CN105716894B - Device for testing out-of-plane stable bearing capacity of arched steel structure - Google Patents
Device for testing out-of-plane stable bearing capacity of arched steel structure Download PDFInfo
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- CN105716894B CN105716894B CN201610188896.XA CN201610188896A CN105716894B CN 105716894 B CN105716894 B CN 105716894B CN 201610188896 A CN201610188896 A CN 201610188896A CN 105716894 B CN105716894 B CN 105716894B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 119
- 239000010959 steel Substances 0.000 title claims abstract description 119
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000000087 stabilizing effect Effects 0.000 claims description 27
- 238000010276 construction Methods 0.000 claims description 4
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000006399 behavior Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides an out-of-plane stable bearing capacity test device for an arch-shaped steel structure, which comprises: the device comprises a loading frame, a loading hemisphere, a U-shaped bidirectional hinge, a rigid beam, a ground beam and a jack; one end of the loading hemisphere is connected to the arched steel structure, the other end of the loading hemisphere is connected to the loading frame, one end of the U-shaped bidirectional hinge is connected with the lower end of the loading frame, the other end of the U-shaped bidirectional hinge is connected with one end of the rigid beam, the jack acts on the middle position of the rigid beam, and the other end, opposite to the U-shaped bidirectional hinge, of the rigid beam and the ground form a hinged support; the two ends of the arched steel structure are connected with the ground beam; the structure not only has accurate and reliable test, but also can enable the tested arched steel structure to freely generate out-of-plane displacement, torsional deformation, in-plane displacement and in-plane rotation, and truly reflects the out-of-plane instability characteristic of the arched steel structure.
Description
Technical field
The invention belongs to arch steel structure technical field more particularly to a kind of Outside-plate stabilizings for arch steel structure
The arch steel structure Outside-plate stabilizing test device for multifunctional that property is tested.
Background technology
With the development of national economy, build the large spaces such as sport, leisure, exhibition, air harbor, the hangar of more biggers and
The demand of extra space building is very vigorous.Such construction style is generally space arch steel structure, and structural shape can be divided into
Rack (light steel), space truss (weight steel) etc..These buildings are usually all with span is big, moulding is unique, stress is complicated and builds
Has the characteristics that geographical indicator meaning at rear.
Currently, the research range of the Outside-plate stabilizing performance of this large-span arch steel construction is concentrated mainly on two sides
Face：One is bent to Buckling Behavior outside the plane of steel arch and elasticity using theory of elastic mechanics combination balancing method or energy method
Qu Zaihe is studied；Another kind is to consider material nonlinearity, geometrical non-linearity, initial geometrical defect and section residual stress etc.
Factor studies Elasto-plastic Stability bearing capacity outside the plane of steel arch structure, and proposes corresponding Elasto-plastic Stability bearing capacity
Design method.For the latter, existing research method is mainly finite element numerical simulation, and many scholars are soft using common finite element
Part (such as ANSYS, ABAQUS) or self-editing finite element program have carried out a large amount of numerical analysis.But due to the making of steel arch component
And experimental design is relative complex, and it is then relatively fewer for the Outside-plate stabilizing experimental study of steel arch structure at present, carry out steel arch knot
The Outside-plate stabilizing bearingtest of structure by bending stress performance outside the deep plane for understanding steel arch structure, reliable examination is provided
It tests data and the outer Elastic-plastic Design Method of plane for finally establishing steel arch structure is of great significance.
It is to be loaded directly into method that existing load testing machine carries out the method that load test generally uses to test specimen, i.e., by thousand
The loading end on jin top acts directly on test specimen.For occurring outside plane for the domes of unstability, using being loaded directly into method,
Since the load(ing) point of steel arch structure during stand under load will produce a degree of bending, sidesway and torsional deflection, then very heavy
The loading end on top can constrain deformity out of plane and the torsional deflection of load(ing) point, therefore cannot really reflect that the plane of steel arch is lost outside
Steady characteristic influences the correctness of test result.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of arch steel structure Outside-plate stabilizing bearingtest dress
It sets, it is intended to which it is accurate, reliable that it is not only tested, but also can enable tested arch steel structure that the outer position of plane freely occurs
Shifting, torsional deflection, plane displacement and rotation in surface, the true outer buckling behaviors of the plane for reflecting arch steel structure.
