Shaking table test of a RC frame structure with different cross-section columns of stilted floor
TANG Yangyang1, LI Yingmin1,2, LIU Liping1,2, JIANG Baolong1, YU Hongxiang1, JI Shuyan3
1.School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2.MOE Key Lab of New Techniques for Construction of Cities in Mountain Area, Chongqing University, Chongqing 400045, China;
3.School of Management Science and Real Estate, Chongqing University, Chongqing 400045, China
Abstract：In order to study the seismic response and seismic performance of stilted RC frame structure on a slope, the shaking table test of a 1/8 scaled stilted RC frame structure model was performed. The structural damage, dynamic property, acceleration response, deformation characteristics, story shear and torsion effect were analyzed. The results show that the damage of the stilted story and the 2nd story of the model is very uneven. At stilted floor, the damage state is slight, and the short column at the top of the slope is damaged early than other columns. However, the damage of the column bottom at 2nd story is serious, and the degree decreases from the side of the column at the bottom of the slope to the side of the column at the top of the slope. The main damage is located at floors above the stilted story, and partial-column yield failure mechanism is displayed. When the earthquake intensity is greater than the rare earthquake, the acceleration amplification coefficient of the stilted story is greater than that of the upper floors, and the increase of shear force of the stilted story is greater. The deformation of the stilted story is small, and the maximum story drift appeared at 3rd or 4th story. The maximum inter-story torsion angle shifts from the 2nd story to the stilted story with the increase of earthquake intensity.
唐洋洋1，李英民1,2，刘立平1,2，姜宝龙1，余洪翔1，姬淑艳3. 不同截面吊脚柱RC框架结构振动台试验研究[J]. 振动与冲击, 2023, 42(1): 19-27.
TANG Yangyang1, LI Yingmin1,2, LIU Liping1,2, JIANG Baolong1, YU Hongxiang1, JI Shuyan3. Shaking table test of a RC frame structure with different cross-section columns of stilted floor. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(1): 19-27.
[1] JGJ/T 472-2020 山地建筑结构设计标准[S]. 北京: 中国建筑工业出版社, 2020.
[2] 王丽萍, 李英民, 郑妮娜, 等. 5•12汶川地震典型山地建筑结构房屋震害调查[J]. 西安建筑科技大学学报(自然科学版), 2009,41(06):822-826.
Wang Li-ping, LI Ying-min, ZHENG Ni-na, et al. Seismic damage investigation on typical slope building in Wenchuan Earthquake[J], Journal of Xi’an University of Architecture & Technology(Natural Science Edition), 2009,41(06):822-826.
[3] Vijaya Narayanan A R, Goswami R, Murty C V R. Performance of RC Buildings along Hill Slopes of Himalayas during 2011 Sikkim Earthquake[C]// 15th World Conference on Earthquake Engineering. Lisbon, Portugal, 2012.
[4] Paul D K, Kumar S. Stability analysis of slope with building loads[J]. Soil Dynamics and Earthquake Engineering, 1997,16(06):395-405.
[5] 赖碧君, 肖常安, 付波. 坡地不等高嵌固高层建筑结构地震扭转效应分析[J]. 贵州大学学报(自然科学版), 2009,26(05):121-124.
Lai Bi-jun, Xiao Chang-an, Fu Bo. Analysis of Seismic Torsional Effect on High-rise Building Structure of Unequal height Fixed on Slope Land[J], Journal of Guizhou University(Natural Sciences), 2009,26(05):121-124.
[6] 范重, 刘涛, 杨苏, 等. 斜坡地面框架结构受力特点分析[J]. 建筑结构, 2016,46(23):1-9.
Fan Zhong, Liu Tao, Yang Su, et al. Analysis on performances of frame structures on sloping ground[J]. Building Structure, 2016,46(23):1-9.
[7] 杨实君. 吊脚式山地建筑结构抗震性能分析[D]. 重庆: 重庆大学, 2008.
[8] 秦晨. 吊脚框架结构抗震性能分析及抗震设计建议[D]. 重庆: 重庆大学, 2016.
[9] 李瑞峰. 层刚度比影响的RC吊脚框架结构拟静力试验及结构抗震性能研究[D]. 重庆: 重庆大学, 2020.
[10] 崔铭. 吊脚层内刚度影响的RC吊脚框架拟静力试验及调整措施研究[D]. 重庆: 重庆大学, 2020.
[11] GB 50011-2010 建筑抗震设计规范(2016年版)[S]. 北京: 中国建筑工业出版社, 2016.
[12] 张川, 王伟, 陈剑锋. 水平侧力下D值法在底层不等高框架内力计算中的应用[J]. 世界地震工程, 2002,18(04):116-122.
Zhang Chuan, Wang Wei, Chen Jian-feng. Application of D-value method in structural analysis of frames with uneven height columns in the first story under lateral forces[J]. World Earthquake Engineering, 2002,18(04):116-122.
[13] 王丽萍, 李英民, 韩军. 山地底部不等高柱框架结构侧向刚度计算方法[J]. 哈尔滨工程大学学报, 2015,36(11):1481-1487.
Wang Li-ping, Li Ying-min, Han Jun. Lateral stiffness method for frame structures with uneven ground column heights[J]. Journal of Harbin Engineering University, 2015,36(11):1481-1487.
[14] JGJ99-2015 高层民用建筑钢结构技术规程[S]. 北京: 中国建筑工业出版社, 2015.
[15] 周颖, 吕西林. 建筑结构振动台模型试验方法与技术[M]. 北京: 科学出版社, 2012.
[16] 刘红彪, 李宏男. 地震模拟振动台试验模型相似设计中的材料弹性模量取值问题研究[J]. 振动与冲击, 2016,35(03): 114-120.
LIU Hong-biao, LI Hong-nan. Evaluation method for material elastic modulus in the similitude design of structural shaking table test[J]. Journal of Vibration and Shock, 2016,35(03): 114-120.
[17] 杨溥, 李英民, 赖明. 结构时程分析法输入地震波的选择控制指标[J]. 土木工程学报, 2000,33(06):33-37.
Yang Pu, Li Ying-min, Lai Ming. A new method for selecting inputing waves for time-history analysis[J]. China Civil Engineering Journal, 2000, 33(06):33-37.
[18] 唐洋洋, 李英民, 韩军, 等. 配筋加强的掉层框架结构振动台试验研究[J]. 振动与冲击, 2020,39(19): 226-233.
Tang Yang-yang, Li Ying-min, Han Jun, et al. Shaking table test for strengthed - reinforcement frame structure supported
by foundations with different elevations [J]. Journal of Vibration and Shock, 2020,41(08):68-78.
[19] 张晋. 采用MATLAB进行振动台试验数据的处理[J]. 工业建筑, 2002,32(02):28-30, 65.
Zhang Jin. Using MATLAB to deal with data of the shaking table test[J]. Industrial Construction, 2002,32(02):28-30, 65.
