The main reason why spiral stirrups can improve the bearing capacity of the normal section of axial compressed columns is that ( ).
A: the strength of spiral stirrups is high
B: spiral stirrups can effectively restrain the longitudinal reinforcements and improve the compressive strength of longitudinal reinforcements
C: spiral stirrups can effectively restrain the core concrete and improve its compressive strength
D: spiral stirrups have strong deformation capacity
A: the strength of spiral stirrups is high
B: spiral stirrups can effectively restrain the longitudinal reinforcements and improve the compressive strength of longitudinal reinforcements
C: spiral stirrups can effectively restrain the core concrete and improve its compressive strength
D: spiral stirrups have strong deformation capacity
举一反三
- In the calculation of the bearing capacity of the normal section of a doubly reinforced concrete rectangular beam, if [img=63x27]1803b9532781df8.png[/img], it indicates that ( ). A: the compressive reinforcements will not yield B: the tensile reinforcements will not yield C: the section is over-sized D: the compressive reinforcements have already yielded when the failure of the beam occurs
- For a given [img=24x27]1803b9532cc8765.png[/img], when calculating the bearing capacity of the normal section of a doubly reinforced concrete rectangular beam, if [img=46x23]1803b95334b0ce7.png[/img], it indicates that ( ). A: the compressive reinforcements are excessively allocated B: the reinforcements in the compression zone are lightly allocated and needs to be reallocated C: The beam section is over-sized D: The concrete strength is too large
- The most effective measure to avoid the inclined compression failure for a beam is by ( ). A: increasing the amount of stirrups B: increasing the section size C: increasing the amount of web reinforcements D: increasing the amount of bent-up reinforcements
- Yoga can help improve strength and flexibility.
- In the calculation of the bearing capacity of the normal section of a doubly reinforced concrete rectangular beam, the reason for the condition [img=63x27]1803b953249aa8d.png[/img] should be satisfied is to ( ). A: ensure the simplification of the calculation diagram B: avoid the occurrence of the over-reinforced failure C: ensure the compressive reinforcements yield at the failure of the beam D: ensure the tensile reinforcements yield at the failure of the beam