CN211292329U

CN211292329U - Experimental auxiliary device of concrete compressive elasticity modulus

Info

Publication number: CN211292329U
Application number: CN201922495756.9U
Authority: CN
Inventors: 陈鹏; 谢建国; 刘辉; 王娟; 郜力君
Original assignee: Beijing Cccc Qiaoyu Technology Co ltd Shandong Branch
Current assignee: Beijing Cccc Qiaoyu Technology Co ltd Shandong Branch
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-18
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a experimental auxiliary device of concrete resistance to compression elasticity modulus, including supplementary body, supplementary body comprises two mutually perpendicular's auxiliary template, auxiliary template's cross section is rectangle, and is long: 300mm, width: 150mm, be equipped with first locating hole and second locating hole on supplementary template, first locating hole is 75mm apart from supplementary template's long limit, is 75mm apart from supplementary template left side minor face, is 225mm apart from supplementary template right side minor face, the second locating hole is 75mm apart from supplementary template's long limit, is 225mm apart from supplementary template left side minor face, is 75mm apart from supplementary template right side minor face. This auxiliary device labour saving and time saving just is difficult to appear measuring error, has further improved the accuracy of test result.

Description

Experimental auxiliary device of concrete compressive elasticity modulus

Technical Field

The utility model relates to a building technical field particularly, relates to an experimental auxiliary device of concrete resistance to compression elasticity modulus.

Background

The compression elastic modulus is an important mechanical property of concrete, reflects the relationship between the stress borne by the concrete and the generated strain, and is one of the necessary parameters for calculating the deformation, crack development and temperature stress of a concrete structure. At present, due to the use of a large amount of additives, the early strength of the concrete is increased rapidly, and whether the elastic modulus of the concrete reaches the corresponding standard or not is a concern and worry of engineers. The experiment of the elastic modulus of the concrete is carried out, and the relation between the elastic modulus and the compressive strength of the concrete is made clear, so that the important significance is provided for the design and construction of engineering.

The compression elasticity modulus test method of the concrete is in accordance with JTG E30-2005 Standard road engineering Cement and Cement concrete test Specification. In order to ensure the accuracy and the specification of the test data, the micro-deformation measuring instrument needs to be installed on the center line of two sides of the test piece and be symmetrical to the two sides of the test piece, and eight positioning points a1, a2, b1, b2, c1, c2, d1 and d2 on four surfaces of the test piece a, b, c and d shown in fig. 4 need to be measured and positioned by a steel ruler (measuring range is 600mm, and the division value is 1mm) before the micro-deformation measuring instrument is installed. Taking the positioning points a1 and a2 on the a surface as examples, the distance from the point a1 to the b surface is 75mm, the distance from the point a1 to the d surface is 75mm, the distance from the point a1 to the top surface of the specimen is 75mm, the distance from the point a1 to the point a2 is 150mm, the distance from the point a2 to the b surface is 75mm, the distance from the point a2 to the d surface is 75mm, and the distance from the point a2 to the bottom surface of the specimen is 75 mm. In the same way, b1 and b2 points of the b-plane, c1 and c2 points of the c-plane, and d1 and d2 points of the d-plane were located, respectively.

In the prior art, the eight positioning points need to be manually measured and found out through a steel ruler, the positioning points need to be measured and found out when the concrete compression elastic modulus test is carried out every time, time and labor are wasted, and measurement errors are easy to occur. Therefore, an auxiliary device for the concrete compression elastic modulus test is developed to replace a steel ruler for manual measurement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an experimental auxiliary device of concrete compressive elasticity modulus to carrying out the experimental anchor point that all needs to be measured with the steel rule of concrete compressive elasticity modulus at every turn among the solution prior art, waste time and energy and appearing measuring error easily, influence the problem of test result.

In order to achieve the above object, the utility model discloses a technical solution is:

the utility model provides a experimental auxiliary device of concrete compression elasticity modulus, includes supplementary body, supplementary body comprises two mutually perpendicular's supplementary template, the cross section of supplementary template is rectangle, and is long: 300mm, width: 150mm, be equipped with first locating hole and second locating hole on supplementary template, first locating hole is 75mm apart from supplementary template's long limit, is 75mm apart from supplementary template left side minor face, is 225mm apart from supplementary template right side minor face, the second locating hole is 75mm apart from supplementary template's long limit, is 225mm apart from supplementary template left side minor face, is 75mm apart from supplementary template right side minor face.

Preferably, one long side of one auxiliary template is fixedly connected with one long side of the other auxiliary template.

Preferably, the left side or the right side of the auxiliary body is provided with an L-shaped guiding rule matched with the longitudinal section of the auxiliary body, and the guiding rule protrudes towards the inside of the auxiliary body.

Preferably, the thickness of the auxiliary template is 15 mm.

Preferably, the auxiliary template is made of aluminum alloy.

