| Author(s): |
S Jang; L L. Lu; Fahim H. Sadek; Emil Simiu; |
| Title: |
Database-Assisted Wind Load Capacity Estimates for Low-Rise Steel Frames |
| Published: |
December 01, 2002 |
| Abstract: |
A comparative study is presented of the estimated wind load capacities of low-rise steel building frames based on loading patterns (magnitude and distribution) established from aerodynamic databases on the one hand, and on patterns specified in the ASCE 7 Standard on the other. The estimated capacities are based on the assumption, verified by numerous sets of calculations, and also used in the development of the ASCE 7 Standard, that the most unfavorable wind load occurs at the instant in time when the peak knee-joint bending moment is attained. The estimates are obtained from detailed inelastic finite-element analyses of the frames with ultimate states associated with local and global instabilities. It is shown that the estimates based on the aerodynamic database are more realistic and risk-consistent and can therefore lead to safer designs at lower costs. These estimates represent a significant advance over the ASCE 7 Standard-based estimates. |
| Citation: |
Journal of Structural Engineering--ASCE |
| Volume: |
128 |
| Issue: |
No. 12 |
| Keywords: |
building codes;building technology;database-assisted design;finite element analysis;nonlinear analysis;reliability;steel structures;ultimate strength;wind force |
| Research Areas: |
Building and Fire Research |
