CN209559664U - A kind of concrete compression destruction overall process experiment loading unit - Google Patents
A kind of concrete compression destruction overall process experiment loading unit Download PDFInfo
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- CN209559664U CN209559664U CN201822083198.0U CN201822083198U CN209559664U CN 209559664 U CN209559664 U CN 209559664U CN 201822083198 U CN201822083198 U CN 201822083198U CN 209559664 U CN209559664 U CN 209559664U
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Abstract
The utility model discloses a kind of concrete compressions to destroy overall process experiment loading unit, including flexible deformation system, support system, test macro, test specimen are placed among the experiment loading unit；The support system includes support plate, high-strength bolt, high-strength nut and bottom plate, and every high-strength bolt is fixed on the supporting plate by two high-strength nuts, and the horizontal position of support plate is adjusted by high-strength nut；The flexible deformation system includes force transmission element, disk spring and sleeve, and the disk spring is placed in sleeve, and high-strength nut is embedded into sleeve inner, to fix butterfly spring and sleeve；The test macro includes the force snesor for measuring the load that test specimen is subject to and the displacement sensor of measurement test piece deformation amount.A kind of concrete compression of the utility model destroy the design of overall process experiment loading unit rationally, structure be simple and convenient to operate, environment-friendly high-efficiency, test result it is accurate, implementation easy to spread.
Description
Technical field
The utility model relates to a kind of concrete compressions to destroy overall process experiment loading unit, belong to civil engineering test inspection
Survey technology field.
Background technique
Concrete is the construction material that existing dosage in construction projects is maximum, purposes is most wide, uniaxial compression stress-strain
Full curve is that one of basic foundation of mechanics property analysis is carried out to concrete structure, especially to non-linear point of structural elements
It analyses, based on damage performance design, performance of collapsing and performance evaluation under extreme load effect etc..However, due to general
The Testing machine stiffness reasons such as not enough, when test, hardly result in concrete compression stress-strain curve.
To obtain concrete compression stress-strain curve, supplemental rigid component can be increased to improve loading system
Rigidity.For this reason, it is necessary to send out out, a kind of structure is simple and convenient to operate, is at low cost, high-efficient concrete compression destroys overall process
Experiment loading unit.
Utility model content
The purpose of this utility model be for deficiency existing for experimental condition, provide a kind of design rationally, structure is simple, grasps
Make convenient and can accurately test the experiment loading unit that concrete compression destroys the Complete Curve.
The technical solution adopted in the utility model is: a kind of concrete compression destruction overall process experiment loading unit, including
Flexible deformation system, support system, test macro, test specimen are placed among the experiment loading unit, the flexible deformation system
System loads compression with test specimen simultaneously；
The support system includes support plate, high-strength bolt, high-strength nut and bottom plate, and every high-strength bolt is by two height
Strong nut is fixed on the supporting plate, and the horizontal position of support plate is adjusted by high-strength nut, and high-strength bolt is mounted on bottom plate；
The flexible deformation system includes force transmission element, disk spring and sleeve, and the disk spring is placed in sleeve, high
Strong nut is embedded into sleeve inner, and to fix butterfly spring and sleeve, the force transmission element is contacted with sleeve lining and vertically transported
It is dynamic；
The test macro includes the force snesor for measuring the load that test specimen is subject to and the displacement of measurement test piece deformation amount
Sensor, the force snesor are installed below on bottom plate, and billet is equipped with above force snesor, examination is placed on billet
Part is connected with force transmission element above test specimen.
Preferably, the disk spring is that four groups of specifications are identical, it is respectively placed in four sleeves, high-strength bolt four
It is a.
Preferably, the diameter of section of the sleeve inner ring is greater than the diameter of section 1-2mm of the high-strength nut,
Preferably, rubber pad is placed in the test specimen upper surface and bottom surface, it is ensured that surface of test piece it is smooth.
Preferably, the combination of the disk spring is divided into overlapping, pairing, three kinds compound；Overlapping combines dish-shaped bullet
Spring is made of the disk spring of n equidirectional same specifications；Pairing dish-shaped-spring stack by the opposite same specification of m disk spring group
At；Complex composition disk spring is made of the overlapping dish-shaped-spring stack of the opposite same specification of i group.
Disk spring has the characteristics that big rigidity, small deformation in the flexible deformation system, can be according to different combinations
Mode adjusts rigidity and deformability, meets rigidity and Deformation Demands that concrete compression destroys overall process experiment loading unit.
