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Construetion of closure parts in cable-stayed side and main spans of the Second Changjiang RiverBridge in Wuhan,including transformation of structural system,methods for geometric control of main girders, iselaborated. 介绍了武汉长江二桥斜拉桥边跨与中跨的合拢施工、结构体系转换和主梁线型控制措施。 The paper introduces some results of the strength analysis for a new structural steel cofferdam applied to bridge pier construction, emphasizing the influences of external load selection, structural dimension and arrangement on the strength, construction and economic performance. 介绍了某桥桥墩工程新型施工结构——钢围堰的强度分析结果.着重分析了外载荷的选取、结构型式及结构构件的布置对强度、制造和经济性的影响. This paper introduces suspension bridge′s superstructure construction supervision and control technology,based on the practical Humen Bridge engineering project.The test method to get structure parameters on the construction work site is proposed together with the main cable and stiffening girder measuring technology,system identification of structure parameter,and the construction control analysis technology,as well as three sets of structure analysis... This paper introduces suspension bridge′s superstructure construction supervision and control technology,based on the practical Humen Bridge engineering project.The test method to get structure parameters on the construction work site is proposed together with the main cable and stiffening girder measuring technology,system identification of structure parameter,and the construction control analysis technology,as well as three sets of structure analysis programs for suspension bridge superstructure,which have been in practical use with good effects. 针对虎门悬索桥上部构造施工流程 ,系统介绍悬索桥上部构造施工监测与控制技术。提出的结构参数现场试验测定方法 ,主缆和加劲梁线型、索塔塔顶变位等监测技术 ,结构参数系统识别和施工控制分析方法 ,以及研制的 3套悬索桥上部构造施工结构分析程序 ,均已在实桥上得以应用 ,并取得良好效果
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