地震作用下平阳府君阙破坏情况的数值模拟分析  

NUMERICAL SIMULATION ANALYSIS OF MIANYANG PINGYANG FUJUN GATEWAY UNDER EARTHQUAKE

作　　者：苏奇 肖维民 朱占元 阙明阳 

机构地区：[1]四川农业大学土木工程学院,都江堰611830 [2]村镇建设防灾减灾四川省高等学校工程研究中心,都江堰611830

出　　处：《工程地质学报》2017年第5期1374-1380,共7页Journal of Engineering Geology

摘　　要：绵阳平阳府君阙是全国重点文物保护单位,在汶川大地震中,平阳府君阙受到了历史上最为严重的损伤,阙体各部分出现了石块间扭曲错位、石块断裂和崩落等破坏情形,其稳定性受到显著影响。采用有限元时程分析法,利用Midas GTS软件建立阙体三维模型,通过输入汶川地震波时程曲线,模拟阙体在汶川地震波作用下的力学响应,并将计算结果与现场观测到的阙体破坏变形情况进行比较,结果表明:数值模拟结果与实际观测情况一致,能够反映阙体的真实破坏情况。Mianyang Pingyang Fujun gateway has been named as national key cultural relics protection units. It was most seriously damaged ever during the Wenchuan Earthquake. The parts of the gateway were destroyed. The rocks were twisted,dislocated,broken and caved in. The stability of the gateway was significantly affected. We use the Midas GTS software to establish body 3D model,input seismic time-history curve of Wenchuan. Finally,we compare the calculate results with the damage observed at the site. It shows that the numerical simulation results are in agreement with the actual observations. So,the numerical simulation results can reflect the true destruction of the towers.

关 键 词：平阳府君阙 时程分析法 有限元 地震作用 结构稳定性 

分 类 号：P511.2[天文地球—地质学]