Delamination and structural response of RC thin shell in nuclear shield buildings with unanticipated construction openings

S. C. Mac Namara, M. M. Garlock, D. P. Billington

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper examines the structural response in a thin shell concrete dome with construction openings. The weight of the dome is carried in axial compression along the hoops and meridians of the dome. The openings interrupt the hoops and meridians and the dome's weight must be redistributed around the openings; resulting in zones of increased compression near the opening. In the affected areas there is a significant difference between the compression on the top surface of the dome, and that on the bottom surface. The dome was cast in two layers. This study examines the potential for fracture (and thus delamination) as a result shear stress at the interface of the two layers. The stresses are largest around the opening. The shear capacity of the interface is determined by previous empirical studies of composite beams. The shear stresses in the dome with openings are not large enough to cause delamination.

Original languageEnglish (US)
Title of host publicationProceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures
Pages939-943
Number of pages5
StatePublished - Dec 1 2007
Event6th International Conference on Fracture Mechanics of Concrete and Concrete Structures - , Italy
Duration: Jun 17 2007Jun 22 2007

Publication series

NameProceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures
Volume2

Conference

Conference6th International Conference on Fracture Mechanics of Concrete and Concrete Structures
CountryItaly
Period6/17/076/22/07

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction

Fingerprint Dive into the research topics of 'Delamination and structural response of RC thin shell in nuclear shield buildings with unanticipated construction openings'. Together they form a unique fingerprint.

  • Cite this

    Mac Namara, S. C., Garlock, M. M., & Billington, D. P. (2007). Delamination and structural response of RC thin shell in nuclear shield buildings with unanticipated construction openings. In Proceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures (pp. 939-943). (Proceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures; Vol. 2).