李小珍 鄭凈 宋立忠 梁林 朱艷 張迅



摘 要:列車通過高架橋梁時,振動能量通過軌道結構傳遞到橋面及其他橋梁構件,激發橋梁振動并向空中輻射噪聲,這被稱為“橋梁結構噪聲”。近年來,隨著高速鐵路和城市軌道交通的迅猛發展,軌道交通橋梁結構噪聲預測方法、產生機理及控制措施研究已成為一個熱門研究方向。另外,隨著橋上聲屏障的廣泛應用,其降噪性能、振動及二次結構噪聲特性研究也成為一個熱門研究方向。梳理了近一年來軌道交通橋梁及橋上聲屏障的振動噪聲相關研究,總結了當前的研究熱點,展望了未來的發展趨勢。
關鍵詞:軌道交通;橋梁結構噪聲;聲屏障;減振降噪;研究進展
中圖分類號:U441.3 ? 文獻標志碼:R ? 文章編號:2096-6717(2020)05-0223-12
收稿日期:2020-04-22
基金項目:國家自然科學基金(51878565)
作者簡介:李小珍(1970- ),男,教授,博士生導師,主要從事車橋耦合動力學研究,E-mail: xzhli@swjtu.cn。
朱艷(通信作者),女,博士,E-mail: zhuyan@swjtu.cn。
Received:2020-04-22
Foundation item:National Natural Science Foundation of China (No. 51878565)
Author brief:Li Xiaozhen(1970- ), professor, doctorial supervisor, main research interest: vehicle-bridge interactions, E-mail: xzhli@swjtu.cn.
Zhu Yan (corresponding author), PhD, E-mail: zhuyan@swjtu.cn.
Abstract: When the train passes through a viaduct bridge, the vibration energy is transmitted to the bridge deck and other bridge components through the track structure, which gives rise to bridge vibration. The vibrating bridge radiates noise into the air, which is known as bridge-borne noise. In recent years, with the rapid development of high-speed railway and urban rail transit, the prediction methods, generation mechanisms and control measures of rail transit bridge-borne noise have become hot research topics. In addition, with the wide application of the sound barriers on bridges, the noise reduction performances, vibration and secondary structure-borne noise characteristics of sound barriers have also become hot research directions. In this paper, the research on vibration and noise of rail transit bridges and sound barriers in the past year is reviewed, the current research hotspots are summarized, and the future development trend is forecasted.
Keywords:rail transit; bridge-borne noise; sound barrier; vibration and noise reduction; research progress
列車通過高架橋梁時,振動能量通過軌道結構傳遞到橋面及其他橋梁構件,激發橋梁振動并向空中輻射噪聲,這被稱為“橋梁結構噪聲”。長期以來,相關研究主要集中在輪軌噪聲方面,對橋梁結構噪聲研究較少。近10~20年來,隨著高速鐵路和城市軌道交通的迅猛發展,高速列車運行于橋梁上引起的車輛橋梁耦合振動以及城市軌道交通高架結構的振動與噪聲產生機理、減振降噪技術等問題研究,已成為高速鐵路和城市軌道交通領域的重大課題。作為一門具有交叉學科性質的技術學科,軌道交通橋梁減振降噪的基礎理論研究和工程實踐應用都取得了巨大發展,已居于世界前列。……