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008 180614 2017 th uu m rtt 0| a1eng d
035 _a.b1220271x
099 9 _aAIT Thesis no.ST-17-26
100 0 _aJenpop Chaikongthong
245 1 0 _aAerodynamic interferance effects of tall buildings on dynamic wind pressure and load combination due to two interfering buildings
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2017
300 _a105 leaves :
_bill. (some col.) +
_e1 online resource
490 1 _aThesis ;
_vno. ST-17-26
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structure Engineering, School of Engineering and Technology
502 _aThesis (M.Eng.) - Asian Institute of Technology, 2017
520 _aThe aerodynamic interference effect on standard tall building was investigated by using wind tunnel model tests. The standard principle model of the experiment is the CAARC building. The experiment was conducted inside a boundary layer wind tunnel that simulated a sub-urban wind profile condition. The first part of the experiment was conducted High Frequency Pressure Integration (HFPI) technique to measuring modal forces for fundamental sway modes and torsional mode on isolated case. Moreover, the second part of the experiment investigates the effect by two interfering buildings, geometry of interfering model is same as the CAARC principle model. The correlation coefficient amongst three force components were identified and plotted the contour maps for five interfering cases. From this approach, it was found that the correlation was high between the across wind and torsional moment while there almost no correlation between the other two relation forces in the isolated case, the correlation can be modified by the interference effect, in some case the unfounded high correlation was observed by the existing of the interfering models in all deferent cases. The analysis also focuses on the load combination among the interference effect, load combination from both Probability-base optimization and AIJ recommendation approaches were calculated and compared. The comparison can be explained that the Probability-base optimization technique is convenient for any correlation factors of the structure while the AIJ recommendation approach is appropriate for some limit condition. Another investigation target on the percentage in load case of Probability-base optimization technique, the highest percentage of the secondary load was plotted as a contour map. The pattern of the highest secondary load contour maps is comparable to the correlation coefficient contour, it can be expressed that highest secondary percentage was high when the principle existed on the high force correlation area, On the other hand, the percentage is significantly low caused by the low correlation on that point.
650 0 _aTall buildings
_xAerodynamics
650 0 _aBuildings
_xWind stresses
700 0 _aPennung Warnitchai,
_eChairperson
700 0 _aPunchet Thammarak,
_eExamination Committee
700 0 _aThanakorn Pheeraphan,
_eExamination Committee
710 2 _aRoyal Thai Government,
_eScholarship donor
710 2 _aAsian Institute of Technology Fellowship,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. ST-17-26
856 _3Full-text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B05547
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