CN207197916U - A kind of portable fixed end constrained test pedestal - Google Patents
A kind of portable fixed end constrained test pedestal Download PDFInfo
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- CN207197916U CN207197916U CN201721127276.1U CN201721127276U CN207197916U CN 207197916 U CN207197916 U CN 207197916U CN 201721127276 U CN201721127276 U CN 201721127276U CN 207197916 U CN207197916 U CN 207197916U
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- pedestal
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- top plate
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Abstract
The utility model discloses a kind of portable fixed end constrained test pedestal, including the pedestal top plate for placing research object, with the pedestal bottom plate being connected by multiple diaphragm plates with pedestal top plate, pedestal bottom plate is anchored by fastener and is connected with test site ground, strengthens integrally-built stability；The side end of pedestal top plate is provided with the end plate for applying average moving constraint to research object water during experiment；Also include being covered in research object surface, the cover plate of rotational restraint is produced to research object, the cover plate is mutually fixed by bolt through research object with pedestal top plate.The utility model pedestal is easy to remove to arrive suitable test site, suitable for most of places, solves place restricted problem caused by fixed fixed end constrained procedure；Conducted and designed by reasonable internal force, shearing and moment of flexure are undertaken by different parts, so as to reduce the requirement to part bearing capacity, reduce cost；Using steel construction, most of extreme loads can be born, are hardly damaged.
Description
Technical field
Structural Engineering is the utility model is related to, more particularly to a kind of portable fixed end constrained test pedestal.
Background technology
Structural test, analysis of experiments generally is carried out just for partial structurtes or component (hereinafter referred to as research object), because
The simulation of this experiment boundary condition is the important component of experiment.Fixed end is constrained as a kind of common experiment boundary condition shape
Formula, represent to use restraint to the translation displacements and rotation displacement of research object.The boundary condition requires the outside axle that can be provided
The rigidity of research object in itself is much larger than to, shearing resistance, bending rigidity.In existing experiment, it is larger that size is often poured in advance
Grade beam, then research object is anchored on grade beam by fastener, realizes that fixed end constrains using the rigidity of grade beam.The grade beam and
Ground, which is cast as one, arbitrarily to move, referred to as fixed fixed end constraint.Fastener in above-mentioned connected mode, which both undertook, to be cut
Power, moment of flexure is also taken on, it is higher to the requirement for bearing capacity of fastener under composite force.Therefore not only need to choose strength and stiffness
Larger material, fastener quantity are also required to accordingly increase by requirement for bearing capacity, can cause to test the problems such as financial cost rises.
Such method is suitable only for carrying out routine test in fixation test place simultaneously, is limited for research object size more than place
Extreme load (such as blast, fire load), the concrete ground beam make, be not suitable for applying in existing test site may be damaged
Situations such as badly but needing repeated loading, above-mentioned fixed fixed end constrained procedure is just difficult to be applicable.
Utility model content
The purpose of this utility model is to change the boundary condition of partial structurtes or component in structural test, there is provided Yi Zhongyi
Dynamic formula fixed end constrained test pedestal, this testing bed, testing stand reduce pedestal as far as possible on the premise of it can provide effective boundary constraint
Own dimensions, beneficial to transport.
Technical scheme is used by the utility model：A kind of portable fixed end constrained test pedestal, including for placing
The pedestal top plate of research object, and the pedestal bottom plate being connected by multiple diaphragm plates with the pedestal top plate, the pedestal top
The side end of plate is provided with the end plate for applying average moving constraint to research object water during experiment；Also include being covered in research
Subject surface, the cover plate that rotational restraint is produced to research object, the cover plate pass through research object and the pedestal by bolt
Top plate is mutually fixed, and applies pretightning force to research object.
The back side of the end plate is provided with multiple tracks ribbed stiffener.
Multiple tracks stiffener is vertically arranged between the pedestal top plate and the pedestal bottom plate.
The cover plate is arranged in many places of research object, improves rotational restraint of the cover plate to research object.
The pedestal bottom plate is anchored by anchor screw bolt and nut with test site.
The beneficial effects of the utility model are：A kind of portable fixed end constrained test pedestal of the utility model, it is easy to remove
To suitable test site, and it is applied to most of places.Research object is fixed on the utility model testing bed, testing stand, utilized
Pedestal is realized carries out fixed end constraint to research object, solves place restricted problem caused by fixed fixed end constrained procedure.
This testing bed, testing stand is conducted by reasonable internal force to be designed, and shearing and moment of flexure are undertaken by different parts：End plate undertakes level and cut
Power, bolt undertake moment of flexure, so as to reduce the requirement to part bearing capacity, reduce cost.In addition, this testing bed, testing stand uses steel knot
Structure, most of extreme loads can be born under reasonable section design, are hardly damaged.
Brief description of the drawings
Fig. 1 is the utility model movable type fixed end constrained test pedestal positive structure diagram.
Fig. 2 is the utility model movable type fixed end constrained test pedestal overlooking the structure diagram.
Fig. 3 is the schematic elevation view that the utility model movable type fixed end constrained test pedestal installs research object.
Fig. 4 is Fig. 1 C-C sectional views.
Fig. 5 is cover plate schematic diagram.
Accompanying drawing marks：1. the end plate of pedestal top plate 2.
3. the diaphragm plate of ribbed stiffener 4.
5. the pedestal bottom plate of stiffener 6.
