CN106644443A - Clamping base device of hollow flange steel beam stabilization test - Google Patents
Clamping base device of hollow flange steel beam stabilization test Download PDFInfo
- Publication number
- CN106644443A CN106644443A CN201611203178.1A CN201611203178A CN106644443A CN 106644443 A CN106644443 A CN 106644443A CN 201611203178 A CN201611203178 A CN 201611203178A CN 106644443 A CN106644443 A CN 106644443A
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- track
- clamp
- sliding clamp
- stand apparatus
- floating holder
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 230000006641 stabilisation Effects 0.000 title abstract 4
- 238000011105 stabilization Methods 0.000 title abstract 4
- 238000013112 stability test Methods 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 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
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses a clamping base device of a hollow flange steel beam stabilization test. The device comprises a column track fixed on a fixed plate and an upper clamp track and a lower clamp track which are arranged on the column track. The central part of the upper clamp track is movably connected with an upper sliding clamp; the central part of the lower clamp track is movably connected with a lower sliding clamp; a test piece for the test is arranged between the upper sliding clamp and the lower sliding clamp; the position of the connection of the column track and the upper clamp track and the position of the connection of the column track and the lower clamp track are matchingly connected through an arc surface; and the upper sliding clamp, the lower sliding clamp and the corresponding upper clamp track and the lower clamp track are matchingly connected through the arc surface. The clamping base device of the hollow flange steel beam stabilization test can realize that the section of the hollow flange steel beam end portion only can perform free rotation around two principal axes of the x axis and the y axis of the beam section and also can restrict the torsion of the section of the hollow flange steel beam end portion around the vertical axis of the z axis, wherein the section of the end portion can perform free warpping. Whatever the section of the test piece is symmetrical or not, the clamping base device of the hollow flange steel beam stabilization test can realize the ideal clamping and holding of the test piece.
Description
Technical field
The present invention relates to the folder stand apparatus technical field of the girder steel stability test of civil engineering, more particularly to, solves
A kind of folder stand apparatus of the preferable folder of boundary condition is propped up hollow wing balsh beam stability test during hollow wing balsh beam stability test.
Background technology
Beam as structure main member, when for narrow high deep beam or girder steel when, its stable problem seems increasingly important.Closely
Substantial amounts of scientific research has been carried out to the stable problem of girder steel over year, and the most strong checking of scientific theory is ground based on test
Study carefully.The stability test of hollow wing balsh beam requires that boundary condition is folder, and so-called folder refers to that the end cross-sectional of component can only be around hollow wing
Two main shaft x-axis of balsh beam section and y-axis are freely rotated, and can not be reversed around longitudinal axis z-axis, when existing not in hollow wing balsh beam
During uniform torsion, the edge of a wing of end cross-sectional can free warpage.By to current existing minority with regard to common beam stability test
The research of situation and professional finds, compared with common girder steel, the FREE TORSION rigidity and warp stiffness of hollow wing balsh beam will
It is bigger, therefore the requirement to experimental rig is higher, if therefore hollow wing balsh beam bearing do not reach the constraint of preferable folder will
Ask, its stability bearing capacity（Flexing Critical Bending Moment）Can reduce, if clamping beam-ends completely again equivalent to hold-down support, not meet reality
Border requires.Therefore, design is a kind of rationally, applicability is wider, fully realize that the bearing of ideal folder is particularly important.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides one kind is more suitable for hollow wing balsh Liang Wendingshiyanliang
The folder stand apparatus at end, it is preferable folder stand apparatus that it is used to solve particular/special requirement boundary condition during hollow wing balsh beam stability test
Problem.This device can both realize that hollow wing balsh beam end section can only freely turn around the two of beam section main shaft x-axis and y-axis
It is dynamic, the torsion around longitudinal axis z-axis can be limited again, but end cross-sectional can free warpage.No matter whether test specimen section is symmetrical, this folder
Stand apparatus are capable of achieving the preferable folder to test specimen；Additionally, this device its clamped height and width can enter according to actual test specimen
Row is adjusted, and making is simple and convenient to operate.
