A Comparative Analysis of the Cradle Cantilever Casting and Large Segmental Support Cast － in － place Method

TENG Bing － jie

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Journal of Railway Engineering Society ›› 2012, Vol. 29 ›› Issue (6) : 55-58.

A Comparative Analysis of the Cradle Cantilever Casting and Large Segmental Support Cast － in － place Method

TENG Bing － jie

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Abstract

Research purposes: The comparison of cradle cantilever casting method and large segmental Support Cast － in － place method just concerned about the period and construction cost ，while ignoring the difference of structure stress ． The plane bar system model of the structure was formed by simulating cradle cantilever casting method and large segmental Support Cast － in － Place method． Analysis on the difference about mechanical characteristic of continuous beam provides references for practice．

Research conclusions:By comparing the results model analysis，the bending moment and shear of continuous beam are different in two construction method． Compared with the cradle cantilever casting method，using large segmental Support Cast － in － place method would reduce the negative moment ，increase positive moment of the beam and make the shear of mid － span increase，the shear of side span reduce．

Key words

cradle cantilever casting / support cast － in － place / bending moment / shear

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TENG Bing － jie. A Comparative Analysis of the Cradle Cantilever Casting and Large Segmental Support Cast － in － place Method[J]. Journal of Railway Engineering Society, 2012, 29(6): 55-58

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