桩板结构中跨部分板的设计解析计算方法研究

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Abstract Research purposes:Pile－slab Structure is a new form of foundation structure under track．At present，there is no corresponding design code at home and abroad．The theoretical research seriously lags behind engineering practice．Based on elastic theories and reasonable assumptions，the differential equations of slab ＇s stress and deformation are established so as to deduce the analytical solution to the mid － span slab of pile － slab structure with fixed ends．

Research conclusions:This analytic calculation method is simple，clear and easy for engineering designers to master．Moreover，the calculation parameters are commonly used in engineering design and easy to gain with the universality of application．With the analytic method presented in this paper，not only can the flexure deformation and load bearing situation of the mid － span slab be found，but also can the load on the pile top be known．The calculation result can reflect the common mechanical regulation of the load sharing and transferring of the pile － slab．Furthermore，it can provide theoretical guidances for theory studies and engineering designs of pile － slab structure．

Key words： pile－slab structure analytic calculation method differential equation Winkler foundation model

Received: 10 May 2011

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TU472

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	XIAO Hong
	GONG Xiao － ping
	YUE Hui － ting

Cite this article:

XIAO Hong,GONG Xiao － ping,YUE Hui － ting. Research on Analytic Method for Mid － span Slab of Pile － slab Structure[J]. 铁道工程学报, 2011, 28(7): 28-33.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2011/V28/I7/28

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