Assessment of Prestress Force in Bridges Using Structural Dynamic Responses under Moving Vehicles

Joint Authors

Li, Hao
Lv, Zhongrong
Liu, Jike

Source

Mathematical Problems in Engineering

Issue

Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2013-09-16

Country of Publication

Egypt

No. of Pages

9

Main Subjects

Civil Engineering

Abstract EN

This study carries out numerical simulations to identify the magnitude of prestress force in a highway bridge by making use of the dynamic responses from moving vehicular loads.

The prestressed bridges are modeled using four-node isoparametric flat shell element taking into account the transverse shearing deformation in the finite element model.

The vehicle is modeled as a multiple degrees-of-freedom system.

An approach based on dynamic response sensitivity-based finite element model updating is proposed to identify the elemental prestress force.

The identified results are obtained iteratively with the penalty function method with regularization from the measured structural dynamic responses.

A single-span prestressed Tee beam and two-span prestressed box-girder bridge are studied as two numerical examples.

The effects of road surface roughness, measurement noise, and speed of moving vehicle on the identification results are investigated.

Studies indicate that the proposed method is efficient and robust for prestress force identification.

Good identified results can be obtained from several measured acceleration responses.

American Psychological Association (APA)

Li, Hao& Lv, Zhongrong& Liu, Jike. 2013. Assessment of Prestress Force in Bridges Using Structural Dynamic Responses under Moving Vehicles. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1009391

Modern Language Association (MLA)

Li, Hao…[et al.]. Assessment of Prestress Force in Bridges Using Structural Dynamic Responses under Moving Vehicles. Mathematical Problems in Engineering No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1009391

American Medical Association (AMA)

Li, Hao& Lv, Zhongrong& Liu, Jike. Assessment of Prestress Force in Bridges Using Structural Dynamic Responses under Moving Vehicles. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1009391

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1009391