Integral arched beam connection structure and construction method thereof for upper supporting type steel tied arch bridge

Abstract

The invention discloses an integral arched beam connection structure and construction method thereof for an upper supporting type steel tied arch bridge. The connection structure is used for connecting a main beam and a main arch, and comprises two groups of web plate assemblies, wherein the two groups of web plate assemblies are arranged at both sides of the main beam along the bridge direction; each group of web plate assembly comprises two integral web plates, wherein each integral web plate includes a transverse top edge, an arc-shaped bottom plate, a first vertical side edge, a second vertical side edge, a transverse middle edge, an inclined side edge and an arc edge; a main beam top plate is arranged between the two transverse top edges of the two groups of the web plate assemblies, and a main beam bottom plate is arranged between the two transverse middle edges of the two groups of the web plate assemblies, and main beam separation partitions are arranged between the main beam top plate and the main beam bottom plate at intervals; and a main arch top plate is arranged at the top ends of the inclined side edges of the web plate assemblies and perpendicular to the inclined side edges, and the main arch top plate extends upward into the main beam and is fixedly connected with the main bean partition plates. According to the integral arched beam connection structure of the upper supporting type steel tied arch bridge, the main beam and the main arch are connected through integral web plates, thus increasing structural integrity, guaranteeing smooth force transmission of the structure and improving the stability of the structure.

Description

technical field

[0001] The invention relates to the technical field of bridges, in particular to an integral arch-beam connection structure and construction method of an upward-supported steel tie-rod arch bridge. Background technique

[0002] As an important building built across natural or artificial obstacles, bridges not only improve the efficiency of urban traffic, but also provide a unique stage for displaying urban features. Due to its reasonable structure and beautiful lines, arch bridges have been widely used since ancient times. Tied arch bridges can reduce the horizontal thrust at the arch foot, which greatly improves the applicability of arch bridges.

[0003] The main arch and the main girder of the top-through steel tie-bar arch bridge are all steel structures. The main girder not only bears the load of the bridge deck, but also plays the role of balancing the horizontal thrust of the arch foot. It has high bearing capacity, beautiful lines, and low requirement...

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