Hello,
I noticed that some posts indicate that people have had problems with changing the gravity axis from Y to Z. I wanted to know if the problem has been rectified in the V8i SS5 version of the program.
I have a project, which requires me to use the Z axis as the gravity axis, and I wanted to confirm, if there are issues with STAAD, having to deal with it. Below is a link of the post, where I read about this problem.
https://communities.bentley.com/products/structural/structural_analysis___design/f/5932/p/74700/200667.aspx#200667
Hi PS_CEC,
Here's the extract from Technical Reference Manual chapter 5.5 Set Command Specification about the Z up option:
By default, the Y-axis is the vertical axis. However, the SET Z UP command may be used to model situations where Z-axis represents the vertical axis (direction of gravity load) of the structure. This situation may arise if the input geometry is created through some CAD software. This command will affect the default BETA angle specification. However, BETA can be set to a certain value for all members parallel to a particular global axis by using the MEMBER X (or Y or Z) type of listing. For additional information, see the CONSTANTs specification (Section 5.26).
The SET Z UP Command directly influences the values of the following input:
a.JOINT COORDINATE
b.Input for the PERFORM ROTATION Command
c.BETA ANGLE
The following features of STAAD cannot be used with the SET Z UP command:
Automatic Generation of Spring Supports for Mat Foundations
Regards,
Andrej