Push over Analysis of Steel Strengthened Masonry

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Published: Jun 22, 2016

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S. H Farooq
M Ilyas
M Rizwan

Abstract

Strengthening of un-reinforced masonry (URM) structures to improve its seismic performance is not only well recognized among the research community but also getting attention of practicing engineers around the globe. The estimation of lateral capacity and performance of masonry becomes complex because of heterogeneous nature of its constituent materials and other associated problems. Heterogeneous and homogenous approaches are generally adopted for analysis of masonry. In heterogeneous approach, bricks, joints and bed mortar are modeled separately whereas; in homogeneous approach the masonry is modeled as one continuum body. Earlier approach requires more efforts but level of accuracy of both the approaches is almost same. In the present work, the homogenous approach is used to model the masonry wall panels. The behaviour of the un-reinforced and steel strengthened masonry wall panels is determined from push over analysis using a commercial finite element package MSC-MARCS 2003. The aim of this analysis was to study the lateral load– displacement behaviour and failure mechanism of strengthened masonry under monotonic lateral loading. Four single leaf panels with aspect ratio of 1.0 were constructed on strong floor of structural laboratory. The square panels having dimension of 1200 mm were constructed using same type of material and workmanship. Of them; one wall panel was unreinforced reference and remaining were strengthened with square steel mesh. Firstly the specimens were tested till failure under monotonic lateral loading and later finite element analysis of the same specimens was carried out using MARCS2003. The analytical lateral force - lateral displacement relationship and region of stress concentrations were analyzed to depict the lateral capacity and failure mechanism of strengthened masonry wall panels. At the end the analytical results were compared with the experimental recorded values and the analytical results were found in good agreement with the experimental values.

Article Details

Issue
2012: Volume 10 JAN 2012
Section
Civil Engineering,Structures, Construction, Geo technology, Water, Transportation

References

Alshuwaikhat, H. M. (1999). Planning the 21st century urban neighbourhood: Learning from previous concepts. Journal of King Saud University Architecture & Planning,11, 13-29.

Barclay, C. (2011). Eco towns. Standard note: SN/SC/4406. London: House of Commons Library. Retrieved August 1, 2011, from: http://www.parliament.uk/briefingpapers/SN04406.pdf

Berk, MG. (2005, October). Concept of neighbourhood in contemporary residential environments: An investigation of occupants’ perception. Paper presented at the International Conference on Doing, Thinking, Feeling Home, Delft, The Netherlands.

BoS/GoPb. (2011). Punjab development statistics 2011. Lahore: Bureau of Statistics, Government of the Punjab.

Bramley, G. & Power, S. (2009). Urban form and social sustainability: the role of density and housing type. Environment and Planning B: Planning and Design, 36, 30-48.

Broadbent, G. (1990). Emerging concepts in urban space design. London: Van Nostrand Reinhold.

Burke, G. (1971). Towns in the making. London: Edward Arnold.

C & LG. (2009). Planning policy statement: eco-towns- A supplement to planning policy statement 1. London: Communities and Local Government, Retrieved August 1. 2011, from http://www.communities.gov.uk/publications/p lanningandbuilding/pps-ecotowns

Dave, S. (2011). Neighbourhood density and social sustainability in cities of developing countries. Sustainable Development, 19, 189- 205.

Talen, E (2002). Pedestrian access as a measure of urban quality, Planning Practice and Research, 17, 257-278.

Gatti, RF. (1969). Thoughts on Radburn: The town for motor age. The Radburn Association. Retrieved August 15, 2011, from http://www.radburn.org/geninfo/history.html

Gindroz, R. et al. (2003). The urban design handbook: Techniques and working methods. New York: W .W. Norton & Company, Inc.

Hass-Kalau C., Nold I., Bocker G., Crampton G. (1992). Civilized street: A guide to traffic calming. Brighton: Environmental and Transport Planning.

Iqbal, S. (2006, August). Presentation on national housing policy-2001. Presented at 2nd Build Asia International Exhibition & ICCI Conference, Karachi, Retrieved September 6, 2011, from www.buildasia.net/buildasia2006/icci/downloa ds/Saleem_Iqbal.pdf

Kallus, R. & Law-Yone H. (2000). What is a neighbourhood? The structure and function of an idea. Environment and Planning B: Planning and Design, 27, 815-826.

Kim, J. (2007). Perceiving and valuing sense of community in a new urbanist development: A case study of Kentlands, Journal of Urban Design, 12, 203-230.

Song, Y. & Knaap, G. J. (2003). New urbanism and housing values: A disaggregate assessment. Journal of Urban Economics, 54, 218-238.

LDA (2011). Metropolitan Planning Wing Record. Unpublished. Lahore Development Authority, Lahore.

Lewis, H. M. (1949). Planning the modern city. Vol. 2. New York: John Wiley & Sons.

LG & CD/GoPb. (2010). Punjab private housing schemes and land sub-division rules 2010. Lahore: Local Government and Community Development Department, Government of the Punjab.

Lowry, R. (2012). Concepts & Applications of Inferential Statistics. Retrieved November 21,2012,from http://vassarstats.net/textbook/index.html

Lund, H. (2002). Pedestrian environments and sense of community. Journal of Planning Education and Research, 21:3, 301-312.

Lund, H. (2003). Testing the claims of New Urbanism: Local access, pedestrian travel, and neighboring behaviors , Journal of the American Planning Association, 69, 414-429.

MacIntyre, S. & Ellaway, A. (2000). Ecological approaches: Rediscovering the role of the physical and social environment. (In L. F. Berkman & I. Kawachi (Eds.), Social epidemiology. New York: Oxford Press).

Mustafa, S. & Ashraf, Z. (2010). A study on the practice and performance of energy efficient residential buildings in Lahore. Dissertation, Unpublished. University of Engineering and Technology, Lahore.

Neuman, WL. (1996). Social research methods: Qualitative and quantitative approaches. 3rd ed. England: Allyn & Bacon.

NU (2002). Creating liveable neighbourhoods. Retrieved August 15, 2011, from http://www.newurbanism.org

PMD. (2008). Climate records. Climate Data Processing Centre. Pakistan Meteorological Department, Karachi, Retrieved September 5, 2011,from http://www.pakmet.com.pk/cdpc/home.htm [28] Podobnik, B. (2002). New Urbanism and the Generation of Social Capital: Evidence from Orenco Station. National Civic Review, 91, 245-255.

Rubenstein, H. M. (1987). A guide to site and environmental planning. 3rd ed. England: John Wiley and Sons.

Spreiregen, P. D. (1965). Urban design: The architecture of towns and cities. New York: McGraw-Hill.

SPSS (2009). Statistical coach. Statistical Package for Social Sciences. USA: SPSS Inc.

UCPB. (2010). Traditional neighbourhood design: Lessons and best practices. Planning guide 2/2010. New York: Ulster County Planning Board. Retrieved July 26, 2011 from www.co.ulster.ny.us/planning/ucpb/publicatio ns/tnd guide.pdf

Wood, L., Frank, L. D. & Giles-Corti, B. (2010). Sense of community and its relationship with walking and neighbourhood design, Social Science & Medicine, 70, 1381- 1390.

Yang, Y. (2008). A tale of two cities: Physical form and neighborhood satisfaction in metropolitan Portland and Charlotte. Journal of the American Planning Association, 74, 307-323.