Spherical netted shell combined structure

Abstract

The spherical net shell composite structure belongs to the bridge structure; the upper spherical surface composed of the upper chord and the lower spherical surface composed of the lower chord, and the top spherical surface composed of the top chord are three spherical surfaces at three different diameters of concentric spheres. The upper spherical surface is located above the lower spherical surface, and is connected by web rods to form a double-layer net shell; the top spherical surface is installed above the upper spherical surface of the double-layer net shell, and a three-layer net shell is formed by connecting web bars; The steel bars are connected between the upper nodes in the polygonal grid, and the lower formwork is assembled on the lower part of the upper spherical surface; the force of each member of this structure is reasonable, and the construction of a long-span bridge can be realized. Large, small construction workload, low construction difficulty, low cost, and high traffic height under the bridge.

Description

technical field [0001] The invention belongs to a bridge structure, and mainly relates to a bridge with a large-span concentric spherical reticulated shell structure. Background technique [0002] At present, beam bridges, arch bridges, cable-stayed bridges and cable bridges are commonly used in bridge construction. Due to the difficulty in solving the force problem in the design of bridge structures, girder bridges, arch bridges and cable-stayed bridges can only be designed and constructed with the support of bridge piers. The cost is greatly increased; the span of a cable bridge is larger than that of a girder bridge, an arch bridge, and a cable-stayed bridge, but since the height of the towers at both ends of the cable bridge is proportional to the length of the bridge, the length of the cable bridge should not be too large. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, and to...

AI Technical Summary

Problems solved by technology

Due to the difficulty in solving the force problem in the design of bridge structures, girder bridges, arch bridges and cable-stayed bridges can only be designed and constructed with the support of bridge piers. The cost is greatly increased; the span of the cable bridge is larger than that of the girder bridge, arch bridge, and cable-stayed bridge, but since the height of the towers at both ends of the cable bridge is proportional to the length of the bridge, the length of the cable bridge should not be too large

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