关于建筑工程中振动荷载组合的探讨
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(1 中国中元国际工程有限公司， 北京 100089； 2 中国机械工业集团有限公司， 北京 100080)
［摘要］结合在国家标准《工业建筑振动荷载规范》、《工业建筑振动控制设计规范》编制中碰到的问题，在对振动荷载参与荷载组合中碰到的一系列问题深入探讨的基础上，针对两种不同极限状态，提出对应不同验算内容存在两个类型的荷载组合。对于组合类型二，给出两种振动荷载参与结构设计的荷载组合路径，讨论了振动荷载出现的概率及组合系数取值原则。给出的分步实施荷载组合路径中，一阶段利用动荷载组合，解决动力效应下各类设备正常使用极限状态设计；二阶段利用已有的动荷载组合效应实现全部荷载组合，解决结构设计承载力极限状态设计以及变形验算问题。给出的荷载组合方法可用于存在设备振动荷载的工程结构中。［关键词］振动荷载; 设备; 工程振动; 荷载组合中图分类号：TU311.3 文献标识码：A 文章编号：1002-848X(2015)19-0008-05
Discussion about combination of vibration loads for building engineeringZhang Tongyi1, Xu Jian2, Zhang Song1(1 China IPPR International Engineering Co., Ltd., Beijing 100089, China; 2 China National Machinery Industry Corporation, Beijing 100080, China)Abstract: Two types of load combinations for different checking conditions were proposed, which are combined with some issues about vibration loads in combinations encountered in the preparation of national standards Dynamic load for the design of industrial building and Code for design of vibration control of industrial building. For type 2, the new added combination type, two ways of vibration loads combinations were given, probability of vibration loads and the principle of combination coefficients were discussed. The load combinations proceed in a stage way for two types was proposed. In the first stage, vibration loads combination was promoted to solve the problems of equipments design under serviceability limit states and vibration attenuation products design under ultimate limit states. In the second stage, the existing vibration loads combination effect was adopted to implement all load combinations which can solve the problems of structure design under ultimate limit states and structure deformation. The proposed methods of loads combination can be utilized to design structures under equipment dynamic loads and related products.Keywords: vibration load; equipment; engineering vibration; load combination
作者简介：张同亿，博士，教授级高级工程师，Email：zhangtongyi@ippr.net。
