KR20170094024A - Fixing device of testing apparatus for evaluating structural performance of structures - Google Patents
Fixing device of testing apparatus for evaluating structural performance of structures Download PDFInfo
- Publication number
- KR20170094024A KR20170094024A KR1020160014695A KR20160014695A KR20170094024A KR 20170094024 A KR20170094024 A KR 20170094024A KR 1020160014695 A KR1020160014695 A KR 1020160014695A KR 20160014695 A KR20160014695 A KR 20160014695A KR 20170094024 A KR20170094024 A KR 20170094024A
- Authority
- KR
- South Korea
- Prior art keywords
- slider
- fine adjustment
- bed
- adjustment groove
- seating
- Prior art date
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Classifications
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- 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
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
-
- 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
-
- 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
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V99/00—Subject matter not provided for in other groups of this subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
The present invention relates to a fixing device for a structure performance test apparatus, more specifically, it is possible to reset the position according to the condition of the test body, and the pedestal on which the test body is installed can be moved conveniently as needed without further punching, And to a fixing device for a structure performance test apparatus capable of testing a structure.
In general, an earthquake is a phenomenon in which a sudden movement occurs in a part of a rock constituting the earth due to the energy accumulated in the earth, and a seismic wave is generated. Sudden crustal fluctuations are generated in the earth, Seismic waves propagate to the ground surface and apply an external force to the ground.
Because of such an earthquake, buildings and civil engineering facilities are designed considering earthquake, seismic or damping. Of course, buildings and civil engineering facilities continue to receive lateral forces such as tensile and compressive forces on structures such as pillars and walls, even if they are not earthquakes.
Therefore, buildings and civil engineering facilities are experimented with the strength of the structures against the lateral force before they are reflected in the design.
As an example of a conventional experimental apparatus for such an experiment, Korean Patent No. 10-1352787 is representative. 1, a lateral force cylinder (actuator) 600 for applying a lateral force to the
In such a conventional art, the
Therefore, the applicant of the present invention has studied an experimental apparatus capable of measuring a variety of deformations and strengths by providing a lateral force in a vertical state to an object such as a column or a wall. (Prior Art 1) was developed.
In the
At this time, a lateral force cylinder is installed on one side of the mover to provide lateral force and axial force to the mover, and an axial force supplier is installed on the upper side of the mover.
However, in the above-described
In addition, the test body may be directly placed on the upper surface of the pedestal, and in some cases, a tray may be provided between the pedestal and the test body to prevent the upper surface of the pedestal from being damaged by the test body.
When the tray is installed between the pedestal and the specimen, the tray and the pedestal are fixed by bolting so that the specimen does not move arbitrarily during the test of the specimen. To this end, the pedestal and the tray are formed with a plurality of fastening holes to which the bolts are fastened.
However, when changing the position of the test object, it is necessary to move the tray from the upper part of the pedestal. When the tray is moved as described above, there is a difficulty in tightening the fastening hole with a new bolt in the pedestal corresponding to the changed position of the tray.
SUMMARY OF THE INVENTION The present invention provides a fixture for a structure performance test apparatus capable of quickly testing an object by allowing a pedestal on which the test object is installed to move conveniently as needed without further punching It has its purpose.
According to an aspect of the present invention, there is provided a bed comprising: a bed on which an experiment body made of a columnar or flat plate structure is mounted; And a slider for movably fixing at the upper portion of the bed.
The slider further includes a holder for integrally fixing the specimen to the slider. The holder includes a slider bracket fixed to an upper portion of the slider, and a slider bracket coupled to the slider bracket by a hinge, A rotating tilting bracket, and a fixing table mounted on the tilting bracket and fixed to the upper portion of the tilting bracket.
The slider includes a seating seat mounted on an upper portion of the bed, a movable block slidably mounted on the seating seat, a slider guide provided on the seating seat and the movable block for guiding movement of the movable block, .
The slider guide may include a first fine adjustment groove formed on an upper surface of the seating sheet, a first adjustment member through hole formed in the movable block corresponding to the first fine adjustment groove, A first adjustment member assembled in the first adjustment member through-hole, and a first binding member provided in the first micro adjustment groove and threaded with the first adjustment member.
The first fine adjustment groove is formed in a straight line on the upper surface of the seating sheet. The inlet of the first fine adjustment groove is opened to the upper surface of the seating sheet. The bottom of the first fine adjustment groove And is formed to be larger than the mouth of the first fine adjustment groove, so that the binding member is positioned.
