Investigation Into Static And Dynamic Response Of Solar Chimney Under Different Kinds Of Loads

Super-high-rise solar chimney is the iconic part of solar updraft tower plant system,due to its huge size, it is difficult to design and construct. By using numerical simulationmethod, a1000m high solar chimney was applied to analyze its static behaviors underwind loads and self-weight, as well as the dynamic performance under fluctuating windand different kinds of earthquakes. This research can provide a reference for the structuredesign of solar chimney.Firstly, analyzed the main load on solar chimney, studied the static behaviors underboundary layer wind load and self-weight, the eigenvalue bucking and its primarydynamic performances. Moreover, researches on the role of stiffening rings in the structuredesign of solar chimney was performed, according to the results, an optimal design wasproceeded with regard to the number, the stiffness and the position of the rings.Secondly, by using harmonic synthetic method and viewing Simiu spectrum as targetspectrum, simulated the speed schedule of boundary layer wind and downburstrespectively, analyzed the dynamic response of solar chimney under two kinds offluctuating wind and obtained its wind-induced response characteristics.Finally, appropriate seismic records were used to analyze the seismic time-historyresponse of solar chimney. Moreover, a comparison between different responses undernear-fault earthquake and regular earthquakes was made and the significant effect of pulseeffect of near-fault earthquake to long period structure was analyzed.The static and dynamic responses of solar chimney under different kinds of loadshave been analyzed and some conclusions have been drawn, which are highly valued inengineering applications.