RHS RELEASE HISTORY

Version 3.0.1

Issue Date        01/2006

Section properties of RHS 250x100x12.5 amended.

Version 3

Issue Date        4/2003

Move to VB6 – Windows 2000 look and feel

Disclaimer and prog. info. added

Help style modified to align with rest of family

Version 2

Issue Date        3/99

Include PC units (all construction types), additional pt. loads + add. udl's

Pattern loading factors: 1.0 & 1.4

Output connection forces

Allow user to explicitly define screeds

Longitudinal shear + vibration now failure criteria

Min. weld size 6mm (8mm for PC construction), with a maximum of 10mm)

Effective concrete section for composite elastic + plastic properties revised

Account for reduced buckling cap. due to trans. bending of the btm. plt for LTB

Moment-shear interaction only when max. shear > 50% shear capacity

Fire design extended to cover PC units

Allow flange plate projection on cladding side of between 0 and 150 mm

Allow flange plate projection on slab side of between 90 and 150 mm

Display message showing range of standards wide flats

Update help file to include SD225 and other mods.

Consider load concentration for flange plate bending

Limit vertical shear capacity to 50% of 0.6Avpy due to the effect of torsion.

Steel grades to new "S" notation.

Version 1

Issue Date        6/97

Windows version

SD 225 span limit increased to 9.0m