Paper Title:
Boundary Condition Updating of Bridge Structure Based on Mode Parameters
  Abstract

According to the complex boundary condition of real bridge structure, appendix restraint parameters of structure boundary condition were detailed analyzed. The appendix horizontal and torsional restraint parameters were selected as research object. The least square constrained optimization inversion method was used to establish the question of reverse of bridge structure boundary appendix parameters based on tested and calculated mode parameters. The first order perturbation of eigen-value and eigen-vector based on matrix perturbation theory were substituted into the constrained optimization inversion equation, so the solving efficiency was improved greatly, and the iteration method was used to improve the precision. The corresponding program was made, and the example of a maglev railway girder shows that fairly well precise bridge structure boundary appendix parameters can be reserved with only former several modes parameters through four to seven times of iteration calculation.

  Info
Periodical
Advanced Materials Research (Volumes 163-167)
Edited by
Lijuan Li
Pages
3749-3756
DOI
10.4028/www.scientific.net/AMR.163-167.3749
Citation
Z. Shi, R. D. Zhao, S. Q. Qin, Y. F. Gao, "Boundary Condition Updating of Bridge Structure Based on Mode Parameters", Advanced Materials Research, Vols. 163-167, pp. 3749-3756, 2011
Online since
December 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Muhammad Ilyas Khan, Shu Yuan Ma
Chapter 21: Machining Tools, Testing Technologies and Error Measurement
Abstract:Measurement of geometrical tolerances is one of the prime processes in manufacturing for ensuring the quality of the machined components....
2232
Authors: Jozef Kačur, Jozef Minár
Chapter VI
Abstract:In this paper we present a method for the determination of the hydraulic permeability for flow in partially saturated porous media. The...
105