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华工溷凝土结构题库题目及谜底(国外英文资料)
华工溷凝土结构题库题目及答案(国外英文资料)
Chapter ii material
In the specification, the basic representation of the various strength indicators of concrete is (???
(A)??? Cube strength standard value???
(B)??? Axial compressive strength standard
(C)??? Axial compressive strength design value
(D)??? Tensile strength standard
The strength of materials used in structural design is (???).
(A)??? The average strength of the material
(B)??? The average strength of the material divided by the component coefficient
(C)??? The strength value of the material with certain guarantee rate
(D)??? Minimum strength of the material
?
The concrete strength grade C is determined by the test value of the cubes compressive strength test.
(A)??? The average value is 50%
(B)??? Take -1.645, and the warranty rate is 95%
(C)??? Take -2, the overvalue guarantee is 97.72%
(D)??? Take - the value of the above value is 84.13%
?
The dimensions of the standard specimen for assessing the strength of the concrete shall be shown in the following items.
(A)??? 150 mm * 150 mm * 150 mm
(B)??? 150 mm * 150 mm * 300 mm
(C)??? 100 mm * 100 mm * 100 mm
(D)??? 200 mm * 200 mm * 200 mm
?
The following statements (?????) are correct.
(A)??? Steel bar can improve tensile strength and compressive strength through cold drawing
(B)??? The high carbon steel reinforcement USES the conditional yield strength to indicate the stress of strain at 0.002
(C)??? The strength grade of concrete is controlled by 150mm cube and is determined by -1.645
(D)??? The design value of concrete compressive strength is determined by 95% guarantee
The measure of the strength of concrete is correct in terms of its numerical value.
A)??? ?
B)??? ?
(C)??? ?
(D)??? ?
?
Which of the following answers is correct?
A)??? The strength of the concrete is determined by the average of the cube strength
The strength of the compressive strength of the concrete in the column shall be the compressive strength of the prism; The strength of the concrete compress
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