【摘要】 装配式预应力混凝土双柱桥墩是一种在上世纪铁路桥梁中广泛应用的一种桥墩形式。随着城市高架、跨海大桥、高速铁路等工程的不断新建,需要继续采用这种具有突出优点的桥墩方案。但是对于装配式双柱墩的设计及其抗震性能,目前仍然缺乏系统的研究。这已成为困扰桥梁设计工程师和业主的技术难题,从而限制了装配式双柱墩在我国桥梁建设中的应用。为了解决此技术难题,本文对目前的研究现状进行了剖析,并对进一步的研究思路和研究内容进行了详细分析。在此基础上进行的研究将为装配式双柱墩在我国的推广应用提供可靠的基础研究资料。更多还原

【Abstract】 Prefabricated and prestressed concrete double-column pier,which could be fabricated off-site,was an extensively used form of railway bridge piers in the 20th century.With the continuous construction of urban viaduct,oversea bridge and high-speed railway,it was attractive to use the superior performance of this type of pier.However,knowledge of the design method and performance of precast bridge columns and their connections during earthquakes was lacking,and consequently their widespread use in seismic regions was not yet to be realized.This has been a technical problem in the face of bridge design engineers and owners,and this weakness limited the application of the fabricated double-column bridge pier construction in China.To solve this technical problem,based on the analysis of the current research,further research ideas and research contents were presented in detail.The research will provide reliable knowledge to promote the application of prefabricated prestressed double-column pier in China.更多还原