hinged length 中文意思是什麼
hinged length
解釋
絞接長度-
A flap vlave used in pumping station is a kind of hydraulic - operated automatic gate, which is similar to a hinged check vaive. because of their simple structure and reliability, being able to shorten the length of outlet passage and facilitate the starting of pumping system in comparison with siphonic vacuum - distroied cutoff scheme. so it is propitious to be used and save investment but at the same time, flap valves always show some disadvantage
因拍門簡單、可靠，與虹吸真空破壞截流閉鎖方式相比，可以縮短出水管道（流道）長度，並利於泵系統起動，與快速閘門相比，拍門也有諸多優點，閘門門體易關閉不到位或卡住不能活動，因為門槽和?塊較軸孔容易殘留異物，閘門門體克服滑動阻力不僅無機械增益，且阻力和動力不在一直線上，門體易傾斜而自鎖，而拍門的工作可靠性則遠高於快速閘門。 -
For frames of more than 3 stories, the weakest story is first selected and a three - story sub - assemblage including the weakest column is taken out, and the proposed method is applied, the effective length of the weakest column is thus obtained, the effective length of the remaining columns are computed through a pre - defined relations. because the sub - assemblage included beams at far ends of the columns above and below the column under consideration, the far end condition ( hinged or fixed ) may be considered easily
對于更多層的情況，先判斷薄弱層，再假定薄弱層的上下層柱遠端的梁端約束全部提供給與薄弱層相鄰層的柱，取出薄弱層及其上下層的樑柱，按前面處理兩層或三層框架的方法可以得到薄弱層柱很精確的計算長度系數，相應導得其它層柱的計算長度系數。
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