Joint Probability and correlation characteristics of wind loads in medium and high rise buildings

抄録

Joint probability and the correlation characteristics of medium and high rise buildings are analysed and the well correlated load components are discussed. Three medium rise and four high rise models are considered for the analysis with different B, D and H ratios. Force and moment coefficients acting on the building models are calculated from the pressure integration on the model surfaces. The results discussed in terms of joint probability distributions and both correlation and absolute value correlation of the various components. In this analysis the kernel density estimation has been used to calculate the joint probability density. The joint probability distribution lines shows from 0 to 100 percentile from inside out. It shows that there is the maxima value of any two components and contribute to the extreme values as shown . The joint probability of CD - CMT at the different angles and the directional effect is also discussed in this paper. The results shows for the joint probability and the correlation coefficients can show the combination between the force components. For this explanation the absolute value correlation is also considered for the analysis and shown. For CD- CMT the correlation coefficient increases from 0o and starts decreases after 30o. For the CD-CMT the correlation value increases positively from 0o and then decreases from around 20o. Inorder to analyse the effect of combination on the structure of the building, the Normal stress has been calculated and discussed.