CN206339421U - The test mould and its test system of a kind of concrete component axle center tensile test - Google Patents
The test mould and its test system of a kind of concrete component axle center tensile test Download PDFInfo
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- CN206339421U CN206339421U CN201621446929.8U CN201621446929U CN206339421U CN 206339421 U CN206339421 U CN 206339421U CN 201621446929 U CN201621446929 U CN 201621446929U CN 206339421 U CN206339421 U CN 206339421U
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Abstract
The test mould and its test system of a kind of concrete component axle center tensile test, the test mould include end template and the side template being vertically connected on end template；The side template is the variable cross-section section of uiform section section and both sides including middle part of symmetrical frame structure, its cavity enclosed, the cross section of wherein uiform section section is rectangle, the cross section of variable cross-section section is continuous laterally elongated until consistent with end template width by uiform section section for the long side of rectangle and rectangle, and correspondence is provided with manhole on the center of the upper and lower ends plate of the side template.The utility model is simple in construction, and combination is convenient, easy to operate, ensures power transmission effect by pre-buried reinforcing bar mode, while the problem of solving concrete component centering during experiment, has been effectively ensured test effect, it is ensured that experiment accuracy；Test mould of the present utility model is detachable, facilitates later stage form removal, is easy to recycling.It can be widely applied to concrete component tension test.
Description
Technical field
The utility model is related to construction material testing equipment, particularly a kind of concrete test mould and its test system.
Background technology
Ultra-high performance concrete (Ultra High Performance Concrete, hereinafter referred to as UHPC) be after it is high-strength,
After high performance concrete, that develops a kind of possesses the new of superhigh intensity, high-durability, high tenacity and good volume stability
Type cement-based material.According to dense packing principle, coarse aggregate is eliminated so that intrinsic silicon compact structure, defect are few, with very
High compression strength and durability；Overcome the fragility of high-strength concrete material further through admixture steel fibre, significantly improve material
The tensile property of material, improves the toughness of material.The country replaces normal concrete or high-strength coagulation in Practical Project with UHPC
Soil, can not only reduce structure cross-section dimensions and quantity of reinforcement, improve the durability and security of structure, and can be devised by
The new structure that normal concrete (including high-strength concrete) can not be designed, UHPC is expanded significantly with its excellent mechanical property
The application field of concrete material, there is in the engineerings such as building, oil, nuclear power, municipal administration, ocean and military installations extensive
Application prospect.
Research about UHPC both at home and abroad focuses mostly in terms of material mixture ratio optimization and basic mechanical performance, to its structure
The research of every basic mechanical performance of component, design theory and method for designing is relatively fewer.It is most basic in concrete structure
Intensity constitutive relation is concrete in uniaxial tension and uniaxial compression, and its stress state is complicated and changeable.The tensile strength one of concrete
As only compression strength 1/15~1/10 or so, be the weak link in material, therefore, study concrete tensile property
Formation and extension for crack in its failure mechanism, destructive process etc. are all significant.
Concrete axle center tensile test can determine its tension stress and be drawn with the relation of strain, axial tensile strength and the limit
Value is stretched, therefore, axle center tensile test can accurately reflect the tensile property of concrete component, be research concrete axle center tension
A kind of important tests method of performance.But at present, there is no the recognized standard test method, mainly existing concrete also both at home and abroad
Axle center tensile test exists following difficult and not enough：
First, the initial centering of test specimen is difficult.Composition skewness, adds the small making chi of test specimen inside concrete sample
Very little error, and it is difficult to ensure that testing machine pulling force effect line is consistent with test specimen centroidal axis in test operation, these are resulted in
The initial centering of test specimen is very difficult；
Second, success of the test rate is relatively low.The place of stress concentration, and examination are frequently appeared in mainly due to test specimen fracture position
The installation of part is difficult with clamping, needs in the pre-buried stiffener of test piece end or local major part is made, and has both added test specimen making
Difficulty, while also have impact on success of the test rate to a certain extent；
3rd, the insufficient rigidity of ordinary test machine.Testing machine stores very big elastic deformation energy in loading procedure, when
Test specimen reaches after peak load that testing machine causes test specimen rapidly to destroy, when test specimen becomes because load is reduced and releases energy quickly
Shape reach capacity strain when, it is difficult to measure stress-strain curve descending branch.
