摘要
随着绿色建筑的兴起,结构使用性能和舒适度的控制会变得愈加重要。中华人民共和国国家标准,混凝土结构设计规范(GB50010-2010)指出对大跨度混凝土楼盖结构应进行竖向自振频率验算,并对不同结构楼盖的自振频率提出了具体要求,但并没有给出频率计算方法。所以有必要给出一个适用于工程实际的计算公式。运用能量法,并对比有限元分析软件的模型分析,提出了楼盖自振频率的简化计算公式,并对楼盖自振频率的控制方法进行了分析,发现一般情况下在满足变形控制的要求时,频率控制要求自然满足。
Due to the rise of green building, the usability and comfortable level of structure are becoming more and more important. The People＇s Republic state standards, concrete structure design codes （GB50010-2010） has pointed out that the concrete floor with big span should be checked for its perpendic- ular basic frequency, and come up with specific requirements for different kind of floors. But it doesn＇t give a method to calculate the frequency. So it is necessary to find a formula that can be applied to engi- neering. By means of energy method, and comparisons with the model analysis of ANSYS, a simplified calculating formula of floor＇s perpendicular basic frequency was put forward. Generally speaking, the floor can meet the requirement of freouencv when it doesn＇t beyond the deflection limit.
出处
《力学季刊》
CSCD
北大核心
2013年第1期147-153,共7页
Chinese Quarterly of Mechanics
基金
国家科技支撑计划(2012BAJ06B001)资助
关键词
楼盖
自振频率
舒适度
floor
frequency of free virbration
comfortable level
