STAAD.Pro - Analysis Capabilities

Static, P-Delta, Non-Linear Analyses

Linear, P-Delta analysis
Non-linear analysis with automatic load and stiffness correction
Multiple analysis in same run
True curvilinear beams (not piecewise linear)
Plate elements contain extra “drilling” degree of freedom
Tapered tubular cross-sections such as hexagonal, octagonal, etc. (excellent for poles)
Unidirectional support (compression-only/tension-only supports) for generation of soil springs
Master/slave capabilities
I-beam warping end restraint added as an option for torsional stiffness
Buckling analysis
Plate elements consider inclined supports
Member and spring specification
Fixed, pinned and spring supports with releases. Also Inclined Supports
Automatic spring support generator for mat foundations
Active/Inactive members for load-dependent structures
Compression-only and tension-only members, multi-linear (non-linear) spring supports
CIMSTEEL interface
3D beam stress manager for calculation of combined stresses on a member
Member tension command can be used with IBC/UBC load generator
Determine stresses and forces along any cut line through a group of plates by cutting with a plane
Elbows (curved beams with pipe sections) can be modeled with an internal pressure
Multi-linear spring curves can be assigned to elastic or plate mats
Beam, truss, tapered beam, shell/plate bending/plane stress and 8-noded solid elements
Full and partial moment releases (excellent for steeel frames where releases defined by springs are hard to determine)
Nonlinear cable members for cables
P-Delta analysis enabled for plates
New automated bridge loader to calculate 3D influence surfaces, traffic lanes, critical vehicle loading positions, etc. (optional)
Influence area reported for spring supports for elastic mats
Warnings for “load losses” due to poorly defined beam releases
Enhanced solid stress contour definition for brick elements

Dynamic Analysis

UBC 94, 97 and IBC 2000 and IBC 2003 supported
Calculation of maximum base shear for time history loading
Scale factors for ground acceleration for time history loading
Response Spectrum
Time History Analysis with blast loading and multiple arrival times for multiple vibrational sources
Harmonic Load Generator
Combination of Dynamic Forces with Static Loading for subsequent Design
Missing mass for response spectrum load cases
Logarithmic interpolation for spectra
Modal damping for time history and spectrum
Composite damping to specify damping ratio for each member/element
Base shear calculation includes direction factors
Extraction of Frequency and Mode Shapes
Modal Damping Ratio for Individual Modes
Generate floor spectra from time history