论文部分内容阅读
康力电梯测试塔地上36层,高度268m,结构高宽比达11.4,采用筒中筒结构体系,属超限高层结构。选用ABAQUS和PERFORM-3D软件,基于不同的积分求解方式和分析假定,对结构进行了罕遇地震下的弹塑性时程分析。结果表明,两者在结构整体抗震性能、破坏情况等方面的计算结果基本一致。考虑一组人工波(X向和Y向)、两组天然波(X向和Y向)共6个工况,对比分析结构在地震作用下的变形、内力和损伤情况,并为优化结构设计和加强薄弱部位提供参考依据。结果表明,结构在罕遇地震下最大弹塑性层间位移角满足规范和性能目标要求;连梁作为第一道防线,出现不同程度的损伤,达到耗能设计目的;结构整体震害较轻,满足“大震不倒”的设防要求。
Kangli Elevator test tower 36 floors above ground, the height of 268m, the structure aspect ratio of 11.4, the use of tube in the cylinder structure system, is an overrun high-rise structure. The ABAQUS and PERFORM-3D softwares were used to analyze the elasto-plastic time-history of the structure under rare earthquakes based on different integral solution methods and analysis assumptions. The results show that the calculated results are in good agreement with the overall seismic performance and damage of the structure. Considering a series of artificial wave (X-direction and Y-direction) and two natural waves (X-direction and Y-direction), a total of 6 working conditions are considered. The deformation, internal forces and damage of the structure under earthquake action are compared and analyzed. And strengthen the weak parts provide a reference. The results show that the maximum elastic-plastic interlayer displacement angle under rare earthquakes meets the requirements of the standard and performance objectives. As the first line of defense, the even beam has different degrees of damage, achieving the purpose of energy dissipation design. The overall structural damage is lighter, Meet the “earthquake does not fall,” the fortification requirements.