Revision of Ver.7.4.1

Design Code

Function

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.

Call

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

Entry

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

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

Revision of Ver.7.4.1

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).

: Enter the selection and close the dialog box.