Determine the applicable design code and the applicability of special
provisions for seismic design for the design of or the strength verification
for RC members.
From the Main
Menu select Design
> Concrete Design Parameter > Design Code
From the Menu
tab of
the
Tree Menu select Design
> Concrete Design Parameter > Design Code
The following dialog box is used to enter the data:
Concrete
Design Code dialog box
Design Code
RC design code (refer to Note 1)
Apply Special Provisions
for Seismic Design
Option to apply the special provisions for
seismic design
: Enter the selection
and close the dialog box.
: Do not enter the selection
and close the dialog box.
Select Frame Type
Apply different Scale up Factor for Shear
for each seismic zone (This is applicable for ACI318-89, 95, 99, 02,05).
Special
Moment Frames: Moment frame in strong-motion seismic zone
Intermediate
Moment Frames: Moment frame in intermediate-motion seismic zone
Ordinary
Moment Frames: Moment frame in weak-motion seismic zone
Shear for Design
Apply Scale up Factor for Shear as per special
provisions for seismic design.
: Apply Scale up Factor for
Shear as per a relevant code.
R*Vc(a1*SUM(Mpr)/L>max(Ve1,Ve2)/2)
R: ACI318-05
Clause 21.3.4.2 indicates that " Transverse reinforcement shall be
proportioned to resist shear assuming Vc=o when ...". In midas, even
though such conditions occur, the user can include a part of shear strength
of concrete as well as shear reinforcement.
Method:
Select a method to apply Scale up Factor for Shear.
Max(Ve1,
Ve2): Use the larger of the shear forces to which Scale up Factors
for Shear (a1, a2) will have been applied.
Min(Ve
1, Ve 2): Use the lesser of the shear forces to which Scale up
Factors for Shear (a1, a2) will have been applied.
Ve 1:
Select to apply Scale up Factor for Shear (a1).
Ve 2:
Select to apply Scale up Factor for Shear (a2).
Revision of Ver.7.6.1
Note 1
If
the user omits the design code, the Concrete Structure Design Code of
the European Standard (Eurocode2:04) is applied by default. The
available RC design codes are as follows:
Design Code
: Enter the selection
and close the dialog box.
: Do not enter the selection
and close the dialog box.
: Apply Scale up Factor for
Shear as per a relevant code.
Revision of Ver.7.6.1
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