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Strength assessment of prestressed concrete sections under the combined action of internal forces

 Strength assessment of prestressed concrete sections under the combined action of internal forces
Autor(en): , , ,
Beitrag für IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, veröffentlicht in , S. 750-757
DOI: 10.2749/prague.2022.0750
Preis: € 25,00 inkl. MwSt. als PDF-Dokument  
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Nowadays a bridge design tool has to integrate all operations in the design process, such as architectural modeling, construction planning and management, structural analysis, member design, and de...
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Bibliografische Angaben

Autor(en): (ALLPLAN Česko s.r.o., Infrastructure Team, Brno, Czech Republic)
(ALLPLAN Česko s.r.o., Infrastructure Team, Brno, Czech Republic)
(ALLPLAN Česko s.r.o., Infrastructure Team, Brno, Czech Republic)
(ALLPLAN Software Engineering GmbH, Competence Center Allplan Infrastructure, Graz, Austria)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Veröffentlicht in:
Seite(n): 750-757 Anzahl der Seiten (im PDF): 8
Seite(n): 750-757
Anzahl der Seiten (im PDF): 8
DOI: 10.2749/prague.2022.0750
Abstrakt:

Nowadays a bridge design tool has to integrate all operations in the design process, such as architectural modeling, construction planning and management, structural analysis, member design, and detailing. An essential part of the member design is the assessment and proof of the safety of prestressed concrete sections based on national standards. Prestressed and reinforced concrete elements resist tensile and shear forces, bending, and torsional moments. The actions are coupled, and cracks occur due to tensile stresses. This results in a non-linear response of cross- sections. The complexity of the problem is multiplied by the arbitrary shape of the bridge sections. The objective of the paper is to describe a general method for the assessment of the resistance of reinforced and prestressed concrete cross-sections subjected to a coupled action of internal forces. The assumptions of the models adopted in the currently valid EN and AASHTO codes are analyzed, appropriate numerical methods are developed, and the resulting values of strength and response of the sections are compared for several examples.

Stichwörter:
Entwurf Beton Brücke Norm Bewehrung Vorspannung
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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