The invention is realized in this way a kind of arch steel structure Outside-plate stabilizing test device for multifunctional comprising：Load
Frame, load hemisphere, the two-way hinge of U-shaped, buckstay, ground beam and jack；One end of the load hemisphere is connected to arch steel knot
On structure, the other end is connected on the loading frame, and one end of the two-way hinge of U-shaped is connect with the lower end of the loading frame,
The other end is connect with one end of the buckstay, and the jack acts on the centre position of the buckstay, the buckstay
The other end opposite with the two-way hinge of the U-shaped forms pivoting support with ground；The both ends of the arch steel structure and the ground beam
It is connected；
Further, arch steel structure Outside-plate stabilizing test device for multifunctional above-mentioned further includes load connector, institute
Load connector is stated the loading frame is connected on the arch steel structure by the load hemisphere；The load connection
Part includes cushion block and weighted platform；The upper end of the cushion block is connect with the load hemisphere, and the lower end of the cushion block is carried on institute
It states on weighted platform, and the lower end of the weighted platform is carried on the arch steel structure.Further, load frame above-mentioned
Frame is rectangle structure comprising two opposite lower girder steels and upper girder steel in horizontal parallel setting, and respectively with the upper steel
Beam and two pull rods of lower girder steel connection；Described two pull rods are in be arranged in parallel relatively and be respectively perpendicular to the upper girder steel
And the lower girder steel；Ribs is provided in the lower girder steel to increase the intensity of the lower girder steel；The lower girder steel passes through institute
It states the two-way hinge of U-shaped to connect with the buckstay, the upper girder steel is connected to by the load hemisphere and the load connector
On the arch steel structure.
Further, upper girder steel above-mentioned and the tie point of the load hemisphere are hemispherical, the loading frame and institute
The load(ing) point for stating arch steel structure contact is hemispherical, and the load(ing) point can be freely rotated.
Further, the two-way hinge of U-shaped above-mentioned includes the U-shaped clamping member of two make-ups and respectively by two U-shaped clamping members
The corresponding multiple nuts being fixed on the lower girder steel and the rigidity beam；The U-shaped clamping member ensures the loading frame hair
It is not constrained by the buckstay when raw lateral deformation.
Further, buckstay one end above-mentioned with the U-shaped is two-way is hinged；When the jack is acting downwardly on institute
When stating the centre position of buckstay to apply load, the load on the load(ing) point of the arch steel structure applies for the jack
Load half.
Compared with prior art, the present invention advantageous effect is：The arch steel structure plane that embodiment of the present invention provides
Outer stability bearing capacity experimental rig, by the way that the load(ing) point on arch steel structure will be loaded using the U-shaped clamping member of two make-ups
Frame is connected with the buckstay of bottom, and the load(ing) point contacted with the arch steel structure in the loading frame is designed as half
Spherical shape carries out Outside-plate stabilizing bearing capacity load test using Indirect Loaded method to the arch steel structure, not only test it is accurate,
Reliably, and can enable tested arch steel structure freely occur plane outer displacement, torsional deflection, plane displacement and
Rotation in surface, the true outer buckling behaviors of the plane for reflecting arch steel structure.
Description of the drawings
Fig. 1 is that arch steel structure Outside-plate stabilizing test device for multifunctional provided in an embodiment of the present invention is installed to arch steel
Structural schematic diagram in structure.
Fig. 2 is the structural schematic diagram of the arch steel structure Outside-plate stabilizing test device for multifunctional in Fig. 1.
Fig. 3 is another angled arrangement schematic diagram of the arch steel structure Outside-plate stabilizing test device for multifunctional in Fig. 1.
Fig. 4 be the arch steel structure Outside-plate stabilizing test device for multifunctional in Fig. 1 the two-way hinge of loading frame, U-shaped and
The structural schematic diagram of the combined another angle of rigidity beam.
Fig. 5 is that the arch steel structure Outside-plate stabilizing test device for multifunctional in Fig. 1 carries out outside plane arch steel structure
Structural schematic diagram when steady testing.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Shown in please referring to Fig.1 to Fig.4, arch steel structure Outside-plate stabilizing test device for multifunctional provided by the invention is used for
The Out-of-plane Stability of arch steel structure 200 is tested.The arch steel structure Outside-plate stabilizing test device for multifunctional
Including loading frame 1, load hemisphere 2, load connector 3, the two-way hinge 4 of U-shaped, buckstay 5, ground beam 201 and jack 6.It is described
One end of load hemisphere 2 is connected to by the load connector 3 on the arch steel structure 200, and the other end is connected to described
The upper end of loading frame 1.One end of the two-way hinge of the U-shaped 4 is connect with the lower end of the loading frame 1, the other end with it is described just
Property 5 one end of beam upper surface connection.The jack 6 acts on the centre position of the upper surface of the buckstay 5, the rigidity
The other end opposite with the two-way hinge 4 of the U-shaped of beam 5 forms pivoting support with ground.The both ends of the arch steel structure 200 and institute
Ground beam 201 is stated to be connected.
