三星堆古蜀文化遗址博物馆大型螺旋坡道结构设计与分析  

Structural design and analysis of large⁃scale spiral ramp in Sanxingdui Museum of ancient Shu cultural relics

作　　者：杨文[1] 赖程钢 刘晓舟[1] 龙卫国[1] 肖克艰[1] 向新岸[1] 文见 YANG Wen;LAI Chenggang;LIU Xiaozhou;LONG Weiguo;XIAO Kejian;XIANG Xin’an;WEN Jian(China Southwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610042,China)

机构地区：[1]中国建筑西南设计研究院有限公司,成都610042

出　　处：《建筑结构》2024年第12期1-6,共6页Building Structure

摘　　要：三星堆古蜀文化遗址博物馆中庭的螺旋坡道采用钢箱梁结构体系,最大半径28.7m,水平投影长度118.5m。介绍了大型螺旋坡道结构体系选型和边界条件的对比过程,采用通用计算软件MIDAS Gen建立多尺度整体模型考虑螺旋坡道和主体结构的相互作用,通过静力分析和反应谱分析考察螺旋坡道在不同荷载作用下的承载能力和变形,并采用有限元软件ANSYS建立分析模型进行连续倒塌分析。结果表明,螺旋坡道采用钢箱梁结构具有较好的整体刚度,静力荷载和地震作用下坡道的应力和变形均满足规范要求,并具有较好的抗连续倒塌能力。The spiral ramp in the atrium of Sanxingdui Museum of ancient Shu cultural relics adopts a steel box girder structure,with a maximum radius of 287m and a horizontal projection length of 1185m.The selection of large-scale spiral ramp structural systems and the comparison process of boundary conditions were introduced.A multi-scale overall model was established using the general calculation software MIDAS Gen to consider the interaction between spiral ramp and main structure.Through static analysis and response spectrum analysis,the bearing capacity and deformation of spiral ramp under different loads were investigated.And the finite element software ANSYS was used to establish an analysis model for progressive collapse analysis.The analysis results show that the spiral ramp adopts the steel box girder structure with good overall stiffness.The stress and deformation of the spiral ramp under static load and earthquake meet the requirements of the code,and has good ability to progressive collapse.

关 键 词：三星堆古蜀文化遗址博物馆 大型螺旋坡道 钢箱梁 结构选型 支座设计 多尺度建模 连续倒塌 

分 类 号：TU393.3[建筑科学—结构工程]