Recent questions tagged Bridge-works-questions-answers

Jan 3 1

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What are the functions of grout inside tendon ducts?

Jan 3 1

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In the design of a simply supported skew bridge, which direction of reinforcement should be provided?

Jan 3 1

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Why is the span length ratio of end span/approach span to its neighboring inner spans usually about 0.75?

Jan 3 1

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What are the three major types of reinforcement used in prestressing?

Jan 1 1

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Are diaphragms necessary in the design of concrete box girder bridges?

Jan 1 1

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What are the advantages of piers constructed monolithically with the bridge deck over usage of bearings?

Jan 1 1

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In the construction of a two-span bridge (span length = L) by using span-by-span construction, why is a length of about 1.25L bridge segment is constructed in the first phase of construction?

Jan 1 1

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In a curved prestressed bridge, how should the guided bearings in piers of the curved region be oriented with respect to the fixed bearing in abutment?

Jan 1 1

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How to determine the size of elastomeric bearings?

Jan 1 1

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In the design of elastomeric bearings, why are steel plates inserted inside the bearings?

Jan 1 1

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In prestressing work, if more than one wire or strand is included in the same duct, why should all wires/strands be stressed at the same time?

Jan 1 1

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Sometimes the side of concrete bridges is observed to turn black in colour. What is the reason for this phenomenon?

Jan 1 1

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What are the advantages of assigning the central pier and the abutment as fixed piers?

Jan 1 1

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In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete?

Jan 1 1

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In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process?

Jan 1 1

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What is “preset” during installation of bridge bearings?

Jan 1 1

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Under what situation shall engineers use jacking at one end only and from both ends in prestressing work?

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