哈尔滨工程大学学报Issue(12)：1524-1530,7.DOI:10.3969/j.issn.1006-7043.201212025
爆炸作用下刚塑性简支梁的塑性动力响应分析
Analysis of the plastic dynamic response to a rigid-plastic simply supported beam subjected to explosive loading
摘要
Abstract
In order to study the plastic dynamic response of a beam-slab structure subjected to the explosive load-ing, the blast load was simplified to double exponential loading and uniformly applied to the rigid-plastic simply supported steel beam .Then the movement of the beam at different moments was divided into four exercise modes and the relation between the largest deformation and time was studied .After the moving plastic hinge appeared , the beam movement of every stage after that was analyzed based on the characteristics of the moving plastic hinge , and the relation between the location of the plastic hinge and the motion law of the steel beam was obtained .Thus the formulas of the parameters of the beam including deflection , velocity, angle of rotation, etc., changing with time were obtained and eventually , the maximum residual deflection of the simply supported steel beam subjected to the explosive loading was obtained .Finally, the theoretical calculation results and the numerical simulation results were compared through an example and the two results were found to be basically in agreement .关键词
钢梁/简支梁/塑性动力响应/爆炸荷载/移行铰/刚塑性模型Key words
steel beam/simply supported beam/plastic dynanic response/explosive loading/moving plastic hinge/rigid-plastic model分类
数理科学引用本文复制引用
何建,郝彬,薛贵省..爆炸作用下刚塑性简支梁的塑性动力响应分析[J].哈尔滨工程大学学报,2013,(12):1524-1530,7.基金项目
国家自然科学基金资助项目 （）
