CN208270317U - Concrete thermal cracking detection system - Google Patents

Concrete thermal cracking detection system Download PDF

Info

Publication number
CN208270317U
CN208270317U CN201721412215.XU CN201721412215U CN208270317U CN 208270317 U CN208270317 U CN 208270317U CN 201721412215 U CN201721412215 U CN 201721412215U CN 208270317 U CN208270317 U CN 208270317U
Authority
CN
China
Prior art keywords
concrete
temperature stress
stress testing
concrete temperature
degree
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201721412215.XU
Other languages
Chinese (zh)
Inventor
朱贺
胡昱
李庆斌
王戈
韩治国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGCHUN RISING SUN TESTING INSTRUMENTS CO LTD
Tsinghua University
Original Assignee
CHANGCHUN RISING SUN TESTING INSTRUMENTS CO LTD
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGCHUN RISING SUN TESTING INSTRUMENTS CO LTD, Tsinghua University filed Critical CHANGCHUN RISING SUN TESTING INSTRUMENTS CO LTD
Priority to CN201721412215.XU priority Critical patent/CN208270317U/en
Application granted granted Critical
Publication of CN208270317U publication Critical patent/CN208270317U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The utility model discloses a kind of detection systems of concrete thermal cracking, comprising: more concrete temperature stress testing machines;Control module is connected with the more concrete temperature stress testing machines, provides multiple degree of restraint for controlling the multiple concrete temperature stress testing machine, so under the first restriction range confined concrete deformation;Wherein, first restriction range is (0, A), 100% < A < 200%.The utility model has the advantages that quantification can be synchronized during same test simulates different degree of restraint.

