带肋壳体浅圆仓的试验和FEM分析
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摘要
文章通过试验和数值计算,对带肋壳体浅圆仓在自重作用下、粮压作用下的受力性能以及自振特性进行了研究。说明了带肋壳体浅圆仓受力特性,给出了仓体前15阶自振频率和部分振型图。由于结构频率分布密集,在进行反应谱计算时建议取前10阶振型进行叠加。
In this article, based on site testing and computer simulation analysis, thorough study were made to the structure of shell silo under the action of dead weight and enclosing pressure. In the meantime, the natural vibra-tion characteristics of the shell squat silo with ribs are studied. As a result, the first 15 inherent frequencies of structurewere got out and a part of vibration mode graphs were drawn up. Furthermore it was suggested how to chose the mode number of structure whose frequency is crowded together.
In this article, based on site testing and computer simulation analysis, thorough study were made to the structure of shell silo under the action of dead weight and enclosing pressure. In the meantime, the natural vibra-tion characteristics of the shell squat silo with ribs are studied. As a result, the first 15 inherent frequencies of structurewere got out and a part of vibration mode graphs were drawn up. Furthermore it was suggested how to chose the mode number of structure whose frequency is crowded together.
引文
[1] C．F．比尔兹，朱世杰译．结构振动分析．中国铁道出版社．1982
[2]郭继伍．建筑抗震设计．高等教育出版社．1990
[3]黄克智．板壳理论．清华大学出版社．1987
[4]顾强等．保钢150000m~3高炉于式煤气柜的自振特性[J]．西安建筑科技大学学报．1995年第5期
[5]赵经文等．结构有限元分析．哈尔滨工业大学出版，1988
[6]马建勋等．筒仓在地震作用下的计算理论[J]．土木工程学报．1997年第1期
[2]郭继伍．建筑抗震设计．高等教育出版社．1990
[3]黄克智．板壳理论．清华大学出版社．1987
[4]顾强等．保钢150000m~3高炉于式煤气柜的自振特性[J]．西安建筑科技大学学报．1995年第5期
[5]赵经文等．结构有限元分析．哈尔滨工业大学出版，1988
[6]马建勋等．筒仓在地震作用下的计算理论[J]．土木工程学报．1997年第1期
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