publication . Article . 2013

MODAL DIRECT DISPLACEMENT-BASED DESIGN METHODOLOGY FOR BRIDGES

Andreas J. Kappos; Konstantinos I. Gkatzogias; Ioannis G. Gidaris;
Open Access English
  • Published: 01 Apr 2013
  • Country: United Kingdom
Abstract
An improvement is suggested to the direct displacement-based design (DDBD) procedure for bridges to account for higher mode effects, the key idea being not only the proper prediction of a target-displacement profile through the effective mode shape (EMS) method (wherein all significant modes are considered), but also the proper definition of the corresponding peak structural response. The proposed methodology is then applied to an actual concrete bridge wherein the different pier heights and the unrestrained transverse displacement at the abutments result in an increased contribution of the second mode. A comparison between the extended and the 'standard' DDBD i...
Subjects
free text keywords: TA, Geotechnical Engineering and Engineering Geology, Earth and Planetary Sciences (miscellaneous), Structural engineering, business.industry, business, Nonlinear system, Engineering, Torsion (mechanics), Software, Abutment, Deck, Normal mode, Pier, Transverse plane
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publication . Article . 2013

MODAL DIRECT DISPLACEMENT-BASED DESIGN METHODOLOGY FOR BRIDGES

Andreas J. Kappos; Konstantinos I. Gkatzogias; Ioannis G. Gidaris;