Utility model content
The purpose of this utility model is to provide the test mould and its test body of a kind of concrete component axle center tensile test
System, solve to be difficult to the technical problem of centering during the experiment of concrete component axial tension.
To achieve the above object, the utility model is adopted the following technical scheme that：
A kind of test mould of concrete component axle center tensile test, including end template and be vertically connected on end template
Side template.
The side template is the change of uiform section section and both sides including middle part of symmetrical frame structure, its cavity enclosed
The cross section of section, wherein uiform section section is rectangle, the cross section of variable cross-section section for rectangle and rectangle long side by uiform section
Section is continuous laterally elongated until consistent with end template width.
Correspondence is provided with manhole on the center of the upper and lower ends plate of the side template.
The side template is formed by two structure identical one side formwork docking, and described two one side formworks are symmetrically set
Put and be connected by connecting plate with end template.
The one side formwork includes and the vertically disposed unilateral plate of end template and is vertically connected on single side plate interior sides, up and down two
The end plate of end.
The shape of the unilateral plate is agreed with cavity profile, including upsloping segment, vertical section and oblique section.
The connecting plate is vertically welded in the outside of unilateral plate, is connected by connector with end template.
Correspondence is provided with the connecting hole through connector on connecting plate.
The semi-circular groove docking that the end plate on semi-circular groove, two side templates is offered in the middle part of the outer end of the end plate is in circle
Shape.
The circular groove location of the end plate upper half is outwards vertically connected with docking arc plate.
The cross section of the docking arc plate is semicircle, circular in cross-section after two docking arc plate docking.
The end plate upper half circular trough both sides, Symmetrical vertical are to being externally provided with docking otic placode.
Connected after the docking to ear connecting plate by connector.
A kind of test system of the test mould of concrete component axle center tensile test described in application, including experiment mould
Tool, by two manholes are penetrated in side template above and below test mould reinforcing bar and it is cast in side template and end template is enclosed respectively
Cavity in concrete component.
The length for of length no more than side template variable cross-section section that the reinforcing bar is penetrated in side template.
The utility model has the characteristics that and beneficial effect compared with prior art：
The utility model devises a kind of tensile test mould of concrete component, the middle part shape of cross section of test mould
For rectangle, both sides are then that the through hole through reinforcing bar is provided with the variable cross-section section of slow transition, test mould location mid-shaft：Experiment
Before, reinforcing bar is penetrated from through hole, directly can in test mould casting concrete, concrete component hardening solidification after, tear open
Mould takes out maintenance, and tensile test can be carried out after component reaches specified curing condition；When being tested, by tensile test equipment
Fixture correspondence be clamped in above and below on two reinforcing bars, start force, along the uniform axial tension in component length direction, make the horizontal stroke of component
Uniform tension is distributed on section.
The utility model is simple in construction, and combination is convenient, easy to operate, and power transmission effect is ensured by pre-buried reinforcing bar mode,
When solving experiment simultaneously the problem of concrete component centering, test effect is effectively ensured, it is ensured that experiment accuracy；This practicality
New test mould is detachable, facilitates later stage form removal, is easy to recycling.
The utility model can be widely applied to concrete component tension test.
Brief description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is main structure diagram of the present utility model.
Fig. 2 is side structure schematic view of the present utility model.
Fig. 3 is overlooking the structure diagram of the present utility model.
Fig. 4 is the 1-1 cross-sectional views in Fig. 1.
Fig. 5 is decomposition texture schematic diagram of the present utility model.
Fig. 6 is the main structure diagram for the concrete component that the utility model makes.
Fig. 7 is the side structure schematic view for the concrete component that the utility model makes.
Reference：The unilateral plate of 1- end templates, 2- one side formworks, 3- connecting plates, 4-, 5- end plates, 6- reinforcing bars,
7- docking arcs plate, 8- are to ear connecting plate, 9- concrete components, 10- weld seams.