7. the nut of crab-bolt 8.
9. the cover plate of bottom plate preset hole 10.
11. the bolt of cover plate preset hole 12.
13. the top plate preset hole of research object 14.
15. hole
Embodiment
The utility model will be further described below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1 to Fig. 5, a kind of portable fixed end constrained test pedestal, including for placing research object 13
Pedestal top plate 1, and the pedestal bottom plate 6 being connected by multiple diaphragm plates 4 with the pedestal top plate 1, the pedestal bottom plate 6 pass through
Crab-bolt 7 and nut 8 are anchored with test site；Top plate is respectively kept with the pedestal top plate 1 and the pedestal bottom plate 6 to preset
Hole 14 and bottom plate preset hole 9.The side end of the pedestal top plate 1 is provided with during experiment to apply the water of research object 13 and put down
The end plate 2 of translation constraint.
A kind of portable fixed end constrained test pedestal of the utility model is also including being covered in the surface of research object 13, to research
Object 13 produces the cover plate 10 of rotational restraint, and the cover plate 10 passes through research object 13 and the pedestal top plate 1 by bolt 12
It is mutually fixed, pretightning force is applied to research object 13.The cover plate 10 is arranged in many places of research object 13, improves the cover plate 10
To the rotational restraint of research object 13.The cover plate 10 leaves cover plate preset hole 11.
To improve the rigidity of pedestal itself, so as to ensure constraint reliability of the pedestal to research object 13, the end plate 2
The back side is provided with multiple tracks ribbed stiffener 3, and multiple tracks stiffener is vertically arranged between the pedestal top plate 1 and the pedestal bottom plate 6
5, the stiffener 5 leaves the hole 15 of certain size, beneficial to the installation of the bolt 12 of pedestal top plate 1.
To ensure the intensity of pedestal itself, it is not destroyed in extreme load, the utility model pedestal uses steel construction.
For more hard test site, it can shift to an earlier date and be punched on test site, by the passing through of pedestal bottom plate 6
Crab-bolt is learned to be anchored with test site.
A kind of portable fixed end constrained test pedestal of the utility model, research object 13 is placed on pedestal top plate 1, ground
Study carefully the surface of object 13 covering cover plate 10, it is pre- that bolt 12 is sequentially passed through into cover plate preset hole 11, research object 13, top plate from top to bottom
Apertured 14, a certain degree of pretightning force is applied to research object 13, research object 13 is clamped using pretightning force, it is reliable so as to produce
Moment of flexure constraint.Meanwhile end plate 2 is close in the side of research object 13, apply the constraint of horizontal direction using end plate 2, also
It is to apply the horizontal translation constraint of research object 13 (during experiment, lateral load direction is from the non-end plate side of research object 13
Point to end plate side)；The vertical axle power of research object 13 can be delivered to pedestal by pedestal top plate 1；Pedestal utilizes different parts
Internal force is conducted, effectively simplifies the stress form of single part, the requirement to single part bearing capacity can be reduced.Pedestal top plate
1st, multiple tracks stiffener 5, ribbed stiffener 3 is respectively welded in end plate 2, the rigidity of pedestal itself is improved, so as to ensure pedestal to research object
13 constraint reliability.
Although preferred embodiment of the present utility model is described above in conjunction with accompanying drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under enlightenment of the present utility model
Under ambit, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (5)
- A kind of 1. portable fixed end constrained test pedestal, it is characterised in that including the pedestal top plate for placing research object, and The pedestal bottom plate being connected by multiple diaphragm plates with the pedestal top plate, the side end of the pedestal top plate, which is provided with, is testing During apply the end plate of average moving constraint to research object water；Also include being covered in research object surface, research object is produced The cover plate of raw rotational restraint, the cover plate is mutually fixed by bolt through research object with the pedestal top plate, to research object Apply pretightning force.
- A kind of 2. portable fixed end constrained test pedestal according to claim 1, it is characterised in that the back side of the end plate It is provided with multiple tracks ribbed stiffener.
- A kind of 3. portable fixed end constrained test pedestal according to claim 1, it is characterised in that the pedestal top plate and Multiple tracks stiffener is vertically arranged between the pedestal bottom plate.
- 4. a kind of portable fixed end constrained test pedestal according to claim 1, it is characterised in that in the more of research object Place arranges the cover plate, improves rotational restraint of the cover plate to research object.
- 5. a kind of portable fixed end constrained test pedestal according to claim 1, it is characterised in that the pedestal bottom plate leads to Anchor screw bolt and nut is crossed to be anchored with test site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127276.1U CN207197916U (en) | 2017-09-04 | 2017-09-04 | A kind of portable fixed end constrained test pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127276.1U CN207197916U (en) | 2017-09-04 | 2017-09-04 | A kind of portable fixed end constrained test pedestal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197916U true CN207197916U (en) | 2018-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721127276.1U Active CN207197916U (en) | 2017-09-04 | 2017-09-04 | A kind of portable fixed end constrained test pedestal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207197916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141867A (en) * | 2020-02-17 | 2020-05-12 | 华侨大学 | Solid end force transmission device for concrete slab fire test under different boundary conditions |
-
2017
- 2017-09-04 CN CN201721127276.1U patent/CN207197916U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141867A (en) * | 2020-02-17 | 2020-05-12 | 华侨大学 | Solid end force transmission device for concrete slab fire test under different boundary conditions |
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