Novel suspension bridge center buckle device

Abstract

The invention discloses a novel suspension bridge center buckle device which comprises a cable clamp, a sling upper pulley, a double-strand sling, a vibration reduction frame, a sling lower pulley, adouble-strand sling fixing device, a space type inclined rod, a viscous damper and a space type inclined rod fixing device. The cable clamp is fixed to the midspan position of a suspension bridge maincable, and the upper ends of the suspension cable upper pulleys and the upper ends of the inclined rods are fixed to the cable clamp. The double-strand slings form a closed loop through upper and lower pulleys, and a plurality of damping frames are arranged in the middle of the double-strand slings; and the viscous damper is fixed in the middle of the inclined rod. The sling forms a closed loop through the upper pulley and the lower pulley, the vibration reduction frame is arranged, and the viscous damper is arranged on the inclined rod, so that longitudinal vibration of the short sling is reduced, and damage to an anchor head of the sling due to longitudinal reciprocating motion is prevented; by arranging the space type inclined rods, transverse vibration of the short slings is reduced.The device can be arranged in the midspan of the suspension bridge and used for multi-directional damping of the midspan short slings.

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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