CN 113567273 A CN113567273 A CN 113567273A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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Abstract
The invention relates to a double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and a method, the device comprises a counter-force supporting unit, a loading frame unit, an actuator unit and a control unit, wherein the counter-force supporting unit comprises a sunken terrace and a pair of counter-force walls which are arranged on the sunken terrace and are respectively positioned on two sides of the sunken terrace, the actuator unit comprises a pair of horizontal actuator groups, a pair of vertical actuator groups and a pair of guide rail actuator groups, the horizontal actuator groups are positioned between the loading frame unit and the counter-force walls on the corresponding side, the vertical actuator groups are positioned on the loading frame unit, and the guide rail actuator groups are positioned between the loading frame unit and the sunken terrace. Compared with the prior art, the invention can realize full-scale or large-scale model test of the structural member, strictly ensure the accurate loading of the load action such as axial pressure, bending moment, shearing force and the like, and is convenient for researching the response characteristic of the large structural member under the combined action of various loads.
Description
Technical Field
The invention belongs to the technical field of civil engineering structure tests, and relates to a double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and method.
Background
In high-rise and super high-rise building structures, large structural members (such as shear walls, giant columns and the like) are key members for resisting load, so that the research on the mechanical properties of the large structural members under different load combinations is very important for structural design, and the large structural members are the foundation for ensuring the structural safety.
The static reciprocating load test can obtain the hysteresis performance of the component, and further obtain the restoring force characteristic of the component. However, limited by the loading capacity of the existing test device, a scale model test is often performed, and strict axial pressure, bending moment and shear force loading cannot be realized, so that great difficulty exists in the test.
Disclosure of Invention
The invention aims to provide a double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and method, which are used for solving the technical problem that the existing test device cannot complete related tests according to expected targets. The static force test device is used for carrying out static force reciprocating tests on large structural members under different load combinations, obtaining hysteresis performance and researching the restoring force characteristics of the large structural members.
The purpose of the invention can be realized by the following technical scheme:
two side loading large-scale compression shear bending compound multi-functional loading test device, the device include counter-force supporting unit, set up on counter-force supporting unit and with the loading frame unit of test piece looks adaptation, actuator unit and the control unit who is connected with the actuator unit electricity, counter-force supporting unit include sunken terrace and a pair of setting on sunken terrace and be located the counter-force wall of sunken terrace both sides respectively, actuator unit include that a pair of level actuates the group, a pair of vertical actuator group and a pair of guide rail actuates the group, the level actuate between the counter-force wall that the group is located loading frame unit and corresponding one side, vertical actuator group be located loading frame unit, the guide rail actuate the group and be located between loading frame unit and the sunken terrace. The horizontal actuator group is symmetrically arranged on two sides of the loading frame unit and comprises a plurality of horizontal actuators, the vertical actuator group comprises a plurality of vertical actuators, and the guide rail actuator group comprises a plurality of guide rail actuators horizontally arranged. The reaction wall is rigidly connected with the sinking terrace.
Furthermore, the loading frame unit comprises a reaction frame matched with the top of the test piece and a pair of vertical force transmission pieces, the two vertical force transmission pieces are respectively positioned at two ends of the reaction frame and are in sliding connection with the reaction frame, the horizontal actuator group is positioned between the end part of the reaction frame and the reaction wall on the corresponding side, the vertical actuator group is positioned between the top of the vertical force transmission piece and the reaction frame, and the guide rail actuator group is positioned between the bottom of the vertical force transmission piece and the sunken terrace.
Furthermore, the side of the reaction wall is provided with a vertical notch, one end of the horizontal actuator group is connected with the end part of the reaction frame, and the other end of the horizontal actuator group is positioned in the vertical notch.
