Analysis of Loss Influence on Key Members of Frame Structures Subjected to Blast Loading



With increase of terrorist blast, it is becoming more important for buildings to resist the blast load than before. This paper focuses on analysis of loss influence on key members of frame structures subjected to blast loading. The performance of a 5 storey frame structure with damage was evaluated on the assumption that whose key columns and beams had been lost after blast. By comparing the deformation and the internal force of the original frame with the corresponding items of the incomplete one, the impact of the key columns or beams on the performances of the whole frame structure was discussed. Numerical results show that the loss of either the key columns or the key beams will endanger the whole structure. Especially, the deformation and the internal force of the members adjacent to the missing key column have obvious increases. Consequently, the loss of the key column exerts a more serious impact on the building than that of the key beam.




Chaohe Chen, Yong Huang and Guangfan Li






R. L. Yang et al., "Analysis of Loss Influence on Key Members of Frame Structures Subjected to Blast Loading", Advanced Materials Research, Vols. 243-249, pp. 2473-2477, 2011


May 2011




[1] Xiuli Du, Weizhang Liao and Zhimin Tian. State-of-the-art in the Dynamic Responses and Blast Resistant Measures of the Buildings under Explosive Loads, Journal of Beijing University of Technology. Vol. 34(2008), part 3, pp.278-287. (in Chinese).

[2] Zhimin Tian, Xiubo Zhang and Xiuli Du. Conceptual design of important buildings to mitigate terrorist explosion attacks. China Civil Engineering Journal. Vol. 40(2007), part 1, pp.34-41. (in Chinese).

[3] Wible R C. Architectural security codes and guidelines. New York: Mc Graw Hill, (2007).

[4] Rong Chen, Haitao Zheng and Songtao Xue. Analysis on Transverse Impact Response of an Unrestrained Timoshenko Beam. Journal of Applied Mathematics and Mechanics. Vol. 25(2004), part 11, pp.1195-1202. (in Chinese).

[5] Lin Du, Shaoqing Shi, Xiangji Zhang. FEA About Capacity of Resisting Explosion Inside of Short Concrete Column With Steel Tube Confined. Journal of Chongqing University. Vol. 24(2004), part 10, pp.142-144. (in Chinese ).

[6] Zhendong Zhao, Jiangrong Zhong and Shizhou Yu. Study on damage to reinforced concrete structures by impacting of an aircraft. Journal of Earthquake Engineering and Engineering Vibration. Vol. 23(2003), part 5, pp.93-94. (in Chinese).

[7] Astaneh-asl. Progressive collapse prevention in new and existing buildings. Proc. of the 9th Arab Structural Engineering Conf., part 9, pp.253-359(2003).

[8] Liu J H, and Jones N. Experimental Investigation of Clamed Beams Struck Transversely by a Mass, Journal of Impact Engineering. Vol. 6(1987), part 4, p.303.

为了查看相关信息, 需 Login.