The loading frame 1 is rectangle structure comprising the two opposite lower girder steels 10 in horizontal parallel setting and upper steel
Beam 11, and two pull rods 12 being connect respectively with the upper girder steel 10 and the lower girder steel 11.Described two pull rods 12 are in phase
To being arranged in parallel and being respectively perpendicular to the upper girder steel 10 and the lower girder steel 11.The lower girder steel 10 is two-way by the U-shaped
Hinge 4 is connect with the rigidity beam 5.The upper girder steel 11 is connected to described by the load hemisphere 2 and the load connector 3
On arch steel structure 200.In the present embodiment, the tie point in the upper girder steel 11 with the load hemisphere 2 is hemispherical, from
And the load(ing) point that the loading frame 1 is contacted with the arch steel structure 200 is hemispherical, so that the load(ing) point can be from
By rotating.
The load hemisphere 2 is connected between the loading frame 1 and the load connector 3, shape be it is hemispherical,
To allow the loading frame 1 and the load(ing) point of the arch steel structure 200 to be freely rotated.
The loading frame 1 is connected to the arch steel structure by the load connector 3 by the load hemisphere 2
On 200.The load connector 3 includes cushion block 30 and weighted platform 31.The upper end of the cushion block 30 connects with the load hemisphere 2
It connects, the lower end of the cushion block 30 is carried on the weighted platform 31.The lower end of the weighted platform 31 is carried on the arch
On steel construction 200.
The two-way hinge of the U-shaped 4 is connected between the lower girder steel 10 and the rigidity beam 5.The two-way hinge of the U-shaped 4 includes
The U-shaped clamping member 40 of two make-ups and two correspondences of U-shaped clamping members 40 are fixed to the lower girder steel 10 and the rigidity respectively
Multiple nut (not labeled) on beam 5.In the present embodiment, it is lateral to ensure that the loading frame occurs for the U-shaped clamping member 40
Not by the constraint of the buckstay 5 when deformation.
The buckstay 5 is located at 200 bottom of the arch steel structure and is connect with a U-shaped clamping member 40.It is described very heavy
Top 6 is acting downwardly on the centre position of the buckstay to apply load, so that the load(ing) point of the arch steel structure 200
On load be the jack 6 apply load half.
It please refers to shown in Fig. 5, when carrying out Outside-plate stabilizing test to the arch steel structure 200, by described very heavy
Top 6 applies load external force F in the active force on the buckstay 5, born on the load(ing) point of the arch steel structure 200 at this time
The half of directed force F, i.e. F/2 caused by the load applied for the jack 6.When the arch steel structure 200 occurs to put down
When out-of-plane deformation, directed force F/2 caused by the load of the load(ing) point not keep vertical direction, directed force F/2
It is directed toward the tie point between the U-shaped clamping member 40 and the buckstay 5 in direction.
The arch steel structure Outside-plate stabilizing test device for multifunctional that embodiment of the present invention provides, by by arch steel knot
Load(ing) point on structure is connected loading frame with the buckstay of bottom using the U-shaped clamping member of two make-ups, and by the load
The load(ing) point contacted with the arch steel structure in frame is designed as hemispherical, using Indirect Loaded method to the arch steel structure
Outside-plate stabilizing bearing capacity load test is carried out, not only test is accurate, reliable, but also can enable tested arch steel structure
Free that plane outer displacement, torsional deflection, plane displacement and rotation in surface occurs, true reflection arch steel structure is put down
Buckling behaviors outside face.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (6)
1. a kind of arch steel structure Outside-plate stabilizing test device for multifunctional, it is characterised in that：Outside the arch steel structure plane
Stability bearing capacity experimental rig includes loading frame, load hemisphere, the two-way hinge of U-shaped, buckstay, ground beam and jack；It is described to add
The one end for carrying hemisphere acts on the arch steel structure, and the other end is connected on the loading frame, the two-way hinge of U-shaped
One end is connect with the lower end of the loading frame, and the other end is connect with one end of the buckstay, and the jack acts on institute
The centre position of the upper surface of buckstay is stated, the buckstay other end opposite with the two-way hinge of the U-shaped is formed with ground and cut with scissors
Connect bearing；The both ends of the arch steel structure are connected with the ground beam.
2. arch steel structure Outside-plate stabilizing test device for multifunctional as described in claim 1, which is characterized in that the arch
Steel construction Outside-plate stabilizing test device for multifunctional further includes load connector, and the load connector passes through the load hemisphere
The loading frame is connected on the arch steel structure；The load connector includes cushion block and weighted platform；The pad
The upper end of block is connect with the load hemisphere, and the lower end of the cushion block is carried on the weighted platform, and the weighted platform
Lower end be carried on the arch steel structure.
