浆砌块石拱坝爆破振动响应有限元时程分析
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摘要
浆砌块石拱坝的振动效应具有砌体结构和拱形结构的双重特征,通过振动速度和频率判据来评价大坝的安全性有一定局限性。通过引入混凝土损伤塑性模型,同时考虑拱坝的固有特性及振动持时,采用实测振动速度作为边界条件输入的方法,对爆破振动影响下的浆砌块石拱坝进行有限元时程分析,研究了大坝在爆破振动作用下的位移和损伤特性,为类似工程的安全评价提供参考。
The vibration effect of stone masonry arch dams has dual characteristic of masonry and arch structures.The criterion of the vibration speed and frequency is not sufficient to evaluate the dam safety.Through importing the concrete damage plasticity model and considering the dam inherent characteristics and vibration duration,the stone masonry arch dam under blasting vibration was analyzed in time history by the method of monitored vibration velocity as boundary condition.The displacement and damage characteristics are also discussed in the analysis,which provides references for similar projects.
The vibration effect of stone masonry arch dams has dual characteristic of masonry and arch structures.The criterion of the vibration speed and frequency is not sufficient to evaluate the dam safety.Through importing the concrete damage plasticity model and considering the dam inherent characteristics and vibration duration,the stone masonry arch dam under blasting vibration was analyzed in time history by the method of monitored vibration velocity as boundary condition.The displacement and damage characteristics are also discussed in the analysis,which provides references for similar projects.
引文
[1]蒋媛媛.长沙坝水库砌石拱坝的加固研究[D].武汉:武汉大学硕士学位论文,2005.[1]JIANG Yuan-yuan.Research on the reinforcement of Chang-shaba stone masonry arch dam[D].Wuhan:Wuhan Univer-sity.(in Chinese)
[2]王海波,李德玉.拱坝抗震设计理论与实践[M].北京:中国水利水电出版社,2006.[2]WANG Hai-bo,LI De-yu.Theory and practice of seismicdesign of arch dam[M].Beijing:China Water PowerPress,2006.(in Chinese)
[3]中国生,房营光,徐国光.基于小波变换的建(构)筑物爆破振动效应评估研究[J].振动与冲击,2008,27(8):121-125.[3]ZHONG Gguo-sheng,FANG Ying-guang,XU Guo-guan.Study on blasting vibration effect assessment of structurebased on wavelet transfort[J].Journal of vibration andshock,2008,27(8):121-125.(in Chinese)
[4]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.[4]ZHAO Ming-sheng,LIANG Kai-shui,CAO Yue,et al.Discussion on the security criteria of construction structureof building under blasting vibration[J].Blasting,2008,25(4):24-27.(in Chinese)
[5]钱胜国,陈玲玲,吴新霞,等.爆破地震工程结构动力学分析[M].北京:中国水利水电出版社,2006.[5]QIAN Sheng-guo,CHEN Ling-ling,WU Xin-xia,et al.Structural dynamic analysis of earthquake engineeringblasting[M].Beijing:China Water Power Press,2006.(in Chinese)
[6]DL5073—2000水工建筑物抗震设计规范[S].北京:中国标准出版社,2000.[6]DL5073—2000 Specification for seismic design of hydrau-lic structures[S].Beijing:Standards Press of Beijing,2000.(in Chinese)
[7]田运生,田会礼,于亚伦,等.爆破地震波作用下民房破坏分析和破坏特征[J].爆破,2005,22(1):96-98.[7]TIAN Yun-sheng,TIAN Hui-li,YU Ya-lun,et al.Damagecharacter istics and damage analysis of residential housecaused by blasting vibration wave[J].Blasting,2005,22(1):96-98.(in Chinese)
[2]王海波,李德玉.拱坝抗震设计理论与实践[M].北京:中国水利水电出版社,2006.[2]WANG Hai-bo,LI De-yu.Theory and practice of seismicdesign of arch dam[M].Beijing:China Water PowerPress,2006.(in Chinese)
[3]中国生,房营光,徐国光.基于小波变换的建(构)筑物爆破振动效应评估研究[J].振动与冲击,2008,27(8):121-125.[3]ZHONG Gguo-sheng,FANG Ying-guang,XU Guo-guan.Study on blasting vibration effect assessment of structurebased on wavelet transfort[J].Journal of vibration andshock,2008,27(8):121-125.(in Chinese)
[4]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.[4]ZHAO Ming-sheng,LIANG Kai-shui,CAO Yue,et al.Discussion on the security criteria of construction structureof building under blasting vibration[J].Blasting,2008,25(4):24-27.(in Chinese)
[5]钱胜国,陈玲玲,吴新霞,等.爆破地震工程结构动力学分析[M].北京:中国水利水电出版社,2006.[5]QIAN Sheng-guo,CHEN Ling-ling,WU Xin-xia,et al.Structural dynamic analysis of earthquake engineeringblasting[M].Beijing:China Water Power Press,2006.(in Chinese)
[6]DL5073—2000水工建筑物抗震设计规范[S].北京:中国标准出版社,2000.[6]DL5073—2000 Specification for seismic design of hydrau-lic structures[S].Beijing:Standards Press of Beijing,2000.(in Chinese)
[7]田运生,田会礼,于亚伦,等.爆破地震波作用下民房破坏分析和破坏特征[J].爆破,2005,22(1):96-98.[7]TIAN Yun-sheng,TIAN Hui-li,YU Ya-lun,et al.Damagecharacter istics and damage analysis of residential housecaused by blasting vibration wave[J].Blasting,2005,22(1):96-98.(in Chinese)
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