Description

Concrete thermal cracking detection system
Technical field
The utility model relates to building hydraulic engineering concrete test technical fields, are related to a kind of concrete thermal cracking inspection Examining system.
Background technique
Massive concrete temperature cracks are an important engineering problems, and concrete temperature stress testing machine (TSTM) can With the temperature stress and deformation of the concrete under laboratory simulation effect of contraction, material and knot are established by research technique Connection between structure, and a variety of cracking resistance indexs can be measured and evaluated simultaneously.
Concrete temperature stress testing machine (TSTM) is defined by ratio mutual between restrained deformation and Free Transform Constraint degree, current concrete temperature stress testing machine (TSTM) is single machine single control, can only simulate staff cultivation degree (100% Degree of restraint).But degree of restraint suffered by the different parts of concrete structure is not identical, so the constraint that simulation is different Influence of the degree to the rule of development of cognition concrete material property and to structural behaviour is most important.Additional current test Means are by single machine single control, and since concrete material has larger discrete feature, test result lacks representative.Difference batch Secondary test result gap may be larger, and the not also more difficult analogy of the test result between commensurate.
Utility model content
The utility model aims to solve at least one of above-mentioned technical problem.
For this purpose, the purpose of this utility model is that propose a kind of detection system of concrete thermal cracking, it can be same Synchronous quantification simulates different degree of restraint during test.
To achieve the goals above, the embodiments of the present invention disclose a kind of detection system of concrete thermal cracking System, comprising: more concrete temperature stress testing machines;Control module, it is homogeneous with the more concrete temperature stress testing machines Even, multiple degree of restraint are provided for controlling the multiple concrete temperature stress testing machine, and then under the first restriction range The deformation of confined concrete;Wherein, first restriction range is (0, A), 100% < A < 200%.
Further, the concrete temperature stress testing machine includes:
First concrete temperature stress testing machine, the degree of restraint of the first concrete temperature stress testing machine are 0;
Second concrete temperature stress testing machine, the degree of restraint of the second concrete temperature stress testing machine are X;
The degree of restraint of third concrete temperature stress testing machine, the third concrete temperature stress testing machine is 100%;
4th concrete temperature stress testing machine, the degree of restraint of the 4th concrete temperature stress testing machine are Y;
Wherein, X < 100% < Y, the first concrete temperature stress testing machine, second concrete temperature stress examination Machine, the third concrete temperature stress testing machine and the 4th concrete temperature stress testing machine is tested respectively to be correspondingly arranged on Concrete;The control module is also used to control the third concrete temperature stress testing machine and reaches first in advance in deformation extent If reverting to the initial position before deformation when length, the control module is also used to control the 4th concrete temperature stress examination Continue to become to the opposite direction of deformation after testing the initial position before machine reverts to deformation when deformation extent reaches the first preset length Shape.
According to the detection system of the concrete thermal cracking of the utility model embodiment, pass through more concrete temperature stress Testing machine interconnection, and more concrete temperature stress testing machines are controlled by control module, the concrete itself controlled is carried out not The detection in same test process to concrete deformation situation may be implemented in same degree of restraint.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural block diagram of the detection system of the concrete thermal cracking of the utility model;
Fig. 2 is different degree of restraint schematic diagrames in the utility model one embodiment.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as instruction or Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.
Referring to following description and drawings, it will be clear that these and other aspects of the embodiments of the present invention.At these In description and attached drawing, some particular implementations in the embodiments of the present invention are specifically disclosed, to indicate to implement this reality With some modes of the principle of novel embodiment, but it is to be understood that the range of the embodiments of the present invention is not limited System.On the contrary, the embodiments of the present invention include all changes fallen within the scope of the spirit and intension of attached claims Change, modification and equivalent.
The utility model is described below in conjunction with attached drawing.
Fig. 1 is the structural block diagram of the detection system of the concrete thermal cracking of the utility model.As shown in Figure 1, this is practical The detection system of novel concrete thermal cracking, comprising: more concrete temperature stress testing machines 100 and control module 200. Control module 200 is connected with more concrete temperature stress testing machines 100, for controlling multiple concrete temperature stress tests Machine 100 provides multiple mutually different degree of restraint, so under the first restriction range confined concrete deformation.Its In, the first restriction range is (0, A), 100% < A < 200%.The referred to as partially restrained when degree of restraint is less than 100% constrains journey Degree is known as 100% and is greater than 100% as Planar Mechanisms for staff cultivation, degree of restraint.In an example of the utility model, A is 150% or 199%.
In one embodiment of the utility model, concrete temperature stress testing machine is four, not to be the first coagulation Soil temperature degree pressure tester, the second concrete temperature stress testing machine, third concrete temperature stress testing machine and the 4th coagulation Soil temperature degree pressure tester.First concrete temperature stress testing machine, the second concrete temperature stress testing machine, third concrete Temperature stress testing machine and the 4th concrete temperature stress testing machine are respectively correspondingly arranged on the concrete for deformation.Wherein, The degree of restraint of first concrete temperature stress testing machine is 0 (i.e. no constraint condition, concrete can Free Transform), and second is mixed The degree of restraint of solidifying soil temperature degree pressure tester is X, and the degree of restraint of third concrete temperature stress testing machine is 100%, the The degree of restraint of four concrete temperature stress testing machines is Y.Wherein, X < 100% < Y.
Fig. 2 is different degree of restraint schematic diagrames in the utility model one embodiment.As shown in Fig. 2, in the utility model An example in, X 50%, Y 150%.Solidifying soil temperature degree pressure tester is four, is A machine, B machine, C machine and D machine.Its In, A machine constraint degree is 0% (free reference piece), and the constraint degree of setting B machine is 50% (partially restrained), the constraint degree of C machine For 100% (staff cultivation), the constraint degree of D machine is 150% (Planar Mechanisms).Control module 200 controls third concrete temperature stress Testing machine reverts to the initial position before deformation when deformation extent reaches the first preset length (such as 2 μm).Control module 200 Be also used to control the 4th concrete temperature stress testing machine reverted to when deformation extent reaches the first preset length deformation before Continue to deform to the opposite direction of deformation after initial position.
In an example of the utility model, set constraint threshold value as 2 μm, A machine test specimen (concrete, it is described below in It is all made of test specimen) unfettered effect, it is deformed into Free Transform εf.Work as εfWhen reaching 2 μm, start the control motor of B machine, another B The deformation epsilon of machine test specimenr1Reach 1 μm, that is, realizes 50% constraint condition;For overconstrained condition, start the control motor of D machine, The deformation epsilon of another D machine test specimenr2Reach 1.5 μm, that is, realizes 150% constraint condition;Similarly, if the deformation of C machine reaches 2 μm, i.e., Start the control motor of C machine, 100% constraint condition is realized in its another deformation-recovery to 0
According to the detection system of the concrete thermal cracking of the utility model embodiment, pass through more concrete temperature stress Testing machine interconnection, and more concrete temperature stress testing machines are controlled by control module, the concrete itself controlled is carried out not The detection in same test process to concrete deformation situation may be implemented in same degree of restraint.
In addition, other compositions of the concrete thermal cracking detection system of the utility model embodiment and effect are for this All be for the technical staff in field it is known, in order to reduce redundancy, do not repeat them here.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiment or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model is by claim and its equivalent limits.

