Probabilistic criteria for lateral dynamic stability of bridges under crowd loading

M. Bocian; J. H. G. Macdonald; J. F. Burn

doi:10.1016/j.compstruc.2014.02.003

Probabilistic criteria for lateral dynamic stability of bridges under crowd loading

M. Bocian^*, J. H. G. Macdonald, J. F. Burn

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

23 Citations (Scopus)

Abstract

Probabilistic conditions for lateral stability of bridges are proposed, based on output from the inverted pendulum pedestrian model from the field of biomechanics. Statistical variations of the parameters defining the model are studied based on real statistical data of the English population. Variability of the self-excited forces is quantified for crowds of different velocities and critical conditions are identified for bridge natural frequencies below 5 Hz. Allowance is made for the influence of the bridge mode shape and number of pedestrians in the crowd and their spatial distribution. This allows realistic worst case conditions among different loading scenarios for a particular structure to be found. (C) 2014 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	108-119
Number of pages	12
Journal	Computers and Structures
Volume	136
DOIs	https://doi.org/10.1016/j.compstruc.2014.02.003
Publication status	Published - May 2014

Keywords

Bridges
Human-structure interaction
Biomechanics
Inverted pendulum model
Lateral vibrations
Dynamic instability
INDUCED VIBRATION
FOOTBRIDGES
EXCITATION
WALKING
BALANCE
FORCES
MODEL

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10.1016/j.compstruc.2014.02.003

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AEROELASTIC AND NON-LINEAR STRUCTURAL DYNAMIC INTERACTIONS OF SLENDER STRUCTURES
Macdonald, J. H. G.
1/08/06 → 1/08/11
Project: Research

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@article{67ff7acd84904925bcd764d2d20dd4ff,

title = "Probabilistic criteria for lateral dynamic stability of bridges under crowd loading",

abstract = "Probabilistic conditions for lateral stability of bridges are proposed, based on output from the inverted pendulum pedestrian model from the field of biomechanics. Statistical variations of the parameters defining the model are studied based on real statistical data of the English population. Variability of the self-excited forces is quantified for crowds of different velocities and critical conditions are identified for bridge natural frequencies below 5 Hz. Allowance is made for the influence of the bridge mode shape and number of pedestrians in the crowd and their spatial distribution. This allows realistic worst case conditions among different loading scenarios for a particular structure to be found. (C) 2014 Elsevier Ltd. All rights reserved.",

keywords = "Bridges, Human-structure interaction, Biomechanics, Inverted pendulum model, Lateral vibrations, Dynamic instability, INDUCED VIBRATION, FOOTBRIDGES, EXCITATION, WALKING, BALANCE, FORCES, MODEL",

author = "M. Bocian and Macdonald, {J. H. G.} and Burn, {J. F.}",

year = "2014",

month = may,

doi = "10.1016/j.compstruc.2014.02.003",

language = "English",

volume = "136",

pages = "108--119",

journal = "Computers and Structures",

issn = "0045-7949",

publisher = "Elsevier",

}

TY - JOUR

T1 - Probabilistic criteria for lateral dynamic stability of bridges under crowd loading

AU - Bocian, M.

AU - Macdonald, J. H. G.

AU - Burn, J. F.

PY - 2014/5

Y1 - 2014/5

N2 - Probabilistic conditions for lateral stability of bridges are proposed, based on output from the inverted pendulum pedestrian model from the field of biomechanics. Statistical variations of the parameters defining the model are studied based on real statistical data of the English population. Variability of the self-excited forces is quantified for crowds of different velocities and critical conditions are identified for bridge natural frequencies below 5 Hz. Allowance is made for the influence of the bridge mode shape and number of pedestrians in the crowd and their spatial distribution. This allows realistic worst case conditions among different loading scenarios for a particular structure to be found. (C) 2014 Elsevier Ltd. All rights reserved.

AB - Probabilistic conditions for lateral stability of bridges are proposed, based on output from the inverted pendulum pedestrian model from the field of biomechanics. Statistical variations of the parameters defining the model are studied based on real statistical data of the English population. Variability of the self-excited forces is quantified for crowds of different velocities and critical conditions are identified for bridge natural frequencies below 5 Hz. Allowance is made for the influence of the bridge mode shape and number of pedestrians in the crowd and their spatial distribution. This allows realistic worst case conditions among different loading scenarios for a particular structure to be found. (C) 2014 Elsevier Ltd. All rights reserved.

KW - Bridges

KW - Human-structure interaction

KW - Biomechanics

KW - Inverted pendulum model

KW - Lateral vibrations

KW - Dynamic instability

KW - INDUCED VIBRATION

KW - FOOTBRIDGES

KW - EXCITATION

KW - WALKING

KW - BALANCE

KW - FORCES

KW - MODEL

U2 - 10.1016/j.compstruc.2014.02.003

DO - 10.1016/j.compstruc.2014.02.003

M3 - Article (Academic Journal)

VL - 136

SP - 108

EP - 119

JO - Computers and Structures

JF - Computers and Structures

SN - 0045-7949

ER -

Probabilistic criteria for lateral dynamic stability of bridges under crowd loading

Abstract

Keywords

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AEROELASTIC AND NON-LINEAR STRUCTURAL DYNAMIC INTERACTIONS OF SLENDER STRUCTURES

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