Abstract:Irrigation River Bridge is a mega bridge on Lianyungang-Yancheng highway, which is located in Yancheng and crosses Irrigation River. The main bridge is a double-surface semi-floating five-span continuous steel and concrete combined girder cable-stayed bridge with a main span of 340m, the main girder adopts bilateral ribs, and the cable tower is H-shaped with parallel stranded cables, and the anchoring of cables in the main girder and the tower adopts the anchor pulling plate and the steel anchored beam, respectively. This bridge is the widest combined girder cable-stayed bridge in China.

Abstract:Irrigation River Bridge is a double-tower, double-surface steel concrete stacked girder cable-stayed bridge, and the cable-stayed cables are made of epoxy sprayed steel strands. This paper focuses on the construction process of cable-stayed cable installation.

Abstract:Bridge engineering for large-span, high-tower cable-stayed bridges, in view of the importance of the structure, its seismic capacity and wind stability analysis is very necessary. Combined with engineering examples, this paper introduces the one-tower double cable-stayed cable-stayed bridge seismic and wind stability analysis.

Abstract:Anchorage type structure refers to the grouted anchor, anchor cable, soil nails and reinforced soil a class of geotechnical engineering reinforcement support structure. Composite anchorage structure refers to a class of geotechnical engineering reinforcement and support structure in which each single anchorage structure is used in conjunction with each other or with traditional engineering methods and structural measures. It has been proved and confirmed that anchorage and composite anchorage structures have excellent dynamic and static load resistance, and some of them have been successfully applied in a large number of structural types. However, there are more researches and applications on static load resistance of anchored and composite anchored structures and relatively few researches and applications on dynamic load resistance. This situation is similar at home and abroad. Some anchorage and composite anchorage structure types, such as foreign energy-absorbing anchorage and yielding anchorage structure, China's new composite anchorage structure, have their own characteristics, especially with great potential to resist dynamic loads and cost-effective ratio. Their use for static loads can also be explored. Although the tests on these structures are preliminary, only completed the effect test, have not yet done in-depth mechanistic studies, but the development prospects are promising, worthy of attention, reference and further discussion.

Abstract:Tianjin Fumin Bridge is the first space cable self-anchored suspension bridge in China. The main cable is spatial, the suspension cable is also spatial, and the method of determining the bridge alignment is very different from that of the planar cable suspension bridge. Space cable suspension bridge cable clamps in the system conversion needs to be rotated with the suspension cable in space, so the design of a new type of rotatable cable clamp structure form. The study of the rotatable clamps of Tianjin Fumin Bridge provides a useful exploration and accumulates a lot of experience for the construction of space cable suspension bridges in the future.

Abstract:In this paper, by analyzing the existing bridge cable hot casting anchor situation, combined with the test and engineering applications, put forward some of the structural design should pay attention to the matters for your analysis and discussion.

Abstract:This paper introduces the method of calibration of prestressing equipment and discusses the problems associated with calibration.

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