1.Nanjing Hydraulic Research Institute,Nanjing 210029,China;
2.Key Laboratory of Water Science and Engineering,Ministry of Water Resources,Nanjing 210029,China
Abstract:Adopting cyclic uniform shocks with increase in amplitude,the failure features,the change laws of natural frequencies and modal shapes,and the relationship between the maximum acceleration response and impact energy of a gravity dam were studied.The test results showed that phenomena including cement mortar scaling,scaling region enlarging,minor cracks at upper part,upper part cracks enlarging and penetrating,upper part breaking,minor cracks at middle part,middle part cracks enlarging and penetrating,and middle part breaking appear in proper order; natural frequencies decrease with increase in impact energy; changes of the first two modal shapes are smaller after shock,the third modal shape has a larger change; the location of the maximum acceleration response is dam neck; the change tendency of the maximum acceleration response is related to the damage level; with increase in impact energy,the acceleration responses at locations with no or slight damage,increase,decrease,change slightly or increase slightly in order; the acceleration responses at locations with a more heavy damage decrease,increase,decrease,change slightly or increase slightly in order.
顾培英1,2,邓昌1,2,肖仕燕1,2,汤雷1,2,王建1,2. 重力坝均匀冲击破坏模型试验研究[J]. 振动与冲击, 2017, 36(9): 13-19.
GU Peiying1,2,DENG Chang1,2,XIAO Shiyan1,2,TANG Lei1,2,WANG Jian1,2. Damage model tests for a gravity dam under uniform shock load. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(9): 13-19.
[1]GJB3502-1998军用永备直升机机场场道工程建设标准[S].中国人民解放军总后勤部,1998.
[2]宁建国,商霖,孙远翔. 混凝土材料冲击特性的研究[J].力学学报,2006, 38(2):199-208.
NING Jian-guo, SHANG Lin, SUN Yuan-xiang. Investigation on impact behavior of concrete [J]. Chinese Journal of Theoretical and Applied Mechanics, 2006, 38(2):199-208.
[3] 王新武,李砚召. 带覆土预应力混凝土梁抗冲击试验[J].华中科技大学学报:自然科学版,2008, 36(9):113-116.
WANG Xin-wu, LI Yan-zhao. Experimental study on anti-impact properties of a partially prestressed concrete beam with covering soil [J]. Journal of Huazhong University of Science and Technology: Nature Science, 2008, 36(9):113-116.
[4]张望喜,单建华,陈荣,等. 冲击荷载下钢管混凝土柱模型力学性能试验研究[J].振动与冲击,2006, 25(5):96-101.
ZHANG Wang-xi, SHAN Jian-hua, CHEN Rong,et al. Experimental research on mechanical behavior of concrete filled steel tubes model under impact load [J]. Journal of Vibration and Shock, 2006, 25(5):96-101.
[5] 涂劲松,穆启华,李珠,等. 钢管混凝土侧向冲击荷载下的变形分析及简化计算[J].太原理工大学学报,2007, 38(2):156-159.
TU Jin-song, MU Qi-hua, LI Zhu,et al. Deformation analysis and simplifying computation of concrete-filled steel tube under lateral impact load [J]. Journal of Taiyuan University of Technology, 2007, 38(2):156-159.
[6] 任晓虎,霍静思,陈柏生. 高温后钢管混凝土短柱落锤动态冲击试验研究[J].振动与冲击,2011, 30(11):67-73,84.
REN Xiao-hu, HUO Jing-si, CHEN Bai-sheng. Dynamic behaviors of concrete-filled steel tubular stub columns after exposure to high temperature [J]. Journal of Vibration and Shock, 2011, 30(11):67-73,84.
[7]任晓虎,霍静思,陈柏生. 火灾下钢管混凝土梁落锤冲击试验研究[J].振动与冲击,2012, 31(20):110-115.
REN Xiao-hu, HUO Jing-si, CHEN Bai-sheng. Anti-impact behavior of concrete-filled steel tubular beams in fire [J]. Journal of Vibration and Shock, 2012, 31(20):110-115.
[8] 施劲松,许金余,任韦波,等. 高温后混凝土冲击破碎能耗及分形特征研究[J].兵工学报,2014, 35(5):703-710.
SHI Jin-song, XU Jin-yu, REN Wei-bo, et al. Research on energy dissipation and fractal characteristics of concrete after exposure to elevated temperatures under impact loading [J]. Acta Armamentarii,2014, 35(5):703-710.
[9]李立军,王蕊. 钢管混凝土结构构件耐撞性能的试验研究[J].北京理工大学学报,2012, 32(10):1018-1021.
LI Li-jun, WANG Rui. Experimental Study on the Impact Resistance Property of Concrete Filled Steel Tubes [J]. Transactions of Beijing Institute of Technology, 2012, 32(10):1018-1021. [10] 赵德博,易伟建. 钢筋混凝土梁抗冲击性能和设计方法研究[J].振动与冲击,2015, 34(11):139-145.
ZHAO De-bo, YI Wei-jian. Anti-impact behavior and design method for RC beams[J]. Journal of Vibration and Shock, 2015, 34(11):139-145.
[11] 高福银,龙源,纪冲,等. 侧向爆炸荷载下金属圆柱壳动力屈曲模态的实验研究[J].振动与冲击,2013, 32(24):117-121.
