拉伸强度的英文是 A: tensile strength B: tensile yield C: elongation at break D: tensile fracture stress

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.

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. A: 正确 B: 错误

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

Concrete is basically a compressive material and has good tensile strength.

If [img=46x23]1803b95368d5b28.png[/img], the concrete fiber strain at the edge of the compression zone at the failure of the beam satisfies the condition [img=59x19]1803b95371d436c.png[/img], and at the same time, the tensile strain of the tensile reinforcements satisfies the condition [img=53x22]1803b95379d4907.png[/img], i.e., the tensile reinforcement has yielded at the failure of the beam, and the failure mode of such beam belongs to the over-reinforced failure.

Reinforced concrete has steel bars that are placed in the concrete to carry tensile forces.

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 .

For low carbon steels, the Hooke's law σ=Eε is applicable when the unidirectional tensile stress is not greater than ___.

The compressive strength of brittle materials is generally （ ） than its tensile strength.。 A: higher B: equal C: lower