
复杂形体钢框架-钢板核心筒结构的抗震性能研究
Seismic performance of a complex shape steel frame-steel plate shear wall core tube structure
The dynamic characteristics of the super high-rise steel frame-steel plate shear wall (SPSW) core (scheme III) are studied with resorting to ABAQUS code. Numerical results indicate that with respect to the super high-rise steel frame-concentrically braced frame(CBF) core (scheme I),the scheme III has larger lateral resistant stiffness, thus with the smaller ratio of the first torsional period to the first translational one (referred here to as FTFTR) and less torsional effect. Strip model (SM) for steel plate shear walls (SPSWs) using tension-only strips not only can accurately capture (satisfactorily predict) their post-buckling behaviors, can save also costs of computation. Based on the commercially available finite-element software package ABAQUS, including a user subroutine, referred to as UEL for SM, the seismic responses of the structure under the 9 degree (620cm/s2) rare earthquakes are analyzed using the dynamic elasto-plastic time-history analysis to check the deformation indices and development of the plastic zones of the structure. Numerical results demonstrate that the inelastic deformation meet the requirements of code for seismic design of buildings. Likewise the middle story segments is the weaker part, which is right the slender-waist of the structure. Therefore, the Ningxia TV tower can meet the requirement of no damage under frequent earthquake, repairable damages under basic earthquake and no collapse under rare earthquakes.
抗震性能 / 钢板核心筒 / ABAQUS / 动力特性 / 弹塑性动力时程分析 {{custom_keyword}} /
Seismic performance / Steel plate shear wall core / ABAQUS code / Dynamic characteristics / Elasto-plastic dynamic time-history analysis {{custom_keyword}} /
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