地铁线路邻近建筑物室内振动烦恼率预测分析
Prediction and Analysis of Indoor Vibration Annoyance Rates for Buildings Adjacent to Metro Lines
宋玉香 1唐果 1金阳 2张诗雨 3刘勇1
作者信息
- 1. 石家庄铁道大学土木工程学院 石家庄,050043;石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室 石家庄,050043
- 2. 铁建城发(湖州)开发建设有限公司 湖州,313000
- 3. 北京交通大学土木工程学院 北京,100044
- 折叠
摘要
为实现地铁线路邻近建筑物室内振动舒适度定量计算,提出场地振动响应数值模拟与链式衰减公式相结合的预测的方法,得到不同类型建筑物室内振动响应.首先,以预测振级为自变量,采用正态分布函数描述人对振动感觉的随机性,建立地铁线路邻近建筑物室内振动烦恼率模型;其次,以石家庄地铁为例,建立了场地振动预测模型,借助链式衰减公式,得到不同类型建筑物的室内振动烦恼率分布规律.研究结果表明:建立的烦恼率模型变异系数取0.15时,均方根误差为0.086,模型预测精度满足要求;在设计工况下给出了各类建筑物在不同区域的达标距离,对于0类区域,Ⅰ～Ⅴ类建筑物达标距离分别为12,14,20,44和46 m,对于5类区域任意距离都达标.该研究成果可为烦恼率评价法在地铁沿线建筑物振动舒适度预测和评估应用提供参考.
Abstract
To quantify indoor vibration comfort for buildings adjacent to subway lines,a method combining nu-merical simulation of site vibration response and chain decay model is proposed to predict the indoor vibration re-sponse of different types of buildings.Using the predicted vibration level as the independent variable and describ-ing the randomness of human perception of vibration with a normal distribution function,an indoor vibration an-noyance rate model for buildings near subway lines is established.Taking Shijiazhuang Metro as an example,the distribution law of indoor vibration annoyance rate is obtained.The results show that the annoyance rate model is established,with a coefficient of variation of 0.15 and a root mean square error of 0.086,meets the pre-diction accuracy requirements.Under the design conditions,the standard distances for various types of buildings in different areas are given.In zone 0,the standard distances for type I to type V buildings are 12 m,14 m,20 m,44 m,and 46 m,respectively,while any distance in zone 5 complies with the standard.The research re-sults can provide a reference for the application of the annoyance rate evaluation method in the prediction and as-sessment of vibration comfort of buildings along the subway line.
关键词
地铁/室内振动/建筑物/振动预测/烦恼率模型/舒适度Key words
metro/indoor vibration/buildings/vibration prediction/annoyance rate model/comfortability引用本文复制引用
基金项目
石家庄轨道交通有限责任公司科研项目(SJZM01B-ZGCSBGS005-FW-2019)
出版年
2024
NETL
NSTL
万方数据