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Influence on crack development in concrete structures from imposed strains and varying boundary conditions

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Author

Summary, in English

Crack development due to imposed strains in different types of concrete structures and with varying boundary conditions is studied in order to improve control of cracking. A previously developed two-dimensional FE-method is used, with closing forces in cracks concentrated to spring elements. Temperature changes are used as load, and the calculations are performed stepwise with opening of nodes and implementation of spring elements. The FE-method has also been used to study crack widths and crack spacing for a wall fully restrained at the bottom. It is shown that the type of restraint has significant influence on crack widths. For structures with restraint along the length direction the restraint effectively facilitates distribution of cracking, similar to a wall fully restrained at the bottom. (C) 2002 Elsevier Science Ltd. All rights reserved.

Publishing year

2002

Language

English

Pages

207-213

Publication/Series

Construction and Building Materials

Volume

16

Issue

4

Document type

Journal article

Publisher

Elsevier

Topic

  • Building Technologies

Keywords

  • crack control
  • minimum reinforcement
  • crack widths
  • crack development

Status

Published

ISBN/ISSN/Other

  • ISSN: 0950-0618