The use of 'concordant cables' in prestressed continuous beam induces

initial support reactions

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no initial support reactions

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excess cracking

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excess deflection

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Solution

The correct option is B no initial support reactions
A concordant cable profile is a profile given for the cable such that the consequent C-line coincides with the P-line, when external loads are not applied. This means when a concordant profile is provided there will be no reactions at the supports due to prestressing alone.

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