Embodiment
Embodiment is shown in Figure 1, the test mould of this concrete component axle center tensile test, including the He of end template 1
It is vertically connected on the side template on end template 1；The side template is symmetrical frame structure, its cavity enclosed includes middle part
Uiform section section and both sides variable cross-section section, wherein uiform section section cross section be rectangle, variable cross-section section cross section for rectangle,
And the long side of rectangle is continuous laterally elongated until consistent with end template width by uiform section section；The upper and lower ends of the side template
Correspondence is provided with manhole, this example on the center of plate, and variable cross-section section is consistent with the length of uiform section section, be 100mm,
Thickness is 100mm, and wherein the variable cross-section section outside length of side is consistent with baseplate width, be 150mm, the inner side length of side and uiform section section width
Unanimously, it is 50mm.
Shown in Figure 5, the side template is docked by two structure identical one side formworks 2 and formed, described two
One side formwork 2 is symmetrical arranged and is connected by connecting plate 3 with end template 1.
Shown in Figure 5, the one side formwork 2 includes and the vertically disposed unilateral plate 4 of end template and is vertically connected on list
Side plate interior sides, the end plate 5 in upper and lower ends portion；The shape of the unilateral plate 4 is agreed with cavity profile, including upsloping segment, vertical section
With oblique section；The connecting plate 3 is vertically welded in the outside of unilateral plate 4, is connected by connector with end template；It is right on connecting plate
The connecting hole through connector should be provided with.
It is shown in Figure 3, half of the end plate 5 on semi-circular groove, two side templates is offered in the middle part of the outer end of the end plate 5
Circular trough docking is rounded；The circular groove location of the upper half of end plate 5 is outwards vertically connected with docking arc plate 7, facilitates reinforcing bar 6 to consolidate
It is fixed；The cross section of the docking arc plate 7 is semicircle, circular in cross-section after two docking arc plate docking.
It is shown in Figure 2, the upper half circular trough both sides of end plate 5, Symmetrical vertical to be externally provided with docking otic placode 8；It is described right
Ear connecting plate 8 is connected after docking by connector.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, between connecting plate and unilateral plate, between unilateral plate and end plate, end plate
With docking arc plate and to, by being welded and fixed, filled black is weld seam 10 in figure between ear connecting plate.
Referring to shown in Fig. 6, Fig. 7, a kind of experiment of the test mould of the concrete component axle center tensile test described in application
System, including test mould, the reinforcing bar 6 that is penetrated respectively by two manholes above and below test mould in side template and it is cast in side form
Concrete component 9 in the cavity that plate and end template are enclosed；Of length no more than side template that the reinforcing bar 6 is penetrated in side template
The length of variable cross-section section；After concrete component hardening solidification, test mould is removed, concrete component takes out and conserved, and treats
Component reached and can be tested after specified curing condition, during experiment, the fixture of tensile test equipment is corresponded to above and below being clamped in
On two reinforcing bars, start force, along the uniform axial tension in component length direction, make to be distributed uniform drawing on element cross-section
Stress.
In order to coordinate fixture to use, the end of reinforcing bar 6 can be designed to it is variously-shaped, it is end reinforced to be bent into this example
Annular is connected with facilitating with fixture.
Claims (10)
1. a kind of test mould of concrete component axle center tensile test, it is characterised in that：Including end template（1）With vertical connection
In end template（1）On side template；
The side template is the variable cross-section of uiform section section and both sides including middle part of symmetrical frame structure, its cavity enclosed
The cross section of section, wherein uiform section section is rectangle, the cross section of variable cross-section section for rectangle and rectangle long side from uiform section section to
Outside is continuous elongated until consistent with end template width；
Correspondence is provided with manhole on the center of the upper and lower ends plate of the side template.
2. the test mould of concrete component axle center according to claim 1 tensile test, it is characterised in that：The side form
Plate is by two structure identical one side formworks（2）Docking, described two one side formworks（2）It is symmetrical arranged and passes through
Connecting plate（3）With end template（1）Connection.
3. the test mould of concrete component axle center according to claim 2 tensile test, it is characterised in that：The one side
Template（2）Including with the vertically disposed unilateral plate of end template（4）Be vertically connected on single side plate interior sides, upper and lower ends portion end plate
（5）.
4. the test mould of concrete component axle center according to claim 3 tensile test, it is characterised in that：The one side
Plate（4）Shape agree with cavity profile, including upsloping segment, vertical section and oblique section.
