Dynamic Analysis of Reinforced Concrete Building with Plan Irregularities
Author: Mohammed yousuf , P.M. shimpale | Size: 867 KB | Format:PDF | Quality:Unspecified | Publisher: International Journal of Emerging Technology and Advanced Engineering Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008 Certified Journal, Volume 3, Issue 9, September 2013) | Year: 2013 | pages: 07
Abstract— The main objective of earthquake engineering is
to design and build a structure in such a way that the damage
to the structure and its structural component during an
earthquake is minimized. This paper aims towards the
dynamic analysis of reinforced concrete building with plan
irregularity. Four models of G+5 building with one symmetric
plan and remaining irregular plan have been taken for the
investigation. The analysis of R.C.C. building is carried out
with the FE based software ETABS 9.5. Estimation of
response such as; lateral forces, base shear, storey drift, storey
shear is carried out. Four cross sectional variation in columns
section are considered for studying effectiveness in resisting
lateral forces. The paper also deals with the effect of the
variation of the building plan on the structural response
building. Dynamic responses under prominent earthquake,
related to IS 1893–2002(part1) have been carried out. In
dynamic analysis; Response Spectrum method is used. The
CQC (complete quadratic combination) method has also been
employed for each model for estimation of dynamic response
for 5%, 10%, 15%, and 20% damping and dynamic responses
were compared.
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Solution of Shear Wall Location in Multi-Storey Building
Author: Anshuman. S , Dipendu Bhunia , Bhavin Ramjiyani | Size: 457 KB | Format:PDF | Quality:Unspecified | Publisher: INTERNATIONAL JOURNAL OF CIVIL AND STRUCTURAL ENGINEERING Volume 2, No 2, 2011 | Year: 2011 | pages: 14
Shear wall systems are one of the most commonly used lateral-load resisting systems in highrise buildings. Shear walls have very high in-plane stiffness and strength, which can be used to simultaneously resist large horizontal loads and support gravity loads, making them quite advantageous in many structural engineering applications. There are lots of literatures
available to design and analyse the shear wall. However, the decision about the location of shear wall in multi-storey building is not much discussed in any literatures. In this paper, therefore, main focus is to determine the solution for shear wall location in multi-storey building based on its both elastic and elasto-plastic behaviours. An earthquake load is calculated and applied to a building of fifteen stories located in zone IV. Elastic and elasto-plastic analyses were performed using both STAAD Pro 2004 and SAP V 10.0.5 (2000) software packages. Shear forces, bending moment and story drift were computed in both the cases and location of shear wall was established based upon the above computations.
I
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Author: Tarun R. Naik,1 M. ASCE, Sandor Kaliszky,2 M. ASCE and Lawrence A. Soltis,3 M. ASCE | Size: 215 KB | Format:PDF | Quality:Unspecified | pages: 06
Shear walls play a dominant role in the static and dynamic analysis and design of low-rise timber buildings. Shear wall behavior is often difficult to describe. For example, low-rise timber buildings have shear walls made of lumber framing and various sheathing materials. The loaddeformation
plot of a shear wall, when subjected to horizontal loads, is
nonlinear. The analysis of a shear wall building thus requires either full-scale test or nonlinear analysis. Full-scale tests do demonstrate true nonlinear behavior; however, they are often too time consuming and expensive for the number of replications necessary for a statisticallyvalid study. Nonlinear analysis often involves mathematical complexity and instability such that limiting assumptions are necessary to simplify the problems. This study describes a mechanical model which simulates the nonlinear behavior of a shear wall and aids in the construction of inexpensive models of entire shear wall buildings. Static and dynamic measurements obtained using these models can provide reliable results for shear wall buildings. Tests on these wall models will be useful to: (1) Observe nonlinear behavior of the "parent"structure without having to conduct fullscale tests; (2) check the accuracy of linear analysis; and (3) verify the results of nonlinear analysis.
