大悬挑钢桁架结构楼盖舒适度分析  

Analysis of the Floor comfort level of the Large cantilever steel truss

作　　者：游福科 YOU Fuke(Xiamen Hordor Architecture ＆ Engineering Design Group Co.Ltd,Xiamen 361009)

机构地区：[1]厦门合立道工程设计集团股份有限公司,福建厦门361009

出　　处：《福建建筑》2018年第5期34-37,共4页Fujian Architecture & Construction

摘　　要：以某超高层办公楼18m大悬挑钢桁架结构为背景,研究该楼盖在使用阶段的人群行走时的舒适度情况,采用Midas Gen和SAP2000两款有限元软件,分析结构的自振频率,确定结构振动的不利位置及不利的步行频率,分别施加步行一步(Baumann)、连续行走(IABSE)的人行荷载,得到大悬挑楼盖结构的相应点的振动加速度,以现行规范限值为标准,分析得出该结构可以满足人们使用阶段的舒适性要求。In this paper, a 18-meter large cantilevered steel truss structure of a high-rise office building is used as the background to study the comfort level of the crowd during walking, using Midas Gen and SAP2000 finite element softwares to analyze the self- Vibration frequency and to determine the unfavorable position of structural vibration and unfavorable walking frequency, and apply the pedestrian load of one-step walking （Baumann） and continuous walking （IABSE） respectively to obtain the vibration acceleration of the corresponding point of the cantilevered floor structure, with current criterion restriction as standard, and then work out that the structure can meet the comfort requirements in the use stage.

关 键 词：楼盖舒适度 大悬挑钢桁架结构 步行荷载 

分 类 号：TU3[建筑科学—结构工程]