大跨度装配整体式钢网格盒式结构楼盖舒适度分析  

Research on comfortableness of large-span assembled monolithic steel grid plate structures

作　　者：徐向东[1] 马克俭[1,2] 张华刚[2] 姜岚[2] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]贵州大学空间结构研究中心,贵州贵阳550003

出　　处：《空间结构》2014年第1期4-8,17,共6页Spatial Structures

摘　　要：针对大跨度装配整体式钢网格盒式结构中的钢-混凝土协同式组合空腹夹层楼盖,考虑行走路线进行了振动响应计算.分析表明,楼盖低阶振型表现为竖向振动;采用行走路线法评价楼盖舒适度时应根据实际情况采用较长的路线并使其通过低阶振型中心.在此基础上进行了参数化分析,考虑了上、下肋刚度及上覆混凝土板厚度对舒适度的影响.在此类楼盖的实际工程应用中,可以在满足经济条件下适当增大上、下肋刚度或混凝土板厚度,从而满足舒适度的要求.In this paper, the vibration response of large-span assembled monolithic steel grid plate structures was analyzed considering walking routes. Analysis shows that the low step natural vibration of the large-span plate is mainly vertical vibration. In evaluation of the large-span plate comfort by the walking route method, the longer route through the 10w step vibration center should be used according to actual condition. On this basis, the parametric analysis was carried out. The stiffness of upper and lower ribs and the thickness of overlying concrete slab thickness on the comfortable degree was discussed. In the practical engineering application of this kind of plate, on the premise of meeting the economic conditions, the stiffness of upper and lower ribs and the thickness of plate can be properly increased in order to meet the comfort requirements.

关 键 词：装配整体式 舒适度 有限元 人行激励 

分 类 号：TU393.3[建筑科学—结构工程]