Seismic Performance of Reinforced Concrete Shear Walls with Eccentric Openings

Document Type : Research Article


1 استاد دانشگاه سمنان

2 Department of Civil Engineering, Semnan University Semnan, Iran


The strong earthquakes recorded worldwide have shown that the damages and the failure mechanisms of the reinforced concrete structural walls depend on a series of factors, such as the shape in plan and elevation, the dimensions of the walls and openings. During the past several decades, extensive experimental and analytical studies have been conducted on the behavior of structural walls with openings. This paper describes an analytical study carried out on of reinforced concrete walls with eccentric opening. In order to achieve this goal, variations in various parameters including changes in the aspect ratio of the openings, the stiffness of the link beam, the aspect ratio of the openings with simple connection at the both end of link beams and the aspect ratio of the walls are studied. Story drift, center of mass displacement, shear and moment in coupling beams and axial load in columns which coupled with shear wall are analyzed and compared together. The results showed that by decreasing the aspect ratio of the openings (ho/lo), the axial load in the column coupled with the wall decreases and with increasing rigidity of the link beam the shear forces in link beam increased and center of mass displacement and story drift are reduced. The strength of structural wall components becomes different in pull/push loading direction due to the eccentric opening location. Also, seven buildings have been compared, decreasing the wall aspect ratio from the axial forces in the column and shear forces in the link beam decreases.


Main Subjects

[1]    Ghosh S. K., Reconnaissance Team Report, 2012, Observations from the February 27, 2010, Earthquake in Chile.
[2]    Popescu.C, Sas.G, Sabău.C and Blanksvärd. T., 2016. “Effect of Cut-Out Openings on the Axial Strength of Concrete Walls” J Struct Eng.
[3]    Kheyroddin. A, Hosseini. S.A., 2017, “A survey and study of structural requirements and structural behavior of wall piers in RC structural walls”. 10th National Congress on Civil Engineering. (In persian)
[4]    Moehle.J., 2014, Seismic Design of Reinforced Concrete Buildings, , 1st ed., McGraw-Hill Education.
[5]    Kheyroddin. A, Emami. E, 2018, Shear walls design based on ACI 318-14, 1st ed., Vol. 3, Semnan University.
[6]    CEN (European Committee for Standardization), 2004, Design of concrete structures—Part 1-1: General rules and rules for buildings, EN1992-1-1, Euro code 2, Brussels, Belgium.
[7]    As 3600, 2009, Standards Australia, Concrete Structures.  Sydney Australia.
[8]    Architecture Institute of Japan (AIJ), 2004, Guidelines for Performance Evaluation of Earthquake Resistant Reinforced Concrete Buildings. Architecture Institute of Japan: Tokyo, Japan.
[9]    ACI Committee 318, 2014. Building Code Requirements for Reinforced Concrete (ACI318-14), Amrician Concrete Institute.
[10] Wang.J, Sakashita.M, Kono, S and Tanaka, H., 2010, Shear Behavior of Reinforced Concrete Structural Walls with Eccentric Openings Under Cyclic Loading: Experimental Study, Struct Des Tall Spec Build.
[11] Hosseini. S. A, 2018, “Experimental and analytical behavior of reinforced concrete shear walls with nonstandard opening under cyclic loading”, MS Thesis, Faculty of Civil Engineering, Semnan University.
[12] Stanfford Smith, B. and. Coull, A., 1991 ’’Tall Building Structures, Analysis and Design’’, John Wiley & Sons,Inc.