路面交通和拟建济南地铁6号线对邻近砖木结构古建筑振动影响分析
艾楠1,2侯和涛1王培森3陈娟3
Impact Analysis of Ground Traffic and Proposed Jinan Metro Line 6 on Nearby Ancient Brick-wood Structure Vibration
AI Nan1,2HOU Hetao1WANG Peisen3Chen Juan3
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作者信息:1.山东大学土建与水利学院，250002，济南
2.济南市考古研究院，250014，济南
3.山东建筑大学土木工程学院，250101，济南
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Affiliation:1.College of Civil Engineering and Water Resources, Shandong University, 250002, Jinan, China
2.Jinan Institute of Archaeology, 250014, Jinan, China
3.College of Civil Engineering, Shandong Jianzhu University, 250101, Jinan, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.01.011
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中图分类号/CLCN:TU36
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栏目/Col:研究报告
摘要:
［目的］地面交通振动对临近古建筑的振动影响问题日益突出，有必要分析济南典型土层地质条件下地面交通和拟建济南地铁6号线对沿线江西会馆古建筑物振动特性的影响，评估交通环境振动对明清商贸会馆类古建筑的影响。［方法］在江西会馆主殿内外分别布置测点实测地面交通荷载下的地面振动响应，建立隧道-土层-江西会馆主殿建筑物模型计算拟建地铁6号线对古建筑的影响，结合GB/T50452—2008《古建筑防工业振动技术规范》分别评价两种交通荷载单独作用下古建筑物的振动水平。［结果及结论］在地面交通荷载作用下，江西会馆建筑群振动以竖向振动为主，建筑主殿内不同位置处沿道路方向振动主频均大于垂直道路方向振动；在地铁荷载作用下，江西会馆建筑物振动以竖向为主，柱顶处水平向振动较柱底减小而竖向振动增大，水平高频振动衰减较快而低频振动衰减较慢，竖向高频和低频振动均衰减较慢。在交通荷载和地铁荷载作用下，江西会馆振动水平均满足GB/T50452—2008对古建筑木结构振动限值的规定。
Abstracts:
［Objective］ The vibration impact of ground traffic on nearby ancient buildings is becoming increasingly prominent. It is necessary to analyze the influence of ground traffic and the proposed Jinan Metro Line 6 on the vibration characteristics of the ancient Jiangxi Guild Hall buildings along the line under the typical soil geological conditions of Jinan, so as to evaluate the impact of traffic environmental vibration on ancient buildings of trade guild halls of Ming and Qing dynasties. ［Method］ The ground vibration response under the ground traffic load is measured by the measuring points inside and outside the main hall of Jiangxi Guild Hall, and the influence of the proposed Metro Line 6 on the ancient buildings is calculated by the established tunnel-soil-main hall building model for Jiangxi Guild Hall. The vibration level of the buildings under the separate actions of the above two traffic loads is evaluated according to GB/T 50452—2008 Technical Specification for Protection of Historic Buildings against Man-made Vibration. ［Result & Conclusion］ Under the action of ground traffic load, the vibration of the Jiangxi Guild Hall complex is mainly vertical. The main vibration frequencies along the road direction in different positions inside the building main hall are all greater than those in the direction perpendicular to the road. Under the action of metro loads, the vibration of the Jiangxi Guild Hall building is mainly vertical. The horizontal vibration at the top of the columns decreases compared to that at the bottom of the column, while the vertical vibration increases. The horizontal high-frequency vibration attenuates relatively quickly, while the low-frequency vibration attenuates relatively slowly. Both the vertical high-frequency and low-frequency vibrations attenuate relatively slowly. Under the action of traffic loads and metro loads, the vibration level of the Jiangxi Guild Hall meets the provisions on the vibration limits of ancient wooden structures in the GB/T 50452—2008.
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