Frequently Asked Questions:

Page 1 / 2 / 3 / Examples / Computer Errors    In retrofitting projects, which kind of shear walls selected, panel or column type? If you are adding the wall between existing columns, you can check these criterias: The existing columns; If their concrede quality is higher than C14, If the bar percentage is higher than 1%, If the stirrups are dense, If its area is at least 10% of the shear wall, satisfies these criterias, panel member between the columns can be defined. If not, rectangle column members must be entered to form shear wall ends. Note that every panel member must have column member on its ends.

How will I adjust the meterial types in retrofitting projects? In Sta4CAD, you can work up to 9 different meterials in a project. E1 material is reserved for new members only. This type of members will be designed. E2~E9 are used for old members, they will be excluded in design, just some checks will be done.    Can slant or circular beams and slabs be used in Sta4CAD? Yes, they can be used. Also their drawings will be automatically generated.    There is a door gap at the bottom of the shear wall, can I model it in Sta4CAD? The most forced section of the earthquake shear walls are their bottom, so it is not reccomended to put gaps on them. If needed, the wall can be modelled with panel members which can be divided into finite elements. Note that every panel member must have column member on its ends.    I can not satisfy the beam-column connection check in highly ductile buildings? You must increase the effective shear area by connecting the beams from the center or put more walls to decrease the moments and the beam bars.

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