The apparatus may further include a fine adjustment guide provided on the bed and the seating seat to guide and fix the movement of the seating seat.
The fine adjustment guide may include a second fine adjustment groove formed in the upper surface of the bed, a second adjustment member through hole formed in the seating sheet corresponding to the second fine adjustment groove, And a second coupling member provided in the second fine adjustment groove and fastened to the second adjustment member in a threaded manner.
The seating seat may further include a rolling portion for lifting the top surface of the bed to reduce friction between the bed and the seating sheet, wherein the rolling portion includes a rolling hole formed in the bottom surface of the seating seat, And a resilient member interposed between the rolling ball and the rolling ball.
According to the fixing device for the apparatus for testing the performance of a structure according to the present invention, since the slider moves by the slider on which the test specimen is installed, it is possible to reset the specimen position according to the axial force and the lateral force without separating the specimen from the slider. And it is not necessary to form a perforation for fixing the slider to the bed.
In addition, according to the present invention, since the holder is mounted on the upper part of the slider, the specimen can be rotated and the position of the specimen can be reset according to the axial force and the lateral force without separating the specimen.
In addition, the slider for moving the test specimen has a two-stage structure, so that the movement of the specimen t can be precisely controlled.
1 is a view showing a conventional experimental apparatus.
2 is a perspective view showing a fixing device for a performance testing apparatus according to the present invention.
FIG. 3 is a cross-sectional view showing a fixing device for a performance testing apparatus according to the present invention, wherein FIG. 3 (A) is a cross-sectional view of the fixing device shown in FIG. 2 and FIG. 3 (B) is a sectional view showing a rolling part provided in the movable block.
FIG. 4 is a perspective view illustrating a state where a cradle is mounted on a fixing device for a performance testing apparatus according to the present invention.
FIG. 5 is an exploded perspective view showing a state where a cradle is mounted on a fixing device for a performance testing apparatus according to the present invention.
6 is a cross-sectional view illustrating a state where a holder is mounted on a fixing device for a performance testing apparatus according to the present invention.
7 is an exploded perspective view showing another embodiment of a slider in a fixing device for a performance testing apparatus according to the present invention.
8 is an exploded perspective view showing still another embodiment of a slider in a fixing device for a performance testing apparatus according to the present invention.
9 and 10 are a perspective view and a side view showing the operation of a fixing device for a performance testing apparatus according to the present invention.
11 is a cross-sectional view showing another embodiment of a slider of a fixing device for a performance testing apparatus according to the present invention.
The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a perspective view showing a fixing device for a performance testing device according to the present invention, and FIG. 3 is a sectional view showing a fixing device for a performance testing device according to the present invention.
A fixing device for a performance testing apparatus according to the present invention includes a
The
The upper surface of the
The
On the other hand, the
To this end, the
That is, the
The
A plurality of
Therefore, when the
2 and 3, a
The
A
The
The first
At this time, the bottom L2 of the first
A plurality of first adjustment member through
When the first
When the
That is, when the
A rolling portion may be provided on the
The rolling
The rolling
The rolling
Meanwhile, the upper portion of the
In other words, the
The mounting
Meanwhile, according to another embodiment of the present invention, a holder for fixing the test object to the
FIG. 4 is a perspective view showing a state where a holder is mounted on a fixing device for a performance testing apparatus according to the present invention, and FIG. 5 is an exploded perspective view showing a state where a holder is mounted on a fixing device for a performance testing apparatus according to the present invention. And FIG. 6 is a side cross-sectional view showing a state in which a cradle is mounted on a fixing device for a performance testing apparatus according to the present invention.
A fixing device for a performance testing apparatus according to the present invention comprises a
The
The tilting
9 and 10, the fixing device according to the present invention having such a configuration is installed in a structure performance test apparatus provided with a press 2 for providing an axial force or a lateral force.
In other words, the structure performance test apparatus is provided with a press 2 to provide an axial force or a lateral force to the specimen t installed in the fixture. To this end, a
The
An axial force press or a lateral force press is installed in the
At this time, the specimen t is fixed to the fixing table 333 of the fixing table 330 provided on the
When the specimen t is fixed to the fixing table 333, the axial force or the lateral force is applied to the specimen t from the press 2 provided in the
In some cases, a
7 is an exploded perspective view showing another embodiment of a slider in a fixing device for a performance testing apparatus according to the present invention.
