Measures to Increase Ductility of Reinforced Concrete Structural Members
Ductility is the capacity of reinforced concrete members to withstand significant deflection before failure. This property of reinforced concrete structural members is essential because it provides failure indicators and prevents total collapse. This is particularly important in seismic regions. The methods used to improve the ductility of reinforced concrete elements are discussed.
Enhancing the Flexibility of Reinforced Concrete Structural Members
Following are methods for enhancing productivity:
- Utilizing a basic and regular structural arrangement is advised.
- It is recommended to increase system redundancy for lateral load resistance.
- To prevent column failure or the construction of plastic hinges in columns, it is necessary to apply the strong column weak beam principle when designing a structure.
- Preventing foundational failure is another factor that can be used to enhance ductility.
- Unwanted brittle failures, such as shear, anchorage, and bond failures, as well as concrete compression failures, must be avoided.
- Use beneath reinforced concrete sections to enable significant rotation prior to failure.
- Finally, it is suggested to provide lateral confinement at critical locations of columns to induce increased deformations in the concrete.
Using the appropriate sections of applicable codes, such as material specifications for ductility, ductile detailing of beams, columns, and frames, and adequate detailing for reinforcements at joints, it is possible to implement the measures.
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