This standard applies to load tests on reinforced concrete structures and prestressed concrete structures of industrial and civil buildings and general structures. It is not applicable to research tests with special requirements, and structural tests under environmental conditions such as high temperature, negative temperature, and corrosive media. GB 50152-1992 Concrete Structure Test Method Standard GB50152-1992 Standard Download Decompression Password: www.bzxz.net

Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
50152—92
Standard Methods for
Testing of Concrete Structures
1992—01-07
1992—07—01
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Jointly Issued
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Standard Methods for
50152—92
Editor Department: Former Ministry of Urban and Rural Construction Environment of the People's Republic of China Ministry of Construction Approval department: Ministry of Construction of the People's Republic of China July 1992
Effective date: 1
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Notice on the release of the national standard "Standard for Test Methods of Concrete Structures"
Jianbiao [1992] No. 29
According to the requirements of the former State Planning Commission's document No. Jizong [1986] 2630, the "Standard for Test Methods of Concrete Structures" jointly compiled by the China Academy of Building Research and relevant units has been reviewed by relevant departments. The "Standard for Test Methods of Concrete Structures" GB50152-92 is now approved as a national standard and will be implemented from July 1, 1992. This standard is managed by the Ministry of Construction and interpreted by the China Academy of Building Research. The publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction. Ministry of Construction of the People's Republic of China
January 7, 1992
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Preparation Instructions
This standard is prepared by the China Academy of Building Research and related units in accordance with the requirements of the former State Planning Commission's Document No. 2630 [1986]. In the process of preparing this standard, the standard preparation team conducted extensive investigations and studies, carefully summarized the scientific research results and practical experience of test work since the founding of the People's Republic of my country, referred to relevant international standards and advanced foreign standards, carried out scientific research and test verification work on major test technology issues, and widely solicited opinions from relevant units across the country. Finally, our ministry and relevant departments reviewed and finalized the draft. In view of the fact that this standard is prepared for the first time, during the implementation process, it is hoped that all units will combine the concrete structure test work practice and scientific research, carefully summarize experience, and pay attention to accumulating data. If any modification or supplement is found, please send your opinions and related materials to the Structure Institute of the China Academy of Building Research (Beijing Anwai Xiaohuangzhuang) for reference in future revisions.
Ministry of Construction of the People's Republic of China
October 1991
Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
Chapter 1 General Provisions
Chapter 2 Fabrication of Test Structural Components and Basic Mechanical Properties of Materials Chapter 3 Measuring Instruments, Loading Equipment and Test Devices Section 1 Measuring Instruments
Section 2 Loading Equipment.
Section 3
Test Devices.
Chapter 4 Test Loads and Loading Methods
Section 1 Loading Diagrams and Loading Schemes
Section 2 Determination of Test Loads
Section 3 Loading Procedures
Chapter 5 Preparations before Testing
Chapter 6
Measurement of deformation.
Section 1 Overall deformation of test structural components·Section 2 Local deformation of test structural componentsSection 3 Measurement time of deformation of test structural componentsChapter 7 Anti-crack test and crack measurement
Section 1 Anti-crack test of test structural componentsSection 2 Measurement of cracks in test structural components…Chapter 8 Determination of bearing capacity.
Chapter 9 Compilation and analysis of test data
Section 1 Compilation of original test data
Section 2 Compilation of test results of deformation measurementSection 3 Compilation of test results of anti-crack test and crack measurementSection 4 Compilation of test results of bearing capacity test
Section 5 Error and statistical analysis of test results·Chapter 10 Special tests
Engineering construction standard full-text information system
Engineering construction standard full-text information system
Section 1 Mechanical properties test of concrete structural components under low-cycle repeated loads43Section 1 Equal-amplitude fatigue test of concrete flexural members48
Section 3 Steel bars Safety and protection measures for comparative test of bond strength between concrete and concrete
Chapter 11
Appendix 1
Loading device
Appendix 2
Appendix 3
Common test record forms
Terms used in this standard
Additional instructions
Engineering construction standard full text information system
Engineering construction standard full text information system
Chapter 1 General provisions
Article 1.0.1 This standard is specially formulated to ensure the quality of concrete structure tests, correctly evaluate the basic performance of concrete structures, and unify the test methods of concrete structures.
This standard is applicable to load tests of reinforced concrete structures and prestressed concrete structures of industrial and civil buildings and general structures. It is not applicable to research tests with special requirements, and structural tests under environmental conditions such as high temperature, negative temperature, and corrosive media.
Article 1.0.3 When implementing this standard, it shall also comply with the provisions of the current national standards "Concrete Structure Design Code" GBJ10-89, "Building Structure Load Code" GBJ9-87 and other relevant standards and specifications. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 2
Manufacturing and Materials of Test Structural Components
Basic Mechanical Properties
Article 2.0.1 The materials, cross-sectional geometric dimensions and construction quality of test structural components shall comply with the requirements of the current national standards "Concrete Structure Engineering Construction and Acceptance Code", "Precast Concrete Component Quality Inspection and Evaluation Standard" and relevant standards and specifications.
When manufacturing research test structural components, the correct position of the pre-processed parts and reserved holes for measuring instruments shall be ensured and the weakening of the cross section shall be reduced, and measures shall be taken to prevent damage to the embedded sensor components during construction. Partial reinforcement such as steel mesh or steel plate shall be adopted in the parts where the components are subjected to large concentrated loads.
Article 2.0.2 The steel bars of the test structural components shall be tested for yield strength, tensile strength, elongation and cold bending and other mechanical properties. The tensile test of the steel bar specimens shall comply with the requirements of the current national standard "Metal Tensile Test Method". When it is necessary to determine the stress of the steel bars of the component, the elastic modulus of the steel bars shall be measured and the stress-strain curve shall be drawn.
Article 2.0.3 For research tests, when making the test structural components, the same batch of mixtures shall be used to make concrete cube specimens, and they shall be cured under the same conditions as the test structural components.
When it is necessary to determine the stress, elastic modulus or axial compressive strength of concrete, prism specimens shall be made, and the stress-strain curve of concrete shall be drawn. When conducting crack resistance test research, concrete cube specimens for measuring tensile strength shall be made at the same time.
The production, curing and testing of cube specimens and prism specimens shall comply with the requirements of the current national standard "Methods for Testing Mechanical Properties of Ordinary Concrete". Article 2.0.4 When new types of steel bars or cement are used to make test structural components, the quality of the materials shall meet the requirements of the relevant current national standards and specifications. Article 2.0.5 For the sampling inspection of prefabricated components produced in batches, the mechanical properties of the steel bars and concrete of the test components shall be provided by the inspection unit before the test. When it is necessary to further determine the actual strength of the material of the test structural component, after the component test is completed, the test piece can be cut from the less stressed part of the component to conduct the material mechanical property test.
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 3
Measuring Instruments, Loading Equipment and
Testing Equipment
Section 1 Measuring Instruments
Article 3.1.1 The measuring instruments used for concrete structure testing shall comply with the requirements of the accuracy level of this section and shall have a certificate of conformity issued by the competent metrology department for regular inspection. Article 3.1.2 The accuracy and error of various displacement measuring instruments shall comply with the following provisions:
The allowable error values ​​of steel rulers, micrometers, dial indicators and large-range dial indicators shall comply with Table 3.1.2 provisions;
Allowable error value of steel ruler, dial indicator, micrometer, and large-range dial indicator
Error of indication in any section (um)
Steel ruler
Newly made
Used
Newly made
Used
Large-range
Divider indicator
Segment (mm)
Total error value of indication (μum)
Range (mm)|| tt||±100|±100|±150|±200
±50±80wwW.bzxz.Net
Return error (um)
Range (mm)
Variation value
Note: ①n in the table is an index, micrometer n=-1, percentage indicator n=0, large-range percentage indicator n=1, steel ruler n=2;
②The allowable error values ​​of the percentage indicator listed in the table are the allowable error values ​​when the accuracy grade of the percentage indicator is grade 1.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
2. The accuracy of the level and theodolite shall not be lower than Grade 3 accuracy (DS3) and Grade 2 accuracy (DS2) respectively
3. The accuracy of the displacement sensor shall not be lower than Grade 1.0; the minimum scale value of the indicating instrument of the displacement sensor shall not be greater than 1.0% of the measured total displacement, and the indication error shall be 1.0%FS;
4. The minimum scale value of the inclinometer shall not be greater than 5\, and the indication error of the electronic inclinometer shall be ±1.0%FS.
Note: FS indicates the full scale of the measuring instrument. Article 3.1.3 The accuracy, error, etc. of various strain measuring instruments shall meet the following requirements respectively:
1. The gauge error of the strain measuring device composed of the micrometer, vernier gauge and displacement sensor specified in Article 3.1.2 of this standard shall be ±1.0%, and the minimum scale value shall not be greater than 1.0% of the total strain being measured; 2. The indication error and gauge error of the double-lever strain gauge shall both be ±1.0%, and the minimum scale value shall not be greater than 2.0% of the total strain being measured; 3. The accuracy of the static resistance strain gauge shall not be lower than Class B, and the minimum scale value shall not be greater than 10×10-;
The accuracy of the dynamic resistance strain gauge shall not be lower than Class B, the reference range shall not be less than 200×10-4, the output sensitivity shall not be lower than 0.1mA/10- or 0.1mV/10-6, and the carrier frequency shall not be lower than 10 times the frequency of the strain being measured; the accuracy of the resistance strain gauge shall not be lower than Class C; for fatigue tests, the accuracy shall not be lower than Class B.
Article 3.1.4 The minimum scale value of the instrument for observing the crack width should not be greater than 0.05mm.
Article 3.1.5 The accuracy and error of various force measuring instruments should meet the following requirements:
1. The minimum scale value of spring tension and pressure dynamometers should not be greater than 2.0%FS, and the indication error should be ±1.5%;
2. The accuracy of the load sensor should not be lower than Class C. For long-term tests, the accuracy should not be lower than Class B. The minimum scale value of the indicating instrument of the load sensor should not be greater than 1.0% of the total force value of the engineering construction standard full-text information system
engineering construction standard full-text information system
, and the indication error should be ±1.0%FS. 。 Article 3.1.6 The accuracy and error of various recording instruments shall meet the following requirements respectively:
1. The accuracy of X-Y function recorder shall not be lower than Class 1.0; 2. The optical oscilloscope shall comply with the provisions of the current standard "Optical Oscilloscope"; 3. The accuracy of pen recorder shall not be lower than Class 1.0; 4. The signal-to-noise ratio of the tape recorder shall not be less than 35dB, the tape speed error shall be ±0.7%, and the linear error shall not be greater than 0.5%. Section 2 Loading Equipment
Article 3.2.1 Various testing machines used for concrete structure testing shall meet the accuracy grade requirements specified in Article 3.2.7 of this standard, and shall have a certificate of regular inspection issued by the competent metrology department. The repaired testing machine shall be re-inspected and a new certificate of conformity shall be obtained. When other loading equipment is used to apply loads to the test structure components, the loading error shall be ±3.0%, and the error for field tests shall be ±5.0%. Article 3.2.2 When the gravity generated by various weights is used as the test load, the indication error of the weighing instrument for weighing the weights should be 1.0%, and the weights should meet the following requirements: 1. For water-absorbing weights, measures should be taken to prevent the water content of these weights from changing during use, and sampling should be conducted to review the accuracy of the loading immediately after the test; 2. Block weights such as iron blocks and concrete blocks should be weighed piece by piece or in piles step by step. The maximum block weight should meet the needs of loading and grading, and should not be greater than 25kg; 3. Small block materials such as red bricks should be weighed in piles step by step; for small block materials with uniform block size, consistent water content and uniform block weight verified by sampling, the loading amount can be calculated according to the average block weight;
4. Bulk granular materials should be bagged or placed in a bottomless box placed on the surface of the test component and weighed step by step.
