1. 哈尔滨工业大学 结构工程灾变与控制教育部重点实验室,哈尔滨 150090;
2.哈尔滨工业大学 土木工程学院,哈尔滨 150090;
3.Centre for Infrastructure Performance and Reliability, The University of Newcastle, New South Wales, 2308, Australia
Dynamic responses of Kiewitt 8 single-Layer reticulated domes subjected to outside explosion loads
Ma Jialu1,2 Zhi Xudong1,2 Fan Feng1,2 Stewart G. 3
1.Key Laboratory of Structural Engineering Disaster and Control, Harbin Institute of Technology, Harbin 150090, China;
2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China;
3. Centre for Infrastructure Performance and Reliability, The University of Newcastle, New South Wales, 2308, Australia
In order to know the design methods of single-layer reticulated domes, a Kiewitt 8 dome of 40 m span has been set up by the explicit packages LS-DYNA to investigate the dynamic responses. The comprehensive finite element model which has considered the non-structural components (including purlins, purlin props, rivets and roof panels) is used in this paper. The blast loading is generated by ConWep, and applied on the dome directly. Besides, different structural ratios of rise to span, component dimensions and material properties have been taken into the parametric studies. Form the results of maximum nodal displacements and plastic developments, the conclusion could be drawn that the ratios of rise to span, dimensions of cross sections, thicknesses of roof panels and live loads would seriously affect the dynamic responses. At last, the concept and method of safety distance for the single-layer reticulated domes subjected to outside explosion is proposed.
马加路1,2,支旭东1,2,范 峰1,2, Stewart G.3. 外爆荷载下Kiewitt 8型单层球面网壳的动力响应[J]. 振动与冲击, 2015, 34(21): 65-70.
Ma Jialu1,2 Zhi Xudong1,2 Fan Feng1,2 Stewart G. 3. Dynamic responses of Kiewitt 8 single-Layer reticulated domes subjected to outside explosion loads. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(21): 65-70.
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