摘要
为研究与地铁车站同位建设的机场高架桥方案,本文分析对比了同位建设的不同方案及特点,并结合工程案例采用高架桥横跨地铁车站方案,优化结构将腹板纵向传力途径改为设置横隔板横向传力。通过有限元软件建立折面梁格模型,进行了精细化计算分析,结果表明:由于桥梁宽跨比较大,结构受力的空间效应明显,各道横梁、纵梁的剪力分配均有很大不同。本文研究结果验证了方案的可行性,可为类似项目和工程实践提供参考。
In order to study the scheme of the airport viaduct co-located with the subway station,the different schemes and characteristics of the co-located construction are analyzed and compared;combined with the engineering case,the scheme on viaduct across the subway station is adopted,and the structure is optimized to change the longitudinal force transmission path of the web to set the transverse force transmission of the diaphragm.The finite element software is used to establish the folded surface grid beam model,while refined calculation and analysis are carried out.The results show that,due to the relatively large width and span of the bridge,and the obvious spatial effect of structural stress,the shear force distribution of each beam and longitudinal beam is very different.The results verify the feasibility of the scheme and can provide a reference for similar projects and engineering practices.
作者
刘承启
闫杰栋
LIU Chengqi;YAN Jiedong(Shandong Branch of China Southwest Architectural Design and Research Institute Co.,Ltd.,Qingdao 266000,Shandong,China)
出处
《工程建设》
2022年第3期54-60,共7页
Engineering Construction
关键词
地铁车站
机场高架桥
同位建设
超宽箱梁
折面梁格
subway station
airport viaduct
co-located construction
extra-wide box girder
folded surface grid beam
