Design Code – MIDAS Support

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

Creep / Shrinkage Function Group	Elastic Modulus Function Group
CEB-FIP(1990)	CEB-FIP(1990)
CEB-FIP(1978)	CEB-FIP(1978)
ACI	ACI
PCA	Chzagi
Combined (ACI & PCA)	European
AASHTO	AS 3600-2009
European	AS / RTA 5100.5-2011
AS 3600-2009	Russian
AS / RTA 5100.5-2011	Korean Standard
Russian	Japan (Hydration)
Korean Standard	Japan (Elastic)
JAPAN	KCI-USD 12
JAPAN (JSCE)
CHINA
China (JTG D62-2004)
KCI-USD12
KSCE 2010

Creep / Shrinkage Function Group

[CEB-FIP(1990)]

03._Design_Code_CEB-FIP(1990).png

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)]

04._Design_Code_CEB-FIP(1978).png

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]

05._Design_Code_ACI.png

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]

06._Design_Code_PCA.png

[Combined (ACI & PCA)]

07._Design_Code_Combined_(ACI___PCA).png

Material factored ultimate creep strain / Shrinkage

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

[AASHTO]

08._Design_Code_AASHTO.png

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]

09._Design_Code_European.png

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]

10._Design_Code_AS_3600-2009.png

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]

11._Design_Code_ASRTA_5100.5-2011.png

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]

12._Design_Code_Russian.png

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]

13._Design_Code_Korean_Standard.png

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]

14._Design_Code_Japanese_Standard.png

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)]

15._Design_Code_Japan_(JSCE).png

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]

16._Design_Code_Chinese_Standard.png

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)]

17._Design_Code_China_(JTG_D62-2004).png

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]

18._Design_Code_KCI-USD_12.png

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]

19._Design_Code_KSCE_2010.png

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)]

20._Design_Code_CEB-FIP(1990).png

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)]

21._Design_Code_CEB-FIP(1978).png

[ACI]

22._Design_Code_ACI.png

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

[Ohzagi]

23._Design_Code_Ohzagi.png

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]

24._Design_Code_European.png

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]

25._Design_Code_AS_3600-2009.png 26._Design_Code_ASRTA_5100.5-2011.png

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.