The Analysis Of The Dynamic Characteristics And Earthquake Response In The Structure Of The Mansion Of YaTingYuan--On Some Problems Of The Structure Of High-Rise Building

The Analysis of the structure dynamic-characteristic and earthquake response is vital in the structure design of the high-rise building. The analysis of the structure dynamic characteristic and earthquake response is the very effective means of deeply learning the structure earthquake response performance and dynamic response property, especially in the high-rise building with being sensitive to dynamic loading. So, assuring the structure dynamic characteristic and earthquake response supplies the important basis for the structure design and the assessment of structure performance. The research object in thistext is the actual project--the mansion of YaTingYuan (40 layers above the ground,125.4 meter high ) .The structure-design is by SATWE and the analysis of the structure dynamic characteristic and earthquake response by SAP2000,whose calculation models are set up according to the actual size of the structure .In SATWE, the analysis model of beam and column is simulated by frame-element , slab is plane-element , shear-wall is wall-element and slab is infinitely rigid in the internal and zero in the external ; In SAP2000 , beam and column is frame-element , slab and shear-wall is shell-element and slab is elastic floor. Trough comparing the analysis results of two kinds of calculation model, drawing the following conclusion : (1) This structure-design satisfies the standard;(2)In analyzing the complicated high-rise building with transfer-floor , it is very necessary to adopt at least two three-dimension-space analysis procedures with different mechanic model and use the Response-Spectrum Analysis and Time-History Analysis to analyze thestructure earthquake response;(3) The calculation model with elastic slab is better than the other with being infinitely rigid in the internal slab and zero in the external slab, which reflects the real load-function situation of the structure. The stiffness of the former is less than the latter, and the natural periods of the former is longer than the latter. In addition to, the slab model influent the structure-torsion greater. (4) The stiffness in Y-direction is nearly equal to that in X-direction. This structure- globosity is better. And ,the structure weak-regions lie respectively in the transfer-floor, the vicinity of the 20th floor and the roof , which need to make the measure to avoid the structure plastic deformation under the action of stronger earthquake.(5)The vibration form appears the coupling of move and torsion, electing the first 15 modes to analyze can reflect accurately the actual load-function situation of the structure. (6)By analyzing the result of Time-History-Analysis, it is vital to adopt the right earthquake-wave, which determines the design consideration by the light of the results of the static analysis or the dynamic analysis. In addition to, acquiring the frequency-spectrum response of imported earthquake-wave can be better to analyze the earthquake response of the structure.