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Ahuja, Ashok Kumar
- Effect of Height Variation of Closely Located Interfering Buildings on Wind Loads on Tall Buildings
Abstract Views :112 |
PDF Views:80
Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology, Roorkee-247667, Uttarakhand, IN
1 Department of Civil Engineering, Indian Institute of Technology, Roorkee-247667, Uttarakhand, IN
Source
International Journal of Earth Sciences and Engineering, Vol 10, No 2 (2017), Pagination: 378-382Abstract
This research paper investigates the modification of wind loads on a tall building (principal building) having rectangular cross-sectional shape due to the variation in height of two closely located interfering buildings having a similar plan shape. The models of the three buildings (principal and interfering buildings) are placed in a U shape plan for the study. The heights of interfering building models are varied in two different manners: (1). Height of both the interfering building models is reduced simultaneously (2). Height of only one of the interfering building model is reduced. Wind tunnel experiments are undertaken using five component force balance load cell and the results are reported in the form of X-Y plots. The interference effect causes increase in the torsional moment as height difference of the two interfering buildings increase, also shielding effect causes reduction in the along wind force as height of the interfering buildings increases. Value of torsion on the principal building is observed to be as high as 33 times of that in the isolated case. However, a reduction is high as 69 percent is observed in the force in along wind direction due to shielding.Keywords
Wind Tunnel, Tall Building, Rectangular Plan, Interference Effects, Height Variation, U-Shape, Force Measurement.- Wind Pressure Distribution on Sky Light Roof
Abstract Views :122 |
PDF Views:107
Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology, Roorkee-247667, Uttarakhand, IN
1 Department of Civil Engineering, Indian Institute of Technology, Roorkee-247667, Uttarakhand, IN
Source
International Journal of Earth Sciences and Engineering, Vol 10, No 2 (2017), Pagination: 412-417Abstract
Industrial buildings are generally provided with sloping roofs with the provision of the entry of natural light through it. Sky light roof is one of such roofs. The information available in the literature regarding wind pressure distribution on sky light roof is limited. An effort has, therefore, been made to carry out an experimental study on the model of low-rise building with Sky light roof in order to generate more information about wind pressure distribution on it. Inflexible model of the rectangular plan low-rise building is made of Perspex sheet. It is provided with many pressure points on the upper surface of the roof. The model is tested in an open circuit boundary layer wind tunnel to measure values of wind pressures at all pressure points. Wind is made to hit the model at seven wind frequency edges from 0° to 90° at an interim of 15°. Values of mean wind pressure coefficients are evaluated from the measured values of wind pressures and contours are plotted. Values of mean wind pressure coefficients obtained experimentally are also compared with those available in the literature.Keywords
Wind Pressure Coefficient, Sky Light Roof, Low-Rise Building, Wind Incidence Angle.- Effect of Corner Configuration on Wind Pressure Distribution on Tall Buildings
Abstract Views :103 |
PDF Views:91
Authors
Affiliations
1 Structural Engineering, IIT Roorkee, Roorkee-247667, Uttarakhand, IN
2 Wind Engineering, IIT Roorkee, Roorkee-247667, Uttarakhand, IN
1 Structural Engineering, IIT Roorkee, Roorkee-247667, Uttarakhand, IN
2 Wind Engineering, IIT Roorkee, Roorkee-247667, Uttarakhand, IN