Claims (1)

1. a kind of detection system of concrete thermal cracking characterized by comprising
More concrete temperature stress testing machines;
Control module is connected, for controlling the multiple concrete temperature with the more concrete temperature stress testing machines Pressure tester provides multiple degree of restraint, so under the first restriction range confined concrete deformation;
Wherein, first restriction range is (0, A), 100% < A < 200%.
CN201721412215.XU 2017-10-27 2017-10-27 Concrete thermal cracking detection system Active CN208270317U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721412215.XU CN208270317U (en) 2017-10-27 2017-10-27 Concrete thermal cracking detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721412215.XU CN208270317U (en) 2017-10-27 2017-10-27 Concrete thermal cracking detection system

Publications (1)

Publication Number Publication Date
CN208270317U true CN208270317U (en) 2018-12-21

Family

ID=64673245

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721412215.XU Active CN208270317U (en) 2017-10-27 2017-10-27 Concrete thermal cracking detection system

Country Status (1)

Country Link
CN (1) CN208270317U (en)

Similar Documents

Publication Publication Date Title
Lin et al. Mechanical behavior around double circular openings in a jointed rock mass under uniaxial compression
Wang et al. Investigation of the fracture modes of red sandstone using XFEM and acoustic emissions
Liu et al. Experimental study on the strength and fracture mechanism of sandstone containing elliptical holes and fissures under uniaxial compression
Vogler et al. A comparison of tensile failure in 3D-printed and natural sandstone
US9234825B2 (en) Method and apparatus for fatigue and viscoelastic property testing of asphalt mixtures using a loaded wheel tester
Bentz et al. Early-age properties of cement-based materials. II: Influence of water-to-cement ratio
Lai et al. Unified solution for poroelastic oscillation indentation on gels for spherical, conical and cylindrical indenters
Bentz Cement hydration: building bridges and dams at the microstructure level
CN103234898B (en) Ablation testing apparatus and method for applying load on-line
CN106092724B (en) Concrete temperature stress testing machine with temperature deformation self-compensating function
CN103926159B (en) A kind of microbonding point device for testing creep resistance and using method
CN107976366A (en) A kind of experimental observation apparatus and method for simulating rock-like materials crack propagation
CN106018094A (en) Concrete temperature stress testing machine and creep testing method
CN208270317U (en) Concrete thermal cracking detection system
CN104483196B (en) Test structure of micro-beam fracture strength based on lateral comb tooth type capacitance
Yang et al. Application of the expanded distinct element method for the study of crack growth in rock-like materials under uniaxial compression
CN103983761B (en) With the method for Behavior of Hardened Cement Paste permeability evaluating cementing concrete ring self-healing properties
CN110186781A (en) A kind of drop strong method of geomechanics model comprehensive method test
CN106680315A (en) Compactness detection method of steel pipe concrete
Mamlouk et al. Refining conditions of fatigue testing of hot mix asphalt
CN205898553U (en) Use concrete temperature stress testing machine system that gos into formula environmental laboratory
Reddy et al. Constant strain rate experiments and constitutive modeling for a class of bitumen
CN105300795B (en) A kind of detection method of slag product stability
CN104422623A (en) Quantitative analysis method for effect of bonding agent in solid propellant
CN107560930A (en) Concrete thermal cracking detecting system and detection method

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant