Method for measuring bending moment strength of concrete
A strength measurement and concrete technology, applied in the direction of using a stable bending force to test the strength of materials, can solve the problem of not reflecting the real situation of the structural bearing capacity, and achieve the effect of eliminating the size effect, improving reliability and good consistency
Active Publication Date: 2018-12-07
GUANGXI UNIV
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Problems solved by technology
In the current structural design, the bending problem is evaluated by the bending-tensile stress intensity index, and the tensile strength parameter
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The invention discloses a method for measuring bending moment strength of concrete. The method includes bending moment strength test equipment, a bending limit moment calculation formula, bending moment strength calculation formula, bending moment failure standards and teat result analysis method. A measured bending moment strength index eliminates size effect caused by the test method, is closerto real bending strength of the concrete, and has good consistency with tensile strength of the concrete. The invention provides the method for accurately measuring the bending capacity of the concrete which uses the bending moment strength as a design parameter and has the beneficial effects on improving the reliability and safety of the structure design of beams and plates.
Description
technical field [0001] The invention belongs to the technical field of performance testing of concrete structures, and in particular relates to a method for measuring concrete bending stress moment strength. Background technique [0002] Bending is the main stress mode of concrete beam and slab structures, and the limit state of its bearing capacity determines the safety of the structure, so it is very important to accurately measure the parameters of the bending resistance of concrete. In the current structural design, the bending problem is evaluated by the bending-tensile stress intensity index, and the tensile strength parameter is used in the design. The bending-tensile stress intensity index obtained cannot reflect the real situation of the structural bearing capacity. [0003] Han Wenba and Huang Shuanghua proposed the theory of non-zero stress moment elasticity, completely independent of bending from stretching, and revised the existing elastic theory; Xiao Jianhua e...
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CPCG01N3/20
Inventor 梁军林容洪流兰一夫李方念魏建辉黄耀辉
Owner GUANGXI UNIV
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