钢板沥青复合结构防护下空心高墩的抗爆性能

Anti-Blast Performance of Hollow High Pier Protected by Steel-Plate Asphalt Composite Structure

针对空心高墩的抗爆防护需求,鉴于沥青良好的阻尼耗能特性和与钢板组合在强度和刚度上的优势,利用Ansys/LS-DYNA软件对钢板沥青防护下高墩的抗爆性能进行研究。结果表明:爆炸荷载作用下钢板沥青防护的高墩同未防护相比毁伤面积明显减小,抗爆能力显著提高,其残余承载能力能够提高45%,可为钢板沥青在空心高墩抗爆防护中的应用技术研究提供参考。

To protect hollow piers against explosion,the paper takes advantage of both good damping energy characteristic,and high strength and rigidity of asphalt when combined with steel-plate,and utilizes Ansys/LS-DYNA software to analyze anti-blast performance of high piers under the protection of steel-plate and asphalt. The blast results show that a high pier with this composite protection has less damage area and more anti-blast capability than one without protection,and increases residual bearing capacity by 45 percent,thus paving the ways for application of steel-plate asphalt structure to protect hollow high piers from explosion.