5. the test mould of concrete component axle center according to claim 4 tensile test, it is characterised in that：The connection
Plate（3）It is vertically welded in unilateral plate（4）Outside, be connected with end template by connector；
Correspondence is provided with the connecting hole through connector on connecting plate.
6. the test mould of concrete component axle center according to claim 3 tensile test, it is characterised in that：The end plate
（5）Outer end in the middle part of offer end plate on semi-circular groove, two side templates（5）Semi-circular groove docking it is rounded.
7. the test mould of concrete component axle center according to claim 6 tensile test, it is characterised in that：The end plate
（5）Upper half circle groove location is outwards vertically connected with docking arc plate（7）；
The cross section of the docking arc plate 7 is semicircle, circular in cross-section after two docking arc plate docking.
8. the test mould of concrete component axle center according to claim 6 tensile test, it is characterised in that：The end plate
（5）Upper half circular trough both sides, Symmetrical vertical are to being externally provided with docking otic placode（8）；
It is described to ear connecting plate（8）Connected after docking by connector.
9. a kind of examination of the test mould of the concrete component axle center tensile test described in application claim 1 to 8 any one
Test system, it is characterised in that：Including test mould, respectively by two manholes are penetrated in side template above and below test mould reinforcing bar
（6）With the concrete component being cast in the cavity that side template and end template are enclosed（9）.
10. test system according to claim 9, it is characterised in that：The reinforcing bar（6）The length penetrated in side template is not
More than the length of side template variable cross-section section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446929.8U CN206339421U (en) | 2016-12-27 | 2016-12-27 | The test mould and its test system of a kind of concrete component axle center tensile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446929.8U CN206339421U (en) | 2016-12-27 | 2016-12-27 | The test mould and its test system of a kind of concrete component axle center tensile test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206339421U true CN206339421U (en) | 2017-07-18 |
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ID=59304410
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621446929.8U Active CN206339421U (en) | 2016-12-27 | 2016-12-27 | The test mould and its test system of a kind of concrete component axle center tensile test |
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| Country | Link |
|---|---|
| CN (1) | CN206339421U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907267A (en) * | 2019-12-27 | 2020-03-24 | 上海建工集团股份有限公司 | Test piece and method for testing tensile strength of common concrete by using UHPC (ultra high Performance Poly carbonate) |
| CN113588423A (en) * | 2021-08-30 | 2021-11-02 | 石家庄铁道大学 | Soil body stretching and compressing coupling test device and soil body stretching and compressing coupling test method |
| CN114559532A (en) * | 2022-03-07 | 2022-05-31 | 北京市市政工程研究院 | Preparation method of concrete center crack |
| CN115446972A (en) * | 2022-08-11 | 2022-12-09 | 河海大学 | Concrete axial tension test piece centering die and pouring method |
-
2016
- 2016-12-27 CN CN201621446929.8U patent/CN206339421U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907267A (en) * | 2019-12-27 | 2020-03-24 | 上海建工集团股份有限公司 | Test piece and method for testing tensile strength of common concrete by using UHPC (ultra high Performance Poly carbonate) |
| CN113588423A (en) * | 2021-08-30 | 2021-11-02 | 石家庄铁道大学 | Soil body stretching and compressing coupling test device and soil body stretching and compressing coupling test method |
| CN113588423B (en) * | 2021-08-30 | 2023-08-15 | 石家庄铁道大学 | Soil body stretching compression coupling test device and soil body stretching compression coupling test method |
| CN114559532A (en) * | 2022-03-07 | 2022-05-31 | 北京市市政工程研究院 | Preparation method of concrete center crack |
| CN115446972A (en) * | 2022-08-11 | 2022-12-09 | 河海大学 | Concrete axial tension test piece centering die and pouring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170908 Address after: 100037 Beijing, Xicheng District, one hundred million Zhuang Street, No. 3 Co-patentee after: Beijing University of Civil Engineering and Architecture Patentee after: Municipal Engineering Inst. of Beijing Address before: 100037 Beijing, Xicheng District, one hundred million Zhuang Street, No. 3 Patentee before: Municipal Engineering Inst. of Beijing |
|
| TR01 | Transfer of patent right |