American Journal of Civil Engineering
Volume 6, Issue 1, January 2018, Pages: 24-33
Received: Sep. 24, 2017;
Accepted: Oct. 23, 2017;
Published: Jan. 2, 2018
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Girma Zewdie Tsige, Department of Civil Engineering, Addis Ababa Institute of Technology, Addis Ababa, Ethiopia
Adil Zekaria, Department of Civil Engineering, Addis Ababa Institute of Technology, Addis Ababa, Ethiopia
Unreinforced masonry Infills modify the behavior of framed structures under lateral loads; however, in practice, the infill stiffness is commonly ignored in frame analysis, resulting in an under-estimation of stiffness and natural frequency. The structural effect of hollow concrete block infill is generally not considered in the design of columns as well as other structural components of RC frame structures. The hollow concrete block walls have significant in-plane stiffness contributing to the stiffness of the frame against lateral load. The scope of present work was to study seismic performance of reinforced concrete buildings with masonry infill in medium rise building. The office medium rise building is analyzed for earthquake force by considering three type of structural system. i.e. Bare Frame system, partially-infilled and fully- Infilled frame system. Effectiveness of masonry wall has been studied with the help of five different models. Infills were modeled using the equivalent strut approach. Nonlinear static analyses for lateral loads were performed by using standard package ETABS, 2015 software. The comparison of these models for different earthquake response parameters like base shear vs roof displacement, Story displacement, Story shear and member forces are carried out. It is observed that the seismic demand in the bare frame is significantly large when infill stiffness is not considered, with larger displacements. This effect, however, is not found to be significant in the infilled frame systems. The results are described in detail in this paper.
Girma Zewdie Tsige,
Seismic Performance of Reinforced Concrete Buildings with Masonry Infill, American Journal of Civil Engineering.
Vol. 6, No. 1,
2018, pp. 24-33.
Polyakov, S. V., 1960. On the interaction between masonry filler walls and enclosing frame when loaded in the plane of the wall, Translations in earthquake Engineering. EERI, San Francisco, 36–42.
Stafford-Smith, B., and Carter, C., 1969. A method for the analysis of infilled frames, Proc, nst. Civ. Engrs, 44, 31–48.
Stafford-Smith, B., 1962. Lateral stiffness of infilled frames, J. Struct. Div, 88 (6), 183–199.
Mainstone, R. J., 1971. On the stiffness and strength of infilled frames, Proc, Inst. Civ. Engrs, Supplement IV, 57–90 (paper 7360S).
Klingner, R. E., and Bertero, V. V. Earthquake resistance of infilled frames, Journal of structural Devision, ASCE, vol 104, NO. ST6, 1978, pp. 973-989.
Holmes M. Steel frames with brickwork and concrete infilling. Proceedings of the Institution of Civil Engineers 19, 1961.
Dhanasekar, M., Page, A. W., 1986. The influence of brick masonry infill properties on the behavior of infilled frames, Proc, Inst. Civ. Engrs, London, 81, 593 – 605.
A. K. Chopra, Dynamics of Structures, Prentice Hall, Englewood Cliffs, NJ, USA, 1995.
Catherin Jeselia M., Modeling of Masonry infills, American Journal of Engineering, 2013.
ETABS, User Interface Reference Manual. 2002, Computers & Structures (CSi): California.
American Society of Civil Engineers, ASCE-41: Seismic Rehabilitation of Existing Buildings. 2006: Virginia.
Federal Emergency Management Agency, FEMA-356: Pre-standard and Commentary for the Seismic Rehabilitation of Buildings. 2000: Washington DC.
Applied Technology Council, ATC-40: Seismic Evaluation and Retrofit of Concrete buildings. 1996: California.
Ghassan Al-Chaar, Evaluating Strength and Stiffness of Unreinforced Masonry Infill Structures. 2002: US army corps of Engineers.
M. Selim Gunay, A practical Guide to Nonlinear static analysis of reinforced concrete buildings with masonry infill walls, University of California, Berkeley.
Mohammad H. Jinya V. R. Patel, Analysis Of Rc Frame With And Without Masonry Infill Wall With Different Stiffness With Outer Central Opening: International Journal of Research in Engineering and Technology, 2014.
W. Axleyand V. V. Bertero, Infill Panels: Their Influence on Seismic Response of Buildings, EERC, University of California, Berkeley, CA, Rep. UCB/EERC-79/28.1969
ESEN1998: 2015, Design of Structures for Earthquake Resistance. Ethiopian Building Code Standard prepared by Ministry of Works and Urban Development. Addis Ababa, Ethiopia.
Asteris et al, P. G. and Tzamtzis, A. D., 2003. “On the Use of a Regular Yield Surface for the Analysis of Unreinforced Masonry Walls”. Electronic Journal of Structural Engineering.
ESEN1992: 2015, Design of Concrete Structures. Ethiopian Building Code Standard prepared by Ministry of Works and Urban Development. Addis Ababa, Ethiopia.
ESEN1996: 2015, Design of Masonry Structures. Ethiopian Building Code Standard prepared by Ministry of Works and Urban Development. Addis Ababa, Ethiopia.
EN1998-1-1:2005, Euro code 8: Design of structures for earthquake.
T. Paulay and M. Priestley, Seismic Design of Reinforced Concrete and Masonry Buildings. New York: Jhon Wiley & Sons, 1992.
ESEN1991: 2015,--Basis of design and actions on structure Ethiopian Building Code Standard prepared by Ministry of Works and Urban Development. Addis Ababa, Ethiopia.
FEMA 273, NEHRP Commentary on the Guidelines for the Seismic Rehabilitation of Buildings, FEMA, October 1997.
FEMA 306, “Evaluation of Earthquake Damaged Concrete and Masonry Wall Buildings: Basic Procedures Manual,” Federal Emergency Management Agency, 1998.
FEMA 310, Handbook for the Seismic Evaluation of Buildings – A Prestandard, FEMA, January 1998.
Patnala VS Neelima, Ramancharla Pradeep Kumar, Seismic Behavior of RC Frame with URM Infill: Case Study, International Journal of Education and Applied Research (IJEAR), Vol. 4, Issue Spl-2, Jan-June 2014.
D. B. Karwar and Dr. R. S. Londhe (2014), Performance of RC Framed Structure by Using Pushover Analysis, International Journal of Emerging Technology and Advanced Engineering.
Vikas Govalkar, P. J. Salunke, N. G. Gore(2014), Analysis of Bare Frame and Infilled Frame with Different Position of Shear Wall, International Journal of Recent Technology and Engineering (IJRTE), 2277-3878.
S. Niruba, K. V. Boobalakrishnan, and K. M. Gopalakrishnan (2014), Analysis of Masonry Infill In A Multi-Storied Building, International Refereed Journal of Engineering and Science, 2319-1821(3), 26-31.
Mohammad H. Jinya and V. R. Patel(2014), ANALYSIS OF RC FRAME WITH AND WITHOUT MASONRY INFILL WALL WITH DIFFERENT STIFFNESS WITH OUTER CENTRAL OPENING, International Journal of Research in Engineering and Technology, 2319-1163(3), 2321-7308.