Structural behavior of modified reactive powder and reactive powder concrete wall panels subjected to axial distributed loading

الملخص EN

This study presents an experimental investigation of behavior of concrete wall panels subjected to axial distributed loading, also evaluates the effect of slenderness ratio( H/t ) ,and concrete strength on lateral deflection and behavior of concrete wall panels.

The experimental program includes testing eight concrete wall panels hinged at top and bottom with free sides, by applying distributed load.

These panels divided in to four groups, the first group with normal strength concrete, the second group with high strength concrete, the third group with modified reactive powder concrete (MRPC) and the fourth group with reactive powder concrete (RPC).

Each group consists of two panels, one with slenderness ratio H/t=20 and the other with H/t=14.

The obtained results indicates that as the concrete strength of wall panels increase, the behavior of the panels tends towards the brittle failure , also the results shows that the lateral deflection of the panel increase as the slenderness ratio (H/t) increase.

The failure load for panels with RPC mix is greater than the failure load for panels with normal, high strength, MRPC mixes by about 96%, 39% and 17% respectively for (H/t=20).The failure load for panels with RPC mix is more than the failure load for panels with normal, high strength, MRPC mixes by about 98%, 36%, 16% respectively for H/t=14.

The mode of failure for all panels was buckling failure and the line of failure lies near the center of the panel.