GAO Fu-yin, LONG Yuan, JI Chong, et al. Test for dynamic buckling modes of a metallic cylindrical shell subjected to lateral explosion [J]. Journal of Vibration and Shock,2013, 32(24):117-121.
[12] 纪冲,徐全军,万文乾,等. 钢质圆柱壳在侧向爆炸荷载下的动力响应[J].爆炸与冲击,2014, 34(2):137-144.
JI Chong, XU Quan-jun, WAN Wen-qian, et al. Dynamic responses of steel cylindrical shellsunder lateral explosion loading [J]. Explosion and Shock Waves,2014, 34(2):137-144.
[13] 纪冲,龙源,刘影,等. 充液及内空圆柱壳在爆炸荷载下动力屈曲特性研究[J].振动与冲击,2014, 33(2):76-80,88.
JI Chong, LONG Yuan, LIU Ying, et al. Dynamic buckling of liquid-filled and hallow thin-wall cylindrical shells subjected to explosion loading [J]. Journal of Vibration and Shock, 2014, 33(2):76-80,88.
[14] 李国强,瞿海雁,杨涛春,等. 钢管混凝土柱抗爆性能试验研究[J].建筑结构学报,2013, 34(12):69-76.
LI Guo-qiang, QU Hai-yan, YANG Tao-chun, et al. Experimental study of concrete-filled steel tubular columns under blast loading[J]. Journal of Building Structures,2013, 34(12):69-76.
[15] 李利莎,张洪海,谢清粮,等. 砖墙抗爆炸冲击震动效应模型试验研究[J].振动与冲击,2015, 34(2):204-209.
LI Li-sha, ZHANG Hong-hai, XIE Qing-liang, et al.Model experiments on blast shock vibration resistance of masonry wall[J]. Journal of Vibration and Shock,2015, 34(2):204-209.
[16] 李猛深,李杰,李宏,等. 爆炸荷载下钢筋混凝土梁的变形和破坏[J].爆炸与冲击,2015, 35(2):177-183.
LI Meng-shen, LI Jie, LI Hong, et al. Deformation and failure of reinforced concrete beams under blast loading [J].Explosion and Shock Waves,2015, 35(2):177-183.
[17] 陈万祥,卢红标,候小伟,等. 高强钢筋加强混凝土板抗爆性能试验研究[J].振动与冲击,2015, 34(10):135-141.
CHEN Wan-xiang, LU Hong-biao, HOU Xiao-wei, et al. Tests for anti-blast performance of concrete slabs with high-strength reinforcements under blast loading [J]. Journal of Vibration and Shock,2015,3 34(10):135-141.
[18] 黄小武,钟冬望,殷秀红,等. 混凝土边坡爆破试验动态应变测试及分析术[J].爆破,2014, 31(2):32-36.
HUANG Xiao-wu,ZHONG Dong-wang, YIN Xiu-hong, et al. Dynamic Strain Test and Analysis of Concrete Slope Blasting Test[J]. Blasting,2014, 31(2):32-36.
[19] 张社荣,孔源,王高辉. 水下和空中爆炸时混凝土重力坝动态响应对比分析[J].振动与冲击,2014, 33(17):47-54.
ZHANG She-rong, KONG Yuan, WANG Gao-hui. Dynamic responses of a concrete gravity dam subjected to underwater and air explosions [J]. Journal of Vibration and Shock,2014, 33(17):47-54.
[20] 张社荣,孔源,王高辉,等. 混凝土重力坝水下接触爆炸下的毁伤特性分析[J].水利学报,2014, 45(9):1057-1065.
ZHANG She-rong, KONG Yuan, WANG Gao-hui, et al. Damage characteristic analysis of concrete gravity dams subjected to underwater contact explosion[J]. Journal of Hydraulic Engineering,2014, 45(9):1057-1065.
[21] 顾培英,黄勤红,邓昌,等. 基于重整化群的水工混凝土结构整体破坏概率研究[J].水利水运工程学报,2010,(4):1-5.
GU Pei-ying, HUANG Qing-hong, DENG Chang,et al.Damage probability of hydraulic concrete structure based on renormalization group theory [J]. Hydro-Science and Engineering,2010, (4):1-5.
[22]GU Pei-ying, DENG Chang, TANG Lei. Determination of local damage probability in concrete structure. 2012 International Conference on Modern Hydraulic Engineering [C]. Procedia Engineering,28(2012):489-493.
[23] 顾培英,邓昌,章道生, 等. 砂浆板冲击破坏试验研究[J]. 振动与冲击,2015, 34(6):177-182.
GU Pei-ying, DENG Chang, ZHANG Dao-sheng,et al. Damage tests for a cement mortar plate under shock load[J]. Journal of Vibration and Shock, 2015, 34(6):177-182.
[24] 章道生,顾培英,邓昌,等. 砂浆板冲击荷载下声发射定位试验研究[J]. 科学技术与工程,2015.15(9):56-62.
ZHANG Dao-sheng, GU Pei-ying, DENG Chang,et al. Test Study on Acoustic Emission Location of Cement Mortar Plate by Shock Load[J].Science Technology and Engineering, 2015.15(9):56-62.