Tying-bar type cable-stayed bridge system

Abstract

The invention discloses a tying-bar type cable-stayed bridge system, which comprises a main pier, a plurality of piers and main beams, wherein the piers and the main pier are arranged at intervals; the main beams are erected on the main pier and the plurality of piers by supports; the bottom surface of the main beam positioned at the position of the main pier is provided with a groove, and two main pier corbels inserted into the groove are arranged at the position of the groove of the main pier; each main pier corbel is connected with one end of each of a plurality of steel strand tying bards; and the other ends of the plurality of steel strand tying bars are connected with the ends of the main beams positioned on the piers. When the structure is adopted, thrust brakes are applied in an arch lone-oblique tower double plane steel box beam cable-stayed bridge, so the shockproof problem of common medium- and small-span lone-oblique tower cable-stayed bridges. And in the invention, the steel strands are used as tying bars to connect the main beams and the main pier, so the balance structure bears longitudinal horizontal forces, the stress is clear and the structure is simple; the deformation of the tying bars can consume part of energy, so the shockproof performance is high; and the change of the tying bars are easy.

Description

technical field [0001] The invention relates to a flexible thrust device, in particular to a tie rod type single tower cable-stayed bridge system. Background technique [0002] As a cable system, cable-stayed bridges have greater spanning capacity than beam bridges, are more economical than suspension bridges, and have competitive advantages in terms of reasonable force and convenient construction. Due to the self-anchoring characteristics of the cables, there is no need for huge anchorages like suspension bridges, and the cable-stayed bridges have good mechanical properties and economic indicators, and have become one of the most important types of long-span bridges. Occupying an advantage, cable-stayed bridges also play an important role in the competition for ultra-long-span bridges with a span of 800-1100m. [0003] Compared with the double-tower cable-stayed bridge, the single-tower cable-stayed bridge has many advantages in terms of economy, stress, overall design and...

AI Technical Summary

Problems solved by technology

But the disadvantages are also relatively large: first, when the main span is fully loaded, the bridge tower will tilt with the deflection angle of the main girder, which will increase the deflection of the main girder and the negative bending moment of the side girder; The support is transmitted to the substructure, which needs a high-tonnage support to adapt to it, and the design and maintenance of the support

Difficult to replace

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