Compared with the prior art the utility model discloses the beneficial effect who has:

through the utility model discloses experimental auxiliary device of concrete compression elasticity modulus finds out test piece a, b, eight setpoint a1 on four faces of c and d, a2, b1, b2, c1, c2, d1 and d2, and make the mark, compare prior art and need find out the setpoint and make the mark with four faces of steel rule manual measurement test piece respectively before experimental at every turn, labour saving and time saving just is difficult to appear measuring error, the accuracy of test result has further been improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the auxiliary testing device.

Figure 2 the utility model discloses supplementary template cross section sketch map.

Fig. 3 is a schematic view of the longitudinal section of the auxiliary body of the present invention.

Figure 4 the utility model discloses test piece structure schematic diagram.

Detailed Description

The technical scheme of the utility model is explained in detail with the attached drawings as follows:

with reference to fig. 1 to 3, an auxiliary device for a concrete compression modulus test is used for assisting in finding eight positioning points a1, a2, b1, b2, c1, c2, d1 and d2 on four surfaces of test pieces a, b, c and d before the concrete compression modulus test. Including, the longitudinal section is the supplementary body and the guiding ruler 5 of class L shape, and supplementary body comprises two mutually perpendicular's supplementary template, and specific supplementary template cross section is rectangle, length: 300mm, width: 150mm, thickness: 15 mm. More specific auxiliary template is provided with a first positioning hole 1 and a second positioning hole 2, the vertical distance from the first positioning hole 1 to any long edge 3 of the auxiliary template is 75mm, the vertical distance from the first positioning hole 1 to the short edge 4 on the left side of the auxiliary template is 75mm, the vertical distance from the first positioning hole 1 to the short edge 4 on the right side of the auxiliary template is 225mm, the vertical distance from the second positioning hole 2 to any long edge 3 of the auxiliary template is 75mm, the vertical distance from the second positioning hole 2 to the short edge 4 on the left side of the auxiliary template is 225mm, the vertical distance from the second positioning hole 1 to the short edge 4 on the right side of the auxiliary template is 75mm, and the distance from the first positioning hole 1 to the second positioning hole. The distance between the two auxiliary templates is measured by a steel ruler (the measuring range is 600mm, and the division value is 1mm) and a first positioning hole 1 and a second positioning hole 2 are positioned.

Wherein, the guiding ruler is type L shape, with supplementary body longitudinal section looks adaptation, and the left side or the right side at supplementary body are installed to guiding ruler 5, and guiding ruler 5 is protruding to the inside of supplementary body.

Further, one long side 3 of one auxiliary template is fixedly connected with one long side 3 of the other auxiliary template, and the two auxiliary templates are perpendicular to each other, as shown in fig. 1.

Furthermore, the first positioning hole 1 and the second positioning hole 2 are arranged into a cross-shaped slot, which is more beneficial to marking a pencil or a marking pen.

Furthermore, the auxiliary template is made of aluminum alloy.

Right the utility model discloses experimental auxiliary device of concrete resistance to compression elasticity modulus use explains:

at first prepare as the test piece shown in figure 4, will the utility model discloses experimental auxiliary device of concrete resistance to compression elasticity modulus places on the arris as the test piece of figure 4, adjusts auxiliary device's position, makes auxiliary template and test piece side in close contact with to make the guiding ruler lean on tightly at the up end of test piece, make the mark through first locating hole 1 and second locating hole 2 with marker pen or pencil on the test piece. And finding out positioning points of the other two surfaces of the test piece by the same method.

Use the utility model discloses experimental auxiliary device of concrete compression elasticity modulus finds out test piece a, b, eight setpoint a1 on c and four faces of d, a2, b1, b2, c1, c2, d1 and d2, and make the mark, compare prior art and need find out the setpoint and make the mark with four faces of steel rule manual measurement test piece respectively before experimental at every turn, labour saving and time saving just is difficult to appear measuring error, the accuracy of test result has further been improved.

Parts not described in the above embodiments can be implemented by taking or referring to the prior art.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. The utility model provides a experimental auxiliary device of concrete compression elasticity modulus, its characterized in that, includes supplementary body, supplementary body comprises two mutually perpendicular's supplementary template, the cross section of supplementary template is rectangle, and is long: 300mm, width: 150mm, be equipped with first locating hole and second locating hole on supplementary template, first locating hole is 75mm apart from supplementary template's long limit, is 75mm apart from supplementary template left side minor face, is 225mm apart from supplementary template right side minor face, the second locating hole is 75mm apart from supplementary template's long limit, is 225mm apart from supplementary template left side minor face, is 75mm apart from supplementary template right side minor face.

2. The concrete compression elasticity modulus test auxiliary device of claim 1, wherein one long edge of one auxiliary template is fixedly connected with one long edge of the other auxiliary template.

3. The concrete compression elasticity modulus test auxiliary device of claim 2, wherein an L-shaped guiding rule matched with the longitudinal section of the auxiliary body is installed on the left side or the right side of the auxiliary body, and the guiding rule protrudes towards the inside of the auxiliary body.

4. The auxiliary device for testing the compression elastic modulus of concrete as claimed in claim 1, wherein the thickness of the auxiliary template is 15 mm.

5. The concrete compression elasticity modulus test auxiliary device of claim 1, wherein the auxiliary template is made of aluminum alloy.