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中文摘要：
江阴市民水上活动中心采用新型阶梯式肋环型网格结构体系,建筑和结构设计达到和谐统一.首先对该结构的体系构成进行了简单介绍,分析其受力机理.这种结构体系的静动力性能介于单、双层网壳之间,剪切变形与剪切内力较大.本文分析了结构在小震、中震作用下的反应,确保结构保持中震弹性.为评价节点刚度对承载力的影响,本文分析了考虑节点刚度折减后的结构性能.线性稳定性计算分析了结构的薄弱部位,通过非线性稳定性分析得到的结构荷载位移曲线具有明显的强化特性.
英文摘要：
Jiangyin swimming center adopts a structural system as ladder form rib-ring type of latticed shell.It unites harmonically the architectural design and structural design.Composition and mechanism of the new system is introduced first.Structural performance of the system falls between single-layer and double-layer latticed shell.Shear deformation and shear force cannot be neglected.Frequently met earthquake calculation and elastic analysis under moderate earthquake of the structure are conducted.Structural performance under the assumption of joint rigidity reduction is presented.Linear bulking analysis of the structure is also shown in the present paper.An obvious strengthening tendency could be identified on the displacement-load curve according to the nonlinear stability analysis of the system.
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