Furthermore, the vertical force transmission piece penetrates through the reaction frame in the vertical direction and is in sliding connection with the reaction frame, the bottom of the vertical actuator group is connected with the reaction frame, and the top of the vertical force transmission piece is connected with the top of the vertical force transmission piece. The reaction frame comprises a top plate, two side plates and two lug plates, wherein the two ends of the top plate are respectively connected with one side plate, and the two side plates are respectively connected with the two lug plates. The vertical force transmission piece comprises a top support, a connecting rod and a sliding block which are sequentially arranged from top to bottom, and the connecting rod penetrates through the lug plate in the vertical direction and is in sliding connection with the lug plate.
Furthermore, the formula of sinking terrace be n style of calligraphy.
Further, the guide rail actuator group is horizontally arranged between the bottom of the vertical force transmission piece and the inner side surface of the sunken terrace.
Furthermore, the formula of sinking terrace on be equipped with upper guideway and lower rail, the bottom of vertical biography power piece slide along the horizontal direction and set up between upper guideway and the lower rail.
Furthermore, the reaction frame and the sinking terrace are respectively provided with a hole matched with the test piece, and the reaction frame and the sinking terrace are respectively detachably connected with the test piece through anchor bolts.
Furthermore, the control unit comprises a control console and control circuits arranged between the control console and the horizontal actuator group, the vertical actuator group and the guide rail actuator group. The control console controls the displacement and the force of the actuator unit through a control circuit.
The test method based on the double-side loading type large-scale compression-shear-bending composite multifunctional loading test device comprises the following steps: utilize horizontal actuator group to exert the shear force to the test piece, utilize vertical actuator group to exert axial pressure to the test piece, exert the moment of flexure to the test piece through the pressure value that changes different actuators, the guide rail actuates the group simultaneously and produces and actuate the horizontal displacement that the group is unanimous with the level, and then carries out the reciprocal test of quiet power under the different load combinations to the test piece.
Compared with the prior art, the invention has the following characteristics:
1) the invention can realize full-scale or large-scale model test of the structural member, strictly ensure the accurate loading of the load action such as axial pressure, bending moment, shearing force and the like, and is convenient for researching the response characteristic of the large structural member under the combined action of various loads, in particular the hysteresis performance and the restoring force characteristic of the member.
2) According to the invention, the horizontal actuator groups on the two sides are symmetrically arranged, so that the control unit can conveniently carry out combined loading control, and the torsion of the test piece around the vertical direction and the deformation outside the loading plane can be prevented.
Drawings
FIG. 1 is a schematic vertical sectional view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic structural view of a reaction force supporting unit and a test piece according to the present invention;
FIG. 5 is a schematic structural diagram of a loading frame unit and a test piece according to the present invention;
FIG. 6 is a schematic structural view of an actuator unit and a control unit according to the present invention;
FIG. 7 is a schematic structural view of the upper and lower rails of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 1 at A;
FIG. 9 is an enlarged view of a portion of FIG. 1 at B;
the notation in the figure is:
101-horizontal actuator group, 102-vertical actuator group, 103-guide rail actuator group, 201-sunken terrace, 202-reaction wall, 301-upper guide rail, 302-lower guide rail, 401-reaction frame, 402-vertical force transmission piece, 5-test piece, 601-control console, 602-control circuit and 7-hole.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example (b):
the double-side loading type large-scale compression-shear-bending composite multifunctional loading test device shown in fig. 1, 2 and 3 comprises a reaction force supporting unit, a loading frame unit which is arranged on the reaction force supporting unit and is matched with a test piece 5, an actuator unit and a control unit which is electrically connected with the actuator unit. As shown in fig. 4, the reaction force supporting unit includes a sinking type terrace 201 and a pair of reaction force walls 202 disposed on the sinking type terrace 201 and respectively located at two sides of the sinking type terrace 201, the actuator unit includes a pair of horizontal actuator groups 101, a pair of vertical actuator groups 102 and a pair of guide rail actuator groups 103, the horizontal actuator groups 101 are located between the loading frame unit and the reaction force walls 202 at the corresponding side, the vertical actuator groups 102 are located on the loading frame unit, and the guide rail actuator groups 103 are located between the loading frame unit and the sinking type terrace 201.
