Rigorous assessment of structural response to seismic excitation poses challenges for
researchers in their bid to account for the effects of (1) biaxial interaction; and (2) incidence …

Columns are considered to be critical members of moment-resisting structural systems. In
seismically active regions, it is important to improve the ductile deformation capacity and …

Bridges play a significant role in postevent recovery and disaster resiliency of communities.
Recent megadisasters, such as the 2011 Great East Japan Earthquake, have prompted the …

LRFD Seismic Analysis and Design of Bridges Reference Manual Page 1 US Department of
Transportation Publication No. FHWA-NHI-15-004 Federal Highway Administration October …

Multi-spiral rectangular column is composed of two central interlocking large spirals that are
interlocked with four small spirals in the corners to match a rectangular cross-section …

Three methods to estimate the expected maximum moment of multi-spiral columns were
investigated. The methods include the ACI 318 method, the AASHTO 1.3 M n method and a …

A quarter scale model of a two-span RC bridge was tested using the Network for Earthquake
Engineering Simulation (NEES) multiple shake table system at the University of Nevada …

This study investigates the behavior of transversely reinforced oblong and rectangular
bridge columns under combined axial and flexural loading, including eccentric compression …

Abstract The California Department of Transportation (Caltrans) code provides the only
guidelines in the US for the design of columns with interlocking spirals. Previous studies …

An innovative seven-spiral transverse reinforcement is proposed for oblong reinforced
concrete bridge columns. Compared to conventional single-spiral or two-spiral transverse …