NEHRP Clearinghouse
- Title
- Optimum Design of Braced and Unbraced Frames for Static, Seismic, and Wind Forces with UBC, ATC-3, and TJ-11.
- File
- PB87162988.pdf
- Author(s)
- Cheng, F. Y.; Juang, D. S.
- Source
- National Science Foundation, Washington, DC., December 1985, 379 p.
- Identifying Number(s)
- CIVIL ENGINEERING STUDY-85-10
- Abstract
- An Optimum design method is presented for two-dimensional steel structures subjected to static, dynamic, earthquake, and wind forces. The seismic input can be multicomponent of one horizontal coupling with vertical. The objective function can be either minimum weight or cost. A computer program, ODSEWS-2D-II, was developed for both analysis and design. 77 examples are provided to illustrate the proposed design method; the assessment of the ATC-3-06 including soil-structure interaction; the effectiveness of various bracing systems in resistance; the effect of the P-delta forces and the vertical excitations on the design; the stiffness distribution and the comparision of optimum solutions based on UBC, ATC-3, and TJ-11-78; the comparison of minimum weight and cost design; and the design resulting from story drift and displacement constraints.
- Keywords
- Seismic design; Static loads; Steel structures; Wind loads; Bracing; Frames; Earthquake engineering; ODSEWS-2D-II computer program; Building codes