What are the key considerations in analyzing cable-stayed bridge structures?

Cable-stayed bridge analysis involves: (1) Nonlinear cable behavior - cables sag under self-weight, effective modulus varies with stress (Ernst formula), (2) Large displacement effects requiring geometric nonlinear analysis, (3) Sequential construction analysis as cables are stressed, (4) Aerodynamic stability against flutter and vortex shedding, (5) Cable-deck interaction and load distribution among cables, (6) Temperature effects on cable forces. Analysis typically uses form-finding for initial geometry, staged construction analysis, and time-history analysis for seismic and wind.