Numerical Analysis of Structural Response under Dynamic Load

doi:10.12972/ksmer.2013.50.3.358

All Issue

2013 Vol.50, Issue 3 Preview Page Next Page

Research Paper

Numerical Analysis of Structural Response under Dynamic Load 동적하중을 받는 구조물의 응답거동 특성에 대한 수치해석적 고찰: 류창하 · 최병희 · 장형수
Chang-Ha Ryu, Byung-Hee Choi and Hyung-Su Jang

30 June 2013. pp. 358-367

PDF

Abstract

Blast-induced ground vibrations may cause an environmental impact such as damage on adjacent structures and facilities. Ground vibrations occurred in explosive demolition of structures are induced by ground impact of disintegrated mass concrete, as well as by explosive blasting. The waveform record from explosive demolition is divided distinctly into early part of blast-induced vibration and later part of impact-induced one. The two wave patterns show very different characteristics in frequency contents and duration of ground vibration, which may have different effects on adjacent structure. In this paper, several examples are investigated numerically to provide sound understandings of structural responses to the demolition-induced ground motions. Two reinforced concrete frames are analyzed by using step-by-step procedure. Their responses are summarized in terms of floor velocity envelopes. The response characteristics between high-rise and low-rise building were also investigated. It is shown that the responses are quite different depending on the structure type and on the frequencies of the ground vibration.

Keywords

Explosive blasting

Structure demolition

Ground vibration

Structural response

Numerical modeling

발파작업으로부터 발생하는 지반진동은 인접한 건물이나 시설물에 피해를 미칠 수 있다. 발파를 이용한 구조물 해체의 경우, 지반진동은 발파에 의한 진동과 파괴된 부재가 낙하하여 지반에 충격을 가함으로써 발생하는 진동으로 나타난다. 현장에서 계측된 파형은 발파에 의한 초기 진동 파형에 이어서, 파괴된 부재의 낙하 충격에 의한 진동 파형으로 구분되어 나타남을 보여준다. 두 파형은 주파수 특성과 진동 지속시간 면에서 특히 다르게 나타나며 이러한 차이로 인하여 인접한 구조물에 영향 정도가 달라질 수 있다. 본 논문은 발파해체시 발생하는 지반진동에 대한 구조물의 응답 특성을 이해하기 위해 수치해석적 방법으로 고찰하였다. 두 가지 형태의 RC 골조 모델과 고층 및 저층 건물에 대한 수치해석 결과, 구조물의 응답 특성은 구조물 형태 및 외부 진동의 주파수 특성에 따라 달리 나타남을 보여주었다.

키워드

화약발파

구조물해체

지반진동

구조물 응답

수치해석

References

DIN 4150 Teil 3. 1986, Ersch Åtterungen im Bauwesen - Einwirkungen auf Bauliche Anlagen
Dowding, C.H., 1996, Construction Vibrations, Prentice Hall, p. 610.
Huh, W.H., Yang, K.J. and Kang. D.W., 2012, “Study on the Blast and Impact-induced Vibrations of the Tall Building by Model Experiment,” Proceedings of the 99th Symposium of the Korean Society of Mineral and Energy Resources Engineers, pp. 251.
Kannan, A.E. and Powell, G.H., 1973, DRAIN-2D A General Purpose Computer Program for Dynamic Analysis of Inelastic Plane Structures, Report No. EERC and 73-22, University of California, Berkeley.
Kannan, A.E. and Powell, G.H., 1975, DRAIN-2D, Earthquake Engineering Research Center, U of California, Berkeley, p. 101.
Park, H.T., Choe, B.C., Kim, H.J., Lee, C.K., Joo, S.H. and Cho, H.C., 1996, Study on the Demolition Methods of Structure(1), Korea National Housing Corporation.
Roh, H.I., Bu. C.R. and Kim, H.S., 1992, Reinforced Concrete Design, Industrial Book Publication Corp.
Ryu, C.H., 2005a, “Analysis of Regulations and Standards on Blast Vibration and Suggestions,” Proceedings of the 3rd HanHwa Symposium on Blast Techniques, pp. 3-12.
Ryu, C.H., 2005b, “Review of Safety Level of Blast Vibration for Structures,” Explosives and Blasting, Korean Society of Explosives and Blasting Engineering, Vol. 23, No. 3, pp. 1-10.
Ryu, C.H., Sunwoo, C., Chung, S.K., Lee, H.J., Hong, K.P., Lee, J.L., Park, Y.J. and Synn, J.H., 1993, Development of Controlled Blasting Techniques for Structure Demolition(I), Report KR-93(T)-26, Ministry of Science and Technology, p. 258.
Ryu, C.H., Choi, B.H. and Kim, Y.K., 2002, “Development of Protection Techniques for Explosive Demolition of RC Pillar,” Explosives and Blasting, Korean Society of Explosives and Blasting Engineering, Vol. 20, No. 4, pp. 17-28.
Ryu, C.H., Choi, B.H. and Kim, H.J., 2010, “Failure Behavior of RC Pillar Under Blast Loading and Protection Technique,” Proceedings of The 5th International Conference on Explosives and Blasting, The Japan-China-Korea Technical Committee of Explosives and Blasting, Sapporo, Japan, pp. 7-11.
Ryu, C.H., Choi, B.H., Jung, J.W. and Kim, H.J., 2011, “Characteristics of Impact-induced Ground Vibration and Predictive Method,” 3rd Asian Pacific Sympo. on Blasting Techniques, Xiamen, China, pp. 403-407.
Siskind, D.E., Stagg, M.S., Kopp, J.W. and Dowding, C.H., 1980, Structure Response and Damage Produced by Ground Vibration from Surface Mine Blasting, USBM RI 8507, p. 111.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 50
No :3
Pages :358-367
DOI :https://doi.org/10.12972/ksmer.2013.50.3.358

