Structural Evaluation on Pedestrian Bridge Constructed of Truss Structure and Castellated Beam

Abstract

A pedestrian bridge is a structure linking a pedestrian or bike path over or around a major roadway, railway, or waterway. The truss bridge (TRB) and the bridge with a castellated beam (CBB) are the common models of the pedestrian bridge. Past studies have revealed the structural behavior of TRB and CBB, but the performances of both bridges have not yet been comparatively confirmed. This study examined the TRB and CBB structural performances to obtain the better bridge model due to applied loading. The research was started by establishing the bridge models and employing the load combinations. The analysis resulted in the internal forces and they were used to design the bridges. The design is referred to as the SNI-1729-2020. This research revealed that the TRB exhibited structural performances, i.e., deflection and internal force, better than those of the CBB. Nevertheless, due to the many steel members, the TRB presented a heavier bridge than the CBB.

Structural Performance of Single and Double-Section CBF Braces with Different Lengths Under Cyclic Loading

“…Babaei and Zarfam [16] applied Shape Memory Alloys (SMA), which have super elastic and high damping characteristics, as the brace component to enhance CBF's performance. Panjaitan et al [17] studied three specimens of CBF braces, i.e., single braces (BR1), double braces with batten plates (BR2), and double braces with lacing (BR3). Research disclosed that enlarging the brace sections (BR2 and BR3) significantly increased the dissipation energy compared to that of BR1.…”