The technical solution adopted in the present invention is：A kind of folder stand apparatus of hollow wing balsh beam stability test, including fixation
Column track in fixed plate, and the upper fixture track and lower clamp rail on column track；Wherein：
Upper fixture track, middle part has been movably connected with sliding clamp；
Lower clamp rail, middle part has been movably connected with lower floating holder；
Test test specimen is placed between upper sliding clamp and lower floating holder；
It is connected by arc surface at column track and upper fixture track and lower clamp rail link position；Upper sliding clamp,
The corresponding upper fixture track of lower floating holder and lower clamp rail are similarly arc surface and are connected.
Upper sliding clamp and lower floating holder are T font structures, be equipped with the T font head positions of the rwo,
Lower circular groove；It is upper and lower circular arc rail on upper fixture track upper and lower circular groove corresponding with lower clamp rail, direction
Road face.
Further, upper sliding clamp and lower floating holder are connected to device its corresponding column rail by a screw rod respectively
On road, several adjusting nuts are connected with each screw rod.
Further, upper sliding clamp and lower floating holder are fixedly connected by a joint with column track, and
Curved flanges are provided with column track and joint link position, are provided with circular recessed at each joint correspondence curved flanges position
Groove.
Further, the two-sided of column track is equipped with two flanges, and two flanges near joint are wrapped in arc
In flange.
Further, upper fixture track and lower clamp rail are respectively equipped with one at its end positions and vertically adjust spiral shell
Bar, is configured with corresponding adjusting nut on vertical adjusting screw rod.
Further, on upper fixture track and lower clamp rail upper sliding clamp and the quantity of lower floating holder is respectively
Two, test test specimen is clamped on two between sliding clamp and two lower floating holders.
Further, column track is foundry goods, and upper sliding clamp and lower floating holder are made up of No. 45 steel.
Further, fixed plate is made up of Q235 steel.
Compared with prior art, the invention has the beneficial effects as follows：（1）It is capable of achieving preferably folder constraint.Due to the present invention
Beam-ends is constrained by designing slidable fixture and clamp rail, upper lower clamp rail and both sides sliding clamp adopt circular arc
Face, the contact so between test specimen is linear contact lay；The vertical and horizontal displacement of hollow wing balsh beam-ends can be limited and around the longitudinal axis
Torsion, but do not limit the buckling deformation in hollow wing balsh beam-ends section and freely rotating along two main shaft x-axis and y-axis, so as to
Realize the boundary condition of preferable folder.
（2）Preferable folder constraint can be realized to the component of arbitrary section form.Because this folder bearing is to pressing from both sides Zhi Gaodu and width
Degree can be adjusted, so this device can be repeatedly applied to different stability test test specimens.Further, since the two of this device
Sliding clamp is located on clamp rails different up and down respectively, therefore, this device is to asymmetric or left-right asymmetry up and down
Test specimen section can realize reliable preferable folder constraint.
（3）Simple structure, it is easy to make, it is simple to operate.The design composition that bearing is pressed from both sides in the present invention is a kind of innovation, its structure
Make simple, fabrication and installation are convenient, applicability is extensive.
Description of the drawings
Fig. 1 is a kind of front view of one embodiment of the folder stand apparatus of hollow wing balsh beam stability test；
Fig. 2 for Fig. 1 3-D view；
Fig. 3 is the column track and fixed plate connection figure of the embodiment of Fig. 1；
Fig. 4 is the clamp rail figure of the embodiment of Fig. 1；
Fig. 5 is the sliding clamp figure of the embodiment of Fig. 1；
Fig. 6 is the sliding clamp of the embodiment of Fig. 1 and the assembling figure of clamp rail；
Fig. 7 is the assembling figure of the package unit of the embodiment of Fig. 1；
Wherein：1- column tracks, 101- curved flanges, 102- flanges；2- upper fixture tracks, the upper arc-shaped rail faces of 21-；On 3-
Sliding clamp, the upper circular grooves of 31-；4- fixed plates, 5- screw rods, 6- lower clamp rails, arc-shaped rail face under 61-；Under 7-
Floating holder, circular groove under 71-；8- tests test specimen, the vertical adjusting screw rods of 9-, 10- joints, 1001- circular grooves.
