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Chen L.,PLA University of Science and Technology | Fang Q.,PLA University of Science and Technology | Zhang Y.,The 4th Engineering Design and Research Academy | Zhang Y.-D.,PLA University of Science and Technology
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2013

A practical analytical method for the local and overall failures of RC slabs and arches under the combination of the blast wave and fragments was presented. The combined effects of the blast wave and fragments of MK82 exploded at 10 m away from the structures were analyzed using FE software. The analytical results indicate that the fragments of the warhead have little effects on the overall responses of the structures. Since the fragments reach the structures earlier than the blast wave, the local damage of the structures caused by the penetration of the fragments has little effect on the overall responses of the RC slab and arch, the blast wave is the prominence influence to the typical structures. Source


Wang Z.,Beihang University | Wang Z.,The Logistics Academy | Lin W.,Beijing Institute of Technology | Lin W.,The 4th Engineering Design and Research Academy | And 2 more authors.
Jiefangjun Ligong Daxue Xuebao/Journal of PLA University of Science and Technology (Natural Science Edition) | Year: 2013

Such characteristics of multifarious content, various format and scattered distribution make it difficult for engineering camouflage feature data to be unified description, centralized stored and quickly searched. To solve these problems, the paper constructed a web-based engineering camouflage feature information resource platform. Relying on the platform, such resources can be overall administrated and fully utilized. With formalized method, the platform model was described, and multi-view structures were constructed by means of software engineering. The platform software prototype of the mass of the engineering camouflage data resource management was realized by the M-L algorithm and Web-Tree scheme. The feasibility of the model and high performance of the algorithm technique were validated by the enormous test data. Source


Zhao J.-J.,The 4th Engineering Design and Research Academy | Wu P.-A.,The 4th Engineering Design and Research Academy | Liu F.,The 4th Engineering Design and Research Academy | Hu S.-W.,The 4th Engineering Design and Research Academy | Liu S.,The 4th Engineering Design and Research Academy
Jiefangjun Ligong Daxue Xuebao/Journal of PLA University of Science and Technology (Natural Science Edition) | Year: 2011

To solve the problems in rapid packing for civil air defense works, the anti-explosion packing method was adopted to construct blast wall by use of hybrid fibers reinforced light-weight aggregate concrete composite beams strengthened with hybrid sheets. The reliability of the anti-explosion packing method and the gas defense airtight method was validated by material tests, structural static and dynamic model tests and airtight performance test of passageway. Compared to the current packing method of passageway with ordinary precast RC beams, the anti-explosion packing and gas defense airtight method has many advantages such as the higher anti-explosion capacity, the more reliable gas defense airtight performance, the shorter exchange time, the lighter packing components, the more economic engineering cost, and the higher engineering applicable value. Thereby it builds up a solid technical foundation for functional exchange between peacetime and wartime of civil air defense work. Source

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