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Experimental evaluation of Bi-directionally unbonded prestressed concrete panel impact-resistance behavior under impact loading

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Experimental evaluation of Bi-directionally unbonded prestressed concrete panel impact-resistance behavior under impact loading
นักวิจัย : Yi, Na-Hyun , Lee, Sang-Won , Lee, Seung-Jae , Kim, Jang-Ho Jay
คำค้น : DRNTU::Engineering::Civil engineering::Structures and design , DRNTU::Engineering::Civil engineering::Construction technology
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Yi, N.-H., Lee, S.-W., Lee, S.-J., & Kim, J.-H. J. (2013). Experimental Evaluation of Bi-directionally Unbonded Prestressed Concrete Panel Impact-Resistance Behavior under Impact Loading. Journal of the Korea Concrete Institute, 25(5), 485-496. , http://hdl.handle.net/10220/19474 , http://dx.doi.org/10.4334/JKCI.2013.25.5.485 , 180253
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of the Korea Concrete Institute
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In recent years, frequent terror or military attacks by explosion or impact accidents have occurred. Examplary case of these attacks were World Trade Center collapse and US Department of Defense Pentagon attack on Sept. 11 of 2001. These attacks of the civil infrastructure have induced numerous casualties and property damage, which raised public concerns and anxiety of potential terrorist attacks. However, a existing design procedure for civil infrastructures do not consider a protective design for extreme loading scenario. Also, the extreme loading researches of prestressed concrete (PSC) member, which widely used for nuclear containment vessel, gas tank, bridges, and tunnel, are insufficient due to experimental limitations of loading characteristics. To protect concrete structures against extreme loading such as explosion and impact with high strain rate, understanding of the effect, characteristic, and propagation mechanism of extreme loadings on structures is needed. Therefore, in this paper, to evaluate the impact resistance capacity and its protective performance of bi-directional unbonded prestressed concrete member, impact tests were carried out on for reinforced concrete (RC), prestressed concrete without rebar (PS), prestressed concrete with rebar (PSR, general PSC) specimens. According to test site conditions, impact tests were performed with 14 kN impactor with drop height of 10 m, 5 m, 4 m for preliminary tests and 3.5 m for main tests. Also, in this study, the procedure, layout, and measurement system of impact tests were established. The impact resistance capacity was measured using crack patterns, damage rates, measuring value such as displacement, acceleration, and residual structural strength. The results can be used as basic research references for related research areas, which include protective design and impact numerical simulation under impact loading.

บรรณานุกรม :
Yi, Na-Hyun , Lee, Sang-Won , Lee, Seung-Jae , Kim, Jang-Ho Jay . (2556). Experimental evaluation of Bi-directionally unbonded prestressed concrete panel impact-resistance behavior under impact loading.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yi, Na-Hyun , Lee, Sang-Won , Lee, Seung-Jae , Kim, Jang-Ho Jay . 2556. "Experimental evaluation of Bi-directionally unbonded prestressed concrete panel impact-resistance behavior under impact loading".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yi, Na-Hyun , Lee, Sang-Won , Lee, Seung-Jae , Kim, Jang-Ho Jay . "Experimental evaluation of Bi-directionally unbonded prestressed concrete panel impact-resistance behavior under impact loading."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Yi, Na-Hyun , Lee, Sang-Won , Lee, Seung-Jae , Kim, Jang-Ho Jay . Experimental evaluation of Bi-directionally unbonded prestressed concrete panel impact-resistance behavior under impact loading. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.