As shown in fig. 5, the loading frame unit includes a reaction frame 401 adapted to the top of the test piece 5, and a pair of vertical force transmission members 402, where the two vertical force transmission members 402 are located at two ends of the reaction frame 401 and slidably connected to the reaction frame 401, the horizontal actuator group 101 is located between the end of the reaction frame 401 and the corresponding reaction wall 202, the vertical actuator group 102 is located between the top of the vertical force transmission member 402 and the reaction frame 401, and the guide rail actuator group 103 is located between the bottom of the vertical force transmission member 402 and the sunken floor 201. Vertical notches are formed in the side faces of the reaction wall 202, one end of the horizontal actuator group 101 is connected with the end portion of the reaction frame 401, and the other end of the horizontal actuator group is located in the vertical notches.
As shown in fig. 8, the vertical force transfer member 402 passes through the reaction frame 401 in the vertical direction and is slidably connected to the reaction frame 401, the bottom of the vertical actuator group 102 is connected to the reaction frame 401, and the top is connected to the top of the vertical force transfer member 402.
The sunken floor 201 is n-shaped. The guide rail actuator group 103 is horizontally arranged between the bottom of the vertical force transmission piece 402 and the inner side surface of the sunken floor 201.
As shown in fig. 7 and 9, an upper guide rail 301 and a lower guide rail 302 are arranged on the sunken floor 201, and the bottom of the vertical force transmission piece 402 is arranged between the upper guide rail 301 and the lower guide rail 302 in a sliding manner along the horizontal direction.
The reaction frame 401 and the sinking type terrace 201 are both provided with holes 7 matched with the test piece 5, and the reaction frame 401 and the sinking type terrace 201 are detachably connected with the test piece 5 through anchor bolts respectively.
As shown in fig. 6, the control unit includes a console 601 and a control circuit 602 disposed between the console 601 and the group of horizontal actuators 101, the group of vertical actuators 102, and the group of guide rail actuators 103.
When the device is installed, a reaction force supporting unit is designed and constructed and comprises a sunken terrace (201 and a reaction force wall 202), a slide block of a vertical force transmission piece 402 of a loading frame unit is combined with an upper guide rail 301 and a lower guide rail 302, the upper guide rail 301 and the lower guide rail 302 are respectively installed and fixed in the sunken terrace 201, a test piece 5 is fixed with the sunken terrace 201 through a reserved hole 7, the loading frame unit is installed, the reaction frame 401 and the test piece 5 are fixed together through the reserved hole 7, a connecting rod of the vertical force transmission piece 402 penetrates through a lug hole of the reaction frame 401 to be connected with the slide block of the vertical force transmission piece 402, an actuator unit is installed, one end of a horizontal actuator group 101 is connected with a vertical notch of the reaction force wall 202, the other end of the horizontal actuator group is connected with the side face of the lug plate of the reaction frame 401, one end of the vertical actuator group 102 is connected with the top face of the lug plate of the reaction frame 401, the other end of the vertical actuator group is connected with a top support of the vertical force transmission piece 402, one end of the guide rail actuator group 103 is connected with the side surface of the sunken terrace 201, and the other end is connected with the side surface of the slide block of the vertical force transmission piece 402; the control unit is mounted and the console 601 is connected to the respective actuator groups of the actuator units via control lines 602. The horizontal actuator group 101 can slide up and down in the vertical notch of the reaction wall 202 to adapt to test pieces 5 with different heights.
