This paper mainly makes the research of construction method for cast - in - situ concrete box girder of continuous girder bridge , using assembled highway bridge steel truss ( often known as bailey truss ) as the falsework , technical schemes for the falsework erected over river , particularly the rigid slant supports of the falsework on piers , and analysis , calculation methods and deformation of the falsework in accordance with the related tests in field 摘要主要研究了采用裝配式公路鋼橋桁架(通常稱為貝雷架)做為支架進(jìn)行連續(xù)梁橋現(xiàn)澆箱梁混凝土的施工方法;研究了跨河施工支架的技術(shù)方案,特別是施工支架在橋墩上的剛性斜撐,同時(shí)結(jié)合現(xiàn)場試驗(yàn)研究了施工支架的分析計(jì)算方法及變形。