摘要
兑房河特大桥主桥为100m+180m+100m预应力混凝土连续刚构桥,边跨现浇段长8.76m,4#边墩52m,7#边墩27m。为研究高边墩大跨度现浇段施工方法对主桥线形的影响,通过有限元软件建立实桥模型,分析采用支架法和导梁法施工现浇段时主桥预拱度的设置,旨在为山区高墩大跨连续刚构桥的施工提供参考依据。
The main bridge of Duifanghe grand bridge is a prestressed concrete continuous rigid frame bridge with a span of 100m ＋ 180m ＋ 100m. Its side span cast - in - site segment is 8.76m long, 4 # side pier is 52m long and 7 # side pier is 27m long. This paper studies the influence of the high - side pier and long - span cast - in -site segmenth construction method to the main bridge~ linear, establishing real bridge model by finite element software and analyzing the settings of main bridge＇s camber when constructing cast - in - site segment by bracket method and guiding girder method, to provide a reference for the construction of high - side pier and long - span continuous rigid frame bridge in the mountainous areas.
出处
《北方交通》
2015年第7期17-21,共5页
Northern Communications
关键词
连续刚构桥
预拱度
支架法
导梁法
Continuous rigid frame bridge
Camber
Bracket method
Guiding girder method
