兰州地铁控制中心框架-双核心筒结构设计与分析

摘要

The control center main structure of Lanzhou subway lines 1-5 is designed for 100-year service life and constructed in reinforced concrete frame-dual-core structure system. This paper describes the load value, selected ground motion parameters, durability and other parameters and clarifies the general structural arrangement, and uses STAWE, PMSAP, ETABS software to conduct overall calculation and comparative analysis of the main structure and complementary calculation with elastic time history analysis method. Through computational analysis, key parts of the structure are identified and appropriate seismic measures are taken accordingly. The results show that the main structure has good lateral stiffness, better seismic performance and proves an economical and applicable structural system in high-rise buildings.%兰州地铁1~5号线控制中心主体结构为设计使用年限100年建筑，采用钢筋混凝土框架-双核心筒结构体系。介绍荷载取值、地震动参数、耐久性等参数的选取，阐明结构布置的整体构思，并采用 STAWE、PMSAP、ETABS软件对主体结构进行整体计算对比分析，同时采用弹性时程分析法进行补充计算分析。通过计算分析，找出结构的关键部位，并采取针对性的抗震加强措施。分析结果表明：在地震作用下，主体结构具有很好的抗侧刚度、较好的抗震性能，是高层建筑结构中较为经济、合理的一种结构体系。