During the experiment, utilize horizontal actuator group 101 to exert the shear force to test piece 5, utilize vertical actuator group 102 to exert axial pressure to test piece 5, under the certain circumstances of total axial pressure of assurance, exert the moment of flexure to test piece 5 through the pressure value that changes different actuators, the guide rail actuates the horizontal displacement that group 103 produced and the horizontal actuator group 101 unanimity simultaneously, guarantees that the accuracy of axial force is applyed, and then carries out the static reciprocating test under the different load combination to test piece 5.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device is characterized by comprising a counter-force supporting unit, a loading frame unit, an actuator unit and a control unit, wherein the loading frame unit is arranged on the counter-force supporting unit and is matched with a test piece (5), the control unit is electrically connected with the actuator unit, the reaction force supporting unit comprises a sinking type terrace (201) and a pair of reaction force walls (202) which are arranged on the sinking type terrace (201) and are respectively positioned at the two sides of the sinking type terrace (201), the actuator unit comprises a pair of horizontal actuator groups (101), a pair of vertical actuator groups (102) and a pair of guide rail actuator groups (103), the horizontal actuator group (101) is positioned between the loading frame unit and the corresponding reaction wall (202), the vertical actuator group (102) is positioned on the loading frame unit, and the guide rail actuator group (103) is positioned between the loading frame unit and the sunken terrace (201).
2. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device according to claim 1, wherein the loading frame unit comprises a reaction frame (401) matched with the top of the test piece (5) and a pair of vertical force transmission members (402), the two vertical force transmission members (402) are respectively located at two ends of the reaction frame (401) and are in sliding connection with the reaction frame (401), the horizontal actuator group (101) is located between the end of the reaction frame (401) and the reaction wall (202) on the corresponding side, the vertical actuator group (102) is located between the top of the vertical force transmission member (402) and the reaction frame (401), and the guide rail actuator group (103) is located between the bottom of the vertical force transmission member (402) and the sunken terrace (201).
3. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device according to claim 2, wherein a vertical notch is formed in the side surface of the reaction wall (202), one end of the horizontal actuator group (101) is connected with the end of the reaction frame (401), and the other end of the horizontal actuator group is located in the vertical notch.
4. The double-side loading type large-scale press-shear-bending composite multifunctional loading test device according to claim 2, wherein the vertical force transmission piece (402) penetrates through the reaction frame (401) in the vertical direction and is in sliding connection with the reaction frame (401), the bottom of the vertical actuator group (102) is connected with the reaction frame (401), and the top of the vertical force transmission piece (402) is connected with the top of the vertical force transmission piece.
5. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device as claimed in claim 2, wherein the sunken terrace (201) is n-shaped.
6. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device according to claim 5, wherein the guide rail actuator group (103) is horizontally arranged between the bottom of the vertical force transmission piece (402) and the inner side surface of the sunken floor (201).
7. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device according to claim 6, wherein an upper guide rail (301) and a lower guide rail (302) are arranged on the sunken terrace (201), and the bottom of the vertical force transmission piece (402) is arranged between the upper guide rail (301) and the lower guide rail (302) in a sliding manner along the horizontal direction.
8. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device according to claim 2, wherein holes (7) matched with the test piece (5) are formed in the reaction frame (401) and the sunken terrace (201), and the reaction frame (401) and the sunken terrace (201) are detachably connected with the test piece (5) through anchor bolts respectively.
9. The double-side loading type large-scale compression-shear-bending composite multifunctional loading test device according to claim 1, wherein the control unit comprises a control console (601) and control lines (602) arranged between the control console (601) and the horizontal actuator group (101), the vertical actuator group (102) and the guide rail actuator group (103).
10. The test method based on the double-side loading type large-scale compression-shear-bending composite multifunctional loading test device as claimed in any one of claims 1 to 9 is characterized in that the method comprises the following steps: shear force is exerted on the test piece (5) by utilizing the horizontal actuator group (101), axial pressure is exerted on the test piece (5) by utilizing the vertical actuator group (102), bending moment is exerted on the test piece (5) by changing the pressure values of different actuators, meanwhile, the guide rail actuator group (103) generates horizontal displacement consistent with the horizontal actuator group (101), and then static force reciprocating tests under different load combinations are carried out on the test piece (5).
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| CN202110825766.3A CN113567273A (en) | 2021-07-21 | 2021-07-21 | Double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and method |
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| CN202110825766.3A CN113567273A (en) | 2021-07-21 | 2021-07-21 | Double-side loading type large-scale compression-shear-bending composite multifunctional loading test device and method |
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2021
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