【作者】 王羽霞；

【导师】 姜峰；

【作者基本信息】 大连理工大学 ， 建筑与土木工程， 2012， 硕士

【摘要】 二十一世纪,中国要向更广泛的领域和空间延伸,从能源安全和国家战略角度出发,都应加快深海工程发展,实现对南海等领海的有效开发和实际控制。而深海工程作为一个新兴的前沿学科领域,缺乏丰富的实际工程经验和成熟的设计规范,通过深水实验水池进行物理模型试验,模拟深水环境,是人们当前获得深海工程相关技术信息、数据的主要依赖手段。但现有深水实验水池从水深和功能上都不能满足更大水深、更复杂海洋工程结构形式发展的要求。因此大连理工大学将打造全国乃至世界深海工程中心,即大连理工大学深海工程创新实验基地,其主要部分为50m×30m×30m的深水池。随着整个社会的持续发展、人们生活水平的不断提高以及深海科研事业的蒸蒸日上,水池的规模已经不断扩大。目前已有的水池种类日新月异,功能也各不相同,但大多都是由板、壳组成的空间结构,并且水池的受力多以面内和侧向荷载为主。因此研究板、壳结构在侧向及面内荷载作用下的性能成为设计深水池的必要工作。本文为对大连理工大学深海工程创新实验基地建设项目深水池受力性能的研究,首先探讨小挠度薄板理论作为分析建模的理论基础,然后通过对深水池边界条件及受力情况的合理简化建立有限元模型,利用CKSTank水池设计软件和SAP2000有限元分析软件辅助建模及计算,最后将计算结果与简化模型的计算结果进行对比以验证其精确性。本文同时对深水池结构设计提出优化方案,对预应力布置、张拉、结构抗震、抗浮、抗裂等一系列问题提出简要的解决办法,为设计人员提供参考。更多还原

【Abstract】 China will expand to a larger place in21st century, considering energy safe and national strategy, deep-sea engineering should speed up its pace, make the exploration and controlling of South China Sea more effective. As a new frontal subject, deep-sea engineering is short of engineering experience and lack of mature design code. Deep-Sea engineering technological information and data can only be gained by doing physical model experiment in deep-water test pool, but existing deep-water test pool can’t satisfy the demand of deep-sea engineering in both depth and function. Therefore, Dalian University of Technology determined to be one of the national and global deep-sea engineering center by way of building DUT Deep-Sea Engineering Innovative Test Base, which main part is a deep-water test pool in size of50m X.30m X30m.Along with development of our society, continuous improvement of living standards and depth study of deep-sea research, scale of pool keeps enlarging in our world. New kinds of pools occur all the time and their functions expand from the past, but two conditions never change:it’s made up of plates and shells; lateral force is its main load. Therefore, research on the performance of plates and shells under lateral forces is in great need.This paper is for the research on performance of DUT Deep-Sea Engineering Innovative Test Base Deep Pool. Small deflection plate theory is discussed at first to be theoretical foundation, The boundary condition and forces are simplified, on condition of what the analytical model is built. CKSTank pool-design software and SAP2000structure analysis software are used for modeling and analysis. Then the accuracy of this model is verified and its result is compared to the simplified model to find its feature.An optimization scheme is proposed for the design of the deep pool, brief solution to placement of prestressed strand, tension, seismic design, anti-floating and anti-cracking is suggested for the designers in the future.更多还原