Fast and Optimized Calculation of the Cable Pretension Forces in Arch Bridges With Suspended Deck

Fast and Optimized Calculation of the Cable Pretension Forces in Arch Bridges With Suspended Deck

This paper presents with an effective and fast approach to the optimization of the pretension forces in arched bridges with suspended deck, which makes use of the influence matrix method (IMM). The given cable-tensioning procedure leads to a linear system of equations with a reduced number of unknow...

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Bibliographic Details
Main Authors: Mariano Modano, Arnas Majumder, Filipe Santos, Raimondo Luciano, Fernando Fraternali
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-07-01
Series:Frontiers in Built Environment
Subjects:
arch bridges
pretension
target bending moment distribution
influence matrix
Nielsen bridge
Online Access:https://www.frontiersin.org/article/10.3389/fbuil.2020.00114/full
Description
Summary:This paper presents with an effective and fast approach to the optimization of the pretension forces in arched bridges with suspended deck, which makes use of the influence matrix method (IMM). The given cable-tensioning procedure leads to a linear system of equations with a reduced number of unknowns and can be effectively implemented within active control procedures that handle time-varying loading conditions. This method produces a target bending moment distribution (TBMD) over the structure, which significantly mitigates the state of stress of the deck. Numerical simulations referred to a Nielsen arch bridge illustrate the versatility of the proposed approach when dealing with different loading conditions.
ISSN:2297-3362

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