The selection of disk spring uses following steps:
(1) concrete sample height L and sectional dimension A, concrete strength f are determinedc, concrete peak strain εc, concrete
Compressive ultimate strain εcu, testing machine maximum load load Pmax。
(2) according to the requirement of test specimen and the common stress of flexible deformation system, the range of flexible deformation system stiffness K is determined:
(3) according to the range of required stiffness K, suitable disc spring number and combining form are chosen.
The utility model has the advantages that
1, the utility model significantly improves the rigidity of loading system by increasing supplemental rigid element.
2, when being tested using the device of the utility model, force snesor can measure the practical load being subject to of test specimen, position
What displacement sensor measured is the practical distortion amount of test specimen, and by this experiment loading unit, it is broken can accurately to measure concrete compression
Bad the Complete Curve.
3, the utility model support system uses screw support, can adjust vertical direction spatial according to the height of sample dimensions, lead to
The horizontal position of nut adjustable support plate is crossed, guarantee test specimen registration and realizes the quick placement to test specimen.
4, the utility model flexible deformation system uses disk spring, can be chosen according to the rigidity requirement of different test specimens different
Combination adjusts the rigidity and deformability of loading system, the convenient concrete compression for being applied to varying strength and sectional dimension
Test specimen.
5, it is rectangular that the concrete compression of the utility model, which destroys overall process experiment loading unit and is applicable not only to section,
Test specimen, being also applied for section is circular test specimen.
7, all parts of utility model device repeated multiple times can utilize, and swift to operate efficient, precision is accurate.
8, to sum up, a kind of concrete compression of the utility model destroys overall process experiment loading unit and designs reasonable, structure
Be simple and convenient to operate, environment-friendly high-efficiency, test result it is accurate, implementation easy to spread.
Detailed description of the invention
Fig. 1 is the utility model disk spring overlapping combination schematic diagram；
Fig. 2 is the utility model disk spring pairing combination schematic diagram；
Fig. 3 is the utility model disk spring complex composition schematic diagram；
Fig. 4 is that a kind of concrete compression of the utility model destroys overall process experiment loading unit schematic diagram；
Fig. 5 is elastic anamorphotic system schematic diagram in the utility model；
Fig. 6 is force transmission element schematic diagram in the utility model；
Fig. 7 is force transmission element top view in the utility model；
Fig. 8 is support system schematic diagram in the utility model；
Fig. 9 is support system top view in the utility model；
Figure 10 is support plate schematic diagram in the utility model；
Figure 11 is that concrete compression destroys overall process load-deformation curve；
In figure: force transmission element 1, disk spring 2, sleeve 3, high-strength nut 4, support plate 5, high-strength bolt 6, rubber pad 7, test specimen
8, billet 9, force snesor 10, displacement sensor 11, bottom plate 12
Specific embodiment
The utility model is described further with attached drawing combined with specific embodiments below:
It includes bullet that the concrete compression of the present embodiment, which destroys overall process experiment loading unit, as shown in Fig. 4 to Figure 11, in Fig. 4
Property anamorphotic system, support system, test macro.Specifically by force transmission element 1, disk spring 2, sleeve 3, high-strength nut 4, support plate
5, high-strength bolt 6, rubber pad 7, test specimen 8, billet 9, force snesor 10, displacement sensor 11, the composition of bottom plate 12.
The flexible deformation system is made of force transmission element 1, disk spring 2, sleeve 3.The identical disk spring 2 of four groups of specifications
It is respectively placed in four sleeves 3.The diameter of section of 3 inner ring of sleeve is greater than the diameter of section 1-2mm of high-strength nut 4, high
Strong nut 4 is embedded into inside sleeve 3, to fix butterfly spring sleeve 3.Disk spring 2 is adjusted by choosing various combination mode
Rigidity and deformability, to guarantee that concrete compression destroys the rigidity requirement of overall process.
The support system is made of 5, four eight high-strength nuts 4, support plate high-strength bolts 6.Every high-strength bolt 6
It is fixed by two high-strength nuts 4, pass through the horizontal position of the adjustable support plate 5 of high-strength nut 4, it is ensured that flexible deformation system and
Test specimen 8 loads compression simultaneously.
