局部双层叉筒网壳的非线性和线性分析
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摘要
叉筒网壳由圆柱面网壳交贯而成,局部双层叉筒网壳是介于双层叉筒网壳和单层叉筒网壳之间的网壳结构形式.本文首先提出了三种局部双层网壳的构成方式,继而针对局部双层叉筒网壳的布局特点,对其进行了非线性、线性、刚接、铰接等多种计算模型的比较分析,揭示了双层区域的线性性质和单层区域的非线性性质,进而有的放矢地提出了“非线性-线性联合”这种适合局部双层网壳分析的合理、准确、高效的方法.
Latticed Intersected Cylindrical Shell (LICS) is a new type of latticed shell formed by intersecting of two or more cylindrical shells. Partial double-layer LICS is a kind of structural form between double-layer LICS and single-layer LICS. In this paper three patterns of partial double-layer LICS were first proposed,then based on the pattern of partial double-layer LICS, different analysis models of nonlinear, linear, rigid joint and pin joint were compared, and linear property of double-layer region and nonlinear property of single-layer region was disclosed. A nonlinear-linear combined method was put forward with a definite object in view which is a reasonable, accurate and high-efficiency method for analysis partial double-layer LICS.
Latticed Intersected Cylindrical Shell (LICS) is a new type of latticed shell formed by intersecting of two or more cylindrical shells. Partial double-layer LICS is a kind of structural form between double-layer LICS and single-layer LICS. In this paper three patterns of partial double-layer LICS were first proposed,then based on the pattern of partial double-layer LICS, different analysis models of nonlinear, linear, rigid joint and pin joint were compared, and linear property of double-layer region and nonlinear property of single-layer region was disclosed. A nonlinear-linear combined method was put forward with a definite object in view which is a reasonable, accurate and high-efficiency method for analysis partial double-layer LICS.
引文
[1]董石麟,高博青.局部双层网壳结构及其在工程中的应用[A].第六届空间结构学术会议论文集[C],北京:地震出版社,1992.
[2]赵阳,董石麟.局部双层网状球壳的受力性能及其应用[A].第二届结构与地基国际学术会议研讨会论文集[C],香港,1997:480-485.
[3]夏开全.局部双层球面网壳的非线性稳定性研究[D]:[博士学位论文].杭州:浙江大学,1999.
[4]陈东.局部双层柱面网壳的稳定性与受力特性的研究[D]:[博士学位论文].杭州:浙江大学,1999.
[5]顾磊,董石麟.叉筒网壳的建筑造型、结构形式与支承方式[J].空间结构,1999,5(3):3-11.
[6]顾磊,董石麟.单层叉筒网壳结构的网格形式与受力分析[J].空间结构,已录用.
[7]顾磊,傅学怡,董石麟.单层脊线式叉筒网壳与膜型网壳的比较分析[J].建筑结构,2003,33(6):40-42.
[8]顾磊.叉筒网壳的结构形式、受力特性及预应力技术应用的研究[D]:[博士学位论文].杭州:浙江大学,2000.
[2]赵阳,董石麟.局部双层网状球壳的受力性能及其应用[A].第二届结构与地基国际学术会议研讨会论文集[C],香港,1997:480-485.
[3]夏开全.局部双层球面网壳的非线性稳定性研究[D]:[博士学位论文].杭州:浙江大学,1999.
[4]陈东.局部双层柱面网壳的稳定性与受力特性的研究[D]:[博士学位论文].杭州:浙江大学,1999.
[5]顾磊,董石麟.叉筒网壳的建筑造型、结构形式与支承方式[J].空间结构,1999,5(3):3-11.
[6]顾磊,董石麟.单层叉筒网壳结构的网格形式与受力分析[J].空间结构,已录用.
[7]顾磊,傅学怡,董石麟.单层脊线式叉筒网壳与膜型网壳的比较分析[J].建筑结构,2003,33(6):40-42.
[8]顾磊.叉筒网壳的结构形式、受力特性及预应力技术应用的研究[D]:[博士学位论文].杭州:浙江大学,2000.
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