孟祥瑞¹，杨大彬¹，吴金志¹，耿笑冰²，张毅刚¹
(1 北京工业大学空间结构研究中心，北京100124; 2 北京龙安华诚建筑设计有限公司，北京100053)

[摘要] 黄河口模型试验海域厅A上部结构采用三层网架（局部四层），下部支承结构采用26根钢筋混凝土柱。对其结构体系、受力特点以及荷载取值进行了介绍，对整体结构进行了静力分析、动力分析及抗震分析，研究了整体结构在多遇地震和罕遇地震下的抗震性能。通过分析指出了结构设计的薄弱位置，供类似工程参考。
[关键词] 大跨度三层网架；弹塑性时程分析；抗震性能

Design and Research on the Long-span Truss Structure of Yellow River Estuary Model Testing Hall
Meng Xiangrui¹, Yang Dabin¹, Wu Jinzhi¹, Geng Xiaobing², Zhang Yigang¹
(1Space Structure Research Center, Beijing University of Technology, Beijing 100124, China; 2 Beijing LongAnHuaCheng Architectural Design Co. , Ltd., Beijing 100053, China)

Abstract: The upper part of Yellow River Estuary Model Testing HallA is triple-layer space truss structure ( some part is fourfold-layer truss), and the lower part of the supporting system consist of 26 reinforced concrete columns. The structural system, mechanical characteristics and the load of the whole structure are described. Static analysis, dynamic analysis and seismic analysis are camed out. Seismic performance of the structure under frequent and rare earthquake are studied. Through the analysis the weak points of the structure are pointed out, and the result can provide reference for similar projects.
Keywords: large span triple-layer space truss structure; elasto-plastic time-history analysis; seismic performance