Abstract

Due to the current popularity of reinforced concrete (RC) wall construction, and the new published of codes of concrete, RC walls have become just as an important structural elements as beam, slabs and columns. This paper presents an experimental study of structural behavior of thin concrete wall panels subjected to axial eccentric uniformly distributed loading with varying aspect ratio (AR=H/L) and concrete type (concrete strength (f 'c)). The experimental program included testing of six two-way thin concrete wall panels, fixed at all sides and applying the load axially with eccentricity equal to wall thickness/6).The results indicate that the load carrying capacity of the normal strength concrete (NSC) wall panels decreased with the increase in AR (H/L) from 1.25 to 2.00, the ultimate load reduced from 37.5% to 14.6 % when AR decreased from 2.00 to 1.25. For Reactive Powder Concrete (RPC), the ultimate load reduced from 38.7% to 16% when AR decreased from 2.00 to 1.25. The strength of the concrete wall increases with the increase in concrete strength (f 'c) from 33.5 MPa to 120.4 MPa , the increase is about (212.5, 207.3, 206.67) % for panels with H/L = (1.25, 1.50, 2.00) respectively. The lateral deflections of concrete wall panels depend on the aspect ratio (H/L) where, the increase in aspect ratio (H/L) from 1.25 to 2.00 of NSC panels causes increasing the lateral deflection of the concrete wall panels, while for Reactive Powder Concrete (RPC) wall panels the increase in aspect ratio (H/L) from 1.25 to 2.00 causes decreasing in the lateral deflection of the concrete wall panels. Also the lateral deflection depends on concrete type (concrete strength (f 'c)), when strength of the concrete wall panel increases from 33.5 to 120.4 MPa, the lateral deflection decreases.

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The article was added to IASJ on 2017-08-28

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