Response of structures to bidirectional seismic loading: Research progress and future directions

R Roy, A Acharjya, A Roy, A Santra… - Journal of Structural …, 2022 - ascelibrary.org
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 …

Influence of seismic incident angle on response uncertainty and structural performance of tall asymmetric structure

Z Alam, C Zhang, B Samali - The structural design of tall and …, 2020 - Wiley Online Library
The estimation of critical seismic response of a structure is complicated in nature due to the
uncertain distribution of the internal forces under multidirectional seismic excitations. One of …

Combination rules used to account for orthogonal seismic effects: State-of-the-art review

J Wang, HV Burton, K Dai - Journal of Structural Engineering, 2019 - ascelibrary.org
During an earthquake, buildings are simultaneously excited by multiple (horizontal and
vertical) ground motion components. In the design process, the combinatorial effects of …

Fragility analysis of rectangular and circular reinforced concrete columns under bidirectional multiple excitations

MR Salami, EA Dizaj, MM Kashani - Engineering Structures, 2021 - Elsevier
This paper presents a numerical investigation on seismic performance of reinforced
concrete (RC) cantilever columns under unidirectional and bidirectional excitations. The …

Estimating seismic response to bidirectional excitation per unidirectional analysis: A reevaluation for motions with fling-step using SDOF systems

A Acharjya, R Roy - Soil Dynamics and Earthquake Engineering, 2023 - Elsevier
Within the context of near-fault motions with fling-step signature, the present paper
reevaluates the applicability of a straightforward alternative to estimate the response to …

Directionality effect in the seismic fragility of long-span supporting frames in ultrahigh-voltage substation

J Gong, X Zhi, Y Shao, K Dai, J Zhong - Soil Dynamics and Earthquake …, 2022 - Elsevier
A 1000 kV outgoing line frame (OLF1000), which is an important and long-span supporting
frame in ultrahigh-voltage substations (UHVSs), is prone to damage or collapse under …

Estimating response of structures to earthquake-induced tsunami: a simple approach per unidirectional analysis

M Naskar, SS Mayengbam, R Roy - Structures, 2024 - Elsevier
The orientation of a structure with respect to the direction of propagation of tsunami wave
may often be arbitrary. As such, it may be convenient to consider the tsunami wave as a …

Bond-slip at anchorage under unidirectional and bidirectional seismic excitation: Search for an efficient mathematical model

A Santra, R Roy - Structures, 2023 - Elsevier
Reinforcement anchorage slip can significantly contribute to the seismic response of bridge
columns, especially to residual deformation. For a reliable numerical model of slip action …

Assessing residual deformation of bridge piers under bidirectional near-fault motions with forward directivity and fling-step

A Santra, R Roy - Bulletin of Earthquake Engineering, 2023 - Springer
A reasonable estimate of residual deformation is crucial for assessing a structure's post-
earthquake performance, safety, and serviceability. Residual deformation may be significant …

Seismic safety of RC piers with parameter uncertainties: Assessing dimensionless response using Bayesian linear regression

R Roy, A Santra - Structural Safety, 2024 - Elsevier
Both maximum and residual deformations are essential for seismic safety during and
following strong earthquakes, especially in the near field. These parameters are often …