河海大学水利水电学院,江苏 南京 210098
刘斯宏(1964—),男,教授,博导。主要从事土石坝工程、土工袋技术研究。E‑mail: sihongliu@hhu.edu.cn
鲁洋(1991—),男,副研究员。主要从事水工岩土和土工袋技术研究。E‑mail: luy@hhu.edu.cn
收稿:2022-02-12,
修回:2022-07-06,
纸质出版:2023-10-15
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刘斯宏,鲁洋,方斌昕等.土工袋隔震农村民居现场激振测试及效果评价[J].防灾减灾工程学报,2023,43(05):972-978.
LIU Sihong,LU Yang,FANG Binxin,et al.Full‑scale Experimental Study on Effectiveness of Soilbag Cushion Used as Seismic Isolation in Building Engineering[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(05):972-978.
刘斯宏,鲁洋,方斌昕等.土工袋隔震农村民居现场激振测试及效果评价[J].防灾减灾工程学报,2023,43(05):972-978. DOI: 10.13409/j.cnki.jdpme.20220212001.
LIU Sihong,LU Yang,FANG Binxin,et al.Full‑scale Experimental Study on Effectiveness of Soilbag Cushion Used as Seismic Isolation in Building Engineering[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(05):972-978. DOI: 10.13409/j.cnki.jdpme.20220212001.
为验证土工袋垫层在城乡中低层民居中的减隔震效果,在地震多发区金沙江白鹤滩水电站坝址附近的民居点修建了中国首幢含有土工袋隔震垫层的农村民居。土工袋隔震垫层主要由土工编织袋包裹建筑级配砂堆叠而成,具有就地取材,价格低廉、施工简单等技术优势,适用于广大农村地区的中低层房屋建筑。现场大型原位激振试验结果表明:经过土工袋垫层处理后,地基结构三向峰值加速度的绝对值和隔震系数较未处理时均显著减小,验证了原位条件下土工袋垫层房屋基础具有良好的隔震效果,有望在实际地震来临之时保障民居免遭严重损失,为城乡综合隔震减灾提供新技术思路。
For validation on effectiveness of soilbag cushion used as seismic isolation in low-rise building engineering in the urban and rural areas, a real building built with soilbags isolation cushion layer was constructed. Then, a large-scale in-situ test was performed on the building. The experimental results show that soilbags cushion structure has good seismic isolation performance. Also, the advantages of low cost and a simple construction procedure make it particularly suitable for low rise houses in rural areas. The real project is the first building in China to adopt the new type of soilbags seismic isolation. The filled material is the sand commonly used in the construction of the house, and the overall cost does not increase. Based on the real building, the test preliminarily verified the effectiveness of the soilbags isolation layer under the in-situ condition based on an excitation test, which provides a new beneficial reference for the seismic isolation and disaster reduction of buildings in urban and rural areas.
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