A number of piers of a reinforced concrete marine jetty which was constructed fifteen (15) years ago...

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Civil Engineering

A number of piers of a reinforced concrete marine jetty whichwas constructed fifteen (15) years
ago are reported to undergo corrosion of reinforcement and inneed of urgent repair. From an
investigation that has been performed on the affected piers,it has been suggested that up to
about 50 mm of the concrete cover have to be removed andreplaced due to the presence of high
chloride content. Physical measurement on some of the badlycorroded reinforcements suggests
that some rebars have experienced greater than 25 % lost incross-sectional area. Suggest a
suitable retrofitting scheme and detail the work including thesteps to be undertaken in
rehabilitating the affected piers so that the corrosionproblem is arrested and the load carrying
capacity of the piers are restored. Provide appropriatesketches to aid your explanation.

Answer & Explanation Solved by verified expert

3.9 Ratings (624 Votes)

RETROFITTING REHABILITATION WORK STEPS FORCROSSONED MARINE RCC PIERThere are three major techniques for strengthening reinforcedconcrete columns which are discussed below1 Reinforced Concrete JacketingIt is one of the techniques used to improve or restore capacityof reinforced concrete column The size of the jacket and thenumber and diameter of the steel bars used in the jacketing processdepend on the structural analysis that was made to the columnReinforced Concrete Jacketing ProcessInitially reduce or eliminate loads on columns temporarily ifit is required This is done by putting mechanical jacks See Answer

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