| 五腿混凝土平台的三维光弹性应力分析 |
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| 引用本文： | 张祖巡,张林春,万钢,陈萍萍.五腿混凝土平台的三维光弹性应力分析[J].实验力学,1986,1(4). |
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| 作者姓名： | 张祖巡 张林春 万钢 陈萍萍 |
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| 作者单位： | 同济大学，同济大学，同济大学，同济大学 |
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| 摘 要： | 本文叙述了三维光弹性在五腿混凝土平台中的应用。为了简化和完成这个试验,采用了模拟四分之一的平台结构的光弹性模型,它承受着与原型相应的各种荷载,并且仔细地处理了它的边界约束条件。实验分析采用冻结法,最后确定了一些重要截面内外边界上的轴向和环向应力,并且得到了腿柱和罐体连接部位的应力集中。
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| 关 键 词： | 海上平台 光弹性 实验应力分析 |
THREE DIMENSIONAL PHOTOELASTIC STRESS ANALYSIS OF A FIVE-TOWER CONCRETE PLATFORM |
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| Zhang Zuxun Zhang Linchun Wan Gang Chen Pingping.THREE DIMENSIONAL PHOTOELASTIC STRESS ANALYSIS OF A FIVE-TOWER CONCRETE PLATFORM[J].Journal of Experimental Mechanics,1986,1(4). |
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| Authors: | Zhang Zuxun Zhang Linchun Wan Gang Chen Pingping |
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| Institution: | Tongji University |
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| Abstract: | An application of three dimensional photoelasticity in a five-tower concrete plat- form is described in this paper.In order to simplify and performe this experiment,a photoelastic model which is used to analogize one fourth of the platform structure is made.This model is subjected to the corresponding loading and its boundary-con- strained conditions have been carefully treated,Frozen stress method is used,and the distributions of axial and hoop stress at the internal and external boundaries of some important sections are determinted.Especially,the stress concentration at the junction between towers and the caisson is also obtained. |
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| Keywords: | offshore platforms photoelasticity experimental stress analysis |
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