A: tensile strength
B: tensile yield
C: elongation at break
D: tensile fracture stress
举一反三
- For fully prestressed concrete under the service load, in the section of concrete member A: Tensile stress is allowed to occur B: No tensile stress occurs C: Allow for cracks D: There is no compressive stress
- 金属疲劳的判断依据是( )。 A: Strength B: Plastic C: Tensile strength D: Fatigue strength
- If the normal stress on the cross section of the axial tensile rod is σ, then the normal stress and shear stress on the 45° degrees section are .
- On the top of the concrete pavement, （） is developed during day time. A: tensile stress B: shear stress C: compressive stress D: bulk stress
- The cross section of a straight beam remains plane when the beam deforms due to bending. This causes ( ) on one side of the beam and ( ) on the other side. The neutral axis is subjected to ( ) .? normal stress; shear stress; zero stress|tensile stress; compressive stress; zero stress|compressive stress; tensile stress; maximum normal stress|shear stress; normal stress; zero stress
内容
- 0
The compressive strength of brittle materials is generally （ ） than its tensile strength.。 A: higher B: equal C: lower
- 1
Which of the following is NOT considered as a property of asphalt concrete? A: Thermal cracking resistance B: Tensile strength C: Compressive strength D: Fatigue crack resistance
- 2
For low carbon steels, the Hooke's law σ=Eε is applicable when the unidirectional tensile stress is not greater than ___.
- 3
In the heating curing of concrete, the loss of prestressing force caused by the difference in temperature between the tensile reinforcement and the tensile equipment only exists in the pretension component.
- 4
In conventional reinforced concrete, the high tensile strength of steel is combine with concrete's great ________________ to form a structural material that is strong in both ________ and ________.