挂篮悬浇与大节段支架现浇方案对比分析

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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

Received: 10 December 2011

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TU44

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Cite this article:

TENG Bing － jie. A Comparative Analysis of the Cradle Cantilever Casting and Large Segmental Support Cast － in － place Method[J]. 铁道工程学报, 2012, 29(6): 55-58.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2012/V29/I6/55

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