Evaluation and improvement of calculation methods for large-scale concrete structures in service limit states

Reignard Tan, Max Hendriks, Mette Geiker, Dan Evert Brekke, Terje Kanstad

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Concrete structures shall be designed and constructed to limit cracking and crack widths for durability, functionality and aesthetic reasons. Current design methods and requirements are, however, only in a limited manner verified for large-scale concrete structures and long service life, as well as for new binder and concrete types. To facilitate an improved design basis for large-scale reinforced concrete structures, the present project on evaluation and improvement of calculation methods for large-scale concrete structures in Service Limit State has been initiated. Initially, the occurrence of shear cracks and excessive deformations in concrete cantilever bridges has been investigated. A calculation model based on the Modified Compression Field Theory was established under the assumption that creep in principal compression direction may cause the occurrence of diagonal shear cracks in webs of the cross section. In a shear cracked state, the shear stiffness will be significantly reduced, which further results in increase of shear deformations. The calculation model was applied to, and verified on a real segmentally cast cantilever bridge: the Sålåsund Bridge with main span L = 120 m, where this type of cracking was observed.

Original languageEnglish
Title of host publicationProceedings of the 11th fib International PhD Symposium in Civil Engineering, FIB 2016
PublisherCRC Press / Balkema - Taylor & Francis Group
Pages165-172
Number of pages8
ISBN (Electronic)9784990914806
Publication statusPublished - 2016
Event11th fib International PhD Symposium in Civil Engineering, FIB 2016 - Tokyo, Japan
Duration: 29 Aug 201631 Aug 2016

Conference

Conference11th fib International PhD Symposium in Civil Engineering, FIB 2016
CountryJapan
CityTokyo
Period29/08/1631/08/16

Fingerprint Dive into the research topics of 'Evaluation and improvement of calculation methods for large-scale concrete structures in service limit states'. Together they form a unique fingerprint.

Cite this