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Simulation of the shaking table test of a seven-story shear wall building
Author: Paolo Martinelli , and Filip C. Filippou | Size: 623 KB | Format:PDF | Quality:Unspecified | Publisher: EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS Earthquake Engng Struct. Dyn. 2009; 38:587–607 Published online 13 February 2009 in Wiley InterScience. DOI: 10.1002/eqe.897 | Year: 2009 | pages: 21
This paper presents the simulation of the nonlinear dynamic response of a full-scale seven-story reinforced
concrete shear wall shaking table specimen under base excitations representing four earthquake records
of increasing intensity. The study was motivated by the participation in the blind prediction contest of
the shaking table specimen organized by University of California at San Diego (UCSD), NEES, and
Portland Cement Association (PCA). Owing to the time constraints of the contest a relatively simple
two-dimensional (2d) model was used for the shear wall specimen. In this model, the shear wall was
represented by 2d beam–column elements with fiber discretization of the cross-section that account for
the interaction of the axial force with the bending moment. Upon conclusion of the contest, the available
experimental measurements permitted a thorough examination of the analytical results. While the measured
data confirmed the excellent accuracy of the model predictions, some limitations also became apparent.
The paper addresses the benefits and limitations of the selected modeling strategy and investigates the
sensitivity of this type of model to parameter selection.
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Structural dynamics of slender ductile reinforced concrete shear walls
Author: H.Q.Luu, I.Ghorbanirenani, P.Léger, R.Tremblay | Size: 907 KB | Format:PDF | Quality:Unspecified | Publisher: Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 Leuven, Belgium, 4-6 July 2011 G. De Roeck, G. Degrande, G. Lombaert, G. M¨ uller (eds.) ISBN 978-90-760-1931-4 | Year: 2011 | pages: 8
ABSTRACT: Shake table experiments considering two 9m high wall models with scale factor of 0.43 representative of an 8-storey slender reinforced concrete (RC) shear wall (20.97m in height) were conducted at École Polytechnique de Montréal in 2009. The walls were subjected to typical Eastern North America ground motions rich in high frequency (near 10 Hz). Inelastic behaviour was observed at the base and in the sixth storey. Based on the test data, transient inelastic dynamic analyses are conducted considering the specimens tested on a shake table and an actual wall from a 10-storey building. Nonlinear beam element with fiber element discretization of the cross-section using OpenSees platform is employed. The effects of the damping model selected to represent the seismic response of slender RC shear wall structures are explored. The higher modes effects inducing the formation of second plastic hinge in the upper part of the walls are investigated. Base shear magnification factors prescribed in Canadian and European Codes are also evaluated for their adequacy.
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Dear All
is it possible to give me a link for this congress paper from ASCE library.
thank you all
Performance-Based Engineering of Core Wall Tall Buildings
Sarkisian, M., Long, E., and Hassan, W. (2013) Performance-Based Engineering of Core Wall Tall Buildings. Structures Congress 2013: pp. 1094-1108.
doi: 10.1061/9780784412848.097
- Brings together state of the art on a specific topic
- Works as a practical source of accessible information
- Sets the stage for future research
The State-of-the-Art Report of RILEM Technical Committee 228-MPS on Mechanical properties of Self-Compacting Concrete (SCC) summarizes an extensive body of information related to mechanical properties and mechanical behaviour of SCC. Due attention is given to the fact that the composition of SCC varies significantly. A wide range of mechanical properties are considered, including compressive strength, stress-strain relationship, tensile and flexural strengths, modulus of elasticity, shear strength, effect of elevated temperature, such as fire spalling and residual properties after fire, in-situ properties, creep, shrinkage, bond properties, and structural behaviour. A chapter on fibre-reinforced SCC is included, as well as a chapter on specialty SCC, such as light-weight SCC, heavy-weight SCC, preplaced aggregate SCC, special fibre reinforced SCC, and underwater concrete.
Content Level » Research
Keywords » Bond Properties - Creep and Shrinkage - Mechanical
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