A New Central Buckle Device for Suspension Bridge

Abstract

The invention discloses a novel central buckle device of a suspension bridge, which comprises a cable clamp, an upper pulley of a sling, a double-strand sling, a shock absorbing frame, a lower pulley of a sling, a fixing device of a double-strand sling, a space type oblique rod, and viscous damping device and a space-type oblique rod fixing device; the cable clamp is fixed at the mid-span of the main cable of the suspension bridge, and the upper pulley of the sling and the upper end of the oblique rod are fixed to the cable clamp; A number of damping frames are provided; the viscous damper is fixed in the middle of the inclined rod. The invention reduces the longitudinal vibration of the short sling and prevents the anchor head of the sling from being damaged due to longitudinal reciprocating motion by passing the sling through the upper and lower pulleys to form a closed loop, setting a vibration damping frame, and setting a viscous damper on the inclined rod; The lateral vibration of the short sling is reduced by setting the space type oblique rod. The invention can be arranged in the mid-span of the suspension bridge, and is used for multi-directional vibration reduction of the mid-span and short suspension cables.

Description

technical field [0001] The invention relates to a novel central buckle device of a suspension bridge, which is suitable for the connection of a main cable and a main girder in the mid-span of a long-span suspension bridge, and is mainly used in the field of civil structure bridge engineering. Background technique [0002] With the rapid development of design methods and construction technology in the field of civil engineering, the number and span of long-span suspension bridges continue to increase. Compared with other bridge structures, suspension bridges have the advantages of strong spanning capacity and less impact on navigation, so they are widely used in super-large river-crossing and sea-crossing projects. Especially in the Yangtze River Basin in my country, there are many tributaries, the urban agglomeration is economically prosperous, the traffic demand is high, and the navigation demand is high. A large number of large-scale and significant long-span suspension br...

AI Technical Summary

Problems solved by technology

However, for the lateral vibration of the short sling caused by the lateral misalignment of the main girder and the main cable, it cannot provide better protection measures

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