The test macro is made of force snesor 10 and displacement sensor 11, and it is practical that force snesor 10 measures test specimen 8
The load being subject to, displacement sensor 11 measure the actual deflection of test specimen, guarantee that accurate measurement concrete compression destroys overall process
Curve.
The force transmission element 1 can be contacted appropriately with 3 inner wall of sleeve and vertically be moved.
The combination of the utility model disk spring is divided into overlapping, pairing, three kinds compound.Overlap dish-shaped-spring stack by
The disk spring of n equidirectional same specifications forms (see Fig. 1), and the bearing capacity of disk spring is the carrying of monolithic disk spring after combination
N times of power, deflection are identical as the deflection of monolithic disk spring；Pairing dish-shaped-spring stack by the opposite same specification of m dish
Shape spring forms (see Fig. 2), and the bearing capacity of disk spring is identical as monolithic disk spring bearing capacity after combination, and deflection is monolithic
I times of the deflection of disk spring；Complex composition disk spring is made of the overlapping dish-shaped-spring stack of the opposite same specification of i group
(see Fig. 3), the bearing capacity of disk spring is n times of monolithic disk spring bearing capacity after combination, and deflection is monolithic disk spring
M times of deflection.
The embodiments of the present invention is described in detail in conjunction with attached drawing above, but the utility model is not limited to institute
The embodiment of description.For those of ordinary skill in the art, in the range of the principles of the present invention and technical idea
It is interior, a variety of variations, modification, replacement and deformation are carried out to these embodiments and still fallen in the protection scope of the utility model.
Claims (5)
1. a kind of concrete compression destroys overall process experiment loading unit, it is characterised in that: including flexible deformation system, support system
System, test macro, test specimen are placed among the experiment loading unit；
The support system includes support plate, high-strength bolt, high-strength nut and bottom plate, and every high-strength bolt is by two high-strength spiral shells
Mother is fixed on the supporting plate, and the horizontal position of support plate is adjusted by high-strength nut, and high-strength bolt is mounted on bottom plate；
The flexible deformation system includes force transmission element, disk spring and sleeve, and the disk spring is placed in sleeve, high-strength spiral shell
Mother is embedded into sleeve inner, and to fix butterfly spring and sleeve, the force transmission element is contacted with sleeve lining and vertically moved；
The test macro includes the force snesor for measuring the load that test specimen is subject to and the displacement sensing of measurement test piece deformation amount
Device, the force snesor are installed below on bottom plate, and billet is equipped with above force snesor, is placed with test specimen on billet,
Force transmission element is connected with above test specimen.
2. a kind of concrete compression according to claim 1 destroys overall process experiment loading unit, it is characterised in that: described
Disk spring is that four groups of specifications are identical, is respectively placed in four sleeves, and high-strength bolt is four.
3. a kind of concrete compression according to claim 1 destroys overall process experiment loading unit, it is characterised in that: described
Sleeve inner ring diameter of section be greater than the high-strength nut diameter of section 1-2mm.
4. a kind of concrete compression according to claim 1 destroys overall process experiment loading unit, it is characterised in that: described
Test specimen upper surface and bottom surface place rubber pad.
5. a kind of concrete compression according to claim 1 destroys overall process experiment loading unit, it is characterised in that: described
The combination of disk spring is divided into overlapping, pairing, three kinds compound；Dish-shaped-spring stack is overlapped by a equidirectional same specification of n
Disk spring composition；Pairing dish-shaped-spring stack is made of the disk spring of m opposite same specifications；Be combined in complex disk spring by
The overlapping dish-shaped-spring stack of the opposite same specification of i group forms.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083198.0U CN209559664U (en) | 2018-12-12 | 2018-12-12 | A kind of concrete compression destruction overall process experiment loading unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083198.0U CN209559664U (en) | 2018-12-12 | 2018-12-12 | A kind of concrete compression destruction overall process experiment loading unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029802A (en) * | 2021-04-20 | 2021-06-25 | 中南大学 | High-precision testing method for equivalent elastic statics parameters of dot matrix material |
-
2018
- 2018-12-12 CN CN201822083198.0U patent/CN209559664U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029802A (en) * | 2021-04-20 | 2021-06-25 | 中南大学 | High-precision testing method for equivalent elastic statics parameters of dot matrix material |
| CN113029802B (en) * | 2021-04-20 | 2022-10-18 | 中南大学 | High-precision testing method for equivalent elastic statics parameters of dot matrix material |
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