Referring to the drawings, a
The
The second
The
Thus, even if the
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .
7, when the
7, when the
Further, in the fixing device for the apparatus for testing the performance of the structure according to the present invention, the
11 is a cross-sectional view showing another embodiment of a slider of a fixing device for a performance testing apparatus according to the present invention.
A
The fastening holes 322c and 323c formed in the
As described above, when the
The
1: Bed 2: Press
10: Cant tree 311: Assembly hole
320: Slider 321: Assembly hole
322:
322c, 323c: fastening hole 323: movable block
323a: first adjusting member through hole 324: first adjusting member
326: fastening member 327: fastening member
328: Bracket 330: Cradle
331: Slider bracket 332: Tilting bracket
333: fixed base 340: slider guide
350: fine adjustment guide 360: rolling part
361: Rolling Hole 362: Cloud Ball
363: elastic member t: specimen
Claims (8)
And a slider which is seated on an upper portion of the bed and which is movably fixed at an upper portion of the bed in a state that the specimen is loaded on the upper portion.
The slider
And a holder for integrally fixing the test body to the slider,
The cradle
A slider bracket fixed to an upper portion of the slider;
A tilting bracket coupled to the slider bracket by a hinge and rotated about the hinge; And
And a fixing unit installed on the tilting bracket and fixed to the upper portion of the tilting bracket.
The slider
A seating seat mounted on the top of the bed;
A movable block slidably mounted on an upper portion of the seating sheet; And
And a slider guide provided on the seating sheet and the movable block for guiding movement of the movable block.
The slider guide
A first fine adjustment groove formed on an upper surface of the seating sheet;
A first adjustment member through-hole formed in the movable block corresponding to the first fine adjustment groove;
A first adjustment member assembled to the first fine adjustment groove and the first adjustment member through-hole; And
And a first coupling member provided in the first fine adjustment groove and threadedly coupled to the first adjustment member.
The first fine adjustment groove
The inlet of the first fine adjustment groove is opened to the upper surface of the seating sheet, the bottom of the first fine adjustment groove is formed in the inside of the seating sheet, and the inlet of the first fine adjustment groove And the binding member is positioned at a predetermined position of the fixing member.
And a fine adjustment guide provided on the bed and the seating seat for guiding and fixing the movement of the seating seat.
The fine adjustment guide
A second fine adjustment groove formed on an upper surface of the bed;
A second adjustment member through-hole formed in the seating sheet corresponding to the second fine adjustment groove;
A second adjusting member assembled to the second fine adjustment groove and the second adjustment member through hole; And
And a second coupling member provided in the second fine adjustment groove and threaded with the second adjustment member.
The seating sheet
And a rolling part for lifting up from the upper surface of the bed to reduce friction between the bed and the seating sheet,
The rolling part
A rolling hole formed on a bottom surface of the seating sheet;
A rolling ball provided in the rolling hole and in rolling contact with the bed; And
And a resilient member interposed between the rolling ball and the rolling hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160014695A KR101787018B1 (en) | 2016-02-05 | 2016-02-05 | Fixing device of testing apparatus for evaluating structural performance of structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160014695A KR101787018B1 (en) | 2016-02-05 | 2016-02-05 | Fixing device of testing apparatus for evaluating structural performance of structures |
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Publication Number | Publication Date |
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KR20170094024A true KR20170094024A (en) | 2017-08-17 |
KR101787018B1 KR101787018B1 (en) | 2017-10-19 |
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KR1020160014695A KR101787018B1 (en) | 2016-02-05 | 2016-02-05 | Fixing device of testing apparatus for evaluating structural performance of structures |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113968357A (en) * | 2021-10-21 | 2022-01-25 | 南京航空航天大学 | Loading device and method for simulating pneumatic load of special-shaped cabin section |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR200408958Y1 (en) * | 2005-11-25 | 2006-02-15 | 경신공업 주식회사 | a bottom jig of a tester |
KR200423335Y1 (en) * | 2006-05-24 | 2006-08-07 | 동해전장 주식회사 | A vise apparatus |
KR101556244B1 (en) * | 2015-04-07 | 2015-10-01 | 공주대학교 산학협력단 | Testing apparatus for evaluating structural performance of structures |
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2016
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113968357A (en) * | 2021-10-21 | 2022-01-25 | 南京航空航天大学 | Loading device and method for simulating pneumatic load of special-shaped cabin section |
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KR101787018B1 (en) | 2017-10-19 |
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