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Analysis for Effect of Different Arrangement and Connection Modes of Vertically Diagonal Tie Rods on Shelf Structures of Three-Dimension Warehouses
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摘要: 为了研究竖向斜拉杆布置以及连接方式对立体库货架结构在静力荷载和地震作用下的影响，通过建立双列单层、双列双层、不布置三种竖向斜拉杆布置与半刚性和刚性连接的连接方式的有限元模型来研究立体库货架结构所受应力和位移的变化规律。计算结果表明：在地震作用下，布置竖向斜拉杆对于立体库货架结构位移与构件最大应力有明显影响，静力荷载与地震作用对比表明双列双层布置竖向斜拉杆对结构整体受力变形效果优于双列单层布置；相比于刚性连接，半刚性连接能明显减少构件应力。Abstract: In order to study the effect of different arrangement and connection modes of vertical diagonal tie rods on the three-dimension warehouse shelf structures under static loads and earthquake action, three dimension element models vertical diagonal tie rods were established to study the variation laws of stress and displacement which arranged with double-row and single-layer diagonal rods, double-row and double-layer diagooal rods, and not arranged diagnoal rods, and different connection modes including rigidity and semi-rigidity connections. The calculation results showed that, under the action of earthquake, the arrangement of vertically diagnoal tie rods had a significant effect on the displacement and maximum stress of members. The comparison between static loads and earthquake action showed that the effect of the double-row and double-layer arrangement of vertical diagonal tie rods on the structural deformation was better than that of the double-row and single-layer arrangement. Compared with the rigid connection, the semi-rigid connection could obviously reduce the stress of members.
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