Specific embodiment
In order to deepen the understanding of the present invention, with reference to the accompanying drawings and examples the present invention is further described, the enforcement
Example is only used for explaining the present invention, protection scope of the present invention is not constituted and is limited.
As depicted in figs. 1 and 2, a kind of folder stand apparatus of hollow wing balsh beam stability test, including being fixed in fixed plate 4
Column track 1, and the upper fixture track 2 and lower clamp rail 6 on column track 1；Wherein：Upper fixture track 2, it is middle
Position has been movably connected with sliding clamp 3；Lower clamp rail 6, middle part has been movably connected with lower floating holder 7；Upper cunning
Test test specimen 8 is placed between dynamic fixture 3 and lower floating holder 7；Column track 1 is connected with upper fixture track 2 and lower clamp rail 6
It is connected by arc surface at position；The corresponding upper fixture track 2 of upper sliding clamp 3, lower floating holder 7 and lower clamp
Track 6 is similarly arc surface and is connected.Because the present invention constrains beam-ends by designing slidable fixture and clamp rail,
Upper lower clamp rail and both sides sliding clamp adopt arc surface, the contact so between test specimen to be linear contact lay；Can limit
The vertical and horizontal displacement and the torsion around the longitudinal axis of hollow wing balsh beam-ends, but do not limit the buckling deformation in hollow wing balsh beam-ends section
With freely rotating along two main shaft x-axis and y-axis, so as to realize the boundary condition of preferable folder.
Referring to Fig. 4, Fig. 5 and Fig. 6, upper sliding clamp 3 and lower floating holder 7 are T font structures, the T fonts of the rwo
Circular groove 31, lower circular groove 71 are equipped with head position；On upper fixture track 2 and the correspondence of lower clamp rail 6
It is upper arc-shaped rail face 21, lower arc-shaped rail face 61 on circular groove 31, the direction of lower circular groove 71, so as to realize
The arc surface connection of fixture clamp rail corresponding with device is slided up and down, the connected mode intensity is higher, and service life is longer.
As can be seen that upper sliding clamp 3 and lower floating holder 7 are connected to respectively by a screw rod 5 from Fig. 1 and Fig. 2
On device its corresponding column track 1, on each screw rod 5 several adjusting nuts are connected with, so as to easily adjust manually it is upper,
Height of the lower slider fixture on column track 1.
Such as Fig. 2 and Fig. 4, upper sliding clamp 3 and lower floating holder 7 are fixed with column track 1 by a joint 10 and connected
Connect, and curved flanges 101 are provided with column track and joint link position, each correspondence curved flanges 101 of joint 10
The place of putting is provided with circular groove 1001, with preferable fiting effect.
In the above-described embodiments, as shown in Figure 3 and Figure 7, the two-sided of column track 1 is equipped with two flanges 102, close to connect
10 two flanges 102 are wrapped in curved flanges 101, are connected more preferably tight.
In the above-described embodiments, such as Fig. 2 and Fig. 7, upper fixture track 2 and lower clamp rail 6 are distinguished at its end positions
A vertical adjusting screw rod 9 is provided with, corresponding adjusting nut is configured with vertical adjusting screw rod 9.
In the above-described embodiments, on upper fixture track 2 and lower clamp rail 6 upper sliding clamp 3 and lower floating holder 7
Quantity is respectively two, and test test specimen 8 is clamped in two above between sliding clamp 3 and two lower floating holders 7, with more
Good clamping dynamics.
In the above-described embodiments, preferably embodiment is, column track 1 is foundry goods, upper sliding clamp 3 and lower activity folder
Tool 7 is made up of No. 45 steel.Fixed plate 4 is made up of Q235 steel.And the screw rod 5 and vertical adjusting screw rod 9 of connection is plain bolt
.
