Computer Modeling - Level of Effort 1

[ash060]

Typically working on low-rise buildings (3-Story or less), I use hand calculations, spreadsheets, and Enercalc when performing calculations for design.

I have access to better analysis programs such as RISA and Ram Systems. I have noticed that these programs have the capabilities to design just about everything including masonry walls and steel joists.

I usually do not use them because it seems like using a backhoe to build a sand castle. I wanted to know at what point other engineers go from using hand calc's and spreadsheets to building a full blown computer model for their designs? Is there a big increase in efficiency to using the complete computer model for smaller building? Does anyone have a rule of thumb for switching from one analysis method to another (like a sq. ft threshold)?

Any input is welcome

 

[ash060]

Speaking of modeling, if the program does allow the design of masonry wall panels will you typically include the spandrel panel over openings as part of the design or exclude them and just have it design the piers between oppenings?