【作者】 殷志祥； 郝建军；

【Author】 Yin Zhixiang,Hao Jianjun (Institute of Civil and Architecture of Liaoning Technical University,Fuxin 123000,China)

【机构】 辽宁工程技术大学建筑工程学院；

【摘要】 针对巨型网格结构子结构形式的多样性,提出一种基于网壳子结构的柱面巨型网格结构,用正交斜放的单层网壳结构作为柱面巨型网格结构的子结构。研究了其动力特性,包括主体结构单独承载及其与子结构协同承载情况下的自振频率,主要讨论了结构跨度、矢跨比、立体桁架梁高度、支承方式等参数对网壳子结构巨型网格结构的动力特性影响。通过分析可知,网壳子结构的应用提高了网格结构的刚度,结构刚度会随着跨度的增大和约束的减弱而降低,同时得到了适宜该结构形式的矢跨比。为该结构的地震响应分析和参数选择提供了理论依据。更多还原

【Abstract】 According to the diversity of giant grid structure sub-structure,the cylindrical giant grid structure with reticulated shell sub-structure was proposed,using the orthogonal diagonal single-layer reticulated shell as sub-structure of the cylinder giant grid structure.Its dynamic characteristics were studied under the condition that included the load-bearing contribution of the sub-structure.The influences of the structural span,rise-span ratio,three-dimensional truss beam height,supporting ways on the dynamic performance of the grid structure were mainly discussed.The analysis shows that reticulated shell sub-structure can increase the stiffness of the grid structure,structure stiffness will decrease with the increasing of span and the reduced of constraints,and got the optimum rise-span ratio of the structure.All these work will provide guide in theory for the seismic response analysis of the structure and parameter selection.更多还原