Random Seismic Response Analysis of Leaning-Type Arch Bridge
With an example of steel pipe concrete leaning-type arch bridge, space truss system Finite Element Analysis model is constructed using the Ruiz-Penzien random seismic vibration power spectrum model. The impact of inclined arch rib angle and the number of cross brace between main and stable arch ribs on the seismic internal force response under lateral random seismic excitation is also studied in this research. Research finding shows, the in-plane bending moment of main arch rib gradually increases with increasing stable arch rib angle and cross brace, whereas the out-of-plane bending moment and axial force display a decreasing trend. In general, this indicates that increasing stable arch rib angle and number of cross brace improves the lateral aseismatic performance of leaning-type arch bridge.
Brendan Gan, Yu Gan and Y. Yu
Y. H. Li et al., "Random Seismic Response Analysis of Leaning-Type Arch Bridge", Advanced Materials Research, Vols. 378-379, pp. 332-336, 2012