The folder stand apparatus of the suitable hollow wing balsh beam stability test beam-ends of the present invention, it stablizes for solving hollow wing balsh beam
Particular/special requirement boundary condition is the problem of preferable folder stand apparatus during test.This device can both realize that hollow wing balsh beam end was cut
Face can only freely rotate around the two of beam section main shaft x-axis and y-axis, and the torsion around longitudinal axis z-axis, but end cross-sectional can be limited again
Can free warpage.No matter whether test specimen section is symmetrical, and this folder stand apparatus are capable of achieving the preferable folder to test specimen；Additionally,
This device its clamped height and width can be adjusted according to actual test specimen, and making is simple and convenient to operate.
What embodiments of the invention were announced is preferred embodiment, but is not limited thereto, the ordinary skill people of this area
Member, easily according to above-described embodiment, understands the spirit of the present invention, and makes different amplifications and change, but as long as without departing from this
The spirit of invention, all within the scope of the present invention.
Claims (9)
1. a kind of folder stand apparatus of hollow wing balsh beam stability test, it is characterised in that：Including being fixed on fixed plate（4）On it is vertical
Post track（1）, and located at column track（1）On upper fixture track（2）And lower clamp rail（6）；Wherein：
Upper fixture track（2）, middle part has been movably connected with sliding clamp（3）；
Lower clamp rail（6）, middle part has been movably connected with lower floating holder（7）；
Upper sliding clamp（3）With lower floating holder（7）Between place test test specimen（8）；
Column track（1）With upper fixture track（2）And lower clamp rail（6）It is connected by arc surface at link position；On
Sliding clamp（3）, lower floating holder（7）Corresponding upper fixture track（2）And lower clamp rail（6）It is similarly arc surface to match somebody with somebody
Close connection.
2. folder stand apparatus according to claim 1, it is characterised in that：The upper sliding clamp（3）With lower floating holder
（7）T font structures are, in the T font head positions of the rwo upper and lower circular groove is equipped with（31、71）；Upper fixture rail
Road（2）And lower clamp rail（6）The upper and lower circular groove of correspondence（31、71）It is upper and lower arc-shaped rail face on direction（21,
61）.
3. folder stand apparatus according to claim 2, it is characterised in that：The upper sliding clamp（3）With lower floating holder
（7）Pass through a screw rod respectively（5）It is connected to device its corresponding column track（1）On, each screw rod（5）On be connected with it is some
Individual adjusting nut.
4. folder stand apparatus according to claim 1, it is characterised in that：The upper sliding clamp（3）With lower floating holder
（7）Pass through a joint（10）With column track（1）It is fixedly connected, and sets at the column track and joint link position
There are curved flanges（101）, each described joint（10）Correspondence curved flanges（101）Circular groove is provided with position（1001）.
5. folder stand apparatus according to claim 4, it is characterised in that：The column track（1）Two-sided be equipped with two
Individual flange（102）, near joint（10）Two flanges（102）It is wrapped in curved flanges（101）It is interior.
6. according to claim 1-5 anticipate one described in folder stand apparatus, it is characterised in that：The upper fixture track（2）With under
Clamp rail（6）A vertical adjusting screw rod is respectively equipped with its end positions（9）, vertical adjusting screw rod（9）On be configured with
Corresponding adjusting nut.
7. folder stand apparatus according to claim 5, it is characterised in that：Upper fixture track（2）And lower clamp rail（6）On
Upper sliding clamp（3）With lower floating holder（7）Quantity be respectively two, test test specimen（8）It is clamped in two upper slips
Fixture（3）And two lower floating holders（7）Between.
8. folder stand apparatus according to claim 1 or 3 or 4 or 5 or 7, it is characterised in that：Column track（1）For foundry goods,
Upper sliding clamp（3）With lower floating holder（7）It is made up of No. 45 steel.
