国内外标准中竖向人致荷载模型的对比及分析  

Comparison and Analysis of Vertical Human-induced Load Models in Domestic and International Standards

作　　者：陈燕劲 洪洲澈 徐东平 Chen Yanjin;Hong Zhouche;Xu Dongping

机构地区：[1]中国建筑第八工程局有限公司南方公司,广东深圳518172

出　　处：《重庆建筑》2024年第3期42-46,50,共6页Chongqing Architecture

摘　　要：人致荷载模型是人们对结构施加的动力作用的数学抽象,也是面向工程分析的简化方法。上世纪至今,欧美日等国家先后发布了振动舒适度的设计标准,我国在2017年和2019年也发布了《建筑振动荷载标准》和《建筑楼盖振动舒适度技术标准》。各国由于实验方法和计算理论存在差异,人致荷载模型表达式不尽相同。在总结国内外标准中不同的竖向人致荷载模型的基础上,通过计算某大跨楼盖的峰值加速度响应对比各个模型的差异。结果表明,单人步行荷载的楼板峰值加速度响应和荷载模型的一阶动载因子呈正相关;JGJ/T 441的单人步行荷载模型较保守,但人群步行荷载模型可能使结果偏小。ion of the dynamic action exerted on structures,and it is also a simplified method for engineering analysis.Since the 20th century,Europe,the US,Japan and other countries have successively issued design standards relevant to vibration serviceability.China also issued Standards for Vibration Load of Buildings and Technical Code for Vibration Comfort of Building Floor in 2017 and 2019.Due to differences in experimental methods and computing theories among countries,the expressions of human-induced load model differ.Based on the summary of different vertical human-induced load models in domestic and foreign standards,the differences among these models are compared by calculating the peak acceleration response of a large span floor.The results showed that there is a positive correlation between the peak acceleration response of the floor slab with single-person walking load and the dynamic load factorαof the load model.The single-person walking load model of JGJ/T 441 is conservative,but the crowd walking load model may make the results small in some cases.

关 键 词：人致荷载 振动舒适度 有限元分析 

分 类 号：TU241.93[建筑科学—建筑设计及理论]