6.1. Creep Modeling Approaches

Try these first

1. 1.

   Define creep in concrete.

   Hint

   Think about how concrete can deform over time under a constant load.

2. 2.

   What does the Maxwell Model illustrate?

   Hint

   Consider how both immediate and delayed responses to stress are represented.

3. 3.

   What does the term 'creep' refer to in concrete?

   • Instant deformation
   • Time-dependent deformation
   • Elastic deformation

   Hint

   Think about how lasting pressure affects materials.

4. 4.

   True or False: The Burger's Model combines the principles of the Maxwell and Kelvin-Voigt models.

   • True
   • False

   Hint

   Remember the overlapping concepts of these models.

5. 5.

   A concrete structure experiences a constant load of 50 MPa. If the creep compliance at 10 years is found to be J(10, 0) = 0.015, calculate the expected total strain after 10 years.

   Hint

   Remember to use the formula for total strain.

6. 6.

   Compare the applicability of the Maxwell and Kelvin-Voigt models for short-term versus long-term predictions of concrete behavior and provide examples of when each would be most applicable.

   Hint

   Think about time frames and responses to loads.