Design Code [Creep / Shrinkage / Elastic Modulus Function Group]

Creep / Shrinkage Function Group

[CEB-FIP(1990)]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[CEB-FIP(1978)]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[ACI]

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

Material factored ultimate value

- The user may enter the ultimate values considering concrete properties by ACI code or User type.

[PCA]

[Combined (ACI & PCA)]

Material factored ultimate creep strain / Shrinkage

- The user may enter the ultimate values considering concrete properties by User type.

[AASHTO]

Expose to drying before 5 Days of curing

- If this option is checked on, the influence of Creep & Shrinkage is increased by 20% (ref. AASHTO 5.4.2.3)

[European]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[AS 3600-2009]

Hypothetical Thickness

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[AS/RTA 5100.5-2011]

Hypothetical Thickness

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[Russian]

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

Fast – accumulating creep

- If this option is checked on, the influence of Creep & Shrinkage will be increased by % based on Russian code

[Korean Standard]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[Japanese Standard]

Notational size of member

-      Conceptual (Equivalent) size of structure. Equivalent area divided by perimeter of the member considering Environmental Coefficient.

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[Japan (JSCE)]

Cement content / Water content

- Required to input each content per unit volume to generate Creep/Shrinkage Function automatically

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[Chinese Standard]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member considering Environmental coefficient

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[China (JTG D62-2004)]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member.

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[KCI-USD 12]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

[KSCE 2010]

Notational size of member

-      Conceptual (Equivalent) size of structure. Two times of equivalent area divided by perimeter of the member

Age of concrete at the beginning of shrinkage

-      The number of days elapsed after pouring of concrete, when the shrinkage is assumed to start

Elastic Modulus Function Group

[CEB-FIP(1990)]

Specify the Concrete Compressive Strength at 28 Days and Cement Type

RS – Rapid hardening high strength cements

N,R – Normal or rapid hardening cements

SL – Slowly hardening cements

[CEB-FIP(1978)]

[ACI]

 Modulus of elasticity, which will be reflected in the analysis, is calculated using the compressive strength of concrete and weight density

[Ohzagi]

The equation proposed by Ohzagi is used to define the change of compressive strength of concrete. Specify the Concrete Compressive Strength at 28 Days and Cement Type

RS – Rapid hardening high strength cements

N,R – Normal or rapid hardening cements

SL – Slowly hardening cements

Fly ash – Fly ash cementing material

[European]

Specify the Concrete Compressive Strength at 28 Days and Cement Type

RS – Rapid hardening high strength cements

N,R – Normal or rapid hardening cements

SL – Slowly hardening cements

[AS 3600-2009] / [AS/RTA 5100.5-2011]

Mean modulus of elasticity of concrete at the appropriate age is calculated as follows.

Since there is no equation for Compressive Strength at the appropriate age in Australian Standard, it is calculated based on the following equation specified in CEB-FIP 1978.

[Russian]

[Korean Standard]

 Specify the Concrete Compressive Strength at 91 Days and Strength Factor (a,b)

[Japan (Hydration)]

Specify the Concrete Compressive Strength at 28 Days and Strength Factor (a,b,d)

[Japan (Elastic)]

[KCI-USD12]

Specify the Concrete Compressive Strength at 91 Days and Strength Factor (a,b)

N,R – Normal or rapid hardening cements

RS – Rapid hardening high strength cements

SL –  Slowly hardening cements