Location

London

Event Website

http://www.csce2016.ca/

Description

This paper summarizes the findings of extensive wind tunnel parametric investigations on wind-induced torsion acting on rectangular flat- and gable-roofed buildings. Experiments collected data for different configurations in terms of terrain exposure, wind direction and building height. In addition, wind load combinations (i.e. shear forces and torsion) in transverse and longitudinal building directions were examined. Comparisons with the results obtained from provisions specified in current design standards and codes of practice were also carried out. Three building models (scaled at 1:400) have the same horizontal dimensions (length = 61 m, width = 39 m) but with different gabled-roof angles (0o, 18.5o, and 45o). All building models were tested at different eave building heights (6, 12, 25, 30, 40, 50 and 60 m) in open and urban terrain exposures for different wind directions (every 15o). Figure 1 presents the three building models in addition to a schematic representative of external pressure distributions on building envelope at a certain instant, the exerted shear forces (FX, FY) and torsional moment (MT). The synchronized wind tunnel measurements are presented in terms of pressures, shear, and torsional coefficients.


Share

COinS
 
Jun 1st, 12:00 AM Jun 4th, 12:00 AM

NDM-550: COMPREHENSIVE STUDY OF WIND-INDUCED TORSIONAL LOADS ON LOW- AND MEDIUM-RISE BUILDINGS

London

This paper summarizes the findings of extensive wind tunnel parametric investigations on wind-induced torsion acting on rectangular flat- and gable-roofed buildings. Experiments collected data for different configurations in terms of terrain exposure, wind direction and building height. In addition, wind load combinations (i.e. shear forces and torsion) in transverse and longitudinal building directions were examined. Comparisons with the results obtained from provisions specified in current design standards and codes of practice were also carried out. Three building models (scaled at 1:400) have the same horizontal dimensions (length = 61 m, width = 39 m) but with different gabled-roof angles (0o, 18.5o, and 45o). All building models were tested at different eave building heights (6, 12, 25, 30, 40, 50 and 60 m) in open and urban terrain exposures for different wind directions (every 15o). Figure 1 presents the three building models in addition to a schematic representative of external pressure distributions on building envelope at a certain instant, the exerted shear forces (FX, FY) and torsional moment (MT). The synchronized wind tunnel measurements are presented in terms of pressures, shear, and torsional coefficients.

http://ir.lib.uwo.ca/csce2016/London/NaturalDisasterMitigation/33