一、基本情况 支架是过河設备的重要組成部分。过去,一般都采用木支架,且多数沒有經过正式設計。自整頓基本設施以来,对支架性能要求提高了,設計工作有了很大改进。突破了木結构的单一形式,出現了一批鋼支架、鋼筋混凝土支柱,解决了木支架所不容易解决的 First, the basic situation Stent is an important part of the river equipment. In the past, wood brackets were generally used, and most were not formally designed. Since the reorganization of the basic facilities, the requirements on the performance of stents have been improved and the design work has been greatly improved. Break through the single form of wood structure, there has been a number of steel brackets, reinforced concrete pillars to solve the wood bracket is not easy to solve