Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/47467
Title: Nonlinear and time-dependent analysis of continuous unbonded prestressed concrete beams
Authors: Lou, Tiejiong 
Lopes, Sergio M.R. 
Lopes, Adelino V. 
Keywords: unbonded tendons; continuous beams; numerical method; behaviour
Issue Date: Apr-2013
Publisher: Elsevier
Serial title, monograph or event: Computers & Structures
Volume: 119
Abstract: This paper describes a numerical model developed to predict the full-range nonlinear response, as well as time-dependent service-load behaviour, of continuous beams prestressed with internal unbonded tendons. Both geometric and material nonlinearities are considered. The strain increment in unbonded tendon, at any deformed state, is computed from the elongation of the entire tendon between end anchorages. The unbonded prestressing contributes to the concrete beam by equivalent loads, which would be updated continuously during the solution process. The analysis reproduces the experimental results of continuous beam specimens with favourable agreement. Some important aspects of behaviour of the continuous beams are examined.
URI: http://hdl.handle.net/10316/47467
ISSN: 0045-7949
DOI: 10.1016/j.compstruc.2012.12.014
Rights: openAccess
Appears in Collections:FCTUC Eng.Civil - Artigos em Revistas Internacionais

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