3. arch steel structure Outside-plate stabilizing test device for multifunctional as claimed in claim 2, which is characterized in that the load
Frame is rectangle structure comprising two opposite lower girder steels and upper girder steel in horizontal parallel setting, and respectively with it is described on
Girder steel and two pull rods of lower girder steel connection；Described two pull rods are in be arranged in parallel relatively and be respectively perpendicular to the upper steel
Beam and the lower girder steel；Ribs is provided in the lower girder steel to increase the intensity of the lower girder steel；The lower girder steel passes through
The two-way hinge of U-shaped is connect with the buckstay, and the upper girder steel is connected by the load hemisphere and the load connector
On to the arch steel structure.
4. arch steel structure Outside-plate stabilizing test device for multifunctional as claimed in claim 3, which is characterized in that the upper steel
The tie point of beam and the load hemisphere is hemispherical, and the load(ing) point that the loading frame is contacted with the arch steel structure is half
Spherical shape, the load(ing) point can be freely rotated.
5. arch steel structure Outside-plate stabilizing test device for multifunctional as claimed in claim 4, which is characterized in that the U-shaped
Two-way hinge includes the U-shaped clamping member of two make-ups and two U-shaped clamping members correspondences is fixed to the lower girder steel and described respectively
Multiple nuts on buckstay；The U-shaped clamping member ensures when lateral deformation occurs for the loading frame not by the buckstay
Constraint.
6. arch steel structure Outside-plate stabilizing test device for multifunctional as claimed in claim 5, which is characterized in that the rigidity
Beam one end with the U-shaped is two-way is hinged；It is carried when the jack is acting downwardly on the centre position of the buckstay with applying
When lotus, the load on the load(ing) point of the arch steel structure is the half for the load that the jack applies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610188896.XA CN105716894B (en) | 2016-03-29 | 2016-03-29 | Device for testing out-of-plane stable bearing capacity of arched steel structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610188896.XA CN105716894B (en) | 2016-03-29 | 2016-03-29 | Device for testing out-of-plane stable bearing capacity of arched steel structure |
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| CN105716894A CN105716894A (en) | 2016-06-29 |
| CN105716894B true CN105716894B (en) | 2018-08-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332962B (en) * | 2018-03-28 | 2023-06-06 | 广州大学 | Experimental loading device and method for parallel assembly double-arch out-of-plane instability |
| CN108627400B (en) * | 2018-04-17 | 2020-12-25 | 国网山西省电力公司电力科学研究院 | Device and method for testing stable bearing capacity of angle steel crossed inclined material |
| CN110441083A (en) * | 2019-08-21 | 2019-11-12 | 上海市机械施工集团有限公司 | A kind of domes mechanical test loading device and loading method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348570Y (en) * | 2009-02-06 | 2009-11-18 | 南京工程学院 | Self-balanced static-load testing device for building structure |
| CN202092867U (en) * | 2011-06-13 | 2011-12-28 | 长春轨道客车股份有限公司 | Stainless steel car body steel structure static strength test end part loading tool |
| CN102401765A (en) * | 2011-11-24 | 2012-04-04 | 清华大学 | Lateral restraining device for load test of steel-structure compression member |
| CN205642861U (en) * | 2016-03-29 | 2016-10-12 | 中建钢构有限公司 | Device for testing out-of-plane stable bearing capacity of arched steel structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100402546B1 (en) * | 2001-05-25 | 2003-10-17 | 주식회사 한진중공업 | A method to remove steel post inducing local buckling after completion of bridge erection to use it |
| JP3854550B2 (en) * | 2002-08-02 | 2006-12-06 | 三菱重工業株式会社 | Reinforcement structure, reinforcement structure evaluation system, and reinforcement method |
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- 2016-03-29 CN CN201610188896.XA patent/CN105716894B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348570Y (en) * | 2009-02-06 | 2009-11-18 | 南京工程学院 | Self-balanced static-load testing device for building structure |
| CN202092867U (en) * | 2011-06-13 | 2011-12-28 | 长春轨道客车股份有限公司 | Stainless steel car body steel structure static strength test end part loading tool |
| CN102401765A (en) * | 2011-11-24 | 2012-04-04 | 清华大学 | Lateral restraining device for load test of steel-structure compression member |
| CN205642861U (en) * | 2016-03-29 | 2016-10-12 | 中建钢构有限公司 | Device for testing out-of-plane stable bearing capacity of arched steel structure |
Non-Patent Citations (2)
| Title |
|---|
| 倒三角截面空间桁架拱平面外弹塑性稳定设计方法研究;赵思远 等;《工程力学》;20140930;第31卷(第9期);71-80 * |
| 张弦梁平面外弹性稳定性能研究;赵思远 等;《工程力学》;20131231;第30卷(第12期);49-56 * |
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