02447nam a2200265 a 4500 20260817161805.0 .b12341769 Nguyen, Van Son Aerodynamic interference effects of surrounding buildings on a tall building with 3d coupled modes Pathumthani : Asian Institute of Technology, 2009 1 online resource A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology The interference effects from one and many neighboring buildings that do not have identical shapes on tall buildings with complex configuration and vibration mode shapes are studied by a series of wind tunnel tests and numerical analysis. Moreover, to have a more practical view, two real building cases will be investigated in this study to understand about aerodynamic interference effects of surrounding buildings on the principle buildings having complex geometry and vibration characteristics (3D coupled modes). The results show that the 3D coupling analysis slightly influences responses of the first building having lowcoupled effects, but it significantly affects responses of the second building having highcoupled effects. The interfering effects on the buildings{u2019} responses such as displacements and accelerations are investigated by computing interference factors (IF). The shielding, channeling effects and vortex-shedding phenomenon also occur due to the presence of interfering building(s). The shielding and vortex-shedding phenomena have stronger effects on responses of the first building. Namely, while shielding effects reduce the maximum lateral displacements about 2.0 times, highly turbulent wind forces induced by vortex-shedding phenomenon from upstream building increase the maximum acceleration about 3.26 times. Tall buildings Pennung Warnitchai, Chairperson Anwar, Naveed, Examination Committee Noppadol Phien-Wej, Examination Committee Netherlands Ministry for Development Cooperation, Scholarship donor Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B04774 .b12341769 mnait j 240423 0 200108 m a j 0 2679 2679