Publication detail

The Idealization of Boundary Conditions in Numerical Simulations of Prestressed Pedestrian Bridges and Comparing with Experimantal Measurments

KALA, J. HOKEŠ, F.

Original Title

The Idealization of Boundary Conditions in Numerical Simulations of Prestressed Pedestrian Bridges and Comparing with Experimantal Measurments

Type

conference paper

Language

English

Original Abstract

The topic of this paper is the description of influence of boundary conditions to natural frequencies and other dynamic parameters of lightweight prestressed pedestrian bridges. Due to current level of computer technology and capabilities of computational system ANSYS is it possible to compile one computational model for both static and dynamic analysis of structures. However, the preparation of one model for both analysis may bring difficulties. These problems are connected with level of idealization and they are caused by differences in solution methods. The paper aims to describe influence of level of prestressing to global stiffness because it is significant feature occurring in solution of natural shapes. The paper also presents frequently used simplifications of boundary conditions representing foundations of structure. The paper provide a brief description of their influence to dynamic parameters. All obtained numerical results are compared and confronted with in-situ experimental measurements that were performed on bridges in Czech Republic.

Keywords

Prestressed concrete, footbridge, finite element method, ANSYS, unbonded prestressing tendon, natural frequencies, modal shapes, boundary conditions.

Authors

KALA, J.; HOKEŠ, F.

RIV year

2015

Released

23. 6. 2015

Publisher

M C Forde

Location

Edinburgh, Scotland

ISBN

0-947644-78-4

Book

Proc of 16th European Bridge Conference

Pages from

1

Pages to

8

Pages count

8

BibTex

@inproceedings{BUT122615,
  author="Jiří {Kala} and Filip {Hokeš}",
  title="The Idealization of Boundary Conditions in Numerical Simulations of Prestressed Pedestrian Bridges and Comparing with Experimantal Measurments",
  booktitle="Proc of 16th European Bridge Conference",
  year="2015",
  pages="1--8",
  publisher="M C Forde",
  address="Edinburgh, Scotland",
  isbn="0-947644-78-4"
}