【摘要】：為研究初始幾何缺陷對加肋凸型錐-環(huán)-柱結(jié)合殼連接分段極限承載能力的影響,參考現(xiàn)行規(guī)范對初始幾何缺陷的要求,設(shè)計(jì)了初始幾何缺陷的不同組合作為計(jì)算方案。建立了含不同初始幾何缺陷形態(tài)的錐-環(huán)-柱結(jié)合殼連接分段模型,采用弧長法,分析連接分段的極限承載能力及破壞形式,并探討了幾何修正系數(shù)Cg的計(jì)算方法。結(jié)果表明:不同形態(tài)的初始幾何缺陷對連接分段極限承載能力的影響有所區(qū)別;含加肋凸型錐-環(huán)-柱結(jié)合殼連接分段的極限承載能力幾何修正系數(shù)可參考本文結(jié)論。
[Abstract]:In order to study the effect of initial geometric defects on the ultimate load-bearing capacity of stiffened convex cone-toroidal combined shell connections, different combinations of initial geometric defects are designed as calculation schemes according to the requirements of current codes for initial geometric defects. A segmental model of cone-ring-column combined shell connection with different initial geometric defects is established. The ultimate bearing capacity and failure form of the connection segment are analyzed by arc length method, and the calculation method of geometric correction coefficient Cg is discussed. The results show that the effect of initial geometric defects of different shapes on the ultimate load-bearing capacity of joints is different, and the geometric correction coefficient of ultimate load-bearing capacity of cone-circular cylindrical and shell connections with stiffened convex type can be referred to the conclusion of this paper.
【作者單位】： 海軍工程大學(xué)艦船工程系;武漢船舶職業(yè)技術(shù)學(xué)院;
【基金】：國防科學(xué)技術(shù)工業(yè)委員會基礎(chǔ)類基金項(xiàng)目(1010302010202)
【分類號】：U661.4
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本文編號：2377212