Dynamics Analysis For Wind Loading And High-Rise Construction Coupling Effects

Wind load is one of high-rise construction main lateral loads, under the structure wind load function dynamics analysis provides scientific basis for the high-rise construction design. At present the running free windward load research relative quite mature, The usual application spectrum analysis method describes the pulsation wind pressure, does together by the average wind pressure and the pulsation wind pressure uses for to analyze the structure power response under the structure wind load. The various countries' standard all has made the corresponding simplification , the reduction formula form applies in the project practice. Regarding structure under wind load function crosswind upward power response, because comes the wind to receive running free to the wall surface impediment, has the vortex tattered and wind direction change, with the running free wind cutting hit ,the wind power become further complex. At present our country in the computation in the structure crosswind only to make in the project to the circular section structure to simplify the computation narration, has not made the detailed description on other contact surface form. description on other contact surface form. Japanese and the Canadian standard has made the corresponding simplification computation to the rectangular section structure by crosswind windward load function.This article to predecessor research results study summary, we use random vibration theory as well as the science computation software simulation engineering structure responds the result under the wind load function, through the non-coupling function and the coupling function contrast analysis, obtains the corresponding wind and high-level stands tall and erect the structure coupling function dynamics analysis result.This article simulation pulsation wind load, and exerts by this load to many constructs, when consideration wind and structure coupling function, its displacement and the acceleration peak value all have reduce, when uses the similar plane form, the change structure overall highly or the component size coupling function makes the contrast with the non-coupling function, finally demonstrated, along with increases highly and the structure frequency reduces the coupling function to have the enhancement, therefore in the structural design will be supposed to consider from now on the wind and high-rise structure coupling function influence. The crosswind windward load action mechanism complexity, In work foundation of predecessor works, obtains the response data on different highly structure by used the reduction formula of crosswind, and with compares the response of running free, the computed result indicated, the structure along with increases highly, The response of crosswind has increases tendency.