[1] DIN 4150 Teil 3. 1986, Ersch Åtterungen im Bauwesen - Einwirkungen auf Bauliche Anlagen

[2] Dowding, C.H., 1996, Construction Vibrations, Prentice Hall, p. 610.

[3] Huh, W.H., Yang, K.J. and Kang. D.W., 2012, “Study on the Blast and Impact-induced Vibrations of the Tall Building by Model Experiment,” Proceedings of the 99th Symposium of the Korean Society of Mineral and Energy Resources Engineers, pp. 251.

[4] Kannan, A.E. and Powell, G.H., 1973, DRAIN-2D A General Purpose Computer Program for Dynamic Analysis of Inelastic Plane Structures, Report No. EERC and 73-22, University of California, Berkeley.

[5] Kannan, A.E. and Powell, G.H., 1975, DRAIN-2D, Earthquake Engineering Research Center, U of California, Berkeley, p. 101.

[6] Park, H.T., Choe, B.C., Kim, H.J., Lee, C.K., Joo, S.H. and Cho, H.C., 1996, Study on the Demolition Methods of Structure(1), Korea National Housing Corporation.

[7] Roh, H.I., Bu. C.R. and Kim, H.S., 1992, Reinforced Concrete Design, Industrial Book Publication Corp.

[8] Ryu, C.H., 2005a, “Analysis of Regulations and Standards on Blast Vibration and Suggestions,” Proceedings of the 3rd HanHwa Symposium on Blast Techniques, pp. 3-12.

[9] Ryu, C.H., 2005b, “Review of Safety Level of Blast Vibration for Structures,” Explosives and Blasting, Korean Society of Explosives and Blasting Engineering, Vol. 23, No. 3, pp. 1-10.

[10] Ryu, C.H., Sunwoo, C., Chung, S.K., Lee, H.J., Hong, K.P., Lee, J.L., Park, Y.J. and Synn, J.H., 1993, Development of Controlled Blasting Techniques for Structure Demolition(I), Report KR-93(T)-26, Ministry of Science and Technology, p. 258.

[11] Ryu, C.H., Choi, B.H. and Kim, Y.K., 2002, “Development of Protection Techniques for Explosive Demolition of RC Pillar,” Explosives and Blasting, Korean Society of Explosives and Blasting Engineering, Vol. 20, No. 4, pp. 17-28.

[12] Ryu, C.H., Choi, B.H. and Kim, H.J., 2010, “Failure Behavior of RC Pillar Under Blast Loading and Protection Technique,” Proceedings of The 5th International Conference on Explosives and Blasting, The Japan-China-Korea Technical Committee of Explosives and Blasting, Sapporo, Japan, pp. 7-11.

[13] Ryu, C.H., Choi, B.H., Jung, J.W. and Kim, H.J., 2011, “Characteristics of Impact-induced Ground Vibration and Predictive Method,” 3rd Asian Pacific Sympo. on Blasting Techniques, Xiamen, China, pp. 403-407.

[14] Siskind, D.E., Stagg, M.S., Kopp, J.W. and Dowding, C.H., 1980, Structure Response and Damage Produced by Ground Vibration from Surface Mine Blasting, USBM RI 8507, p. 111.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

All Issue