Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Serviceability of segmental concrete arch-frame bridges built by cantilevering
The evaluation of the safety degree in service life for a segmental prestressed concrete bridge built by the cantilever method, presents different aspects related to strength, deformability, durability and to effects of time-dependent phenomena as creep and shrinkage. The case-study of a prestressed concrete frame bridge with inclined piers is presented, built by cantilevering, with precast segments. By considering the fundamental items of design and construction stages, the implications due to the arch effect in this static scheme are investigated, with respect to an equivalent bridge with a final scheme of continuous girder on vertical piers. The birth of a significant value of axial force in the main span is considered and the stress redistribution in time due to the effects of creep on the static scheme change during construction is analysed. The main parameters involved are underlined and results in terms of serviceability and ultimate limit state are obtained. Finally aspects related to durability are considered and analysed in the presented case-study.
Serviceability of segmental concrete arch-frame bridges built by cantilevering
The evaluation of the safety degree in service life for a segmental prestressed concrete bridge built by the cantilever method, presents different aspects related to strength, deformability, durability and to effects of time-dependent phenomena as creep and shrinkage. The case-study of a prestressed concrete frame bridge with inclined piers is presented, built by cantilevering, with precast segments. By considering the fundamental items of design and construction stages, the implications due to the arch effect in this static scheme are investigated, with respect to an equivalent bridge with a final scheme of continuous girder on vertical piers. The birth of a significant value of axial force in the main span is considered and the stress redistribution in time due to the effects of creep on the static scheme change during construction is analysed. The main parameters involved are underlined and results in terms of serviceability and ultimate limit state are obtained. Finally aspects related to durability are considered and analysed in the presented case-study.
Serviceability of segmental concrete arch-frame bridges built by cantilevering
Bridge Structures ; 9 ; 21-36
01.01.2013
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Serviceability of segmental concrete arch-frame bridges built by cantilevering
| Online Contents | 2013
| TIBKAT | 1989
Serviceability of masonry arch railway bridges
| British Library Conference Proceedings | 2007
Canadian, U.S. contractors built New Soo Bridge by cantilevering
Engineering Index Backfile | 1962