Article 3.2.3 When using hydrostatic pressure as a uniform test load, the water should not contain debris such as mud and sand. The water column height or a water meter with an accuracy of not less than 1.0 can be used to calculate the load.
Article 3.2.4 When using air pressure as a uniform test load, the inflatable capsule should not be stretched.5%. Section 2 Loading Equipment
Article 3.2.1 Various testing machines used for concrete structure testing shall meet the accuracy grade requirements specified in Article 3.2.7 of this standard and shall have a certificate of conformity issued by the competent metrology department for regular inspection. Repaired testing machines shall be re-inspected and a new certificate of conformity shall be obtained. When other loading equipment is used to apply loads to the test structure components, the loading error shall be ±3.0%, and the error for field tests shall be ±5.0%. Article 3.2.2 When the gravity generated by various weights is used as the test load, the indication error of the weighing instrument for weighing the weights should be 1.0%, and the weights should meet the following requirements: 1. For water-absorbing weights, measures should be taken to prevent the water content of these weights from changing during use, and sampling should be conducted to review the accuracy of the loading immediately after the test; 2. Block weights such as iron blocks and concrete blocks should be weighed piece by piece or in piles step by step. The maximum block weight should meet the needs of loading and grading, and should not be greater than 25kg; 3. Small block materials such as red bricks should be weighed in piles step by step; for small block materials with uniform block size, consistent water content and uniform block weight verified by sampling, the loading amount can be calculated according to the average block weight;
4. Bulk granular materials should be bagged or placed in a bottomless box placed on the surface of the test component and weighed step by step.
Article 3.2.3 When using hydrostatic pressure as a uniform test load, the water should not contain debris such as mud and sand. The water column height or a water meter with an accuracy of not less than 1.0 can be used to calculate the load.
Article 3.2.4 When using air pressure as a uniform test load, the inflatable capsule should not be stretched.5%. Section 2 Loading Equipment
Article 3.2.1 Various testing machines used for concrete structure testing shall meet the accuracy grade requirements specified in Article 3.2.7 of this standard and shall have a certificate of conformity issued by the competent metrology department for regular inspection. Repaired testing machines shall be re-inspected and a new certificate of conformity shall be obtained. When other loading equipment is used to apply loads to the test structure components, the loading error shall be ±3.0%, and the error for field tests shall be ±5.0%. Article 3.2.2 When the gravity generated by various weights is used as the test load, the indication error of the weighing instrument for weighing the weights should be 1.0%, and the weights should meet the following requirements: 1. For water-absorbing weights, measures should be taken to prevent the water content of these weights from changing during use, and sampling should be conducted to review the accuracy of the loading immediately after the test; 2. Block weights such as iron blocks and concrete blocks should be weighed piece by piece or in piles step by step. The maximum block weight should meet the needs of loading and grading, and should not be greater than 25kg; 3. Small block materials such as red bricks should be weighed in piles step by step; for small block materials with uniform block size, consistent water content and uniform block weight verified by sampling, the loading amount can be calculated according to the average block weight;
4. Bulk granular materials should be bagged or placed in a bottomless box placed on the surface of the test component and weighed step by step.
Article 3.2.3 When using hydrostatic pressure as a uniform test load, the water should not contain debris such as mud and sand. The water column height or a water meter with an accuracy of not less than 1.0 can be used to calculate the load.
Article 3.2.4 When using air pressure as a uniform test load, the inflatable capsule should not be stretched.
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