ANALYSIS OF COMPOSITE STRAIGHT AND CURVED BRIDGE DECKS WITH INTERMEDIATE DIAPHRAGMS & ASSESSMENT OF BRIDGE DESIGN SPECIFICATIONS

Ioannis Tsiptsis, O. E. Sapountzaki

Research output: Contribution to conferenceAbstractScientificpeer-review

Abstract

In order to prevent distortion of box-shaped thin-walled, composite or non-, beams, which significantly weakens their overall stiffness, intermediate diaphragms are usually employed. Specific modelling methodologies have not yet been suggested in order to account for distortional effects. This research effort focuses on the study of different diaphragmatic arrangements of a thin-walled curved beam of arbitrary cross section and general loading taking into account the complete coupling of torsion, warping and distortion. The Boundary Element Method-BEM is employed for the cross sectional analysis of the curved beam. The geometric constants are calculated and employed in the analysis of the beam. The unknown kinematical components are obtained by solving a set of boundary value problems using either the Analog Equation Method- AEM or the Finite Element Method-FEM. Examples of curved beam models with various arrangements of intermediate diaphragms and materials are presented to provide suggestions on the guidelines for the maximum spacing of diaphragms.
Original languageEnglish
Publication statusPublished - 24 Jul 2018
MoE publication typeNot Eligible
EventInternational Conference on Thin-Walled Structures - Lisbon, Portugal
Duration: 24 Jul 201827 Jul 2018
Conference number: 8

Conference

ConferenceInternational Conference on Thin-Walled Structures
Abbreviated titleICTWS
CountryPortugal
CityLisbon
Period24/07/201827/07/2018

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