Large Span Of The Hydraulic Automatic Grabbing Beam Analysis And Design

Water conservancy construction of large investment, big development, hydraulic machinery development also ushered in the opportunity and the challenge, and as the automatic grabbing beam application in water conservancy and hydropower engineering more and more. When the gate hole is large in size, gate lifting difficulties, can be made into laminated beams gate door form, with automatic grabbing beam sectional hoisting. When the mobile hoist operation porous export gate or gate during operation, derrick loading and unloading frequently, using automatic grabbing beam is more suitable. Therefore, the automatic grabbing beam and reduce the lifting equipment lifting force, thereby reducing the effect of project cost.In recent years, wide span sluice in all types of water conservancy and hydropower project construction is more and more extensive application, so the automatic grabbing beam requirements are also getting higher and higher. Mechanical automatic grabbing beam has the advantages of simple structure, low cost, but the operation is not intuitive enough, especially in the dynamic water gate by the water flow impact, hanging off the poor reliability. Hydraulic grabbing beam and high reliability, can be dynamic water closing.At present the domestic hydraulic grabbing beam design have been developed, some large capacity hydraulic grabbing beam in construction of Xiaolangdi Dam and other large water conservancy project has also been very good applications, but the current span of less applied, in order to better promote the hydraulic grabbing beam applications, to solve practical engineering faced the problem, this article on large span hydraulic grabbing beam design were systematically analyzed and summarized, and combined with the engineering example, through to the large span hydraulic automatic grabbing beam structure finite element analysis is carried out, using the most unfavorable conditions the calculation results, the design is validated and optimized, and draw some large span grabbing beam design reference data for the future, the construction of water conservancy project in large span hydraulic grabbing beam design has the very big draw lessons from action.