9. folder stand apparatus according to claim 1, it is characterised in that：Fixed plate（4）It is made up of Q235 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203178.1A CN106644443B (en) | 2016-12-23 | 2016-12-23 | A kind of folder stand apparatus of hollow wing balsh beam stability test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203178.1A CN106644443B (en) | 2016-12-23 | 2016-12-23 | A kind of folder stand apparatus of hollow wing balsh beam stability test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644443A true CN106644443A (en) | 2017-05-10 |
| CN106644443B CN106644443B (en) | 2019-02-15 |
Family
ID=58826598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611203178.1A Active CN106644443B (en) | 2016-12-23 | 2016-12-23 | A kind of folder stand apparatus of hollow wing balsh beam stability test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644443B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341992A (en) * | 2018-11-01 | 2019-02-15 | 广州大学 | A kind of experimental provision for vibration mechanics modal test |
| CN109406127A (en) * | 2018-11-30 | 2019-03-01 | 广州大学 | A kind of backed experimental provision for increasing test specimen load of band |
| CN110253471A (en) * | 2019-07-16 | 2019-09-20 | 宝业集团浙江建设产业研究院有限公司 | A kind of flexible jig for structural mechanics test |
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| US4719804A (en) * | 1985-08-19 | 1988-01-19 | Tokyo Institute Of Technology | Apparatus for testing performance of clamp screw in elastic and plastic regions |
| CN102401765A (en) * | 2011-11-24 | 2012-04-04 | 清华大学 | Lateral restraining device for load test of steel-structure compression member |
| CN105092223A (en) * | 2015-06-19 | 2015-11-25 | 重庆大学 | Integral stabilization test loading system of steel beam with lateral constriction under effect of single point loading |
| CN105973576A (en) * | 2016-03-28 | 2016-09-28 | 合肥工业大学 | Simple device applied to hinge support component manual loading compression test |
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2016
- 2016-12-23 CN CN201611203178.1A patent/CN106644443B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| US4719804A (en) * | 1985-08-19 | 1988-01-19 | Tokyo Institute Of Technology | Apparatus for testing performance of clamp screw in elastic and plastic regions |
| CN102401765A (en) * | 2011-11-24 | 2012-04-04 | 清华大学 | Lateral restraining device for load test of steel-structure compression member |
| CN105092223A (en) * | 2015-06-19 | 2015-11-25 | 重庆大学 | Integral stabilization test loading system of steel beam with lateral constriction under effect of single point loading |
| CN105973576A (en) * | 2016-03-28 | 2016-09-28 | 合肥工业大学 | Simple device applied to hinge support component manual loading compression test |
Non-Patent Citations (1)
| Title |
|---|
| 熊刚等: "Q460GJ钢焊接H形梁整体稳定性能试验研究", 《工程力学》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341992A (en) * | 2018-11-01 | 2019-02-15 | 广州大学 | A kind of experimental provision for vibration mechanics modal test |
| CN109406127A (en) * | 2018-11-30 | 2019-03-01 | 广州大学 | A kind of backed experimental provision for increasing test specimen load of band |
| CN109406127B (en) * | 2018-11-30 | 2023-10-27 | 广州大学 | Experimental device for increase test piece load with support |
| CN110253471A (en) * | 2019-07-16 | 2019-09-20 | 宝业集团浙江建设产业研究院有限公司 | A kind of flexible jig for structural mechanics test |
| CN110253471B (en) * | 2019-07-16 | 2024-02-02 | 宝业集团浙江建设产业研究院有限公司 | Adjustable clamp for structural mechanics test |
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| Publication number | Publication date |
|---|---|
| CN106644443B (en) | 2019-02-15 |
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Application publication date: 20170510 Assignee: Nanjing Institute of Engineering Technical Service Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2024980002478 Denomination of invention: A Clamping Support Device for Stability Test of Steel Beams with Empty Wing Edges Granted publication date: 20190215 License type: Common License Record date: 20240305 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170510 Assignee: NANJING HOLMES INTELLIGENT TECHNOLOGY Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2024980002732 Denomination of invention: A Clamping Support Device for Stability Test of Steel Beams with Empty Wing Edges Granted publication date: 20190215 License type: Common License Record date: 20240312 |