Commenced in January 2007
Paper Count: 31824
Redundancy in Steel Frames with Masonry Infill Walls
Abstract:Structural redundancy is an interesting point in seismic design of structures. Initially, the structural redundancy is described as indeterminate degree of a system. Although many definitions are presented for redundancy in structures, recently the definition of structural redundancy has been related to the configuration of structural system and the number of lateral load transferring directions in the structure. The steel frames with infill walls are general systems in the constructing of usual residential buildings in some countries. It is obviously declared that the performance of structures will be affected by adding masonry infill walls. In order to investigate the effect of infill walls on the redundancy of the steel frame which constructed with masonry walls, the components of redundancy including redundancy variation index, redundancy strength index and redundancy response modification factor were extracted for the frames with masonry infills. Several steel frames with typical storey number and various numbers of bays were designed and considered. The redundancy of frames with and without infill walls was evaluated by proposed method. The results showed the presence of infill causes increase of redundancy.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1061998Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2181
 FEMA356, Prestandard and Commentary for Seismic Rehabilitation of Buildings, Federal Emergency Management Agency, 2000.
 UBC 97, Uniform Building Code, California, U.S.A, 1997.
 NERPH, Recommended Provisions for Seismic Regulations for new Buildings and other structures, Building Seismic Safety Council, FEMA Publication 222A Washington DC, 1997.
 Applied Technology Council (ATC), "Structural response modification factor," Rep., No. ATC-19, Redwood city, Calif., 1995.
 Applied Technology Council (ATC), "Seismic evaluation and retrofit of concrete buildings," Rep., No. ATC-40, Redwood city, Calif., 1996.
 H. Furtura, M. Shinozukia, and Y. N. Chenn,. "Probabilistic fuzzy representation of redundancy in structural system," in Proc. Int. Fuzzy System Associated Congr., PLama Mallorca, Spain. 1985.
 R. D. Bertero, and V. V. Bertero, "Redundancy in earthquake-resistant design," J. Struc. Eng., No. 1, Vol. 125, pp. 81-88, 1999.
 C. H. Wang and Y. K. Wen, "Evaluation of pre-Northridge low rise steel buildings. II: Reliability, J. Struc. Eng., No. 10, Vol. 126, pp. 1169- 1176, 2000.
 M. Husain, and P. Tsopelas, "Measure of structural redundancy in R/C building. I: Redundancy indices." J. Struc. Eng., No. 11, Vol. 130, pp. 1651-1658, 2004.
 H. Gaffarzadeh, L. Keyvani, and M. Rahmani, "Seismic demand of RC frames with masonry infill walls," in Proc. of the 8th In. Congr. on Civil Eng., Shiraz, Iran, 2009.
 P. T. Christensen and M. Baker, Structural reliability theory and its applications, Springer-Verlag, Berlin, Germany.
 Iranian Code of Practice for Seismic Resistance Design of Buildings, Standard No. 2800, 3rd edition, BHRC publication No. S-253, 2005.